syzbot


SYZFAIL: invalid kcov comp type (4)

Status: upstream: reported on 2025/02/11 17:01
Reported-by: syzbot+e18a17c4a5dabeb7ef76@syzkaller.appspotmail.com
First crash: 10d, last: 10d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd SYZFAIL: invalid kcov comp type (3) 1 199d 199d 0/2 auto-obsoleted due to no activity on 2024/11/04 18:01
freebsd SYZFAIL: invalid kcov comp type (2) 1 1100d 1100d 0/2 auto-closed as invalid on 2022/05/19 02:41
freebsd SYZFAIL: invalid kcov comp type 1443 1331d 1461d 0/2 auto-closed as invalid on 2021/08/31 08:25

Sample crash report:
SYZFAIL: invalid kcov comp type
type=ffffffff814e0a5e (errno 4: Interrupted system call)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: invalid kcov comp type
type=ffffffff8149cd99 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: invalid kcov comp type
type=ffffffff814e0a5e (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: invalid kcov comp type
type=ffffffff81d7dba9 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: too many calls in output
slot=64 (errno 1: Operation not permitted)
SYZFAIL: child failed
 (errno 0: No error: 0)
SYZFAIL: repeatedly failed to execute the program
proc=0 req=42 state=3 status=67 (errno 9: Bad file descriptor)


FreeBSD/amd64if_delmulti_locked: detaching ifnet instance 0xfffffe0058d86000
 (ci-freebsd-i38if_delmulti_locked: detaching ifnet instance 0xfffffe0058d86000
6-4.us-central1-if_delmulti_locked: detaching ifnet instance 0xfffffe0058d86000
b.c.syzkaller.internal) (ttyu0)

login: if_delmulti_locked: detaching ifnet instance 0xfffffe005894b800
if_delmulti_locked: detaching ifnet instance 0xfffffe005894b800
if_delmulti_locked: detaching ifnet instance 0xfffffe005894b800
if_delmulti_locked: detaching ifnet instance 0xfffffe005894b800
if_delmulti_locked: detaching ifnet instance 0xfffffe005894c000
if_delmulti_locked: detaching ifnet instance 0xfffffe005894c000
if_delmulti_locked: detaching ifnet instance 0xfffffe005894c000
set $lines = 0
Password:
Login incorrect
login: if_delmulti_locked: detaching ifnet instance 0xfffffe005894b800
if_delmulti_locked: detaching ifnet instance 0xfffffe005894b800
show registers
Password:
Login incorrect
login: ps
Feb 11 17:03:14 ci-freebsd-i386-4 login[748]: 2 LOGIN FAILURES ON ttyu0
Password:
Login incorrect
login: show malloc
Password:
Login incorrect

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/11 17:03 freebsd-src 85c333a947e9 f2baddf5 console log report ci-freebsd-i386 SYZFAIL: invalid kcov comp type
2025/02/11 17:00 freebsd-src 85c333a947e9 f2baddf5 console log report ci-freebsd-i386 SYZFAIL: invalid kcov comp type
* Struck through repros no longer work on HEAD.