------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.1.84-syzkaller #0 Not tainted
------------------------------------------------------
udevd/13436 is trying to acquire lock:
ffffffff8d006b38 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:139

but task is already holding lock:
ffff8880b993aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&rq->__lock){-.-.}-{2:2}:
       lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
       _raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
       raw_spin_rq_lock kernel/sched/sched.h:1354 [inline]
       rq_lock kernel/sched/sched.h:1644 [inline]
       task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11869
       sched_cgroup_fork+0x374/0x400 kernel/sched/core.c:4686
       copy_process+0x2442/0x4060 kernel/fork.c:2384
       kernel_clone+0x222/0x920 kernel/fork.c:2682
       user_mode_thread+0x12e/0x190 kernel/fork.c:2758
       rest_init+0x23/0x300 init/main.c:697
       start_kernel+0x0/0x53f init/main.c:892
       start_kernel+0x496/0x53f init/main.c:1139
       secondary_startup_64_no_verify+0xcf/0xdb

-> #1 (&p->pi_lock){-.-.}-{2:2}:
       lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       try_to_wake_up+0xad/0x12e0 kernel/sched/core.c:4112
       up+0x6e/0x90 kernel/locking/semaphore.c:191
       __up_console_sem+0x11a/0x1e0 kernel/printk/printk.c:260
       __console_unlock kernel/printk/printk.c:2697 [inline]
       console_unlock+0x591/0x7c0 kernel/printk/printk.c:2908
       vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303
       dev_vprintk_emit+0x2aa/0x323 drivers/base/core.c:4902
       dev_printk_emit+0xd9/0x118 drivers/base/core.c:4913
       _dev_warn+0x11e/0x165 drivers/base/core.c:4969
       firmware_fallback_sysfs+0x674/0x940 drivers/base/firmware_loader/fallback.c:229
       _request_firmware+0xc13/0x1200 drivers/base/firmware_loader/main.c:856
       request_firmware_work_func+0x126/0x270 drivers/base/firmware_loader/main.c:1105
       process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
       worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
       kthread+0x28d/0x320 kernel/kthread.c:376
       ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307

-> #0 ((console_sem).lock){-.-.}-{2:2}:
       check_prev_add kernel/locking/lockdep.c:3090 [inline]
       check_prevs_add kernel/locking/lockdep.c:3209 [inline]
       validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825
       __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
       lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:139
       __down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:243
       console_trylock kernel/printk/printk.c:2650 [inline]
       console_trylock_spinning kernel/printk/printk.c:1896 [inline]
       vprintk_emit+0x1ee/0x740 kernel/printk/printk.c:2302
       _printk+0xd1/0x111 kernel/printk/printk.c:2328
       __report_bug lib/bug.c:195 [inline]
       report_bug+0x342/0x500 lib/bug.c:219
       handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:324
       exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:345
       asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:568
       __local_bh_enable_ip+0x1b3/0x1f0
       __sock_map_delete net/core/sock_map.c:426 [inline]
       sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448
       bpf_prog_8c0e092b1e199972+0x5b/0x5f
       bpf_dispatcher_nop_func include/linux/bpf.h:989 [inline]
       __bpf_prog_run include/linux/filter.h:603 [inline]
       bpf_prog_run include/linux/filter.h:610 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline]
       bpf_trace_run4+0x253/0x470 kernel/trace/bpf_trace.c:2314
       __traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
       trace_sched_switch include/trace/events/sched.h:222 [inline]
       __schedule+0x2116/0x4550 kernel/sched/core.c:6555
       preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
       irqentry_exit+0x53/0x80 kernel/entry/common.c:439
       asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
       check_kcov_mode kernel/kcov.c:175 [inline]
       write_comp_data kernel/kcov.c:236 [inline]
       __sanitizer_cov_trace_const_cmp1+0x30/0x80 kernel/kcov.c:290
       tomoyo_encode2 security/tomoyo/realpath.c:36 [inline]
       tomoyo_encode+0x14b/0x530 security/tomoyo/realpath.c:80
       tomoyo_realpath_from_path+0x594/0x5d0 security/tomoyo/realpath.c:283
       tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
       tomoyo_path2_perm+0x350/0xb80 security/tomoyo/file.c:922
       tomoyo_path_rename+0x194/0x1e0 security/tomoyo/tomoyo.c:287
       security_path_rename+0x16f/0x210 security/security.c:1217
       do_renameat2+0x991/0x1440 fs/namei.c:5016
       __do_sys_rename fs/namei.c:5075 [inline]
       __se_sys_rename fs/namei.c:5073 [inline]
       __x64_sys_rename+0x82/0x90 fs/namei.c:5073
       do_syscall_x64 arch/x86/entry/common.c:51 [inline]
       do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
       entry_SYSCALL_64_after_hwframe+0x63/0xcd

other info that might help us debug this:

Chain exists of:
  (console_sem).lock --> &p->pi_lock --> &rq->__lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&rq->__lock);
                               lock(&p->pi_lock);
                               lock(&rq->__lock);
  lock((console_sem).lock);

