CVE-2025-21936
Moderate
Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected()
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected() Add check for the return value of mgmt_alloc_skb() in mgmt_device_connected() to prevent null pointer dereference.
Exploit probability
0.2%
Published
April 1, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-21936
View original source
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected() Add check for the return value of mgmt_alloc_skb() in mgmt_device_connected() to prevent null pointer dereference.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/7841180342c9a0fd97d54f3e62c7369309b5cd84
- https://git.kernel.org/stable/c/7d39387886ffe220323cbed5c155233c3276926b
- https://git.kernel.org/stable/c/bdb1805c248e9694dbb3ffa8867cef2e52cf7261
- https://git.kernel.org/stable/c/d8df010f72b8a32aaea393e36121738bb53ed905
- https://git.kernel.org/stable/c/dc516e66fb28c61b248b393e2ddd63bd7f104969
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21936.json
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-21936