Extracting prog: 5m41.197859132s
Minimizing prog: 56.17µs
Simplifying prog options: 0s
Extracting C: 3m11.946370736s
Simplifying C: 25m18.287681482s
extracting reproducer from 1 programs
testing a last program of every proc
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000240)='ext4\x00', &(0x7f0000000280)='./mnt\x00', 0x800003, &(0x7f0000000000)={[{@max_batch_time={'max_batch_time', 0x3d, 0x5}}, {@errors_continue}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x800000}}]}, 0x41, 0x25f, &(0x7f00000002c0)="$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")
program crashed: INFO: task hung in block_read_full_folio
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
simplifying 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
testing compiled C program (duration=6m0s, {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}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
testing compiled C program (duration=6m0s, {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}}): syz_mount_image$ext4
VM was preempted during C execution: failed to run command in VM: instance is preempted, retrying
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
testing compiled C program (duration=6m0s, {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}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
program crashed: INFO: task hung in block_read_full_folio
testing program (duration=6m0s, {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}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000240)='ext4\x00', &(0x7f0000000280)='./mnt\x00', 0x800003, &(0x7f0000000000)={[{@max_batch_time={'max_batch_time', 0x3d, 0x5}}, {@errors_continue}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x800000}}]}, 0x41, 0x25f, &(0x7f00000002c0)="$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")
program crashed: INFO: task hung in block_read_full_folio
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000240)='ext4\x00', &(0x7f0000000280)='./mnt\x00', 0x800003, &(0x7f0000000000)={[{@max_batch_time={'max_batch_time', 0x3d, 0x5}}, {@errors_continue}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x800000}}]}, 0x41, 0x25f, &(0x7f00000002c0)="$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")
VM was preempted during syz execution: failed to run command in VM: instance is preempted, retrying
program crashed: INFO: task hung in block_read_full_folio
validation run: crashed=true
testing program (duration=6m0s, {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}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000240)='ext4\x00', &(0x7f0000000280)='./mnt\x00', 0x800003, &(0x7f0000000000)={[{@max_batch_time={'max_batch_time', 0x3d, 0x5}}, {@errors_continue}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x800000}}]}, 0x41, 0x25f, &(0x7f00000002c0)="$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")
program crashed: INFO: task hung in block_read_full_folio
validation run: crashed=true
reproducing took 47m59.015128864s
repro crashed as (corrupted=false):
INFO: task udevd:5856 blocked in I/O wait for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25672 pid:5856 tgid:5856 ppid:4953 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
__schedule_loop kernel/sched/core.c:7311 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7326
io_schedule+0x80/0xe0 kernel/sched/core.c:8154
bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:250
__wait_on_bit_lock+0xe0/0x4a0 kernel/sched/wait_bit.c:93
out_of_line_wait_on_bit_lock+0x13b/0x190 kernel/sched/wait_bit.c:120
wait_on_bit_lock_io include/linux/wait_bit.h:221 [inline]
__lock_buffer fs/buffer.c:68 [inline]
lock_buffer include/linux/buffer_head.h:434 [inline]
block_read_full_folio+0x38f/0x810 fs/buffer.c:2417
filemap_read_folio+0x12c/0x3a0 mm/filemap.c:2516
filemap_update_page mm/filemap.c:2603 [inline]
filemap_get_pages+0x16f9/0x1e80 mm/filemap.c:2733
filemap_read+0x429/0x11e0 mm/filemap.c:2820
blkdev_read_iter+0x2f8/0x430 block/fops.c:830
new_sync_read fs/read_write.c:493 [inline]
vfs_read+0x59e/0xa90 fs/read_write.c:574
ksys_read+0x156/0x270 fs/read_write.c:716
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb0b4975407
RSP: 002b:00007fff6569c750 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fb0b4887880 RCX: 00007fb0b4975407
RDX: 0000000000000200 RSI: 00007fb0b3f38000 RDI: 0000000000000009
RBP: 00005580e2c09050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000008000 R14: 00005580e2c12578 R15: 00007fb0b50cb39c
Showing all locks held in the system:
1 lock held by khungtaskd/38:
#0: ffffffff8e1c3000 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#0: ffffffff8e1c3000 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:840 [inline]
#0: ffffffff8e1c3000 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775
3 locks held by kworker/u8:5/121:
