CVE-2025-21696: linux kernel from 5.7 (inclusive), before 6.12.11 (exclusive), 6.13 · update rc1, 6.13 · update rc2 (+5 more affected…

Affected technology

linux kernel · from 5.7 (inclusive), before 6.12.11 (exclusive)
linux

linux kernel · 6.13 · update rc1
linux

linux kernel · 6.13 · update rc2
linux

linux kernel · 6.13 · update rc3
linux

linux kernel · 6.13 · update rc4
linux

linux kernel · 6.13 · update rc5
linux

linux kernel · 6.13 · update rc6
linux

linux kernel · 6.13 · update rc7
linux

Linux · 63b2d4174c4ad1f40b48d7138e71bcb564c1fe03 to before 8e2f6ba256dd1e590addc48e6e9577bf39c482f2, 63b2d4174c4ad1f40b48d7138e71bcb564c1fe03 to before 310ac886d68de661c3a334198d8604b722d7fdf8, 63b2d4174c4ad1f40b48d7138e71bcb564c1fe03 to before 0cef0bb836e3cfe00f08f9606c72abd72fe78ca3
Linux

Linux · 5.7
Linux

Component: Not specified by the source
File: include/linux/userfaultfd_k.h, mm/huge_memory.c, mm/hugetlb.c, mm/mremap.c

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.