[syzbot] [kernel?] inconsistent lock state in sock_hash_delete_elem

From: syzbot
Date: Sun Mar 31 2024 - 15:40:31 EST

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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@xxxxxxxxxxxxxxxxxxxxxxxxx

================================
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>

---
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Next message: Krzysztof Kozlowski: "Re: [EXTERNAL] Re: [PATCH v7 4/4] ASoc: dt-bindings: PCM6240: Add initial DT binding"
Previous message: syzbot: "[syzbot] [ide?] WARNING in ata_scsi_queuecmd"
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