CVE-2026-74451

drm/panthor: validate firmware interface structure sizes

HIGH
7.8
CVSS Score
Published: August 15, 2026 at 12:26 PM UTC
Updated: August 17, 2026 at 06:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: validate firmware interface structure sizes iface_fw_to_cpu_addr() only checks that the firmware-provided MCU virtual address points inside the shared section. The returned pointer is later used as a full firmware interface structure, so accepting an address near the end of the shared section can still lead to out-of-bounds accesses. Pass the expected object size to iface_fw_to_cpu_addr() and reject ranges that do not fit entirely in the shared section.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.10 ≤ v < 6.12.1036.10 ≤ v < 6.18.446.10 ≤ v < 7.1.86.10 ≤ v < 7.22718d91816eeed03c09c8abe872e45f59078768c6.10
Vendor states this is fixed in 21c77486f5a60bb9c0433c21de62a5f25d5091f1 (fixed)
Vendor states this is fixed in b921b8613790a3f9e78ab64017fa7149ef0b750c (fixed)
Vendor states this is fixed in c835f2b0b7167584832b516c9b0a26e9180d1d0b (fixed)
Vendor states this is fixed in ca41d9f3a21586bf29df53eec05152ecf2b2f94f (fixed)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.12.103 (unaffected)
Vendor states this is fixed in 6.18.44 (unaffected)
Vendor states this is fixed in 7.1.8 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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