Extracting prog: 2m52.699778246s Minimizing prog: 50m34.571339242s Simplifying prog options: 0s Extracting C: 34.465505713s Simplifying C: 7m2.35659662s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-close-add_key$user-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) close(r3) add_key$user(&(0x7f00000000c0), &(0x7f0000000100), &(0x7f0000000140), 0xc9, 0xfffffffffffffffd) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 1m40s testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-close-add_key$user-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) close(r3) add_key$user(&(0x7f00000000c0), &(0x7f0000000100), &(0x7f0000000140), 0xc9, 0xfffffffffffffffd) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr single: successfully extracted reproducer found reproducer with 22 syscalls minimizing guilty program testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-close-add_key$user-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) close(r3) add_key$user(&(0x7f00000000c0), &(0x7f0000000100), &(0x7f0000000140), 0xc9, 0xfffffffffffffffd) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-close-add_key$user-openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) close(r3) add_key$user(&(0x7f00000000c0), &(0x7f0000000100), &(0x7f0000000140), 0xc9, 0xfffffffffffffffd) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: SYZFAIL: failed to recv rpc ignore low priority crash: SYZFAIL: failed to recv rpc testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-close-add_key$user-openat$dm_control-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) close(r3) add_key$user(&(0x7f00000000c0), &(0x7f0000000100), &(0x7f0000000140), 0xc9, 0xfffffffffffffffd) openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-close-add_key$user-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) close(r3) add_key$user(&(0x7f00000000c0), &(0x7f0000000100), &(0x7f0000000140), 0xc9, 0xfffffffffffffffd) ioctl$DM_DEV_CREATE(0xffffffffffffffff, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) close(r3) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-read-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) read(r3, &(0x7f00000011c0)=""/1024, 0x400) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r3) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-close-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) close(r2) close(0xffffffffffffffff) r3 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r3, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(0xffffffffffffffff, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-read-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r2, &(0x7f0000000d80)=""/1024, 0x400) r3 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r3) r4 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r4, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r3, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r5}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) openat(0xffffffffffffff9c, &(0x7f0000000d40)='./sec/ima/ascii_runtime_measurements\x00', 0x0, 0x0) r2 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r2) r3 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r3, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r2, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-close-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) close(r1) r2 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r2) r3 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r3, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r2, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-read-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) read(r1, &(0x7f0000000940)=""/1024, 0x400) r2 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r2) r3 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r3, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r2, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r4}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-setsockopt$packet_int-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) setsockopt$packet_int(r0, 0x107, 0x12, &(0x7f0000000180)=0x8, 0x4) r1 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r1) r2 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r2, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r1, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) openat(0xffffffffffffff9c, &(0x7f0000000900)='./sec/integrity/ima/binary_runtime_measurements\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r1) r2 