------------[ cut here ]------------ WARNING: CPU: 0 PID: 3567 at kernel/softirq.c:363 __local_bh_enable_ip+0x1b3/0x1f0 Modules linked in: CPU: 0 PID: 3567 Comm: kworker/0:7 Not tainted 5.15.153-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: rcu_gp process_srcu 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: ffffed100fcbf44a R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 0000000000000004 R14: ffffc90000007620 R15: 0000000000000201 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffec0000 CR3: 000000006135b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: fffffffffffffff8 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_hash_delete_elem+0x1a0/0x2f0 net/core/sock_map.c:945 bpf_prog_9dc0996bccb7470f+0x60/0x310 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:delay_tsc+0x58/0xd0 arch/x86/lib/delay.c:79 Code: 90 48 89 d5 48 c1 e5 20 48 09 c5 48 29 dd 4c 39 f5 73 67 bf 01 00 00 00 e8 25 f5 27 fd 65 8b 05 f6 22 d3 7b 85 c0 74 2f f3 90 01 00 00 00 e8 8e f3 27 fd e8 d9 bf ec 05 41 39 c7 75 20 0f 01 RSP: 0018:ffffc90003047ae0 EFLAGS: 00000286 RAX: 0000000080000000 RBX: 00000086dd86e5dc RCX: 0000000000000001 RDX: 0000000000000086 RSI: ffffffff8ad88fa0 RDI: 0000000000000001 RBP: 0000000000000e93 R08: ffffffff8429f004 R09: fffff52000608f2d R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000009662 R13: 1ffffffff1bc72e7 R14: 0000000000002af9 R15: 0000000000000000 try_check_zero+0x2f2/0x360 kernel/rcu/srcutree.c:702 srcu_advance_state kernel/rcu/srcutree.c:1227 [inline] process_srcu+0x1aa/0xc20 kernel/rcu/srcutree.c:1325 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 ---------------- Code disassembly (best guess): 0: 90 nop 1: 48 89 d5 mov %rdx,%rbp 4: 48 c1 e5 20 shl $0x20,%rbp 8: 48 09 c5 or %rax,%rbp b: 48 29 dd sub %rbx,%rbp e: 4c 39 f5 cmp %r14,%rbp 11: 73 67 jae 0x7a 13: bf 01 00 00 00 mov $0x1,%edi 18: e8 25 f5 27 fd call 0xfd27f542 1d: 65 8b 05 f6 22 d3 7b mov %gs:0x7bd322f6(%rip),%eax # 0x7bd3231a 24: 85 c0 test %eax,%eax 26: 74 2f je 0x57 28: f3 90 pause * 2a: bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction 2f: e8 8e f3 27 fd call 0xfd27f3c2 34: e8 d9 bf ec 05 call 0x5ecc012 39: 41 39 c7 cmp %eax,%r15d 3c: 75 20 jne 0x5e 3e: 0f .byte 0xf 3f: 01 .byte 0x1