0.0
NA
CVE-2026-74320
fbdev: sm501fb: Fix buffer errors in OF binding code
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: sm501fb: Fix buffer errors in OF binding code The code that gets the frame buffer mode from OF has 'use after free', 'buffer overrun' and memory leaks. info->edid_data isn't free if the probe functions fail or if pd->def_mode is set. If both the CRT and PANEL are enabled info->edid_data is used after being freed and is freed twice. The string returned by of_get_property(np, "mode", &len) is just written over either the static "640x480-16@60" or the module parameter string without any regard for the length (which is most likely longer). Use kstrump() for the OF mode and free everything before freeing 'info.
Details
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:19 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Fix use-after-free, buffer overrun, and memory leaks in OF binding code.
- Use kstrump() for OF mode.
- Free memory before freeing info.
- Ensure proper memory management in OF binding.
- Update the Linux kernel.
References
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-2026-74320.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74320 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-2026-74320
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-2026-74320 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74320 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.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '0bc3d909a49e1fd8b8c3f2160d526e672c40621d', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '47008d59c60ed896085da95f8d4dd40e1677dd3a', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'd374f76e1257ecc5d691a765c512ed2c29a44741', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'b2ff450f7f5cfc7143cab57c3ad70293ba8b822a', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'de590cdf7efec8a0b6da90ae2ab5fc5df26810b9', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '48cf0f4c6581ec90104cec9c5bf794a8bf347e30', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'd8421e09382cfe0bd2a044c8b0a822f64855dd4e', 'versionType': 'git'}], 'programFiles': ['drivers/video/fbdev/sm501fb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.39'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.39', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/video/fbdev/sm501fb.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '0bc3d909a49e1fd8b8c3f2160d526e672c40621d', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '47008d59c60ed896085da95f8d4dd40e1677dd3a', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'd374f76e1257ecc5d691a765c512ed2c29a44741', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'b2ff450f7f5cfc7143cab57c3ad70293ba8b822a', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'de590cdf7efec8a0b6da90ae2ab5fc5df26810b9', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '48cf0f4c6581ec90104cec9c5bf794a8bf347e30', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'd8421e09382cfe0bd2a044c8b0a822f64855dd4e', 'versionType': 'git'}], 'programFiles': ['drivers/video/fbdev/sm501fb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.39'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.39', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/video/fbdev/sm501fb.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '0bc3d909a49e1fd8b8c3f2160d526e672c40621d', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '47008d59c60ed896085da95f8d4dd40e1677dd3a', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'd374f76e1257ecc5d691a765c512ed2c29a44741', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'b2ff450f7f5cfc7143cab57c3ad70293ba8b822a', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'de590cdf7efec8a0b6da90ae2ab5fc5df26810b9', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': '48cf0f4c6581ec90104cec9c5bf794a8bf347e30', 'versionType': 'git'}, {'status': 'affected', 'version': '4295f9bf74a885da390abc49a3b42a011c1bb890', 'lessThan': 'd8421e09382cfe0bd2a044c8b0a822f64855dd4e', 'versionType': 'git'}], 'programFiles': ['drivers/video/fbdev/sm501fb.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2.6.39'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.39', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/video/fbdev/sm501fb.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: fbdev: sm501fb: Fix buffer errors in OF binding code The code that gets the frame buffer mode from OF has 'use after free', 'buffer overrun' and memory leaks. info->edid_data isn't free if the probe functions fail or if pd->def_mode is set. If both the CRT and PANEL are enabled info->edid_data is used after being freed and is freed twice. The string returned by of_get_property(np, "mode", &len) is just written over either the static "640x480-16@60" or the module parameter string without any regard for the length (which is most likely longer). Use kstrump() for the OF mode and free everything before freeing 'info. Added Reference https://git.kernel.org/stable/c/0bc3d909a49e1fd8b8c3f2160d526e672c40621d Added Reference https://git.kernel.org/stable/c/47008d59c60ed896085da95f8d4dd40e1677dd3a Added Reference https://git.kernel.org/stable/c/48cf0f4c6581ec90104cec9c5bf794a8bf347e30 Added Reference https://git.kernel.org/stable/c/9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31 Added Reference https://git.kernel.org/stable/c/b2ff450f7f5cfc7143cab57c3ad70293ba8b822a Added Reference https://git.kernel.org/stable/c/d374f76e1257ecc5d691a765c512ed2c29a44741 Added Reference https://git.kernel.org/stable/c/d8421e09382cfe0bd2a044c8b0a822f64855dd4e Added Reference https://git.kernel.org/stable/c/de590cdf7efec8a0b6da90ae2ab5fc5df26810b9
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.