CVE-2026-89825drm/panthor: fix firmware control interface bounds checks
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: drm/panthor: fix firmware control interface bounds checks panthor_init_cs_iface() and panthor_init_csg_iface() validate firmware control interface offsets with 32-bit arithmetic and the size of the host wrapper structures. The offsets are derived from firmware-provided strides, so the arithmetic can wrap before the bounds check, and the host wrapper size is not the size of the firmware control interface being mapped. Use 64-bit arithmetic for the computed offsets and validate against the actual firmware control interface structure sizes with subtraction-based bounds checks. Also validate that the shared section is large enough for the global control interface before using it.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 2718d91816eeed03c09c8abe872e45f59078768c builds before 33ae55809aee9b4dca1d00cdee35b527f2bf8626; 2718d91816eeed03c09c8abe872e45f59078768c builds before 80c9528661c774f899281c9a72011208ff39929e; 2718d91816eeed03c09c8abe872e45f59078768c builds before 3e5c7cddc0073eef6f9bb373189b11a969f1f6f6; 2718d91816eeed03c09c8abe872e45f59078768c builds before 6a47f9fd2d970674ed9dedc52fc7ab76fd015785 | CNA record |
References
- https://git.kernel.org/stable/c/33ae55809aee9b4dca1d00cdee35b527f2bf8626
- https://git.kernel.org/stable/c/80c9528661c774f899281c9a72011208ff39929e
- https://git.kernel.org/stable/c/3e5c7cddc0073eef6f9bb373189b11a969f1f6f6
- https://git.kernel.org/stable/c/6a47f9fd2d970674ed9dedc52fc7ab76fd015785
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.