skbuff: skb_over_panic: text:ffffffff8823a908 len:4096 put:4096 head:ffff888076ad5000 data:ffff888076ad5000 tail:0x1000 end:0xc0 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:113! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc5-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:113 net/core/skbuff.c:113 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 e0 3a ad 8a ff 74 24 10 ff 74 24 20 e8 7d 25 c2 ff <0f> 0b e8 d6 32 38 f8 4c 8b 64 24 18 e8 0c ee 7e f8 48 c7 c1 80 47 RSP: 0018:ffffc90000d979e0 EFLAGS: 00010286 RAX: 000000000000008b RBX: ffff888014b83dc0 RCX: 0000000000000000 RDX: ffff8880119dd700 RSI: ffffffff815f21d8 RDI: fffff520001b2f2e RBP: ffffffff8aad47c0 R08: 000000000000008b R09: 0000000000000000 R10: ffffffff815ebf7e R11: 0000000000000000 R12: ffffffff8823a908 R13: 0000000000001000 R14: ffffffff8aad3aa0 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000006dc45000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic net/core/skbuff.c:118 [inline] skb_over_panic net/core/skbuff.c:118 [inline] net/core/skbuff.c:1990 skb_put.cold+0x24/0x24 net/core/skbuff.c:1990 net/core/skbuff.c:1990 isotp_rcv_cf net/can/isotp.c:570 [inline] isotp_rcv_cf net/can/isotp.c:570 [inline] net/can/isotp.c:668 isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668 net/can/isotp.c:668 deliver net/can/af_can.c:574 [inline] deliver net/can/af_can.c:574 [inline] net/can/af_can.c:635 can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635 net/can/af_can.c:635 can_receive+0x31d/0x580 net/can/af_can.c:665 net/can/af_can.c:665 can_rcv+0x120/0x1c0 net/can/af_can.c:696 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465 net/core/dev.c:5465 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579 net/core/dev.c:5579 process_backlog+0x2a5/0x6c0 net/core/dev.c:6455 net/core/dev.c:6455 __napi_poll+0xaf/0x440 net/core/dev.c:7023 net/core/dev.c:7023 napi_poll net/core/dev.c:7090 [inline] napi_poll net/core/dev.c:7090 [inline] net/core/dev.c:7177 net_rx_action+0x801/0xb40 net/core/dev.c:7177 net/core/dev.c:7177 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd kernel/softirq.c:921 [inline] kernel/softirq.c:913 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 kernel/softirq.c:913 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kernel/smpboot.c:164 kthread+0x405/0x4f0 kernel/kthread.c:327 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 1fef7b6a22b45f10 ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113 net/core/skbuff.c:113 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 e0 3a ad 8a ff 74 24 10 ff 74 24 20 e8 7d 25 c2 ff <0f> 0b e8 d6 32 38 f8 4c 8b 64 24 18 e8 0c ee 7e f8 48 c7 c1 80 47 RSP: 0018:ffffc90000d979e0 EFLAGS: 00010286 RAX: 000000000000008b RBX: ffff888014b83dc0 RCX: 0000000000000000 RDX: ffff8880119dd700 RSI: ffffffff815f21d8 RDI: fffff520001b2f2e RBP: ffffffff8aad47c0 R08: 000000000000008b R09: 0000000000000000 R10: ffffffff815ebf7e R11: 0000000000000000 R12: ffffffff8823a908 R13: 0000000000001000 R14: ffffffff8aad3aa0 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000006dc45000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400