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* [syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem
@ 2024-03-31 19:40 syzbot
  0 siblings, 0 replies; 4+ messages in thread
From: syzbot @ 2024-03-31 19:40 UTC (permalink / raw)
  To: frederic, linux-kernel, mingo, syzkaller-bugs, tglx

Hello,

syzbot found the following issue on:

HEAD commit:    fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree:       upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=16f5005e180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=aef2a55903e5791c
dashboard link: https://syzkaller.appspot.com/bug?extid=1dab15008502531a13d2
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14437c21180000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15217b9e180000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/089e25869df5/disk-fe46a7dd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/423b1787914f/vmlinux-fe46a7dd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4c043e30c07d/bzImage-fe46a7dd.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+1dab15008502531a13d2@syzkaller.appspotmail.com

================================
WARNING: inconsistent lock state
6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted
--------------------------------
inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
syz-executor164/5064 [HC0[0]:SC0[0]:HE0:SE1] takes:
ffff8880b943e698 (&rq->__lock){?.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
{IN-HARDIRQ-W} state was registered at:
  lock_acquire kernel/locking/lockdep.c:5754 [inline]
  lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
  _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
  raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
  raw_spin_rq_lock kernel/sched/sched.h:1385 [inline]
  rq_lock kernel/sched/sched.h:1699 [inline]
  scheduler_tick+0xa2/0x650 kernel/sched/core.c:5679
  update_process_times+0x199/0x220 kernel/time/timer.c:2481
  tick_periodic+0x7e/0x230 kernel/time/tick-common.c:100
  tick_handle_periodic+0x45/0x120 kernel/time/tick-common.c:112
  timer_interrupt+0x4e/0x80 arch/x86/kernel/time.c:57
  __handle_irq_event_percpu+0x22c/0x750 kernel/irq/handle.c:158
  handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
  handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
  handle_edge_irq+0x263/0xd10 kernel/irq/chip.c:831
  generic_handle_irq_desc include/linux/irqdesc.h:161 [inline]
  handle_irq arch/x86/kernel/irq.c:238 [inline]
  __common_interrupt+0xe1/0x250 arch/x86/kernel/irq.c:257
  common_interrupt+0xab/0xd0 arch/x86/kernel/irq.c:247
  asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
  console_flush_all+0xa19/0xd70 kernel/printk/printk.c:2979
  console_unlock+0xae/0x290 kernel/printk/printk.c:3042
  vprintk_emit kernel/printk/printk.c:2342 [inline]
  vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
  vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
  _printk+0xc8/0x100 kernel/printk/printk.c:2367
  cpu_detect_tlb arch/x86/kernel/cpu/common.c:860 [inline]
  identify_boot_cpu arch/x86/kernel/cpu/common.c:1934 [inline]
  arch_cpu_finalize_init+0x7b/0x170 arch/x86/kernel/cpu/common.c:2310
  start_kernel+0x32b/0x490 init/main.c:1043
  x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
  x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
  common_startup_64+0x13e/0x148
irq event stamp: 4834
hardirqs last  enabled at (4831): [<ffffffff8ad60263>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (4831): [<ffffffff8ad60263>] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
hardirqs last disabled at (4832): [<ffffffff8ad48b14>] __schedule+0x2644/0x5c70 kernel/sched/core.c:6634
softirqs last  enabled at (4834): [<ffffffff88cb2754>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (4834): [<ffffffff88cb2754>] sock_hash_delete_elem+0x1f4/0x260 net/core/sock_map.c:947
softirqs last disabled at (4833): [<ffffffff88cb262b>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (4833): [<ffffffff88cb262b>] sock_hash_delete_elem+0xcb/0x260 net/core/sock_map.c:939

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&rq->__lock
);
  <Interrupt>
    lock(&rq->__lock
);

 *** DEADLOCK ***

2 locks held by syz-executor164/5064:
 #0: ffff8880b943e698
 (&rq->__lock
){?.-.}-{2:2}
, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
 #1: ffffffff8d7b08e0
 (rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
, at: bpf_trace_run4+0x107/0x460 kernel/trace/bpf_trace.c:2422

