Unverified Commit 13fe9fa7 authored by Riana Tauro's avatar Riana Tauro Committed by Rodrigo Vivi
Browse files

drm/xe/xe_survivability: Add index bound check 



Fix static analysis tool reported issue. Add index bound check before
accessing info array to prevent out of bound.

Fixes: f4e9fc96 ("drm/xe/xe_survivability: Redesign survivability mode")
Signed-off-by: default avatarRiana Tauro <riana.tauro@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20251219105224.871930-6-riana.tauro@intel.com


Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
parent 3d50c69c

drivers/gpu/drm/xe/xe_survivability_mode.c

+7 −3
Original line number Diff line number Diff line
@@ -251,10 +251,14 @@ static umode_t survivability_info_attrs_visible(struct kobject *kobj, struct att 
	struct xe_survivability *survivability = &xe->survivability;

	u32 *info = survivability->info;



	/* FDO mode is visible only when supported */

	if (idx >= MAX_SCRATCH_REG && survivability->version >= 2)

	/*

	 * Last index in survivability_info_attrs is fdo mode and is applicable only in

	 * version 2 of survivability mode

	 */

	if (idx == MAX_SCRATCH_REG && survivability->version >= 2)

		return 0400;

	else if (info[idx])



	if (idx < MAX_SCRATCH_REG && info[idx])

		return 0400;



	return 0;