SYZFAIL: ioctl remote attach failed (3)

Status: fixed on 2021/12/30 01:33
Reported-by: syzbot+ab2016d729cda7b0d003@syzkaller.appspotmail.com
Fix commit: 982627fcf222 Do not allow send/receive of kcov descriptors as the file descriptor can be kept alive longer than expected causing syzkaller to no longer being able to enable remote coverage.
First crash: 1787d, last: 1782d
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd SYZFAIL: ioctl remote attach failed (4) -1 68 1664d 1778d 0/4 auto-closed as invalid on 2022/07/24 17:48
openbsd SYZFAIL: ioctl remote attach failed -1 3 1909d 1962d 0/4 auto-closed as invalid on 2021/11/21 23:20
openbsd SYZFAIL: ioctl remote attach failed (6) -1 101910 now 650d 0/4 upstream: reported on 2025/02/03 09:06
openbsd SYZFAIL: ioctl remote attach failed (5) -1 3214 725d 858d 0/4 auto-obsoleted due to no activity on 2025/01/09 12:00
openbsd SYZFAIL: ioctl remote attach failed (2) -1 6 1792d 1811d 0/4 closed as invalid on 2021/12/21 06:21

Sample crash report:
SYZFAIL: ioctl remote attach failed
 (errno 16: Device busy)



OpenBSD/amd64 (L{,b–&0;ʄMLfګ&
I290q!pEΞ&2l^A4BzqA@S Zׂ@&coQJ~shdE:1ڻWm3g) (tty00)

login:

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/12/29 04:48 openbsd 8bad472766c2 76c8cf06 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/29 02:44 openbsd 8bad472766c2 76c8cf06 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/29 01:30 openbsd 8bad472766c2 76c8cf06 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/28 19:26 openbsd 8bad472766c2 76c8cf06 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/28 19:01 openbsd 8bad472766c2 76c8cf06 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/28 09:25 openbsd bb818c30de60 6b3c5e64 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/28 07:17 openbsd bb818c30de60 6b3c5e64 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/28 03:00 openbsd bb818c30de60 6b3c5e64 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/27 18:11 openbsd e82b5ebce50c 5140bd58 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/27 17:21 openbsd e82b5ebce50c 5140bd58 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/27 15:34 openbsd e82b5ebce50c 5140bd58 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/27 14:27 openbsd e82b5ebce50c 5140bd58 .config console log report ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2021/12/24 13:53 openbsd 9d2191b71eea 6caa12e4 .config console log report ci-openbsd-main SYZFAIL: ioctl remote attach failed
* Struck through repros no longer work on HEAD.