stack backtrace:
CPU: 0 PID: 5064 Comm: syz-executor164 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
 print_usage_bug kernel/locking/lockdep.c:3971 [inline]
 valid_state kernel/locking/lockdep.c:4013 [inline]
 mark_lock_irq kernel/locking/lockdep.c:4216 [inline]
 mark_lock+0x923/0xc60 kernel/locking/lockdep.c:4678
 mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4274
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:4292 [inline]
 lockdep_hardirqs_on_prepare+0x137/0x420 kernel/locking/lockdep.c:4359
 trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
 __local_bh_enable_ip+0xa4/0x120 kernel/softirq.c:387
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 sock_hash_delete_elem+0x1f4/0x260 net/core/sock_map.c:947
 ___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
 __bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run4+0x176/0x460 kernel/trace/bpf_trace.c:2422
 __bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2266/0x5c70 kernel/sched/core.c:6733
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6828
 ptrace_stop.part.0+0x440/0x940 kernel/signal.c:2358
 ptrace_stop kernel/signal.c:2260 [inline]
 ptrace_do_notify+0x222/0x2d0 kernel/signal.c:2395
 ptrace_notify+0xc5/0x130 kernel/signal.c:2407
 ptrace_report_syscall include/linux/ptrace.h:415 [inline]
 ptrace_report_syscall_entry include/linux/ptrace.h:452 [inline]
 syscall_trace_enter+0xb5/0x210 kernel/entry/common.c:45
 syscall_enter_from_user_mode_work include/linux/entry-common.h:168 [inline]
 syscall_enter_from_user_mode include/linux/entry-common.h:198 [inline]
 do_syscall_64+0x1f6/0x260 arch/x86/entry/common.c:79
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f122969f6b3
Code: 00 00 00 00 0f 1f 00 83 ff 03 74 7b 83 ff 02 b8 fa ff ff ff 49 89 ca 0f 44 f8 80 3d ce e9 03 00 00 74 14 b8 e6 00 00 00 0f 05 <f7> d8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 54 24 10
RSP: 002b:00007ffd4d89e018 EFLAGS: 00000202
 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00000000000013c9 RCX: 00007f122969f6b3
RDX: 00007ffd4d89e030 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000012939 R08: 000000000000004c R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd4d89e06c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem
       [not found] <20240401064606.3240303-1-lizhi.xu@windriver.com>
@ 2024-04-01  7:07 ` syzbot
  0 siblings, 0 replies; 4+ messages in thread
From: syzbot @ 2024-04-01  7:07 UTC (permalink / raw)
  To: linux-kernel, lizhi.xu, syzkaller-bugs

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
possible deadlock in console_flush_all

------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.8.0-syzkaller-08951-gfe46a7dd189e-dirty #0 Not tainted
------------------------------------------------------
syz-executor.0/5485 is trying to acquire lock:
ffffffff8d6bdea0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable kernel/printk/printk.c:1873 [inline]
ffffffff8d6bdea0 (console_owner){....}-{0:0}, at: console_emit_next_record kernel/printk/printk.c:2901 [inline]
ffffffff8d6bdea0 (console_owner){....}-{0:0}, at: console_flush_all+0x4ff/0xd70 kernel/printk/printk.c:2973

but task is already holding lock:
ffff8880b953e698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&rq->__lock){-.-.}-{2:2}:
       _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
       raw_spin_rq_lock kernel/sched/sched.h:1385 [inline]
       rq_lock kernel/sched/sched.h:1699 [inline]
       task_fork_fair+0x70/0x240 kernel/sched/fair.c:12629
       sched_cgroup_fork+0x3cf/0x510 kernel/sched/core.c:4845
       copy_process+0x4106/0x9160 kernel/fork.c:2498
       kernel_clone+0xfd/0x940 kernel/fork.c:2796
       user_mode_thread+0xb4/0xf0 kernel/fork.c:2874
       rest_init+0x27/0x2b0 init/main.c:695
       arch_call_rest_init+0x13/0x40 init/main.c:831
       start_kernel+0x3a3/0x490 init/main.c:1077
       x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
       x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
       common_startup_64+0x13e/0x148

-> #3 (&p->pi_lock){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
       class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline]
       try_to_wake_up+0x9a/0x13e0 kernel/sched/core.c:4262
       __wake_up_common+0x131/0x1e0 kernel/sched/wait.c:89
       __wake_up_common_lock kernel/sched/wait.c:106 [inline]
       __wake_up+0x31/0x60 kernel/sched/wait.c:127
       tty_port_default_wakeup+0x2a/0x40 drivers/tty/tty_port.c:69
       serial8250_tx_chars+0x55a/0x8b0 drivers/tty/serial/8250/8250_port.c:1835
       serial8250_handle_irq+0x5d3/0x780 drivers/tty/serial/8250/8250_port.c:1942
       serial8250_default_handle_irq+0x9a/0x210 drivers/tty/serial/8250/8250_port.c:1962
       serial8250_interrupt+0x103/0x210 drivers/tty/serial/8250/8250_core.c:127
       __handle_irq_event_percpu+0x229/0x750 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
       handle_edge_irq+0x263/0xd10 kernel/irq/chip.c:831
       generic_handle_irq_desc include/linux/irqdesc.h:161 [inline]
       handle_irq arch/x86/kernel/irq.c:238 [inline]
       __common_interrupt+0xde/0x250 arch/x86/kernel/irq.c:257
       common_interrupt+0xab/0xd0 arch/x86/kernel/irq.c:247
       asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
       __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
       _raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
       spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
       uart_port_unlock_irqrestore include/linux/serial_core.h:667 [inline]
       serial_port_runtime_resume+0x2b7/0x340 drivers/tty/serial/serial_port.c:41
       __rpm_callback+0xc5/0x4c0 drivers/base/power/runtime.c:394
       rpm_callback+0x1da/0x220 drivers/base/power/runtime.c:448
       rpm_resume+0xcf9/0x12f0 drivers/base/power/runtime.c:914
       pm_runtime_work+0x10c/0x150 drivers/base/power/runtime.c:979
       process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
       process_scheduled_works kernel/workqueue.c:3335 [inline]
       worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
       kthread+0x2c1/0x3a0 kernel/kthread.c:388
       ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243

-> #2 (&tty->write_wait){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
       __wake_up_common_lock kernel/sched/wait.c:105 [inline]
       __wake_up+0x1c/0x60 kernel/sched/wait.c:127
       tty_port_default_wakeup+0x2a/0x40 drivers/tty/tty_port.c:69
       serial8250_tx_chars+0x55a/0x8b0 drivers/tty/serial/8250/8250_port.c:1835
       serial8250_handle_irq+0x5d3/0x780 drivers/tty/serial/8250/8250_port.c:1942
       serial8250_default_handle_irq+0x9a/0x210 drivers/tty/serial/8250/8250_port.c:1962
       serial8250_interrupt+0x103/0x210 drivers/tty/serial/8250/8250_core.c:127
       __handle_irq_event_percpu+0x229/0x750 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
       handle_edge_irq+0x263/0xd10 kernel/irq/chip.c:831
       generic_handle_irq_desc include/linux/irqdesc.h:161 [inline]
       handle_irq arch/x86/kernel/irq.c:238 [inline]
       __common_interrupt+0xde/0x250 arch/x86/kernel/irq.c:257
       common_interrupt+0xab/0xd0 arch/x86/kernel/irq.c:247
       asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
       __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
       _raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
       spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
       uart_port_unlock_irqrestore include/linux/serial_core.h:667 [inline]
       serial_port_runtime_resume+0x2b7/0x340 drivers/tty/serial/serial_port.c:41
       __rpm_callback+0xc5/0x4c0 drivers/base/power/runtime.c:394
       rpm_callback+0x1da/0x220 drivers/base/power/runtime.c:448
       rpm_resume+0xcf9/0x12f0 drivers/base/power/runtime.c:914
       pm_runtime_work+0x10c/0x150 drivers/base/power/runtime.c:979
       process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
       process_scheduled_works kernel/workqueue.c:3335 [inline]
       worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
       kthread+0x2c1/0x3a0 kernel/kthread.c:388
       ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243

-> #1 (&port_lock_key){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
       uart_port_lock_irqsave include/linux/serial_core.h:616 [inline]
       serial8250_console_write+0xaa6/0x1090 drivers/tty/serial/8250/8250_port.c:3403
       console_emit_next_record kernel/printk/printk.c:2907 [inline]
       console_flush_all+0x53f/0xd70 kernel/printk/printk.c:2973
       console_unlock+0xae/0x290 kernel/printk/printk.c:3042
       vprintk_emit kernel/printk/printk.c:2342 [inline]
       vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
       vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
       _printk+0xc8/0x100 kernel/printk/printk.c:2367
       register_console+0xa7b/0x1060 kernel/printk/printk.c:3548
       univ8250_console_init+0x35/0x50 drivers/tty/serial/8250/8250_core.c:717
       console_init+0xcc/0x5e0 kernel/printk/printk.c:3694
       start_kernel+0x259/0x490 init/main.c:1012
       x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
       x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
       common_startup_64+0x13e/0x148

-> #0 (console_owner){....}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3134 [inline]
       check_prevs_add kernel/locking/lockdep.c:3253 [inline]
       validate_chain kernel/locking/lockdep.c:3869 [inline]
       __lock_acquire+0x2478/0x3b30 kernel/locking/lockdep.c:5137
       lock_acquire kernel/locking/lockdep.c:5754 [inline]
       lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
       console_lock_spinning_enable kernel/printk/printk.c:1873 [inline]
       console_emit_next_record kernel/printk/printk.c:2901 [inline]
       console_flush_all+0x514/0xd70 kernel/printk/printk.c:2973
       console_unlock+0xae/0x290 kernel/printk/printk.c:3042
       vprintk_emit kernel/printk/printk.c:2342 [inline]
       vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
       vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
       _printk+0xc8/0x100 kernel/printk/printk.c:2367
       __report_bug lib/bug.c:195 [inline]
       report_bug+0x4ac/0x580 lib/bug.c:219
       handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
       exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:260
       asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
       __local_bh_enable_ip+0xc3/0x120 kernel/softirq.c:362
       spin_unlock_bh include/linux/spinlock.h:396 [inline]
       sock_hash_delete_elem+0x1f4/0x260 net/core/sock_map.c:947
       ___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
       __bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
       bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
       __bpf_prog_run include/linux/filter.h:657 [inline]
       bpf_prog_run include/linux/filter.h:664 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
       bpf_trace_run4+0x176/0x460 kernel/trace/bpf_trace.c:2422
       __bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
       trace_sched_switch include/trace/events/sched.h:222 [inline]
       __schedule+0x2266/0x5c70 kernel/sched/core.c:6733
       preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6915
       preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:12
       class_preempt_destructor include/linux/preempt.h:480 [inline]
       class_preempt_destructor include/linux/preempt.h:480 [inline]
       try_to_wake_up+0xc08/0x13e0 kernel/sched/core.c:4233
       wake_up_process kernel/sched/core.c:4510 [inline]
       wake_up_q+0x91/0x140 kernel/sched/core.c:1029
       futex_wake+0x43e/0x4e0 kernel/futex/waitwake.c:199
       do_futex+0x1e5/0x350 kernel/futex/syscalls.c:107
       __do_sys_futex kernel/futex/syscalls.c:179 [inline]
       __se_sys_futex kernel/futex/syscalls.c:160 [inline]
       __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x6d/0x75

other info that might help us debug this:

