INFO: task syz-executor.4:5452 blocked for more than 143 seconds.
Not tainted 6.5.0-next-20230830-syzkaller-13390-g56585460cc2e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28112 pid:5452 ppid:5402 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
tty_open_by_driver drivers/tty/tty_io.c:2044 [inline]
tty_open+0x567/0x1010 drivers/tty/tty_io.c:2127
chrdev_open+0x277/0x700 fs/char_dev.c:414
do_dentry_open+0x88b/0x1730 fs/open.c:929
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1448
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8923878640
RSP: 002b:00007f892495cc00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8923878640
RDX: 0000000000000002 RSI: 00007f892495cca0 RDI: 00000000ffffff9c
RBP: 00007f892495cca0 R08: 0000000000000000 R09: 00007f892495ca16
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007f892398bf60 R15: 00007ffdf160bd38
INFO: task syz-executor.1:5477 blocked for more than 143 seconds.
Not tainted 6.5.0-next-20230830-syzkaller-13390-g56585460cc2e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28464 pid:5477 ppid:5462 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
tty_open_by_driver drivers/tty/tty_io.c:2044 [inline]
tty_open+0x567/0x1010 drivers/tty/tty_io.c:2127
chrdev_open+0x277/0x700 fs/char_dev.c:414
do_dentry_open+0x88b/0x1730 fs/open.c:929
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1448
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fec79a78640
RSP: 002b:00007fec7aaedc00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fec79a78640
RDX: 0000000000000002 RSI: 00007fec7aaedca0 RDI: 00000000ffffff9c
RBP: 00007fec7aaedca0 R08: 0000000000000000 R09: 00007fec7aaeda16
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007fec79b8bf60 R15: 00007ffd0979ee88
INFO: task syz-executor.2:5505 blocked for more than 143 seconds.
Not tainted 6.5.0-next-20230830-syzkaller-13390-g56585460cc2e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28112 pid:5505 ppid:5485 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
tty_open_by_driver drivers/tty/tty_io.c:2044 [inline]
tty_open+0x567/0x1010 drivers/tty/tty_io.c:2127
chrdev_open+0x277/0x700 fs/char_dev.c:414
do_dentry_open+0x88b/0x1730 fs/open.c:929
do_open fs/namei.c:3639 [inline]
path_openat+0x19af/0x29c0 fs/namei.c:3796
do_filp_open+0x1de/0x430 fs/namei.c:3823
do_sys_openat2+0x176/0x1e0 fs/open.c:1422
do_sys_open fs/open.c:1437 [inline]
__do_sys_openat fs/open.c:1453 [inline]
__se_sys_openat fs/open.c:1448 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1448
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff728a78640
RSP: 002b:00007ff729c54c00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff728a78640
RDX: 0000000000000002 RSI: 00007ff729c54ca0 RDI: 00000000ffffff9c
RBP: 00007ff729c54ca0 R08: 0000000000000000 R09: 00007ff729c54a16
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007ff728b8bf60 R15: 00007ffecef4e258
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.5.0-next-20230830-syzkaller-13390-g56585460cc2e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfac/0x1230 kernel/hung_task.c:379
kthread+0x33a/0x430 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4496 Comm: udevd Not tainted 6.5.0-next-20230830-syzkaller-13390-g56585460cc2e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x17/0x70 kernel/kcov.c:206
Code: ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 4d dd 7b 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 <65> 48 8b 14 25 c0 bc 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82
RSP: 0018:ffffc900031cf8d0 EFLAGS: 00000246
RAX: 0000000080000001 RBX: ffffc900031cf958 RCX: 0000000000000000
RDX: ffff88807df89dc0 RSI: ffffffff813a7226 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc900031cff48
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001
FS: 00007fe584b6cc80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e67920c220 CR3: 0000000020707000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
deref_stack_reg arch/x86/kernel/unwind_orc.c:406 [inline]
unwind_next_frame+0x1ab6/0x2390 arch/x86/kernel/unwind_orc.c:648
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x172/0x3b0 mm/slub.c:3502
getname_flags.part.0+0x50/0x4d0 fs/namei.c:140
getname_flags+0x9c/0xf0 include/linux/audit.h:319
vfs_fstatat+0x77/0xb0 fs/stat.c:314
__do_sys_newfstatat+0x98/0x110 fs/stat.c:485
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe5847165f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffdadb776c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000055e6791416c8 RCX: 00007fe5847165f4
RDX: 00007ffdadb776d8 RSI: 000055e679131897 RDI: 00000000ffffff9c
RBP: 000055e67920bbd8 R08: 0005f9c4c6fe15c0 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 0005f9c4c6fe15c0 R15: 000055e679135dca