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r2, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r1, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-close-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) close(r0) r1 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r1) r2 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r2, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r1, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-read-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) read(r0, &(0x7f0000000500)=""/1024, 0x400) r1 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r1) r2 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r2, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r1, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r3}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000140)='./sec/integrity/ima/ascii_runtime_measurements\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mkdirat-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-syz_emit_ethernet-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) syz_emit_ethernet(0x32, &(0x7f00000015c0)=ANY=[@ANYBLOB="0180c2000002aaaaaaaaaa8e080045000024000000020011907800000000e89c3fc2d35d2c6d7badf7a7999c73d3ac1414bb0000000700109078a209000000000000"], 0x0) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: socket$packet(0x11, 0x3, 0x300) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, 0x0, &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, 0x0, 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, 0x0, 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x16, 0x4, &(0x7f0000000400)=@framed={{0x18, 0x2, 0x0, 0x0, 0xfffffffd}, [@call={0x85, 0x0, 0x0, 0xb2}]}, &(0x7f0000000440)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x18, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x35) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, 0x0, 0x0) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, 0x0, 0x0) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr simplifying C reproducer testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD program crashed: KASAN: slab-use-after-free Read in snapshot_ctr testing program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, 0x0, 0x0) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr validation run: crashed=true testing program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, 0x0, 0x0) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr validation run: crashed=true testing program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-close-openat$dm_control-ioctl$DM_DEV_CREATE-bpf$PROG_LOAD-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sec\x00', 0x1ff) mount(0x0, &(0x7f0000000040)='./sec\x00', &(0x7f0000000080)='securityfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000001180)='./sec/ima/binary_runtime_measurements\x00', 0x0, 0x0) close(r0) r1 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r1, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) bpf$PROG_LOAD(0x5, 0x0, 0x0) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000001640)={0x4, 0x0, 0x0, 0x1b0, 0x138, 0x1, 0x0, 0x0, 0x0, 0x0, @by_dev={r2}, [@snapshot={0x0, 0x888, 0x0, 0x0, 'snapshot-merge\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram={'/dev/ram', 0x1}, 0x20, 'p', 0x20, '7', ' 1 discard_zeroes_cow'}}]}) program crashed: KASAN: slab-use-after-free Read in snapshot_ctr validation run: crashed=true reproducing took 1h5m24.717161234s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in snapshot_ctr+0x5cb/0x1340 drivers/md/dm-snap.c:1282 Read of size 8 at addr ffff888014662218 by task syz.0.17/5536 CPU: 0 UID: 0 PID: 5536 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 snapshot_ctr+0x5cb/0x1340 drivers/md/dm-snap.c:1282 dm_table_add_target+0x58d/0xc70 drivers/md/dm-table.c:749 populate_table drivers/md/dm-ioctl.c:1602 [inline] table_load+0x325/0x8a0 drivers/md/dm-ioctl.c:1645 ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline] dm_ctl_ioctl+0x9ec/0xe10 drivers/md/dm-ioctl.c:2243 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc98db9f559 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:00007ffd55a94228 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc98de25fa0 RCX: 00007fc98db9f559 RDX: 0000200000001640 RSI: 00000000c138fd09 RDI: 0000000000000003 RBP: 00007fc98dc36b20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc98de25fac R14: 00007fc98de25fa0 R15: 00007fc98de25fa0 Allocated by task 5536: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:409 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:426 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_node_noprof+0x3d1/0x620 mm/slub.c:5582 _kmalloc_node_noprof include/linux/slab.h:1196 [inline] open_table_device drivers/md/dm.c:733 [inline] dm_get_table_device+0x23e/0x740 drivers/md/dm.c:821 dm_get_device+0x327/0x760 drivers/md/dm-table.c:388 snapshot_ctr+0x2b2/0x1340 drivers/md/dm-snap.c:1267 dm_table_add_target+0x58d/0xc70 drivers/md/dm-table.c:749 populate_table drivers/md/dm-ioctl.c:1602 [inline] table_load+0x325/0x8a0 drivers/md/dm-ioctl.c:1645 ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline] dm_ctl_ioctl+0x9ec/0xe10 drivers/md/dm-ioctl.c:2243 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5536: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:264 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2748 [inline] slab_free mm/slub.c:6509 [inline] kfree+0x1c5/0x650 mm/slub.c:6802 close_table_device drivers/md/dm.c:798 [inline] dm_put_table_device+0x255/0x2a0 drivers/md/dm.c:841 upgrade_mode drivers/md/dm-table.c:326 [inline] dm_get_device+0x56f/0x760 drivers/md/dm-table.c:399 snapshot_ctr+0x471/0x1340 drivers/md/dm-snap.c:1277 dm_table_add_target+0x58d/0xc70 drivers/md/dm-table.c:749 populate_table drivers/md/dm-ioctl.c:1602 [inline] table_load+0x325/0x8a0 drivers/md/dm-ioctl.c:1645 ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline] dm_ctl_ioctl+0x9ec/0xe10 drivers/md/dm-ioctl.c:2243 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888014662200 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 24 bytes inside of freed 96-byte region [ffff888014662200, ffff888014662260) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14662 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff88801c041280 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000200020 00000000f5000000 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 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5472, tgid 5472 (syz-executor), ts 168050917156 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_pages_slowpath+0x3f9/0xec0 mm/page_alloc.c:4884 __alloc_frozen_pages_noprof+0x3f3/0x5a0 mm/page_alloc.c:5449 alloc_slab_page mm/slub.c:3347 [inline] allocate_slab+0x7d/0x620 mm/slub.c:3462 new_slab mm/slub.c:3513 [inline] ___slab_alloc+0x16a/0x960 mm/slub.c:4568 slab_alloc_node mm/slub.c:4987 [inline] __kmalloc_cache_node_noprof+0x1db/0x620 mm/slub.c:5578 _kmalloc_node_noprof include/linux/slab.h:1196 [inline] alloc_node_nr_active kernel/workqueue.c:5079 [inline] __alloc_workqueue+0x746/0x1fe0 kernel/workqueue.c:5974 alloc_workqueue_va kernel/workqueue.c:6033 [inline] alloc_workqueue_noprof+0xe3/0x210 kernel/workqueue.c:6049 ieee80211_register_hw+0x368f/0x4b00 net/mac80211/main.c:1523 mac80211_hwsim_new_radio+0x3258/0x56b0 drivers/net/wireless/virtual/mac80211_hwsim_main.c:6143 hwsim_new_radio_nl+0xd8b/0xf90 drivers/net/wireless/virtual/mac80211_hwsim_main.c:6966 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2579 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 page last free pid 5532 tgid 5532 ts 167966643301 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __slab_free+0x274/0x2c0 mm/slub.c:5823 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:361 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010 anon_vma_chain_alloc mm/rmap.c:142 [inline] __anon_vma_prepare+0xc3/0x4d0 mm/rmap.c:194 __vmf_anon_prepare mm/memory.c:3961 [inline] vmf_anon_prepare mm/internal.h:569 [inline] do_anonymous_page mm/memory.c:5478 [inline] do_pte_missing+0x2f18/0x34b0 mm/memory.c:4698 handle_pte_fault mm/memory.c:6558 [inline] __handle_mm_fault mm/memory.c:6707 [inline] handle_mm_fault+0x1a53/0x3750 mm/memory.c:6876 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 Memory state around the buggy address: ffff888014662100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888014662180: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc >ffff888014662200: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888014662280: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc ffff888014662300: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in snapshot_ctr+0x5cb/0x1340 drivers/md/dm-snap.c:1282 Read of size 8 at addr ffff888014662218 by task syz.0.17/5536 CPU: 0 UID: 0 PID: 5536 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 snapshot_ctr+0x5cb/0x1340 drivers/md/dm-snap.c:1282 dm_table_add_target+0x58d/0xc70 drivers/md/dm-table.c:749 populate_table drivers/md/dm-ioctl.c:1602 [inline] table_load+0x325/0x8a0 drivers/md/dm-ioctl.c:1645 ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline] dm_ctl_ioctl+0x9ec/0xe10 drivers/md/dm-ioctl.c:2243 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc98db9f559 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:00007ffd55a94228 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc98de25fa0 RCX: 00007fc98db9f559 RDX: 0000200000001640 RSI: 00000000c138fd09 RDI: 0000000000000003 RBP: 00007fc98dc36b20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc98de25fac R14: 00007fc98de25fa0 R15: 00007fc98de25fa0 Allocated by task 5536: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:409 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:426 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_node_noprof+0x3d1/0x620 mm/slub.c:5582 _kmalloc_node_noprof include/linux/slab.h:1196 [inline] open_table_device drivers/md/dm.c:733 [inline] dm_get_table_device+0x23e/0x740 drivers/md/dm.c:821 dm_get_device+0x327/0x760 drivers/md/dm-table.c:388 snapshot_ctr+0x2b2/0x1340 drivers/md/dm-snap.c:1267 dm_table_add_target+0x58d/0xc70 drivers/md/dm-table.c:749 populate_table drivers/md/dm-ioctl.c:1602 [inline] table_load+0x325/0x8a0 drivers/md/dm-ioctl.c:1645 ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline] dm_ctl_ioctl+0x9ec/0xe10 drivers/md/dm-ioctl.c:2243 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5536: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:264 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2748 [inline] slab_free mm/slub.c:6509 [inline] kfree+0x1c5/0x650 mm/slub.c:6802 close_table_device drivers/md/dm.c:798 [inline] dm_put_table_device+0x255/0x2a0 drivers/md/dm.c:841 upgrade_mode drivers/md/dm-table.c:326 [inline] dm_get_device+0x56f/0x760 drivers/md/dm-table.c:399 snapshot_ctr+0x471/0x1340 drivers/md/dm-snap.c:1277 dm_table_add_target+0x58d/0xc70 drivers/md/dm-table.c:749 populate_table drivers/md/dm-ioctl.c:1602 [inline] table_load+0x325/0x8a0 drivers/md/dm-ioctl.c:1645 ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline] dm_ctl_ioctl+0x9ec/0xe10 drivers/md/dm-ioctl.c:2243 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888014662200 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 24 bytes inside of freed 96-byte region [ffff888014662200, ffff888014662260) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14662 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff88801c041280 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000200020 00000000f5000000 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 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 5472, tgid 5472 (syz-executor), ts 168050917156 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_pages_slowpath+0x3f9/0xec0 mm/page_alloc.c:4884 __alloc_frozen_pages_noprof+0x3f3/0x5a0 mm/page_alloc.c:5449 alloc_slab_page mm/slub.c:3347 [inline] allocate_slab+0x7d/0x620 mm/slub.c:3462 new_slab mm/slub.c:3513 [inline] ___slab_alloc+0x16a/0x960 mm/slub.c:4568 slab_alloc_node mm/slub.c:4987 [inline] __kmalloc_cache_node_noprof+0x1db/0x620 mm/slub.c:5578 _kmalloc_node_noprof include/linux/slab.h:1196 [inline] alloc_node_nr_active kernel/workqueue.c:5079 [inline] __alloc_workqueue+0x746/0x1fe0 kernel/workqueue.c:5974 alloc_workqueue_va kernel/workqueue.c:6033 [inline] alloc_workqueue_noprof+0xe3/0x210 kernel/workqueue.c:6049 ieee80211_register_hw+0x368f/0x4b00 net/mac80211/main.c:1523 mac80211_hwsim_new_radio+0x3258/0x56b0 drivers/net/wireless/virtual/mac80211_hwsim_main.c:6143 hwsim_new_radio_nl+0xd8b/0xf90 drivers/net/wireless/virtual/mac80211_hwsim_main.c:6966 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2579 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 page last free pid 5532 tgid 5532 ts 167966643301 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962 __slab_free+0x274/0x2c0 mm/slub.c:5823 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:361 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010 anon_vma_chain_alloc mm/rmap.c:142 [inline] __anon_vma_prepare+0xc3/0x4d0 mm/rmap.c:194 __vmf_anon_prepare mm/memory.c:3961 [inline] vmf_anon_prepare mm/internal.h:569 [inline] do_anonymous_page mm/memory.c:5478 [inline] do_pte_missing+0x2f18/0x34b0 mm/memory.c:4698 handle_pte_fault mm/memory.c:6558 [inline] __handle_mm_fault mm/memory.c:6707 [inline] handle_mm_fault+0x1a53/0x3750 mm/memory.c:6876 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 Memory state around the buggy address: ffff888014662100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888014662180: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc >ffff888014662200: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888014662280: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc ffff888014662300: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc 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