CVE-2026-64599: Linux kernel · crypto: amlogic – avoid double cleanup in meson_crypto_probe()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 5.15.0-1117.124~20.04.1 : patch Linux kernel soon.
Data as of 28 Oct 2026, 11:48 UTC
- Patch
- Available – fixed in 5.15.0-1117.124~20.04.1, 5.15.0-1123.132~20.04.1, 5.15.0-1122.131~20.04.1 +59
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 6 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-8726-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8727-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8760-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8800-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8760-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8876-1 (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 has been applied in multiple Linux kernel versions, including several 5.15.x releases and others as listed. Users and administrators should update to these fixed kernel versions to remediate the vulnerability. No additional mitigation steps are required beyond applying the official kernel updates.
Description
A use-after-free vulnerability was identified in the Linux kernel's Amlogic crypto driver (meson_crypto_probe function). The issue occurs due to a double cleanup of resources when partial allocation fails, leading to a slab-use-after-free error detected by KASAN. This flaw was reproducible on kernel version 7.1 with KASAN enabled and has been fixed in multiple Linux kernel releases. The vulnerability has a high severity score and could lead to memory corruption and potential privilege escalation if exploited.
References
- ubuntu.com/security/CVE-2026-64599 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-64599 (opens in a new tab)
- git.kernel.org/linus/6d827ade51a24e18d81afb9f32756d339520a14c (opens in a new tab)
- git.kernel.org/stable/c/5b452019a4127f63c1f2147237fc287d1581f606 (opens in a new tab)
- git.kernel.org/stable/c/6d827ade51a24e18d81afb9f32756d339520a14c (opens in a new tab)
- git.kernel.org/stable/c/6dda8406d8a3da2519c8b388d443d7357839cb63 (opens in a new tab)
- git.kernel.org/stable/c/6effdbaca3cd8354540bdf42c7f5fb84412afeb7 (opens in a new tab)
- git.kernel.org/stable/c/84a00be9b736aa5dce902a290f62cbbbdcfab9ed (opens in a new tab)
- git.kernel.org/stable/c/c2c48aa7a6be36d4c93da75d14d4b4f2f4168c81 (opens in a new tab)
- git.kernel.org/stable/c/c80360b4e85099fc3835378a96a59c0a2480fb07 (opens in a new tab)
- git.kernel.org/stable/c/f30e2b879bda14bc3e1524fba6f8ab9ec119da90 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8727-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8760-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8800-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8760-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-2 (opens in a new tab)