Patch "crypto: chacha20-ssse3 - Align stack pointer to 64 bytes" has been added to the 4.3-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
crypto: chacha20-ssse3 - Align stack pointer to 64 bytes
to the 4.3-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-chacha20-ssse3-align-stack-pointer-to-64-bytes.patch
and it can be found in the queue-4.3 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
cbe09bd51bf23b42c3a94c5fb6815e1397c5fc3fMon Sep 17 00:00:00 2001
From: Eli Cooper <[email protected]>
Date: Fri, 22 Jan 2016 00:24:08 +0800
Subject: crypto: chacha20-ssse3 - Align stack pointer to 64 bytes
From: Eli Cooper <[email protected]>
commit cbe09bd51bf23b42c3a94c5fb6815e1397c5fc3f upstream.
This aligns the stack pointer in chacha20_4block_xor_ssse3 to 64 bytes. Fixes general protection faults and potential kernel panics.
--- arch/x86/crypto/chacha20-ssse3-x86_64.S | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
arch/x86/crypto/chacha20-ssse3-x86_64.S +4 -2
@@ -157,7 +157,9 @@ ENTRY(chacha20_4block_xor_ssse3) # done with the slightly better performing SSSE3 byte shuffling, # 7/12-bit word rotation uses traditional shift+OR. - sub $0x40,%rsp + mov %rsp,%r11 + sub $0x80,%rsp + and $~63,%rsp # x0..15[0-3] = s0..3[0..3] movq 0x00(%rdi),%xmm1
@@ -620,6 +622,6 @@ ENTRY(chacha20_4block_xor_ssse3) pxor %xmm1,%xmm15 movdqu %xmm15,0xf0(%rsi) - add $0x40,%rsp + mov %r11,%rsp ret ENDPROC(chacha20_4block_xor_ssse3)
Patches currently in stable-queue which might be from [email protected] are
queue-4.3/crypto-chacha20-ssse3-align-stack-pointer-to-64-bytes.patch