Extracting prog: 2m18.805738946s Minimizing prog: 12m35.033265033s Simplifying prog options: 0s Extracting C: 1m4.326307984s Simplifying C: 5m55.129708158s 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}}): openat$dm_control-getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD-ioctl$F2FS_IOC_DEFRAGMENT detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS(0xffffffffffffffff, 0x84, 0x7a, 0x0, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 1 discard_zeroes_cow'}}]}) ioctl$F2FS_IOC_DEFRAGMENT(r0, 0xc010f508, &(0x7f0000000000)={0x0, 0x54}) 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}}): openat$dm_control-getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD-ioctl$F2FS_IOC_DEFRAGMENT detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS(0xffffffffffffffff, 0x84, 0x7a, 0x0, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 1 discard_zeroes_cow'}}]}) ioctl$F2FS_IOC_DEFRAGMENT(r0, 0xc010f508, &(0x7f0000000000)={0x0, 0x54}) program crashed: divide error in blk_stack_limits single: successfully extracted reproducer found reproducer with 5 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}}): openat$dm_control-getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS(0xffffffffffffffff, 0x84, 0x7a, 0x0, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 1 discard_zeroes_cow'}}]}) program crashed: divide error in blk_stack_limits 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}}): openat$dm_control-getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS-ioctl$DM_DEV_CREATE detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS(0xffffffffffffffff, 0x84, 0x7a, 0x0, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) 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}}): openat$dm_control-getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF_FLAGS(0xffffffffffffffff, 0x84, 0x7a, 0x0, 0x0) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 1 discard_zeroes_cow'}}]}) program crashed: divide error in blk_stack_limits 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}}): ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: ioctl$DM_DEV_CREATE(0xffffffffffffffff, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(0xffffffffffffffff, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r0}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, 0x0, 0x883, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, 0x0) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, 0x0) program crashed: SYZFAIL: failed to recv rpc ignore low priority crash: SYZFAIL: failed to recv rpc 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits simplifying C reproducer testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD program crashed: divide error in blk_stack_limits 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 1 discard_zeroes_cow'}}]}) program crashed: divide error in blk_stack_limits 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 1 discard_zeroes_cow'}}]}) program crashed: divide error in blk_stack_limits 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}}): openat$dm_control-ioctl$DM_DEV_CREATE-ioctl$DM_TABLE_LOAD detailed listing: executing program 0: r0 = openat$dm_control(0xffffffffffffff9c, &(0x7f00000001c0), 0x883, 0x0) ioctl$DM_DEV_CREATE(r0, 0xc138fd03, &(0x7f0000000200)={0x4, 0x0, 0x0, 0x138, 0x138, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, {'syz', 0x0, '1\x00'}}}) ioctl$DM_TABLE_LOAD(r0, 0xc138fd09, &(0x7f0000000640)={0x4, 0x0, 0x0, 0x1a0, 0x138, 0x1, 0x0, 0x9000, 0x0, 0x0, @by_dev={r1}, [@snapshot={0x0, 0x400, 0x0, 0x68, 'snapshot\x00', {@ram={'/dev/ram', 0x1}, 0x20, @ram_num={'1:', 0x0}, 0x20, 'P', 0x20, '32', ' 1 discard_zeroes_cow'}}]}) program crashed: divide error in blk_stack_limits validation run: crashed=true reproducing took 26m11.492508538s repro crashed as (corrupted=false): Oops: divide error: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5481 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 RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:645 [inline] RIP: 0010:blk_stack_limits+0x1105/0x2d00 block/blk-settings.c:916 Code: 68 48 4c 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 7c 18 00 00 45 8b 65 00 c7 44 24 10 00 00 00 00 eb 5f 48 8b 44 24 48 31 d2 <41> f7 f5 44 01 e9 29 d1 89 c8 31 d2 41 f7 f5 48 8b 44 24 08 4c 8d RSP: 0018:ffffc90001c0f4f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc90001c0f850 R08: ffffc90001c0f7e0 R09: 1ffffffff37b4dc0 R10: dffffc0000000000 R11: ffffffff88a11a10 R12: 00000000ffffffff R13: 0000000000000000 R14: 1ffff92000381f0a R15: ffffc90001c0f854 FS: 0000555570175500(0000) GS:ffff88808b0b0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa930071220 CR3: 000000003cf9f000 CR4: 0000000000352ef0 Call Trace: dm_calculate_queue_limits+0x70c/0x1510 drivers/md/dm-table.c:1823 dm_setup_md_queue+0x199/0x4f0 