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: 66d, last: 45m
▶ ▼ 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 -1 113 11h47m 246d 0/2 upstream: reported on 2026/01/24 21:54
android-54 SYZFAIL: failed to mkdtemp -1 syz 385 517d 2043d 0/2 upstream: reported syz repro on 2021/02/21 23:53
android-5-15 SYZFAIL: failed to mkdtemp origin:lts -1 syz 813 703d 1012d 0/2 auto-obsoleted due to no activity on 2024/12/13 10:36
linux-5.15 SYZFAIL: failed to mkdtemp (2) -1 syz 436 8h47m 244d 0/3 upstream: reported syz repro on 2026/01/26 17:02
linux-6.1 SYZFAIL: failed to mkdtemp (2) -1 1143 1h38m 246d 0/3 upstream: reported on 2026/01/24 18:54
linux-4.14 SYZFAIL: failed to mkdtemp -1 syz error 22 1489d 2043d 0/1 upstream: reported syz repro on 2021/02/22 05:35
upstream SYZFAIL: failed to mkdtemp -1 syz error inconclusive 730 1336d 2043d 0/29 auto-obsoleted due to no activity on 2023/05/10 07:53
linux-6.1 SYZFAIL: failed to mkdtemp -1 511 703d 825d 0/3 auto-obsoleted due to no activity on 2025/01/02 19:35
android-6-12 SYZFAIL: failed to mkdtemp -1 74 1d09h 51d 0/1 premoderation: reported on 2026/08/07 10:45
linux-4.19 SYZFAIL: failed to mkdtemp -1 syz error 99 1660d 2043d 0/1 upstream: reported syz repro on 2021/02/21 23:52
linux-5.15 SYZFAIL: failed to mkdtemp -1 456 703d 825d 0/3 auto-obsoleted due to no activity on 2025/01/02 16:14
android-5-10 SYZFAIL: failed to mkdtemp -1 15 1620d 1788d 0/2 auto-closed as invalid on 2022/07/20 02:36
android-5-10 SYZFAIL: failed to mkdtemp (2) -1 syz done error 2773 2h32m 1224d 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 3109 2h29m 1048d 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=0 req=2955 state=1 status=67 (errno 9: Bad file descriptor)
2026/08/22 23:04:24 executed programs: 3094
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

Crashes (1854):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/22 23:07 android13-5.15-lts dd960aad97f0 1e72964b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/19 21:20 android13-5.15-lts bbd17eb595bb 1e72964b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/08/16 23:21 android13-5.15-lts 54275df9611d 746171ee .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
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
2026/09/27 22:00 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 20:22 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 18:10 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 16:47 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 14:33 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 13:07 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 11:16 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 09:45 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 08:42 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 07:39 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 06:32 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 04:42 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 04:41 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/27 03:16 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 23:38 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 22:36 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 21:13 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 19:46 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 16:47 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 16:47 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 14:52 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 13:36 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 11:42 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 10:34 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 10:26 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 08:52 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 04:41 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 02:51 android13-5.15-lts 776976664f31 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 01:56 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/26 00:20 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 23:03 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 21:52 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 20:04 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 18:56 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 18:50 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 17:34 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 14:25 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 13:15 android13-5.15-lts 81cf8006a12f f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 11:14 android13-5.15-lts 5bfe2b8c1439 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 09:49 android13-5.15-lts 5bfe2b8c1439 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 05:47 android13-5.15-lts 5bfe2b8c1439 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 05:47 android13-5.15-lts 5bfe2b8c1439 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/25 02:35 android13-5.15-lts 5bfe2b8c1439 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 SYZFAIL: failed to mkdtemp
2026/09/18 22:40 android13-5.15-lts 5bfe2b8c1439 853b104b .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.