CVE-2026-93215 (GCVE-0-2026-93215)

Vulnerability from cvelistv5 – Published: 2026-09-24 15:10 – Updated: 2026-09-24 15:10
VLAI
Title
cdx: Fix double free when sysfs file creation fails
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.
Severity
No CVSS data available.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d , < 88f4cd42a04bdadd189d7f667a4c279f4e962ca6 (git)
Affected: aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d , < 4cd24873ab9fdbd730604881a6e8087bc7b99336 (git)
Affected: aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d , < 7e9451bf0bdba6daee1eaf4e7566612af6ca1c32 (git)
Affected: aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d , < 6f4acc3a3c300e174e3f586b97b04ed8f5948c36 (git)
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Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.12.109 , ≤ 6.12.* (semver)
Unaffected: 6.18.50 , ≤ 6.18.* (semver)
Unaffected: 7.2.4 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncdx: Fix double free when sysfs file creation fails\n\nIn cdx_create_res_attr(), if sysfs_create_bin_file() fails, the code\nfrees res_attr but doesn\u0027t set cdx_dev-\u003eres_attr[num] to NULL. This\nleaves a dangling pointer in the array. Then cdx_destroy_res_attr()\nfrees the already-freed memory. Fix the double free by initializing\ncdx_dev-\u003eres_attr[num] after sysfs_create_bin_file() completes."
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    "dateReserved": "2026-09-17T16:02:15.093Z",
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          }
        ],
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        "lastModified": "2026-09-24T16:17:16.550",
        "metrics": {},
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
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}



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