What’s Vulnerable › Vulnerabilities

CVE-2026-98514: drm/nouveau: Fix gem reference leak in validate_init()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: Fix gem reference leak in validate_init() On the ttm_bo_reserve() failure and "vma not found" error paths, the loop breaks without adding the looked-up object to any validate list, so the reference taken by drm_gem_object_lookup() is never released; validate_fini() only walks the spliced lists. Drop the reference before breaking out on both paths.

Affected products

• Linux kernel: from 4.17.12 before 4.18; 4.18 — fixed in 4.18, 7.3

How to fix

Upgrade to a fixed version: Linux kernel 4.18, 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/030e93fc91d55d9487b3b85fc0712bb795d77834
• https://git.kernel.org/stable/c/3c80e069470cf73c357c9edb5ec5fba20e6f6a98
• https://git.kernel.org/stable/c/5ea72f7b7139b123713a7983448f910bc4514d9e
• https://git.kernel.org/stable/c/74485cdc343060fce08f8f3990da524d783e43a7
• https://git.kernel.org/stable/c/8281930fc194ad448aaa5de8dd47fb6fb1cba327
• https://git.kernel.org/stable/c/957619120c26d6727efd18504e6b488673d3900a
• https://git.kernel.org/stable/c/9e13c398a23445baf38f0a59033dd9872a2bfe20
• https://git.kernel.org/stable/c/af2f48c12365866abb327d75c21a13bbde84719c

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