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I. Basic Information for CVE-2026-23421
Vulnerability Information

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Vulnerability Title
drm/xe/configfs: Free ctx_restore_mid_bb in release
Source: NVD (National Vulnerability Database)
Vulnerability 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)
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于xe/configfs中未释放ctx_restore_mid_bb内存,可能导致内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux b30d5de3d40c3fa642079bac0d91f17091c5f877 ~ 7f971dfd48983074adc7bbcea3ee95ce7aad47cb -
LinuxLinux 6.18 -
II. Public POCs for CVE-2026-23421
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III. Intelligence Information for CVE-2026-23421
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IV. Related Vulnerabilities
V. Comments for CVE-2026-23421

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