INFO: task syz.3.853:8849 blocked for more than 144 seconds.
Not tainted 6.13.0-syzkaller-00164-g100ceb4817a2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.853 state:D stack:26208 pid:8849 tgid:8849 ppid:6289 flags:0x20000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
raw_release+0x1b8/0x8b0 net/can/raw.c:415
__sock_release net/socket.c:640 [inline]
sock_close+0xbc/0x240 net/socket.c:1408
__fput+0x23c/0xa50 fs/file_table.c:450
task_work_run+0x24f/0x310 kernel/task_work.c:239
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:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
__do_fast_syscall_32+0xc4/0x110 arch/x86/entry/common.c:389
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf709d579
RSP: 002b:00000000f752fafc EFLAGS: 00000206 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000000001e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
4 locks held by kworker/u8:2/35:
4 locks held by kworker/u8:3/52:
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline]
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3317
#1: ffffc90000bc7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline]
#1: ffffc90000bc7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3317
#2: ffffffff8fcadd90 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x16a/0xd50 net/core/net_namespace.c:602
#3: ffffffff8e93d180 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4565
3 locks held by kworker/u8:7/3442:
1 lock held by klogd/5194:
5 locks held by udevd/5205:
3 locks held by dhcpcd/5499:
2 locks held by getty/5588:
#0: ffff88814d9bd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
2 locks held by syz-executor/5821:
3 locks held by kworker/0:6/5902:
1 lock held by syz-executor/6289:
#0: ffffffff8e93d2b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#0: ffffffff8e93d2b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
1 lock held by syz-executor/6499:
#0: ffffffff8fdf3d08 (ebt_mutex){+.+.}-{4:4}, at: find_inlist_lock_noload+0x4d/0x270 net/bridge/netfilter/ebtables.c:328
2 locks held by syz-executor/7016:
3 locks held by syz-executor/7257:
3 locks held by syz-executor/8171:
2 locks held by syz-executor/8859:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-syzkaller-00164-g100ceb4817a2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5205 Comm: udevd Not tainted 6.13.0-syzkaller-00164-g100ceb4817a2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:__lock_acquire+0x12be/0x2100 kernel/locking/lockdep.c:5223
Code: 10 8b 18 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 80 38 2b 94 be 08 00 00 00 e8 ba 24 8b 00 48 0f a3 1d d2 69 b0 12 <73> 1d 48 69 c3 c8 00 00 00 48 8d 98 40 b7 c2 93 48 ba 00 00 00 00
RSP: 0018:ffffc900030e6cf0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 000000000000002c RCX: ffffffff817acea6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff942b3880
RBP: 2777b6bc7722bbd7 R08: ffffffff942b3887 R09: 1ffffffff2856710
R10: dffffc0000000000 R11: fffffbfff2856711 R12: ffff88806e450000
R13: ffff88806e450000 R14: 1ffff1100dc8a174 R15: 0000000000000000
FS: 00007fa5145c3c80(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f73e8b34 CR3: 000000003423c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
put_cpu_partial+0x91/0x250 mm/slub.c:3204
__slab_free+0x290/0x380 mm/slub.c:4483
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4119 [inline]
slab_alloc_node mm/slub.c:4168 [inline]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175
ptlock_alloc+0x20/0x70 mm/memory.c:6955
ptlock_init include/linux/mm.h:2971 [inline]
pagetable_pte_ctor include/linux/mm.h:2998 [inline]
__pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline]
pte_alloc_one+0xd3/0x510 arch/x86/mm/pgtable.c:33
__pte_alloc+0x79/0x3c0 mm/memory.c:446
copy_pte_range mm/memory.c:1106 [inline]
copy_pmd_range+0x6fb4/0x77a0 mm/memory.c:1261
copy_pud_range mm/memory.c:1298 [inline]
copy_p4d_range mm/memory.c:1322 [inline]
copy_page_range+0x99f/0xe90 mm/memory.c:1420
dup_mmap kernel/fork.c:748 [inline]
dup_mm kernel/fork.c:1691 [inline]
copy_mm+0x1126/0x1fd0 kernel/fork.c:1743
copy_process+0x1845/0x3d50 kernel/fork.c:2394
kernel_clone+0x226/0x8e0 kernel/fork.c:2806
__do_sys_clone kernel/fork.c:2949 [inline]
__se_sys_clone kernel/fork.c:2933 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2933
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: 0033:0x7fa5140fca12
Code: 41 5d 41 5e 41 5f c3 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffc3fa68ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000055ff622f5701 RCX: 00007fa5140fca12
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000009 R08: 0000000000000000 R09: 000055ff622ed910
R10: 00007fa5145c3f50 R11: 0000000000000246 R12: 000055ff62313d30
R13: 0000000000000000 R14: 0000000000000000 R15: 000055ff622ed910