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rsync: make blkhash_free() callable with NULL.

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It is in principle possible that blkhash_free() (which obviously frees
a struct blktab, sigh) is called with NULL. This would lead to a crash.

ok claudio
This commit is contained in:
tb
2024-09-27 13:13:14 +00:00
parent 54ac47722f
commit 7eb67ff9a0
1 changed files with 3 additions and 1 deletions
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4
usr.bin/rsync/blocks.c
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@@ -1,4 +1,4 @@
/* $OpenBSD: blocks.c,v 1.26 2024/09/27 13:10:39 tb Exp $ */
/* $OpenBSD: blocks.c,v 1.27 2024/09/27 13:13:14 tb Exp $ */
/*
* Copyright (c) 2019 Kristaps Dzonsons <kristaps@bsd.lv>
*
@@ -125,6 +125,8 @@ blkhash_set(struct blktab *p, const struct blkset *bset)
void
blkhash_free(struct blktab *p)
{
if (p == NULL)
return;
free(p->q);
free(p->blks);
free(p);