Extracting prog: 4m59.651204903s
Minimizing prog: 37m43.223147774s
Simplifying prog options: 16m17.822590673s
Extracting C: 5m48.419346299s
Simplifying C: 0s
extracting reproducer from 51 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-sendfile-openat$nullb-ioctl$BLKZEROOUT-sync_file_range
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x202, 0x0)
sendfile(r0, r0, 0x0, 0x8001)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
ioctl$BLKZEROOUT(r1, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
sync_file_range(r0, 0x9, 0x6, 0x2)
program crashed: INFO: task hung in blkdev_common_ioctl
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-sendfile-openat$nullb-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x202, 0x0)
sendfile(r0, r0, 0x0, 0x8001)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
ioctl$BLKZEROOUT(r1, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
program crashed: INFO: task hung in blkdev_common_ioctl
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-sendfile-openat$nullb
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x202, 0x0)
sendfile(r0, r0, 0x0, 0x8001)
openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-sendfile-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x202, 0x0)
sendfile(r0, r0, 0x0, 0x8001)
ioctl$BLKZEROOUT(0xffffffffffffffff, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-openat$nullb-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x202, 0x0)
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
ioctl$BLKZEROOUT(r0, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
program crashed: INFO: task hung in blkdev_common_ioctl
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
ioctl$BLKZEROOUT(r0, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
program crashed: INFO: task hung in blkdev_common_ioctl
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, 0x0, 0x42, 0x0)
ioctl$BLKZEROOUT(r0, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
ioctl$BLKZEROOUT(r0, 0x127f, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-ioctl$BLKZEROOUT
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
ioctl$BLKZEROOUT(r0, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
program crashed: INFO: task hung in blkdev_common_ioctl
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-ioctl$BLKZEROOUT
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-ioctl$BLKZEROOUT
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0)
ioctl$BLKZEROOUT(r0, 0x127f, &(0x7f0000000080)={0xa00, 0x1000000a00})
program did not crash
reproducing took 1h4m13.24799884s
repro crashed as (corrupted=false):
INFO: task syz.4.20:4352 blocked for more than 143 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.20 state:D stack:27168 pid: 4352 ppid: 4292 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
rwsem_down_write_slowpath+0xf0c/0x16a0 kernel/locking/rwsem.c:1165
filemap_invalidate_lock include/linux/fs.h:834 [inline]
blk_ioctl_zeroout block/ioctl.c:183 [inline]
blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
blkdev_ioctl+0x286/0x6b0 block/ioctl.c:598
block_ioctl+0xb1/0xf0 block/fops.c:493
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fde57e93d29
RSP: 002b:00007ffea9effbd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fde58083fa0 RCX: 00007fde57e93d29
RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000003
RBP: 00007fde57f0fb08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fde58083fa0 R14: 00007fde58083fa0 R15: 0000000000000313
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/155:
#0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90001eb7d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251
5 locks held by kworker/u4:4/1236:
2 locks held by getty/3926:
#0: ffff88802c226098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by kworker/0:4/4206:
#0: ffff88802b4a2138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002ecfd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113
2 locks held by kworker/u4:5/4211:
#0: ffff8880b8e3a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
#1: ffff8880b8e27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53d/0x810 kernel/sched/psi.c:891
3 locks held by kworker/1:5/4266:
#0: ffff88802b4a2138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002f9fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113
3 locks held by kworker/0:6/4267:
#0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002fafd20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:74
3 locks held by kworker/u4:7/4345:
1 lock held by syz.3.19/4351:
1 lock held by syz.4.20/4352:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.21/4417:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.24/4459:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.22/4460:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.23/4461:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.25/4462:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.26/4560:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.28/4607:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.27/4608:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.30/4610:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.29/4611:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.31/4631:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.32/4716:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.33/4718:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.35/4725:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.34/4726:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.36/4727:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.37/4769:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.38/4777:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.40/4807:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.39/4809:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.41/4810:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz-executor/4855:
#0: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644
1 lock held by syz.6.42/4857:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.43/4858:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4763 Comm: syz-executor Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1065 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1368 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1505 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1534 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1555 [inline]
RIP: 0010:unmap_page_range+0xc12/0x2630 mm/memory.c:1576
Code: 00 00 e8 61 f1 c7 ff e9 0e 05 00 00 e8 57 f1 c7 ff 43 80 3c 2e 00 48 8d 9c 24 a0 01 00 00 74 0a 48 8b 7c 24 10 e8 5e cd 11 00 <48> 8b 44 24 68 48 8b 00 48 89 44 24 40 48 89 df 48 c1 eb 03 42 80
RSP: 0018:ffffc90003eff420 EFLAGS: 00000246
RAX: ffffffff81b89389 RBX: ffffc90003eff5c0 RCX: ffff88807eaa9dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003eff650 R08: ffffffff81b892b2 R09: ffffed100fd553b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 00007f3495cb2000
R13: dffffc0000000000 R14: 1ffff1100a28dab2 R15: 1ffff920007dff00
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc6a259cd60 CR3: 000000002787e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unmap_vmas+0x1f8/0x390 mm/memory.c:1653
exit_mmap+0x3b6/0x620 mm/mmap.c:3204
__mmput+0x112/0x3b0 kernel/fork.c:1127
exit_mm+0x688/0x7f0 kernel/exit.c:550
do_exit+0x626/0x2480 kernel/exit.c:861
do_group_exit+0x144/0x310 kernel/exit.c:996
get_signal+0xc66/0x14e0 kernel/signal.c:2900
arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:154 [inline]
exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3494f86f97
Code: Unable to access opcode bytes at RIP 0x7f3494f86f6d.
