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.
Published: 2026-08-15
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 19 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787
References
Metrics threat_severity

None

threat_severity

Important


Mon, 17 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-680

Mon, 17 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-680

Mon, 17 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Sat, 15 Aug 2026 11:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-680

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values 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.
Title net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-17T05:42:31.352Z

Reserved: 2026-08-09T03:40:39.917Z

Link: CVE-2026-72298

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:22:02.437

Modified: 2026-08-17T06:18:32.700

Link: CVE-2026-72298

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-15T00:00:00Z

Links: CVE-2026-72298 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-17T16:45:04Z

Weaknesses