------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:2446!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 24098 Comm: syz-executor.4 Not tainted 6.2.0-rc1-syzkaller-00068-gbff687b3dad6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__pskb_pull_tail+0x1196/0x1740 net/core/skbuff.c:2446
Code: 98 c8 00 00 00 e9 c7 f6 ff ff e8 05 de 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 ea dd bd f9 <0f> 0b e8 e3 dd bd f9 4c 8b 7c 24 38 49 83 ef 01 e9 fb f4 ff ff 48
RSP: 0018:ffffc90000007ad0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000fffffff2 RCX: 0000000000000100
RDX: ffff888039330100 RSI: ffffffff87c295a6 RDI: 0000000000000005
RBP: ffffc90000007b58 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff2 R11: 0000000000000000 R12: 00000000000002c0
R13: ffff888017696800 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f7506354700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7141da14a4 CR3: 000000002ac02000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 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
 deliver_skb net/core/dev.c:2182 [inline]
 dev_queue_xmit_nit+0x37e/0xb10 net/core/dev.c:2252
 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
 qdisc_run include/net/pkt_sched.h:126 [inline]
 qdisc_run include/net/pkt_sched.h:123 [inline]
 net_tx_action+0x792/0xe40 net/core/dev.c:5079
 __do_softirq+0x1fb/0xadc kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__kmem_cache_free+0xfd/0x3b0 mm/slab.c:3588
Code: f2 4c 89 ee 4c 89 e7 e8 81 e7 ff ff 48 85 db 0f 85 95 00 00 00 9c 58 f6 c4 02 0f 85 b9 00 00 00 48 85 db 74 01 fb 48 83 c4 20 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 f7 c5 ff 0f 00 00 0f 85 60 ff ff
RSP: 0018:ffffc900037af0b8 EFLAGS: 00000286
RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff226eb06
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffea0000822600 R08: 0000000000000001 R09: ffffffff9132cb87
R10: 0000000000000001 R11: 0000000000094001 R12: ffff888012440600
R13: ffff888020898c00 R14: ffffffff87c0ad5c R15: ffff888020898cc0
 skb_free_head+0xac/0x110 net/core/skbuff.c:822
 skb_release_data+0x5f4/0x870 net/core/skbuff.c:851
 skb_release_all net/core/skbuff.c:916 [inline]
 __kfree_skb net/core/skbuff.c:930 [inline]
 consume_skb net/core/skbuff.c:1098 [inline]
 consume_skb+0xcb/0x170 net/core/skbuff.c:1092
 sctp_chunk_destroy net/sctp/sm_make_chunk.c:1503 [inline]
 sctp_chunk_put+0x1c4/0x2d0 net/sctp/sm_make_chunk.c:1530
 sctp_packet_pack net/sctp/output.c:513 [inline]
 sctp_packet_transmit+0xf84/0x30d0 net/sctp/output.c:621
 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: 0033:0x7f750568c0a9
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:00007f7506354168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f75057ac050 RCX: 00007f750568c0a9
RDX: 0000000000034000 RSI: 0000000020847fff RDI: 0000000000000004
RBP: 00007f75056e7ae9 R08: 000000002005ffe4 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffca759f2ff R14: 00007f7506354300 R15: 0000000000022000
 </TASK>
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 05 de 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 ea dd bd f9 <0f> 0b e8 e3 dd bd f9 4c 8b 7c 24 38 49 83 ef 01 e9 fb f4 ff ff 48
RSP: 0018:ffffc90000007ad0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000fffffff2 RCX: 0000000000000100
RDX: ffff888039330100 RSI: ffffffff87c295a6 RDI: 0000000000000005
RBP: ffffc90000007b58 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff2 R11: 0000000000000000 R12: 00000000000002c0
R13: ffff888017696800 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f7506354700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7141da14a4 CR3: 000000002ac02000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	f2 4c 89 ee          	repnz mov %r13,%rsi
   4:	4c 89 e7             	mov    %r12,%rdi
   7:	e8 81 e7 ff ff       	callq  0xffffe78d
   c:	48 85 db             	test   %rbx,%rbx
   f:	0f 85 95 00 00 00    	jne    0xaa
  15:	9c                   	pushfq
  16:	58                   	pop    %rax
  17:	f6 c4 02             	test   $0x2,%ah
  1a:	0f 85 b9 00 00 00    	jne    0xd9
  20:	48 85 db             	test   %rbx,%rbx
  23:	74 01                	je     0x26
  25:	fb                   	sti
  26:	48 83 c4 20          	add    $0x20,%rsp
* 2a:	5b                   	pop    %rbx <-- trapping instruction
  2b:	5d                   	pop    %rbp
  2c:	41 5c                	pop    %r12
  2e:	41 5d                	pop    %r13
  30:	41 5e                	pop    %r14
  32:	41 5f                	pop    %r15
  34:	c3                   	retq
  35:	f7 c5 ff 0f 00 00    	test   $0xfff,%ebp
  3b:	0f                   	.byte 0xf
  3c:	85 60 ff             	test   %esp,-0x1(%rax)
  3f:	ff                   	.byte 0xff