Extracting prog: 5m8.01884558s
Minimizing prog: 64.09µs
Simplifying prog options: 0s
Extracting C: 3m8.739984792s
Simplifying C: 24m56.69154591s
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$ext4
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$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
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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")
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 46m40.888124542s
repro crashed as (corrupted=false):
INFO: task udevd:5700 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:25168 pid:5700 tgid:5700 ppid:4949 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: 0033:0x7fa2d28b7407
RSP: 002b:00007ffc25faa2c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fa2d27c9880 RCX: 00007fa2d28b7407
RDX: 0000000000000200 RSI: 00007fa2d1e7a000 RDI: 0000000000000009
RBP: 0000557074295050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000008000 R14: 0000557074297888 R15: 00007fa2d300d39c
Showing all locks held in the system:
1 lock held by khungtaskd/37:
#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/u9:0/59:
#0: ffff888027e11138 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#0: ffff888027e11138 ((wq_completion)hci2){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#1: ffffc9000125fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#1: ffffc9000125fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#2: ffff888028184f80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1cb/0x3f0 net/bluetooth/hci_sync.c:331
2 locks held by kswapd0/94:
2 locks held by getty/5336:
#0: ffff88803658b0a0 (&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/5639:
#0: ffff8880236ecb88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ecb88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236ecd58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236ecd58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236ecd58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/5700:
#0: ffff8880236ed8c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ed8c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236eda98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236eda98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236eda98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.0.17/5951:
2 locks held by syz.1.19/6011:
2 locks held by udevd/6015:
#0: ffff8880236ebe48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ebe48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236ec018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236ec018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236ec018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/6018:
#0: ffff8880236eb108 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236eb108 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236eb2d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236eb2d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236eb2d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
1 lock held by syz.2.20/6050:
1 lock held by syz.3.21/6086:
2 locks held by udevd/6096:
#0: ffff8880236ea3c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ea3c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236ea598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236ea598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236ea598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/6098:
#0: ffff8880236e9688 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236e9688 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236e9858 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236e9858 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236e9858 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.4.22/6136:
1 lock held by syz.5.23/6179:
2 locks held by udevd/6186:
#0: ffff8880236e8948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236e8948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236e8b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236e8b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236e8b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
1 lock held by syz.6.24/6229:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 94 Comm: kswapd0 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__lock_acquire+0xcb3/0x2ce0 kernel/locking/lockdep.c:5251
Code: 3d d1 f5 0d 0e 00 0f 84 0f 07 00 00 41 f6 45 22 10 75 2c 49 89 ae f8 0b 00 00 41 8b 86 00 0c 00 00 ff c0 41 89 86 00 0c 00 00 <83> f8 30 0f 83 78 18 00 00 3b 05 86 ef 03 12 0f 87 cb 18 00 00 bd
RSP: 0018:ffffc90002f2e958 EFLAGS: 00000002
RAX: 0000000000000002 RBX: 00000000ba323a81 RCX: 0000000000000000
RDX: 000000007a7c6c8f RSI: 00000000e2f3bb8b RDI: ffff88801e3fbe00
RBP: e76e361aba323a81 R08: ffffffff8177725f R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffff88801e3fca30
R13: ffff88801e3fca30 R14: ffff88801e3fbe00 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555842c74e8 CR3: 000000014b70e000 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]
class_rcu_constructor include/linux/rcupdate.h:1183 [inline]
unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:253 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2677 [inline]
slab_free mm/slub.c:6377 [inline]
kmem_cache_free+0x187/0x6c0 mm/slub.c:6504
free_buffer_head+0x55/0x220 fs/buffer.c:2978
try_to_free_buffers+0x25d/0x300 fs/buffer.c:2919
shrink_folio_list+0x22a7/0x50f0 mm/vmscan.c:1463
shrink_inactive_list mm/vmscan.c:2030 [inline]
shrink_list mm/vmscan.c:2226 [inline]
shrink_lruvec+0x15ca/0x28b0 mm/vmscan.c:5925
shrink_node_memcgs mm/vmscan.c:6127 [inline]
shrink_node+0x1172/0x28f0 mm/vmscan.c:6171
kswapd_shrink_node mm/vmscan.c:7008 [inline]
balance_pgdat mm/vmscan.c:7186 [inline]
