skbuff: skb_under_panic: text:ffffffff846e6683 len:65564 put:14 head:ffff888110340000 data:ffff88811033fff4 tail:0x10010 end:0x1fe80 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:113! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 1966 Comm: syz-executor334 Not tainted 5.15.173-syzkaller-00123-g6f0de8f8a165 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_panic net/core/skbuff.c:113 [inline] RIP: 0010:skb_under_panic+0x14c/0x150 net/core/skbuff.c:123 Code: 80 bb d2 85 48 c7 c6 c8 72 22 86 48 8b 55 c0 8b 4d d4 44 8b 45 d0 4c 8b 4d c8 53 41 55 41 54 41 57 e8 e8 9e fe 00 48 83 c4 20 <0f> 0b 66 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 41 89 f6 49 89 RSP: 0018:ffffc900009f7690 EFLAGS: 00010286 RAX: 000000000000008f RBX: ffffffff85d2bc00 RCX: 9554cd9081a98200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900009f76d0 R08: ffffffff81579fb5 R09: ffffed103ee265e8 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000010010 R13: 000000000001fe80 R14: dffffc0000000000 R15: ffff88811033fff4 FS: 00007fcd391cc6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd391abd58 CR3: 000000011fad1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_push+0xf3/0x120 net/core/skbuff.c:2077 vlan_get_protocol_dgram+0x123/0x220 net/packet/af_packet.c:552 packet_recvmsg+0x5df/0x1cd0 net/packet/af_packet.c:3521 ____sys_recvmsg+0x286/0x530 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2697 do_recvmmsg+0x36b/0x8b0 net/socket.c:2791 __sys_recvmmsg net/socket.c:2870 [inline] __do_sys_recvmmsg net/socket.c:2893 [inline] __se_sys_recvmmsg net/socket.c:2886 [inline] __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2886 x64_sys_call+0x7e5/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:300 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fcd39210509 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcd391cc168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fcd3929a428 RCX: 00007fcd39210509 RDX: 0000000000000001 RSI: 0000000020000480 RDI: 0000000000000003 RBP: 00007fcd3929a420 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000010022 R11: 0000000000000246 R12: 00007fcd3929a42c R13: 0000000000000010 R14: 00007fff6e12b3c0 R15: 00007fff6e12b4a8 Modules linked in: ---[ end trace 727e6f04353d6a94 ]--- RIP: 0010:skb_panic net/core/skbuff.c:113 [inline] RIP: 0010:skb_under_panic+0x14c/0x150 net/core/skbuff.c:123 Code: 80 bb d2 85 48 c7 c6 c8 72 22 86 48 8b 55 c0 8b 4d d4 44 8b 45 d0 4c 8b 4d c8 53 41 55 41 54 41 57 e8 e8 9e fe 00 48 83 c4 20 <0f> 0b 66 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 41 89 f6 49 89 RSP: 0018:ffffc900009f7690 EFLAGS: 00010286 RAX: 000000000000008f RBX: ffffffff85d2bc00 RCX: 9554cd9081a98200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900009f76d0 R08: ffffffff81579fb5 R09: ffffed103ee265e8 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000010010 R13: 000000000001fe80 R14: dffffc0000000000 R15: ffff88811033fff4 FS: 00007fcd391cc6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd391abd58 CR3: 000000011fad1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400