syzbot


SYZFAIL: SIGSEGV

Status: upstream: reported on 2025/03/24 10:59
Reported-by: syzbot+3412e5ba8717deb6fdac@syzkaller.appspotmail.com
First crash: 299d, last: 23h06m

Sample crash report:
SYZFAIL: SIGSEGV
pc-offset:0xffffffff217d4ef1 pc:0xdeadbeef addr:0x0 code=65537 (errno 9: Bad file descriptor)
Connection to 10.128.1.100 closed by remote host.
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
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 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400

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

login: pid 760 (csh), jid 0, uid 0: exited on signal 11 (core dumped)
pid 746 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 337 (dhclient), jid 0, uid 0: exited on signal 11 (core dumped)
pid 875 (rtsol), jid 0, uid 0: exited on signal 11 (core dumped)
pid 744 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 778 (sh), jid 0, uid 0: exited on signal 11 (core dumped)
set $lines = 0
pid 742 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 873 (rtsol), jid 0, uid 0: exited on signal 11 (core dumped)
Password:pid 740 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
pid 735 (sh), jid 0, uid 0: exited on signal 11 (core dumped)
pid 874 (rtsol), jid 0, uid 0: exited on signal 11 (core dumped)
pid 741 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 769 (sh), jid 0, uid 0: exited on signal 11 (core dumped)
pid 739 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 745 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 743 (getty), jid 0, uid 0: exited on signal 11 (core dumped)

Login incorrect
login: if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
show registers
Password:
Login incorrect
login: ps
Password:
Login incorrect
login: show malloc
Password:
Login incorrect
show all tcpcbs/bl
login: Password:

Crashes (107):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/17 11:22 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/15 16:56 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/15 08:38 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/14 00:43 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/13 20:48 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/13 05:34 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/11 11:13 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/11 10:15 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/10 08:02 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/10 06:28 freebsd-src a3394b6a23fb 56f88057 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/09 09:02 freebsd-src a3394b6a23fb f7cfc622 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/09 00:28 freebsd-src a3394b6a23fb f7cfc622 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/07 07:57 freebsd-src a3394b6a23fb 15f6fd08 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/05 19:14 freebsd-src a3394b6a23fb 917fe602 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/03 07:51 freebsd-src a3394b6a23fb e3fbc05e console log report ci-freebsd-main SYZFAIL: SIGSEGV
2026/01/01 10:40 freebsd-src a3394b6a23fb 2733a373 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/30 00:51 freebsd-src a3394b6a23fb 17e6c961 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/29 19:19 freebsd-src a3394b6a23fb a938fefb console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/27 13:58 freebsd-src a3394b6a23fb 5dc09de1 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/20 15:05 freebsd-src 7f39d05b67ae e14dbeb9 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/17 18:07 freebsd-src f94bfc469df9 a066d2bc console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/12 18:55 freebsd-src ef2d586d7efb a066d2bc console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/09 09:21 freebsd-src cff67bc43df1 fc20f974 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/07 21:39 freebsd-src 3f10e5985044 cee4cb10 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/12/07 04:29 freebsd-src 6f4debc004c3 cee4cb10 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/11/24 01:57 freebsd-src 5cc34a83e1cc 4fb8ef37 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/11/14 21:09 freebsd-src 8cd9c39195b5 f7988ea4 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/11/10 20:24 freebsd-src ec0cd287f55f 4e1406b4 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/11/09 16:34 freebsd-src 8b92a6ad597e 4e1406b4 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/11/06 07:37 freebsd-src 1ca7542a1b31 a6c9c731 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/30 01:48 freebsd-src db0d002a217b fd2207e7 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/28 22:29 freebsd-src 22cff1f3e9d8 fd2207e7 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/27 20:36 freebsd-src 1d100747d747 fd2207e7 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/26 02:03 freebsd-src e6e941e659ab c0460fcd console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/23 21:51 freebsd-src 93b02f69a6f6 c0460fcd console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/20 07:59 freebsd-src 2f461ddd784b e18aa505 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/15 09:35 freebsd-src ead721935251 b6605ba8 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/11 09:31 freebsd-src 2b0ffc0ee48c ff1712fe console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/10 19:30 freebsd-src 2170400142b9 ff1712fe console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/07 12:20 freebsd-src a8d774d9708c 8ef35d49 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/07 10:44 freebsd-src a8d774d9708c 8ef35d49 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/10/02 13:32 freebsd-src 213170eb956f 770ff59f console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/09/21 06:27 freebsd-src 4c3a868d13c0 67c37560 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/09/21 00:24 freebsd-src 31ec8b6407fd 67c37560 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/09/20 06:57 freebsd-src e043af9ca596 67c37560 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/09/18 15:53 freebsd-src 7c0bc6c703ee e2beed91 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/09/16 19:13 freebsd-src 99213b3c352c e2beed91 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/09/15 05:24 freebsd-src 52096ba6b769 e2beed91 console log report ci-freebsd-main SYZFAIL: SIGSEGV
2025/03/24 10:59 freebsd-src 574816356834 875573af console log report ci-freebsd-main SYZFAIL: SIGSEGV
* Struck through repros no longer work on HEAD.