57 lines
1.4 KiB
Diff
57 lines
1.4 KiB
Diff
From b92027ac9e29659483a5e920e548fe74126f72af Mon Sep 17 00:00:00 2001
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From: cgzones <cgzones@googlemail.com>
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Date: Wed, 1 Nov 2023 22:15:40 +0100
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Subject: [PATCH] memory allocation updates (#341)
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* Check memory allocation
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Avoid later NULL dereference.
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* Check memory allocation and merge zeroing
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Avoid later NULL dereference.
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Reference:https://github.com/linux-audit/audit-userspace/commit/b92027ac9e29659483a5e920e548fe74126f72af
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Conflict:NA
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---
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auparse/interpret.c | 2 ++
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lib/libaudit.c | 7 +++++--
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2 files changed, 7 insertions(+), 2 deletions(-)
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diff --git a/auparse/interpret.c b/auparse/interpret.c
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index ecde07ae..76ca2814 100644
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--- a/auparse/interpret.c
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+++ b/auparse/interpret.c
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@@ -366,6 +366,8 @@ char *au_unescape(char *buf)
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// strlen(buf) / 2.
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olen = strlen(buf);
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str = malloc(olen+1);
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+ if (!str)
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+ return NULL;
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saved = *ptr;
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*ptr = 0;
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diff --git a/lib/libaudit.c b/lib/libaudit.c
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index 6a42871b..d90d83b8 100644
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--- a/lib/libaudit.c
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+++ b/lib/libaudit.c
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@@ -891,9 +891,12 @@ int audit_make_equivalent(int fd, const char *mount_point,
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struct {
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uint32_t sizes[2];
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unsigned char buf[];
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- } *cmd = malloc(sizeof(*cmd) + len1 + len2);
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+ } *cmd = calloc(1, sizeof(*cmd) + len1 + len2);
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- memset(cmd, 0, sizeof(*cmd) + len1 + len2);
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+ if (!cmd) {
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+ audit_msg(LOG_ERR, "Cannot allocate memory!");
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+ return -ENOMEM;
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+ }
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cmd->sizes[0] = len1;
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cmd->sizes[1] = len2;
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--
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2.33.0
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