Extracting prog: 1m1.86515826s
Minimizing prog: 22m35.589856551s
Simplifying prog options: 0s
Extracting C: 57.517833435s
Simplifying C: 3m27.510171176s


extracting reproducer from 5 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-bind$tipc-setsockopt$TIPC_GROUP_JOIN-sendmsg$tipc-ioctl$DM_TABLE_LOAD-socketpair-pwrite64-openat$tun
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r7 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r7, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
bind$tipc(r7, &(0x7f00000005c0)=@nameseq={0x1e, 0x1, 0x3, {0x42, 0x2000002, 0xfffffffe}}, 0x10)
setsockopt$TIPC_GROUP_JOIN(r6, 0x10f, 0x87, &(0x7f0000000600)={0x42, 0x3, 0x2}, 0x10)
sendmsg$tipc(r6, &(0x7f0000000640)={&(0x7f0000000680)=@name={0x1e, 0x2, 0x3, {{0x42, 0x3}, 0x2}}, 0x10, 0x0}, 0x4000891)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})
socketpair(0xa, 0x4, 0x50d, &(0x7f0000000000)={<r8=>0xffffffffffffffff})
pwrite64(r8, &(0x7f00000003c0)="203ea8738cb7885903f3deb48c2fafc99f1d07a44b2e559de5a0c31ee65b2f98e4dbc6497655abfd7c0a5f81d2e6ae44f8563f3cd95e25b93ba15bf04c6208c041a5072167a40cc6b4e2bb986f0fcc93083548b90e303d085a91e74d6bef88e10f96c97dcc1c0b9a911940db9933849f8aaf712dc958f9c803a1fca878c3ccdef5e483e69704bc633cfa1d9dcc01094c71413cf5", 0x94, 0x800)
openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
single: successfully extracted reproducer
found reproducer with 30 syscalls
minimizing guilty program
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-bind$tipc-setsockopt$TIPC_GROUP_JOIN-sendmsg$tipc-ioctl$DM_TABLE_LOAD-socketpair-pwrite64
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r7 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r7, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
bind$tipc(r7, &(0x7f00000005c0)=@nameseq={0x1e, 0x1, 0x3, {0x42, 0x2000002, 0xfffffffe}}, 0x10)
setsockopt$TIPC_GROUP_JOIN(r6, 0x10f, 0x87, &(0x7f0000000600)={0x42, 0x3, 0x2}, 0x10)
sendmsg$tipc(r6, &(0x7f0000000640)={&(0x7f0000000680)=@name={0x1e, 0x2, 0x3, {{0x42, 0x3}, 0x2}}, 0x10, 0x0}, 0x4000891)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})
socketpair(0xa, 0x4, 0x50d, &(0x7f0000000000)={<r8=>0xffffffffffffffff})
pwrite64(r8, &(0x7f00000003c0)="203ea8738cb7885903f3deb48c2fafc99f1d07a44b2e559de5a0c31ee65b2f98e4dbc6497655abfd7c0a5f81d2e6ae44f8563f3cd95e25b93ba15bf04c6208c041a5072167a40cc6b4e2bb986f0fcc93083548b90e303d085a91e74d6bef88e10f96c97dcc1c0b9a911940db9933849f8aaf712dc958f9c803a1fca878c3ccdef5e483e69704bc633cfa1d9dcc01094c71413cf5", 0x94, 0x800)

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-bind$tipc-setsockopt$TIPC_GROUP_JOIN-sendmsg$tipc-ioctl$DM_TABLE_LOAD-socketpair
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r7 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r7, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
bind$tipc(r7, &(0x7f00000005c0)=@nameseq={0x1e, 0x1, 0x3, {0x42, 0x2000002, 0xfffffffe}}, 0x10)
setsockopt$TIPC_GROUP_JOIN(r6, 0x10f, 0x87, &(0x7f0000000600)={0x42, 0x3, 0x2}, 0x10)
sendmsg$tipc(r6, &(0x7f0000000640)={&(0x7f0000000680)=@name={0x1e, 0x2, 0x3, {{0x42, 0x3}, 0x2}}, 0x10, 0x0}, 0x4000891)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})
socketpair(0xa, 0x4, 0x50d, &(0x7f0000000000))