 *** DEADLOCK ***

5 locks held by udevd/13436:
 #0: ffff88807e1c4460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
 #1: ffff88807df12870 (&type->i_mutex_dir_key#5/1){+.+.}-{3:3}, at: do_renameat2+0x65a/0x1440 fs/namei.c:4968
 #2: ffffffff8d7184a8 (tomoyo_ss){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #2: ffffffff8d7184a8 (tomoyo_ss){....}-{0:0}, at: srcu_read_lock include/linux/srcu.h:165 [inline]
 #2: ffffffff8d7184a8 (tomoyo_ss){....}-{0:0}, at: tomoyo_read_lock security/tomoyo/common.h:1110 [inline]
 #2: ffffffff8d7184a8 (tomoyo_ss){....}-{0:0}, at: tomoyo_path2_perm+0x321/0xb80 security/tomoyo/file.c:921
 #3: ffff8880b993aa18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
 #4: ffffffff8d12a980 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #4: ffffffff8d12a980 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #4: ffffffff8d12a980 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2272 [inline]
 #4: ffffffff8d12a980 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16a/0x470 kernel/trace/bpf_trace.c:2314

stack backtrace:
CPU: 1 PID: 13436 Comm: udevd Not tainted 6.1.84-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 check_noncircular+0x2fa/0x3b0 kernel/locking/lockdep.c:2170
 check_prev_add kernel/locking/lockdep.c:3090 [inline]
 check_prevs_add kernel/locking/lockdep.c:3209 [inline]
 validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825
 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:139
 __down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:243
 console_trylock kernel/printk/printk.c:2650 [inline]
 console_trylock_spinning kernel/printk/printk.c:1896 [inline]
 vprintk_emit+0x1ee/0x740 kernel/printk/printk.c:2302
 _printk+0xd1/0x111 kernel/printk/printk.c:2328
 __report_bug lib/bug.c:195 [inline]
 report_bug+0x342/0x500 lib/bug.c:219
 handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:324
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:345
 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:568
RIP: 0010:__local_bh_enable_ip+0x1b3/0x1f0 kernel/softirq.c:376
Code: 04 25 28 00 00 00 48 3b 44 24 60 75 4a 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b e9 d0 fe ff ff e8 3f 00 00 00 eb a2 <0f> 0b e9 02 ff ff ff 48 c7 c1 e4 9e 73 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90003ccf240 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff92000799e4c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff8897f1fb
RBP: ffffc90003ccf2f8 R08: dffffc0000000000 R09: ffffed100f075146
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888023c62480 R14: ffffc90003ccf280 R15: 0000000000000201
 __sock_map_delete net/core/sock_map.c:426 [inline]
 sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448
 bpf_prog_8c0e092b1e199972+0x5b/0x5f
 bpf_dispatcher_nop_func include/linux/bpf.h:989 [inline]
 __bpf_prog_run include/linux/filter.h:603 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline]
 bpf_trace_run4+0x253/0x470 kernel/trace/bpf_trace.c:2314
 __traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2116/0x4550 kernel/sched/core.c:6555
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x30/0x80 kernel/kcov.c:290
Code: 8b 15 e4 e5 77 7e 65 8b 05 e5 e5 77 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba 1c 16 00 00 00 74 52 8b 82 f8 15 00 00 <83> f8 03 75 47 48 8b 8a 00 16 00 00 44 8b 8a fc 15 00 00 49 c1 e1
RSP: 0018:ffffc90003ccf7b0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000061 RCX: dffffc0000000000
RDX: ffff88807bffd940 RSI: 0000000000000040 RDI: 000000000000005e
RBP: 0000000000000040 R08: ffffffff83f3951b R09: fffffbfff1ce6d46
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000000c
R13: 000000000000000b R14: 0000000000000002 R15: ffff8880237f0ff0
 tomoyo_encode2 security/tomoyo/realpath.c:36 [inline]
 tomoyo_encode+0x14b/0x530 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x594/0x5d0 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path2_perm+0x350/0xb80 security/tomoyo/file.c:922
 tomoyo_path_rename+0x194/0x1e0 security/tomoyo/tomoyo.c:287
 security_path_rename+0x16f/0x210 security/security.c:1217
 do_renameat2+0x991/0x1440 fs/namei.c:5016
 __do_sys_rename fs/namei.c:5075 [inline]
 __se_sys_rename fs/namei.c:5073 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5073
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3d42a9a93b
Code: 48 8b 15 f0 64 15 00 83 c8 ff 64 83 3a 15 75 0e 48 8b 7c 24 08 e8 d5 d4 07 00 f7 d8 19 c0 48 83 c4 18 c3 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 be 64 15 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffcfbc0e108 EFLAGS: 00000202 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 000055e823b63101 RCX: 00007f3d42a9a93b