#0: ffff888032d6a938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#0: ffff888032d6a938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#1: ffffc90003007c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#1: ffffc90003007c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#2: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#2: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x123/0x16e0 net/ipv6/addrconf.c:4229
2 locks held by getty/5341:
#0: ffff8880299720a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90003cc62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 drivers/tty/n_tty.c:2211
2 locks held by udevd/5758:
#0: ffff888023457348 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023457348 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023457518 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023457518 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023457518 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/5856:
#0: ffff888023670948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023670948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023670b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023670b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023670b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.0.17/5953:
1 lock held by syz.1.18/5989:
2 locks held by udevd/6002:
#0: ffff888023456608 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023456608 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880234567d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880234567d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880234567d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.2.20/6036:
2 locks held by udevd/6041:
#0: ffff8880234558c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880234558c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023455a98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023455a98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023455a98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.3.21/6074:
2 locks held by udevd/6080:
#0: ffff888023454b88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023454b88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023454d58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023454d58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023454d58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
1 lock held by syz.4.22/6123:
2 locks held by udevd/6129:
#0: ffff888023453e48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023453e48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023454018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023454018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023454018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.5.23/6166:
2 locks held by syz-executor/6169:
#0: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#0: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#0: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8a3/0x1bd0 net/core/rtnetlink.c:4158
#1: ffff888034f6d978 (&wg->device_update_lock){+.+.}-{4:4}, at: wg_open+0x227/0x420 drivers/net/wireguard/device.c:50
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:122
nmi_trigger_cpumask_backtrace+0x17a/0x380 lib/nmi_backtrace.c:65
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x135/0x170 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
watchdog+0xfd7/0x1030 kernel/hung_task.c:561
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5989 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:separate_irq_context kernel/locking/lockdep.c:4703 [inline]
RIP: 0010:__lock_acquire+0x714/0x2ce0 kernel/locking/lockdep.c:5221
Code: 83 ff 31 0f 83 bc 23 00 00 4b 8d 04 bf 4d 89 ec 41 8b 6d 20 41 8b 84 c6 00 0c 00 00 31 e8 25 00 60 00 00 0f 95 c1 89 4c 24 20 <31> c9 f7 d8 48 19 c9 48 09 cb 48 83 bc 24 20 01 00 00 00 75 62 e9
RSP: 0018:ffffc900038df030 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 8282e3c03da6e2c0 RCX: ffffffff93466d00
RDX: 0000000000000008 RSI: ffff88803d8c4a58 RDI: ffff88803d8c3e00
RBP: 000000000002000b R08: ffffffff8b46033c R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffff88803d8c4a58
R13: ffff88803d8c4a58 R14: ffff88803d8c3e00 R15: 0000000000000002
FS: 0000555556760500(0000) GS:ffff888125c45000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a4c156e9c CR3: 000000003c92a000 CR4: 00000000003526f0
Call Trace:
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
rcu_read_lock include/linux/rcupdate.h:840 [inline]
__rt_spin_trylock kernel/locking/spinlock_rt.c:127 [inline]
rt_spin_trylock+0x128/0x2b0 kernel/locking/spinlock_rt.c:135
consume_stock mm/memcontrol.c:2087 [inline]
try_charge_memcg+0x253/0x15b0 mm/memcontrol.c:2611
charge_memcg+0x19c/0x2b0 mm/memcontrol.c:5126
__mem_cgroup_charge+0x25/0x80 mm/memcontrol.c:5143
mem_cgroup_charge include/linux/memcontrol.h:657 [inline]
