Blame SOURCES/e2fsprogs-1.45.6-lsattr-check-whether-path-is-NULL-in-lsattr_dir_proc.patch
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From 18850fa92c398f4a60827dd5da020f9af0822424 Mon Sep 17 00:00:00 2001
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From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
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Date: Wed, 28 Jul 2021 09:56:48 +0800
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Subject: [PATCH 37/46] lsattr: check whether path is NULL in lsattr_dir_proc()
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Content-Type: text/plain
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In lsattr_dir_proc(), if malloc() return NULL, it will cause
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a segmentation fault problem.
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Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
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Signed-off-by: Wu Guanghao <wuguanghao3@huawei.com>
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Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Signed-off-by: Lukas Czerner <lczerner@redhat.com>
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---
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misc/lsattr.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/misc/lsattr.c b/misc/lsattr.c
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index 0d954376..55080e92 100644
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--- a/misc/lsattr.c
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+++ b/misc/lsattr.c
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@@ -144,6 +144,11 @@ static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
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int dir_len = strlen(dir_name);
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path = malloc(dir_len + strlen (de->d_name) + 2);
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+ if (!path) {
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+ fputs(_("Couldn't allocate path variable in lsattr_dir_proc\n"),
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+ stderr);
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+ return -1;
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+ }
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if (dir_len && dir_name[dir_len-1] == '/')
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sprintf (path, "%s%s", dir_name, de->d_name);
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--
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2.35.1
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