CVE-2026-23421
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe/configfs: Free ctx_restore_mid_bb in release ctx_restore_mid_bb memory is allocated in wa_bb_store(), but xe_config_device_release() only frees ctx_restore_post_bb. Free ctx_restore_mid_bb[0].cs as well to avoid leaking the allocation when the configfs device is removed. (cherry picked from commit a235e7d0098337c3f2d1e8f3610c719a589e115f)
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-04-03 14:16:28.190000
Last modified
2026-11-05 22:18:25.647000
View original CVE JSON
{
"id": "CVE-2026-23421",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-04-03T14:16:28.190",
"lastModified": "2026-11-05T22:18:25.647",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/configfs: Free ctx_restore_mid_bb in release\n\nctx_restore_mid_bb memory is allocated in wa_bb_store(), but\nxe_config_device_release() only frees ctx_restore_post_bb.\n\nFree ctx_restore_mid_bb[0].cs as well to avoid leaking the allocation\nwhen the configfs device is removed.\n\n(cherry picked from commit a235e7d0098337c3f2d1e8f3610c719a589e115f)"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/xe/configfs: Liberar ctx_restore_mid_bb en la liberación\n\nLa memoria de ctx_restore_mid_bb se asigna en wa_bb_store(), pero xe_config_device_release() solo libera ctx_restore_post_bb.\n\nLiberar ctx_restore_mid_bb[0].cs también para evitar la fuga de la asignación cuando se elimina el dispositivo configfs.\n\n(extraído del commit a235e7d0098337c3f2d1e8f3610c719a589e115f)"
}
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"affectedData": [
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"programFiles": [
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"metrics": {
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"type": "Primary",
"cvssData": {
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
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],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-05T21:30:30.522388Z",
"id": "CVE-2026-23421",
"options": [
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"exploitation": "none"
},
{
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{
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"role": "CISA Coordinator",
"version": "2.0.3"
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"weaknesses": [
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"source": "[email protected]",
"type": "Primary",
"description": [
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"value": "NVD-CWE-noinfo"
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"configurations": [
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