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-bind$tipc-setsockopt$TIPC_GROUP_JOIN-sendmsg$tipc-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r7 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r7, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
bind$tipc(r7, &(0x7f00000005c0)=@nameseq={0x1e, 0x1, 0x3, {0x42, 0x2000002, 0xfffffffe}}, 0x10)
setsockopt$TIPC_GROUP_JOIN(r6, 0x10f, 0x87, &(0x7f0000000600)={0x42, 0x3, 0x2}, 0x10)
sendmsg$tipc(r6, &(0x7f0000000640)={&(0x7f0000000680)=@name={0x1e, 0x2, 0x3, {{0x42, 0x3}, 0x2}}, 0x10, 0x0}, 0x4000891)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-bind$tipc-setsockopt$TIPC_GROUP_JOIN-sendmsg$tipc
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r5 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r5, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
bind$tipc(r6, &(0x7f00000005c0)=@nameseq={0x1e, 0x1, 0x3, {0x42, 0x2000002, 0xfffffffe}}, 0x10)
setsockopt$TIPC_GROUP_JOIN(r5, 0x10f, 0x87, &(0x7f0000000600)={0x42, 0x3, 0x2}, 0x10)
sendmsg$tipc(r5, &(0x7f0000000640)={&(0x7f0000000680)=@name={0x1e, 0x2, 0x3, {{0x42, 0x3}, 0x2}}, 0x10, 0x0}, 0x4000891)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-bind$tipc-setsockopt$TIPC_GROUP_JOIN-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r7 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r7, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
bind$tipc(r7, &(0x7f00000005c0)=@nameseq={0x1e, 0x1, 0x3, {0x42, 0x2000002, 0xfffffffe}}, 0x10)
setsockopt$TIPC_GROUP_JOIN(r6, 0x10f, 0x87, &(0x7f0000000600)={0x42, 0x3, 0x2}, 0x10)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-bind$tipc-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r7 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r7, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
bind$tipc(r7, &(0x7f00000005c0)=@nameseq={0x1e, 0x1, 0x3, {0x42, 0x2000002, 0xfffffffe}}, 0x10)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-bind$tipc-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
r7 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r7, &(0x7f0000000580)=@name={0x1e, 0x2, 0x0, {{0x42}}}, 0x10)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-socket$tipc-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
socket$tipc(0x1e, 0x2, 0x0)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-bind$tipc-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
r6 = socket$tipc(0x1e, 0x2, 0x0)
bind$tipc(r6, &(0x7f0000000540)=@nameseq={0x1e, 0x1, 0x0, {0x42, 0x0, 0x1}}, 0x10)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-socket$tipc-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
socket$tipc(0x1e, 0x2, 0x0)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r5=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-sendmsg$netlink-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
r4 = socket$netlink(0x10, 0x3, 0x0)
sendmsg$netlink(r4, &(0x7f0000000880)={0x0, 0x0, &(0x7f00000008c0)=[{&(0x7f0000000900)={0x20, 0x11, 0x100, 0x0, 0x25dfdbff, "", [@nested={0x10, 0x0, 0x0, 0x0, [@typed={0xb, 0x0, 0x0, 0x0, @binary="56ccabd869c203"}]}]}, 0x20}], 0x1, 0x0, 0x0, 0xc010}, 0x20040080)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-socket$netlink-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
socket$netlink(0x10, 0x3, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r4=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-umount2-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
umount2(&(0x7f0000000840)='./proc\x00', 0x2)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r4=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-recvfrom$inet6-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
recvfrom$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r4=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$sock_inet6_SIOCSIFADDR-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$sock_inet6_SIOCSIFADDR(0xffffffffffffffff, 0x8916, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r4=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$sock_SIOCGIFINDEX-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000800)={'lo\x00'})
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r4=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-recvfrom-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
recvfrom(r3, 0x0, 0x0, 0x100, 0x0, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r4=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-sendto$inet6-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
r3 = socket$inet6(0x10, 0x1, 0x7)
sendto$inet6(r3, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r4=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-socket$inet6-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
socket$inet6(0x10, 0x1, 0x7)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r3=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-setsockopt$inet6_mreq-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1c, &(0x7f00000007c0)={@remote}, 0x14)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r3=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$TUNSETNOCSUM-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r3=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$TUNSETIFF-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$TUNSETIFF(r2, 0x400454ca, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r3=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-openat$tun-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
openat$tun(0xffffffffffffff9c, &(0x7f0000000780), 0x0, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r2=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-setsockopt$inet6_mreq-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000740)={@dev={0xfe, 0x80, '\x00', 0xd}}, 0x14)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r2=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-setsockopt$inet6_mreq-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
r1 = socket$inet6(0xa, 0x80002, 0x0)
setsockopt$inet6_mreq(r1, 0x29, 0x1b, &(0x7f0000000700)={@remote}, 0x14)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r2=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-socket$inet6-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
socket$inet6(0xa, 0x80002, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r1=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-mkdirat-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000006c0)='./proc\x00', 0x1ff)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r1=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r1=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
ioctl$DM_DEV_CREATE(0xffffffffffffffff, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r0=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(0xffffffffffffffff, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r0}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, 0x0, 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r1=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, 0x0)
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r1=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r1=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD
detailed listing:
executing program 0:
r0 = openat$dm_control(0xffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000002440)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x80800, 0x0, 0x0, {<r1=>0x0, {'syz', 0x0, '2\x00'}, @uuid={'LVM-syz', 0x0, '1\x00'}}})
ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000140)={0x4, 0x0, 0x0, 0x1b8, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x2018, 0x0, 0x80, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x1}, 0x20, 'P', 0x20, '7', ' 2 discard_zeroes_cow discard_passdown_origin'}}]})

