syzbot


general protection fault in rxrpc_connect_call

Status: upstream: reported C repro on 2019/07/21 06:32
Reported-by: syzbot+1c4df9fea4f5e86d0c09@syzkaller.appspotmail.com
First crash: 1793d, last: 1478d
Fix bisection the fix commit could be any of (bisect log):
  aea8526edf59 Linux 4.14.133
  4139fb08c05f Linux 4.14.187
  
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream general protection fault in rxrpc_connect_call net afs C done 15 1826d 1971d 12/27 fixed on 2019/08/05 13:45
linux-4.19 general protection fault in rxrpc_connect_call C done 285 1628d 1792d 1/1 fixed on 2020/01/31 18:44
Last patch testing requests (4)
Created Duration User Patch Repo Result
2023/01/16 11:32 9m retest repro linux-4.14.y report log
2023/01/16 03:32 11m retest repro linux-4.14.y report log
2022/09/03 13:27 10m retest repro linux-4.14.y report log
2022/09/03 12:27 13m retest repro linux-4.14.y report log
Fix bisection attempts (8)
Created Duration User Patch Repo Result
2020/06/30 03:26 30m (2) bisect fix linux-4.14.y job log (2)
2020/05/31 02:56 30m bisect fix linux-4.14.y job log (0) log
2020/05/01 02:25 30m bisect fix linux-4.14.y job log (0) log
2020/04/01 01:55 30m bisect fix linux-4.14.y job log (0) log
2020/03/02 01:25 30m bisect fix linux-4.14.y job log (0) log
2020/02/01 00:51 33m bisect fix linux-4.14.y job log (0) log
2020/01/02 00:20 30m bisect fix linux-4.14.y job log (0) log
2019/12/02 23:46 30m bisect fix linux-4.14.y job log (0) log

Sample crash report:
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
audit: type=1400 audit(1563689158.148:36): avc:  denied  { map } for  pid=7088 comm="syz-executor332" path="/root/syz-executor332093320" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
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: 1 PID: 7088 Comm: syz-executor332 Not tainted 4.14.133 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888097074340 task.stack: ffff888094c18000
RIP: 0010:rxrpc_connect_call+0xc9/0x41a0 /net/rxrpc/conn_client.c:684
RSP: 0018:ffff888094c1f738 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 00000000014000c0
RDX: 0000000000000003 RSI: ffff888094c1f998 RDI: 0000000000000018
RBP: ffff888094c1f880 R08: 0000000000000001 R09: ffff888097074be0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808c312c00
R13: ffff888215da81a0 R14: ffff888215da8190 R15: ffff888094c1f998
FS:  0000000000bc1880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 000000009a7d4000 CR4: 00000000001406e0
Call Trace:
 rxrpc_new_client_call+0x8f7/0x1420 /net/rxrpc/call_object.c:276
 rxrpc_new_client_call_for_sendmsg /net/rxrpc/sendmsg.c:525 [inline]
 rxrpc_do_sendmsg+0x91a/0x1103 /net/rxrpc/sendmsg.c:577
 rxrpc_sendmsg+0x48a/0x650 /net/rxrpc/af_rxrpc.c:543
 sock_sendmsg_nosec /net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 /net/socket.c:656
 ___sys_sendmsg+0x349/0x840 /net/socket.c:2062
 __sys_sendmmsg+0x152/0x3a0 /net/socket.c:2152
 SYSC_sendmmsg /net/socket.c:2183 [inline]
 SyS_sendmmsg+0x35/0x60 /net/socket.c:2178
 do_syscall_64+0x1e8/0x640 /arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x440249
RSP: 002b:00007ffd54dcf9a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440249
RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ad0
R13: 0000000000401b60 R14: 0000000000000000 R15: 0000000000000000
Code: e8 03 80 3c 18 00 0f 85 6f 39 00 00 48 8b 85 28 ff ff ff 48 8b 18 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 8a 39 00 00 48 8b 5b 18 48 8d bb 00 02 00 00 
RIP: rxrpc_connect_call+0xc9/0x41a0 /net/rxrpc/conn_client.c:684 RSP: ffff888094c1f738
---[ end trace 8d6edeb6a75db461 ]---

Crashes (636):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/07/21 06:09 linux-4.14.y aea8526edf59 1656845f .config console log report syz C ci2-linux-4-14
2019/07/21 05:51 linux-4.14.y aea8526edf59 1656845f .config console log report syz C ci2-linux-4-14
2019/07/31 05:00 linux-4.14.y ff33472c282e 7c7ded69 .config console log report ci2-linux-4-14
2019/07/31 03:43 linux-4.14.y ff33472c282e 7c7ded69 .config console log report ci2-linux-4-14
2019/07/31 01:22 linux-4.14.y ff33472c282e 7c7ded69 .config console log report ci2-linux-4-14
2019/07/31 00:27 linux-4.14.y ff33472c282e 7c7ded69 .config console log report ci2-linux-4-14
2019/07/30 23:56 linux-4.14.y ff33472c282e 7c7ded69 .config console log report ci2-linux-4-14
2019/07/30 21:08 linux-4.14.y ff33472c282e 7c7ded69 .config console log report ci2-linux-4-14
2019/07/30 19:07 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 19:02 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 17:42 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 15:46 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 12:14 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 11:44 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 10:15 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 09:16 linux-4.14.y ff33472c282e f28bf2a5 .config console log report ci2-linux-4-14
2019/07/30 06:18 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/30 06:12 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 23:54 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 21:00 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 20:47 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 20:26 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 20:08 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 15:49 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 15:31 linux-4.14.y ff33472c282e f67095ee .config console log report ci2-linux-4-14
2019/07/29 12:47 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/29 11:46 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/29 11:30 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/29 07:35 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/29 06:44 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/29 01:05 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 21:39 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 21:14 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 20:43 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 20:41 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 17:43 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 13:57 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 10:54 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 09:16 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 08:02 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 07:11 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 07:09 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 05:33 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 04:15 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
2019/07/28 00:56 linux-4.14.y ff33472c282e c85e1c5b .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.