Chain exists of:
  console_owner --> &p->pi_lock --> &rq->__lock

 Possible unsafe locking scenario:

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

 *** DEADLOCK ***

4 locks held by syz-executor.0/5485:
 #0: ffff8880b953e698 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
 #1: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 #1: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
 #1: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
 #1: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x107/0x460 kernel/trace/bpf_trace.c:2422
 #2: ffffffff8d79e2e0 (console_lock){+.+.}-{0:0}, at: vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
 #3: ffffffff8d79e350 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:303 [inline]
 #3: ffffffff8d79e350 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
 #3: ffffffff8d79e350 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
 #3: ffffffff8d79e350 (console_srcu){....}-{0:0}, at: console_flush_all+0x12d/0xd70 kernel/printk/printk.c:2965

stack backtrace:
CPU: 1 PID: 5485 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e-dirty #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+0x116/0x1f0 lib/dump_stack.c:114
 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2187
 check_prev_add kernel/locking/lockdep.c:3134 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain kernel/locking/lockdep.c:3869 [inline]
 __lock_acquire+0x2478/0x3b30 kernel/locking/lockdep.c:5137
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
 console_lock_spinning_enable kernel/printk/printk.c:1873 [inline]
 console_emit_next_record kernel/printk/printk.c:2901 [inline]
 console_flush_all+0x514/0xd70 kernel/printk/printk.c:2973
 console_unlock+0xae/0x290 kernel/printk/printk.c:3042
 vprintk_emit kernel/printk/printk.c:2342 [inline]
 vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2367
 __report_bug lib/bug.c:195 [inline]
 report_bug+0x4ac/0x580 lib/bug.c:219
 handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
 exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:260
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
RIP: 0010:__local_bh_enable_ip+0xc3/0x120 kernel/softirq.c:362
Code: 00 e8 81 6c 0b 00 e8 9c 69 42 00 fb 65 8b 05 cc 34 b2 7e 85 c0 74 52 5b 5d c3 cc cc cc cc 65 8b 05 4e e9 b0 7e 85 c0 75 9e 90 <0f> 0b 90 eb 98 e8 c3 67 42 00 eb 99 48 89 ef e8 49 e0 19 00 eb a2
RSP: 0018:ffffc900037a7600 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000201 RCX: 1ffffffff1f3d467
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff88cb2794
RBP: ffffffff88cb2794 R08: 0000000000000000 R09: ffffed100dab841c
R10: ffff88806d5c20e3 R11: ffffffff934716a8 R12: fffffffffffffffe
R13: ffff88806d5c20e0 R14: ffff88806d5c20d8 R15: 0000000023700e53
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 sock_hash_delete_elem+0x1f4/0x260 net/core/sock_map.c:947
 ___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
 __bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run4+0x176/0x460 kernel/trace/bpf_trace.c:2422
 __bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2266/0x5c70 kernel/sched/core.c:6733
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6915
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:12
 class_preempt_destructor include/linux/preempt.h:480 [inline]
 class_preempt_destructor include/linux/preempt.h:480 [inline]
 try_to_wake_up+0xc08/0x13e0 kernel/sched/core.c:4233
 wake_up_process kernel/sched/core.c:4510 [inline]
 wake_up_q+0x91/0x140 kernel/sched/core.c:1029
 futex_wake+0x43e/0x4e0 kernel/futex/waitwake.c:199
 do_futex+0x1e5/0x350 kernel/futex/syscalls.c:107
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex kernel/futex/syscalls.c:160 [inline]
 __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f1002a7dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f100382d178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f1002babf88 RCX: 00007f1002a7dda9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1002babf8c
RBP: 00007f1002babf80 R08: 0000000000000001 R09: 00007f100382d6c0
R10: 0000000000000005 R11: 0000000000000246 R12: 00007f1002babf8c
R13: 000000000000000b R14: 00007fff6da22fd0 R15: 00007fff6da230b8
 </TASK>
WARNING: CPU: 1 PID: 5485 at kernel/softirq.c:362 __local_bh_enable_ip+0xc3/0x120 kernel/softirq.c:362
Modules linked in:
CPU: 1 PID: 5485 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__local_bh_enable_ip+0xc3/0x120 kernel/softirq.c:362
Code: 00 e8 81 6c 0b 00 e8 9c 69 42 00 fb 65 8b 05 cc 34 b2 7e 85 c0 74 52 5b 5d c3 cc cc cc cc 65 8b 05 4e e9 b0 7e 85 c0 75 9e 90 <0f> 0b 90 eb 98 e8 c3 67 42 00 eb 99 48 89 ef e8 49 e0 19 00 eb a2
RSP: 0018:ffffc900037a7600 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000201 RCX: 1ffffffff1f3d467
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff88cb2794
RBP: ffffffff88cb2794 R08: 0000000000000000 R09: ffffed100dab841c
R10: ffff88806d5c20e3 R11: ffffffff934716a8 R12: fffffffffffffffe
R13: ffff88806d5c20e0 R14: ffff88806d5c20d8 R15: 0000000023700e53
FS:  00007f100382d6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1002ba80c0 CR3: 000000007c110000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 sock_hash_delete_elem+0x1f4/0x260 net/core/sock_map.c:947
 ___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
 __bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run4+0x176/0x460 kernel/trace/bpf_trace.c:2422
 __bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2266/0x5c70 kernel/sched/core.c:6733
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6915
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:12
 class_preempt_destructor include/linux/preempt.h:480 [inline]
 class_preempt_destructor include/linux/preempt.h:480 [inline]
 try_to_wake_up+0xc08/0x13e0 kernel/sched/core.c:4233
 wake_up_process kernel/sched/core.c:4510 [inline]
 wake_up_q+0x91/0x140 kernel/sched/core.c:1029
 futex_wake+0x43e/0x4e0 kernel/futex/waitwake.c:199
 do_futex+0x1e5/0x350 kernel/futex/syscalls.c:107
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex kernel/futex/syscalls.c:160 [inline]
 __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f1002a7dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f100382d178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f1002babf88 RCX: 00007f1002a7dda9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1002babf8c
RBP: 00007f1002babf80 R08: 0000000000000001 R09: 00007f100382d6c0
R10: 0000000000000005 R11: 0000000000000246 R12: 00007f1002babf8c
R13: 000000000000000b R14: 00007fff6da22fd0 R15: 00007fff6da230b8
 </TASK>


