syzbot


SYZFAIL: ioctl remote attach failed (6)

Status: upstream: reported on 2025/02/03 09:06
Reported-by: syzbot+36f9133b5f33a54a89a3@syzkaller.appspotmail.com
First crash: 303d, last: now
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 1318d 1432d 0/3 auto-closed as invalid on 2022/07/24 17:48
openbsd SYZFAIL: ioctl remote attach failed -1 3 1563d 1615d 0/3 auto-closed as invalid on 2021/11/21 23:20
openbsd SYZFAIL: ioctl remote attach failed (3) -1 13 1435d 1440d 3/3 fixed on 2021/12/30 01:33
openbsd SYZFAIL: ioctl remote attach failed (5) -1 3214 378d 511d 0/3 auto-obsoleted due to no activity on 2025/01/09 12:00
openbsd SYZFAIL: ioctl remote attach failed (2) -1 6 1445d 1464d 0/3 closed as invalid on 2021/12/21 06:21

Sample crash report:
SYZFAIL: ioctl remote attach failed
 (errno 16: Device busy)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: ioctl remote attach failed
 (errno 16: Device busy)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: ioctl remote attach failed
 (errno 16: Device busy)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: ioctl remote attach failed
 (errno 16: Device busy)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: ioctl remote attach failed
 (errno 16: Device busy)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
malloc() warning: unknown char in MALLOC_OPTIONS
SYZFAIL: tun_id out of range
tun_id=8 (errno 1: Operation not permitted)
SYZFAIL: repeatedly failed to execute the program
proc=8 req=7165 state=1 status=67 (errno 4: Interrupted system call)
malloc(): allocation too large, type = 29, size = 16796513700
uvn_flush: obj=0xfffffd806ec90788, offset=0x3ff000.  error during pageout.
uvn_flush: WARNING: changes to page may be lost!

Crashes (44049):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/04 01:59 openbsd 4ae131efb048 cee4cb10 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/04 00:55 openbsd 4ae131efb048 cee4cb10 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 23:53 openbsd 4ae131efb048 cee4cb10 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 22:52 openbsd 4ae131efb048 cee4cb10 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 22:29 openbsd 4ae131efb048 cee4cb10 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 20:59 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 19:54 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 18:54 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 18:47 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 17:44 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 16:48 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 15:44 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 14:51 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 13:50 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 13:04 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 12:02 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 11:23 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 10:18 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 09:57 openbsd fcb10a4bf1a4 98d1f71f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 08:56 openbsd fcb10a4bf1a4 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 07:53 openbsd fcb10a4bf1a4 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 07:42 openbsd fcb10a4bf1a4 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 06:41 openbsd fcb10a4bf1a4 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 05:39 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 05:21 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 04:18 openbsd cbd41aff2336 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 03:26 openbsd cbd41aff2336 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/03 02:20 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 01:32 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 00:25 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/03 00:11 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 22:51 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 22:05 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 21:04 openbsd cbd41aff2336 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/02 20:27 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 19:24 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 19:00 openbsd cbd41aff2336 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/02 17:56 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 17:33 openbsd 80126d5ff84a d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 16:18 openbsd 2f5495769435 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 15:57 openbsd 2f5495769435 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/02 14:54 openbsd 2f5495769435 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: ioctl remote attach failed
2025/12/02 13:47 openbsd 2f5495769435 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/12/02 13:11 openbsd 2f5495769435 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
2025/05/31 00:17 openbsd 12e4c257ea80 3d2f584d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid SYZFAIL: ioctl remote attach failed
2025/02/03 09:06 openbsd db5d28f093d6 568559e4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: ioctl remote attach failed
* Struck through repros no longer work on HEAD.