From f162d344c03bc9db125084a8f05c9cd7c0c1f4de Mon Sep 17 00:00:00 2001 From: Matthias Andree Date: Sun, 29 Dec 2024 22:02:21 +0100 Subject: [PATCH] cache: Fix potential NULL deref in arcane situations. Reference:https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=f162d344c03bc9db125084a8f05c9cd7c0c1f4de Conflict:NA --- src/cache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/cache.c b/src/cache.c index 4395fee..f2aecca 100644 --- a/src/cache.c +++ b/src/cache.c @@ -479,7 +479,7 @@ static struct crec *cache_scan_free(char *name, union all_addr *addr, unsigned s if ((crecp->flags & F_FORWARD) && hostname_isequal(cache_get_name(crecp), name)) { int rrmatch = 0; - if (crecp->flags & flags & F_RR) + if (addr && (crecp->flags & flags & F_RR)) { unsigned short rrc = (crecp->flags & F_KEYTAG) ? crecp->addr.rrblock.rrtype : crecp->addr.rrdata.rrtype; unsigned short rra = (flags & F_KEYTAG) ? addr->rrblock.rrtype : addr->rrdata.rrtype; -- 2.33.0