INFO: task syz-executor253:3829 blocked for more than 143 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor253 state:D stack:27344 pid: 3829 ppid: 3628 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
kthread_stop+0x17a/0x720 kernel/kthread.c:708
ext4_stop_mmpd+0x47/0xd0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5450 [inline]
ext4_fill_super+0x9dd6/0xe860 fs/ext4/super.c:5499
get_tree_bdev+0x440/0x760 fs/super.c:1292
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+0x46/0xb0
RIP: 0033:0x7efcaceab1ba
RSP: 002b:00007ffea7abb9d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffea7abba30 RCX: 00007efcaceab1ba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffea7abb9f0
RBP: 00007ffea7abb9f0 R08: 00007ffea7abba30 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000308
R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000000b
INFO: task syz-executor253:4038 blocked for more than 143 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor253 state:D stack:27344 pid: 4038 ppid: 3624 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
kthread_stop+0x17a/0x720 kernel/kthread.c:708
ext4_stop_mmpd+0x47/0xd0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5450 [inline]
ext4_fill_super+0x9dd6/0xe860 fs/ext4/super.c:5499
get_tree_bdev+0x440/0x760 fs/super.c:1292
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+0x46/0xb0
RIP: 0033:0x7efcaceab1ba
RSP: 002b:00007ffea7abb9d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffea7abba30 RCX: 00007efcaceab1ba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffea7abb9f0
RBP: 00007ffea7abb9f0 R08: 00007ffea7abba30 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000308
R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000000b
INFO: task syz-executor253:4064 blocked for more than 143 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor253 state:D stack:27344 pid: 4064 ppid: 3626 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
kthread_stop+0x17a/0x720 kernel/kthread.c:708
ext4_stop_mmpd+0x47/0xd0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5450 [inline]
ext4_fill_super+0x9dd6/0xe860 fs/ext4/super.c:5499
get_tree_bdev+0x440/0x760 fs/super.c:1292
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+0x46/0xb0
RIP: 0033:0x7efcaceab1ba
RSP: 002b:00007ffea7abb9d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffea7abba30 RCX: 00007efcaceab1ba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffea7abb9f0
RBP: 00007ffea7abb9f0 R08: 00007ffea7abba30 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000308
R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000000b
INFO: task syz-executor253:4253 blocked for more than 144 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor253 state:D stack:27344 pid: 4253 ppid: 3627 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
kthread_stop+0x17a/0x720 kernel/kthread.c:708
ext4_stop_mmpd+0x47/0xd0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5450 [inline]
ext4_fill_super+0x9dd6/0xe860 fs/ext4/super.c:5499
get_tree_bdev+0x440/0x760 fs/super.c:1292
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+0x46/0xb0
RIP: 0033:0x7efcaceab1ba
RSP: 002b:00007ffea7abb9d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffea7abba30 RCX: 00007efcaceab1ba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffea7abb9f0
RBP: 00007ffea7abb9f0 R08: 00007ffea7abba30 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000308
R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000000b
INFO: task syz-executor253:4260 blocked for more than 144 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor253 state:D stack:27344 pid: 4260 ppid: 3625 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
kthread_stop+0x17a/0x720 kernel/kthread.c:708
ext4_stop_mmpd+0x47/0xd0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5450 [inline]
ext4_fill_super+0x9dd6/0xe860 fs/ext4/super.c:5499
get_tree_bdev+0x440/0x760 fs/super.c:1292
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+0x46/0xb0
RIP: 0033:0x7efcaceab1ba
RSP: 002b:00007ffea7abb9d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffea7abba30 RCX: 00007efcaceab1ba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffea7abb9f0
RBP: 00007ffea7abb9f0 R08: 00007ffea7abba30 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000308
R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000000b
INFO: task syz-executor253:4266 blocked for more than 144 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor253 state:D stack:27344 pid: 4266 ppid: 3629 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
