Searched hist:"027 a9fe6" (Results 1 – 1 of 1) sorted by relevance
/openbmc/linux/sound/core/ |
H A D | info.c | 027a9fe6 Sun Oct 30 16:18:45 CDT 2016 Takashi Iwai <tiwai@suse.de> ALSA: info: Limit the proc text input size
The ALSA proc handler allows currently the write in the unlimited size until kmalloc() fails. But basically the write is supposed to be only for small inputs, mostly for one line inputs, and we don't have to handle too large sizes at all. Since the kmalloc error results in the kernel warning, it's better to limit the size beforehand.
This patch adds the limit of 16kB, which must be large enough for the currently existing code.
Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Takashi Iwai <tiwai@suse.de> 027a9fe6 Sun Oct 30 16:18:45 CDT 2016 Takashi Iwai <tiwai@suse.de> ALSA: info: Limit the proc text input size The ALSA proc handler allows currently the write in the unlimited size until kmalloc() fails. But basically the write is supposed to be only for small inputs, mostly for one line inputs, and we don't have to handle too large sizes at all. Since the kmalloc error results in the kernel warning, it's better to limit the size beforehand. This patch adds the limit of 16kB, which must be large enough for the currently existing code. Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
|