CVE-2025-21884: linux kernel from 6.2 (inclusive), before 6.6.103 (exclusive), from 6.7 (inclusive), before 6.12.43 (exclusive), from…

Affected technology

linux kernel · from 6.2 (inclusive), before 6.6.103 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.43 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.13.6 (exclusive)
linux

linux kernel · 6.14 · update rc1
linux

linux kernel · 6.14 · update rc2
linux

linux kernel · 6.14 · update rc3
linux

linux kernel · 6.14 · update rc4
linux

Linux · 0cafd77dcd032d1687efaba5598cf07bce85997f to before 2668e038800b946d269f96ec1b258c01930a242c, 0cafd77dcd032d1687efaba5598cf07bce85997f to before 4ceb0bd4ffd009821b585ce6a8033b12b59fb5fb, 0cafd77dcd032d1687efaba5598cf07bce85997f to before c31a732fac46b00b95b78fcc9c37cb48dd6f2e0c, 0cafd77dcd032d1687efaba5598cf07bce85997f to before 5c70eb5c593d64d93b178905da215a9fd288a4b5
Linux

Linux · 6.2
Linux

Component: Not specified by the source
File: include/net/sock.h, net/core/sock.c, net/mptcp/subflow.c, net/netlink/af_netlink.c, net/rds/tcp.c, net/smc/af_smc.c, net/sunrpc/svcsock.c, net/sunrpc/xprtsock.c

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

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

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high. NVD’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.