* [PATCH] HID: mcp2221: fix slab out-of-bounds in mcp2221_raw_event
@ 2025-11-03 18:25 Atharv Dubey
0 siblings, 0 replies; only message in thread
From: Atharv Dubey @ 2025-11-03 18:25 UTC (permalink / raw)
To: jikos
Cc: bentiss, linux-input, linux-kernel, Atharv Dubey,
syzbot+1018672fe70298606e5f
Fixes an out-of-bounds read triggered by malformed HID input reports.
Fixes: 3a8660878839 ("HID: mcp2221: add support for MCP2221 HID adapter")
Reported-by: syzbot+1018672fe70298606e5f@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=1018672fe70298606e5f
Signed-off-by: Atharv Dubey <atharvd440@gmail.com>
---
drivers/hid/hid-mcp2221.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hid/hid-mcp2221.c b/drivers/hid/hid-mcp2221.c
index a9fd7648515d..c97f0acbac8b 100644
--- a/drivers/hid/hid-mcp2221.c
+++ b/drivers/hid/hid-mcp2221.c
@@ -945,7 +945,7 @@ static int mcp2221_raw_event(struct hid_device *hdev,
switch (data[1]) {
case MCP2221_SUCCESS:
if ((data[mcp->gp_idx] == MCP2221_ALT_F_NOT_GPIOV) ||
- (mcp->gp_idx > 0 &&data[mcp->gp_idx - 1] == MCP2221_ALT_F_NOT_GPIOV)) {
+ (mcp->gp_idx > 0 && data[mcp->gp_idx - 1] == MCP2221_ALT_F_NOT_GPIOV)) {
mcp->status = -ENOENT;
} else {
mcp->status = 0;
--
2.43.0
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2025-11-03 18:26 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-11-03 18:25 [PATCH] HID: mcp2221: fix slab out-of-bounds in mcp2221_raw_event Atharv Dubey
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).