INFO: task syz.1.2003:13090 blocked for more than 143 seconds.
Not tainted 6.10.0-rc5-syzkaller-00294-g3ffea9a7a6f7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2003 state:D stack:24672 pid:13090 tgid:13090 ppid:12877 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
ima_check_last_writer security/integrity/ima/ima_main.c:166 [inline]
ima_file_free+0x18a/0x4e0 security/integrity/ima/ima_main.c:205
security_file_release+0x48/0x90 security/security.c:2728
__fput+0x372/0x8b0 fs/file_table.c:416
task_work_run+0x24f/0x310 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x168/0x360 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7076575b99
RSP: 002b:00007ffed13ebac8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f7076705aa0 RCX: 00007f7076575b99
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f7076705aa0 R08: 0000000000000006 R09: 0000001ed13ebddf
R10: 00000000003ffbdc R11: 0000000000000246 R12: 00000000000988c9
R13: 0000000000000032 R14: 00007f7076705aa0 R15: 00007ffed13ebbb0
INFO: task syz.1.2003:13091 blocked for more than 144 seconds.
Not tainted 6.10.0-rc5-syzkaller-00294-g3ffea9a7a6f7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2003 state:D stack:25232 pid:13091 tgid:13090 ppid:12877 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
process_measurement+0x7ac/0x1fb0 security/integrity/ima/ima_main.c:269
ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572
security_file_post_open+0x6d/0xa0 security/security.c:2982
do_open fs/namei.c:3652 [inline]
path_openat+0x28f6/0x3280 fs/namei.c:3807
do_filp_open+0x235/0x490 fs/namei.c:3834
do_sys_openat2+0x13e/0x1d0 fs/open.c:1405
do_sys_open fs/open.c:1420 [inline]
__do_sys_open fs/open.c:1428 [inline]
__se_sys_open fs/open.c:1424 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1424
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7076575b99
RSP: 002b:00007f70773e5048 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f7076703fa0 RCX: 00007f7076575b99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007f70765f677e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7076703fa0 R15: 00007ffed13eb9e8
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4837:
#0: ffff88802b1cc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:4/5133:
6 locks held by kworker/1:8/5189:
4 locks held by kworker/1:0/12926:
1 lock held by syz.1.2003/13090:
#0: ffff888022e3ab08 (&ima_iint_mutex_key[depth]#2){+.+.}-{3:3}, at: ima_check_last_writer security/integrity/ima/ima_main.c:166 [inline]
#0: ffff888022e3ab08 (&ima_iint_mutex_key[depth]#2){+.+.}-{3:3}, at: ima_file_free+0x18a/0x4e0 security/integrity/ima/ima_main.c:205
1 lock held by syz.1.2003/13091:
#0: ffff888022e3ab08 (&ima_iint_mutex_key[depth]#2){+.+.}-{3:3}, at: process_measurement+0x7ac/0x1fb0 security/integrity/ima/ima_main.c:269
1 lock held by syz.1.2003/13093:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc5-syzkaller-00294-g3ffea9a7a6f7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1046 Comm: kworker/u8:5 Not tainted 6.10.0-rc5-syzkaller-00294-g3ffea9a7a6f7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
RIP: 0010:batadv_nc_worker+0x215/0x610 net/batman-adv/network-coding.c:719
Code: 62 4e f6 e8 ad 75 35 00 89 c3 31 ff 89 c6 e8 42 66 4e f6 85 db 74 15 e8 a9 8e 34 f6 84 c0 74 18 e8 f0 61 4e f6 48 8b 5c 24 10 65 e8 e4 61 4e f6 48 8b 5c 24 10 eb 59 e8 78 75 35 00 89 c3 31
RSP: 0018:ffffc90003fd7b58 EFLAGS: 00000293
RAX: ffffffff8b47c7c0 RBX: ffffffff8b47c67b RCX: ffff8880225b0000
RDX: 0000000000000000 RSI: ffffffff8c1f1760 RDI: ffffffff8c1f1720
RBP: 0000000000000000 R08: ffffffff8b47c7ae R09: 1ffffffff25ee2b0
R10: dffffc0000000000 R11: fffffbfff25ee2b1 R12: ffff8880488f4ca0
R13: 0000000000000083 R14: ffff8880186bf300 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7340d0ab8 CR3: 000000001cb94000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244