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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2018-04-08 11:02:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-23 13:40:15 +0200 |
| commit | e33bbe69149b802c0c77bfb822685772f85388ca (patch) | |
| tree | 2e7435326efad5203215da05726c69c5696498be /drivers/slimbus | |
| parent | 4aa403b775fc027ee86d9a090a4c5c3ee9063089 (diff) | |
| download | linux-e33bbe69149b802c0c77bfb822685772f85388ca.tar.bz2 | |
slimbus: Fix out-of-bounds access in slim_slicesize()
With gcc-4.1.2:
slimbus/messaging.c: In function ‘slim_slicesize’:
slimbus/messaging.c:186: warning: statement with no effect
Indeed, clamp() is a macro not operating in-place, but returning the
clamped value. Hence the value is not clamped at all, which may lead to
an out-of-bounds access.
Fix this by assigning the clamped value.
Fixes: afbdcc7c384b0d44 ("slimbus: Add messaging APIs to slimbus framework")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/slimbus')
| -rw-r--r-- | drivers/slimbus/messaging.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/slimbus/messaging.c b/drivers/slimbus/messaging.c index 884419c37e84..457ea1f8db30 100644 --- a/drivers/slimbus/messaging.c +++ b/drivers/slimbus/messaging.c @@ -183,7 +183,7 @@ static u16 slim_slicesize(int code) 0, 1, 2, 3, 3, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7 }; - clamp(code, 1, (int)ARRAY_SIZE(sizetocode)); + code = clamp(code, 1, (int)ARRAY_SIZE(sizetocode)); return sizetocode[code - 1]; } |