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drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN
Lyude Paul authored 
commit 44035ec2

 upstream.

There's been a very long running bug that seems to have been neglected for
a while, where amdgpu consistently triggers a KASAN error at start:

  BUG: KASAN: global-out-of-bounds in read_indirect_azalia_reg+0x1d4/0x2a0 [amdgpu]
  Read of size 4 at addr ffffffffc2274b28 by task modprobe/1889

After digging through amd's rather creative method for accessing registers,
I eventually discovered the problem likely has to do with the fact that on
my dce120 GPU there are supposedly 7 sets of audio registers. But we only
define a register mapping for 6 sets.

So, fix this and fix the KASAN warning finally.
Signed-off-by: default avatarLyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
d0075f49
Name Last commit Last update
Documentation docs: update mediator contact information in CoC doc
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arch nios2: add FORCE for vmlinuz.gz
block block: sed-opal: kmalloc the cmd/resp buffers
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist
crypto crypto: drbg - make reseeding from get_random_bytes() synchronous
drivers drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN
firmware Fix built-in early-load Intel microcode alignment
fs btrfs: free btrfs_path before copying subvol info to userspace
include audit: fix undefined behavior in bit shift for AUDIT_BIT
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