------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:2558! invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 5529 Comm: syz.0.28 Not tainted 6.3.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__pskb_pull_tail+0x3aa/0x3b0 net/core/skbuff.c:2557 Code: 89 d3 e8 79 fc ff ff 48 85 c0 74 0c 48 89 da 41 8b 45 70 e9 d4 fd ff ff 4c 89 e7 be 02 00 00 00 e8 6b bd ff ff 31 db eb b9 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90002c2b960 EFLAGS: 00010282 RAX: 00000000fffffff2 RBX: 0000000000000000 RCX: 0000000000000012 RDX: ffff8881272fd46a RSI: 000000000000001c RDI: ffff888102e44a00 RBP: ffff888102e44ac0 R08: 0000000000082820 R09: 00000000ffffffff R10: 0000000000000000 R11: ffffffff83293d70 R12: ffff888102e44a00 R13: ffffc90002c2ba88 R14: 0000000000000012 R15: ffff888102e44a00 FS: 00007f7e1897c6c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f87ca76b7e0 CR3: 00000001298a4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_cow_data+0x99/0x290 net/core/skbuff.c:4879 tipc_aead_decrypt net/tipc/crypto.c:894 [inline] tipc_crypto_rcv+0x123/0x8f0 net/tipc/crypto.c:1844 tipc_rcv+0x11e/0x4f0 net/tipc/node.c:2110 tipc_l2_rcv_msg+0x72/0xb0 net/tipc/bearer.c:653 __netif_receive_skb_list_ptype net/core/dev.c:5527 [inline] __netif_receive_skb_list_core+0x26b/0x2d0 net/core/dev.c:5570 __netif_receive_skb_list net/core/dev.c:5622 [inline] netif_receive_skb_list_internal+0x20a/0x2f0 net/core/dev.c:5713 gro_normal_list include/net/gro.h:433 [inline] napi_complete_done+0xae/0x1e0 net/core/dev.c:6053 napi_complete include/linux/netdevice.h:522 [inline] tun_get_user+0xd13/0x1260 drivers/net/tun.c:1968 tun_chr_write_iter+0x57/0xc0 drivers/net/tun.c:2035 do_iter_write+0x1cf/0x2e0 fs/read_write.c:861 vfs_writev+0x1b7/0x2a0 fs/read_write.c:934 do_writev+0x70/0x110 fs/read_write.c:977 do_syscall_64+0x46/0xc0 entry_SYSCALL_64_after_hwframe+0x73/0xdd RIP: 0033:0x7f7e17b85d19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7e1897c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f7e17d76080 RCX: 00007f7e17b85d19 RDX: 0000000000000002 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00007f7e17c01a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7e17d76080 R15: 00007ffd26f48c88 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__pskb_pull_tail+0x3aa/0x3b0 net/core/skbuff.c:2557 Code: 89 d3 e8 79 fc ff ff 48 85 c0 74 0c 48 89 da 41 8b 45 70 e9 d4 fd ff ff 4c 89 e7 be 02 00 00 00 e8 6b bd ff ff 31 db eb b9 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90002c2b960 EFLAGS: 00010282 RAX: 00000000fffffff2 RBX: 0000000000000000 RCX: 0000000000000012 RDX: ffff8881272fd46a RSI: 000000000000001c RDI: ffff888102e44a00 RBP: ffff888102e44ac0 R08: 0000000000082820 R09: 00000000ffffffff R10: 0000000000000000 R11: ffffffff83293d70 R12: ffff888102e44a00 R13: ffffc90002c2ba88 R14: 0000000000000012 R15: ffff888102e44a00 FS: 00007f7e1897c6c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f87ca76b7e0 CR3: 00000001298a4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400