------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:2446! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 3 PID: 16724 Comm: syz-executor.1 Not tainted 6.1.0-syzkaller-14565-ga27405b2ed9c #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__pskb_pull_tail+0x1196/0x1740 net/core/skbuff.c:2446 Code: 98 c8 00 00 00 e9 c7 f6 ff ff e8 85 e1 bd f9 48 8b 3c 24 be 02 00 00 00 e8 b7 0d ff ff 45 31 e4 e9 b4 f6 ff ff e8 6a e1 bd f9 <0f> 0b e8 63 e1 bd f9 4c 8b 7c 24 38 49 83 ef 01 e9 fb f4 ff ff 48 RSP: 0018:ffffc900057d67c0 EFLAGS: 00010212 RAX: 0000000000024377 RBX: 00000000fffffff2 RCX: ffffc900048b2000 RDX: 0000000000040000 RSI: ffffffff87c291c6 RDI: 0000000000000005 RBP: ffffc900057d6848 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff2 R11: 0000000000000000 R12: 00000000000002c0 R13: ffff88801ce02800 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fed8111f700(0000) GS:ffff88802c900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb4771ad988 CR3: 000000006d256000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_condense+0x140/0x2d0 net/core/skbuff.c:6485 ___pskb_trim+0x979/0x11b0 net/core/skbuff.c:2381 __pskb_trim include/linux/skbuff.h:3016 [inline] pskb_trim include/linux/skbuff.h:3023 [inline] packet_rcv+0xd84/0x15c0 net/packet/af_packet.c:2200 dev_queue_xmit_nit+0x7fd/0xb10 net/core/dev.c:2290 xmit_one net/core/dev.c:3579 [inline] dev_hard_start_xmit+0xac/0x990 net/core/dev.c:3599 sch_direct_xmit+0x1a3/0xbe0 net/sched/sch_generic.c:342 qdisc_restart net/sched/sch_generic.c:407 [inline] __qdisc_run+0x4da/0x1750 net/sched/sch_generic.c:415 __dev_xmit_skb net/core/dev.c:3873 [inline] __dev_queue_xmit+0x230b/0x3ba0 net/core/dev.c:4215 dev_queue_xmit include/linux/netdevice.h:3035 [inline] neigh_hh_output include/net/neighbour.h:530 [inline] neigh_output include/net/neighbour.h:544 [inline] ip6_finish_output2+0xfa3/0x1530 net/ipv6/ip6_output.c:134 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline] ip6_finish_output+0x694/0x1170 net/ipv6/ip6_output.c:206 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:302 [inline] NF_HOOK include/linux/netfilter.h:296 [inline] ip6_xmit+0x11f7/0x1c60 net/ipv6/ip6_output.c:343 sctp_v6_xmit+0xccc/0x1110 net/sctp/ipv6.c:250 sctp_packet_transmit+0x22ea/0x30d0 net/sctp/output.c:653 sctp_outq_flush_transports+0x406/0x7b0 net/sctp/outqueue.c:1173 sctp_outq_flush net/sctp/outqueue.c:1221 [inline] sctp_outq_uncork+0x189/0x200 net/sctp/outqueue.c:764 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1816 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline] sctp_do_sm+0x2823/0x5290 net/sctp/sm_sideeffect.c:1170 sctp_assoc_bh_rcv+0x38a/0x6c0 net/sctp/associola.c:1051 sctp_inq_push+0x1d6/0x270 net/sctp/inqueue.c:80 sctp_backlog_rcv+0x19a/0x5b0 net/sctp/input.c:331 sk_backlog_rcv include/net/sock.h:1113 [inline] __release_sock+0x133/0x3b0 net/core/sock.c:2928 release_sock+0x58/0x1b0 net/core/sock.c:3485 sctp_wait_for_connect+0x416/0x5c0 net/sctp/socket.c:9317 sctp_sendmsg_to_asoc+0x11d1/0x1a30 net/sctp/socket.c:1879 sctp_sendmsg+0xf05/0x1d90 net/sctp/socket.c:2025 inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:827 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 __sys_sendto+0x23a/0x340 net/socket.c:2117 __do_sys_sendto net/socket.c:2129 [inline] __se_sys_sendto net/socket.c:2125 [inline] __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fed8048c0a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fed8111f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fed805abf80 RCX: 00007fed8048c0a9 RDX: 000000000002d274 RSI: 0000000020847fff RDI: 0000000000000003 RBP: 00007fed804e7ae9 R08: 000000002005ffe4 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc9d0d004f R14: 00007fed8111f300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__pskb_pull_tail+0x1196/0x1740 net/core/skbuff.c:2446 Code: 98 c8 00 00 00 e9 c7 f6 ff ff e8 85 e1 bd f9 48 8b 3c 24 be 02 00 00 00 e8 b7 0d ff ff 45 31 e4 e9 b4 f6 ff ff e8 6a e1 bd f9 <0f> 0b e8 63 e1 bd f9 4c 8b 7c 24 38 49 83 ef 01 e9 fb f4 ff ff 48 RSP: 0018:ffffc900057d67c0 EFLAGS: 00010212 RAX: 0000000000024377 RBX: 00000000fffffff2 RCX: ffffc900048b2000 RDX: 0000000000040000 RSI: ffffffff87c291c6 RDI: 0000000000000005 RBP: ffffc900057d6848 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff2 R11: 0000000000000000 R12: 00000000000002c0 R13: ffff88801ce02800 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fed8111f700(0000) GS:ffff88802c900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb4771ad988 CR3: 000000006d256000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400