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| author | Takashi Iwai <tiwai@suse.de> | 2018-04-24 08:03:14 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-04-25 10:37:48 +0200 |
| commit | 10513142a7114d251670361ad40cba2c61403406 (patch) | |
| tree | 181b3bd8506bd80ba40073fbe0ddea74924a4afc /drivers/acpi/blacklist.c | |
| parent | f9d94b57e30fd1575b4935045b32d738668aa74b (diff) | |
| download | linux-10513142a7114d251670361ad40cba2c61403406.tar.bz2 | |
ALSA: hdspm: Hardening for potential Spectre v1
As recently Smatch suggested, a couple of places in HDSP MADI driver
may expand the array directly from the user-space value with
speculation:
sound/pci/rme9652/hdspm.c:5717 snd_hdspm_channel_info() warn: potential spectre issue 'hdspm->channel_map_out' (local cap)
sound/pci/rme9652/hdspm.c:5734 snd_hdspm_channel_info() warn: potential spectre issue 'hdspm->channel_map_in' (local cap)
This patch puts array_index_nospec() for hardening against them.
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 'drivers/acpi/blacklist.c')
0 files changed, 0 insertions, 0 deletions