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32 lines
1.1 KiB
32 lines
1.1 KiB
commit a5bd2e10e0c25b80286dc36068e22a4cb4893af0 |
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Author: Siddhesh Poyarekar <siddhesh@sourceware.org> |
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Date: Tue Aug 3 21:11:03 2021 +0530 |
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gaiconf_init: Avoid double-free in label and precedence lists |
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labellist and precedencelist could get freed a second time if there |
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are allocation failures, so set them to NULL to avoid a double-free. |
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Reviewed-by: Arjun Shankar <arjun@redhat.com> |
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(cherry picked from commit 77a34079d8f3d63b61543bf3af93043f8674e4c4) |
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diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c |
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index 838a68f0229b5aa8..43dfc6739e350a58 100644 |
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--- a/sysdeps/posix/getaddrinfo.c |
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+++ b/sysdeps/posix/getaddrinfo.c |
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@@ -2008,6 +2008,7 @@ gaiconf_init (void) |
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l = l->next; |
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} |
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free_prefixlist (labellist); |
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+ labellist = NULL; |
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/* Sort the entries so that the most specific ones are at |
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the beginning. */ |
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@@ -2046,6 +2047,7 @@ gaiconf_init (void) |
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l = l->next; |
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} |
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free_prefixlist (precedencelist); |
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+ precedencelist = NULL; |
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/* Sort the entries so that the most specific ones are at |
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the beginning. */
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