7.0
HIGH
CVSS 3.1
CVE-2026-53329
drm/amd/display: Use krealloc_array() in dal_vector_reserve()
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Use krealloc_array() in dal_vector_reserve() [Why & How] dal_vector_reserve() computes the allocation size as "capacity * vector->struct_size" using uint32_t arithmetic, which can silently wrap to a small value on overflow. This would cause krealloc to return a smaller buffer than expected, leading to heap overflows on subsequent vector appends. Replace krealloc() with krealloc_array() which performs an internal overflow check and returns NULL on wrap, preventing the issue. (cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)
Details
INFO
Published Date :
July 1, 2026, 2:16 p.m.
Last Modified :
July 23, 2026, 9:34 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
Prevent heap overflows by replacing krealloc with krealloc_array for safer memory allocation.
- Replace krealloc with krealloc_array.
- Ensure overflow checks are performed.
- Apply the fix to the dal_vector_reserve function.
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-2026-53329.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53329 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-2026-53329
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-2026-53329 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53329 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.
-
Initial Analysis by [email protected]
Jul. 23, 2026
Action Type Old Value New Value Added CWE CWE-674 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.176 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.143 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.210 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.13 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 5.10.260 Added Reference Type kernel.org: https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 18, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 04, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9 Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': '31180638a33acad12c863132704a76536fb66211', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'b15825deac1acff72638bbc8f05b89ceef8dfb13', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': '201151e120f0062bcda21cad5d007b82725ad23b', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'a914aa802669e073f014dae2e5708633b5cecd34', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'e09689286385a66311ac6922af95339d7a3cef8d', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'de988c7a31f0774f07894cfe4802996f318e2870', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'da48bc4461b8a5ebfb9264c9b191a701d8e99009', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/amd/display/dc/basics/vector.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/display/dc/basics/vector.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': '9540b0a4d13e4ede64ae1197d66a176d2149daa9', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': '31180638a33acad12c863132704a76536fb66211', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'b15825deac1acff72638bbc8f05b89ceef8dfb13', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': '201151e120f0062bcda21cad5d007b82725ad23b', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'a914aa802669e073f014dae2e5708633b5cecd34', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'e09689286385a66311ac6922af95339d7a3cef8d', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'de988c7a31f0774f07894cfe4802996f318e2870', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'da48bc4461b8a5ebfb9264c9b191a701d8e99009', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/amd/display/dc/basics/vector.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.260', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/display/dc/basics/vector.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 01, 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': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': '31180638a33acad12c863132704a76536fb66211', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'b15825deac1acff72638bbc8f05b89ceef8dfb13', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': '201151e120f0062bcda21cad5d007b82725ad23b', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'a914aa802669e073f014dae2e5708633b5cecd34', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'e09689286385a66311ac6922af95339d7a3cef8d', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'de988c7a31f0774f07894cfe4802996f318e2870', 'versionType': 'git'}, {'status': 'affected', 'version': '2004f45ef83f07f43f5da6ede780b08068c7583d', 'lessThan': 'da48bc4461b8a5ebfb9264c9b191a701d8e99009', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/amd/display/dc/basics/vector.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/amd/display/dc/basics/vector.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Use krealloc_array() in dal_vector_reserve() [Why & How] dal_vector_reserve() computes the allocation size as "capacity * vector->struct_size" using uint32_t arithmetic, which can silently wrap to a small value on overflow. This would cause krealloc to return a smaller buffer than expected, leading to heap overflows on subsequent vector appends. Replace krealloc() with krealloc_array() which performs an internal overflow check and returns NULL on wrap, preventing the issue. (cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707) Added Reference https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b Added Reference https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211 Added Reference https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34 Added Reference https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13 Added Reference https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009 Added Reference https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870 Added Reference https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d
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.