Tested on:

commit:         fe46a7dd Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=10d4365e180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=aef2a55903e5791c
dashboard link: https://syzkaller.appspot.com/bug?extid=1dab15008502531a13d2
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11b605e5180000


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem
       [not found] <20240401074727.1144264-1-lizhi.xu@windriver.com>
@ 2024-04-01  8:21 ` syzbot
  0 siblings, 0 replies; 4+ messages in thread
From: syzbot @ 2024-04-01  8:21 UTC (permalink / raw)
  To: linux-kernel, lizhi.xu, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

_data.html for more details.
[    4.718465][    T1] smp: Brought up 2 nodes, 2 CPUs
[    4.719648][    T1] smpboot: Total of 2 processors activated (8800.85 BogoMIPS)
[    4.729601][    T1] devtmpfs: initialized
[    4.729601][    T1] x86/mm: Memory block size: 128MB
[    4.809009][    T1] Running RCU synchronous self tests
[    4.809009][    T1] Running RCU synchronous self tests
[    4.809643][    T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    4.812622][    T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc)
[    4.818874][    T1] PM: RTC time: 08:12:37, date: 2024-04-01
[    4.824146][    T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    4.832868][    T1] audit: initializing netlink subsys (disabled)
[    4.835572][   T28] audit: type=2000 audit(1711959157.647:1): state=initialized audit_enabled=0 res=1
[    4.840900][    T1] thermal_sys: Registered thermal governor 'step_wise'
[    4.840915][    T1] thermal_sys: Registered thermal governor 'user_space'
[    4.842716][    T1] cpuidle: using governor menu
[    4.846928][    T1] NET: Registered PF_QIPCRTR protocol family
[    4.856743][    T1] dca service started, version 1.12.1
[    4.857984][    T1] PCI: Using configuration type 1 for base access
[    4.869693][    T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages
[    4.871942][    T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page
[    4.873969][    T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
[    4.874972][    T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page
[    4.894997][    C0] ------------[ cut here ]------------
[    4.896611][    C0] raw_local_irq_restore() called with IRQs enabled
[    4.894981][    T1] cryptd: max_cpu_qlen set to 1000
[    4.897981][    C0] WARNING: CPU: 0 PID: 3 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x29/0x30
[    4.901484][    C0] Modules linked in:
[    4.902651][    C0] CPU: 0 PID: 3 Comm: pool_workqueue_ Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e-dirty #0
[    4.904951][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[    4.907171][    C0] RIP: 0010:warn_bogus_irq_restore+0x29/0x30
[    4.908552][    C0] Code: 90 f3 0f 1e fa 90 80 3d f2 cf b5 04 00 74 06 90 c3 cc cc cc cc c6 05 e3 cf b5 04 01 90 48 c7 c7 c0 b1 0c 8b e8 78 6b 7d f6 90 <0f> 0b 90 90 eb df 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
[    4.914048][    C0] RSP: 0000:ffffc90000007c10 EFLAGS: 00010286
[    4.914953][    C0] RAX: 0000000000000000 RBX: ffff8880b943e680 RCX: ffffffff814fafe9
[    4.917134][    C0] RDX: ffff888016ac3c00 RSI: ffffffff814faff6 RDI: 0000000000000001
[    4.919117][    C0] RBP: ffffc90000007de8 R08: 0000000000000001 R09: 0000000000000000
[    4.921608][    C0] R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000200
[    4.922975][    C0] R13: ffff8880b953e680 R14: 000000000000d3be R15: dffffc0000000000
[    4.924954][    C0] FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[    4.926550][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.927759][    C0] CR2: ffff88823ffff000 CR3: 000000000d57a000 CR4: 00000000003506f0
[    4.929068][    C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    4.931048][    C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    4.932732][    C0] Call Trace:
[    4.933476][    C0]  <IRQ>
[    4.934953][    C0]  ? show_regs+0x8c/0xa0
[    4.935841][    C0]  ? __warn+0xe5/0x390
[    4.936556][    C0]  ? __wake_up_klogd.part.0+0x99/0xf0
[    4.938066][    C0]  ? warn_bogus_irq_restore+0x29/0x30
[    4.939009][    C0]  ? report_bug+0x3c0/0x580
[    4.939893][    C0]  ? handle_bug+0x3d/0x70
[    4.940924][    C0]  ? exc_invalid_op+0x17/0x50
[    4.941738][    C0]  ? asm_exc_invalid_op+0x1a/0x20
[    4.943099][    C0]  ? __warn_printk+0x199/0x350
