From 7b7d6572145c1dab2dd9bfb550b188e5f0ff3c3f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 15 May 2026 10:55:58 +0200 Subject: [PATCH] ALSA: asihpi: Fix potential OOB array access at reading cache find_control() to retrieve a cached info accesses the array with the given index blindly, which may lead to an OOB array access. Add a sanity check for avoiding it. Link: https://sashiko.dev/#/patchset/20260511230121.28606-1-rosenp%40gmail.com Cc: Link: https://patch.msgid.link/20260515085606.242284-1-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/pci/asihpi/hpicmn.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c index d846777e7462..19f0da2e6501 100644 --- a/sound/pci/asihpi/hpicmn.c +++ b/sound/pci/asihpi/hpicmn.c @@ -276,6 +276,12 @@ static short find_control(u16 control_index, return 0; } + if (control_index >= p_cache->control_count) { + HPI_DEBUG_LOG(VERBOSE, "control_index out of bounce %d\n", + control_index); + return 0; + } + *pI = p_cache->p_info[control_index]; if (!*pI) { HPI_DEBUG_LOG(VERBOSE, "Uncached Control %d\n",