syzbot

 sign-in | mailing list | source | docs
🐞 Open [306]
🐞 Fixed [1]
🐞 Invalid [0]
⬇ Missing Backports [9]
≡ 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: 70d, last: 2h47m
▶ ▼ 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 2817d never 0/2 closed as invalid on 2017/12/09 08:45
android-5-15 lost connection to test machine origin:lts -1 C 274630 17m 1055d 0/2 premoderation: reported C repro on 2022/10/05 10:32
android-44 lost connection to test machine (3) -1 C 259 2798d 2816d 0/2 closed as invalid on 2017/12/27 12:57
linux-4.14 lost connection to test machine -1 56267 930d 2328d 0/1 upstream: reported on 2019/04/11 15:39
android-44 lost connection to test machine (4) -1 C 62294 2091d 2326d 0/2 public: reported C repro on 2019/04/14 00:00
android-49 lost connection to test machine (3) -1 C 109581 2091d 2325d 0/3 public: reported C repro on 2019/04/14 08:51
android-44 lost connection to test machine -1 79 2847d 2846d 0/2 closed as invalid on 2017/11/09 08:47
android-6-1 lost connection to test machine origin:lts -1 C 214521 1h10m 838d 0/2 premoderation: reported C repro on 2023/05/10 12:05
android-6-12 lost connection to test machine origin:downstream -1 C 17270 35m 68d 0/1 premoderation: reported C repro on 2025/06/19 05:52
linux-4.4 lost connection to test machine -1 426 2163d 2324d 0/1 auto-closed as invalid on 2019/12/22 11:26
upstream lost connection to test machine (4) -1 C 1189 2737d 2751d 4/29 fixed on 2018/02/26 20:04
android-5-10 lost connection to test machine -1 C 476492 now 1392d 0/2 upstream: reported C repro on 2021/11/02 11:48
android-414 lost connection to test machine -1 C 23644 2091d 2328d 0/1 public: reported C repro on 2019/04/12 00:01
android-49 lost connection to test machine -1 C 8069 2846d 2846d 0/3 closed as invalid on 2017/11/09 10:06
upstream lost connection to test machine (2) -1 C 15874 2798d 2846d 0/29 closed as invalid on 2017/12/27 12:57
android-54 lost connection to test machine -1 syz 136755 91d 2054d 0/2 upstream: reported syz repro on 2020/01/10 15:22
upstream lost connection to test machine (5) -1 C error 2466212 now 2110d 0/29 moderation: reported C repro on 2019/11/15 12:45
upstream lost connection to test machine (3) -1 C 4251 2759d 2798d 4/29 fixed on 2018/02/04 23:45
upstream lost connection to test machine -1 C 25017 2846d 2846d 0/29 closed as invalid on 2017/11/09 10:06
linux-6.1 lost connection to test machine origin:upstream -1 C unreliable 64066 21m 901d 0/3 upstream: reported C repro on 2023/03/08 14:43
android-49 lost connection to test machine (2) -1 C 2946 2798d 2846d 0/3 closed as invalid on 2017/12/27 12:57
linux-5.15 lost connection to test machine origin:lts-only -1 C 26883 19m 901d 0/3 upstream: reported C repro on 2023/03/08 15:21
linux-4.19 lost connection to test machine -1 30440 931d 2329d 0/1 upstream: reported on 2019/04/10 19:39
Crashes (5033):
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
2025/08/26 04:04 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/26 01:29 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/25 21:28 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/25 11:30 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/25 10:43 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 20:08 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 18:20 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 15:59 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 14:17 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 12:47 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 10:25 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 08:50 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 07:10 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 05:47 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 04:02 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 01:03 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/23 19:28 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/23 08:40 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/23 06:32 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/23 01:19 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/22 23:44 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/22 17:01 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/22 12:36 linux-6.6.y bb9c90ab9c5a bf27483f .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/22 01:40 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 23:54 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 23:16 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 22:28 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 20:36 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 19:10 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 17:47 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 07:56 linux-6.6.y bb9c90ab9c5a 0b9605c8 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/21 07:07 linux-6.6.y bb9c90ab9c5a 0b9605c8 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/21 04:54 linux-6.6.y bb9c90ab9c5a 0b9605c8 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/20 13:48 linux-6.6.y bb9c90ab9c5a 79512909 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/20 11:33 linux-6.6.y bb9c90ab9c5a 79512909 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/20 09:46 linux-6.6.y bb9c90ab9c5a 79512909 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/20 01:54 linux-6.6.y bb9c90ab9c5a 254a27c1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/20 00:21 linux-6.6.y bb9c90ab9c5a 254a27c1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/19 23:01 linux-6.6.y bb9c90ab9c5a 254a27c1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/19 20:11 linux-6.6.y bb9c90ab9c5a 254a27c1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/19 17:08 linux-6.6.y bb9c90ab9c5a 254a27c1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/19 09:19 linux-6.6.y bb9c90ab9c5a 523f460e .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf 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
2025/08/26 00:36 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/25 22:57 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 22:44 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 20:34 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 19:32 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/25 18:18 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 15:52 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 08:40 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 04:58 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 02:43 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/25 01:26 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 23:13 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 20:16 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/24 18:06 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 13:49 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 06:25 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 05:13 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 03:06 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/24 02:05 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/23 21:37 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/23 20:36 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/23 19:21 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/23 16:19 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/23 11:31 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/23 09:46 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/23 07:39 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 22:16 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/22 19:24 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 17:46 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 16:21 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 15:20 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 09:57 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 08:21 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 07:54 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 06:41 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 05:51 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 04:39 linux-6.6.y bb9c90ab9c5a bf27483f .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2025/08/22 03:17 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/22 01:08 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/21 22:09 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/21 21:46 linux-6.6.y bb9c90ab9c5a 3e79b825 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2025/08/21 17:34 linux-6.6.y bb9c90ab9c5a 3e79b825 .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.