syzbot

 sign-in | mailing list | source | docs
🐞 Open [482]
🐞 Fixed [23]
🐞 Invalid [268]
⬇ Missing Backports [16]
≡ 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: 374d, last: 1h42m
▶ ▼ 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 3121d never 0/2 closed as invalid on 2017/12/09 08:45
android-5-15 lost connection to test machine origin:lts -1 C 460059 now 1360d 0/2 premoderation: reported C repro on 2022/10/05 10:32
android-44 lost connection to test machine (3) -1 C 259 3103d 3120d 0/2 closed as invalid on 2017/12/27 12:57
linux-4.14 lost connection to test machine -1 56267 1234d 2632d 0/1 upstream: reported on 2019/04/11 15:39
android-44 lost connection to test machine (4) -1 C 62294 2396d 2630d 0/2 public: reported C repro on 2019/04/14 00:00
android-49 lost connection to test machine (3) -1 C 109581 2396d 2630d 0/3 public: reported C repro on 2019/04/14 08:51
android-44 lost connection to test machine -1 79 3151d 3151d 0/2 closed as invalid on 2017/11/09 08:47
android-6-1 lost connection to test machine origin:upstream -1 C 364396 now 1143d 0/2 premoderation: reported C repro on 2023/05/10 12:05
android-6-12 lost connection to test machine origin:downstream -1 C 75681 now 372d 0/1 premoderation: reported C repro on 2025/06/19 05:52
linux-4.4 lost connection to test machine -1 426 2468d 2628d 0/1 auto-closed as invalid on 2019/12/22 11:26
upstream lost connection to test machine (4) -1 C 1189 3041d 3055d 4/29 fixed on 2018/02/26 20:04
android-5-10 lost connection to test machine -1 C 840299 now 1697d 0/2 upstream: reported C repro on 2021/11/02 11:48
android-414 lost connection to test machine -1 C 23644 2396d 2632d 0/1 public: reported C repro on 2019/04/12 00:01
android-49 lost connection to test machine -1 C 8069 3151d 3151d 0/3 closed as invalid on 2017/11/09 10:06
upstream lost connection to test machine (2) -1 C 15874 3103d 3151d 0/29 closed as invalid on 2017/12/27 12:57
android-54 lost connection to test machine -1 syz 136755 395d 2358d 0/2 upstream: reported syz repro on 2020/01/10 15:22
upstream lost connection to test machine (5) -1 C error 3114317 now 2415d 0/29 moderation: reported C repro on 2019/11/15 12:45
upstream lost connection to test machine (3) -1 C 4251 3063d 3102d 4/29 fixed on 2018/02/04 23:45
upstream lost connection to test machine -1 C 25017 3151d 3151d 0/29 closed as invalid on 2017/11/09 10:06
linux-6.1 lost connection to test machine origin:upstream -1 C unreliable 79936 15m 1205d 0/3 upstream: reported C repro on 2023/03/08 14:43
android-49 lost connection to test machine (2) -1 C 2946 3103d 3151d 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 30803 8h16m 1205d 0/3 upstream: reported C repro on 2023/03/08 15:21
linux-4.19 lost connection to test machine -1 30440 1236d 2633d 0/1 upstream: reported on 2019/04/10 19:39
Crashes (17054):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/08 02:05 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-6-kasan lost connection to test machine
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
2026/01/20 07:41 linux-6.6.y cbb31f77b879 572effc1 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/19 17:33 linux-6.6.y cbb31f77b879 a9fc5226 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/19 14:15 linux-6.6.y cbb31f77b879 a9fc5226 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/19 04:06 linux-6.6.y cbb31f77b879 20d37d28 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/18 12:51 linux-6.6.y cbb31f77b879 20d37d28 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/18 05:01 linux-6.6.y cbb31f77b879 20d37d28 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/17 02:51 linux-6.6.y c596736dadab 20d37d28 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/16 20:54 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/16 19:01 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/16 11:14 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/16 02:27 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/16 01:48 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/15 20:10 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/15 00:57 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/14 13:28 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/14 08:50 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/13 18:47 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/01/13 14:00 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/13 06:13 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/13 04:34 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/12 16:02 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/12 09:47 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/12 08:34 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/12 06:05 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/12 01:17 linux-6.6.y c596736dadab d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/11 02:42 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/10 18:40 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/09 18:16 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/09 16:54 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/08 19:55 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/08 10:02 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/07 16:21 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/07 14:57 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/07 13:50 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/01/07 12:46 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/07 10:52 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/01/06 21:53 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/06 18:11 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/01/05 22:53 linux-6.6.y 5fa4793a2d2d d6526ea3 .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
2026/06/26 11:32 linux-6.6.y d1cfde2d5d15 7ff32d8b .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/26 04:26 linux-6.6.y d1cfde2d5d15 7ff32d8b .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/25 10:39 linux-6.6.y d1cfde2d5d15 cfa969bf .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/25 00:02 linux-6.6.y d1cfde2d5d15 302586aa .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/24 18:12 linux-6.6.y d1cfde2d5d15 302586aa .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/22 20:41 linux-6.6.y d1cfde2d5d15 5a630be6 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/22 19:26 linux-6.6.y d1cfde2d5d15 5a630be6 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/22 11:21 linux-6.6.y d1cfde2d5d15 43bfcdb0 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/22 02:53 linux-6.6.y d1cfde2d5d15 43bfcdb0 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/19 15:50 linux-6.6.y d1cfde2d5d15 570c59ee .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/19 13:05 linux-6.6.y 924b4a879cbb 570c59ee .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/19 11:03 linux-6.6.y 924b4a879cbb 570c59ee .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/19 09:16 linux-6.6.y 924b4a879cbb 570c59ee .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/17 12:14 linux-6.6.y 924b4a879cbb 62cc6db3 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/17 08:16 linux-6.6.y 924b4a879cbb 62cc6db3 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/16 18:37 linux-6.6.y 924b4a879cbb a3998659 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/13 21:49 linux-6.6.y 924b4a879cbb 1d2f3589 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/13 15:52 linux-6.6.y 924b4a879cbb 1d2f3589 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/13 14:40 linux-6.6.y 924b4a879cbb 1d2f3589 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/12 23:30 linux-6.6.y 924b4a879cbb 1d2f3589 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/12 20:57 linux-6.6.y 924b4a879cbb 1d2f3589 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/12 13:51 linux-6.6.y 924b4a879cbb e93da63e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/12 05:27 linux-6.6.y 924b4a879cbb e93da63e .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/11 08:49 linux-6.6.y 924b4a879cbb b754d2d8 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/11 08:40 linux-6.6.y 924b4a879cbb b754d2d8 .config console log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/09 04:57 linux-6.6.y 924b4a879cbb 656e94c6 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/08 12:13 linux-6.6.y 924b4a879cbb cc095639 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/06 16:17 linux-6.6.y 924b4a879cbb cc095639 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/04 23:52 linux-6.6.y 924b4a879cbb 197909be .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/04 22:01 linux-6.6.y 924b4a879cbb 197909be .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/04 22:00 linux-6.6.y 924b4a879cbb 197909be .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/04 19:11 linux-6.6.y 924b4a879cbb 197909be .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/03 10:18 linux-6.6.y 924b4a879cbb 3c0d2131 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/03 09:10 linux-6.6.y 924b4a879cbb 3c0d2131 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/03 01:23 linux-6.6.y 924b4a879cbb 3c0d2131 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/02 20:01 linux-6.6.y 924b4a879cbb 62fe1528 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/02 00:35 linux-6.6.y 924b4a879cbb 1095583b .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/01 21:36 linux-6.6.y 924b4a879cbb 1095583b .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/01 20:26 linux-6.6.y 924b4a879cbb 1095583b .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/01 19:20 linux-6.6.y 924b4a879cbb 8d8eeb3a .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/01 08:26 linux-6.6.y 0a40c6fbd105 8d8eeb3a .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/06/01 04:54 linux-6.6.y 0a40c6fbd105 6b4a8443 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/06/01 01:21 linux-6.6.y 0a40c6fbd105 6b4a8443 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/05/31 18:13 linux-6.6.y 0a40c6fbd105 6b4a8443 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf lost connection to test machine
2026/05/31 17:33 linux-6.6.y 0a40c6fbd105 6b4a8443 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/05/31 03:06 linux-6.6.y 0a40c6fbd105 6b4a8443 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/05/30 14:13 linux-6.6.y 0a40c6fbd105 6b4a8443 .config console log info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan lost connection to test machine
2026/05/30 05:49 linux-6.6.y 0a40c6fbd105 6b4a8443 .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.