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| author | Nicolò Mazzucato <nicomazz97@gmail.com> | 2020-04-22 21:01:53 +0100 |
|---|---|---|
| committer | John Levon <john.levon@joyent.com> | 2020-06-03 03:01:46 -0700 |
| commit | d15d17d4231f87f1571fa6d585377206f360f667 (patch) | |
| tree | 1afdee7918aa8b3ff53596a1e16803e27a8a2b07 /usr/src/common/ctf/ctf_lookup.c | |
| parent | 8fff788790878e3c95666decd46960ecc74c1c69 (diff) | |
| download | illumos-joyent-d15d17d4231f87f1571fa6d585377206f360f667.tar.gz | |
12786 fix CTF pointer overrun
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Robert Mustacchi <rm@fingolfin.org>
Approved by: Dan McDonald <danmcd@joyent.com>
Diffstat (limited to 'usr/src/common/ctf/ctf_lookup.c')
| -rw-r--r-- | usr/src/common/ctf/ctf_lookup.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/usr/src/common/ctf/ctf_lookup.c b/usr/src/common/ctf/ctf_lookup.c index 05aa54d6cb..b45b7ad793 100644 --- a/usr/src/common/ctf/ctf_lookup.c +++ b/usr/src/common/ctf/ctf_lookup.c @@ -133,7 +133,8 @@ ctf_lookup_by_name(ctf_file_t *fp, const char *name) for (lp = fp->ctf_lookups; lp->ctl_prefix != NULL; lp++) { if (lp->ctl_prefix[0] == '\0' || - strncmp(p, lp->ctl_prefix, (size_t)(q - p)) == 0) { + ((size_t)(q - p) >= lp->ctl_len && strncmp(p, + lp->ctl_prefix, (size_t)(q - p)) == 0)) { for (p += lp->ctl_len; isspace(*p); p++) continue; /* skip prefix and next ws */ |