Extracting prog: 4m10.209947461s
Minimizing prog: 34m32.420777684s
Simplifying prog options: 17m25.016247086s
Extracting C: 5m55.390069905s
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 1h2m24.782323652s
repro crashed as (corrupted=false):
INFO: task syz.4.20:4344 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:26720 pid: 4344 ppid: 4276 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: 0033:0x7f9d981b3d29
RSP: 002b:00007ffeacbbdc18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9d983a3fa0 RCX: 00007f9d981b3d29
RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000003
RBP: 00007f9d9822fb08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9d983a3fa0 R14: 00007f9d983a3fa0 R15: 0000000000000313
Showing all locks held in the system:
3 locks held by kworker/1:0/21:
#0: ffff88814c2f7938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90000db7d20 ((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
1 lock held by khungtaskd/27:
#0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:1/144:
3 locks held by kworker/0:2/1324:
#0:
ffff88814c2f7938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc900053afd20 ((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/u4:5/3080:
#0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc9000d337d20 ((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
2 locks held by getty/3927:
#0: ffff88814c741098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900025ae2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
2 locks held by kworker/1:3/4218:
#0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc900030dfd20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
1 lock held by syz.2.18/4343:
1 lock held by syz.4.20/4344:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.21/4415:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.22/4420:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.23/4427:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.24/4448:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.25/4449:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.27/4823:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.26/4829:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.28/4874:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.29/4890:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.30/4891:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.32/4950:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.31/4951:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.33/4970:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.35/4992:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.34/4993:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.37/5027:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.36/5031:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.38/5047:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.39/5070:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.40/5071:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.41/5119:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.42/5120:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.43/5145:
#0: ffff888017887338 (mapping.invalidate_lock#2
){++++}-{3:3}
, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.45/5170:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.44/5172:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
2 locks held by syz-executor/5175:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x28/0x540 net/wireless/nl80211.c:14964
1 lock held by syz-executor/5176:
#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-executor/5195:
#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
2 locks held by dhcpcd/5211:
#0: ffff8880503ce120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1678 [inline]
#0: ffff8880503ce120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xd50 net/packet/af_packet.c:3227
#1: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#1: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:845
=============================================
NMI backtrace for cpu 1
CPU: 1 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4343 Comm: syz.2.18 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__lock_acquire+0x472/0x1ff0 kernel/locking/lockdep.c:4960
Code: 13 00 00 44 8b b4 24 d8 00 00 00 48 8b 44 24 20 44 89 38 49 89 c7 48 8b 04 24 48 8d 5c e8 24 48 89 d8 48 c1 e8 03 0f b6 04 10 <84> c0 4c 8b 6c 24 30 0f 85 29 13 00 00 44 89 33 44 89 e3 41 c1 ec
RSP: 0018:ffffc9000422f1e0 EFLAGS: 00000803
RAX: 0000000000000000 RBX: ffff88802acc647c RCX: 0000000000080000
RDX: dffffc0000000000 RSI: 0000000000020045 RDI: ffff88802acc6414
RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000045
R13: 0000000000000005 R14: 0000000000000000 R15: ffff88802acc6478
FS: 0000555556b24500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563360fab680 CR3: 000000005bebb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
seqcount_lockdep_reader_access+0x13b/0x220 include/linux/seqlock.h:103
timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
ktime_get+0x7f/0x270 kernel/time/timekeeping.c:831
ktime_get_ns include/linux/timekeeping.h:154 [inline]
bio_issue_init include/linux/blk_types.h:207 [inline]
blkcg_bio_issue_init include/linux/blk-cgroup.h:532 [inline]
submit_bio_checks+0xd7e/0x1940 block/blk-core.c:884
__submit_bio+0x5a1/0x850 block/blk-core.c:911
__submit_bio_noacct_mq block/blk-core.c:997 [inline]
submit_bio_noacct+0xa44/0xb30 block/blk-core.c:1027
submit_bio+0x2dd/0x560 block/blk-core.c:1089
blk_next_bio block/blk-lib.c:19 [inline]
__blkdev_issue_zero_pages+0x155/0x3b0 block/blk-lib.c:319
blkdev_issue_zeroout+0x2c5/0x470 block/blk-lib.c:413
blk_ioctl_zeroout block/ioctl.c:188 [inline]
blkdev_common_ioctl+0x1ce5/0x2080 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: 0033:0x7fbe9b21fd29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc5689af48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbe9b40ffa0 RCX: 00007fbe9b21fd29
RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000003
RBP: 00007fbe9b29bb08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe9b40ffa0 R14: 00007fbe9b40ffa0 R15: 0000000000000313
