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Groups > linux.kernel > #1661272

[PATCH 22/23] crypto : asymmetric_keys : verify_pefile:zero memory content before freeing

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From: Loganaden Velvindron <logan@hackers.mu>

Signed-off-by: Loganaden Velvindron <logan@hackers.mu>
Signed-off-by: Yasir Auleear <yasirmx@hackers.mu>
Signed-off-by: David Howells <dhowells@redhat.com>
---

 crypto/asymmetric_keys/verify_pefile.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crypto/asymmetric_keys/verify_pefile.c b/crypto/asymmetric_keys/verify_pefile.c
index 672a94c2c3ff..d178650fd524 100644
--- a/crypto/asymmetric_keys/verify_pefile.c
+++ b/crypto/asymmetric_keys/verify_pefile.c
@@ -381,7 +381,7 @@ static int pefile_digest_pe(const void *pebuf, unsigned int pelen,
 	}
 
 error:
-	kfree(desc);
+	kzfree(desc);
 error_no_desc:
 	crypto_free_shash(tfm);
 	kleave(" = %d", ret);
@@ -450,6 +450,6 @@ int verify_pefile_signature(const void *pebuf, unsigned pelen,
 	ret = pefile_digest_pe(pebuf, pelen, &ctx);
 
 error:
-	kfree(ctx.digest);
+	kzfree(ctx.digest);
 	return ret;
 }

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[PATCH 00/23] KEYS: Fixes David Howells <dhowells@redhat.com> - 2017-06-08 15:50 +0200
  [PATCH 05/23] KEYS: Delete an error message for a failed memory  allocation in get_derived_key() David Howells <dhowells@redhat.com> - 2017-06-08 15:50 +0200
  [PATCH 18/23] KEYS: DH: forbid using digest_null as the KDF hash David Howells <dhowells@redhat.com> - 2017-06-08 15:50 +0200
  [PATCH 10/23] KEYS: encrypted: use constant-time HMAC comparison David Howells <dhowells@redhat.com> - 2017-06-08 15:50 +0200
  [PATCH 04/23] X.509: Fix error code in x509_cert_parse() David Howells <dhowells@redhat.com> - 2017-06-08 15:50 +0200
  [PATCH 07/23] KEYS: encrypted: avoid encrypting/decrypting stack  buffers David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 20/23] KEYS: DH: ensure the KDF counter is properly aligned David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 19/23] KEYS: DH: don't feed uninitialized "otherinfo" into  KDF David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 16/23] KEYS: trusted: sanitize all key material David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 21/23] KEYS: DH: add __user annotations to keyctl_kdf_params David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 13/23] KEYS: sanitize add_key() and keyctl() key payloads David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 14/23] KEYS: user_defined: sanitize key payloads David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 22/23] crypto : asymmetric_keys : verify_pefile:zero memory  content before freeing David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 23/23] KEYS: Convert KEYCTL_DH_COMPUTE to use the crypto KPP  API David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 11/23] KEYS: fix dereferencing NULL payload with nonzero  length David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 09/23] KEYS: encrypted: fix race causing incorrect HMAC  calculations David Howells <dhowells@redhat.com> - 2017-06-08 16:00 +0200
  [PATCH 08/23] KEYS: encrypted: fix buffer overread in  valid_master_desc() David Howells <dhowells@redhat.com> - 2017-06-08 16:10 +0200
  [PATCH 02/23] security: use READ_ONCE instead of deprecated  ACCESS_ONCE David Howells <dhowells@redhat.com> - 2017-06-08 16:10 +0200
  Re: [PATCH 00/23] KEYS: Fixes James Morris <jmorris@namei.org> - 2017-06-08 16:40 +0200
    Re: [PATCH 00/23] KEYS: Fixes David Howells <dhowells@redhat.com> - 2017-06-08 16:50 +0200

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