CVE-2026-72335: Linux kernel · Bluetooth: MGMT: Fix adv monitor add failure cleanup
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 6.8.0-147.147 : patch Linux kernel soon.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-147.147, 6.8.0-1067.70, 7.0.0-1014.14~24.04.1 +26
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
An official patch is available and should be applied to affected Linux kernel versions. The fix corrects the ownership and cleanup logic for advertisement monitors in the Bluetooth management code, preventing use-after-free conditions. Users should update to patched kernel versions as provided by their Linux distribution vendors. No additional mitigations are indicated by the vendor advisory.
Description
A use-after-free vulnerability in the Linux kernel Bluetooth management subsystem was fixed. The flaw involved improper cleanup of advertisement monitors during failure scenarios in the MSFT offload add path, leading to a slab-use-after-free detected by KASAN. This could cause memory corruption and potentially allow local attackers with Bluetooth management privileges to compromise system integrity. The issue affects specific Linux kernel versions and has been addressed with an official patch.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72335 (opens in a new tab)
- git.kernel.org/stable/c/384a4b2fef9ffe5e270ee5558975c0504881c5fb (opens in a new tab)
- git.kernel.org/stable/c/5aabbd01ac315a72bcdfd42985ede712c4744689 (opens in a new tab)
- git.kernel.org/stable/c/b1a719b3c4359ef731646fb7c7844e53dddbda72 (opens in a new tab)
- git.kernel.org/stable/c/dbd935a9e056545721bc4e9ce518c775d787b21e (opens in a new tab)
- git.kernel.org/stable/c/dfc8373893b1876bb367700eac9d776316dabd96 (opens in a new tab)
- git.kernel.org/stable/c/fb256d07395ebbc950f42e439d3896ec3a25c845 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72335 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72335 (opens in a new tab)
- git.kernel.org/linus/384a4b2fef9ffe5e270ee5558975c0504881c5fb (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8886-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8917-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8918-1 (opens in a new tab)