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| author | Xi Wang <[email protected]> | 2012-02-14 10:18:48 +0000 |
|---|---|---|
| committer | Takashi Iwai <[email protected]> | 2012-02-15 13:58:15 +0000 |
| commit | 8866f405efd4171f9d9c91901d2dd02f01bacb60 (patch) | |
| tree | 414b07ed6d979f9aad804dc16b4f280247741eaf /lib/string_helpers.c | |
| parent | ALSA: intel8x0: Fix default inaudible sound on Gateway M520 (diff) | |
| download | kernel-8866f405efd4171f9d9c91901d2dd02f01bacb60.tar.gz kernel-8866f405efd4171f9d9c91901d2dd02f01bacb60.zip | |
ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk()
A malicious USB device could feed in a large nr_rates value. This would
cause the subsequent call to kmemdup() to allocate a smaller buffer than
expected, leading to out-of-bounds access.
This patch validates the nr_rates value and reuses the limit introduced
in commit 4fa0e81b ("ALSA: usb-audio: fix possible hang and overflow
in parse_uac2_sample_rate_range()").
Signed-off-by: Xi Wang <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions