Description
In the Linux kernel, the following vulnerability has been resolved: netlabel: fix out-of-bounds memory accesses There are two array out-of-bounds memory accesses, one in cipso_v4_map_lvl_valid(), the other in netlbl_bitmap_walk(). Both errors are embarassingly simple, and the fixes are straightforward. As a FYI for anyone backporting this patch to kernels prior to v4.8, you'll want to apply the netlbl_bitmap_walk() patch to cipso_v4_bitmap_walk() as netlbl_bitmap_walk() doesn't exist before Linux v4.8.
Affected products
linux: linux kernel
References10
- git.kernel.org/stable/c/1c973f9c7cc2b3caae93192fdc8ecb3f0b4ac000 Patch
- git.kernel.org/stable/c/5578de4834fe0f2a34fedc7374be691443396d1f Patch
- git.kernel.org/stable/c/97bc3683c24999ee621d847c9348c75d2fe86272 Patch
- git.kernel.org/stable/c/c61d01faa5550e06794dcf86125ccd325bfad950 Patch
- git.kernel.org/stable/c/dc18101f95fa6e815f426316b8b9a5cee28a334e Patch
- git.kernel.org/stable/c/e3713abc4248aa6bcc11173d754c418b02a62cbb Patch
- git.kernel.org/stable/c/fbf9578919d6c91100ec63acf2cba641383f6c78 Patch
- git.kernel.org/stable/c/fcfe700acdc1c72eab231300e82b962bac2b2b2c Patch
- git.kernel.org/stable/c/1c973f9c7cc2b3caae93192fdc8ecb3f0b4ac000 Patch
- git.kernel.org/stable/c/5578de4834fe0f2a34fedc7374be691443396d1f Patch
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 1% percentile: 55 · as of 5 November 2026
- CWE
- CWE-125
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.