syzbot


WARNING in rds_conn_connect_if_down

Status: upstream: reported on 2023/04/11 20:53
Subsystems: rds
[Documentation on labels]
Reported-by: syzbot+d4faee732755bba9838e@syzkaller.appspotmail.com
First crash: 242d, last: 1d14h
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly rds report (Oct 2023) 0 (1) 2023/10/19 13:02
[syzbot] [rds?] WARNING in rds_conn_connect_if_down 0 (1) 2023/04/11 20:53

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7117 at net/rds/connection.c:933 rds_conn_connect_if_down+0x97/0xb0 net/rds/connection.c:933
Modules linked in:
CPU: 0 PID: 7117 Comm: syz-executor.0 Not tainted 6.5.0-rc7-syzkaller-00004-gf7757129e3de #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:rds_conn_connect_if_down+0x97/0xb0 net/rds/connection.c:933
Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 25 48 8b bb 90 00 00 00 5b 5d e9 be fa ff ff e8 19 6b 03 f8 <0f> 0b eb c6 e8 d0 77 57 f8 eb aa e8 29 78 57 f8 eb 80 e8 22 78 57
RSP: 0018:ffffc90003b578c8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801fb275f0 RCX: 0000000000000000
RDX: ffff88802c430000 RSI: ffffffff89829d87 RDI: 0000000000000001
RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: 00000000fffffff5
R13: ffff88808b8bcc00 R14: 0000000000000001 R15: ffff8880857a9000
FS:  00007f56aab9f6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f56aab3cd58 CR3: 00000000965f5000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rds_sendmsg+0x217f/0x31d0 net/rds/send.c:1319
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:748
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f56a9e7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f56aab9f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f56a9f9bf80 RCX: 00007f56a9e7cae9
RDX: 0000000000000000 RSI: 0000000020001600 RDI: 0000000000000003
RBP: 00007f56a9ec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f56a9f9bf80 R15: 00007f56aa0bfa48
 </TASK>

Crashes (8):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/08/21 22:50 upstream f7757129e3de 6b415825 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in rds_conn_connect_if_down
2023/07/30 19:15 upstream d31e3792919e 2a0d0f29 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in rds_conn_connect_if_down
2023/07/30 04:46 upstream 12214540ad87 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in rds_conn_connect_if_down
2023/04/07 20:45 net b9881d9a761a f7ba566d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in rds_conn_connect_if_down
2023/12/04 07:33 net-next 8470e4368b0f f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in rds_conn_connect_if_down
2023/10/13 23:07 net-next cf8b49fbd041 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in rds_conn_connect_if_down
2023/07/10 14:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 52ae002a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in rds_conn_connect_if_down
2023/07/10 14:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 52ae002a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in rds_conn_connect_if_down
* Struck through repros no longer work on HEAD.