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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2021-08-03 21:11:03 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2021-08-03 21:11:03 +0530 |
| commit | 77a34079d8f3d63b61543bf3af93043f8674e4c4 (patch) | |
| tree | ce95a4a22aada0b845e6c196b08ccba2c70ec5a7 | |
| parent | 45caed9d67a00af917d8b5b88d4b5eb1225b7aef (diff) | |
| download | glibc-77a34079d8f3d63b61543bf3af93043f8674e4c4.tar.gz glibc-77a34079d8f3d63b61543bf3af93043f8674e4c4.tar.xz glibc-77a34079d8f3d63b61543bf3af93043f8674e4c4.zip | |
gaiconf_init: Avoid double-free in label and precedence lists
labellist and precedencelist could get freed a second time if there are allocation failures, so set them to NULL to avoid a double-free. Reviewed-by: Arjun Shankar <arjun@redhat.com>
| -rw-r--r-- | sysdeps/posix/getaddrinfo.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c index 838a68f022..43dfc6739e 100644 --- a/sysdeps/posix/getaddrinfo.c +++ b/sysdeps/posix/getaddrinfo.c @@ -2008,6 +2008,7 @@ gaiconf_init (void) l = l->next; } free_prefixlist (labellist); + labellist = NULL; /* Sort the entries so that the most specific ones are at the beginning. */ @@ -2046,6 +2047,7 @@ gaiconf_init (void) l = l->next; } free_prefixlist (precedencelist); + precedencelist = NULL; /* Sort the entries so that the most specific ones are at the beginning. */ |