------------[ cut here ]------------ WARNING: CPU: 0 PID: 3517 at kernel/softirq.c:363 __local_bh_enable_ip+0x1b3/0x1f0 Modules linked in: CPU: 0 PID: 3517 Comm: syz-executor.2 Not tainted 5.15.153-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:363 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 c4 c8 e3 8d 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc900000075e0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 1ffff92000000ec0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff884ede60 RBP: ffffc900000076a0 R08: dffffc0000000000 R09: ffffed100fa58d02 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 0000000000000004 R14: ffffc90000007620 R15: 0000000000000201 FS: 00005555562f2480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f123000 CR3: 0000000061c9c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_hash_delete_elem+0x1a0/0x2f0 net/core/sock_map.c:945 bpf_prog_330576d32f01b34b+0x5b/0x56c bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1917 __bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x22f/0x270 mm/slub.c:4549 dummy_timer+0x838/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1981 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1737 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1750 __do_softirq+0x3b3/0x93a kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:preempt_schedule_irq+0xf2/0x1c0 kernel/sched/core.c:6780 Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 97 00 00 00 bf 01 00 00 00 e8 29 05 33 f7 e8 44 7c 62 f7 fb bf 01 00 00 00 a9 b3 ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 b9 bd a5 f7 48 RSP: 0018:ffffc90002e37720 EFLAGS: 00000282 RAX: e5e14f8943d68b00 RBX: 1ffff920005c6eec RCX: ffffffff8162f8e8 RDX: dffffc0000000000 RSI: ffffffff8a8b1500 RDI: 0000000000000001 RBP: ffffc90002e377e0 R08: dffffc0000000000 R09: fffffbfff1f7a038 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920005c6ee4 R13: 1ffff920005c6ee8 R14: ffffc90002e37740 R15: dffffc0000000000 irqentry_exit+0x53/0x80 kernel/entry/common.c:426 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:643 RIP: 0010:lock_acquire+0x252/0x4f0 kernel/locking/lockdep.c:5627 Code: 2b 00 74 08 4c 89 f7 e8 1c 6b 67 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc90002e378a0 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff920005c6f20 RCX: ffffffff913c7f03 RDX: dffffc0000000000 RSI: ffffffff8a8b27a0 RDI: ffffffff8ad88fc0 RBP: ffffc90002e379e8 R08: dffffc0000000000 R09: fffffbfff218df80 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920005c6f1c R13: dffffc0000000000 R14: ffffc90002e37900 R15: 0000000000000246 flush_workqueue+0x170/0x1610 kernel/workqueue.c:2830 drain_workqueue+0xc5/0x390 kernel/workqueue.c:2995 destroy_workqueue+0x7b/0xae0 kernel/workqueue.c:4439 reiserfs_put_super+0x35b/0x4b0 fs/reiserfs/super.c:631 generic_shutdown_super+0x136/0x2c0 fs/super.c:475 kill_block_super+0x7a/0xe0 fs/super.c:1414 deactivate_locked_super+0xa0/0x110 fs/super.c:335 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143 task_work_run+0x129/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fb783d8e197 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffff6a6ec48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb783d8e197 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffff6a6ed00 RBP: 00007ffff6a6ed00 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffff6a6fdc0 R13: 00007fb783dd83b9 R14: 000000000002e29d R15: 0000000000000008 ---------------- Code disassembly (best guess): 0: 89 f5 mov %esi,%ebp 2: 49 c1 ed 03 shr $0x3,%r13 6: eb 0d jmp 0x15 8: 48 f7 03 08 00 00 00 testq $0x8,(%rbx) f: 0f 84 97 00 00 00 je 0xac 15: bf 01 00 00 00 mov $0x1,%edi 1a: e8 29 05 33 f7 call 0xf7330548 1f: e8 44 7c 62 f7 call 0xf7627c68 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 a9 b3 ff ff call 0xffffb3d8 <-- trapping instruction 2f: 43 80 7c 3d 00 00 cmpb $0x0,0x0(%r13,%r15,1) 35: 74 08 je 0x3f 37: 4c 89 f7 mov %r14,%rdi 3a: e8 b9 bd a5 f7 call 0xf7a5bdf8 3f: 48 rex.W