Messages in this thread Patch in this message | | | From | Alexander Stein <> | Subject | [PATCH v2] hda_hwdep: Fix possible buffer overflow | Date | Tue, 1 Nov 2011 09:40:07 +0100 |
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If a line in the firmware file is larger than the given buffer size (and so the firmware file size), size is set to a value larger than the actual buffer size. This results in an overflow in the buffer passed.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> --- Changes in v2: * Just remove the erroneous check
sound/pci/hda/hda_hwdep.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c index 72e5885..7e7d078 100644 --- a/sound/pci/hda/hda_hwdep.c +++ b/sound/pci/hda/hda_hwdep.c @@ -756,8 +756,6 @@ static int get_line_from_fw(char *buf, int size, struct firmware *fw) } if (!fw->size) return 0; - if (size < fw->size) - size = fw->size; for (len = 0; len < fw->size; len++) { if (!*p) -- 1.7.3.4
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