CVE-2026-43410

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

firmware: stratix10-rsu: Fix NULL pointer dereference when RSU is disabled

When the Remote System Update (RSU) isn't enabled in the First Stage

Boot Loader (FSBL), the driver encounters a NULL pointer dereference when

excute svc_normal_to_secure_thread() thread, resulting in a kernel panic:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008

Mem abort info:

...

Data abort info:

...

[0000000000000008] user address but active_mm is swapper

Internal error: Oops: 0000000096000004 [#1] SMP

Modules linked in:

CPU: 0 UID: 0 PID: 79 Comm: svc_smc_hvc_thr Not tainted 6.19.0-rc8-yocto-standard+ #59 PREEMPT

Hardware name: SoCFPGA Stratix 10 SoCDK (DT)

pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)

pc : svc_normal_to_secure_thread+0x38c/0x990

lr : svc_normal_to_secure_thread+0x144/0x990

...

Call trace:

svc_normal_to_secure_thread+0x38c/0x990 (P)

kthread+0x150/0x210

ret_from_

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References