INFO: task syz-executor.3:24206 can't die for more than 143 seconds.
task:syz-executor.3 state:D stack:27944 pid:24206 ppid: 3629 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5107 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6422
schedule+0xd2/0x1f0 kernel/sched/core.c:6494
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1883
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
__flush_work+0x56c/0xb10 kernel/workqueue.c:3097
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184
p9_conn_destroy net/9p/trans_fd.c:889 [inline]
p9_fd_close+0x305/0x520 net/9p/trans_fd.c:919
p9_client_create+0x97a/0x1070 net/9p/client.c:1072
v9fs_session_init+0x1e2/0x1810 fs/9p/v9fs.c:408
v9fs_mount+0x73/0xa80 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1497
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
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: 0033:0x7fb6dde890e9
RSP: 002b:00007fb6def49168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb6ddf9c100 RCX: 00007fb6dde890e9
RDX: 00000000200001c0 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fb6ddee308d R08: 0000000020000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe04be38af R14: 00007fb6def49300 R15: 0000000000022000
INFO: task syz-executor.3:24206 blocked for more than 143 seconds.
Not tainted 5.18.0-rc3-next-20220420-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27944 pid:24206 ppid: 3629 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5107 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6422
schedule+0xd2/0x1f0 kernel/sched/core.c:6494
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1883
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
__flush_work+0x56c/0xb10 kernel/workqueue.c:3097
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184
p9_conn_destroy net/9p/trans_fd.c:889 [inline]
p9_fd_close+0x305/0x520 net/9p/trans_fd.c:919
p9_client_create+0x97a/0x1070 net/9p/client.c:1072
v9fs_session_init+0x1e2/0x1810 fs/9p/v9fs.c:408
v9fs_mount+0x73/0xa80 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1497
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
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: 0033:0x7fb6dde890e9
RSP: 002b:00007fb6def49168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb6ddf9c100 RCX: 00007fb6dde890e9
RDX: 00000000200001c0 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fb6ddee308d R08: 0000000020000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe04be38af R14: 00007fb6def49300 R15: 0000000000022000
Showing all locks held in the system:
2 locks held by kworker/0:1/14:
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90000d37da8 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
1 lock held by khungtaskd/28:
#0: ffffffff8bd84f60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by getty/3276:
#0: ffff888144991098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b832e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2111
4 locks held by kworker/u4:18/5144:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc3-next-20220420-syzkaller #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:256 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:413
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5162 Comm: kworker/u4:23 Not tainted 5.18.0-rc3-next-20220420-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [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+0xde/0x180 mm/kasan/generic.c:189
Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c
RSP: 0018:ffffc90002cff798 EFLAGS: 00000046
RAX: fffffbfff200e310 RBX: fffffbfff200e311 RCX: ffffffff815db55b
RDX: fffffbfff200e311 RSI: 0000000000000008 RDI: ffffffff90071880
RBP: fffffbfff200e310 R08: 0000000000000000 R09: ffffffff90071887
R10: fffffbfff200e310 R11: 0000000000000001 R12: ffff888028260b08
R13: ffff888028260000 R14: 0000000000040000 R15: 000000000004000a
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000691458 CR3: 000000000ba8e000 CR4: 00000000003506f0
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:227 [inline]
check_wait_context kernel/locking/lockdep.c:4727 [inline]
__lock_acquire+0x3eb/0x5660 kernel/locking/lockdep.c:5003
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x12f/0x1350 kernel/locking/mutex.c:747
arch_jump_label_transform_queue+0x58/0x100 arch/x86/kernel/jump_label.c:136
__jump_label_update+0x12e/0x400 kernel/jump_label.c:451
jump_label_update+0x32f/0x410 kernel/jump_label.c:830
static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
static_key_disable+0x16/0x20 kernel/jump_label.c:215
toggle_allocation_gate mm/kfence/core.c:778 [inline]
toggle_allocation_gate+0x183/0x390 mm/kfence/core.c:756
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: 74 f2 je 0xfffffff4
2: 48 89 c2 mov %rax,%rdx
5: b8 01 00 00 00 mov $0x1,%eax
a: 48 85 d2 test %rdx,%rdx
d: 75 56 jne 0x65
f: 5b pop %rbx
10: 5d pop %rbp
11: 41 5c pop %r12
13: c3 retq
14: 48 85 d2 test %rdx,%rdx
17: 74 5e je 0x77
19: 48 01 ea add %rbp,%rdx
1c: eb 09 jmp 0x27
1e: 48 83 c0 01 add $0x1,%rax
22: 48 39 d0 cmp %rdx,%rax
25: 74 50 je 0x77
27: 80 38 00 cmpb $0x0,(%rax)
* 2a: 74 f2 je 0x1e <-- trapping instruction
2c: eb d4 jmp 0x2
2e: 41 bc 08 00 00 00 mov $0x8,%r12d
34: 48 89 ea mov %rbp,%rdx
37: 45 29 dc sub %r11d,%r12d
3a: 4d 8d 1c 2c lea (%r12,%rbp,1),%r11
3e: eb 0c jmp 0x4c