diff options
| author | bz <bz@FreeBSD.org> | 2009-02-04 10:35:27 +0000 |
|---|---|---|
| committer | bz <bz@FreeBSD.org> | 2009-02-04 10:35:27 +0000 |
| commit | 5af7ae8eacea1f123d5f1dfce499fa0a528f2815 (patch) | |
| tree | 33afa0b9c2c375f4cb14c335514a9d43e0c00478 /sys/netinet6/nd6_rtr.c | |
| parent | b979733e865fa3b6687b599751d90a7f2b508a77 (diff) | |
| download | FreeBSD-src-5af7ae8eacea1f123d5f1dfce499fa0a528f2815.zip FreeBSD-src-5af7ae8eacea1f123d5f1dfce499fa0a528f2815.tar.gz | |
When iterating through the list trying to find a router in
defrouter_select(), NULL the cached llentry after unlocking
as we are no longer interested in it and with the second
iteration would try to unlock it again resulting in
panic: Lock (rw) lle not locked @ ...
Reported by: Mark Atkinson <m.atkinson@f5.com>
Tested by: Mark Atkinson <m.atkinson@f5.com>
PR: kern/128247 (in follow-up, unrelated to original report)
Diffstat (limited to 'sys/netinet6/nd6_rtr.c')
| -rw-r--r-- | sys/netinet6/nd6_rtr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet6/nd6_rtr.c b/sys/netinet6/nd6_rtr.c index 2f2d2ff..2bf47d2 100644 --- a/sys/netinet6/nd6_rtr.c +++ b/sys/netinet6/nd6_rtr.c @@ -651,8 +651,10 @@ defrouter_select(void) selected_dr = dr; } IF_AFDATA_UNLOCK(dr->ifp); - if (ln != NULL) + if (ln != NULL) { LLE_RUNLOCK(ln); + ln = NULL; + } if (dr->installed && installed_dr == NULL) installed_dr = dr; |
