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CVE-2022-50097
Linux kernel s3fb fbdev Out-of-Bounds Write Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: s3fb: Check the size of screen before memset_io() In the function s3fb_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: [ 54.083733] BUG: unable to handle page fault for address: ffffc90003000000 [ 54.083742] #PF: supervisor write access in kernel mode [ 54.083744] #PF: error_code(0x0002) - not-present page [ 54.083760] RIP: 0010:memset_orig+0x33/0xb0 [ 54.083782] Call Trace: [ 54.083788] s3fb_set_par+0x1ec6/0x4040 [ 54.083806] fb_set_var+0x604/0xeb0 [ 54.083836] do_fb_ioctl+0x234/0x670 Fix the this by checking the value of 'screen_size' before memset_io().

INFO

Published Date :

June 18, 2025, 11:15 a.m.

Last Modified :

June 18, 2025, 1:47 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-50097 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
A kernel out-of-bounds write vulnerability can be resolved by updating packages.
  • Update the affected kernel packages.
  • Reboot the system after the update.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-50097.

URL Resource
https://git.kernel.org/stable/c/3c35a0dc2b4e7acf24c796043b64fa3eee799239
https://git.kernel.org/stable/c/52461d387cc8c8f8dc40320caa2e9e101f73e7ba
https://git.kernel.org/stable/c/574912261528589012b61f82d368256247c3a5a8
https://git.kernel.org/stable/c/5e0da18956d38e7106664dc1d06367b22f06edd3
https://git.kernel.org/stable/c/6ba592fa014f21f35a8ee8da4ca7b95a018f13e8
https://git.kernel.org/stable/c/ce50d94afcb8690813c5522f24cd38737657db81
https://git.kernel.org/stable/c/e2d7cacc6a2a1d77e7e20a492daf458a12cf19e0
https://git.kernel.org/stable/c/eacb50f1733660911827d7c3720f4c5425d0cdda
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50097 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-50097 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-50097 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-50097 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 18, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: video: fbdev: s3fb: Check the size of screen before memset_io() In the function s3fb_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: [ 54.083733] BUG: unable to handle page fault for address: ffffc90003000000 [ 54.083742] #PF: supervisor write access in kernel mode [ 54.083744] #PF: error_code(0x0002) - not-present page [ 54.083760] RIP: 0010:memset_orig+0x33/0xb0 [ 54.083782] Call Trace: [ 54.083788] s3fb_set_par+0x1ec6/0x4040 [ 54.083806] fb_set_var+0x604/0xeb0 [ 54.083836] do_fb_ioctl+0x234/0x670 Fix the this by checking the value of 'screen_size' before memset_io().
    Added Reference https://git.kernel.org/stable/c/3c35a0dc2b4e7acf24c796043b64fa3eee799239
    Added Reference https://git.kernel.org/stable/c/52461d387cc8c8f8dc40320caa2e9e101f73e7ba
    Added Reference https://git.kernel.org/stable/c/574912261528589012b61f82d368256247c3a5a8
    Added Reference https://git.kernel.org/stable/c/5e0da18956d38e7106664dc1d06367b22f06edd3
    Added Reference https://git.kernel.org/stable/c/6ba592fa014f21f35a8ee8da4ca7b95a018f13e8
    Added Reference https://git.kernel.org/stable/c/ce50d94afcb8690813c5522f24cd38737657db81
    Added Reference https://git.kernel.org/stable/c/e2d7cacc6a2a1d77e7e20a492daf458a12cf19e0
    Added Reference https://git.kernel.org/stable/c/eacb50f1733660911827d7c3720f4c5425d0cdda
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.