RSP: 002b:00007ffe2c17c4e0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000000000000003 RCX: 00007f3494f86f97
RDX: 0000000040000000 RSI: 00007ffe2c17c53c RDI: 00000000ffffffff
RBP: 00007ffe2c17c53c R08: 0000000000000000 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000555578138590 R14: 00007ffe2c17c590 R15: 0000000000000000
final repro crashed as (corrupted=false):
INFO: task syz.4.20:4352 blocked for more than 143 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.20 state:D stack:27168 pid: 4352 ppid: 4292 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
rwsem_down_write_slowpath+0xf0c/0x16a0 kernel/locking/rwsem.c:1165
filemap_invalidate_lock include/linux/fs.h:834 [inline]
blk_ioctl_zeroout block/ioctl.c:183 [inline]
blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
blkdev_ioctl+0x286/0x6b0 block/ioctl.c:598
block_ioctl+0xb1/0xf0 block/fops.c:493
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fde57e93d29
RSP: 002b:00007ffea9effbd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fde58083fa0 RCX: 00007fde57e93d29
RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000003
RBP: 00007fde57f0fb08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fde58083fa0 R14: 00007fde58083fa0 R15: 0000000000000313
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/155:
#0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90001eb7d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251
5 locks held by kworker/u4:4/1236:
2 locks held by getty/3926:
#0: ffff88802c226098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by kworker/0:4/4206:
#0: ffff88802b4a2138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002ecfd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113
2 locks held by kworker/u4:5/4211:
#0: ffff8880b8e3a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
#1: ffff8880b8e27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53d/0x810 kernel/sched/psi.c:891
3 locks held by kworker/1:5/4266:
#0: ffff88802b4a2138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002f9fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113
3 locks held by kworker/0:6/4267:
#0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002fafd20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:74
3 locks held by kworker/u4:7/4345:
1 lock held by syz.3.19/4351:
1 lock held by syz.4.20/4352:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.21/4417:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.24/4459:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.22/4460:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.23/4461:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.25/4462:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.26/4560:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.28/4607:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.27/4608:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.30/4610:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.29/4611:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.31/4631:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.32/4716:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.33/4718:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.35/4725:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.34/4726:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.36/4727:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.37/4769:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.38/4777:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.40/4807:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.39/4809:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.41/4810:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz-executor/4855:
#0: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644
1 lock held by syz.6.42/4857:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.43/4858:
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff8880178a9538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4763 Comm: syz-executor Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1065 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1368 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1505 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1534 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1555 [inline]
RIP: 0010:unmap_page_range+0xc12/0x2630 mm/memory.c:1576
Code: 00 00 e8 61 f1 c7 ff e9 0e 05 00 00 e8 57 f1 c7 ff 43 80 3c 2e 00 48 8d 9c 24 a0 01 00 00 74 0a 48 8b 7c 24 10 e8 5e cd 11 00 <48> 8b 44 24 68 48 8b 00 48 89 44 24 40 48 89 df 48 c1 eb 03 42 80
RSP: 0018:ffffc90003eff420 EFLAGS: 00000246
RAX: ffffffff81b89389 RBX: ffffc90003eff5c0 RCX: ffff88807eaa9dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003eff650 R08: ffffffff81b892b2 R09: ffffed100fd553b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 00007f3495cb2000
R13: dffffc0000000000 R14: 1ffff1100a28dab2 R15: 1ffff920007dff00
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc6a259cd60 CR3: 000000002787e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unmap_vmas+0x1f8/0x390 mm/memory.c:1653
exit_mmap+0x3b6/0x620 mm/mmap.c:3204
__mmput+0x112/0x3b0 kernel/fork.c:1127
exit_mm+0x688/0x7f0 kernel/exit.c:550
do_exit+0x626/0x2480 kernel/exit.c:861
do_group_exit+0x144/0x310 kernel/exit.c:996
get_signal+0xc66/0x14e0 kernel/signal.c:2900
arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:154 [inline]
exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3494f86f97
Code: Unable to access opcode bytes at RIP 0x7f3494f86f6d.
RSP: 002b:00007ffe2c17c4e0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000000000000003 RCX: 00007f3494f86f97
RDX: 0000000040000000 RSI: 00007ffe2c17c53c RDI: 00000000ffffffff
RBP: 00007ffe2c17c53c R08: 0000000000000000 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000555578138590 R14: 00007ffe2c17c590 R15: 0000000000000000