INFO: task udevd:5823 blocked for more than 143 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24256 pid:5823 tgid:5823 ppid:5197 task_flags:0x400140 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
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: 0033:0x7fd66d197d49
RSP: 002b:00007ffec7999df8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd66d197d49
RDX: 00007ffec7999e08 RSI: 0000000090009427 RDI: 0000000000000009
RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec799ae48 R14: 00005618bf95ae80 R15: 00007ffec799bb68
INFO: task udevd:5841 blocked for more than 144 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24088 pid:5841 tgid:5841 ppid:5197 task_flags:0x400140 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
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: 0033:0x7fd66d197d49
RSP: 002b:00007ffec7999df8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd66d197d49
RDX: 00007ffec7999e08 RSI: 0000000090009427 RDI: 0000000000000009
RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffec799ae48 R14: 00005618bf95ae80 R15: 00007ffec799bb68
INFO: task syz.1.58:6765 blocked for more than 144 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.58 state:D stack:27392 pid:6765 tgid:6693 ppid:5832 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
inode_lock_shared include/linux/fs.h:887 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1809
walk_component+0x2e1/0x410 fs/namei.c:2114
lookup_last fs/namei.c:2612 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2636
filename_lookup+0x2a3/0x670 fs/namei.c:2665
kern_path+0x35/0x50 fs/namei.c:2773
is_good_dev_path fs/btrfs/volumes.c:764 [inline]
btrfs_scan_one_device+0x1a8/0xec0 fs/btrfs/volumes.c:1523
btrfs_control_ioctl+0x165/0x410 fs/btrfs/super.c:2243
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
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: 0033:0x7f7cb338d169
RSP: 002b:00007f7cb4108038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7cb35a6080 RCX: 00007f7cb338d169
RDX: 0000400000000040 RSI: 0000000090009427 RDI: 0000000000000009
RBP: 00007f7cb340e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7cb35a6080 R15: 00007ffc8988e9f8
INFO: task syz.1.58:6767 blocked for more than 145 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.58 state:D stack:23088 pid:6767 tgid:6693 ppid:5832 task_flags:0x400040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
inode_lock_shared include/linux/fs.h:887 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1809
walk_component+0x2e1/0x410 fs/namei.c:2114
lookup_last fs/namei.c:2612 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2636
filename_lookup+0x2a3/0x670 fs/namei.c:2665
user_path_at+0x3a/0x60 fs/namei.c:3072
do_mount fs/namespace.c:3897 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x297/0x3c0 fs/namespace.c:4088
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: 0033:0x7f7cb338d169
RSP: 002b:00007f7cb1065038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7cb35a6160 RCX: 00007f7cb338d169
RDX: 0000400000000080 RSI: 0000400000000040 RDI: 0000000000000000
RBP: 00007f7cb340e2a0 R08: 0000400000000100 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7cb35a6160 R15: 00007ffc8988e9f8
INFO: task syz.1.58:6772 blocked for more than 145 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.58 state:D stack:27392 pid:6772 tgid:6693 ppid:5832 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:877 [inline]
open_last_lookups fs/namei.c:3747 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3986
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
do_sys_openat2+0x13e/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_openat fs/open.c:1459 [inline]
__se_sys_openat fs/open.c:1454 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1454
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: 0033:0x7f7cb338d169
RSP: 002b:00007f7cb0c42038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f7cb35a6240 RCX: 00007f7cb338d169
RDX: 0000000000000441 RSI: 0000400000000080 RDI: ffffffffffffff9c
RBP: 00007f7cb340e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000104 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7cb35a6240 R15: 00007ffc8988e9f8
INFO: task syz.1.58:6775 blocked for more than 146 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.58 state:D stack:27552 pid:6775 tgid:6693 ppid:5832 task_flags:0x400040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:877 [inline]
open_last_lookups fs/namei.c:3747 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3986
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
do_sys_openat2+0x13e/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_creat fs/open.c:1521 [inline]
__se_sys_creat fs/open.c:1515 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1515
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: 0033:0x7f7cb338d169
RSP: 002b:00007f7cb081f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f7cb35a6320 RCX: 00007f7cb338d169
RDX: 0000000000000000 RSI: 000000000000001c RDI: 0000400000000300
