syzbot


SYZFAIL: child stopped (2)

Status: upstream: reported on 2025/03/10 01:34
Reported-by: syzbot+155c466753a33472083e@syzkaller.appspotmail.com
First crash: 308d, last: 2d15h
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd SYZFAIL: child stopped -1 1 486d 486d 0/2 auto-obsoleted due to no activity on 2024/12/11 21:44

Sample crash report:
SYZFAIL: child stopped
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741c00
status=127 (errno 35: Resource temporarily unavailable)


FreeBSD/amd64 (ci-freebsd-main-6.us-central1-b.c.syzkaller.internal) (ttyu0)

login: if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3800
Jan  9 11:52:21 ci-freebsd-main-6 dhclient[815]: Interface tap0 is down, dhclient exiting
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3800
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3800

FreeBSD/amd64 (ci-freebsd-main-6.us-central1-b.c.syzkaller.internal) (ttyu0)

login: if_delmulti_locked: detaching ifnet instance 0xfffffe0058741000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741000
pid 1178 (syz-executor), tap3: tun/tap protocol violation, non-controlling process closed last.
ifaddr cache = 0xfffffe006df7fa80 is deleted
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
tap3: link state changed to DOWN
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
pid 1173 (syz-executor), tap4: tun/tap protocol violation, non-controlling process closed last.
set $lines = 0
ifaddr cache = 0xfffffe006df7e780 is deleted
if_delmulti_locked: detaching ifnet instance 0xfffffe0058740c00
if_delmulti_locked: detaching ifnet instance 0xfffffe0058740c00
Expensive callout(9) function: 0xffffffff81afc400(0) 0.005497141 s
if_delmulti_locked: detaching ifnet instance 0xfffffe0058740c00
tap4: link state changed to DOWN

FreeBSD/amd64 (ci-freebsd-main-6.us-central1-b.c.syzkaller.internal) (ttyu0)

login: if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
set $maxwidth = 0
Password:if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741000
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3800
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3800
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3800
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400

Login incorrect
login: if_delmulti_locked: detaching ifnet instance 0xfffffe0058740c00
if_delmulti_locked: detaching ifnet instance 0xfffffe0058740c00
if_delmulti_locked: detaching ifnet instance 0xfffffe0058740c00
show proc
Password:
Login incorrect
login: show all locks
Password:
Login incorrect
login: show uma
Password:
Login incorrect

Crashes (134):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/09 11:52 freebsd-src a3394b6a23fb f7cfc622 console log report ci-freebsd-main SYZFAIL: child stopped
2026/01/09 03:17 freebsd-src a3394b6a23fb f7cfc622 console log report ci-freebsd-main SYZFAIL: child stopped
2026/01/09 01:40 freebsd-src a3394b6a23fb f7cfc622 console log report ci-freebsd-main SYZFAIL: child stopped
2026/01/08 13:40 freebsd-src a3394b6a23fb f7cfc622 console log report ci-freebsd-main SYZFAIL: child stopped
2026/01/07 09:46 freebsd-src a3394b6a23fb 15f6fd08 console log report ci-freebsd-main SYZFAIL: child stopped
2026/01/04 15:12 freebsd-src a3394b6a23fb e3fbc05e console log report ci-freebsd-main SYZFAIL: child stopped
2026/01/02 18:50 freebsd-src a3394b6a23fb af6b70b9 console log report ci-freebsd-main SYZFAIL: child stopped
2026/01/01 07:02 freebsd-src a3394b6a23fb 2733a373 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/31 20:56 freebsd-src a3394b6a23fb 49aa01cc console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/30 18:56 freebsd-src a3394b6a23fb d32f762a console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/28 05:48 freebsd-src a3394b6a23fb 5dc09de1 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/28 03:57 freebsd-src a3394b6a23fb 5dc09de1 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/28 01:30 freebsd-src a3394b6a23fb 5dc09de1 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/25 00:48 freebsd-src 4f184fd35d81 5dc09de1 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/24 07:59 freebsd-src 8d5a11cd0137 5dc09de1 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/21 08:39 freebsd-src dd5a48f95786 e14dbeb9 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/18 01:38 freebsd-src 41e9414e2679 a066d2bc console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/17 04:43 freebsd-src cce603cfca77 a066d2bc console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/10 08:19 freebsd-src cc1e4aae5a67 48b27acc console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/06 10:16 freebsd-src ced74610217f cee4cb10 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/05 18:20 freebsd-src 27ff0bbcfd27 cee4cb10 console log report ci-freebsd-main SYZFAIL: child stopped
2025/12/02 06:43 freebsd-src 639e65144aa7 d4611817 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/29 23:22 freebsd-src 02b72b1540bf 01c07bfe console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/29 20:21 freebsd-src 02b72b1540bf 01c07bfe console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/25 05:10 freebsd-src 4cd93df95e69 64219f15 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/24 14:47 freebsd-src 5995c036df48 bf6fe8fe console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/19 19:05 freebsd-src 9b0102837e30 82d7b894 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/17 05:19 freebsd-src 474d4707e607 f7988ea4 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/14 10:26 freebsd-src 8cd9c39195b5 07e030de console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/09 21:38 freebsd-src 8b92a6ad597e 4e1406b4 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/07 11:43 freebsd-src 36095c942031 4e1406b4 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/06 21:23 freebsd-src d7a138207fa4 4e1406b4 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/04 21:02 freebsd-src f999ffdce381 a6c9c731 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/04 01:00 freebsd-src 40d216183821 e6c64ba8 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/02 15:43 freebsd-src c3a3af134668 2c50b6a9 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/02 03:59 freebsd-src b473bb274cef 2c50b6a9 console log report ci-freebsd-main SYZFAIL: child stopped
2025/11/01 09:41 freebsd-src 259b69ad3dd6 2c50b6a9 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/30 10:55 freebsd-src 237cc7b408dd fd2207e7 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/30 05:05 freebsd-src db0d002a217b fd2207e7 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/28 03:46 freebsd-src 8a25a04058a8 fd2207e7 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/21 12:39 freebsd-src 5f7d5709e0c2 9832ed61 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/20 15:10 freebsd-src 2f461ddd784b e18aa505 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/14 13:31 freebsd-src 4fc1e7546f12 b6605ba8 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/13 12:42 freebsd-src 96e0a62abd93 b6605ba8 console log report ci-freebsd-main SYZFAIL: child stopped
2025/10/06 07:56 freebsd-src a8d774d9708c 770ff59f console log report ci-freebsd-main SYZFAIL: child stopped
2025/03/10 01:33 freebsd-src 1016b3c34435 163f510d console log report ci-freebsd-main SYZFAIL: child stopped
2025/08/20 05:27 freebsd-src c04fe26aa2f7 79512909 console log report ci-freebsd-i386 SYZFAIL: child stopped
* Struck through repros no longer work on HEAD.