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lost connection to test machine

Status: upstream: reported C repro on 2023/03/08 14:43
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+2848ce90a1090c236f33@syzkaller.appspotmail.com
First crash: 1154d, last: 5h35m
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2025/06/28 upstream (ToT) aaf724ed6926 C [report] no output from test machine
▶ ▼ Similar bugs (23)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 lost connection to test machine (2) -1 6 3070d never 0/2 closed as invalid on 2017/12/09 08:45
android-5-15 lost connection to test machine origin:lts -1 C 427160 now 1309d 0/2 premoderation: reported C repro on 2022/10/05 10:32
android-44 lost connection to test machine (3) -1 C 259 3052d 3069d 0/2 closed as invalid on 2017/12/27 12:57
linux-4.14 lost connection to test machine -1 56267 1183d 2581d 0/1 upstream: reported on 2019/04/11 15:39
android-44 lost connection to test machine (4) -1 C 62294 2345d 2579d 0/2 public: reported C repro on 2019/04/14 00:00
android-49 lost connection to test machine (3) -1 C 109581 2345d 2579d 0/3 public: reported C repro on 2019/04/14 08:51
android-44 lost connection to test machine -1 79 3100d 3100d 0/2 closed as invalid on 2017/11/09 08:47
android-6-1 lost connection to test machine origin:upstream -1 C 336053 now 1092d 0/2 premoderation: reported C repro on 2023/05/10 12:05
android-6-12 lost connection to test machine origin:downstream -1 C 54549 13m 321d 0/1 premoderation: reported C repro on 2025/06/19 05:52
linux-6.6 lost connection to test machine origin:upstream -1 C 16885 14h05m 323d 0/2 upstream: reported C repro on 2025/06/16 17:10
linux-4.4 lost connection to test machine -1 426 2417d 2577d 0/1 auto-closed as invalid on 2019/12/22 11:26
upstream lost connection to test machine (4) -1 C 1189 2990d 3004d 4/29 fixed on 2018/02/26 20:04
android-5-10 lost connection to test machine -1 C 769562 now 1646d 0/2 upstream: reported C repro on 2021/11/02 11:48
android-414 lost connection to test machine -1 C 23644 2345d 2581d 0/1 public: reported C repro on 2019/04/12 00:01
android-49 lost connection to test machine -1 C 8069 3100d 3100d 0/3 closed as invalid on 2017/11/09 10:06
upstream lost connection to test machine (2) -1 C 15874 3052d 3100d 0/29 closed as invalid on 2017/12/27 12:57
android-54 lost connection to test machine -1 syz 136755 344d 2307d 0/2 upstream: reported syz repro on 2020/01/10 15:22
upstream lost connection to test machine (5) -1 C error 3050224 now 2364d 0/29 moderation: reported C repro on 2019/11/15 12:45
upstream lost connection to test machine (3) -1 C 4251 3012d 3051d 4/29 fixed on 2018/02/04 23:45
upstream lost connection to test machine -1 C 25017 3100d 3100d 0/29 closed as invalid on 2017/11/09 10:06
android-49 lost connection to test machine (2) -1 C 2946 3052d 3100d 0/3 closed as invalid on 2017/12/27 12:57
linux-5.15 lost connection to test machine origin:lts-only -1 C done 30637 5h03m 1154d 0/3 upstream: reported C repro on 2023/03/08 15:21
linux-4.19 lost connection to test machine -1 30440 1185d 2582d 0/1 upstream: reported on 2019/04/10 19:39
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2024/06/19 11:16 7h28m fix candidate upstream OK (1) job log
Crashes (79563):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/27 19:10 linux-6.1.y 7e69c33e4858 803ce19b .config console log syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/06/26 23:15 linux-6.1.y 58485ff1a74f 803ce19b .config console log syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/20 06:56 linux-6.1.y cd9b81672742 572effc1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/19 16:44 linux-6.1.y cd9b81672742 a9fc5226 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/19 13:33 linux-6.1.y cd9b81672742 a9fc5226 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/18 12:35 linux-6.1.y cd9b81672742 20d37d28 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/17 04:23 linux-6.1.y bec0e10ee67e 20d37d28 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/16 20:36 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/16 19:25 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/01/16 09:50 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/15 21:41 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/15 11:35 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/15 10:22 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/15 04:29 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/14 13:22 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/14 11:28 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/13 14:29 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/13 03:53 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/12 17:24 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/12 07:27 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/12 00:01 linux-6.1.y bec0e10ee67e d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/11 02:14 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/10 20:03 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/09 14:13 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/08 20:26 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/08 08:09 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/07 16:19 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/06 21:16 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/06 18:08 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/05 06:49 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/05 06:12 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/04 18:29 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/04 16:46 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/04 14:07 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/03 16:41 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/03 07:56 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/03 06:29 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/03 05:05 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/03 00:07 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/02 22:30 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/02 07:38 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/01/02 05:33 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2024/06/12 16:08 linux-6.1.y ae9f2a70d69e f815599d .