CVE-2026-93215

In the Linux kernel, the following vulnerability has been resolved: cdx: Fix double free when sysfs file creation fails In cdx_create_res_attr(), if sysfs_create_bin_file() fails, the code frees res_attr but doesn't set cdx_dev->res_attr[num] to NULL. This leaves a dangling pointer in the array. Then cdx_destroy_res_attr() frees the already-freed memory. Fix the double free by initializing cdx_dev->res_attr[num] after sysfs_create_bin_file() completes.

Package Linux Kernel
Published 2026-09-24
Last modified 2026-09-24
Patch available
Yes

Affected versions

Linux kernel versions 6.8 and later are affected. Fixed in 6.12.109, 6.18.50, 7.2.4, 7.3-rc1 and their respective stable series.

Affected from
≥ 6.8
Fixed in
✓ 6.12.109 6.12.x ✓ 6.18.50 6.18.x ✓ 7.2.4 7.2.x ✓ 7.3-rc1

Frequently asked questions

  • What is CVE-2026-93215?

    CVE-2026-93215 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.8 onward and has been patched in 6.12.109, 6.18.50, 7.2.4 and others. CVE-2026-93215 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-93215?

    Yes. CVE-2026-93215 has been patched. Fixed versions include 6.12.109, 6.18.50, 7.2.4 and others. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-93215 actively exploited?

    No. CVE-2026-93215 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.