syzbot


BUG: unable to handle kernel paging request in aead_accept_parent_nokey

Status: closed as invalid on 2018/01/30 22:24
Subsystems: crypto
[Documentation on labels]
Reported-by: syzbot+4d8b9d4de3fb89b15eb7f8b5c30d004f1836ee02@syzkaller.appspotmail.com
First crash: 2601d, last: 2601d

Sample crash report:
device lo entered promiscuous mode
BUG: unable to handle kernel paging request at fffffffffffffff0
Bearer <> rejected, not supported in standalone mode
IP: aead_accept_parent_nokey+0x2a/0x150 crypto/algif_aead.c:559
PGD 3021067 P4D 3021067 PUD 3023067 PMD 0 
Oops: 0000 [#1] SMP
Bearer <> rejected, not supported in standalone mode
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 5971 Comm: syz-executor1 Not tainted 4.15.0-rc3-next-20171213+ #66
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:aead_accept_parent_nokey+0x2a/0x150 crypto/algif_aead.c:559
RSP: 0018:ffffc90000d7bda8 EFLAGS: 00010216
RAX: 0000000000000000 RBX: ffff88020ab17540 RCX: ffffffff816ca746
RDX: 00000000014000c0 RSI: 0000000000000090 RDI: ffff8801e2c0e800
RBP: ffffc90000d7bdc8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801e2c0e800
R13: ffffffff82a95520 R14: ffff880213fd5400 R15: 0000000000000000
FS:  00007f60fba0c700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff0 CR3: 00000001e10a4000 CR4: 00000000001426e0
Call Trace:
 aead_accept_parent+0x28/0x40 crypto/algif_aead.c:595
 af_alg_accept+0x9c/0x1f0 crypto/af_alg.c:294
 alg_accept+0x25/0x30 crypto/af_alg.c:330
 SYSC_accept4+0x114/0x260 net/socket.c:1551
 SyS_accept4 net/socket.c:1502 [inline]
 SYSC_accept net/socket.c:1585 [inline]
 SyS_accept+0x26/0x30 net/socket.c:1582
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f60fba0bc58 EFLAGS: 00000212 ORIG_RAX: 000000000000002b
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000016
RBP: 000000000000001a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee310
R13: 00000000ffffffff R14: 00007f60fba0c6d4 R15: 0000000000000000
Code: 00 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb 49 89 f4 e8 2a fc be ff 48 8b 03 ba c0 00 40 01 be 90 00 00 00 4c 89 e7 48 8b 40 40 <44> 8b 68 f0 e8 7d a7 9d 00 48 85 c0 0f 84 ed 00 00 00 48 89 c3 
RIP: aead_accept_parent_nokey+0x2a/0x150 crypto/algif_aead.c:559 RSP: ffffc90000d7bda8
CR2: fffffffffffffff0
---[ end trace 1608f1470cd99fdb ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/12/14 03:55 linux-next 41d8c16909eb 06ea774d .config console log report ci-upstream-next-kasan-gce
* Struck through repros no longer work on HEAD.