[Buildroot] [PATCH 1/1] package/hostapd: fix build with CVE-2021-30004 changes
Yann E. MORIN
yann.morin.1998 at free.fr
Wed May 19 21:01:31 UTC 2021
Sergey, All,
On 2021-05-19 23:22 +0300, Sergey Matyukevich spake thusly:
> Commit d65586f45a22 ("package/hostapd: add upstream patch to fix
> CVE-2021-30004") added security patch from hostapd upstream
> without required ASN.1 helpers. Add missing headers and helpers.
>
> Fixes:
> http://autobuild.buildroot.net/results/8f56cf556efbf447633ce873a21635f5adbc3cd2/
>
> Signed-off-by: Sergey Matyukevich <geomatsi at gmail.com>
> ---
> ...03-include-stdbool-to-allow-c99-bool.patch | 23 +++++++++++++++++++
> package/hostapd/0004-add-asn1-helper.patch | 21 +++++++++++++++++
> 2 files changed, 44 insertions(+)
> create mode 100644 package/hostapd/0003-include-stdbool-to-allow-c99-bool.patch
> create mode 100644 package/hostapd/0004-add-asn1-helper.patch
>
> diff --git a/package/hostapd/0003-include-stdbool-to-allow-c99-bool.patch b/package/hostapd/0003-include-stdbool-to-allow-c99-bool.patch
> new file mode 100644
> index 0000000000..618fa8f64c
> --- /dev/null
> +++ b/package/hostapd/0003-include-stdbool-to-allow-c99-bool.patch
> @@ -0,0 +1,23 @@
> +commit 99cf89555313056d3a8fa54b21d02dc880b363e1
> +Author: Jouni Malinen <jouni at codeaurora.org>
> +Date: Mon Apr 20 20:29:31 2020 +0300
> +
> +Include stdbool.h to allow C99 bool to be used
> +
> +We have practically started requiring some C99 features, so might as
> +well finally go ahead and bring in the C99 bool as well.
> +
> +Signed-off-by: Jouni Malinen <jouni at codeaurora.org>
Please add your own SoB line here. Also, I guess this is a backport of
an upstream commit, right? If so, please state so.
> +diff --git a/src/utils/includes.h b/src/utils/includes.h
> +index 75513fc8c..741fc9c14 100644
> +--- a/src/utils/includes.h
> ++++ b/src/utils/includes.h
> +@@ -18,6 +18,7 @@
> +
> + #include <stdlib.h>
> + #include <stddef.h>
> ++#include <stdbool.h>
> + #include <stdio.h>
> + #include <stdarg.h>
> + #include <string.h>
> diff --git a/package/hostapd/0004-add-asn1-helper.patch b/package/hostapd/0004-add-asn1-helper.patch
> new file mode 100644
> index 0000000000..b97a55afef
> --- /dev/null
> +++ b/package/hostapd/0004-add-asn1-helper.patch
> @@ -0,0 +1,21 @@
> +Fix hostapd build with backported security patches.
> +
> +Add required ASN.1 helper asn1_is_null.
This patch should be git-formatted, like the others. It also needs your
SoB line, and the upstream status, if any.
Thanks!
Regards,
Yann E. MORIN.
> +diff --git a/src/tls/asn1.h b/src/tls/asn1.h
> +index 6bd7df565..77b94ef34 100644
> +--- a/src/tls/asn1.h
> ++++ b/src/tls/asn1.h
> +@@ -66,6 +66,12 @@ void asn1_oid_to_str(const struct asn1_oid *oid, char *buf, size_t len);
> + unsigned long asn1_bit_string_to_long(const u8 *buf, size_t len);
> + int asn1_oid_equal(const struct asn1_oid *a, const struct asn1_oid *b);
> +
> ++static inline bool asn1_is_null(const struct asn1_hdr *hdr)
> ++{
> ++ return hdr->class == ASN1_CLASS_UNIVERSAL &&
> ++ hdr->tag == ASN1_TAG_NULL;
> ++}
> ++
> + extern struct asn1_oid asn1_sha1_oid;
> + extern struct asn1_oid asn1_sha256_oid;
> +
> --
> 2.31.1
>
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