INFO: task syz-executor.1:8200 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller-00003-g6a5695213ee6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25608 pid:8200 ppid:5351 flags:0x00004004
Call Trace:
__schedule+0x187b/0x4900
schedule+0xc3/0x180
find_inode_fast+0x319/0x450
iget_locked+0xcb/0x830
__ext4_iget+0x261/0x3f30
ext4_xattr_set_entry+0x21bb/0x3c70
ext4_xattr_block_set+0xb12/0x3680
ext4_xattr_set_handle+0xcd4/0x15c0
ext4_xattr_set+0x241/0x3d0
__vfs_setxattr+0x460/0x4a0
__vfs_setxattr_noperm+0x12e/0x5e0
vfs_setxattr+0x221/0x420
setxattr+0x25d/0x2f0
path_setxattr+0x1c0/0x2a0
__x64_sys_setxattr+0xbb/0xd0
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7c5c68c0c9
RSP: 002b:00007f7c5d49c168 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f7c5c7ac050 RCX: 00007f7c5c68c0c9
RDX: 00000000200005c0 RSI: 0000000020000180 RDI: 00000000200000c0
RBP: 00007f7c5c6e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcdc6e5a4f R14: 00007f7c5d49c300 R15: 0000000000022000
INFO: task syz-executor.1:8207 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller-00003-g6a5695213ee6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25640 pid:8207 ppid:5351 flags:0x00004004
Call Trace:
__schedule+0x187b/0x4900
schedule+0xc3/0x180
mb_cache_entry_wait_unused+0x166/0x250
ext4_evict_ea_inode+0x14a/0x2f0
ext4_evict_inode+0x184/0xf20
evict+0x2a4/0x620
ext4_xattr_set_entry+0x13d4/0x3c70
ext4_xattr_block_set+0x69c/0x3680
ext4_xattr_set_handle+0xcd4/0x15c0
ext4_xattr_set+0x241/0x3d0
__vfs_setxattr+0x460/0x4a0
__vfs_setxattr_noperm+0x12e/0x5e0
vfs_setxattr+0x221/0x420
setxattr+0x25d/0x2f0
path_setxattr+0x1c0/0x2a0
__x64_sys_setxattr+0xbb/0xd0
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7c5c68c0c9
RSP: 002b:00007f7c5d47b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f7c5c7ac120 RCX: 00007f7c5c68c0c9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 00000000200001c0
RBP: 00007f7c5c6e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcdc6e5a4f R14: 00007f7c5d47b300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf26db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27170 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20
2 locks held by kworker/1:0/22:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0
#1: ffffc900001c7d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0
2 locks held by kworker/1:1/26:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0
#1: ffffc90000a1fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0
1 lock held by khungtaskd/28:
#0: ffffffff8cf26be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by udevd/4432:
2 locks held by getty/4731:
#0: ffff88814a8bc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0
3 locks held by kworker/0:4/4991:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0
#1: ffffc9000441fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0
#2: ffffffff8cf2c2b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890
2 locks held by kworker/1:6/5407:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0
#1: ffffc90005cf7d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0
2 locks held by kworker/0:6/5463:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0
#1: ffffc90005db7d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0
3 locks held by kworker/u4:8/5565:
3 locks held by syz-executor.1/8200:
#0: ffff888067b76460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90
#1: ffff888069d19800 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: vfs_setxattr+0x1e1/0x420
#2: ffff888069d194c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x274/0x15c0
3 locks held by syz-executor.1/8207:
#0: ffff888067b76460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90
#1: ffff888069dfc000 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x1e1/0x420
#2: ffff888069dfbcc8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x274/0x15c0
1 lock held by udevd/8272:
1 lock held by udevd/8357:
#0: ffff8880b983c198 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc2-syzkaller-00003-g6a5695213ee6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
dump_stack_lvl+0x1e7/0x2d0
nmi_cpu_backtrace+0x498/0x4d0
nmi_trigger_cpumask_backtrace+0x187/0x2e0
watchdog+0xec2/0xf00
kthread+0x2b2/0x350
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4432 Comm: udevd Not tainted 6.4.0-rc2-syzkaller-00003-g6a5695213ee6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:lock_release+0x27c/0x9d0
Code: c0 0f 84 12 02 00 00 4d 85 ff 0f 84 27 03 00 00 49 8d 5f 24 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 <84> c0 0f 85 01 05 00 00 83 3b 00 0f 85 1a 04 00 00 4d 8d 67 20 4c
RSP: 0018:ffffc9000317f460 EFLAGS: 00000803
RAX: 0000000000000000 RBX: ffff88807d06c66c RCX: ffffc9000317f403
RDX: 0000000000000000 RSI: ffffffff8cf26be0 RDI: ffff88807d06c648
RBP: ffffc9000317f590 R08: dffffc0000000000 R09: fffffbfff1ca9e56
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88807d06c648
FS: 00007f2005978c80(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faa2ad85058 CR3: 000000002a46c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mntput_no_expire+0x1fd/0x770
step_into+0x3a1/0x1080
link_path_walk+0x735/0xe70
path_openat+0x241/0x3170
do_filp_open+0x234/0x490
do_sys_openat2+0x13f/0x500
__x64_sys_openat+0x247/0x290
do_syscall_64+0x41/0xc0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f200551a477
Code: 10 00 00 00 44 8b 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 82 69 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff63908e98 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055c0d0ce44c0 RCX: 00007f200551a477
RDX: 0000000000090800 RSI: 000055c0d0cc8b30 RDI: 00000000ffffff9c
RBP: 000055c0d0d1f740 R08: 0000000000090800 R09: 000055c0d0cc8b30
R10: 0000000000000000 R11: 0000000000000287 R12: 000055c0d0cc8b30
R13: 00000000000000fd R14: 000055c0cf9201c4 R15: 0000000000000000