=============================
[ BUG: Invalid wait context ]
6.13.0-rc6-syzkaller-00046-g0b7958fa05d5 #0 Not tainted
-----------------------------
udevd/6007 is trying to lock:
ffff8880212040d8 (&sighand->siglock){-.-.}-{3:3}, at: __lock_task_sighand+0xc2/0x340 kernel/signal.c:1379
other info that might help us debug this:
context-{5:5}
5 locks held by udevd/6007:
 #0: ffff88802b172420 (sb_writers#5){.+.+}-{0:0}, at: do_rmdir+0x1e4/0x410 fs/namei.c:4437
 #1: ffff88804bc0f1d0 (&type->i_mutex_dir_key#5/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline]
 #1: ffff88804bc0f1d0 (&type->i_mutex_dir_key#5/1){+.+.}-{4:4}, at: do_rmdir+0x235/0x410 fs/namei.c:4441
 #2: ffff88802aea8490 (&sbinfo->stat_lock){+.+.}-{2:2}, at: shmem_free_inode mm/shmem.c:419 [inline]
 #2: ffff88802aea8490 (&sbinfo->stat_lock){+.+.}-{2:2}, at: shmem_evict_inode+0x2c9/0xba0 mm/shmem.c:1306
 #3: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #3: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #3: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2361 [inline]
 #3: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run2+0x1c2/0x590 kernel/trace/bpf_trace.c:2403
 #4: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #4: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #4: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: __lock_task_sighand+0x3f/0x340 kernel/signal.c:1362
stack backtrace:
CPU: 0 UID: 0 PID: 6007 Comm: udevd Not tainted 6.13.0-rc6-syzkaller-00046-g0b7958fa05d5 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline]
 check_wait_context kernel/locking/lockdep.c:4898 [inline]
 __lock_acquire+0x878/0x3c40 kernel/locking/lockdep.c:5176
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
 __lock_task_sighand+0xc2/0x340 kernel/signal.c:1379
 lock_task_sighand include/linux/sched/signal.h:743 [inline]
 do_send_sig_info kernel/signal.c:1267 [inline]
 group_send_sig_info+0x290/0x300 kernel/signal.c:1418
 bpf_send_signal_common+0x415/0x520 kernel/trace/bpf_trace.c:881
 ____bpf_send_signal kernel/trace/bpf_trace.c:886 [inline]
 bpf_send_signal+0x1d/0x30 kernel/trace/bpf_trace.c:884
 bpf_prog_631417f49dd64198+0x25/0x48
 bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2362 [inline]
 bpf_trace_run2+0x231/0x590 kernel/trace/bpf_trace.c:2403
 __traceiter_contention_end+0x5a/0xa0 include/trace/events/lock.h:122
 trace_contention_end.constprop.0+0xf0/0x170 include/trace/events/lock.h:122
 __pv_queued_spin_lock_slowpath+0x27e/0xc90 kernel/locking/qspinlock.c:557
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x210/0x2c0 kernel/locking/spinlock_debug.c:116
 shmem_free_inode mm/shmem.c:419 [inline]
 shmem_evict_inode+0x2c9/0xba0 mm/shmem.c:1306
 evict+0x409/0x960 fs/inode.c:796
 iput_final fs/inode.c:1946 [inline]
 iput fs/inode.c:1972 [inline]
 iput+0x52a/0x890 fs/inode.c:1958
 d_delete_notify include/linux/fsnotify.h:332 [inline]
 vfs_rmdir fs/namei.c:4407 [inline]
 vfs_rmdir+0x487/0x690 fs/namei.c:4371
 do_rmdir+0x3a2/0x410 fs/namei.c:4453
 __do_sys_rmdir fs/namei.c:4472 [inline]
 __se_sys_rmdir fs/namei.c:4470 [inline]
 __x64_sys_rmdir+0xc5/0x110 fs/namei.c:4470
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7795517e07
Code: 73 01 c3 48 8b 0d 21 90 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 54 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f1 8f 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd965957e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007ffd96595c18 RCX: 00007f7795517e07
RDX: 0000000000000000 RSI: 000055abc5ba9177 RDI: 00007ffd96595c18
RBP: 00007ffd96596418 R08: 000055abc5ba9170 R09: 0000000000000000
R10: 0000000000000010 R11: 0000000000000246 R12: 00007ffd96595818
R13: 000055abc5bb4b40 R14: 000055abc5ba0b00 R15: 0000000000000000
 </TASK>