syzbot


BUG: unable to handle kernel paging request in SyS_pselect6

Status: closed as invalid on 2017/12/06 12:41
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+f13a2fe20adf2070078f8f035753faeefb5077ea@syzkaller.appspotmail.com
First crash: 2616d, last: 2610d

Sample crash report:
BUG: unable to handle kernel paging request at 000000003106379d
IP: SYSC_pselect6 fs/select.c:766 [inline]
IP: SyS_pselect6+0x14b/0x650 fs/select.c:756
PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 5395 Comm: syz-executor1 Not tainted 4.15.0-rc2-next-20171206+ #60
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:SYSC_pselect6 fs/select.c:766 [inline]
RIP: 0010:SyS_pselect6+0x14b/0x650 fs/select.c:756
RSP: 0018:ffff8801c20efdc0 EFLAGS: 00010212
RAX: 0000000000000000 RBX: 1ffff1003841dfc0 RCX: ffffffff81b4511e
RDX: 0000000000000005 RSI: ffffc90003fee000 RDI: ffff8801c27e78e0
RBP: ffff8801c20eff48 R08: 0000000020774000 R09: 0000000020001000
R10: 0000000020001fc0 R11: ffff8801c27e6340 R12: ffff8801c20eff20
R13: 0000000000000008 R14: 0000000000000000 R15: 0000000020774000
FS:  00007f047c818700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001cc5a8000 CR4: 00000000001426e0
DR0: 0000000020001008 DR1: 0000000020001008 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff3 DR7: 0000000000bb060a
Call Trace:
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f047c817c58 EFLAGS: 00000212 ORIG_RAX: 000000000000010e
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39
RDX: 00000000201c0fc0 RSI: 00000000206eafc0 RDI: 0000000000000040
RBP: 0000000000000609 R08: 0000000020774000 R09: 0000000020001000
R10: 0000000020001fc0 R11: 0000000000000212 R12: 00000000006f6178
R13: 00000000ffffffff R14: 00007f047c8186d4 R15: 0000000000000000
Code: 1f 00 31 c0 4d 8b 75 00 0f 1f 00 85 c0 89 85 b0 fe ff ff 0f 85 95 03 00 00 e8 22 eb bb ff 0f 1f 00 8b 85 b0 fe ff ff 4d 8b 6d 08 <0f> 1f 00 85 c0 0f 85 78 03 00 00 e8 05 eb bb ff 4d 85 ff 0f 84 
RIP: SYSC_pselect6 fs/select.c:766 [inline] RSP: ffff8801c20efdc0
RIP: SyS_pselect6+0x14b/0x650 fs/select.c:756 RSP: ffff8801c20efdc0
CR2: fffffffffffffff8
---[ end trace 0605fd3b5b6e3e93 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/12/06 10:40 linux-next d5c52866f560 0796857b .config console log report ci-upstream-next-kasan-gce
2017/11/30 03:55 mmots 4131d5166185 29b0fd90 .config console log report ci-upstream-mmots-kasan-gce
* Struck through repros no longer work on HEAD.