kswapd+0x1410/0x2940 mm/vmscan.c:7462
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
final repro crashed as (corrupted=false):
INFO: task udevd:5700 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:25168 pid:5700 tgid:5700 ppid:4949 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: 0033:0x7fa2d28b7407
RSP: 002b:00007ffc25faa2c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fa2d27c9880 RCX: 00007fa2d28b7407
RDX: 0000000000000200 RSI: 00007fa2d1e7a000 RDI: 0000000000000009
RBP: 0000557074295050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000008000 R14: 0000557074297888 R15: 00007fa2d300d39c
Showing all locks held in the system:
1 lock held by khungtaskd/37:
#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/u9:0/59:
#0: ffff888027e11138 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#0: ffff888027e11138 ((wq_completion)hci2){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#1: ffffc9000125fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3297 [inline]
#1: ffffc9000125fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0 kernel/workqueue.c:3405
#2: ffff888028184f80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1cb/0x3f0 net/bluetooth/hci_sync.c:331
2 locks held by kswapd0/94:
2 locks held by getty/5336:
#0: ffff88803658b0a0 (&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/5639:
#0: ffff8880236ecb88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ecb88 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236ecd58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236ecd58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236ecd58 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/5700:
#0: ffff8880236ed8c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ed8c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236eda98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236eda98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236eda98 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.0.17/5951:
2 locks held by syz.1.19/6011:
2 locks held by udevd/6015:
#0: ffff8880236ebe48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ebe48 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236ec018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236ec018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236ec018 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/6018:
#0: ffff8880236eb108 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236eb108 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236eb2d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236eb2d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236eb2d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
1 lock held by syz.2.20/6050:
1 lock held by syz.3.21/6086:
2 locks held by udevd/6096:
#0: ffff8880236ea3c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236ea3c8 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236ea598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236ea598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236ea598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by udevd/6098:
#0: ffff8880236e9688 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236e9688 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236e9858 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236e9858 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236e9858 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
2 locks held by syz.4.22/6136:
1 lock held by syz.5.23/6179:
2 locks held by udevd/6186:
#0: ffff8880236e8948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1039 [inline]
#0: ffff8880236e8948 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: blkdev_read_iter+0x2e6/0x430 block/fops.c:829
#1: ffff8880236e8b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:1089 [inline]
#1: ffff8880236e8b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_update_page mm/filemap.c:2569 [inline]
#1: ffff8880236e8b18 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_get_pages+0x936/0x1e80 mm/filemap.c:2733
1 lock held by syz.6.24/6229:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 94 Comm: kswapd0 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__lock_acquire+0xcb3/0x2ce0 kernel/locking/lockdep.c:5251
Code: 3d d1 f5 0d 0e 00 0f 84 0f 07 00 00 41 f6 45 22 10 75 2c 49 89 ae f8 0b 00 00 41 8b 86 00 0c 00 00 ff c0 41 89 86 00 0c 00 00 <83> f8 30 0f 83 78 18 00 00 3b 05 86 ef 03 12 0f 87 cb 18 00 00 bd
RSP: 0018:ffffc90002f2e958 EFLAGS: 00000002
RAX: 0000000000000002 RBX: 00000000ba323a81 RCX: 0000000000000000
RDX: 000000007a7c6c8f RSI: 00000000e2f3bb8b RDI: ffff88801e3fbe00
RBP: e76e361aba323a81 R08: ffffffff8177725f R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffff88801e3fca30
R13: ffff88801e3fca30 R14: ffff88801e3fbe00 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555842c74e8 CR3: 000000014b70e000 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]
class_rcu_constructor include/linux/rcupdate.h:1183 [inline]
unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:253 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2677 [inline]
slab_free mm/slub.c:6377 [inline]
kmem_cache_free+0x187/0x6c0 mm/slub.c:6504
free_buffer_head+0x55/0x220 fs/buffer.c:2978
try_to_free_buffers+0x25d/0x300 fs/buffer.c:2919
shrink_folio_list+0x22a7/0x50f0 mm/vmscan.c:1463
shrink_inactive_list mm/vmscan.c:2030 [inline]
shrink_list mm/vmscan.c:2226 [inline]
shrink_lruvec+0x15ca/0x28b0 mm/vmscan.c:5925
shrink_node_memcgs mm/vmscan.c:6127 [inline]
shrink_node+0x1172/0x28f0 mm/vmscan.c:6171
kswapd_shrink_node mm/vmscan.c:7008 [inline]
balance_pgdat mm/vmscan.c:7186 [inline]
kswapd+0x1410/0x2940 mm/vmscan.c:7462
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