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Patch "crypto: tcrypt - fix S/G table for test_aead_speed()" has been added to the 4.9-stable tree

PATCH [email protected] 1 participant 1 message Feb 8, 2018

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This is a note to let you know that I've just added the patch titled

crypto: tcrypt - fix S/G table for test_aead_speed()

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
crypto-tcrypt-fix-s-g-table-for-test_aead_speed.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 5c6ac1d4f8fbdbed65dbeb8cf149d736409d16a1 Mon Sep 17 00:00:00 2001

From: Robert Baronescu <[email protected]>
Date: Tue, 10 Oct 2017 13:21:59 +0300
Subject: crypto: tcrypt - fix S/G table for test_aead_speed()

From: Robert Baronescu <[email protected]>

commit 5c6ac1d4f8fbdbed65dbeb8cf149d736409d16a1 upstream.

In case buffer length is a multiple of PAGE_SIZE, the S/G table is incorrectly generated.
Fix this by handling buflen = k * PAGE_SIZE separately.

---
 crypto/tcrypt.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
crypto/tcrypt.c +4 -2
@@ -223,11 +223,13 @@ static void sg_init_aead(struct scatterl
 	}
 
 	sg_init_table(sg, np + 1);
-	np--;
+	if (rem)
+		np--;
 	for (k = 0; k < np; k++)
 		sg_set_buf(&sg[k + 1], xbuf[k], PAGE_SIZE);
 
-	sg_set_buf(&sg[k + 1], xbuf[k], rem);
+	if (rem)
+		sg_set_buf(&sg[k + 1], xbuf[k], rem);
 }
 
 static void test_aead_speed(const char *algo, int enc, unsigned int secs,

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/crypto-tcrypt-fix-s-g-table-for-test_aead_speed.patch