syzbot

 sign-in | mailing list | source | docs
🐞 Open [360]
🐞 Fixed [15]
🐞 Invalid [58]
⬇ Missing Backports [12]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

lost connection to test machine

Status: upstream: reported C repro on 2025/06/16 17:10
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+4305e0b617aee2c36ebc@syzkaller.appspotmail.com
First crash: 142d, last: 31m
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2025/06/30 upstream (ToT) d0b3b7b22dfa 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 2888d never 0/2 closed as invalid on 2017/12/09 08:45
android-5-15 lost connection to test machine origin:lts -1 C 314753 now 1127d 0/2 premoderation: reported C repro on 2022/10/05 10:32
android-44 lost connection to test machine (3) -1 C 259 2870d 2888d 0/2 closed as invalid on 2017/12/27 12:57
linux-4.14 lost connection to test machine -1 56267 1002d 2400d 0/1 upstream: reported on 2019/04/11 15:39
android-44 lost connection to test machine (4) -1 C 62294 2163d 2398d 0/2 public: reported C repro on 2019/04/14 00:00
android-49 lost connection to test machine (3) -1 C 109581 2163d 2397d 0/3 public: reported C repro on 2019/04/14 08:51
android-44 lost connection to test machine -1 79 2919d 2918d 0/2 closed as invalid on 2017/11/09 08:47
android-6-1 lost connection to test machine origin:lts -1 C 243945 now 910d 0/2 premoderation: reported C repro on 2023/05/10 12:05
android-6-12 lost connection to test machine origin:downstream -1 C 20894 33m 139d 0/1 premoderation: reported C repro on 2025/06/19 05:52
linux-4.4 lost connection to test machine -1 426 2235d 2396d 0/1 auto-closed as invalid on 2019/12/22 11:26
upstream lost connection to test machine (4) -1 C 1189 2809d 2823d 4/29 fixed on 2018/02/26 20:04
android-5-10 lost connection to test machine -1 C 544701 now 1464d 0/2 upstream: reported C repro on 2021/11/02 11:48
android-414 lost connection to test machine -1 C 23644 2163d 2400d 0/1 public: reported C repro on 2019/04/12 00:01
android-49 lost connection to test machine -1 C 8069 2918d 2918d 0/3 closed as invalid on 2017/11/09 10:06
upstream lost connection to test machine (2) -1 C 15874 2870d 2918d 0/29 closed as invalid on 2017/12/27 12:57
android-54 lost connection to test machine -1 syz 136755 163d 2126d 0/2 upstream: reported syz repro on 2020/01/10 15:22
upstream lost connection to test machine (5) -1 C error 2692836 now 2182d 0/29 moderation: reported C repro on 2019/11/15 12:45
upstream lost connection to test machine (3) -1 C 4251 2831d 2870d 4/29 fixed on 2018/02/04 23:45
upstream lost connection to test machine -1 C 25017 2918d 2918d 0/29 closed as invalid on 2017/11/09 10:06
linux-6.1 lost connection to test machine origin:upstream -1 C unreliable 72104 2h22m 973d 0/3 upstream: reported C repro on 2023/03/08 14:43
android-49 lost connection to test machine (2) -1 C 2946 2870d 2918d 0/3 closed as invalid on 2017/12/27 12:57
linux-5.15 lost connection to test machine origin:lts-only -1 C 28711 2h21m 973d 0/3 upstream: reported C repro on 2023/03/08 15:21
linux-4.19 lost connection to test machine -1 30440 1003d 2401d 0/1 upstream: reported on 2019/04/10 19:39
Crashes (10193):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/29 21:50 linux-6.6.y 3f5b4c104b7d fc9d8ee5 .config console log syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/06/27 03:20 linux-6.6.y 6282921b6825 803ce19b .config console log syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/06 00:52 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 22:32 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 19:26 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 17:49 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 15:52 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 10:30 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/04 22:22 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/04 20:34 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/04 16:42 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/04 11:41 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 23:49 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 17:27 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 14:28 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 10:06 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 08:21 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 06:23 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 04:51 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 03:32 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 01:45 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 23:33 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 22:04 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 20:13 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 18:26 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 09:54 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 08:00 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 06:18 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/02 01:32 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 20:43 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 19:11 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 17:42 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/01 17:12 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 15:33 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 14:48 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 14:47 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/01 07:56 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 06:34 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 05:33 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/01 04:41 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/01 00:00 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/10/31 22:19 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/10/31 20:53 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/10/31 20:49 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/10/31 18:20 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/10/31 18:00 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/10/31 17:05 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/06/17 19:03 linux-6.6.y c2603c511feb cfebc887 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 18:51 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 17:36 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 15:41 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 14:17 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 12:58 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 11:38 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 09:15 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 08:08 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 06:54 linux-6.6.y 0a805b6ea8cd a6c9c731 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 05:49 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 04:30 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/05 03:17 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/05 01:25 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 23:54 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 21:36 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 17:45 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 13:15 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 13:14 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 10:13 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 09:08 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 05:27 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 05:26 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 03:36 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 01:52 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/04 00:50 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 23:35 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 22:36 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 21:32 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 21:19 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 20:03 linux-6.6.y 0a805b6ea8cd 686bf657 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 15:57 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 14:21 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 14:16 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 12:38 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 11:20 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 07:31 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 07:26 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 03:41 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/11/03 03:29 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/03 01:15 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/02 20:25 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/02 19:30 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/11/02 17:51 linux-6.6.y 0a805b6ea8cd 2c50b6a9 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/06/16 17:09 linux-6.6.y c2603c511feb d1716036 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
* Struck through repros no longer work on HEAD.