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CVE-2026-74327

vmalloc: fix NULL pointer dereference in is_vm_area_hugepages() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix NULL pointer dereference in is_vm_area_hugepages() find_vm_area() can return NULL if the given address is not a valid vmalloc area. Check the return value before dereferencing it to avoid a kernel crash.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 121e6f3258fe393e22c36f61a319be8a4f2c05ae before c741485fa09bf5900f76d95424d86316d0a00331; affected 121e6f3258fe393e22c36f61a319be8a4f2c05ae before b86f98e53df4f5d57259817b8e9a00167b78bae6; affected 121e6f3258fe393e22c36f61a319be8a4f2c05ae before af71c2b88ccae44418e273bdfe0c96be8515151e; affected 121e6f3258fe393e22c36f61a319be8a4f2c05ae before a1bca6b69bd934e2731d009e645038e05d57ce59; affected 121e6f3258fe393e22c36f61a319be8a4f2c05ae before bbd664b7c77f6488cd5652231c0fe01d069a73ea; affected 121e6f3258fe393e22c36f61a319be8a4f2c05ae before 55a44f5259e6a5f1d5b11cb0e19e943c9cc62280; affected 121e6f3258fe393e22c36f61a319be8a4f2c05ae before c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8
Linux / Linuxaffected 5.13; unaffected 0 before 5.13; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References