[    4.944021][    C0]  ? __warn_printk+0x1a6/0x350
[    4.944956][    C0]  ? warn_bogus_irq_restore+0x29/0x30
[    4.946600][    C0]  load_balance+0x1d4a/0x34e0
[    4.947576][    C0]  ? __pfx_load_balance+0x10/0x10
[    4.948614][    C0]  ? __pfx_lock_release+0x10/0x10
[    4.949809][    C0]  rebalance_domains+0x709/0xee0
[    4.950679][    C0]  ? __pfx_rebalance_domains+0x10/0x10
[    4.952112][    C0]  __do_softirq+0x218/0x8de
[    4.953760][    C0]  ? __pfx___do_softirq+0x10/0x10
[    4.954966][    C0]  irq_exit_rcu+0xb9/0x120
[    4.956487][    C0]  sysvec_apic_timer_interrupt+0x95/0xb0
[    4.958125][    C0]  </IRQ>
[    4.958880][    C0]  <TASK>
[    4.959719][    C0]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[    4.961420][    C0] RIP: 0010:write_comp_data+0x7d/0x90
[    4.963185][    C0] Code: 00 00 4a 8d 34 dd 28 00 00 00 48 39 f2 72 1b 48 83 c7 01 48 89 38 4c 89 44 30 e0 4c 89 4c 30 e8 4c 89 54 30 f0 4a 89 4c d8 20 <c3> cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90
[    4.964967][    C0] RSP: 0000:ffffc90000087998 EFLAGS: 00000293
[    4.966867][    C0] RAX: 0000000000000000 RBX: ffffffff8fb0dd18 RCX: ffffffff813c8bf4
[    4.969772][    C0] RDX: ffff888016ac3c00 RSI: ffffffff8174e8e9 RDI: 0000000000000006
[    4.974953][    C0] RBP: ffffffff8fb0dd28 R08: 0000000000000006 R09: ffffffff8174e8e9
[    4.976309][    C0] R10: ffffffff8174e864 R11: 0000000000000000 R12: ffffffff8174e8e9
[    4.977965][    C0] R13: ffffffff8174e864 R14: dffffc0000000000 R15: ffffffff8fb0dd20
[    4.979513][    C0]  ? __call_rcu_common.constprop.0+0x14/0x790
[    4.980977][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    4.982115][    C0]  ? __call_rcu_common.constprop.0+0x14/0x790
[    4.983204][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    4.984952][    C0]  ? __orc_find+0xc4/0x130
[    4.985757][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    4.986789][    C0]  ? unwind_next_frame+0x51/0x23a0
[    4.987591][    C0]  __orc_find+0xc4/0x130
[    4.988356][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    4.989388][    C0]  unwind_next_frame+0x335/0x23a0
[    4.990403][    C0]  ? __call_rcu_common.constprop.0+0x9a/0x790
[    4.991376][    C0]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[    4.992296][    C0]  arch_stack_walk+0x100/0x170
[    4.993240][    C0]  ? __call_rcu_common.constprop.0+0x9a/0x790
[    4.994953][    C0]  stack_trace_save+0x95/0xd0
[    4.996002][    C0]  ? __pfx_stack_trace_save+0x10/0x10
[    4.996969][    C0]  kasan_save_stack+0x33/0x60
[    4.997858][    C0]  ? kasan_save_stack+0x33/0x60
[    4.998950][    C0]  ? __kasan_record_aux_stack+0xba/0xd0
[    5.000065][    C0]  ? __call_rcu_common.constprop.0+0x9a/0x790
[    5.001080][    C0]  __kasan_record_aux_stack+0xba/0xd0
[    5.002245][    C0]  ? __pfx_rcu_free_pwq+0x10/0x10
[    5.003148][    C0]  __call_rcu_common.constprop.0+0x9a/0x790
[    5.004431][    C0]  pwq_release_workfn+0x4ca/0x9d0
[    5.004955][    C0]  ? _raw_spin_unlock_irq+0x23/0x50
[    5.006685][    C0]  kthread_worker_fn+0x305/0xab0
[    5.007704][    C0]  ? __pfx_pwq_release_workfn+0x10/0x10
[    5.008662][    C0]  ? __pfx_kthread_worker_fn+0x10/0x10
[    5.010047][    C0]  kthread+0x2c1/0x3a0
[    5.011217][    C0]  ? _raw_spin_unlock_irq+0x23/0x50
[    5.012287][    C0]  ? __pfx_kthread+0x10/0x10
[    5.013140][    C0]  ret_from_fork+0x45/0x80
[    5.014089][    C0]  ? __pfx_kthread+0x10/0x10
[    5.014951][    C0]  ret_from_fork_asm+0x1a/0x30
[    5.015989][    C0]  </TASK>
[    5.017349][    C0] Kernel panic - not syncing: kernel: panic_on_warn set ...
[    5.018846][    C0] CPU: 0 PID: 3 Comm: pool_workqueue_ Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e-dirty #0
[    5.020847][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[    5.022520][    C0] Call Trace:
[    5.023086][    C0]  <IRQ>
[    5.023564][    C0]  dump_stack_lvl+0x3d/0x1f0
[    5.024316][    C0]  panic+0x6f5/0x7a0
[    5.024939][    C0]  ? __pfx_panic+0x10/0x10
[    5.024939][    C0]  ? show_trace_log_lvl+0x363/0x500
[    5.024939][    C0]  ? check_panic_on_warn+0x1f/0xb0
[    5.024939][    C0]  ? warn_bogus_irq_restore+0x29/0x30
[    5.024939][    C0]  check_panic_on_warn+0xab/0xb0
[    5.024939][    C0]  __warn+0xf1/0x390
[    5.024939][    C0]  ? __wake_up_klogd.part.0+0x99/0xf0
[    5.024939][    C0]  ? warn_bogus_irq_restore+0x29/0x30
[    5.024939][    C0]  report_bug+0x3c0/0x580
