syzbot


SYZFAIL: dup2(NUM, kInPipeFd) failed (2)

Status: upstream: reported on 2025/05/12 06:00
Reported-by: syzbot+50f78babe0d069a8ed75@syzkaller.appspotmail.com
First crash: 18d, last: 18d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd SYZFAIL: dup2(NUM, kInPipeFd) failed syz 4 1252d 1269d 0/3 closed as invalid on 2021/12/26 09:22

Sample crash report:
SYZFAIL: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
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: dup2(0, kInPipeFd) failed
 (errno 9: Bad file descriptor)
SYZFAIL: repeatedly failed to execute the program
proc=9 req=5295 state=1 status=67 (errno 4: Interrupted system call)

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/12 06:00 openbsd 1d7d4b26237d 77908e5f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: dup2(NUM, kInPipeFd) failed
* Struck through repros no longer work on HEAD.