CVE-2026-74327

vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()

N/A

Published: August 15, 2026 at 05:58 AM UTC

Updated: August 17, 2026 at 06:19 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.13 ≤ v < 5.15.2125.13 ≤ v < 6.1.1785.13 ≤ v < 6.12.975.13 ≤ v < 6.18.405.13 ≤ v < 6.6.1455.13 ≤ v < 7.1.55.13 ≤ v < 7.2121e6f3258fe393e22c36f61a319be8a4f2c05ae5.13

Vendor states this is fixed in 55a44f5259e6a5f1d5b11cb0e19e943c9cc62280 (fixed)

Vendor states this is fixed in a1bca6b69bd934e2731d009e645038e05d57ce59 (fixed)

Vendor states this is fixed in af71c2b88ccae44418e273bdfe0c96be8515151e (fixed)

Vendor states this is fixed in b86f98e53df4f5d57259817b8e9a00167b78bae6 (fixed)

Vendor states this is fixed in bbd664b7c77f6488cd5652231c0fe01d069a73ea (fixed)

Vendor states this is fixed in c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8 (fixed)

Vendor states this is fixed in c741485fa09bf5900f76d95424d86316d0a00331 (fixed)

Vendor states this is fixed in 5.13 (unaffected)

Vendor states this is fixed in 5.15.212 (unaffected)

Vendor states this is fixed in 6.1.178 (unaffected)

Vendor states this is fixed in 6.12.97 (unaffected)

Vendor states this is fixed in 6.18.40 (unaffected)