From: Blaise Boscaccy <bboscaccy@linux.microsoft.com>
To: "Jonathan Corbet" <corbet@lwn.net>,
"Shuah Khan" <skhan@linuxfoundation.org>,
"Paul Moore" <paul@paul-moore.com>,
"James Morris" <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
"Eric Biggers" <ebiggers@kernel.org>, "Fan Wu" <wufan@kernel.org>,
James.Bottomley@HansenPartnership.com,
"Blaise Boscaccy" <bboscaccy@linux.microsoft.com>,
linux-security-module@vger.kernel.org
Subject: [PATCH 05/11] hornet: gen_sig: fix off-by-one check for used maps
Date: Wed, 27 May 2026 20:08:14 -0700 [thread overview]
Message-ID: <20260528030915.2654994-6-bboscaccy@linux.microsoft.com> (raw)
In-Reply-To: <20260528030915.2654994-1-bboscaccy@linux.microsoft.com>
A logic bug limited the maximum number of used maps to
MAX_USED_MAPS-1.
Signed-off-by: Blaise Boscaccy <bboscaccy@linux.microsoft.com>
---
scripts/hornet/gen_sig.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/scripts/hornet/gen_sig.c b/scripts/hornet/gen_sig.c
index b4f983ab24bcd..4e8caad22f381 100644
--- a/scripts/hornet/gen_sig.c
+++ b/scripts/hornet/gen_sig.c
@@ -317,11 +317,11 @@ int main(int argc, char **argv)
data_path = optarg;
break;
case 'A':
- hashes[hash_count].file = optarg;
- if (++hash_count >= MAX_HASHES) {
+ if (hash_count >= MAX_HASHES) {
usage(argv[0]);
return EXIT_FAILURE;
}
+ hashes[hash_count++].file = optarg;
break;
default:
usage(argv[0]);
--
2.53.0
next prev parent reply other threads:[~2026-05-28 3:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-28 3:08 [PATCH 00/11] hornet: security, tooling and selftest fixes Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 01/11] hornet: fix TOCTOU in signed program verification Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 02/11] hornet: invert map set check logic Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 03/11] hornet: fix off-by-one bug in max used maps check Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 04/11] selftests: hornet: handle cross compilation and test skipping Blaise Boscaccy
2026-05-28 3:08 ` Blaise Boscaccy [this message]
2026-05-28 3:08 ` [PATCH 06/11] hornet: gen_sig: fix error string allocations Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 07/11] hornet: gen_sig: check for bad allocations Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 08/11] hornet: gen_sig: fix missing command line switches Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 09/11] hornet: scripts: set a non-zero error code for usage Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 10/11] hornet: scripts: harden scripts to handle trailing whitespace Blaise Boscaccy
2026-05-28 3:08 ` [PATCH 11/11] hornet: scripts: Improve argument handling and error messages Blaise Boscaccy
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