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| author | cperciva <cperciva@FreeBSD.org> | 2005-09-19 18:43:11 +0000 |
|---|---|---|
| committer | cperciva <cperciva@FreeBSD.org> | 2005-09-19 18:43:11 +0000 |
| commit | a257862d4b574dd3958622bbe9d606f532b79c6c (patch) | |
| tree | a49151162fd35076951a92a968baf9fffd4dc955 /lib | |
| parent | 55be30560c859a87d8660f3d2a7459e590252782 (diff) | |
| download | FreeBSD-src-a257862d4b574dd3958622bbe9d606f532b79c6c.zip FreeBSD-src-a257862d4b574dd3958622bbe9d606f532b79c6c.tar.gz | |
When (re)allocating space for an array of pointers to char, use
sizeof(*list), not sizeof(**list). (i.e., sizeof(pointer) rather than
sizeof(char)).
It is possible that this buffer overflow is exploitable, but it was
added after RELENG_5 forked and hasn't been MFCed, so this will not
receive an advisory.
Submitted by: Vitezslav Novy
MFC after: 1 day
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libpam/modules/pam_exec/pam_exec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libpam/modules/pam_exec/pam_exec.c b/lib/libpam/modules/pam_exec/pam_exec.c index 620dc0d..e4a35ee 100644 --- a/lib/libpam/modules/pam_exec/pam_exec.c +++ b/lib/libpam/modules/pam_exec/pam_exec.c @@ -83,7 +83,7 @@ _pam_exec(pam_handle_t *pamh __unused, int flags __unused, for (envlen = 0; envlist[envlen] != NULL; ++envlen) /* nothing */ ; nitems = sizeof(env_items) / sizeof(*env_items); - tmp = realloc(envlist, (envlen + nitems + 1) * sizeof **envlist); + tmp = realloc(envlist, (envlen + nitems + 1) * sizeof(*envlist)); if (tmp == NULL) { openpam_free_envlist(envlist); return (PAM_BUF_ERR); |
