------------[ cut here ]------------ skb_assert_len WARNING: CPU: 0 PID: 19366 at include/linux/skbuff.h:2562 skb_assert_len include/linux/skbuff.h:2562 [inline] WARNING: CPU: 0 PID: 19366 at include/linux/skbuff.h:2562 __dev_queue_xmit+0x2325/0x3b10 net/core/dev.c:4159 Modules linked in: CPU: 0 PID: 19366 Comm: syz-executor.5 Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:skb_assert_len include/linux/skbuff.h:2562 [inline] RIP: 0010:__dev_queue_xmit+0x2325/0x3b10 net/core/dev.c:4159 Code: 89 de e8 2e 6a 74 f9 84 db 75 21 e8 45 6e 74 f9 48 c7 c6 e0 82 5e 8b 48 c7 c7 c0 54 5e 8b c6 05 51 02 55 06 01 e8 4b 29 3c f9 <0f> 0b e8 24 6e 74 f9 0f b6 1d 3d 02 55 06 31 ff 89 de e8 f4 69 74 RSP: 0018:ffffc90015ea7690 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc900069d2000 RDX: 0000000000040000 RSI: ffffffff814c03b7 RDI: 0000000000000001 RBP: ffff88802abc5b40 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 00000000000b3560 R12: ffff88802abc5bb0 R13: ffff88802abc5c18 R14: ffff88802abc5b50 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0063) knlGS:00000000f7f2db40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fbfe106f440 CR3: 0000000085740000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dev_queue_xmit include/linux/netdevice.h:3088 [inline] __netlink_deliver_tap_skb net/netlink/af_netlink.c:307 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:325 [inline] netlink_deliver_tap+0xa89/0xcf0 net/netlink/af_netlink.c:338 __netlink_sendskb net/netlink/af_netlink.c:1283 [inline] netlink_dump+0x786/0xc50 net/netlink/af_netlink.c:2279 netlink_recvmsg+0xc56/0xec0 net/netlink/af_netlink.c:1995 sock_recvmsg_nosec net/socket.c:1019 [inline] sock_recvmsg+0xe2/0x160 net/socket.c:1040 __sys_recvfrom+0x1b0/0x2e0 net/socket.c:2196 __compat_sys_recvfrom net/compat.c:389 [inline] __do_compat_sys_socketcall+0x251/0x720 net/compat.c:479 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+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f32579 Code: 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 00 00 00 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:00000000f7f2c4a0 EFLAGS: 00000282 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00000000f7f2c4bc RDX: 0000000000000000 RSI: 00000000f734e000 RDI: 00000000f7f2c5d0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 retq 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi