CVE-2022-50099

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: arkfb: Check the size of screen before memset_io() In the function arkfb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug: [ 659.399066] BUG: unable to handle page fault for address: ffffc90003000000 [ 659.399077] #PF: supervisor write access in kernel mode [ 659.399079] #PF: error_code(0x0002) - not-present page [ 659.399094] RIP: 0010:memset_orig+0x3...

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= 681e14730c73cc2c71af282c001de6bc71c22f00 < 4a20c5510aa2c031a096a58deb356e91609781c9, >= 681e14730c73cc2c71af282c001de6bc71c22f00 < 352305ea50d682b8e081d826da53caf9e744d7d0, >= 681e14730c73cc2c71af282c001de6bc71c22f00 < 53198b81930e567ad6b879812d88052a1e8ac79e, >= 681e14730c73cc2c71af282c001de6bc71c22f00 < 09e733d6ac948e6fda4b16252e44ea46f98fc8b4, >= 681e14730c73cc2c71af282c001de6bc71c22f00 < 0701df594bc1d7ae55fed407fb65dd90a93f8a9c, >= 681e14730c73cc2c71af282c001de6bc71c22f00 < 8bcb1a06e3091716b7cbebe0e91d1de9895068cd, >= 681e14730c73cc2c71af282c001de6bc71c22f00 < 2ce61c39c2a0b8ec82f48e0f7136f0dac105ae75, >= 681e14730c73cc2c71af282c001de6bc71c22f00 < 96b550971c65d54d64728d8ba973487878a06454, >= 2.6.22, >= 2.6.22 < 4.14.291, >= 4.15 < 4.19.256, >= 4.20 < 5.4.211, >= 5.5 < 5.10.137, >= 5.11 < 5.15.61, >= 5.16 < 5.18.18, >= 5.19 < 5.19.2

Fixed versions

4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

Not available