8.4
HIGH
CVSS 3.1
CVE-2026-72298
net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() qrtr_endpoint_post() validates an incoming packet with if (!size || len != ALIGN(size, 4) + hdrlen) goto err; where size comes from the wire. On 32-bit, size_t is 32 bits and ALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check passes and skb_put_data(skb, data + hdrlen, size) writes past the hdrlen-sized skb and oopses the kernel. 64-bit is unaffected. This is the 32-bit residual of ad9d24c9429e2 ("net: qrtr: fix OOB Read in qrtr_endpoint_post"), which fixed only the 64-bit case. Reject any size that cannot fit the buffer before the ALIGN.
Details
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.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
Fix integer overflow in qrtr_endpoint_post to prevent buffer overflows.
- Apply the kernel patch for net: qrtr: fix 32-bit integer overflow.
- Validate packet size before alignment to prevent overflows.
- Ensure size fits within buffer before processing.
- Update Linux kernel to the patched version.
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-2026-72298.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72298 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-2026-72298
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-2026-72298 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72298 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 Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '960b08dd36de1e341e3eb43d1c547513e338f4f8', 'lessThan': '3665e644ea081c4624a1637023b0de3b29f4ae04', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': 'b609f7f46916c6b05585ca82455077198a23770f', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '242408b5b763c01288adf3113cbce84378a76e1a', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': 'd0597074e99731fdad5593e4f6d056a3866f2cab', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '689b7267f8632b4661879dc323e26ebb60978afb', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '22100a8f73d4ae4f17697dae93d4e2e1d283a6ec', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '7f72c285f6d3bf63968a0344beee8ab1b370198b', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '20054869770c7df060c5ecee3e8bbf9029c47191', 'versionType': 'git'}, {'status': 'affected', 'version': 'f8111c0d7ed42ede41a3d0d393b104de0730a8a6', 'versionType': 'git'}, {'status': 'affected', 'version': '26b8d10703a9be45d6097946b2b4011f7dd2c56f', 'versionType': 'git'}, {'status': 'affected', 'version': '19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe', 'versionType': 'git'}, {'status': 'affected', 'version': '5.10.46', 'lessThan': '5.10.261', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.19.196', 'lessThan': '4.20', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.128', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.12.13', 'lessThan': '5.13', 'versionType': 'semver'}], 'programFiles': ['net/qrtr/af_qrtr.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.13', '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': ['net/qrtr/af_qrtr.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '960b08dd36de1e341e3eb43d1c547513e338f4f8', 'lessThan': '3665e644ea081c4624a1637023b0de3b29f4ae04', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': 'b609f7f46916c6b05585ca82455077198a23770f', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '242408b5b763c01288adf3113cbce84378a76e1a', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': 'd0597074e99731fdad5593e4f6d056a3866f2cab', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '689b7267f8632b4661879dc323e26ebb60978afb', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '22100a8f73d4ae4f17697dae93d4e2e1d283a6ec', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '7f72c285f6d3bf63968a0344beee8ab1b370198b', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '20054869770c7df060c5ecee3e8bbf9029c47191', 'versionType': 'git'}, {'status': 'affected', 'version': 'f8111c0d7ed42ede41a3d0d393b104de0730a8a6', 'versionType': 'git'}, {'status': 'affected', 'version': '26b8d10703a9be45d6097946b2b4011f7dd2c56f', 'versionType': 'git'}, {'status': 'affected', 'version': '19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe', 'versionType': 'git'}, {'status': 'affected', 'version': '5.10.46', 'lessThan': '5.10.261', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.19.196', 'lessThan': '4.20', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.128', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.12.13', 'lessThan': '5.13', 'versionType': 'semver'}], 'programFiles': ['net/qrtr/af_qrtr.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.13', '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': ['net/qrtr/af_qrtr.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': '960b08dd36de1e341e3eb43d1c547513e338f4f8', 'lessThan': '3665e644ea081c4624a1637023b0de3b29f4ae04', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': 'b609f7f46916c6b05585ca82455077198a23770f', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '242408b5b763c01288adf3113cbce84378a76e1a', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': 'd0597074e99731fdad5593e4f6d056a3866f2cab', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '689b7267f8632b4661879dc323e26ebb60978afb', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '22100a8f73d4ae4f17697dae93d4e2e1d283a6ec', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '7f72c285f6d3bf63968a0344beee8ab1b370198b', 'versionType': 'git'}, {'status': 'affected', 'version': 'ad9d24c9429e2159d1e279dc3a83191ccb4daf1d', 'lessThan': '20054869770c7df060c5ecee3e8bbf9029c47191', 'versionType': 'git'}, {'status': 'affected', 'version': 'f8111c0d7ed42ede41a3d0d393b104de0730a8a6', 'versionType': 'git'}, {'status': 'affected', 'version': '26b8d10703a9be45d6097946b2b4011f7dd2c56f', 'versionType': 'git'}, {'status': 'affected', 'version': '19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe', 'versionType': 'git'}, {'status': 'affected', 'version': '5.10.46', 'lessThan': '5.10.261', 'versionType': 'semver'}, {'status': 'affected', 'version': '4.19.196', 'lessThan': '4.20', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.4.128', 'lessThan': '5.5', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.12.13', 'lessThan': '5.13', 'versionType': 'semver'}], 'programFiles': ['net/qrtr/af_qrtr.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.13', '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': ['net/qrtr/af_qrtr.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() qrtr_endpoint_post() validates an incoming packet with if (!size || len != ALIGN(size, 4) + hdrlen) goto err; where size comes from the wire. On 32-bit, size_t is 32 bits and ALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check passes and skb_put_data(skb, data + hdrlen, size) writes past the hdrlen-sized skb and oopses the kernel. 64-bit is unaffected. This is the 32-bit residual of ad9d24c9429e2 ("net: qrtr: fix OOB Read in qrtr_endpoint_post"), which fixed only the 64-bit case. Reject any size that cannot fit the buffer before the ALIGN. Added Reference https://git.kernel.org/stable/c/20054869770c7df060c5ecee3e8bbf9029c47191 Added Reference https://git.kernel.org/stable/c/22100a8f73d4ae4f17697dae93d4e2e1d283a6ec Added Reference https://git.kernel.org/stable/c/242408b5b763c01288adf3113cbce84378a76e1a Added Reference https://git.kernel.org/stable/c/3665e644ea081c4624a1637023b0de3b29f4ae04 Added Reference https://git.kernel.org/stable/c/689b7267f8632b4661879dc323e26ebb60978afb Added Reference https://git.kernel.org/stable/c/7f72c285f6d3bf63968a0344beee8ab1b370198b Added Reference https://git.kernel.org/stable/c/b609f7f46916c6b05585ca82455077198a23770f Added Reference https://git.kernel.org/stable/c/d0597074e99731fdad5593e4f6d056a3866f2cab
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.