In the Linux kernel, the following vulnerability has been resolved: staging: nvec: fix use-after-free in nvec_rx_completed() In nvec_rx_completed(), when an incomplete RX transfer is detected, nvec_msg_free() is called to return the message back to the pool by clearing its 'used' atomic flag. Immediately after this, the code accesses nvec->rx->data[0] to check the message type. Since nvec_msg_free() marks the pool slot as available via atomic_set(), any concurrent or subsequent call to nvec_msg_alloc() could claim that same slot and overwrite its data[] array. Reading nvec->rx->data[0] after freeing the message is therefore a use-after-free. Fix this by saving the message type byte before calling nvec_msg_free(), then using the saved value for the battery quirk check.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00184.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
References
Link Providers
https://git.kernel.org/stable/c/08626fcfe12308ca3f8b22c538ba7dee0b2dce7a cve-icon cve-icon
https://git.kernel.org/stable/c/26813881181deb3a32fbb59eadb2599cbe8423f6 cve-icon cve-icon
https://git.kernel.org/stable/c/5de04caa46b635e180cecbd164e333eca535db94 cve-icon cve-icon
https://git.kernel.org/stable/c/6b2ea886ebdae44a2394029844a4e78f58e1587d cve-icon cve-icon
https://git.kernel.org/stable/c/9f7fe4165a1f1014bdadc8e744c0fd3c2d8c0b89 cve-icon cve-icon
https://git.kernel.org/stable/c/a37625c7b688fcf68a54263528eccbabfd7fa17a cve-icon cve-icon
https://git.kernel.org/stable/c/bb3d592c7d6c4ec8ac6640c690ca13298e7e8e90 cve-icon cve-icon
https://git.kernel.org/stable/c/f19a5bc059051143c489dd6f79a0f9c3bfd13aea cve-icon cve-icon
History

Sat, 15 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

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

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: staging: nvec: fix use-after-free in nvec_rx_completed() In nvec_rx_completed(), when an incomplete RX transfer is detected, nvec_msg_free() is called to return the message back to the pool by clearing its 'used' atomic flag. Immediately after this, the code accesses nvec->rx->data[0] to check the message type. Since nvec_msg_free() marks the pool slot as available via atomic_set(), any concurrent or subsequent call to nvec_msg_alloc() could claim that same slot and overwrite its data[] array. Reading nvec->rx->data[0] after freeing the message is therefore a use-after-free. Fix this by saving the message type byte before calling nvec_msg_free(), then using the saved value for the battery quirk check.
Title staging: nvec: fix use-after-free in nvec_rx_completed()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-15T05:57:24.948Z

Reserved: 2026-08-09T03:40:39.936Z

Link: CVE-2026-72489

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:22:23.190

Modified: 2026-08-15T06:22:23.190

Link: CVE-2026-72489

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-15T18:15:03Z