INFO: task udevd:4022 blocked for more than 143 seconds.
Not tainted 5.18.0-syzkaller-00161-g1e57930e9f40 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:26160 pid: 4022 ppid: 2967 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
io_schedule+0xba/0x130 kernel/sched/core.c:8575
folio_wait_bit_common+0x4f2/0xa90 mm/filemap.c:1324
folio_wait_bit mm/filemap.c:1473 [inline]
folio_wait_locked include/linux/pagemap.h:976 [inline]
folio_wait_locked include/linux/pagemap.h:973 [inline]
do_read_cache_folio+0x506/0x760 mm/filemap.c:3516
do_read_cache_page mm/filemap.c:3588 [inline]
read_cache_page+0x59/0x2a0 mm/filemap.c:3597
read_mapping_page include/linux/pagemap.h:759 [inline]
read_part_sector+0xf6/0x920 block/partitions/core.c:723
adfspart_check_ICS+0x9a/0x690 block/partitions/acorn.c:360
check_partition block/partitions/core.c:147 [inline]
blk_add_partitions block/partitions/core.c:608 [inline]
bdev_disk_changed block/partitions/core.c:694 [inline]
bdev_disk_changed+0x629/0xf60 block/partitions/core.c:661
blkdev_get_whole+0x206/0x2d0 block/bdev.c:679
blkdev_get_by_dev.part.0+0x5d2/0xc80 block/bdev.c:816
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:850
blkdev_open+0x13c/0x2c0 block/fops.c:498
do_dentry_open+0x4a1/0x11e0 fs/open.c:824
do_open fs/namei.c:3476 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3609
do_filp_open+0x1aa/0x400 fs/namei.c:3636
do_sys_openat2+0x16d/0x4c0 fs/open.c:1213
do_sys_open fs/open.c:1229 [inline]
__do_sys_openat fs/open.c:1245 [inline]
__se_sys_openat fs/open.c:1240 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1240
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0384b25697
RSP: 002b:00007ffce2eb21e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055ae14436070 RCX: 00007f0384b25697
RDX: 00000000000a0800 RSI: 000055ae1441d3f0 RDI: 00000000ffffff9c
RBP: 000055ae1441d3f0 R08: 0000000000000001 R09: 00007ffce2fba080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055ae14403440 R14: 0000000000000001 R15: 000055ae143e72c0
INFO: task syz-executor.4:9463 blocked for more than 143 seconds.
Not tainted 5.18.0-syzkaller-00161-g1e57930e9f40 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28520 pid: 9463 ppid: 3634 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6519
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
blkdev_put+0x99/0x950 block/bdev.c:905
blkdev_close+0x64/0x80 block/fops.c:512
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f891fa3bd2b
RSP: 002b:00007ffdc47b7470 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f891fa3bd2b
RDX: 0000001b2e820000 RSI: 0000001b2e8232a0 RDI: 0000000000000003
RBP: 00007f891fb9d960 R08: 0000000000000000 R09: 0000000061119322
R10: 00007ffdc47c9090 R11: 0000000000000293 R12: 000000000007fd93
R13: 00007ffdc47b7570 R14: 00007ffdc47b7590 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8bd7f3a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
2 locks held by kworker/u4:4/966:
2 locks held by getty/3277:
#0: ffff88814c633098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90001bf92e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
1 lock held by udevd/4022:
#0: ffff88801c3a3918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xc80 block/bdev.c:807
1 lock held by syz-executor.4/9463:
#0: ffff88801c3a3918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x99/0x950 block/bdev.c:905
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-syzkaller-00161-g1e57930e9f40 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8 Comm: kworker/u4:0 Not tainted 5.18.0-syzkaller-00161-g1e57930e9f40 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:59 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x34/0x180 mm/kasan/generic.c:189
Code: 89 f9 41 54 44 0f b6 c2 49 01 f1 55 53 0f 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 05 01 00 00 49 83 e9 01 <48> 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 ca 48 c1 ed 03 49 c1
RSP: 0018:ffffc900002ef9a8 EFLAGS: 00000092
RAX: ffff7fffffffffff RBX: 0000000000000746 RCX: ffffffff815c8022
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff900739e8
RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffff900739ef
R10: fffffbfff200e73d R11: 0000000000000001 R12: 0000000000000001
R13: ffff888011e50200 R14: ffff888011e50c60 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e9c849990 CR3: 000000007063e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:197 [inline]
check_wait_context kernel/locking/lockdep.c:4727 [inline]
__lock_acquire+0x6f2/0x56c0 kernel/locking/lockdep.c:4979
lock_acquire kernel/locking/lockdep.c:5641 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606
rcu_lock_acquire include/linux/rcupdate.h:269 [inline]
rcu_read_lock include/linux/rcupdate.h:695 [inline]
batadv_nc_process_nc_paths.part.0+0xec/0x3c0 net/batman-adv/network-coding.c:687
batadv_nc_process_nc_paths net/batman-adv/network-coding.c:679 [inline]
batadv_nc_worker+0xce4/0xfa0 net/batman-adv/network-coding.c:735
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess):
0: 89 f9 mov %edi,%ecx
2: 41 54 push %r12
4: 44 0f b6 c2 movzbl %dl,%r8d
8: 49 01 f1 add %rsi,%r9
b: 55 push %rbp
c: 53 push %rbx
d: 0f 82 18 01 00 00 jb 0x12b
13: 48 b8 ff ff ff ff ff movabs $0xffff7fffffffffff,%rax
1a: 7f ff ff
1d: 48 39 c7 cmp %rax,%rdi
20: 0f 86 05 01 00 00 jbe 0x12b
26: 49 83 e9 01 sub $0x1,%r9
* 2a: 48 89 fd mov %rdi,%rbp <-- trapping instruction
2d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
34: fc ff df
37: 4d 89 ca mov %r9,%r10
3a: 48 c1 ed 03 shr $0x3,%rbp
3e: 49 rex.WB
3f: c1 .byte 0xc1