filemap_add_folio+0x198/0x610 mm/filemap.c:965
__filemap_get_folio_mpol+0x442/0xf50 mm/filemap.c:2028
__filemap_get_folio include/linux/pagemap.h:761 [inline]
grow_dev_folio fs/buffer.c:960 [inline]
grow_buffers fs/buffer.c:1026 [inline]
__getblk_slow fs/buffer.c:1044 [inline]
bdev_getblk+0x1f4/0x6e0 fs/buffer.c:1439
ext4_sb_breadahead_unmovable+0x6f/0xf0 fs/ext4/super.c:280
__ext4_get_inode_loc+0xb03/0xf40 fs/ext4/inode.c:4974
__ext4_get_inode_loc_noinmem fs/ext4/inode.c:5004 [inline]
__ext4_iget+0x44e/0x45b0 fs/ext4/inode.c:5316
__ext4_fill_super fs/ext4/super.c:5600 [inline]
ext4_fill_super+0x4de1/0x65d0 fs/ext4/super.c:5828
get_tree_bdev_flags+0x430/0x4f0 fs/super.c:1640
vfs_get_tree+0x92/0x2a0 fs/super.c:1700
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3765 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3841
do_mount fs/namespace.c:4174 [inline]
__do_sys_mount fs/namespace.c:4390 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4367
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff51bbdf34a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffda92d5268 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffda92d52f0 RCX: 00007ff51bbdf34a
RDX: 0000200000000240 RSI: 0000200000000280 RDI: 00007ffda92d52b0
RBP: 0000200000000240 R08: 00007ffda92d52f0 R09: 0000000000800003
R10: 0000000000800003 R11: 0000000000000246 R12: 0000200000000280
R13: 00007ffda92d52b0 R14: 000000000000025f R15: 0000200000000000
final repro crashed as (corrupted=false):
INFO: task udevd:5856 blocked in I/O wait for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25672 pid:5856 tgid:5856 ppid:4953 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5510 [inline]
__schedule+0x16dc/0x5500 kernel/sched/core.c:7234
__schedule_loop kernel/sched/core.c:7311 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7326
io_schedule+0x80/0xe0 kernel/sched/core.c:8154
bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:250
__wait_on_bit_lock+0xe0/0x4a0 kernel/sched/wait_bit.c:93
out_of_line_wait_on_bit_lock+0x13b/0x190 kernel/sched/wait_bit.c:120
wait_on_bit_lock_io include/linux/wait_bit.h:221 [inline]
__lock_buffer fs/buffer.c:68 [inline]
lock_buffer include/linux/buffer_head.h:434 [inline]
block_read_full_folio+0x38f/0x810 fs/buffer.c:2417
filemap_read_folio+0x12c/0x3a0 mm/filemap.c:2516
filemap_update_page mm/filemap.c:2603 [inline]
filemap_get_pages+0x16f9/0x1e80 mm/filemap.c:2733
filemap_read+0x429/0x11e0 mm/filemap.c:2820
blkdev_read_iter+0x2f8/0x430 block/fops.c:830
new_sync_read fs/read_write.c:493 [inline]
vfs_read+0x59e/0xa90 fs/read_write.c:574
ksys_read+0x156/0x270 fs/read_write.c:716
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb0b4975407
RSP: 002b:00007fff6569c750 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fb0b4887880 RCX: 00007fb0b4975407
RDX: 0000000000000200 RSI: 00007fb0b3f38000 RDI: 0000000000000009
RBP: 00005580e2c09050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000008000 R14: 00005580e2c12578 R15: 00007fb0b50cb39c
Showing all locks held in the system:
1 lock held by khungtaskd/38:
#0: ffffffff8e1c3000 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#0: ffffffff8e1c3000 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:840 [inline]
#0: ffffffff8e1c3000 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775
3 locks held by kworker/u8:5/121:
#0: ffff888032d6a938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#0: ffff888032d6a938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#1: ffffc90003007c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#1: ffffc90003007c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#2: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#2: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x123/0x16e0 net/ipv6/addrconf.c:4229
2 locks held by getty/5341:
#0: ffff8880299720a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90003cc62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 drivers/tty/n_tty.c:2211
2 locks held by udevd/5758:
#0: ffff888023457348 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023457348 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023457518 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023457518 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023457518 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/5856:
#0: ffff888023670948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023670948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023670b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023670b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023670b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.0.17/5953:
1 lock held by syz.1.18/5989:
2 locks held by udevd/6002:
#0: ffff888023456608 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023456608 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880234567d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880234567d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880234567d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.2.20/6036:
2 locks held by udevd/6041:
#0: ffff8880234558c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880234558c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023455a98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023455a98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023455a98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.3.21/6074:
2 locks held by udevd/6080:
#0: ffff888023454b88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023454b88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023454d58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023454d58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023454d58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
1 lock held by syz.4.22/6123:
2 locks held by udevd/6129:
#0: ffff888023453e48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff888023453e48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff888023454018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff888023454018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff888023454018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.5.23/6166:
2 locks held by syz-executor/6169:
#0: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#0: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#0: ffffffff8f5ac438 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8a3/0x1bd0 net/core/rtnetlink.c:4158
#1: ffff888034f6d978 (&wg->device_update_lock){+.+.}-{4:4}, at: wg_open+0x227/0x420 drivers/net/wireguard/device.c:50
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:122
nmi_trigger_cpumask_backtrace+0x17a/0x380 lib/nmi_backtrace.c:65
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x135/0x170 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
watchdog+0xfd7/0x1030 kernel/hung_task.c:561
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5989 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:separate_irq_context kernel/locking/lockdep.c:4703 [inline]
RIP: 0010:__lock_acquire+0x714/0x2ce0 kernel/locking/lockdep.c:5221
Code: 83 ff 31 0f 83 bc 23 00 00 4b 8d 04 bf 4d 89 ec 41 8b 6d 20 41 8b 84 c6 00 0c 00 00 31 e8 25 00 60 00 00 0f 95 c1 89 4c 24 20 <31> c9 f7 d8 48 19 c9 48 09 cb 48 83 bc 24 20 01 00 00 00 75 62 e9
RSP: 0018:ffffc900038df030 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 8282e3c03da6e2c0 RCX: ffffffff93466d00
RDX: 0000000000000008 RSI: ffff88803d8c4a58 RDI: ffff88803d8c3e00
RBP: 000000000002000b R08: ffffffff8b46033c R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffff88803d8c4a58
R13: ffff88803d8c4a58 R14: ffff88803d8c3e00 R15: 0000000000000002
FS: 0000555556760500(0000) GS:ffff888125c45000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a4c156e9c CR3: 000000003c92a000 CR4: 00000000003526f0
Call Trace:
lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
rcu_read_lock include/linux/rcupdate.h:840 [inline]
__rt_spin_trylock kernel/locking/spinlock_rt.c:127 [inline]
rt_spin_trylock+0x128/0x2b0 kernel/locking/spinlock_rt.c:135
consume_stock mm/memcontrol.c:2087 [inline]
try_charge_memcg+0x253/0x15b0 mm/memcontrol.c:2611
charge_memcg+0x19c/0x2b0 mm/memcontrol.c:5126
__mem_cgroup_charge+0x25/0x80 mm/memcontrol.c:5143
mem_cgroup_charge include/linux/memcontrol.h:657 [inline]
filemap_add_folio+0x198/0x610 mm/filemap.c:965
__filemap_get_folio_mpol+0x442/0xf50 mm/filemap.c:2028
__filemap_get_folio include/linux/pagemap.h:761 [inline]
grow_dev_folio fs/buffer.c:960 [inline]
grow_buffers fs/buffer.c:1026 [inline]
__getblk_slow fs/buffer.c:1044 [inline]
bdev_getblk+0x1f4/0x6e0 fs/buffer.c:1439
ext4_sb_breadahead_unmovable+0x6f/0xf0 fs/ext4/super.c:280
__ext4_get_inode_loc+0xb03/0xf40 fs/ext4/inode.c:4974
__ext4_get_inode_loc_noinmem fs/ext4/inode.c:5004 [inline]
__ext4_iget+0x44e/0x45b0 fs/ext4/inode.c:5316
__ext4_fill_super fs/ext4/super.c:5600 [inline]
ext4_fill_super+0x4de1/0x65d0 fs/ext4/super.c:5828
get_tree_bdev_flags+0x430/0x4f0 fs/super.c:1640
vfs_get_tree+0x92/0x2a0 fs/super.c:1700
fc_mount fs/namespace.c:1198 [inline]
do_new_mount_fc fs/namespace.c:3765 [inline]
do_new_mount+0x319/0xdc0 fs/namespace.c:3841
do_mount fs/namespace.c:4174 [inline]
__do_sys_mount fs/namespace.c:4390 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4367
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff51bbdf34a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffda92d5268 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffda92d52f0 RCX: 00007ff51bbdf34a
RDX: 0000200000000240 RSI: 0000200000000280 RDI: 00007ffda92d52b0
RBP: 0000200000000240 R08: 00007ffda92d52f0 R09: 0000000000800003
R10: 0000000000800003 R11: 0000000000000246 R12: 0000200000000280
R13: 00007ffda92d52b0 R14: 000000000000025f R15: 0000200000000000