The patch titled
random: fix output buffer folding
has been added to the -mm tree. Its filename is
random-fix-output-buffer-folding.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: random: fix output buffer folding
From: Matt Mackall <mpm@xxxxxxxxxxx>
(As reported by linux@xxxxxxxxxxx)
Folding is done to minimize the theoretical possibility of systematic
weakness in the particular bits of the SHA1 hash output. The result of
this bug is that 16 out of 80 bits are un-folded. Without a major new
vulnerability being found in SHA1, this is harmless, but still worth
fixing.
Signed-off-by: Matt Mackall <mpm@xxxxxxxxxxx>
Cc: <linux@xxxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/random.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/char/random.c~random-fix-output-buffer-folding drivers/char/random.c
--- a/drivers/char/random.c~random-fix-output-buffer-folding
+++ a/drivers/char/random.c
@@ -794,7 +794,7 @@ static void extract_buf(struct entropy_s
buf[0] ^= buf[3];
buf[1] ^= buf[4];
- buf[0] ^= rol32(buf[3], 16);
+ buf[2] ^= rol32(buf[2], 16);
memcpy(out, buf, EXTRACT_SIZE);
memset(buf, 0, sizeof(buf));
}
_
Patches currently in -mm which might be from mpm@xxxxxxxxxxx are
random-fix-output-buffer-folding.patch
slob-rework-freelist-handling.patch
slob-remove-bigblock-tracking.patch
slob-improved-alignment-handling.patch
maps2-uninline-some-functions-in-the-page-walker.patch
maps2-eliminate-the-pmd_walker-struct-in-the-page-walker.patch
maps2-remove-vma-from-args-in-the-page-walker.patch
maps2-propagate-errors-from-callback-in-page-walker.patch
maps2-add-callbacks-for-each-level-to-page-walker.patch
maps2-move-the-page-walker-code-to-lib.patch
maps2-simplify-interdependence-of-proc-pid-maps-and-smaps.patch
maps2-move-clear_refs-code-to-task_mmuc.patch
maps2-regroup-task_mmu-by-interface.patch
maps2-make-proc-pid-smaps-optional-under-config_embedded.patch
maps2-make-proc-pid-clear_refs-option-under-config_embedded.patch
maps2-add-proc-pid-pagemap-interface.patch
maps2-add-proc-kpagemap-interface.patch
-
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