diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/080-wireguard-0051-crypto-chacha20poly1305-prevent-integer-overflow-on-.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/080-wireguard-0051-crypto-chacha20poly1305-prevent-integer-overflow-on-.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0051-crypto-chacha20poly1305-prevent-integer-overflow-on-.patch b/target/linux/generic/backport-5.4/080-wireguard-0051-crypto-chacha20poly1305-prevent-integer-overflow-on-.patch deleted file mode 100644 index 1ed49e5b6c..0000000000 --- a/target/linux/generic/backport-5.4/080-wireguard-0051-crypto-chacha20poly1305-prevent-integer-overflow-on-.patch +++ /dev/null @@ -1,40 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: "Jason A. Donenfeld" <Jason@zx2c4.com> -Date: Thu, 6 Feb 2020 12:42:01 +0100 -Subject: [PATCH] crypto: chacha20poly1305 - prevent integer overflow on large - input - -commit c9cc0517bba9f0213f1e55172feceb99e5512daf upstream. - -This code assigns src_len (size_t) to sl (int), which causes problems -when src_len is very large. Probably nobody in the kernel should be -passing this much data to chacha20poly1305 all in one go anyway, so I -don't think we need to change the algorithm or introduce larger types -or anything. But we should at least error out early in this case and -print a warning so that we get reports if this does happen and can look -into why anybody is possibly passing it that much data or if they're -accidently passing -1 or similar. - -Fixes: d95312a3ccc0 ("crypto: lib/chacha20poly1305 - reimplement crypt_from_sg() routine") -Cc: Ard Biesheuvel <ardb@kernel.org> -Cc: stable@vger.kernel.org # 5.5+ -Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> -Acked-by: Ard Biesheuvel <ardb@kernel.org> -Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> -Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> ---- - lib/crypto/chacha20poly1305.c | 3 +++ - 1 file changed, 3 insertions(+) - ---- a/lib/crypto/chacha20poly1305.c -+++ b/lib/crypto/chacha20poly1305.c -@@ -235,6 +235,9 @@ bool chacha20poly1305_crypt_sg_inplace(s - __le64 lens[2]; - } b __aligned(16); - -+ if (WARN_ON(src_len > INT_MAX)) -+ return false; -+ - chacha_load_key(b.k, key); - - b.iv[0] = 0; |