program crashed: KASAN: slab-use-after-free Read in snapshot_ctr
validation run: crashed=true
reproducing took 29m27.942155265s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in snapshot_ctr+0x586/0x1350 drivers/md/dm-snap.c:1288
Read of size 8 at addr ffff8881083ee198 by task syz.2.17/383

CPU: 0 UID: 0 PID: 383 Comm: syz.2.17 Not tainted syzkaller #0 f4dc25654f8255e5780388d900d0b326847aed68
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_address_description+0x71/0x210 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:481
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 __asan_report_load8_noabort+0x18/0x20 mm/kasan/report_generic.c:381
 snapshot_ctr+0x586/0x1350 drivers/md/dm-snap.c:1288
 dm_table_add_target+0x59f/0xcb0 drivers/md/dm-table.c:760
 populate_table drivers/md/dm-ioctl.c:1494 [inline]
 table_load+0x2eb/0x7d0 drivers/md/dm-ioctl.c:1536
 ctl_ioctl drivers/md/dm-ioctl.c:2104 [inline]
 dm_ctl_ioctl+0x8f3/0xde0 drivers/md/dm-ioctl.c:2126
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x123/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fafbc19f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe5fd96c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fafbc425fa0 RCX: 00007fafbc19f559
RDX: 0000200000000140 RSI: 00000000c138fd09 RDI: 0000000000000003
RBP: 00007fafbc236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fafbc425fac R14: 00007fafbc425fa0 R15: 00007fafbc425fa0
 </TASK>

