9pnet: p9_fd_create_tcp (4532): problem connecting socket to 127.0.0.1 kasan: CONFIG_KASAN_INLINE enabled 9pnet: p9_fd_create_tcp (4535): problem connecting socket to 127.0.0.1 kasan: GPF could be caused by NULL-ptr deref or user memory access 9pnet: p9_fd_create_tcp (4541): problem connecting socket to 127.0.0.1 general protection fault: 0000 [#1] SMP KASAN 9pnet: p9_fd_create_tcp (4544): problem connecting socket to 127.0.0.1 CPU: 0 PID: 4539 Comm: syz-executor021 Not tainted 4.18.0-rc4+ #141 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vsscanf+0x3c1/0x2af0 lib/vsprintf.c:2966 Code: f9 9pnet: p9_fd_create_tcp (4549): problem connecting socket to 127.0.0.1 44 89 ee bf 6e 00 00 00 e8 5b 82 eb f9 41 80 fd 6e 0f 84 ce 02 kasan: CONFIG_KASAN_INLINE enabled 00 00 e8 7c 81 eb f9 kasan: GPF could be caused by NULL-ptr deref or user memory access 4c 89 f0 4c 89 f2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 38 38 d0 7f 08 84 c0 0f 85 e8 1c 00 00 45 0f b6 26 31 RSP: 0018:ffff8801bb0bf0e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffff888364c1 RCX: ffffffff87908a15 RDX: 0000000000000000 RSI: ffffffff87908a24 RDI: 0000000000000001 RBP: ffff8801bb0bf2b0 R08: ffff8801ac6fe440 R09: ffff8801bb0bf4a4 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff888364c1 R13: 0000000000000064 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f6372039700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6372017e78 CR3: 00000001d9304000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sscanf+0xab/0xe0 lib/vsprintf.c:3172 valid_ipaddr4 net/9p/trans_fd.c:903 [inline] p9_fd_create_tcp+0x113/0x8a0 net/9p/trans_fd.c:943 p9_client_create+0x915/0x16c9 net/9p/client.c:1062 v9fs_session_init+0x21a/0x1a80 fs/9p/v9fs.c:400 v9fs_mount+0x7c/0x900 fs/9p/vfs_super.c:135 mount_fs+0xae/0x328 fs/super.c:1277 vfs_kern_mount.part.34+0xdc/0x4e0 fs/namespace.c:1037 vfs_kern_mount fs/namespace.c:1027 [inline] do_new_mount fs/namespace.c:2518 [inline] do_mount+0x581/0x30e0 fs/namespace.c:2848 ksys_mount+0x12d/0x140 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3075 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x445a99 Code: e8 bc e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 2b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6372038da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dac3c RCX: 0000000000445a99 RDX: 0000000020000340 RSI: 00000000200000c0 RDI: 0000000000000000 RBP: 00000000006dac38 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e R13: 63743d736e617274 R14: 2e302e302e373231 R15: 0000000000000001 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) general protection fault: 0000 [#2] SMP KASAN ---[ end trace c1135eabce25c6f9 ]--- CPU: 1 PID: 4550 Comm: syz-executor021 Tainted: G D 4.18.0-rc4+ #141 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vsscanf+0x3c1/0x2af0 lib/vsprintf.c:2966 Code: RIP: 0010:vsscanf+0x3c1/0x2af0 lib/vsprintf.c:2966 f9 44 89 ee bf 6e 00 Code: 00 00 e8 5b 82 eb f9 f9 41 80 fd 6e 0f 84 ce 44 02 00 00 e8 7c 89 81 eb f9 4c 89 ee f0 4c 89 f2 48 c1 bf e8 03 83 e2 07 <42> 6e 0f b6 04 38 38 d0 00 7f 08 84 c0 0f 85 00 e8 1c 00 00 45 0f 00 b6 26 31 RSP: 0018:ffff8801bd2b70e0 EFLAGS: 00010246 e8 RAX: 0000000000000000 RBX: ffffffff888364c1 RCX: ffffffff87908a15 RDX: 0000000000000000 RSI: ffffffff87908a24 RDI: 0000000000000001 RBP: ffff8801bd2b72b0 R08: ffff8801d9164700 R09: ffff8801bd2b74a4 5b R10: 00000000853704de R11: ffff8801daf236b3 R12: ffffffff888364c1 R13: 0000000000000064 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f6372018700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 82 CR2: 00007f6372017e78 CR3: 00000001ac4f7000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 eb Call Trace: f9 41 80 fd sscanf+0xab/0xe0 lib/vsprintf.c:3172 6e 0f 84 valid_ipaddr4 net/9p/trans_fd.c:903 [inline] p9_fd_create_tcp+0x113/0x8a0 net/9p/trans_fd.c:943 ce 02 00 00 e8 p9_client_create+0x915/0x16c9 net/9p/client.c:1062 7c 81 eb f9 4c 89 f0 4c v9fs_session_init+0x21a/0x1a80 fs/9p/v9fs.c:400 89 f2 48 c1 e8 v9fs_mount+0x7c/0x900 fs/9p/vfs_super.c:135 mount_fs+0xae/0x328 fs/super.c:1277 03 vfs_kern_mount.part.34+0xdc/0x4e0 fs/namespace.c:1037 83 e2 vfs_kern_mount fs/namespace.c:1027 [inline] do_new_mount fs/namespace.c:2518 [inline] do_mount+0x581/0x30e0 fs/namespace.c:2848 07 <42> 0f b6 ksys_mount+0x12d/0x140 fs/namespace.c:3064 04 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3075 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 38 38 d0 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x445a99 7f Code: e8 bc e7 08 ff ff 48 83 c4 18 c3 84 0f 1f 80 00 00 00 00 c0 48 89 f8 48 89 f7 48 0f 89 d6 48 89 ca 4d 89 85 c2 4d 89 c8 4c 8b e8 4c 24 08 0f 05 <48> 1c 3d 01 f0 ff ff 0f 00 83 2b 0e fc ff 00 c3 66 2e 0f 1f 45 84 00 00 00 00 0f RSP: 002b:00007f6372017da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dac54 RCX: 0000000000445a99 RDX: 0000000020000340 RSI: 00000000200000c0 RDI: 0000000000000000 b6 RBP: 00000000006dac50 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e R13: 63743d736e617274 R14: 2e302e302e373231 R15: 0000000000000001 26 Modules linked in: Dumping ftrace buffer: 31 (ftrace buffer empty) ---[ end trace c1135eabce25c6fa ]--- RIP: 0010:vsscanf+0x3c1/0x2af0 lib/vsprintf.c:2966 Code: RSP: 0018:ffff8801bb0bf0e0 EFLAGS: 00010246 f9 44 89 RAX: 0000000000000000 RBX: ffffffff888364c1 RCX: ffffffff87908a15 ee bf RDX: 0000000000000000 RSI: ffffffff87908a24 RDI: 0000000000000001 6e RBP: ffff8801bb0bf2b0 R08: ffff8801ac6fe440 R09: ffff8801bb0bf4a4 00 00 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff888364c1 00 R13: 0000000000000064 R14: 0000000000000000 R15: dffffc0000000000 e8 5b FS: 00007f6372039700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 82 eb CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 f9 CR2: 00007f6372017e78 CR3: 00000001d9304000 CR4: 00000000001406f0 41 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 80 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400