* + lib-memscan-fixlet.patch added to -mm tree
@ 2021-06-07 23:07 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2021-06-07 23:07 UTC (permalink / raw)
To: adobriyan, mm-commits
The patch titled
Subject: lib: memscan() fixlet
has been added to the -mm tree. Its filename is
lib-memscan-fixlet.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/lib-memscan-fixlet.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/lib-memscan-fixlet.patch
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------------------------------------------------------
From: Alexey Dobriyan <adobriyan@gmail.com>
Subject: lib: memscan() fixlet
Generic version doesn't trucate second argument to char.
Older brother memchr() does as do s390, sparc and i386 assembly versions.
Fortunately, no code passes c >= 256.
Link: https://lkml.kernel.org/r/YLv4cCf0t5UPdyK+@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
lib/string.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/string.c~lib-memscan-fixlet
+++ a/lib/string.c
@@ -977,7 +977,7 @@ void *memscan(void *addr, int c, size_t
unsigned char *p = addr;
while (size) {
- if (*p == c)
+ if (*p == (unsigned char)c)
return (void *)p;
p++;
size--;
_
Patches currently in -mm which might be from adobriyan@gmail.com are
lib-memscan-fixlet.patch
exec-remove-checks-in-__register_bimfmt.patch
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2021-06-07 23:07 + lib-memscan-fixlet.patch added to -mm tree akpm
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