SYZFAIL: failed to mkdtemp (2)

Status: premoderation: reported syz repro on 2026/07/23 02:58
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+a46a81dca88f6f6958f0@syzkaller.appspotmail.com
First crash: 16d, last: 24m
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2026/08/04 lts (merge base) c86c4726e7f0 syz [report] SYZFAIL: failed to mkdtemp
2026/08/04 upstream (ToT) 848acc8ffe1b syz [report] SYZFAIL: posix_spawnp failed
▶ ▼ Similar bugs (14)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 SYZFAIL: failed to mkdtemp -1 96 1d02h 195d 0/2 upstream: reported on 2026/01/24 21:54
android-54 SYZFAIL: failed to mkdtemp -1 syz 385 466d 1993d 0/2 upstream: reported syz repro on 2021/02/21 23:53
android-5-15 SYZFAIL: failed to mkdtemp origin:lts -1 syz 813 652d 962d 0/2 auto-obsoleted due to no activity on 2024/12/13 10:36
linux-5.15 SYZFAIL: failed to mkdtemp (2) -1 199 10h16m 193d 0/3 upstream: reported on 2026/01/26 17:02
linux-6.1 SYZFAIL: failed to mkdtemp (2) -1 491 3h09m 195d 0/3 upstream: reported on 2026/01/24 18:54
linux-4.14 SYZFAIL: failed to mkdtemp -1 syz error 22 1438d 1992d 0/1 upstream: reported syz repro on 2021/02/22 05:35
upstream SYZFAIL: failed to mkdtemp -1 syz error inconclusive 730 1285d 1993d 0/29 auto-obsoleted due to no activity on 2023/05/10 07:53
linux-6.1 SYZFAIL: failed to mkdtemp -1 511 652d 774d 0/3 auto-obsoleted due to no activity on 2025/01/02 19:35
android-6-12 SYZFAIL: failed to mkdtemp -1 1 17h32m 17h32m 0/1 premoderation: reported on 2026/08/07 10:45
linux-4.19 SYZFAIL: failed to mkdtemp -1 syz error 99 1610d 1993d 0/1 upstream: reported syz repro on 2021/02/21 23:52
linux-5.15 SYZFAIL: failed to mkdtemp -1 456 652d 774d 0/3 auto-obsoleted due to no activity on 2025/01/02 16:14
android-5-10 SYZFAIL: failed to mkdtemp -1 15 1570d 1737d 0/2 auto-closed as invalid on 2022/07/20 02:36
android-5-10 SYZFAIL: failed to mkdtemp (2) -1 syz done error 2700 13h42m 1173d 0/2 premoderation: reported syz repro on 2023/05/22 11:24
android-6-1 SYZFAIL: failed to mkdtemp origin:upstream -1 syz error error 1920 1h11m 997d 0/2 premoderation: reported syz repro on 2023/11/14 15:04

Sample crash report:
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: failed to mkdtemp
 (errno 30: Read-only file system)
SYZFAIL: repeatedly failed to execute the program
proc=2 req=617 state=1 status=67 (errno 9: Bad file descriptor)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

Crashes (444):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/01 07:48 android13-5.15-lts 61d896ee2a80 e611ffe1 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/07/31 22:25 android13-5.15-lts 61d896ee2a80 7664cf44 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/07/24 22:22 android13-5.15-lts 61d896ee2a80 dd737a83 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/08 03:22 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/08 01:22 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/08 01:15 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/08 00:10 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 23:48 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 22:47 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 20:25 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 18:41 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 16:30 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 13:44 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 12:28 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 11:55 android13-5.15-lts 6148a1b6bae4 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 10:32 android13-5.15-lts b885b84af7a2 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 08:23 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 06:37 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 06:25 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 03:45 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 02:36 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/07 01:05 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 23:50 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 22:15 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 20:10 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 20:09 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 18:29 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 14:42 android13-5.15-lts b885b84af7a2 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 12:10 android13-5.15-lts b885b84af7a2 cd5b1963 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 09:58 android13-5.15-lts b885b84af7a2 cd5b1963 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 07:04 android13-5.15-lts b885b84af7a2 cd5b1963 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/06 04:33 android13-5.15-lts b885b84af7a2 cd5b1963 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 18:14 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 17:31 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 15:12 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 14:12 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 11:49 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 05:55 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 03:36 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 03:35 android13-5.15-lts b885b84af7a2 52aa2820 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/05 00:45 android13-5.15-lts b885b84af7a2 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/04 21:17 android13-5.15-lts b885b84af7a2 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/04 16:29 android13-5.15-lts b885b84af7a2 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/04 13:06 android13-5.15-lts b885b84af7a2 9451e17e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/04 10:19 android13-5.15-lts b885b84af7a2 9451e17e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/04 09:44 android13-5.15-lts b885b84af7a2 9451e17e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
* Struck through repros no longer work on HEAD.