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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Sep 2025 07:38:27.3136 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cda656a3-0472-4b1f-9168-08ddff2b2dd9 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF00001CE6.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH8PR12MB9816 Content-Type: text/plain; charset="utf-8" The cleanup loop was starting at the wrong array index, causing out-of-bounds access. Start the loop at the correct index for zero-indexed arrays to prevent accessing memory beyond the allocated array bounds. Fixes: 4981b82ba2ff ("mailbox: ZynqMP IPI mailbox controller") Signed-off-by: Harini T Reviewed-by: Peng Fan --- drivers/mailbox/zynqmp-ipi-mailbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-= ipi-mailbox.c index bdcc6937ee30..dddbef6b2cb8 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -890,7 +890,7 @@ static void zynqmp_ipi_free_mboxes(struct zynqmp_ipi_pd= ata *pdata) if (pdata->irq < MAX_SGI) xlnx_mbox_cleanup_sgi(pdata); =20 - i =3D pdata->num_mboxes; + i =3D pdata->num_mboxes - 1; for (; i >=3D 0; i--) { ipi_mbox =3D &pdata->ipi_mboxes[i]; if (device_is_registered(&ipi_mbox->dev)) --=20 2.43.0