CVEvulnerability

CVE-2026-23364

7.4 HIGH Published 2026-03-25 Modified 2026-10-15 Official page ↗

Status: Modified
Published: 2026-03-25
Last modified: 2026-10-15
Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67): 7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp() with the correct function, crypto_memneq().

Affected configurations

• linux linux kernel (>= 5.15.1 < 6.1.167) • linux linux kernel (>= 6.2 < 6.6.130) • linux linux kernel (>= 6.7 < 6.12.78) • linux linux kernel (>= 6.13 < 6.18.19) • linux linux kernel (>= 6.19 < 6.19.7) • linux linux kernel 5.15 • linux linux kernel 7.0

References

https://git.kernel.org/stable/c/2cdc56ed67615ba0921383a688f24415ebe065f3 Patch
https://git.kernel.org/stable/c/307afccb751f542246bd5dc68a2c1ffe1a78418c Patch
https://git.kernel.org/stable/c/8a665d733940592e671ec6afadcd0be80a091a80 git.kernel.org
https://git.kernel.org/stable/c/93c0a22fec914ec4b697e464895a0f594e29fb28 Patch
https://git.kernel.org/stable/c/c5794709bc9105935dbedef8b9cf9c06f2b559fa Patch
https://git.kernel.org/stable/c/cd52a0e309659537048a864211abc3ea4c5caa63 Patch
https://git.kernel.org/stable/c/f4588b85efd6007d46b80aa1b9fb746628ffb3dc Patch
https://cert-portal.siemens.com/productcert/html/ssa-784472.html cert-portal.siemens.com