INFO: task syz-executor.1:17296 blocked for more than 143 seconds.
Not tainted 6.3.0-rc3-syzkaller-00317-g65aca32efdcb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27456 pid:17296 ppid:9733 flags:0x20004004
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xc91/0x5770 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
request_wait_answer+0x46d/0x850 fs/fuse/dev.c:407
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x504/0xd80 fs/fuse/dev.c:513
fuse_getxattr+0x22f/0x410 fs/fuse/xattr.c:82
fuse_xattr_get+0x7d/0xb0 fs/fuse/xattr.c:188
vfs_getxattr_alloc+0x1af/0x330 fs/xattr.c:396
ima_read_xattr+0x38/0x70 security/integrity/ima/ima_appraise.c:231
process_measurement+0xcb3/0x1930 security/integrity/ima/ima_main.c:322
ima_file_check+0xba/0x100 security/integrity/ima/ima_main.c:539
do_open fs/namei.c:3562 [inline]
path_openat+0x15d3/0x2750 fs/namei.c:3715
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1348
do_sys_open fs/open.c:1364 [inline]
__do_compat_sys_openat fs/open.c:1424 [inline]
__se_compat_sys_openat fs/open.c:1422 [inline]
__ia32_compat_sys_openat+0x143/0x1f0 fs/open.c:1422
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7ff0579
RSP: 002b:00000000f7fca5cc EFLAGS: 00000296 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 0000000020000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c794b70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c794870 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8c7956c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495
2 locks held by getty/4761:
#0: ffff88814a73c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.3/5127:
#0: ffff8880271a6e38 (&xt[i].compat_mutex){+.+.}-{3:3}, at: get_info+0x155/0x740 net/ipv4/netfilter/ip_tables.c:963
2 locks held by kworker/0:10/8965:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x87a/0x15c0 kernel/workqueue.c:2361
#1: ffffc9000382fda8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x15c0 kernel/workqueue.c:2365
2 locks held by kworker/u4:10/12806:
1 lock held by syz-executor.1/17296:
#0: ffff888017ea3980 (&iint->mutex){+.+.}-{3:3}, at: process_measurement+0x67b/0x1930 security/integrity/ima/ima_main.c:262
1 lock held by syz-executor.1/17475:
#0: ffffffff8c7a09b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#0: ffffffff8c7a09b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:989
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc3-syzkaller-00317-g65aca32efdcb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8965 Comm: kworker/0:10 Not tainted 6.3.0-rc3-syzkaller-00317-g65aca32efdcb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:104 [inline]
RIP: 0010:do_raw_spin_unlock+0xf0/0x230 kernel/locking/spinlock_debug.c:140
Code: fc ff df 4c 89 e2 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e fb 00 00 00 65 8b 05 95 98 9e 7e 39 45 08 0f 85 b4 00 00 00 <48> b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f
RSP: 0018:ffffc9000382fca0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81651f64
RDX: 1ffffffff1ac0c45 RSI: 0000000000000004 RDI: ffffffff8d606220
RBP: ffffffff8d606220 R08: 0000000000000000 R09: ffffffff8d606223
R10: fffffbfff1ac0c44 R11: 0000000000000000 R12: ffffffff8d606228
R13: ffffffff8d606230 R14: ffff88801cc15000 R15: 0000000000000cea
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f734f914 CR3: 0000000027b38000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_unlock+0x1e/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:390 [inline]
wg_ratelimiter_gc_entries+0x2d8/0x430 drivers/net/wireguard/ratelimiter.c:76
process_one_work+0x991/0x15c0 kernel/workqueue.c:2390
worker_thread+0x669/0x1090 kernel/workqueue.c:2537
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308