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general protection fault in proto_seq_show

Status: auto-closed as invalid on 2019/10/25 08:38
Reported-by: syzbot+7c7dccee0ad089794282@syzkaller.appspotmail.com
First crash: 2008d, last: 1995d
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 general protection fault in proto_seq_show 4 2000d 2008d 0/1 auto-closed as invalid on 2019/10/25 08:39

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 7600 Comm: syz-executor.5 Not tainted 4.14.123 #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a3dce600 task.stack: ffff8880726a8000
RIP: 0010:proto_seq_printf net/core/sock.c:3307 [inline]
RIP: 0010:proto_seq_show+0x52/0x8c0 net/core/sock.c:3324
RSP: 0018:ffff8880726af930 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: dead000000000100 RCX: ffffc90006440000
RDX: 1bd5a0000000000c RSI: ffffffff84cc851f RDI: dead000000000060
RBP: ffff8880726af9c0 R08: ffff8880a9ba3488 R09: ffffed100e2f45bf
R10: ffffed100e2f45be R11: ffff8880717a2df5 R12: dead000000000100
R13: ffffffff86ee3fe0 R14: dffffc0000000000 R15: 0000000000000076
FS:  00007fea68d15700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69085b11b0 CR3: 00000000a7242000 CR4: 00000000001406f0
Call Trace:
 traverse+0x319/0x880 fs/seq_file.c:111
 seq_read+0x9e5/0x1280 fs/seq_file.c:192
 proc_reg_read+0xfa/0x170 fs/proc/inode.c:217
 do_loop_readv_writev fs/read_write.c:694 [inline]
 do_loop_readv_writev fs/read_write.c:681 [inline]
 do_iter_read+0x3e2/0x5b0 fs/read_write.c:918
 vfs_readv+0xd3/0x130 fs/read_write.c:980
 do_preadv+0x15d/0x200 fs/read_write.c:1064
 SYSC_preadv fs/read_write.c:1114 [inline]
 SyS_preadv+0x31/0x40 fs/read_write.c:1109
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459279
RSP: 002b:00007fea68d14c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459279
RDX: 00000000000001fe RSI: 00000000200017c0 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000400000000000 R11: 0000000000000246 R12: 00007fea68d156d4
R13: 00000000004c6376 R14: 00000000004dae78 R15: 00000000ffffffff
Code: 06 00 00 e8 a1 20 90 fc 48 8d bb 60 ff ff ff 48 8d 83 90 fe ff ff 48 89 fa 48 89 45 c8 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 0f 85 b3 07 00 00 48 83 bb 60 ff ff ff 01 19 c0 83 
RIP: proto_seq_printf net/core/sock.c:3307 [inline] RSP: ffff8880726af930
RIP: proto_seq_show+0x52/0x8c0 net/core/sock.c:3324 RSP: ffff8880726af930
---[ end trace 4a9d25bfeac1ba86 ]---

Crashes (27):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/06/08 03:26 linux-4.14.y 8cb123988908 cf9c3a50 .config console log report ci2-linux-4-14
2019/06/07 21:31 linux-4.14.y 8cb123988908 cf9c3a50 .config console log report ci2-linux-4-14
2019/06/06 09:38 linux-4.14.y 8cb123988908 a547defc .config console log report ci2-linux-4-14
2019/06/05 22:05 linux-4.14.y 8cb123988908 bfb4a51e .config console log report ci2-linux-4-14
2019/06/05 20:08 linux-4.14.y 8cb123988908 bfb4a51e .config console log report ci2-linux-4-14
2019/06/05 17:12 linux-4.14.y 8cb123988908 bfb4a51e .config console log report ci2-linux-4-14
2019/06/05 06:28 linux-4.14.y 8cb123988908 bfb4a51e .config console log report ci2-linux-4-14
2019/06/05 06:17 linux-4.14.y 8cb123988908 bfb4a51e .config console log report ci2-linux-4-14
2019/06/05 04:34 linux-4.14.y 8cb123988908 bfb4a51e .config console log report ci2-linux-4-14
2019/06/04 08:40 linux-4.14.y 8cb123988908 ce07a7ae .config console log report ci2-linux-4-14
2019/06/03 23:19 linux-4.14.y 8cb123988908 63bf051f .config console log report ci2-linux-4-14
2019/06/03 22:37 linux-4.14.y 8cb123988908 63bf051f .config console log report ci2-linux-4-14
2019/06/03 13:32 linux-4.14.y 8cb123988908 63bf051f .config console log report ci2-linux-4-14
2019/06/03 08:20 linux-4.14.y 8cb123988908 53c81ea5 .config console log report ci2-linux-4-14
2019/06/03 06:37 linux-4.14.y 8cb123988908 53c81ea5 .config console log report ci2-linux-4-14
2019/06/02 08:25 linux-4.14.y 8cb123988908 53c81ea5 .config console log report ci2-linux-4-14
2019/06/02 05:55 linux-4.14.y 8cb123988908 53c81ea5 .config console log report ci2-linux-4-14
2019/05/31 13:53 linux-4.14.y 44a05cd896d9 a8482b78 .config console log report ci2-linux-4-14
2019/05/31 07:59 linux-4.14.y 44a05cd896d9 d9aaf3c2 .config console log report ci2-linux-4-14
2019/05/29 15:35 linux-4.14.y 44a05cd896d9 f5a25d38 .config console log report ci2-linux-4-14
2019/05/29 13:47 linux-4.14.y 44a05cd896d9 f5a25d38 .config console log report ci2-linux-4-14
2019/05/28 14:05 linux-4.14.y 44a05cd896d9 6bd61501 .config console log report ci2-linux-4-14
2019/05/27 19:17 linux-4.14.y 44a05cd896d9 562efd79 .config console log report ci2-linux-4-14
2019/05/27 11:44 linux-4.14.y 44a05cd896d9 562efd79 .config console log report ci2-linux-4-14
2019/05/26 15:00 linux-4.14.y 44a05cd896d9 85c57315 .config console log report ci2-linux-4-14
2019/05/26 11:46 linux-4.14.y 44a05cd896d9 85c57315 .config console log report ci2-linux-4-14
2019/05/26 08:28 linux-4.14.y 44a05cd896d9 85c57315 .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.