------------[ cut here ]------------ WARNING: CPU: 0 PID: 3606 at kernel/softirq.c:376 __local_bh_enable_ip+0x1b3/0x1f0 Modules linked in: CPU: 0 PID: 3606 Comm: kworker/0:4 Not tainted 6.1.84-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: events free_work 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:ffffc90000007620 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 1ffff92000000ec8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff8897f1fb RBP: ffffc900000076d8 R08: dffffc0000000000 R09: ffffed100e567d46 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8880281aa100 R14: ffffc90000007660 R15: 0000000000000201 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c001d7d000 CR3: 00000000573e2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sock_map_delete net/core/sock_map.c:426 [inline] sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448 bpf_prog_504ea4f3ba7abdf5+0x3f/0x43 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_run2+0x1fd/0x410 kernel/trace/bpf_trace.c:2312 __bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:94 trace_kfree include/trace/events/kmem.h:94 [inline] kfree+0xf6/0x190 mm/slab_common.c:994 dummy_timer+0x838/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1982 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666 Code: 2b 00 74 08 4c 89 f7 e8 1f a8 77 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:ffffc900044d78e0 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff9200089af28 RCX: 1ffff9200089aec8 RDX: dffffc0000000000 RSI: ffffffff8aec0040 RDI: ffffffff8b3d2d20 RBP: ffffc900044d7a28 R08: dffffc0000000000 R09: fffffbfff2093045 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200089af24 R13: dffffc0000000000 R14: ffffc900044d7940 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:350 [inline] rcu_read_lock include/linux/rcupdate.h:791 [inline] page_ext_get+0x39/0x2a0 mm/page_ext.c:157 __reset_page_owner+0x32/0x1a0 mm/page_owner.c:144 reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1440 [inline] free_pcp_prepare mm/page_alloc.c:1490 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3453 __vunmap+0x834/0x9a0 mm/vmalloc.c:2717 free_work+0x57/0x80 mm/vmalloc.c:97 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 ---------------- Code disassembly (best guess): 0: 2b 00 sub (%rax),%eax 2: 74 08 je 0xc 4: 4c 89 f7 mov %r14,%rdi 7: e8 1f a8 77 00 call 0x77a82b c: f6 44 24 61 02 testb $0x2,0x61(%rsp) 11: 0f 85 84 01 00 00 jne 0x19b 17: 41 f7 c7 00 02 00 00 test $0x200,%r15d 1e: 74 01 je 0x21 20: fb sti 21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp) 28: e0 45 * 2a: 4b c7 44 25 00 00 00 movq $0x0,0x0(%r13,%r12,1) <-- trapping instruction 31: 00 00 33: 43 c7 44 25 09 00 00 movl $0x0,0x9(%r13,%r12,1) 3a: 00 00 3c: 43 rex.XB 3d: c7 .byte 0xc7 3e: 44 rex.R 3f: 25 .byte 0x25