Allocated by task 383:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __kmalloc_cache_node_noprof+0x225/0x430 mm/slub.c:4438
 kmalloc_node_noprof include/linux/slab.h:1004 [inline]
 open_table_device drivers/md/dm.c:758 [inline]
 dm_get_table_device+0x1e3/0x6c0 drivers/md/dm.c:837
 dm_get_device+0x32b/0x7f0 drivers/md/dm-table.c:394
 snapshot_ctr+0x292/0x1350 drivers/md/dm-snap.c:1273
 dm_table_add_target+0x59f/0xcb0 drivers/md/dm-table.c:760
 populate_table drivers/md/dm-ioctl.c:1494 [inline]
 table_load+0x2eb/0x7d0 drivers/md/dm-ioctl.c:1536
 ctl_ioctl drivers/md/dm-ioctl.c:2104 [inline]
 dm_ctl_ioctl+0x8f3/0xde0 drivers/md/dm-ioctl.c:2126
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x123/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Freed by task 383:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 close_table_device drivers/md/dm.c:814 [inline]
 dm_put_table_device+0x298/0x2e0 drivers/md/dm.c:857
 upgrade_mode drivers/md/dm-table.c:328 [inline]
 dm_get_device+0x571/0x7f0 drivers/md/dm-table.c:405
 snapshot_ctr+0x435/0x1350 drivers/md/dm-snap.c:1283
 dm_table_add_target+0x59f/0xcb0 drivers/md/dm-table.c:760
 populate_table drivers/md/dm-ioctl.c:1494 [inline]
 table_load+0x2eb/0x7d0 drivers/md/dm-ioctl.c:1536
 ctl_ioctl drivers/md/dm-ioctl.c:2104 [inline]
 dm_ctl_ioctl+0x8f3/0xde0 drivers/md/dm-ioctl.c:2126
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x123/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff8881083ee180
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 24 bytes inside of
 freed 96-byte region [ffff8881083ee180, ffff8881083ee1e0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1083ee
flags: 0x4000000000000000(zone=1)
page_type: f5(slab)
raw: 4000000000000000 ffff888100041280 ffffea000423f600 dead000000000004
raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 3168062823, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1864
 prep_new_page+0x2d/0x180 mm/page_alloc.c:1872
 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3949
 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5316
 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1
 allocate_slab+0x69/0x430 mm/slub.c:2687
 new_slab mm/slub.c:2741 [inline]
 ___slab_alloc+0x591/0x8c0 mm/slub.c:3934
 __slab_alloc mm/slub.c:4025 [inline]
 __slab_alloc_node mm/slub.c:4078 [inline]
 slab_alloc_node mm/slub.c:4239 [inline]
 __kmalloc_cache_noprof+0x2cd/0x470 mm/slub.c:4421
 kmalloc_noprof include/linux/slab.h:882 [inline]
 kzalloc_noprof include/linux/slab.h:1117 [inline]
 call_usermodehelper_setup+0x97/0x300 kernel/umh.c:363
 kobject_uevent_env+0x65f/0x7e0 lib/kobject_uevent.c:628
 kobject_uevent+0x21/0x40 lib/kobject_uevent.c:656
 device_add+0x599/0xbf0 drivers/base/core.c:3673
 netdev_register_kobject+0x196/0x330 net/core/net-sysfs.c:2135
 register_netdevice+0x1042/0x1a80 net/core/dev.c:10621
 register_netdev+0x42/0x60 net/core/dev.c:10758
 sit_init_net+0x269/0x520 net/ipv6/sit.c:1865
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881083ee080: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
 ffff8881083ee100: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff8881083ee180: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                            ^
 ffff8881083ee200: 00 00 00 00 00 00 00 00 00 00 04 fc fc fc fc fc
 ffff8881083ee280: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
==================================================================
device-mapper: table: 252:0: device 1:5 not in table devices list
device-mapper: table: 252:0: snapshot: COW device cannot be the same as origin device (-EINVAL)
device-mapper: ioctl: error adding target to table
device-mapper: table: 252:0: dm_table_destroy: dm_put_device call missing for 1:5

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in snapshot_ctr+0x586/0x1350 drivers/md/dm-snap.c:1288
Read of size 8 at addr ffff8881083ee198 by task syz.2.17/383

CPU: 0 UID: 0 PID: 383 Comm: syz.2.17 Not tainted syzkaller #0 f4dc25654f8255e5780388d900d0b326847aed68
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_address_description+0x71/0x210 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:481
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 __asan_report_load8_noabort+0x18/0x20 mm/kasan/report_generic.c:381
 snapshot_ctr+0x586/0x1350 drivers/md/dm-snap.c:1288
 dm_table_add_target+0x59f/0xcb0 drivers/md/dm-table.c:760
 populate_table drivers/md/dm-ioctl.c:1494 [inline]
 table_load+0x2eb/0x7d0 drivers/md/dm-ioctl.c:1536
 ctl_ioctl drivers/md/dm-ioctl.c:2104 [inline]
 dm_ctl_ioctl+0x8f3/0xde0 drivers/md/dm-ioctl.c:2126
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x123/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fafbc19f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe5fd96c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fafbc425fa0 RCX: 00007fafbc19f559
RDX: 0000200000000140 RSI: 00000000c138fd09 RDI: 0000000000000003
RBP: 00007fafbc236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fafbc425fac R14: 00007fafbc425fa0 R15: 00007fafbc425fa0
 </TASK>

