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CVE-2026-74393
drm/syncobj: Fix memory leak in drm_syncobj_find_fence()
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: drm/syncobj: Fix memory leak in drm_syncobj_find_fence() Commit 18226ba52159 ("drm/syncobj: reject invalid flags in drm_syncobj_find_fence") forgot to take into account the fact that drm_syncobj_find() takes a reference to syncobj and returns early without dropping the reference, leading to memory leaks. Reported by: Sam Spencer <[email protected]>

Details
INFO

Published Date :

Aug. 15, 2026, 6:22 a.m.

Last Modified :

Aug. 15, 2026, 6:22 a.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2026-74393 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.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Solution
Apply the fix for the memory leak in drm/syncobj. Update the kernel to include the fix.
  • Apply the kernel patch.
  • Update the Linux kernel.
  • Rebuild and install the kernel.
  • Reboot the system.
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-2026-74393.

URL Resource
https://git.kernel.org/stable/c/5c5994a1204743fa55e4c198ed93a6c36f21cd1f
https://git.kernel.org/stable/c/7471006cd854d159723344be809e8287a2d75502
https://git.kernel.org/stable/c/e245f3491bf30a758786a4424854f61fee472308
https://git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-74393 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-2026-74393 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-2026-74393 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-2026-74393 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

    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': '18226ba52159257d4c2f777a168cc09adb3c1ac0', 'lessThan': 'e245f3491bf30a758786a4424854f61fee472308', 'versionType': 'git'}, {'status': 'affected', 'version': '18226ba52159257d4c2f777a168cc09adb3c1ac0', 'lessThan': '7471006cd854d159723344be809e8287a2d75502', 'versionType': 'git'}, {'status': 'affected', 'version': '18226ba52159257d4c2f777a168cc09adb3c1ac0', 'lessThan': '5c5994a1204743fa55e4c198ed93a6c36f21cd1f', 'versionType': 'git'}, {'status': 'affected', 'version': '18226ba52159257d4c2f777a168cc09adb3c1ac0', 'lessThan': 'e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/drm_syncobj.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.9', 'versionType': 'semver'}, {'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/gpu/drm/drm_syncobj.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: drm/syncobj: Fix memory leak in drm_syncobj_find_fence() Commit 18226ba52159 ("drm/syncobj: reject invalid flags in drm_syncobj_find_fence") forgot to take into account the fact that drm_syncobj_find() takes a reference to syncobj and returns early without dropping the reference, leading to memory leaks. Reported by: Sam Spencer <[email protected]>
    Added Reference https://git.kernel.org/stable/c/5c5994a1204743fa55e4c198ed93a6c36f21cd1f
    Added Reference https://git.kernel.org/stable/c/7471006cd854d159723344be809e8287a2d75502
    Added Reference https://git.kernel.org/stable/c/e245f3491bf30a758786a4424854f61fee472308
    Added Reference https://git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38
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.
CVSS
Vulnerability Scoring Details
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