skbuff: skb_over_panic: text:ffffffff87ffc96b len:4096 put:4096 head:ffff88801e9c6c00 data:ffff88801e9c6c00 tail:0x1000 end:0xc0 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:111! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.13.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:111 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 60 82 68 8a ff 74 24 10 ff 74 24 20 e8 fb 37 c4 ff <0f> 0b e8 b7 b1 60 f8 4c 8b 64 24 18 e8 7d 04 a6 f8 48 c7 c1 a0 8e RSP: 0018:ffffc90000d97990 EFLAGS: 00010282 RAX: 000000000000008b RBX: ffff8880216cbc80 RCX: 0000000000000000 RDX: ffff8880123ed4c0 RSI: ffffffff815ce2a5 RDI: fffff520001b2f24 RBP: ffffffff8a688ee0 R08: 000000000000008b R09: 0000000000000000 R10: ffffffff815c810e R11: 0000000000000000 R12: ffffffff87ffc96b R13: 0000000000001000 R14: ffffffff8a688220 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000544038 CR3: 000000001db09000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic net/core/skbuff.c:116 [inline] skb_put.cold+0x24/0x24 net/core/skbuff.c:1922 isotp_rcv_cf net/can/isotp.c:570 [inline] isotp_rcv+0xa4b/0x1f00 net/can/isotp.c:668 deliver net/can/af_can.c:574 [inline] can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635 can_receive+0x336/0x580 net/can/af_can.c:665 can_rcv+0x120/0x1c0 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5459 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5573 process_backlog+0x232/0x6c0 net/core/dev.c:6437 __napi_poll+0xaf/0x440 net/core/dev.c:6992 napi_poll net/core/dev.c:7059 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7146 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace 60863e2e7c500509 ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:111 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 60 82 68 8a ff 74 24 10 ff 74 24 20 e8 fb 37 c4 ff <0f> 0b e8 b7 b1 60 f8 4c 8b 64 24 18 e8 7d 04 a6 f8 48 c7 c1 a0 8e RSP: 0018:ffffc90000d97990 EFLAGS: 00010282 RAX: 000000000000008b RBX: ffff8880216cbc80 RCX: 0000000000000000 RDX: ffff8880123ed4c0 RSI: ffffffff815ce2a5 RDI: fffff520001b2f24 RBP: ffffffff8a688ee0 R08: 000000000000008b R09: 0000000000000000 R10: ffffffff815c810e R11: 0000000000000000 R12: ffffffff87ffc96b R13: 0000000000001000 R14: ffffffff8a688220 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000544038 CR3: 000000001db09000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400