SYZFAIL: mount(dev) failed

Status: premoderation: reported syz repro on 2026/09/10 12:31
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+ee15b1f79c318afcbb22@syzkaller.appspotmail.com
First crash: 37d, last: 18h00m
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2026/09/27 lts (merge base) e9f803bf2b03 syz [report] SYZFAIL: mount(dev) failed
2026/09/27 upstream (ToT) d266640c6c76 syz [report] SYZFAIL: mount(dev) failed
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 SYZFAIL: mount(dev) failed -1 syz 31 5h25m 38d 0/2 premoderation: reported syz repro on 2026/09/09 06:58
linux-5.15 SYZFAIL: mount(dev) failed -1 7 1d05h 23d 0/3 upstream: reported on 2026/09/24 10:40
linux-6.1 SYZFAIL: mount(dev) failed -1 syz 6 4d12h 30d 0/3 upstream: reported syz repro on 2026/09/17 06:20
linux-6.6 SYZFAIL: mount(dev) failed -1 3 1d20h 12d 0/2 upstream: reported on 2026/10/05 07:08
android-5-15 SYZFAIL: mount(dev) failed origin:upstream -1 syz 31 2h53m 38d 0/2 premoderation: reported syz repro on 2026/09/08 23:31
android-6-1 SYZFAIL: mount(dev) failed -1 syz 30 1d22h 33d 0/2 premoderation: reported syz repro on 2026/09/14 15:04

Sample crash report:
SYZFAIL: mount(dev) failed
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: tun: can't open /dev/net/tun
 (errno 20: Not a directory)
loop exited with status 67
SYZFAIL: repeatedly failed to execute the program
proc=3 req=20 state=3 status=67 (errno 32: Broken pipe)
connection error: failed to recv *flatrpc.ExecutorMessageRawT: read tcp 127.0.0.1:39801->127.0.0.1:40712: read: connection reset by peer

Crashes (21):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/10/15 21:25 android16-6.12 1973ed3d1d63 3f2522c6 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/12 17:32 android16-6.12 602cc832d2b7 745a967f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/10 03:26 android16-6.12 e65d894191a4 4f92358f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/08 02:17 android16-6.12 c7ad8c94d619 6520ecdb .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/06 07:54 android16-6.12 31493cc8d965 f7710056 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/04 14:27 android16-6.12 3a7d1771d492 57bbd979 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/01 19:47 android16-6.12 f82d63769e69 f5cdae2f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/01 06:28 android16-6.12 dfd0de11e80f 38f7f0d1 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/09/25 10:36 android16-6.12 558b94a8d268 f281d9d2 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/09/12 09:46 android16-6.12 8eff909dd82d 70a60e12 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/09/11 23:43 android16-6.12 37fc3d36e6e2 b6a5eeb7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/17 05:00 android16-6.12 49f96790cc76 432c0077 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/17 02:37 android16-6.12 49f96790cc76 432c0077 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/14 05:48 android16-6.12 ffba6317c672 7321cd29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/11 16:21 android16-6.12 c82b35cb007f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/11 08:20 android16-6.12 c82b35cb007f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/10/06 11:29 android16-6.12 31493cc8d965 f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/09/26 16:59 android16-6.12 516976327553 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/09/14 10:43 android16-6.12 8eff909dd82d 70a60e12 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/09/10 16:09 android16-6.12 89698cd757af 1fe56c0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
2026/09/10 12:30 android16-6.12 89698cd757af 1fe56c0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust SYZFAIL: mount(dev) failed
* Struck through repros no longer work on HEAD.