------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:2849! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 12730 Comm: syz.4.1916 Not tainted 6.13.0-rc2-syzkaller-00485-gc1bad69f8baf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848 Code: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 a2 33 78 f8 e9 25 f1 ff ff e8 68 d2 11 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 59 d2 11 f8 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003216f30 EFLAGS: 00010293 RAX: ffffffff898d8be7 RBX: 00000000fffffff2 RCX: ffff88805d913c00 RDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000 RBP: ffff88805a45e2c0 R08: ffffffff898d7924 R09: 1ffff1100b48bcdc R10: dffffc0000000000 R11: ffffed100b48bcdd R12: ffff88805c2e0c10 R13: ffff88805c2e0b40 R14: ffff88805c2e0bb4 R15: ffff88805c2e0b40 FS: 00007fc9c8ae66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc9c8ae5f98 CR3: 00000000563b8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_cow_data+0x2da/0xcb0 net/core/skbuff.c:5284 tipc_aead_decrypt net/tipc/crypto.c:894 [inline] tipc_crypto_rcv+0x402/0x24e0 net/tipc/crypto.c:1844 tipc_rcv+0x57e/0x12a0 net/tipc/node.c:2109 tipc_l2_rcv_msg+0x2bd/0x450 net/tipc/bearer.c:668 __netif_receive_skb_list_ptype net/core/dev.c:5720 [inline] __netif_receive_skb_list_core+0x8b7/0x980 net/core/dev.c:5762 __netif_receive_skb_list net/core/dev.c:5814 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5905 gro_normal_list include/net/gro.h:515 [inline] napi_complete_done+0x2b5/0x870 net/core/dev.c:6256 napi_complete include/linux/netdevice.h:568 [inline] tun_get_user+0x2ea0/0x4890 drivers/net/tun.c:1982 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2057 do_iter_readv_writev+0x600/0x880 vfs_writev+0x376/0xba0 fs/read_write.c:1050 do_writev+0x1b6/0x360 fs/read_write.c:1096 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc9c7d85d29 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:00007fc9c8ae6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007fc9c7f76160 RCX: 00007fc9c7d85d29 RDX: 0000000000000002 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00007fc9c7e01a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fc9c7f76160 R15: 00007ffd795d9888 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848 Code: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 a2 33 78 f8 e9 25 f1 ff ff e8 68 d2 11 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 59 d2 11 f8 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003216f30 EFLAGS: 00010293 RAX: ffffffff898d8be7 RBX: 00000000fffffff2 RCX: ffff88805d913c00 RDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000 RBP: ffff88805a45e2c0 R08: ffffffff898d7924 R09: 1ffff1100b48bcdc R10: dffffc0000000000 R11: ffffed100b48bcdd R12: ffff88805c2e0c10 R13: ffff88805c2e0b40 R14: ffff88805c2e0bb4 R15: ffff88805c2e0b40 FS: 00007fc9c8ae66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc9c8ae5f98 CR3: 00000000563b8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400