syzbot


WARNING in kcm_write_msgs

Status: upstream: reported C repro on 2020/03/19 07:10
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+52624bdfbf2746d37d70@syzkaller.appspotmail.com
First crash: 1735d, last: 8d11h
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config
  
Discussions (12)
Title Replies (including bot) Last reply
[syzbot] Monthly net report (Aug 2024) 0 (1) 2024/08/02 07:26
[syzbot] Monthly net report (Jul 2024) 0 (1) 2024/07/01 10:28
[syzbot] Monthly net report (Apr 2024) 0 (1) 2024/04/30 07:11
[syzbot] Monthly net report (Feb 2024) 0 (1) 2024/02/27 09:32
[syzbot] Monthly net report (Jan 2024) 0 (1) 2024/01/26 21:54
[syzbot] Monthly net report (Dec 2023) 0 (1) 2023/12/27 09:18
[syzbot] Monthly net report (Nov 2023) 5 (6) 2023/11/28 15:05
[syzbot] Monthly net report (Jun 2023) 0 (1) 2023/06/29 12:38
[syzbot] Monthly net report (May 2023) 0 (1) 2023/05/30 10:56
[syzbot] Monthly net report (Apr 2023) 0 (1) 2023/04/27 10:45
[syzbot] Monthly net report 0 (1) 2023/03/27 11:04
WARNING in kcm_write_msgs 0 (2) 2020/03/25 23:53
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in kcm_write_msgs origin:upstream C error 2 105d 382d 0/3 upstream: reported C repro on 2023/11/28 05:07
linux-4.14 WARNING in kcm_write_msgs C inconclusive 2 701d 1707d 0/1 upstream: reported C repro on 2020/04/12 04:13
linux-5.15 WARNING in kcm_write_msgs origin:lts-only C error 1 1d13h 235d 0/3 upstream: reported C repro on 2024/04/23 04:47
linux-4.19 WARNING in kcm_write_msgs C error 8 695d 1719d 0/1 upstream: reported C repro on 2020/03/30 19:34
Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/11/28 20:44 15m retest repro net-next report log
2024/11/28 20:44 23m retest repro upstream OK log
2024/11/28 20:44 1h58m retest repro upstream report log
2024/11/28 20:44 1h08m retest repro upstream report log
2024/11/28 20:44 15m retest repro net-next report log
2024/11/14 20:24 16m retest repro upstream report log
2024/10/11 06:43 16m retest repro net report log
2024/10/11 06:43 24m retest repro net OK log
2024/10/11 06:43 15m retest repro net report log
2024/10/11 06:43 39m retest repro net report log
Fix bisection attempts (4)
Created Duration User Patch Repo Result
2021/06/10 21:46 29m bisect fix upstream OK (0) job log log
2021/03/02 19:18 23m bisect fix upstream OK (0) job log log
2021/01/10 10:33 23m bisect fix upstream OK (0) job log log
2020/11/12 12:50 17m bisect fix upstream OK (0) job log log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6967 at net/kcm/kcmsock.c:630 kcm_write_msgs+0x880/0x1750 net/kcm/kcmsock.c:630
Modules linked in:
CPU: 1 UID: 0 PID: 6967 Comm: syz-executor127 Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:kcm_write_msgs+0x880/0x1750 net/kcm/kcmsock.c:630
Code: 07 48 c1 ea 03 0f b6 04 02 38 c8 7f 08 84 c0 0f 85 64 0e 00 00 41 c6 46 34 01 4c 89 74 24 20 e9 84 f9 ff ff e8 91 99 42 f7 90 <0f> 0b 90 41 bd ea ff ff ff e8 82 99 42 f7 e8 7d 99 42 f7 48 8b 44
RSP: 0018:ffffc9000c3d78f0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888078a2d940 RCX: ffffffff8a57669d
RDX: ffff8880289e2440 RSI: ffffffff8a576c7f RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: dffffc0000000000
R13: 0000000000088000 R14: ffff88807a073c80 R15: ffff88807d22a3c0
FS:  00007fc815a166c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020227000 CR3: 0000000024f98000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kcm_sendmsg+0x2539/0x2be0 net/kcm/kcmsock.c:907
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg net/socket.c:726 [inline]
 sock_write_iter+0x4fe/0x5b0 net/socket.c:1147
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0x5ae/0x1150 fs/read_write.c:679
 ksys_write+0x207/0x250 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc815a60119
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1a 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:00007fc815a16218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc815aec428 RCX: 00007fc815a60119
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007fc815aec420 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc815ab836c
R13: 00007fc815ab7618 R14: 00000000200011c0 R15: 656c6c616b7a7973
 </TASK>

Crashes (616):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/05 20:51 upstream feffde684ac2 6e50d07b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/05/07 17:27 upstream dccb07f2914c cb2dcc0e .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/01/26 05:26 upstream 6098d87eaf31 cc4a4020 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcm_write_msgs
