------------[ cut here ]------------ net/hsr/hsr_forward.c:533: Malformed frame (port_src hsr0) WARNING: CPU: 0 PID: 23620 at net/hsr/hsr_forward.c:532 hsr_forward_skb+0x112a/0x17d0 net/hsr/hsr_forward.c:532 Modules linked in: CPU: 0 PID: 23620 Comm: syz-executor.2 Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hsr_forward_skb+0x112a/0x17d0 net/hsr/hsr_forward.c:532 Code: f3 ff ff e8 18 a9 b4 f8 4c 89 e1 ba 15 02 00 00 48 c7 c6 80 6a 91 8a 48 c7 c7 a0 6b 91 8a c6 05 f2 55 ab 04 01 e8 c4 0b 0b 00 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc90017a678e0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815b9465 RDI: fffff52002f4cf0e RBP: ffff88808ef7f8c0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815b78bb R11: 0000000000000000 R12: ffff88806543c000 R13: ffff88802d63f700 R14: ffff88802d63f710 R15: 0000000000000000 FS: 00007fd3b9910700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000050d730 CR3: 000000002542c000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hsr_dev_xmit+0x78/0xd0 net/hsr/hsr_device.c:220 __netdev_start_xmit include/linux/netdevice.h:4776 [inline] netdev_start_xmit include/linux/netdevice.h:4790 [inline] __dev_direct_xmit+0x527/0x730 net/core/dev.c:4219 dev_direct_xmit include/linux/netdevice.h:2857 [inline] packet_direct_xmit+0x1a5/0x280 net/packet/af_packet.c:244 packet_snd net/packet/af_packet.c:3006 [inline] packet_sendmsg+0x241f/0x5310 net/packet/af_packet.c:3031 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 __sys_sendto+0x21c/0x320 net/socket.c:1975 __do_sys_sendto net/socket.c:1987 [inline] __se_sys_sendto net/socket.c:1983 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1983 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e149 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd3b990fc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000045e149 RDX: 000000000000000e RSI: 0000000020000300 RDI: 0000000000000003 RBP: 000000000119bfd8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00000000016afb7f R14: 00007fd3b99109c0 R15: 000000000119bf8c