drivers/md/dm.c:2618 table_load+0x4fd/0x8a0 drivers/md/dm-ioctl.c:1661 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: 0033:0x7fa93019f559 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:00007ffce7b56638 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa930425fa0 RCX: 00007fa93019f559 RDX: 0000200000000640 RSI: 00000000c138fd09 RDI: 0000000000000003 RBP: 00007fa930236b20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa930425fac R14: 00007fa930425fa0 R15: 00007fa930425fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:645 [inline] RIP: 0010:blk_stack_limits+0x1105/0x2d00 block/blk-settings.c:916 Code: 68 48 4c 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 7c 18 00 00 45 8b 65 00 c7 44 24 10 00 00 00 00 eb 5f 48 8b 44 24 48 31 d2 <41> f7 f5 44 01 e9 29 d1 89 c8 31 d2 41 f7 f5 48 8b 44 24 08 4c 8d RSP: 0018:ffffc90001c0f4f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc90001c0f850 R08: ffffc90001c0f7e0 R09: 1ffffffff37b4dc0 R10: dffffc0000000000 R11: ffffffff88a11a10 R12: 00000000ffffffff R13: 0000000000000000 R14: 1ffff92000381f0a R15: ffffc90001c0f854 FS: 0000555570175500(0000) GS:ffff88808b0b0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa930071220 CR3: 000000003cf9f000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: 68 48 4c 89 e8 push $0xffffffffe8894c48 5: 48 c1 e8 03 shr $0x3,%rax 9: 0f b6 04 18 movzbl (%rax,%rbx,1),%eax d: 84 c0 test %al,%al f: 0f 85 7c 18 00 00 jne 0x1891 15: 45 8b 65 00 mov 0x0(%r13),%r12d 19: c7 44 24 10 00 00 00 movl $0x0,0x10(%rsp) 20: 00 21: eb 5f jmp 0x82 23: 48 8b 44 24 48 mov 0x48(%rsp),%rax 28: 31 d2 xor %edx,%edx * 2a: 41 f7 f5 div %r13d <-- trapping instruction 2d: 44 01 e9 add %r13d,%ecx 30: 29 d1 sub %edx,%ecx 32: 89 c8 mov %ecx,%eax 34: 31 d2 xor %edx,%edx 36: 41 f7 f5 div %r13d 39: 48 8b 44 24 08 mov 0x8(%rsp),%rax 3e: 4c rex.WR 3f: 8d .byte 0x8d final repro crashed as (corrupted=false): Oops: divide error: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5481 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 RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:645 [inline] RIP: 0010:blk_stack_limits+0x1105/0x2d00 block/blk-settings.c:916 Code: 68 48 4c 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 7c 18 00 00 45 8b 65 00 c7 44 24 10 00 00 00 00 eb 5f 48 8b 44 24 48 31 d2 <41> f7 f5 44 01 e9 29 d1 89 c8 31 d2 41 f7 f5 48 8b 44 24 08 4c 8d RSP: 0018:ffffc90001c0f4f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc90001c0f850 R08: ffffc90001c0f7e0 R09: 1ffffffff37b4dc0 R10: dffffc0000000000 R11: ffffffff88a11a10 R12: 00000000ffffffff R13: 0000000000000000 R14: 1ffff92000381f0a R15: ffffc90001c0f854 FS: 0000555570175500(0000) GS:ffff88808b0b0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa930071220 CR3: 000000003cf9f000 CR4: 0000000000352ef0 Call Trace: dm_calculate_queue_limits+0x70c/0x1510 drivers/md/dm-table.c:1823 dm_setup_md_queue+0x199/0x4f0 drivers/md/dm.c:2618 table_load+0x4fd/0x8a0 drivers/md/dm-ioctl.c:1661 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: 0033:0x7fa93019f559 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:00007ffce7b56638 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa930425fa0 RCX: 00007fa93019f559 RDX: 0000200000000640 RSI: 00000000c138fd09 RDI: 0000000000000003 RBP: 00007fa930236b20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa930425fac R14: 00007fa930425fa0 R15: 00007fa930425fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:queue_limit_discard_alignment block/blk-settings.c:645 [inline] RIP: 0010:blk_stack_limits+0x1105/0x2d00 block/blk-settings.c:916 Code: 68 48 4c 89 e8 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 7c 18 00 00 45 8b 65 00 c7 44 24 10 00 00 00 00 eb 5f 48 8b 44 24 48 31 d2 <41> f7 f5 44 01 e9 29 d1 89 c8 31 d2 41 f7 f5 48 8b 44 24 08 4c 8d RSP: 0018:ffffc90001c0f4f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc90001c0f850 R08: ffffc90001c0f7e0 R09: 1ffffffff37b4dc0 R10: dffffc0000000000 R11: ffffffff88a11a10 R12: 00000000ffffffff R13: 0000000000000000 R14: 1ffff92000381f0a R15: ffffc90001c0f854 FS: 0000555570175500(0000) GS:ffff88808b0b0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa930071220 CR3: 000000003cf9f000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: 68 48 4c 89 e8 push $0xffffffffe8894c48 5: 48 c1 e8 03 shr $0x3,%rax 9: 0f b6 04 18 movzbl (%rax,%rbx,1),%eax d: 84 c0 test %al,%al f: 0f 85 7c 18 00 00 jne 0x1891 15: 45 8b 65 00 mov 0x0(%r13),%r12d 19: c7 44 24 10 00 00 00 movl $0x0,0x10(%rsp) 20: 00 21: eb 5f jmp 0x82 23: 48 8b 44 24 48 mov 0x48(%rsp),%rax 28: 31 d2 xor %edx,%edx * 2a: 41 f7 f5 div %r13d <-- trapping instruction 2d: 44 01 e9 add %r13d,%ecx 30: 29 d1 sub %edx,%ecx 32: 89 c8 mov %ecx,%eax 34: 31 d2 xor %edx,%edx 36: 41 f7 f5 div %r13d 39: 48 8b 44 24 08 mov 0x8(%rsp),%rax 3e: 4c rex.WR 3f: 8d .byte 0x8d