BUG: unable to handle page fault for address: ffffe630188daf02 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1503a067 P4D 1503a067 PUD 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 7523 Comm: syz-executor288 Not tainted 6.10.0-syzkaller-11840-g933069701c1b-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:list_empty include/linux/list.h:373 [inline] RIP: 0010:bpf_net_ctx_get_all_used_flush_lists+0x16b/0x390 include/linux/filter.h:846 Code: e6 08 31 ff e8 f6 c8 29 f8 4c 89 f8 48 83 e0 08 75 07 e8 08 c4 29 f8 eb 56 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 47 0f 91 f8 48 8b 03 48 39 d8 74 2a RSP: 0000:ffffc90000007a28 EFLAGS: 00010a02 RAX: 1fffea30188daf02 RBX: ffff5180c46d7810 RCX: dffffc0000000000 RDX: 0000000080000100 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffffffff8ddf3a40 R08: ffffffff8969be0a R09: 1ffffffff1f5f50d R10: dffffc0000000000 R11: fffffbfff1f5f50e R12: 1ffff92000000f5c R13: ffffc9000b2d77c0 R14: ffffc90000007ae0 R15: 000000000165af0c FS: 0000555589e57380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffe630188daf02 CR3: 000000007d0c8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xdp_do_check_flushed+0x130/0x2f0 net/core/filter.c:4298 __napi_poll+0xe4/0x490 net/core/dev.c:6774 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6962 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 common_interrupt+0xaa/0xd0 arch/x86/kernel/irq.c:278 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693 RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763 Code: 2b 00 74 08 4c 89 f7 e8 ba 1f 8b 00 f6 44 24 61 02 0f 85 85 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: 0000:ffffc9000b2d7620 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff9200165aed0 RCX: 697b9cec6cfc8500 RDX: dffffc0000000000 RSI: ffffffff8bcae720 RDI: ffffffff8c20a480 RBP: ffffc9000b2d7778 R08: ffffffff930028af R09: 1ffffffff2600515 R10: dffffc0000000000 R11: fffffbfff2600516 R12: 1ffff9200165aecc R13: dffffc0000000000 R14: ffffc9000b2d7680 R15: 0000000000000246 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1675 [inline] sb_start_write+0x4d/0x1c0 include/linux/fs.h:1811 mnt_want_write+0x3f/0x90 fs/namespace.c:515 do_unlinkat+0x1fe/0x830 fs/namei.c:4469 do_coredump+0x2247/0x2a30 fs/coredump.c:678 get_signal+0x13fa/0x1740 kernel/signal.c:2902 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] irqentry_exit_to_user_mode+0x79/0x280 kernel/entry/common.c:231 exc_page_fault+0x590/0x8c0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fdae0dfb15e Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 d2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f RSP: 002b:00007ffcbd96f8c8 EFLAGS: 00010287 RAX: 00007ffcbd96f8e0 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000000003ff RSI: 0000000000000000 RDI: 00007ffcbd96f8e0 RBP: 00007ffcbd96f8e0 R08: 00000000000003ff R09: 00007ffcbd96fe28 R10: 00007ffcbd96fe28 R11: 0000000000000246 R12: 6666666666666667 R13: 0000000000000000 R14: 00007ffcbd96fd30 R15: 00007ffcbd96fd20 Modules linked in: CR2: ffffe630188daf02 ---[ end trace 0000000000000000 ]--- RIP: 0010:list_empty include/linux/list.h:373 [inline] RIP: 0010:bpf_net_ctx_get_all_used_flush_lists+0x16b/0x390 include/linux/filter.h:846 Code: e6 08 31 ff e8 f6 c8 29 f8 4c 89 f8 48 83 e0 08 75 07 e8 08 c4 29 f8 eb 56 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 47 0f 91 f8 48 8b 03 48 39 d8 74 2a RSP: 0000:ffffc90000007a28 EFLAGS: 00010a02 RAX: 1fffea30188daf02 RBX: ffff5180c46d7810 RCX: dffffc0000000000 RDX: 0000000080000100 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffffffff8ddf3a40 R08: ffffffff8969be0a R09: 1ffffffff1f5f50d R10: dffffc0000000000 R11: fffffbfff1f5f50e R12: 1ffff92000000f5c R13: ffffc9000b2d77c0 R14: ffffc90000007ae0 R15: 000000000165af0c FS: 0000555589e57380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffe630188daf02 CR3: 000000007d0c8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e6 08 out %al,$0x8 2: 31 ff xor %edi,%edi 4: e8 f6 c8 29 f8 call 0xf829c8ff 9: 4c 89 f8 mov %r15,%rax c: 48 83 e0 08 and $0x8,%rax 10: 75 07 jne 0x19 12: e8 08 c4 29 f8 call 0xf829c41f 17: eb 56 jmp 0x6f 19: 48 89 d8 mov %rbx,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 48 89 df mov %rbx,%rdi 33: e8 47 0f 91 f8 call 0xf8910f7f 38: 48 8b 03 mov (%rbx),%rax 3b: 48 39 d8 cmp %rbx,%rax 3e: 74 2a je 0x6a