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2024/05/30 04:17 linux-6.1.y 88690811da69 34889ee3 .config syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2024/05/30 05:36 linux-6.1.y 88690811da69 34889ee3 .config syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/05/06 08:03 linux-6.1.y 4931e0e1673d 26da2c66 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/05/05 22:12 linux-6.1.y 4931e0e1673d 26da2c66 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/05/05 21:55 linux-6.1.y 4931e0e1673d 26da2c66 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/05/05 20:40 linux-6.1.y 4931e0e1673d 06e69a27 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/05/03 21:06 linux-6.1.y 4931e0e1673d a0d91488 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/05/03 13:52 linux-6.1.y 4931e0e1673d a0d91488 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/05/02 08:24 linux-6.1.y 4931e0e1673d a0d91488 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/04/30 18:13 linux-6.1.y 4931e0e1673d a7464baf .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/30 06:01 linux-6.1.y 7c87defbd336 005438fc .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/29 15:23 linux-6.1.y 7c87defbd336 7ca9e4d8 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/04/28 22:39 linux-6.1.y 7c87defbd336 95008c03 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/04/28 09:19 linux-6.1.y 7c87defbd336 ce741359 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/04/27 19:45 linux-6.1.y 7c87defbd336 0f700595 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/27 11:16 linux-6.1.y 7c87defbd336 0f700595 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/25 18:13 linux-6.1.y 7c87defbd336 9c2d0995 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/04/25 16:49 linux-6.1.y 7c87defbd336 9c2d0995 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/04/24 23:05 linux-6.1.y 7c87defbd336 1c2b9291 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/23 09:14 linux-6.1.y 7c87defbd336 b10da5ec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/04/21 22:03 linux-6.1.y 7c87defbd336 0b6ab7ec .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/21 12:31 linux-6.1.y 7c87defbd336 3f2e655b .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/21 08:45 linux-6.1.y 7c87defbd336 3f2e655b .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/20 17:37 linux-6.1.y 7c87defbd336 e65da4ee .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/16 23:54 linux-6.1.y 8e8fc038cad5 de0a551d .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2026/04/16 05:53 linux-6.1.y 8e8fc038cad5 df15c5f3 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/06/28 09:08 linux-6.1.y 7e69c33e4858 fc9d8ee5 .config console log syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2026/05/02 16:35 linux-6.1.y 4931e0e1673d a0d91488 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/05/01 10:16 linux-6.1.y 4931e0e1673d 753c55b9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/28 21:14 linux-6.1.y 7c87defbd336 95008c03 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/28 13:20 linux-6.1.y 7c87defbd336 ce741359 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/24 04:30 linux-6.1.y 7c87defbd336 9cfb3ca7 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/24 02:25 linux-6.1.y 7c87defbd336 9cfb3ca7 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/23 01:57 linux-6.1.y 7c87defbd336 b10da5ec .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/22 20:45 linux-6.1.y 7c87defbd336 4595e353 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/22 00:34 linux-6.1.y 7c87defbd336 0b6ab7ec .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/21 19:22 linux-6.1.y 7c87defbd336 0b6ab7ec .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/20 15:09 linux-6.1.y 7c87defbd336 e65da4ee .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/18 15:46 linux-6.1.y 7c87defbd336 303e2802 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/18 13:47 linux-6.1.y 7c87defbd336 303e2802 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/18 08:40 linux-6.1.y 8e8fc038cad5 303e2802 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/17 12:05 linux-6.1.y 8e8fc038cad5 de0a551d .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/16 19:11 linux-6.1.y 8e8fc038cad5 4743f87d .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/16 00:51 linux-6.1.y 8e8fc038cad5 df15c5f3 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/15 20:58 linux-6.1.y 8e8fc038cad5 c441f497 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/15 20:52 linux-6.1.y 8e8fc038cad5 c441f497 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/15 19:11 linux-6.1.y 8e8fc038cad5 c441f497 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2026/04/15 18:08 linux-6.1.y 8e8fc038cad5 c441f497 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 lost connection to test machine
2023/03/08 14:43 linux-6.1.y 42616e0f09fb d2b00170 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
* Struck through repros no longer work on HEAD.