program: setsockopt$inet6_tcp_TCP_MD5SIG(0xffffffffffffffff, 0x6, 0xe, &(0x7f0000000300)={@in6={{0xa, 0x4e01, 0x5, @loopback, 0xa}}, 0x0, 0x0, 0x3d, 0x0, "bb02a3c364ca41d6357e544524474004000b42a21d7214bf92494925208a0e2f964e0000c534a6324d6193fcf19b2df3ee818afaa4ff1f56c54dc46d8b6d2ccd008aa0cc1dc2767bbe00"}, 0xd8) r0 = socket$kcm(0x23, 0x5, 0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x40241, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0xc201}) setsockopt$sock_int(r0, 0x1, 0x6, &(0x7f0000000240)=0x9, 0x4) listen(r0, 0x800) r2 = socket$kcm(0x10, 0x2, 0x0) sendmsg$inet(r2, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000f00)=[{&(0x7f0000000200)="5c00000014006b05c84e21000ab16d6e230675f811000000440002005817d30461bc24eeb556a7ef595105ea1698fa51f60a64c9f408000000e786a6d0bdbdc3d44bd70011b6c0504bb9189d9193e9bd00"/92, 0x5c}], 0x1, 0x0, 0x0, 0x1f00c00e}, 0x240040c4) r3 = socket$phonet_pipe(0x23, 0x5, 0x2) connect$phonet_pipe(r3, &(0x7f0000000040)={0x23, 0x0, 0x58}, 0x10) socket$caif_seqpacket(0x25, 0x5, 0x5) socket$can_raw(0x1d, 0x3, 0x1) r4 = accept4(r0, 0x0, 0x0, 0x0) sendto$inet(r4, &(0x7f0000000080)="78432f976fab22979b06e0a0714f845472184dcc09ed86ce8a3981e291117d4810cff7210a13219febc354a019991dc9f80bf3542e23bc7e93e9a1f3d59ad5638fcabf6f1dac06cd1b0481717ff13a51a4d0e2f7d731d5fcd36e9b5f1963ea0ff5566ddc428dd7fb8aed7e1dad6dc900c7e7877cccb07f35d9c5a348b716ef145e0b6e47faca93ffa502e283d99e6207a3052f809cdc99d7d4a8c0a9ad09e63e", 0xa0, 0x4000, 0x0, 0x0) r5 = socket$kcm(0x2, 0xa, 0x2) ioctl$SIOCSIFHWADDR(r5, 0x8914, &(0x7f0000000180)={'syzkaller1\x00', @link_local}) r6 = syz_open_dev$usbfs(&(0x7f0000000040), 0x400000001ff, 0x101301) ioctl$USBDEVFS_SUBMITURB(r6, 0x8038550a, &(0x7f0000000280)=@urb_type_control={0x2, {}, 0xfffffff8, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20000, 0x0}) write$tun(r1, &(0x7f0000000380)=ANY=[@ANYBLOB="1c0000f500000000000000862dfdff000000"], 0x78) [ 84.713086][ T5328] netlink: 'syz.0.0': attribute type 2 has an invalid length. [ 84.790274][ T5328] ------------[ cut here ]------------ [ 84.792718][ T5328] kernel BUG at net/phonet/socket.c:213! [ 84.795166][ T5328] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 84.797928][ T5328] CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 84.801722][ T5328] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 84.806100][ T5328] RIP: 0010:pn_socket_sendmsg+0x240/0x250 [ 84.808700][ T5328] Code: cc cc cc e8 82 83 d2 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 5b d5 4c f7 e9 f7 fe ff ff e8 71 b4 e0 f6 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 [ 84.816844][ T5328] RSP: 0018:ffffc9000e367c00 EFLAGS: 00010287 [ 84.819513][ T5328] RAX: ffffffff8ae4709f RBX: 0000000000000000 RCX: 0000000000100000 [ 84.823085][ T5328] RDX: ffffc9000eb89000 RSI: 0000000000000039 RDI: 000000000000003a [ 84.826478][ T5328] RBP: ffffc9000e367cb0 R08: ffffffff90333db7 R09: 1ffffffff20667b6 [ 84.829984][ T5328] R10: dffffc0000000000 R11: fffffbfff20667b7 R12: dffffc0000000000 [ 84.833613][ T5328] R13: ffff888046772a40 R14: ffff888042b5ba80 R15: 1ffff92001c6cf84 [ 84.837008][ T5328] FS: 