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| author | Takashi Iwai <tiwai@suse.de> | 2018-04-24 08:04:41 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-04-25 10:37:48 +0200 |
| commit | f526afcd8f71945c23ce581d7864ace93de8a4f7 (patch) | |
| tree | 910de0bc4f2596055400f6c7e501ad28b3dd664f /mm/highmem.c | |
| parent | 10513142a7114d251670361ad40cba2c61403406 (diff) | |
| download | linux-f526afcd8f71945c23ce581d7864ace93de8a4f7.tar.gz linux-f526afcd8f71945c23ce581d7864ace93de8a4f7.tar.bz2 linux-f526afcd8f71945c23ce581d7864ace93de8a4f7.zip | |
ALSA: rme9652: Hardening for potential Spectre v1
As recently Smatch suggested, one place in RME9652 driver may expand
the array directly from the user-space value with speculation:
sound/pci/rme9652/rme9652.c:2074 snd_rme9652_channel_info() warn: potential spectre issue 'rme9652->channel_map' (local cap)
This patch puts array_index_nospec() for hardening against it.
BugLink: https://marc.info/?l=linux-kernel&m=152411496503418&w=2
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'mm/highmem.c')
0 files changed, 0 insertions, 0 deletions