CVE-2025-37792: Linux kernel · Bluetooth: btrtl: Prevent potential NULL dereference
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 5 Nov 2026, 23:23 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 1 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
Description
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'
References
- git.kernel.org/stable/c/c3e9717276affe59fd8213706db021b493e81e34 (opens in a new tab)
- git.kernel.org/stable/c/73dc99c0ea94abd22379b2d82cacbc73f3e18ec1 (opens in a new tab)
- git.kernel.org/stable/c/2d7c60c2a38b4b461fa960ad0995136a6bfe0756 (opens in a new tab)
- git.kernel.org/stable/c/d8441818690d795232331bd8358545c5c95b6b72 (opens in a new tab)
- git.kernel.org/stable/c/3db6605043b50c8bb768547b23e0222f67ceef3e (opens in a new tab)
- git.kernel.org/stable/c/aaf356f872a60db1e96fb762a62c4607fd22741f (opens in a new tab)
- git.kernel.org/stable/c/53ceef799dcfc22c734d600811bfc9dd32eaea0a (opens in a new tab)
- git.kernel.org/stable/c/324dddea321078a6eeb535c2bff5257be74c9799 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/05/msg00045.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/05/msg00030.html (opens in a new tab)