2024/01/15 06:57 upstream 052d534373b7 551587c1 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcm_write_msgs
2023/10/16 15:17 upstream 58720809f527 6388bc36 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcm_write_msgs
2023/07/04 12:11 upstream 24be4d0b46bb 6e553898 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2023/03/13 05:05 upstream 134231664868 5205ef30 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcm_write_msgs
2023/01/05 12:13 upstream 512dee0c00ad 1dac8c7a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcm_write_msgs
2022/07/03 05:08 upstream 34074da5424c 1434eec0 .config strace log report syz C ci-upstream-kasan-gce-root WARNING in kcm_write_msgs
2023/10/15 02:40 net 2d1c882d4434 6388bc36 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in kcm_write_msgs
2023/01/05 03:32 net-old 558016722e9d 1dac8c7a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in kcm_write_msgs
2023/10/14 16:58 net-next 85605fb694f0 6388bc36 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in kcm_write_msgs
2023/01/05 10:16 net-next-old d75858ef108c 1dac8c7a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in kcm_write_msgs
2022/05/13 18:27 net-next-old b67fd3d9d942 107f6434 .config strace log report syz C ci-upstream-net-kasan-gce WARNING in kcm_write_msgs
2024/05/23 01:30 linux-next 124cfbcd6d18 4d098039 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcm_write_msgs
2023/05/02 05:44 linux-next 92e815cf07ed 62df2017 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcm_write_msgs
2022/08/10 08:02 linux-next 6c8f479764eb c2a623d6 .config strace log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in kcm_write_msgs
2023/11/11 14:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c 6d6dbf8a .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in kcm_write_msgs
2023/01/05 05:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in kcm_write_msgs
2020/04/20 19:40 upstream ae83d0b416db 347a5dc3 .config console log report syz C ci-upstream-kasan-gce-smack-root
2020/04/19 02:11 upstream 90280eaa88ac 365fba24 .config console log report syz C ci-upstream-kasan-gce-root
2020/03/26 00:43 net-old 919a23e9d6cc 41f049cc .config console log report syz C ci-upstream-net-this-kasan-gce
2020/03/25 23:53 net-next-old 29f3490ba9d2 41f049cc .config console log report syz C ci-upstream-net-kasan-gce
2022/09/17 22:59 upstream a335366bad13 dd9a85ff .config strace log report syz C ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2022/05/13 19:01 upstream f3f19f939c11 107f6434 .config strace log report syz C ci-upstream-kasan-gce WARNING in kcm_write_msgs
2024/10/31 20:15 upstream 0fc810ae3ae1 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/10/23 05:48 upstream c2ee9f594da8 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcm_write_msgs
2024/10/23 04:17 upstream c2ee9f594da8 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcm_write_msgs
2024/09/12 14:40 upstream 77f587896757 60e1a995 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/09/10 09:30 upstream bc83b4d1f086 784df80e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcm_write_msgs
2024/08/26 03:28 upstream 5be63fc19fca d7d32352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/07/31 09:53 upstream 22f546873149 6fde257d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in kcm_write_msgs
2024/07/30 14:59 upstream 94ede2a3e913 a4e01e1e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcm_write_msgs
2024/07/30 13:16 upstream 94ede2a3e913 a4e01e1e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/07/17 14:28 upstream 51835949dda3 03114f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/07/11 02:44 upstream a19ea421490d c699c2eb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/07/10 10:20 upstream 34afb82a3c67 e7213be3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/07/09 03:50 upstream 4376e966ecb7 bc23a442 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/07/08 21:59 upstream 256abd8e550c cde64f7d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcm_write_msgs
2024/07/08 20:02 upstream 256abd8e550c cde64f7d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcm_write_msgs
