CVE-2026-46097: Linux kernel · Input: edt-ft5x06 – fix use-after-free in debugfs teardown
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in 7.0.0-1010.10 : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-1010.10, 7.0.0-1009.9, 7.0.0-1008.8 +1
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 27 May 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 Linux kernel to 7.0.0-1010.10, 7.0.0-1009.9, 7.0.0-1008.8 or 7.0.0-27.27.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| linux-hwe-edge | Affected
| Fixed in
|
AI-suggested
An official patch is available and included in Linux kernel updates distributed by Ubuntu. Users should apply the update to versions 7.0.0-27.27 or later and reboot the system to complete remediation. Due to an ABI change in the kernel update, recompilation and reinstallation of all third-party kernel modules is required. Follow vendor guidance in Ubuntu Security Notice USN-8488-1 for detailed update instructions. No additional mitigation is required beyond applying the official fix.
Description
A use-after-free vulnerability (CVE-2026-46097) was identified and fixed in the Linux kernel's edt-ft5x06 input driver. The issue arose from a race condition during debugfs teardown where debugfs files remained accessible after a buffer was freed, potentially leading to memory corruption. The fix involves protecting the buffer freeing with a device mutex and nullifying the pointer to prevent unsafe access. This vulnerability affects multiple Linux kernel versions prior to 7.0.0-27.27 and related builds. A patch is available and included in standard Linux kernel updates distributed by Ubuntu. Users should update and reboot to apply the fix and recompile any third-party kernel modules due to ABI changes.
References
- nvd.nist.gov/vuln/detail/CVE-2026-46097 (opens in a new tab)
- git.kernel.org/stable/c/9f6c5e7b747d40e1c65cbfcb975857d25154c075 (opens in a new tab)
- git.kernel.org/stable/c/a516d43886623e3cca5fa3446bed8fc7c7982be2 (opens in a new tab)
- git.kernel.org/stable/c/f5f9e07060519e2287e99019a6de1eb3ebb65c37 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46097 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-46097 (opens in a new tab)
- git.kernel.org/linus/f5f9e07060519e2287e99019a6de1eb3ebb65c37 (opens in a new tab)
- ubuntu.com/security/notices/USN-8488-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8489-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8488-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8507-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8569-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8603-1 (opens in a new tab)