00007f912c18f6c0(0000) GS:ffff88808c820000(0000) knlGS:0000000000000000 [ 84.840780][ T5328] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.843792][ T5328] CR2: 00007f912b5ed6b8 CR3: 0000000043bac000 CR4: 0000000000352ef0 [ 84.847258][ T5328] Call Trace: [ 84.848867][ T5328] [ 84.850360][ T5328] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 84.854985][ T5328] ? __pfx_pn_socket_sendmsg+0x10/0x10 [ 84.857486][ T5328] ? aa_sock_msg_perm+0xf1/0x1b0 [ 84.859759][ T5328] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 84.862132][ T5328] ? __pfx_pn_socket_sendmsg+0x10/0x10 [ 84.864300][ T5328] __sys_sendto+0x672/0x710 [ 84.866317][ T5328] ? __pfx___sys_sendto+0x10/0x10 [ 84.868542][ T5328] ? do_futex+0x333/0x420 [ 84.870544][ T5328] ? rcu_is_watching+0x15/0xb0 [ 84.872658][ T5328] __x64_sys_sendto+0xde/0x100 [ 84.874817][ T5328] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.877541][ T5328] do_syscall_64+0x15f/0xf80 [ 84.879677][ T5328] ? trace_irq_disable+0x3b/0x140 [ 84.881884][ T5328] ? clear_bhb_loop+0x40/0x90 [ 84.883984][ T5328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.886615][ T5328] RIP: 0033:0x7f912b39c819 [ 84.888567][ T5328] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 84.897152][ T5328] RSP: 002b:00007f912c18efe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 84.900777][ T5328] RAX: ffffffffffffffda RBX: 00007f912b615fa0 RCX: 00007f912b39c819 [ 84.904228][ T5328] RDX: 00000000000000a0 RSI: 0000200000000080 RDI: 0000000000000009 [ 84.907776][ T5328] RBP: 00007f912b432c91 R08: 0000000000000000 R09: 0000000000000000 [ 84.911178][ T5328] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000000 [ 84.914621][ T5328] R13: 00007f912b616038 R14: 00007f912b615fa0 R15: 00007ffc5fc9c988 [ 84.917986][ T5328] [ 84.919317][ T5328] Modules linked in: [ 84.921477][ T5328] ---[ end trace 0000000000000000 ]--- [ 84.929466][ T5329] syz.0.0 uses obsolete (PF_INET,SOCK_PACKET) [ 84.932294][ T5328] RIP: 0010:pn_socket_sendmsg+0x240/0x250 [ 84.936937][ T5328] Code: cc cc cc e8 82 83 d2 00 89 d9 80 e1 07 fe c1 38 c1 0f 8c 04 ff ff ff 48 89 df e8 5b d5 4c f7 e9 f7 fe ff ff e8 71 b4 e0 f6 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 [ 84.947636][ T5328] RSP: 0018:ffffc9000e367c00 EFLAGS: 00010287 [ 84.950610][ T5328] RAX: ffffffff8ae4709f RBX: 0000000000000000 RCX: 0000000000100000 [ 84.954230][ T5328] RDX: ffffc9000eb89000 RSI: 0000000000000039 RDI: 000000000000003a [ 84.957754][ T5328] RBP: ffffc9000e367cb0 R08: ffffffff90333db7 R09: 1ffffffff20667b6 [ 84.961722][ T5328] R10: dffffc0000000000 R11: fffffbfff20667b7 R12: dffffc0000000000 [ 84.965157][ T5328] R13: ffff888046772a40 R14: ffff888042b5ba80 R15: 1ffff92001c6cf84 [ 84.968569][ T5328] FS: 00007f912c18f6c0(0000) GS:ffff88808c820000(0000) knlGS:0000000000000000 [ 84.972694][ T5328] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.975720][ T5328] CR2: 00007f912b385e40 CR3: 0000000043bac000 CR4: 0000000000352ef0 [ 84.979714][ T5328] Kernel panic - not syncing: Fatal exception [ 84.982743][ T5328] Kernel Offset: disabled [ 84.984660][ T5328] Rebooting in 86400 seconds..