2024/07/08 14:46 upstream 256abd8e550c cde64f7d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/07/06 22:42 upstream 1dd28064d416 bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/07/06 21:15 upstream 1dd28064d416 bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/07/03 08:26 upstream e9d22f7a6655 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/07/03 05:26 upstream e9d22f7a6655 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/07/03 03:54 upstream e9d22f7a6655 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/06/26 11:30 upstream 55027e689933 dec8bc94 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/06/26 11:28 upstream 55027e689933 dec8bc94 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/05/22 09:34 upstream 8f6a15f095a6 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in kcm_write_msgs
2024/05/22 09:31 upstream 8f6a15f095a6 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcm_write_msgs
2024/05/22 02:24 upstream 8f6a15f095a6 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/05/22 02:13 upstream 8f6a15f095a6 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in kcm_write_msgs
2024/05/21 21:32 upstream 8f6a15f095a6 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in kcm_write_msgs
2024/05/21 19:46 upstream 8f6a15f095a6 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2022/08/20 00:39 upstream 4c2d0b039c5c 26a13b38 .config console log report syz C ci-upstream-kasan-gce-smack-root WARNING in kcm_write_msgs
2024/09/06 19:50 upstream b831f83e40a2 ce70880a .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/09/06 16:02 upstream b831f83e40a2 ce70880a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/29 06:00 upstream a18093afa393 ef3de9e8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in kcm_write_msgs
2024/08/28 16:45 upstream 86987d84b968 ef3de9e8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/24 20:13 upstream d2bafcf224f3 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/24 20:01 upstream d2bafcf224f3 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/24 18:27 upstream d2bafcf224f3 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/23 14:44 upstream 3d5f968a177d d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/17 13:40 upstream e5fa841af679 dbc93b08 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/17 00:19 upstream 296c871d2904 dbc93b08 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/08/10 13:42 upstream 34ac1e82e5a7 6f4edef4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/26 01:34 upstream 1722389b0d86 3f86dfed .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/22 09:02 upstream 933069701c1b fb8445ca .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/21 07:24 upstream 2c9b3512402e b88348e9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/19 04:09 upstream 720261cfc732 ee4e11c8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/17 16:24 upstream 51835949dda3 877a6ab1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/15 05:29 upstream 882ddcd1bf63 252f67bd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/08 14:02 upstream 256abd8e550c 7ca8bbea .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/03 10:43 upstream e9d22f7a6655 ffe8393d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/07/02 23:37 upstream 734610514cb0 1ecfa2d8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/04/06 03:02 upstream e8b0ccb2a787 ca620dd8 .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in kcm_write_msgs
2024/03/08 16:44 net df4793505abd cf82cde1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in kcm_write_msgs
2022/08/02 11:22 net-old a41b17ff9dac fef302b1 .config console log report syz ci-upstream-net-this-kasan-gce WARNING in kcm_write_msgs
2022/05/13 19:08 net-old f3f19f939c11 107f6434 .config strace log report syz C ci-upstream-net-this-kasan-gce WARNING in kcm_write_msgs
2024/02/04 21:28 net-next 3907f1ffc0ec a67b2c42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in kcm_write_msgs
2024/07/08 20:58 linux-next 0b58e108042b cde64f7d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcm_write_msgs
2024/07/08 16:27 linux-next 0b58e108042b cde64f7d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcm_write_msgs
2024/06/26 13:14 linux-next 62c97045b8f7 dec8bc94 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcm_write_msgs
2024/05/22 03:37 linux-next 124cfbcd6d18 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in kcm_write_msgs
2024/06/16 18:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ac2193b4b460 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in kcm_write_msgs
2021/01/16 18:12 net-old bcd0cf19ef82 65a7a854 .config console log report info ci-upstream-net-this-kasan-gce
2020/03/15 04:32 net-old 94b18a87efdd 749688d2 .config console log report ci-upstream-net-this-kasan-gce
* Struck through repros no longer work on HEAD.