RDX: 000055ed7ab10790 RSI: 00007ffcfbc0e128 RDI: 00007ffcfbc0e528
RBP: 000055e824337aa0 R08: 0000000000000006 R09: c0c9452304dcdb09
R10: 000000000000010f R11: 0000000000000202 R12: 000055e824330ea0
R13: 00007ffcfbc0e128 R14: 00007ffcfbc0e528 R15: 000055e823b4dec8
 </TASK>
WARNING: CPU: 1 PID: 13436 at kernel/softirq.c:376 __local_bh_enable_ip+0x1b3/0x1f0
Modules linked in:
CPU: 1 PID: 13436 Comm: udevd Not tainted 6.1.84-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__local_bh_enable_ip+0x1b3/0x1f0 kernel/softirq.c:376
Code: 04 25 28 00 00 00 48 3b 44 24 60 75 4a 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b e9 d0 fe ff ff e8 3f 00 00 00 eb a2 <0f> 0b e9 02 ff ff ff 48 c7 c1 e4 9e 73 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90003ccf240 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff92000799e4c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff8897f1fb
RBP: ffffc90003ccf2f8 R08: dffffc0000000000 R09: ffffed100f075146
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888023c62480 R14: ffffc90003ccf280 R15: 0000000000000201
FS:  00007f3d42f4ac80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff8da579198 CR3: 000000005ee0c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __sock_map_delete net/core/sock_map.c:426 [inline]
 sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448
 bpf_prog_8c0e092b1e199972+0x5b/0x5f
 bpf_dispatcher_nop_func include/linux/bpf.h:989 [inline]
 __bpf_prog_run include/linux/filter.h:603 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline]
 bpf_trace_run4+0x253/0x470 kernel/trace/bpf_trace.c:2314
 __traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2116/0x4550 kernel/sched/core.c:6555
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x30/0x80 kernel/kcov.c:290
Code: 8b 15 e4 e5 77 7e 65 8b 05 e5 e5 77 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba 1c 16 00 00 00 74 52 8b 82 f8 15 00 00 <83> f8 03 75 47 48 8b 8a 00 16 00 00 44 8b 8a fc 15 00 00 49 c1 e1
RSP: 0018:ffffc90003ccf7b0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000061 RCX: dffffc0000000000
RDX: ffff88807bffd940 RSI: 0000000000000040 RDI: 000000000000005e
RBP: 0000000000000040 R08: ffffffff83f3951b R09: fffffbfff1ce6d46
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000000c
R13: 000000000000000b R14: 0000000000000002 R15: ffff8880237f0ff0
 tomoyo_encode2 security/tomoyo/realpath.c:36 [inline]
 tomoyo_encode+0x14b/0x530 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x594/0x5d0 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path2_perm+0x350/0xb80 security/tomoyo/file.c:922
 tomoyo_path_rename+0x194/0x1e0 security/tomoyo/tomoyo.c:287
 security_path_rename+0x16f/0x210 security/security.c:1217
 do_renameat2+0x991/0x1440 fs/namei.c:5016
 __do_sys_rename fs/namei.c:5075 [inline]
 __se_sys_rename fs/namei.c:5073 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5073
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3d42a9a93b
Code: 48 8b 15 f0 64 15 00 83 c8 ff 64 83 3a 15 75 0e 48 8b 7c 24 08 e8 d5 d4 07 00 f7 d8 19 c0 48 83 c4 18 c3 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 be 64 15 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffcfbc0e108 EFLAGS: 00000202 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 000055e823b63101 RCX: 00007f3d42a9a93b
RDX: 000055ed7ab10790 RSI: 00007ffcfbc0e128 RDI: 00007ffcfbc0e528
RBP: 000055e824337aa0 R08: 0000000000000006 R09: c0c9452304dcdb09
R10: 000000000000010f R11: 0000000000000202 R12: 000055e824330ea0
R13: 00007ffcfbc0e128 R14: 00007ffcfbc0e528 R15: 000055e823b4dec8
 </TASK>
----------------
Code disassembly (best guess):
   0:	8b 15 e4 e5 77 7e    	mov    0x7e77e5e4(%rip),%edx        # 0x7e77e5ea
   6:	65 8b 05 e5 e5 77 7e 	mov    %gs:0x7e77e5e5(%rip),%eax        # 0x7e77e5f2
   d:	a9 00 01 ff 00       	test   $0xff0100,%eax
  12:	74 10                	je     0x24
  14:	a9 00 01 00 00       	test   $0x100,%eax
  19:	74 5b                	je     0x76
  1b:	83 ba 1c 16 00 00 00 	cmpl   $0x0,0x161c(%rdx)
  22:	74 52                	je     0x76
  24:	8b 82 f8 15 00 00    	mov    0x15f8(%rdx),%eax
* 2a:	83 f8 03             	cmp    $0x3,%eax <-- trapping instruction
  2d:	75 47                	jne    0x76
  2f:	48 8b 8a 00 16 00 00 	mov    0x1600(%rdx),%rcx
  36:	44 8b 8a fc 15 00 00 	mov    0x15fc(%rdx),%r9d
  3d:	49                   	rex.WB
  3e:	c1                   	.byte 0xc1
  3f:	e1                   	.byte 0xe1