Allocated by task 383:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __kmalloc_cache_node_noprof+0x225/0x430 mm/slub.c:4438
 kmalloc_node_noprof include/linux/slab.h:1004 [inline]
 open_table_device drivers/md/dm.c:758 [inline]
 dm_get_table_device+0x1e3/0x6c0 drivers/md/dm.c:837
 dm_get_device+0x32b/0x7f0 drivers/md/dm-table.c:394
 snapshot_ctr+0x292/0x1350 drivers/md/dm-snap.c:1273
 dm_table_add_target+0x59f/0xcb0 drivers/md/dm-table.c:760
 populate_table drivers/md/dm-ioctl.c:1494 [inline]
 table_load+0x2eb/0x7d0 drivers/md/dm-ioctl.c:1536
 ctl_ioctl drivers/md/dm-ioctl.c:2104 [inline]
 dm_ctl_ioctl+0x8f3/0xde0 drivers/md/dm-ioctl.c:2126
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x123/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Freed by task 383:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 close_table_device drivers/md/dm.c:814 [inline]
 dm_put_table_device+0x298/0x2e0 drivers/md/dm.c:857
 upgrade_mode drivers/md/dm-table.c:328 [inline]
 dm_get_device+0x571/0x7f0 drivers/md/dm-table.c:405
 snapshot_ctr+0x435/0x1350 drivers/md/dm-snap.c:1283
 dm_table_add_target+0x59f/0xcb0 drivers/md/dm-table.c:760
 populate_table drivers/md/dm-ioctl.c:1494 [inline]
 table_load+0x2eb/0x7d0 drivers/md/dm-ioctl.c:1536
 ctl_ioctl drivers/md/dm-ioctl.c:2104 [inline]
 dm_ctl_ioctl+0x8f3/0xde0 drivers/md/dm-ioctl.c:2126
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x123/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff8881083ee180
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 24 bytes inside of
 freed 96-byte region [ffff8881083ee180, ffff8881083ee1e0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1083ee
flags: 0x4000000000000000(zone=1)
page_type: f5(slab)
raw: 4000000000000000 ffff888100041280 ffffea000423f600 dead000000000004
raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 3168062823, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1864
 prep_new_page+0x2d/0x180 mm/page_alloc.c:1872
 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3949
 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5316
 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1
 allocate_slab+0x69/0x430 mm/slub.c:2687
 new_slab mm/slub.c:2741 [inline]
 ___slab_alloc+0x591/0x8c0 mm/slub.c:3934
 __slab_alloc mm/slub.c:4025 [inline]
 __slab_alloc_node mm/slub.c:4078 [inline]
 slab_alloc_node mm/slub.c:4239 [inline]
 __kmalloc_cache_noprof+0x2cd/0x470 mm/slub.c:4421
 kmalloc_noprof include/linux/slab.h:882 [inline]
 kzalloc_noprof include/linux/slab.h:1117 [inline]
 call_usermodehelper_setup+0x97/0x300 kernel/umh.c:363
 kobject_uevent_env+0x65f/0x7e0 lib/kobject_uevent.c:628
 kobject_uevent+0x21/0x40 lib/kobject_uevent.c:656
 device_add+0x599/0xbf0 drivers/base/core.c:3673
 netdev_register_kobject+0x196/0x330 net/core/net-sysfs.c:2135
 register_netdevice+0x1042/0x1a80 net/core/dev.c:10621
 register_netdev+0x42/0x60 net/core/dev.c:10758
 sit_init_net+0x269/0x520 net/ipv6/sit.c:1865
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881083ee080: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
 ffff8881083ee100: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>ffff8881083ee180: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                            ^
 ffff8881083ee200: 00 00 00 00 00 00 00 00 00 00 04 fc fc fc fc fc
 ffff8881083ee280: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
==================================================================
device-mapper: table: 252:0: device 1:5 not in table devices list
device-mapper: table: 252:0: snapshot: COW device cannot be the same as origin device (-EINVAL)
device-mapper: ioctl: error adding target to table
device-mapper: table: 252:0: dm_table_destroy: dm_put_device call missing for 1:5