CVE-2026-93215
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d < 88f4cd42a04bdadd189d7f667a4c279f4e962ca6 | affected |
| Linux | Linux | aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d < 4cd24873ab9fdbd730604881a6e8087bc7b99336 | affected |
| Linux | Linux | aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d < 7e9451bf0bdba6daee1eaf4e7566612af6ca1c32 | affected |
| Linux | Linux | aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d < 6f4acc3a3c300e174e3f586b97b04ed8f5948c36 | affected |
| Linux | Linux | 6.8 | affected |
| Linux | Linux | 0 < 6.8 | unaffected |
| Linux | Linux | 6.12.109 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.50 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.4 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/88f4cd42a04bdadd189d7f667a4c279f4e962ca6
- https://git.kernel.org/stable/c/4cd24873ab9fdbd730604881a6e8087bc7b99336
- https://git.kernel.org/stable/c/7e9451bf0bdba6daee1eaf4e7566612af6ca1c32
- https://git.kernel.org/stable/c/6f4acc3a3c300e174e3f586b97b04ed8f5948c36
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