{"id":"CVE-2026-89825","published":"2026-09-16T11:16:49.127","lastModified":"2026-09-16T15:18:11.433","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: fix firmware control interface bounds checks\n\npanthor_init_cs_iface() and panthor_init_csg_iface() validate firmware\ncontrol interface offsets with 32-bit arithmetic and the size of the host\nwrapper structures. The offsets are derived from firmware-provided strides,\nso the arithmetic can wrap before the bounds check, and the host wrapper\nsize is not the size of the firmware control interface being mapped.\n\nUse 64-bit arithmetic for the computed offsets and validate against the\nactual firmware control interface structure sizes with subtraction-based\nbounds checks. Also validate that the shared section is large enough for\nthe global control interface before using it.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/33ae55809aee9b4dca1d00cdee35b527f2bf8626","tags":[]},{"url":"https://git.kernel.org/stable/c/3e5c7cddc0073eef6f9bb373189b11a969f1f6f6","tags":[]},{"url":"https://git.kernel.org/stable/c/6a47f9fd2d970674ed9dedc52fc7ab76fd015785","tags":[]},{"url":"https://git.kernel.org/stable/c/80c9528661c774f899281c9a72011208ff39929e","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"This vulnerability in the Linux kernel's DRM/Panthor driver allows an attacker to perform out-of-bounds memory accesses, potentially leading to privilege escalation or system crashes.","exploitability":"Exploitation requires access to the firmware control interface and knowledge of the affected driver version. It is moderately difficult to exploit.","blast_radius":"If exploited, the vulnerability could allow an attacker to gain elevated privileges or cause a system crash, impacting the integrity and availability of the system.","remediation":"Upgrade to the fixed version 5.19.40 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["privilege-escalation","memory-access","kernel"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-08T08:43:22.538Z"}}