RBP: 00007f7cb340e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f7cb35a6320 R15: 00007ffc8988e9f8
INFO: task syz.1.58:6783 blocked for more than 146 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.58 state:D stack:27392 pid:6783 tgid:6693 ppid:5832 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:877 [inline]
open_last_lookups fs/namei.c:3747 [inline]
path_openat+0x89a/0x3590 fs/namei.c:3986
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
do_sys_openat2+0x13e/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_openat fs/open.c:1459 [inline]
__se_sys_openat fs/open.c:1454 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1454
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: 0033:0x7f7cb338d169
RSP: 002b:00007f7caffd9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f7cb35a64e0 RCX: 00007f7cb338d169
RDX: 000000000000275a RSI: 0000400000000000 RDI: ffffffffffffff9c
RBP: 00007f7cb340e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7cb35a64e0 R15: 00007ffc8988e9f8
INFO: task syz.4.71:6842 blocked for more than 146 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.71 state:D stack:23600 pid:6842 tgid:6840 ppid:5820 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
fc_mount+0x1b/0xb0 fs/namespace.c:1271
btrfs_get_tree_subvol fs/btrfs/super.c:2051 [inline]
btrfs_get_tree+0x6b1/0x1a30 fs/btrfs/super.c:2094
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
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: 0033:0x7f369c18e90a
RSP: 002b:00007f369d05ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f369d05aef0 RCX: 00007f369c18e90a
RDX: 0000400000005100 RSI: 0000400000000000 RDI: 00007f369d05aeb0
RBP: 0000400000005100 R08: 00007f369d05aef0 R09: 0000000000000810
R10: 0000000000000810 R11: 0000000000000246 R12: 0000400000000000
R13: 00007f369d05aeb0 R14: 00000000000050f3 R15: 00004000000001c0
INFO: task syz.2.80:6934 blocked for more than 147 seconds.
Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.80 state:D stack:23872 pid:6934 tgid:6933 ppid:6105 task_flags:0x400140 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x817/0x1010 kernel/locking/mutex.c:730
btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
fc_mount+0x1b/0xb0 fs/namespace.c:1271
btrfs_get_tree_subvol fs/btrfs/super.c:2051 [inline]
btrfs_get_tree+0x6b1/0x1a30 fs/btrfs/super.c:2094
vfs_get_tree+0x90/0x2b0 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3560
do_mount fs/namespace.c:3900 [inline]
__do_sys_mount fs/namespace.c:4111 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
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: 0033:0x7f83a478e90a
RSP: 002b:00007f83a5683e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f83a5683ef0 RCX: 00007f83a478e90a
RDX: 0000400000000000 RSI: 0000400000000040 RDI: 00007f83a5683eb0
RBP: 0000400000000000 R08: 00007f83a5683ef0 R09: 0000000000800810
R10: 0000000000800810 R11: 0000000000000246 R12: 0000400000000040
R13: 00007f83a5683eb0 R14: 00000000000050f9 R15: 0000400000000240
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8eb38fa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8eb38fa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8eb38fa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6746
3 locks held by kworker/u8:2/35:
5 locks held by kworker/u8:5/1089:
#0: ffff88801bef3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff88801bef3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319
#1: ffffc90003c8fc60 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90003c8fc60 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319
#2: ffffffff8feb6b90 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x17a/0xd60 net/core/net_namespace.c:606
#3: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0xdc/0x880 net/core/dev.c:12417
#4: ffffffff8eb3e478 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:302 [inline]
#4: ffffffff8eb3e478 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x820 kernel/rcu/tree_exp.h:996
3 locks held by kworker/u8:7/1162:
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff88801b089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319
#1: ffffc90003f5fc60 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc90003f5fc60 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319
#2: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:285
3 locks held by kworker/u8:9/4929:
#0: ffff888030546148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
#0: ffff888030546148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 kernel/workqueue.c:3319
#1: ffffc9000f9b7c60 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
#1: ffffc9000f9b7c60 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 kernel/workqueue.c:3319
#2: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
#2: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4730
1 lock held by dhcpcd/5491:
#0: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
#0: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80 net/ipv4/devinet.c:1129
2 locks held by getty/5582:
