syzbot


SYZFAIL: ShmemBuilder: too large output offset

Status: upstream: reported on 2025/06/14 08:08
Reported-by: syzbot+6c15e4e2cd6e724937e7@syzkaller.appspotmail.com
First crash: 31d, last: 31d

Sample crash report:
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: ShmemBuilder: too large output offset
size=262144 consumed=264764 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: repeatedly failed to execute the program
proc=4 req=39 state=3 status=67 (errno 35: Resource temporarily unavailable)


FreeBSD/amd64 (ci-freebsd-main-5.us-central1-b.c.syzkaller.internal) (ttyu0)

login: set $lines = 0
Password:
Login incorrect
login: show registers
Password:
Login incorrect
login: ps
Jun 14 08:08:20 ci-freebsd-main-5 login[748]: 2 LOGIN FAILURES ON ttyu0
Password:
Login incorrect
login: show malloc
Password:
Login incorrect
show all tcpcbs/l

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/14 08:08 freebsd-src c82662dc7123 0e8da31f console log report ci-freebsd-main SYZFAIL: ShmemBuilder: too large output offset
* Struck through repros no longer work on HEAD.