Oops: general protection fault, probably for non-canonical address 0xfbd5a5d5a0000001: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0xdead4ead00000008-0xdead4ead0000000f] CPU: 0 UID: 0 PID: 7555 Comm: syz.1.565 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:__list_del include/linux/list.h:195 [inline] RIP: 0010:__list_del_clearprev include/linux/list.h:209 [inline] RIP: 0010:__dev_flush+0x114/0x1e0 kernel/bpf/devmap.c:428 Code: 4c 8b b3 80 00 00 00 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 9c 00 00 00 49 8d 7e 08 4c 8b ab 88 00 00 00 48 89 f8 48 c1 e8 03 <80> 3c 28 00 75 7a 4c 89 e8 4d 89 6e 08 48 c1 e8 03 80 3c 28 00 75 RSP: 0018:ffffc90000007c80 EFLAGS: 00010a02 RAX: 1bd5a9d5a0000001 RBX: ffff8880b9244d00 RCX: ffffffff81af9f2f RDX: ffff888022f2bc00 RSI: fffff52000000f71 RDI: dead4ead00000009 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dead4eacffffff81 R13: 0000000000000000 R14: dead4ead00000001 R15: ffffc9000327fa68 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc05854e40 CR3: 00000000792a2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xdp_do_check_flushed+0x40a/0x4e0 net/core/filter.c:4307 __napi_poll.constprop.0+0xd1/0x550 net/core/dev.c:6774 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0xa92/0x1010 net/core/dev.c:6962 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649 common_interrupt+0xb0/0xd0 arch/x86/kernel/irq.c:278 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 c6 31 54 f6 48 89 df e8 de ae 54 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 35 25 46 f6 65 8b 05 d6 a6 ef 74 85 c0 74 16 5b RSP: 0018:ffffc9000327fa68 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff88813fffad40 RCX: 1ffffffff28c5550 RDX: 0000000000000000 RSI: ffffffff8b4cc580 RDI: ffffffff8bb08c00 RBP: 0000000000000246 R08: 0000000000000001 R09: fffffbfff28c50d8 R10: ffffffff946286c7 R11: dffffc0000000000 R12: ffff88813fffa740 R13: 000000000000003f R14: ffff88813fffad38 R15: ffff8880b9244dc0 free_unref_page_commit+0x515/0xfe0 mm/page_alloc.c:2587 free_unref_page+0x74d/0xe40 mm/page_alloc.c:2635 __folio_put+0x31c/0x3e0 mm/swap.c:128 folio_put include/linux/mm.h:1486 [inline] put_page include/linux/mm.h:1558 [inline] do_exit+0x2453/0x2bb0 kernel/exit.c:921 do_group_exit+0xd3/0x2a0 kernel/exit.c:1031 get_signal+0x25fd/0x2770 kernel/signal.c:2917 arch_do_signal_or_restart+0x90/0x7e0 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] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1820d77299 Code: Unable to access opcode bytes at 0x7f1820d7726f. RSP: 002b:00007f18207ff0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f1820f05f88 RCX: 00007f1820d77299 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1820f05f88 RBP: 00007f1820f05f80 R08: 00007f18207ff6c0 R09: 00007f18207ff6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1820f05f8c R13: 000000000000000b R14: 00007fffa7691c50 R15: 00007fffa7691d38 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del include/linux/list.h:195 [inline] RIP: 0010:__list_del_clearprev include/linux/list.h:209 [inline] RIP: 0010:__dev_flush+0x114/0x1e0 kernel/bpf/devmap.c:428 Code: 4c 8b b3 80 00 00 00 48 89 f8 48 c1 e8 03 80 3c 28 00 0f 85 9c 00 00 00 49 8d 7e 08 4c 8b ab 88 00 00 00 48 89 f8 48 c1 e8 03 <80> 3c 28 00 75 7a 4c 89 e8 4d 89 6e 08 48 c1 e8 03 80 3c 28 00 75 RSP: 0018:ffffc90000007c80 EFLAGS: 00010a02 RAX: 1bd5a9d5a0000001 RBX: ffff8880b9244d00 RCX: ffffffff81af9f2f RDX: ffff888022f2bc00 RSI: fffff52000000f71 RDI: dead4ead00000009 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dead4eacffffff81 R13: 0000000000000000 R14: dead4ead00000001 R15: ffffc9000327fa68 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc05854e40 CR3: 00000000792a2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 4c 8b b3 80 00 00 00 mov 0x80(%rbx),%r14 7: 48 89 f8 mov %rdi,%rax a: 48 c1 e8 03 shr $0x3,%rax e: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 12: 0f 85 9c 00 00 00 jne 0xb4 18: 49 8d 7e 08 lea 0x8(%r14),%rdi 1c: 4c 8b ab 88 00 00 00 mov 0x88(%rbx),%r13 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) <-- trapping instruction 2e: 75 7a jne 0xaa 30: 4c 89 e8 mov %r13,%rax 33: 4d 89 6e 08 mov %r13,0x8(%r14) 37: 48 c1 e8 03 shr $0x3,%rax 3b: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 3f: 75 .byte 0x75