#0: ffff888031b7b0a0 (&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+0x616/0x1770 drivers/tty/n_tty.c:2211
1 lock held by udevd/5821:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
1 lock held by udevd/5823:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
1 lock held by udevd/5841:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
1 lock held by udevd/5842:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
5 locks held by syz.1.58/6694:
#0: ffff88807aa16420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3986
#2: ffff8880585f1bf8 (&inode->ei_update_lock){+.+.}-{4:4}, at: __bch2_create+0x355/0xf40 fs/bcachefs/fs.c:550
#3: ffff888053184378 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:164 [inline]
#3: ffff888053184378 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:256 [inline]
#3: ffff888053184378 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e4/0xd30 fs/bcachefs/btree_iter.c:3408
#4: ffff8880531a66d0 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x680/0x1540 fs/bcachefs/btree_update_interior.c:1182
2 locks held by syz.1.58/6765:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:887 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: lookup_slow+0x45/0x70 fs/namei.c:1809
1 lock held by syz.1.58/6767:
#0: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:887 [inline]
#0: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: lookup_slow+0x45/0x70 fs/namei.c:1809
2 locks held by syz.1.58/6772:
#0: ffff88807aa16420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3986
2 locks held by syz.1.58/6775:
#0: ffff88807aa16420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3986
2 locks held by syz.1.58/6783:
#0: ffff88807aa16420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline]
#1: ffff8880585f1810 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3986
2 locks held by bch-copygc/loop/6761:
1 lock held by syz.4.71/6842:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by syz.2.80/6934:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by udevd/6984:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
1 lock held by syz.0.85/7061:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by syz.7.106/7339:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by syz.8.107/7341:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by udevd/7365:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
1 lock held by udevd/7442:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_control_ioctl+0x150/0x410 fs/btrfs/super.c:2238
1 lock held by syz.9.112/7458:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by syz.3.117/7527:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by syz.6.160/8158:
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree_super fs/btrfs/super.c:1841 [inline]
#0: ffffffff8f0c9628 (uuid_mutex){+.+.}-{4:4}, at: btrfs_get_tree+0x309/0x1a30 fs/btrfs/super.c:2093
1 lock held by syz-executor/9090:
#0: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#0: ffffffff8fec33c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc55/0x1d30 net/core/rtnetlink.c:4021
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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:236 [inline]
watchdog+0x1058/0x10a0 kernel/hung_task.c:399
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
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: 5808 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-00016-g48a5eed9ad58 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__cpu_to_node+0x7c/0xe0 arch/x86/mm/numa.c:341
Code: 3c 38 00 74 08 48 89 df e8 71 3d b6 00 49 c7 c6 10 86 02 00 4c 03 33 4c 89 f0 48 c1 e8 03 42 0f b6 04 38 84 c0 75 35 41 8b 06 <5b> 41 5e 41 5f c3 cc cc cc cc e8 05 89 51 00 48 c7 c7 40 7b 28 8c
RSP: 0018:ffffc900040dfd80 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8e53bb50 RCX: ffff888036c69e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: ffffc900040dfec8 R08: ffffffff81703563 R09: 1ffffffff20778ee
R10: dffffc0000000000 R11: fffffbfff20778ef R12: 00005555809f6e20
R13: ffff888036c69e00 R14: ffff8880b8628610 R15: dffffc0000000000
FS: 00005555809f6500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005618bf959068 CR3: 000000007b65a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rseq_update_cpu_node_id kernel/rseq.c:165 [inline]
__rseq_handle_notify_resume+0x1fe/0x14e0 kernel/rseq.c:420
rseq_handle_notify_resume include/linux/rseq.h:38 [inline]
resume_user_mode_work include/linux/resume_user_mode.h:62 [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+0x115/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fea9ddbf9e3
Code: 1f 84 00 00 00 00 00 83 ff 03 74 7b 83 ff 02 b8 fa ff ff ff 49 89 ca 0f 44 f8 80 3d 5e db 1b 00 00 74 14 b8 e6 00 00 00 0f 05 d8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 54 24 10
RSP: 002b:00007ffddc2c3588 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fea9ddbf9e3
RDX: 00007ffddc2c35a0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000132d79ee R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffddc2c39f0
R13: 0000000000000004 R14: 00007ffddc2c35dc R15: 00007ffddc2c3670