kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 12081 Comm: syz-executor5 Not tainted 4.19.0-rc2-next-20180904+ #55 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:p9_client_prepare_req.part.7+0x44f/0x870 net/9p/client.c:715 Code: ff 0f 87 29 fd ff ff e8 bf 00 d4 fa 0f be 85 a4 fe ff ff 4c 89 ea 48 c1 ea 03 89 85 a4 fe ff ff 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 97 RSP: 0018:ffff8801865f71f0 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90007cae000 RDX: 000000000000000b RSI: ffffffff86a8d5b1 RDI: 0000000000000286 RBP: ffff8801865f7368 R08: ffffed003b6246df R09: ffffed003b6246de R10: ffffed003b6246de R11: ffff8801db1236f3 R12: ffff8801c416da80 R13: 000000000000005e R14: 0000000000002000 R15: ffff8801c416dab8 FS: 00007fae6b62a700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000706138 CR3: 000000015c982000 CR4: 00000000001426e0 Call Trace: p9_client_prepare_req net/9p/client.c:747 [inline] p9_client_rpc+0x247/0x12c0 net/9p/client.c:747 p9_client_version net/9p/client.c:964 [inline] p9_client_create+0x9d6/0x1702 net/9p/client.c:1049 v9fs_session_init+0x21a/0x1a80 fs/9p/v9fs.c:400 v9fs_mount+0x7c/0x900 fs/9p/vfs_super.c:135 legacy_get_tree+0x131/0x460 fs/fs_context.c:732 vfs_get_tree+0x1cb/0x5c0 fs/super.c:1746 do_new_mount fs/namespace.c:2627 [inline] do_mount+0x6f9/0x1e30 fs/namespace.c:2951 ksys_mount+0x12d/0x140 fs/namespace.c:3167 __do_sys_mount fs/namespace.c:3181 [inline] __se_sys_mount fs/namespace.c:3178 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3178 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fae6b629c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fae6b62a6d4 RCX: 0000000000457099 RDX: 0000000020000180 RSI: 0000000020000140 RDI: 0000000000000000 RBP: 00000000009301e0 R08: 00000000200001c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000004d3228 R14: 00000000004c81cc R15: 0000000000000013 Modules linked in: Dumping ftrace buffer: --------------------------------- CPU:1 [LOST 1631 EVENTS] syz-exec-8842 1...2 265594757us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594762us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594767us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594771us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594777us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594782us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594786us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594791us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594795us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594800us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594805us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594810us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594815us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594820us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594825us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594830us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594835us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594840us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594845us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594850us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594855us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594860us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594865us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594870us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594875us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594880us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594885us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594890us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594895us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594900us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594906us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594910us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594915us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594920us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594924us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265594929us : 0: u0000000000a0ad66 syz-exec-8842 1.N.2 265594967us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602182us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602189us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602194us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602198us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602203us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602208us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602213us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602218us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602222us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602227us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602232us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602236us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602241us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602246us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602250us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602255us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602260us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602265us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602279us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602284us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602289us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602294us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602299us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602303us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602308us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602312us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602316us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602320us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602323us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602327us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602332us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602336us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602340us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602345us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602350us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602354us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602358us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602362us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602367us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602372us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602376us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602381us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602386us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602391us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602396us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602400us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602405us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602410us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602415us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602420us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602424us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602429us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602433us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602437us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602441us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602450us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602455us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602460us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602465us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602470us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602475us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602480us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602485us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602490us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602496us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602503us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602507us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602511us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602516us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602520us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602525us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602530us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602535us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602540us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602545us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602549us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602553us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602557us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602562us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602567us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602571us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602576us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602581us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602586us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602591us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602596us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602601us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602606us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602610us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602615us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602668us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602673us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602678us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602683us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602688us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602692us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602697us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602702us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602707us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602712us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602717us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602721us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602740us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602745us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602750us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602755us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602760us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602765us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602769us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602774us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602779us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602784us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602788us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602793us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602798us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602802us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602807us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602812us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602817us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602822us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602827us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602832us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602836us : 0: u0000000000a0ad66 syz-exec-8842 1...2 265602841us : 0: u0000000000a0ad66 --------------------------------- ---[ end trace 1bd42d5f2e679f3b ]--- RIP: 0010:p9_client_prepare_req.part.7+0x44f/0x870 net/9p/client.c:715 Code: ff 0f 87 29 fd ff ff e8 bf 00 d4 fa 0f be 85 a4 fe ff ff 4c 89 ea 48 c1 ea 03 89 85 a4 fe ff ff 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 97 RSP: 0018:ffff8801865f71f0 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90007cae000 RDX: 000000000000000b RSI: ffffffff86a8d5b1 RDI: 0000000000000286 RBP: ffff8801865f7368 R08: ffffed003b6246df R09: ffffed003b6246de R10: ffffed003b6246de R11: ffff8801db1236f3 R12: ffff8801c416da80 R13: 000000000000005e R14: 0000000000002000 R15: ffff8801c416dab8 FS: 00007fae6b62a700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000706138 CR3: 000000015c982000 CR4: 00000000001426e0