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Crypto library fixes for v6.16-rc6

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Fix an uninitialized variable in the s390 optimized SHA-1 and SHA-2.
 
 Note that my librarification changes also fix this by greatly
 simplifying how the s390 optimized SHA code is integrated.  However, we
 need this separate fix for 6.16 and older versions.
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull crypto library fix from Eric Biggers:
 "Fix an uninitialized variable in the s390 optimized SHA-1 and SHA-2.

  Note that my librarification changes also fix this by greatly
  simplifying how the s390 optimized SHA code is integrated. However, we
  need this separate fix for 6.16 and older versions"

* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  crypto: s390/sha - Fix uninitialized variable in SHA-1 and SHA-2
This commit is contained in:
Linus Torvalds 2025-07-08 11:50:27 -07:00
commit a3b5b88ea9
2 changed files with 5 additions and 0 deletions
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2
arch/s390/crypto/sha1_s390.c
View File

@ -38,6 +38,7 @@ static int s390_sha1_init(struct shash_desc *desc)
sctx->state[4] = SHA1_H4;
sctx->count = 0;
sctx->func = CPACF_KIMD_SHA_1;
sctx->first_message_part = 0;
return 0;
}
@ -60,6 +61,7 @@ static int s390_sha1_import(struct shash_desc *desc, const void *in)
sctx->count = ictx->count;
memcpy(sctx->state, ictx->state, sizeof(ictx->state));
sctx->func = CPACF_KIMD_SHA_1;
sctx->first_message_part = 0;
return 0;
}

3
arch/s390/crypto/sha512_s390.c
View File

@ -32,6 +32,7 @@ static int sha512_init(struct shash_desc *desc)
ctx->count = 0;
ctx->sha512.count_hi = 0;
ctx->func = CPACF_KIMD_SHA_512;
ctx->first_message_part = 0;
return 0;
}
@ -57,6 +58,7 @@ static int sha512_import(struct shash_desc *desc, const void *in)
memcpy(sctx->state, ictx->state, sizeof(ictx->state));
sctx->func = CPACF_KIMD_SHA_512;
sctx->first_message_part = 0;
return 0;
}
@ -97,6 +99,7 @@ static int sha384_init(struct shash_desc *desc)
ctx->count = 0;
ctx->sha512.count_hi = 0;
ctx->func = CPACF_KIMD_SHA_512;
ctx->first_message_part = 0;
return 0;
}