RBP: 00007f6a4352d6dc R08: 0000000000000000 R09: 0000000000000001 R10: 00007f6a43485087 R11: 0000000000000293 R12: 00007f6a435604ec R13: 00007f6a434852f0 R14: 00007f6a435604e8 R15: 0000000000000001 stack segment: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3658 Comm: syz-executor635 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_clone+0xd1/0x360 net/core/skbuff.c:1513 Code: 3c 23 00 74 08 48 89 ef e8 cc e6 b5 f9 4c 8b 75 00 4d 85 f6 0f 85 44 01 00 00 e8 9a 13 6a f9 4d 8d 77 7e 4c 89 f5 48 c1 ed 03 <42> 8a 44 25 00 84 c0 0f 85 ba 01 00 00 41 0f b6 1e 83 e3 0c bf 04 RSP: 0018:ffffc9000287f3a0 EFLAGS: 00010207 RAX: ffffffff881a8588 RBX: ffff88807f7b8a10 RCX: ffff88807c873a00 RDX: 0000000000000000 RSI: 0000000000000a20 RDI: 0000000000000000 RBP: 000000000000000f R08: 0000000000000a20 R09: 00000000ffffffff R10: fffffbfff197f1c7 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000a20 R14: 000000000000007e R15: 0000000000000000 FS: 00007f6a43485700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6a43510530 CR3: 0000000019821000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hsr_forward_skb+0xe29/0x1ff0 net/hsr/hsr_forward.c:620 hsr_handle_frame+0x518/0x6c0 net/hsr/hsr_slave.c:69 __netif_receive_skb_core+0x14d8/0x3e10 net/core/dev.c:5359 __netif_receive_skb_one_core net/core/dev.c:5463 [inline] __netif_receive_skb+0x120/0x500 net/core/dev.c:5579 netif_receive_skb_internal+0x108/0x360 net/core/dev.c:5665 netif_receive_skb+0x19/0x30 net/core/dev.c:5724 tun_rx_batched drivers/net/tun.c:1465 [inline] tun_get_user+0x2d4c/0x39e0 drivers/net/tun.c:1912 tun_chr_write_iter+0x10a/0x1e0 drivers/net/tun.c:1942 call_write_iter include/linux/fs.h:2162 [inline] new_sync_write fs/read_write.c:503 [inline] vfs_write+0xb11/0xe90 fs/read_write.c:590 ksys_write+0x18f/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f6a4349821f Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007f6a434852c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f6a435604e0 RCX: 00007f6a4349821f RDX: 000000000000000e RSI: 0000000020000100 RDI: 00000000000000c8 RBP: 00007f6a4352d6dc R08: 0000000000000000 R09: 0000000000000001 R10: 00007f6a43485087 R11: 0000000000000293 R12: 00007f6a435604ec R13: 00007f6a434852f0 R14: 00007f6a435604e8 R15: 0000000000000001 Modules linked in: ---[ end trace 3c696905080aa5fc ]--- RIP: 0010:skb_clone+0xd1/0x360 net/core/skbuff.c:1513 Code: 3c 23 00 74 08 48 89 ef e8 cc e6 b5 f9 4c 8b 75 00 4d 85 f6 0f 85 44 01 00 00 e8 9a 13 6a f9 4d 8d 77 7e 4c 89 f5 48 c1 ed 03 <42> 8a 44 25 00 84 c0 0f 85 ba 01 00 00 41 0f b6 1e 83 e3 0c bf 04 RSP: 0018:ffffc9000287f3a0 EFLAGS: 00010207 RAX: ffffffff881a8588 RBX: ffff88807f7b8a10 RCX: ffff88807c873a00 RDX: 0000000000000000 RSI: 0000000000000a20 RDI: 0000000000000000 RBP: 000000000000000f R08: 0000000000000a20 R09: 00000000ffffffff R10: fffffbfff197f1c7 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000a20 R14: 000000000000007e R15: 0000000000000000 FS: 00007f6a43485700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6a43510530 CR3: 0000000019821000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 3c 23 cmp $0x23,%al 2: 00 74 08 48 add %dh,0x48(%rax,%rcx,1) 6: 89 ef mov %ebp,%edi 8: e8 cc e6 b5 f9 callq 0xf9b5e6d9 d: 4c 8b 75 00 mov 0x0(%rbp),%r14 11: 4d 85 f6 test %r14,%r14 14: 0f 85 44 01 00 00 jne 0x15e 1a: e8 9a 13 6a f9 callq 0xf96a13b9 1f: 4d 8d 77 7e lea 0x7e(%r15),%r14 23: 4c 89 f5 mov %r14,%rbp 26: 48 c1 ed 03 shr $0x3,%rbp * 2a: 42 8a 44 25 00 mov 0x0(%rbp,%r12,1),%al <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 ba 01 00 00 jne 0x1f1 37: 41 0f b6 1e movzbl (%r14),%ebx 3b: 83 e3 0c and $0xc,%ebx 3e: bf .byte 0xbf 3f: 04 .byte 0x4