final repro crashed as (corrupted=false):
INFO: task syz.4.20:4344 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:26720 pid: 4344 ppid: 4276 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: 0033:0x7f9d981b3d29
RSP: 002b:00007ffeacbbdc18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9d983a3fa0 RCX: 00007f9d981b3d29
RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000003
RBP: 00007f9d9822fb08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9d983a3fa0 R14: 00007f9d983a3fa0 R15: 0000000000000313
Showing all locks held in the system:
3 locks held by kworker/1:0/21:
#0: ffff88814c2f7938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90000db7d20 ((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
1 lock held by khungtaskd/27:
#0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:1/144:
3 locks held by kworker/0:2/1324:
#0:
ffff88814c2f7938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc900053afd20 ((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/u4:5/3080:
#0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc9000d337d20 ((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
2 locks held by getty/3927:
#0: ffff88814c741098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900025ae2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
2 locks held by kworker/1:3/4218:
#0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc900030dfd20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
1 lock held by syz.2.18/4343:
1 lock held by syz.4.20/4344:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.21/4415:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.22/4420:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.23/4427:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.24/4448:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.25/4449:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.27/4823:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.26/4829:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.28/4874:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.29/4890:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.30/4891:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.32/4950:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.31/4951:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.33/4970:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.35/4992:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.34/4993:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.3.37/5027:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.0.36/5031:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.1.38/5047:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.2.39/5070:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.4.40/5071:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.5.41/5119:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.6.42/5120:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.7.43/5145:
#0: ffff888017887338 (mapping.invalidate_lock#2
){++++}-{3:3}
, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.9.45/5170:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
1 lock held by syz.8.44/5172:
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:834 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline]
#0: ffff888017887338 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1533/0x2080 block/ioctl.c:487
2 locks held by syz-executor/5175:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x28/0x540 net/wireless/nl80211.c:14964
1 lock held by syz-executor/5176:
#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-executor/5195:
#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
2 locks held by dhcpcd/5211:
#0: ffff8880503ce120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1678 [inline]
#0: ffff8880503ce120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xd50 net/packet/af_packet.c:3227
#1: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#1: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:845
=============================================
NMI backtrace for cpu 1
CPU: 1 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4343 Comm: syz.2.18 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__lock_acquire+0x472/0x1ff0 kernel/locking/lockdep.c:4960
Code: 13 00 00 44 8b b4 24 d8 00 00 00 48 8b 44 24 20 44 89 38 49 89 c7 48 8b 04 24 48 8d 5c e8 24 48 89 d8 48 c1 e8 03 0f b6 04 10 <84> c0 4c 8b 6c 24 30 0f 85 29 13 00 00 44 89 33 44 89 e3 41 c1 ec
RSP: 0018:ffffc9000422f1e0 EFLAGS: 00000803
RAX: 0000000000000000 RBX: ffff88802acc647c RCX: 0000000000080000
RDX: dffffc0000000000 RSI: 0000000000020045 RDI: ffff88802acc6414
RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000045
R13: 0000000000000005 R14: 0000000000000000 R15: ffff88802acc6478
FS: 0000555556b24500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563360fab680 CR3: 000000005bebb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
seqcount_lockdep_reader_access+0x13b/0x220 include/linux/seqlock.h:103
timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
ktime_get+0x7f/0x270 kernel/time/timekeeping.c:831
ktime_get_ns include/linux/timekeeping.h:154 [inline]
bio_issue_init include/linux/blk_types.h:207 [inline]
blkcg_bio_issue_init include/linux/blk-cgroup.h:532 [inline]
submit_bio_checks+0xd7e/0x1940 block/blk-core.c:884
__submit_bio+0x5a1/0x850 block/blk-core.c:911
__submit_bio_noacct_mq block/blk-core.c:997 [inline]
submit_bio_noacct+0xa44/0xb30 block/blk-core.c:1027
submit_bio+0x2dd/0x560 block/blk-core.c:1089
blk_next_bio block/blk-lib.c:19 [inline]
__blkdev_issue_zero_pages+0x155/0x3b0 block/blk-lib.c:319
blkdev_issue_zeroout+0x2c5/0x470 block/blk-lib.c:413
blk_ioctl_zeroout block/ioctl.c:188 [inline]
blkdev_common_ioctl+0x1ce5/0x2080 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: 0033:0x7fbe9b21fd29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc5689af48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbe9b40ffa0 RCX: 00007fbe9b21fd29
RDX: 0000000020000080 RSI: 000000000000127f RDI: 0000000000000003
RBP: 00007fbe9b29bb08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbe9b40ffa0 R14: 00007fbe9b40ffa0 R15: 0000000000000313