Files
linux-stable-mirror/crypto
Lukas WunnerandHerbert Xu 3b626ba431 X.509: Fix validation of ASN.1 certificate header
x509_load_certificate_list() seeks to enforce that a certificate starts
with 0x30 0x82 (ASN.1 SEQUENCE tag followed by a length of more than 256
and less than 65535 bytes).

But it only enforces that *either* of those two byte values are present,
instead of checking for the *conjunction* of the two values.  Fix it.

Fixes: 631cc66eb9 ("MODSIGN: Provide module signing public keys to the kernel")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://lore.kernel.org/r/20260508033917.B5873C2BCB0@smtp.kernel.org/
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org # v3.7+
Reviewed-by: Ignat Korchagin <ignat@linux.win>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-05-22 20:25:29 +08:00
..
2026-04-02 23:36:21 -07:00
2025-05-19 13:48:20 +08:00
2026-01-05 16:43:36 +01:00
2026-01-21 22:32:50 +00:00
2026-01-05 16:43:36 +01:00