cdx: Fix double free when sysfs file creation fails
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.
CVE-2026-93215
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-93215
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
"lessThan": "88f4cd42a04bdadd189d7f667a4c279f4e962ca6",
"versionType": "git"
},
{
"status": "affected",
"version": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
"lessThan": "4cd24873ab9fdbd730604881a6e8087bc7b99336",
"versionType": "git"
},
{
"status": "affected",
"version": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
"lessThan": "7e9451bf0bdba6daee1eaf4e7566612af6ca1c32",
"versionType": "git"
},
{
"status": "affected",
"version": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
"lessThan": "6f4acc3a3c300e174e3f586b97b04ed8f5948c36",
"versionType": "git"
}
],
"programFiles": [
"drivers/cdx/cdx.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.109",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/cdx/cdx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93215
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37918 · Revision 1
- Added to Heist Feed
- Publisher date