diff options
Diffstat (limited to 'gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch')
| -rw-r--r-- | gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch b/gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch new file mode 100644 index 0000000000..491a358731 --- /dev/null +++ b/gnu/packages/patches/mit-krb5-qualify-short-hostnames.patch @@ -0,0 +1,29 @@ +Fix a null pointer dereference when no DNS search path is configured. +This showed up as a segfault while running the gsasl test suite. + +Taken from upstream: +https://github.com/krb5/krb5/commit/cd82bf377e7fad2409c76bf8b241920692f34fda + +diff --git a/src/lib/krb5/os/dnsglue.c b/src/lib/krb5/os/dnsglue.c +index e35ca9d76c..0cd213fdd7 100644 +--- a/src/lib/krb5/os/dnsglue.c ++++ b/src/lib/krb5/os/dnsglue.c +@@ -91,7 +91,7 @@ static int initparse(struct krb5int_dns_state *); + #define DECLARE_HANDLE(h) struct __res_state h + #define INIT_HANDLE(h) (memset(&h, 0, sizeof(h)), res_ninit(&h) == 0) + #define SEARCH(h, n, c, t, a, l) res_nsearch(&h, n, c, t, a, l) +-#define PRIMARY_DOMAIN(h) strdup(h.dnsrch[0]) ++#define PRIMARY_DOMAIN(h) ((h.dnsrch[0] == NULL) ? NULL : strdup(h.dnsrch[0])) + #if HAVE_RES_NDESTROY + #define DESTROY_HANDLE(h) res_ndestroy(&h) + #else +@@ -104,7 +104,8 @@ static int initparse(struct krb5int_dns_state *); + #define DECLARE_HANDLE(h) + #define INIT_HANDLE(h) (res_init() == 0) + #define SEARCH(h, n, c, t, a, l) res_search(n, c, t, a, l) +-#define PRIMARY_DOMAIN(h) strdup(_res.defdname) ++#define PRIMARY_DOMAIN(h) \ ++ ((_res.defdname == NULL) ? NULL : strdup(_res.defdname)) + #define DESTROY_HANDLE(h) + + #endif |