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 28 Oct 2026, 05:11 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.
Patches and advisories
- 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)
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
A patch is available and should be applied promptly. The vulnerability has been fixed in Linux kernel versions 6.8.0-147.147, 6.8.0-1067.70, 7.0.0-1014.14~24.04.1, 6.8.0-1071.79, 7.0.0-1017.17~24.04.1, and other specified fixed versions. Ubuntu security notices USN-8886-1, USN-8887-1, USN-8887-2, USN-8887-3, USN-8888-1, USN-8888-2, USN-8917-1, and USN-8918-1 provide relevant updates. Users should update their Linux kernel packages to these fixed versions and reboot systems to apply the fixes. No additional mitigation steps are indicated by the vendor advisory.
Description
CVE-2026-72335 is a high-severity use-after-free vulnerability in the Linux kernel's Bluetooth management subsystem. It involves improper cleanup of advertisement monitors when failures occur during Microsoft (MSFT) offload add operations, leading to a potential kernel memory corruption. The flaw was identified through kernel address sanitizer (KASAN) reports and affects multiple Linux kernel versions. This issue has been fixed in several Linux kernel releases, and patches are available from Ubuntu security notices.
References
- 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)
- 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/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)