[    5.024939][    C0]  handle_bug+0x3d/0x70
[    5.024939][    C0]  exc_invalid_op+0x17/0x50
[    5.024939][    C0]  asm_exc_invalid_op+0x1a/0x20
[    5.024939][    C0] RIP: 0010:warn_bogus_irq_restore+0x29/0x30
[    5.024939][    C0] Code: 90 f3 0f 1e fa 90 80 3d f2 cf b5 04 00 74 06 90 c3 cc cc cc cc c6 05 e3 cf b5 04 01 90 48 c7 c7 c0 b1 0c 8b e8 78 6b 7d f6 90 <0f> 0b 90 90 eb df 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
[    5.024939][    C0] RSP: 0000:ffffc90000007c10 EFLAGS: 00010286
[    5.024939][    C0] RAX: 0000000000000000 RBX: ffff8880b943e680 RCX: ffffffff814fafe9
[    5.024939][    C0] RDX: ffff888016ac3c00 RSI: ffffffff814faff6 RDI: 0000000000000001
[    5.024939][    C0] RBP: ffffc90000007de8 R08: 0000000000000001 R09: 0000000000000000
[    5.024939][    C0] R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000200
[    5.024939][    C0] R13: ffff8880b953e680 R14: 000000000000d3be R15: dffffc0000000000
[    5.024939][    C0]  ? __warn_printk+0x199/0x350
[    5.024939][    C0]  ? __warn_printk+0x1a6/0x350
[    5.024939][    C0]  load_balance+0x1d4a/0x34e0
[    5.024939][    C0]  ? __pfx_load_balance+0x10/0x10
[    5.024939][    C0]  ? __pfx_lock_release+0x10/0x10
[    5.024939][    C0]  rebalance_domains+0x709/0xee0
[    5.024939][    C0]  ? __pfx_rebalance_domains+0x10/0x10
[    5.024939][    C0]  __do_softirq+0x218/0x8de
[    5.024939][    C0]  ? __pfx___do_softirq+0x10/0x10
[    5.024939][    C0]  irq_exit_rcu+0xb9/0x120
[    5.024939][    C0]  sysvec_apic_timer_interrupt+0x95/0xb0
[    5.024939][    C0]  </IRQ>
[    5.024939][    C0]  <TASK>
[    5.024939][    C0]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[    5.024939][    C0] RIP: 0010:write_comp_data+0x7d/0x90
[    5.024939][    C0] Code: 00 00 4a 8d 34 dd 28 00 00 00 48 39 f2 72 1b 48 83 c7 01 48 89 38 4c 89 44 30 e0 4c 89 4c 30 e8 4c 89 54 30 f0 4a 89 4c d8 20 <c3> cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90
[    5.024939][    C0] RSP: 0000:ffffc90000087998 EFLAGS: 00000293
[    5.024939][    C0] RAX: 0000000000000000 RBX: ffffffff8fb0dd18 RCX: ffffffff813c8bf4
[    5.024939][    C0] RDX: ffff888016ac3c00 RSI: ffffffff8174e8e9 RDI: 0000000000000006
[    5.024939][    C0] RBP: ffffffff8fb0dd28 R08: 0000000000000006 R09: ffffffff8174e8e9
[    5.024939][    C0] R10: ffffffff8174e864 R11: 0000000000000000 R12: ffffffff8174e8e9
[    5.024939][    C0] R13: ffffffff8174e864 R14: dffffc0000000000 R15: ffffffff8fb0dd20
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x14/0x790
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x14/0x790
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    5.024939][    C0]  ? __orc_find+0xc4/0x130
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    5.024939][    C0]  ? unwind_next_frame+0x51/0x23a0
[    5.024939][    C0]  __orc_find+0xc4/0x130
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x99/0x790
[    5.024939][    C0]  unwind_next_frame+0x335/0x23a0
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x9a/0x790
[    5.024939][    C0]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[    5.024939][    C0]  arch_stack_walk+0x100/0x170
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x9a/0x790
[    5.024939][    C0]  stack_trace_save+0x95/0xd0
[    5.024939][    C0]  ? __pfx_stack_trace_save+0x10/0x10
[    5.024939][    C0]  kasan_save_stack+0x33/0x60
[    5.024939][    C0]  ? kasan_save_stack+0x33/0x60
[    5.024939][    C0]  ? __kasan_record_aux_stack+0xba/0xd0
[    5.024939][    C0]  ? __call_rcu_common.constprop.0+0x9a/0x790
[    5.024939][    C0]  __kasan_record_aux_stack+0xba/0xd0
[    5.024939][    C0]  ? __pfx_rcu_free_pwq+0x10/0x10
[    5.024939][    C0]  __call_rcu_common.constprop.0+0x9a/0x790
[    5.024939][    C0]  pwq_release_workfn+0x4ca/0x9d0
[    5.024939][    C0]  ? _raw_spin_unlock_irq+0x23/0x50
[    5.024939][    C0]  kthread_worker_fn+0x305/0xab0
[    5.024939][    C0]  ? __pfx_pwq_release_workfn+0x10/0x10
[    5.024939][    C0]  ? __pfx_kthread_worker_fn+0x10/0x10
[    5.024939][    C0]  kthread+0x2c1/0x3a0
[    5.024939][    C0]  ? _raw_spin_unlock_irq+0x23/0x50
[    5.024939][    C0]  ? __pfx_kthread+0x10/0x10
[    5.024939][    C0]  ret_from_fork+0x45/0x80
[    5.024939][    C0]  ? __pfx_kthread+0x10/0x10
[    5.024939][    C0]  ret_from_fork_asm+0x1a/0x30
[    5.024939][    C0]  </TASK>
[    5.024939][    C0] Rebooting in 86400 seconds..


syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.21.4'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build860573737=/tmp/go-build -gno-record-gcc-switches'

git status (err=<nil>)
HEAD detached at 454571b6a
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=454571b6a16598f5a6e015b9fb1a04932bce7ab9 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240326-163935'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=454571b6a16598f5a6e015b9fb1a04932bce7ab9 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240326-163935'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=454571b6a16598f5a6e015b9fb1a04932bce7ab9 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240326-163935'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \
	-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"454571b6a16598f5a6e015b9fb1a04932bce7ab9\"


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=1602fe29180000


Tested on:

commit:         fe46a7dd Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel config:  https://syzkaller.appspot.com/x/.config?x=aef2a55903e5791c
dashboard link: https://syzkaller.appspot.com/bug?extid=1dab15008502531a13d2
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16de130d180000


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem
       [not found] <20240401083613.441892-1-lizhi.xu@windriver.com>
@ 2024-04-01  9:11 ` syzbot
  0 siblings, 0 replies; 4+ messages in thread
From: syzbot @ 2024-04-01  9:11 UTC (permalink / raw)
  To: linux-kernel, lizhi.xu, syzkaller-bugs

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+1dab15008502531a13d2@syzkaller.appspotmail.com

Tested on:

commit:         fe46a7dd Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=11bcf70d180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=aef2a55903e5791c
dashboard link: https://syzkaller.appspot.com/bug?extid=1dab15008502531a13d2
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=129b452d180000

Note: testing is done by a robot and is best-effort only.

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2024-04-01  9:11 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <20240401083613.441892-1-lizhi.xu@windriver.com>
2024-04-01  9:11 ` [syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem syzbot
     [not found] <20240401074727.1144264-1-lizhi.xu@windriver.com>
2024-04-01  8:21 ` syzbot
     [not found] <20240401064606.3240303-1-lizhi.xu@windriver.com>
2024-04-01  7:07 ` syzbot
2024-03-31 19:40 syzbot

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