CVE-2026-23226: linux kernel from 6.3 (inclusive), before 6.18.11 (exclusive), from 6.19 (inclusive), before 6.19.1 (exclusive); +1…

Affected technology

linux kernel · from 6.3 (inclusive), before 6.18.11 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.1 (exclusive)
linux

Linux · 1d9c4172110e645b383ff13eee759728d74f1a5d to before 43ad494ac6e940a8eabf25d5bd77bb3bb53b1153, 1d9c4172110e645b383ff13eee759728d74f1a5d to before 4c2ca31608521895dd742a43beca4b4d29762345, 1d9c4172110e645b383ff13eee759728d74f1a5d to before e4a8a96a93d08570e0405cfd989a8a07e5b6ff33, 1d9c4172110e645b383ff13eee759728d74f1a5d to before 36ef605c0395b94b826a8c8d6f2697071173de6e, 1d9c4172110e645b383ff13eee759728d74f1a5d to before 4f3a06cc57976cafa8c6f716646be6c79a99e485, b1caecbf34b8c8260d851ec4efde71f3694460b7, 91bbf9cb2387a0d76322e9a343bc6bc160f66b3f, 853c416710b075153c1e1421e099ffbe5dac68ce, 5.15.145 to before 5.16, 6.1.29 to before 6.2, 6.2.16 to before 6.3
Linux

Linux · 6.3
Linux

Component: Not specified by the source
File: fs/smb/server/mgmt/user_session.c, fs/smb/server/mgmt/user_session.h, fs/smb/server/smb2pdu.c

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · 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 8.8/10) rates confidentiality, integrity and availability impact as high. NVD’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.