kthread_stop+0x17a/0x720 kernel/kthread.c:708
ext4_stop_mmpd+0x47/0xd0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5450 [inline]
ext4_fill_super+0x9dd6/0xe860 fs/ext4/super.c:5499
get_tree_bdev+0x440/0x760 fs/super.c:1292
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+0x46/0xb0
RIP: 0033:0x7efcaceab1ba
RSP: 002b:00007ffea7abb9d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffea7abba30 RCX: 00007efcaceab1ba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffea7abb9f0
RBP: 00007ffea7abb9f0 R08: 00007ffea7abba30 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000308
R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000000b
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8bd84020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
5 locks held by kworker/u4:5/1239:
#0: ffff8880b9b39fd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:544
#1: ffff8880b9b277c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x176/0x4e0 kernel/sched/psi.c:880
#2: ffff8880b9b28398 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:999
#3: ffffffff91188c10 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:658
#4: ffffffff8bc4c888 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0xe/0x20 arch/x86/kernel/jump_label.c:145
2 locks held by getty/3287:
#0: ffff88814b13a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90001c482e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
1 lock held by syz-executor253/3829:
#0: ffff88807398c0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228
1 lock held by syz-executor253/4038:
#0: ffff8880275540e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228
1 lock held by syz-executor253/4064:
#0: ffff88807e3940e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228
1 lock held by syz-executor253/4253:
#0: ffff88801c4c40e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228
1 lock held by syz-executor253/4260:
#0: ffff88807309a0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228
1 lock held by syz-executor253/4266:
#0: ffff8880230fe0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #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:220 [inline]
watchdog+0xc22/0xf90 kernel/hung_task.c:378
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1239 Comm: kworker/u4:5 Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_preemption_disabled+0x22/0x170 lib/smp_processor_id.c:16
Code: e9 23 ff ff ff cc cc cc 41 56 41 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 25 4a 8b 76 65 8b 1d 8e 9f 8b 76 <81> e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db 74 11 0f 1f 44
RSP: 0018:ffffc900059af990 EFLAGS: 00000046
RAX: c3e80a43b67aafd8 RBX: 0000000080000001 RCX: 1ffffffff20d03be
RDX: 0000000000000000 RSI: ffffffff89cc63e0 RDI: ffffffff8a282c40
RBP: ffffffff8a282c40 R08: 0000000000000001 R09: ffffffff9067a917
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff89cc63e0 R14: 0000000000000ade R15: ffffffff8bec14c0
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f677ff5000 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_hardirqs_on+0x79/0x100 kernel/locking/lockdep.c:4381
__text_poke+0x6df/0x8e0 arch/x86/kernel/alternative.c:1112
text_poke arch/x86/kernel/alternative.c:1137 [inline]
text_poke_bp_batch+0x382/0x6c0 arch/x86/kernel/alternative.c:1432
text_poke_flush arch/x86/kernel/alternative.c:1589 [inline]
text_poke_flush arch/x86/kernel/alternative.c:1586 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1596
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32f/0x410 kernel/jump_label.c:830
static_key_enable_cpuslocked+0x1b1/0x260 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate mm/kfence/core.c:808 [inline]
toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:800
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:302
----------------
Code disassembly (best guess):
0: e9 23 ff ff ff jmpq 0xffffff28
5: cc int3
6: cc int3
7: cc int3
8: 41 56 push %r14
a: 41 55 push %r13
c: 49 89 f5 mov %rsi,%r13
f: 41 54 push %r12
11: 55 push %rbp
12: 48 89 fd mov %rdi,%rbp
15: 53 push %rbx
16: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
1b: 65 44 8b 25 25 4a 8b mov %gs:0x768b4a25(%rip),%r12d # 0x768b4a48
22: 76
23: 65 8b 1d 8e 9f 8b 76 mov %gs:0x768b9f8e(%rip),%ebx # 0x768b9fb8
* 2a: 81 e3 ff ff ff 7f and $0x7fffffff,%ebx <-- trapping instruction
30: 31 ff xor %edi,%edi
32: 89 de mov %ebx,%esi
34: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
39: 85 db test %ebx,%ebx
3b: 74 11 je 0x4e
3d: 0f .byte 0xf
3e: 1f (bad)
3f: 44 rex.R