syzbot

 sign-in | mailing list | source | docs
🐞 Open [765]
🐞 Fixed [122]
🐞 Invalid [811]
⬇ Missing Backports [75]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

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: 864d, last: 52m
▶ ▼ 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 2779d never 0/2 closed as invalid on 2017/12/09 08:45
android-5-15 lost connection to test machine origin:lts -1 C 252198 5m 1018d 0/2 premoderation: reported C repro on 2022/10/05 10:32
android-44 lost connection to test machine (3) -1 C 259 2761d 2778d 0/2 closed as invalid on 2017/12/27 12:57
linux-4.14 lost connection to test machine -1 56267 892d 2291d 0/1 upstream: reported on 2019/04/11 15:39
android-44 lost connection to test machine (4) -1 C 62294 2054d 2288d 0/2 public: reported C repro on 2019/04/14 00:00
android-49 lost connection to test machine (3) -1 C 109581 2054d 2288d 0/3 public: reported C repro on 2019/04/14 08:51
android-44 lost connection to test machine -1 79 2809d 2809d 0/2 closed as invalid on 2017/11/09 08:47
android-6-1 lost connection to test machine origin:lts -1 C 200667 now 801d 0/2 premoderation: reported C repro on 2023/05/10 12:05
android-6-12 lost connection to test machine origin:downstream -1 C 8000 now 30d 0/1 premoderation: reported C repro on 2025/06/19 05:52
linux-6.6 lost connection to test machine origin:upstream -1 C 2404 1h08m 32d 0/2 upstream: reported C repro on 2025/06/16 17:10
linux-4.4 lost connection to test machine -1 426 2126d 2286d 0/1 auto-closed as invalid on 2019/12/22 11:26
upstream lost connection to test machine (4) -1 C 1189 2699d 2714d 4/29 fixed on 2018/02/26 20:04
android-5-10 lost connection to test machine -1 C 442656 now 1355d 0/2 upstream: reported C repro on 2021/11/02 11:48
android-414 lost connection to test machine -1 C 23644 2054d 2290d 0/1 public: reported C repro on 2019/04/12 00:01
android-49 lost connection to test machine -1 C 8069 2809d 2809d 0/3 closed as invalid on 2017/11/09 10:06
upstream lost connection to test machine (2) -1 C 15874 2761d 2809d 0/29 closed as invalid on 2017/12/27 12:57
android-54 lost connection to test machine -1 syz 136755 54d 2017d 0/2 upstream: reported syz repro on 2020/01/10 15:22
upstream lost connection to test machine (5) -1 C error 2351804 now 2073d 0/29 moderation: reported C repro on 2019/11/15 12:45
upstream lost connection to test machine (3) -1 C 4251 2721d 2760d 4/29 fixed on 2018/02/04 23:45
upstream lost connection to test machine -1 C 25017 2809d 2809d 0/29 closed as invalid on 2017/11/09 10:06
android-49 lost connection to test machine (2) -1 C 2946 2761d 2809d 0/3 closed as invalid on 2017/12/27 12:57
linux-5.15 lost connection to test machine origin:lts-only -1 C 25837 23m 864d 0/3 upstream: reported C repro on 2023/03/08 15:21
linux-4.19 lost connection to test machine -1 30440 894d 2291d 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 (61000):
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
2025/07/19 16:13 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 15:44 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 14:40 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 12:56 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 11:18 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 08:29 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 05:09 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 01:54 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 23:32 linux-6.1.y 3369c6df2fae 7117feec .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 17:10 linux-6.1.y 3369c6df2fae 88248e14 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 09:57 linux-6.1.y 3369c6df2fae 88248e14 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 01:26 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 00:54 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/17 23:08 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/17 20:40 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/17 18:58 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/17 16:33 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/16 19:04 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/16 17:57 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/16 13:02 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/16 05:27 linux-6.1.y f2198ea7eb3e 03fcfc4b .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/15 10:15 linux-6.1.y f2198ea7eb3e 03fcfc4b .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/15 00:35 linux-6.1.y f2198ea7eb3e d8fc7335 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/14 08:20 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/14 03:45 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/13 20:00 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/13 11:47 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/13 05:24 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/12 22:28 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/12 17:17 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/12 16:47 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/12 16:08 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/12 07:37 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/11 18:21 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/11 16:53 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/11 10:34 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/11 09:03 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/11 03:09 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/11 02:33 linux-6.1.y dfc486ec9cce 3cda49cf .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/10 13:33 linux-6.1.y 04d1ccaa9c28 956bd956 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/10 09:35 linux-6.1.y 04d1ccaa9c28 956bd956 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/09 20:09 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/09 05:23 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/08 22:54 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/08 22:12 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/08 10:29 linux-6.1.y 04d1ccaa9c28 4f67c4ae .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan 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
2025/07/19 14:32 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/19 12:53 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/19 09:07 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/19 07:49 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/19 06:44 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/19 05:04 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/19 04:40 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 22:24 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 21:07 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 20:32 linux-6.1.y 3369c6df2fae 7117feec .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 15:06 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 14:55 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 12:53 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 12:30 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 11:29 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 09:59 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 09:00 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 05:05 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 04:34 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 03:07 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/18 02:39 linux-6.1.y 3369c6df2fae 88248e14 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/18 00:13 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 22:59 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 17:38 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/17 15:35 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 13:52 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 12:56 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 10:23 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 08:04 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 07:14 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 05:46 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 05:40 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 03:53 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 02:36 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/17 00:36 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 23:29 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 22:29 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 22:26 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 21:16 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 20:15 linux-6.1.y f2198ea7eb3e 44f8051e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf lost connection to test machine
2025/07/16 17:00 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 15:47 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 15:45 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan lost connection to test machine
2025/07/16 11:25 linux-6.1.y f2198ea7eb3e 124ec9cc .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
2025/07/08 14:59 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log info [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.