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From: Florian Weimer <fw@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] resolv: free only initialized items from gai pool Date: Mon, 20 Nov 2023 14:03:42 +0000 (GMT) [thread overview] Message-ID: <20231120140342.4930F3858C2D@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f2aaf18af50109b0982723bdf4e0a3bca2f8d3d6 commit f2aaf18af50109b0982723bdf4e0a3bca2f8d3d6 Author: Jan Palus <jpalus@fastmail.com> Date: Mon Oct 30 19:57:01 2023 +0100 resolv: free only initialized items from gai pool pool_max_size denotes total allocated rows in pool but possibly not yet initialized. it's pool_size that represents number of actually occupied rows hence use it when freeing pool to avoid freeing random addresses. Signed-off-by: Jan Palus <jpalus@fastmail.com> Reviewed-by: Florian Weimer <fweimer@redhat.com> Diff: --- resolv/gai_misc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/resolv/gai_misc.c b/resolv/gai_misc.c index d02bd7ed23..266ed6931c 100644 --- a/resolv/gai_misc.c +++ b/resolv/gai_misc.c @@ -1,4 +1,5 @@ /* Copyright (C) 2001-2023 Free Software Foundation, Inc. + Copyright The GNU Toolchain Authors. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -442,7 +443,7 @@ __gai_freemem (void) { size_t row; - for (row = 0; row < pool_max_size; ++row) + for (row = 0; row < pool_size; ++row) free (pool[row]); free (pool);
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