skbuff: skb_over_panic: text:ffffffff8837a420 len:232 put:72 head:ffff888147098000 data:ffff888147098000 tail:0xe8 end:0xc0 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:116! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3737 Comm: syz-executor.1 Not tainted 6.0.0-rc2-syzkaller-00054-gc40e8341e3b3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:116 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 c0 c7 f3 8a ff 74 24 10 ff 74 24 20 e8 dc eb c0 ff <0f> 0b e8 83 da 01 f8 4c 8b 64 24 18 e8 f9 38 4e f8 48 c7 c1 a0 d4 RSP: 0018:ffffc90004ab6e50 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffff888025d56280 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff8161f518 RDI: fffff52000956dbc RBP: ffffffff8af3d4e0 R08: 0000000000000086 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8837a420 R13: 0000000000000048 R14: ffffffff8af3c780 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0063) knlGS:00000000f7f76b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020374000 CR3: 0000000016b66000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic net/core/skbuff.c:121 [inline] skb_put.cold+0x24/0x24 net/core/skbuff.c:2045 skb_put_zero include/linux/skbuff.h:2536 [inline] dump_ah_combs net/key/af_key.c:2962 [inline] pfkey_send_acquire+0x1d00/0x2520 net/key/af_key.c:3225 km_query+0xac/0x220 net/xfrm/xfrm_state.c:2247 xfrm_state_find+0x2bfe/0x4f10 net/xfrm/xfrm_state.c:1165 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2393 [inline] xfrm_tmpl_resolve+0x2f3/0xd40 net/xfrm/xfrm_policy.c:2438 xfrm_resolve_and_create_bundle+0x123/0x2620 net/xfrm/xfrm_policy.c:2731 xfrm_lookup_with_ifid+0x22a/0x2240 net/xfrm/xfrm_policy.c:3065 xfrm_lookup net/xfrm/xfrm_policy.c:3194 [inline] xfrm_lookup_route+0x36/0x1e0 net/xfrm/xfrm_policy.c:3205 ip_route_output_flow+0x114/0x150 net/ipv4/route.c:2880 udp_sendmsg+0x1963/0x2740 net/ipv4/udp.c:1222 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x810 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmmsg+0x28d/0x460 net/socket.c:2615 __compat_sys_sendmmsg net/compat.c:357 [inline] __do_compat_sys_sendmmsg net/compat.c:364 [inline] __se_compat_sys_sendmmsg net/compat.c:361 [inline] __ia32_compat_sys_sendmmsg+0x9b/0x100 net/compat.c:361 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fbd549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7f765cc EFLAGS: 00000296 ORIG_RAX: 0000000000000159 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020007fc0 RDX: 000000000800001d RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:116 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 c0 c7 f3 8a ff 74 24 10 ff 74 24 20 e8 dc eb c0 ff <0f> 0b e8 83 da 01 f8 4c 8b 64 24 18 e8 f9 38 4e f8 48 c7 c1 a0 d4 RSP: 0018:ffffc90004ab6e50 EFLAGS: 00010286 RAX: 0000000000000086 RBX: ffff888025d56280 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff8161f518 RDI: fffff52000956dbc RBP: ffffffff8af3d4e0 R08: 0000000000000086 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8837a420 R13: 0000000000000048 R14: ffffffff8af3c780 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0063) knlGS:00000000f7f76b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f8c58e35263 CR3: 0000000016b66000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi