CVE-2026-23364
High
ksmbd: Compare MACs in constant time
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().
Exploit probability
0.4%
Published
March 25, 2026
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2026-23364
View original source
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().
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2cdc56ed67615ba0921383a688f24415ebe065f3
- https://git.kernel.org/stable/c/307afccb751f542246bd5dc68a2c1ffe1a78418c
- https://git.kernel.org/stable/c/8a665d733940592e671ec6afadcd0be80a091a80
- https://git.kernel.org/stable/c/93c0a22fec914ec4b697e464895a0f594e29fb28
- https://git.kernel.org/stable/c/c5794709bc9105935dbedef8b9cf9c06f2b559fa
- https://git.kernel.org/stable/c/cd52a0e309659537048a864211abc3ea4c5caa63
- https://git.kernel.org/stable/c/f4588b85efd6007d46b80aa1b9fb746628ffb3dc
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23364.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23364