Bluetooth: btrtl: Prevent potential NULL dereference
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: Prevent potential NULL dereference The btrtl_initialize() function checks that rtl_load_file() either had an error or it loaded a zero length file. However, if it loaded a zero length file then the error code is not set correctly. It results in an error pointer vs NULL bug, followed by a NULL pointer dereference. This was detected by Smatch: drivers/bluetooth/btrtl.c:592 btrtl_initialize() warn: passing zero to 'ERR_PTR'
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: Prevent potential NULL dereference The btrtl_initialize() function checks that rtl_load_file() either had an error or it loaded a zero length file. However, if it loaded a zero length file then the error code is not set correctly. It results in an error pointer vs NULL bug, followed by a NULL pointer dereference. This was detected by Smatch: drivers/bluetooth/btrtl.c:592 btrtl_initialize() warn: passing zero to 'ERR_PTR'
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2d7c60c2a38b4b461fa960ad0995136a6bfe0756
- https://git.kernel.org/stable/c/324dddea321078a6eeb535c2bff5257be74c9799
- https://git.kernel.org/stable/c/3db6605043b50c8bb768547b23e0222f67ceef3e
- https://git.kernel.org/stable/c/53ceef799dcfc22c734d600811bfc9dd32eaea0a
- https://git.kernel.org/stable/c/73dc99c0ea94abd22379b2d82cacbc73f3e18ec1
- https://git.kernel.org/stable/c/aaf356f872a60db1e96fb762a62c4607fd22741f
- https://git.kernel.org/stable/c/c3e9717276affe59fd8213706db021b493e81e34
- https://git.kernel.org/stable/c/d8441818690d795232331bd8358545c5c95b6b72
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37792.json
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-37792