cbcvebase.
CVE-2022-50101
published 2025-06-18

CVE-2022-50101: In the Linux kernel, the following vulnerability has been resolved: video: fbdev: vt8623fb: Check the size of screen before memset_io() In the function…

PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.22%
12.6th percentile
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: vt8623fb: Check the size of screen before memset_io() In the function vt8623fb_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: [ 583.339036] BUG: unable to handle page fault for address: ffffc90005000000 [ 583.339049] #PF: supervisor write access in kernel mode [ 583.339052] #PF: error_code(0x0002) - not-present page [ 583.339074] RIP: 0010:memset_orig+0x33/0xb0 [ 583.339110] Call Trace: [ 583.339118] vt8623fb_set_par+0x11cd/0x21e0 [ 583.339146] fb_set_var+0x604/0xeb0 [ 583.339181] do_fb_ioctl+0x234/0x670 [ 583.339209] fb_ioctl+0xdd/0x130 Fix the this by checking the value of 'screen_size' before memset_io().

Affected

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.0.2-1 (bookworm)linux 6.0.2-1 (bookworm)
linuxlinux——
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < 73280a184aa2e1a625ce54ce761042955cc79cd073280a184aa2e1a625ce54ce761042955cc79cd0
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < 52ad9bfeb8a0e62de30de6d39e8a49a72dd7815052ad9bfeb8a0e62de30de6d39e8a49a72dd78150
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < d71528ccdc7ae8d7500d414091d27805c51407a2d71528ccdc7ae8d7500d414091d27805c51407a2
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < bd8269e57621e5b38cc0b4bd2fa02e85c9f2a441bd8269e57621e5b38cc0b4bd2fa02e85c9f2a441
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < 4a3cef1eaced13ba9b55381d46bfad937a3dac2c4a3cef1eaced13ba9b55381d46bfad937a3dac2c
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < b17caec5127bba6f90af92bcc85871df54548ac0b17caec5127bba6f90af92bcc85871df54548ac0
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < c7a3f41e4b133d4dd25bc996b69039b19a34d69dc7a3f41e4b133d4dd25bc996b69039b19a34d69d
linuxlinux>= 558b7bd86c32978648cda5deb5c758d77ef0c165 < ec0754c60217248fa77cc9005d66b2b55200ac06ec0754c60217248fa77cc9005d66b2b55200ac06
linuxlinux_kernel>= 0 < 5.10.140-15.10.140-1
linuxlinux_kernel>= 0 < 6.0.2-16.0.2-1
linuxlinux_kernel>= 0 < 6.0.2-16.0.2-1
linuxlinux_kernel>= 0 < 6.0.2-16.0.2-1
linuxlinux_kernel>= 2.6.22 < 4.14.2914.14.291
linuxlinux_kernel>= 4.15 < 4.19.2564.19.256
linuxlinux_kernel>= 4.20 < 5.4.2115.4.211
linuxlinux_kernel>= 5.11 < 5.15.615.15.61
linuxlinux_kernel>= 5.16 < 5.18.185.18.18
linuxlinux_kernel>= 5.19 < 5.19.25.19.2
linuxlinux_kernel>= 5.5 < 5.10.1375.10.137

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.