CVE-2026-23364
7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 8a665d733940592e671ec6afadcd0be80a091a80 | affected |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < cd52a0e309659537048a864211abc3ea4c5caa63 | affected |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 307afccb751f542246bd5dc68a2c1ffe1a78418c | affected |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 2cdc56ed67615ba0921383a688f24415ebe065f3 | affected |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 93c0a22fec914ec4b697e464895a0f594e29fb28 | affected |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < f4588b85efd6007d46b80aa1b9fb746628ffb3dc | affected |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < c5794709bc9105935dbedef8b9cf9c06f2b559fa | affected |
| Linux | Linux | 5.15 | affected |
| Linux | Linux | 0 < 5.15 | unaffected |
| Linux | Linux | 5.15.210 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.167 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.130 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.78 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.19 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.7 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/8a665d733940592e671ec6afadcd0be80a091a80
- https://git.kernel.org/stable/c/cd52a0e309659537048a864211abc3ea4c5caa63
- https://git.kernel.org/stable/c/307afccb751f542246bd5dc68a2c1ffe1a78418c
- https://git.kernel.org/stable/c/2cdc56ed67615ba0921383a688f24415ebe065f3
- https://git.kernel.org/stable/c/93c0a22fec914ec4b697e464895a0f594e29fb28
- https://git.kernel.org/stable/c/f4588b85efd6007d46b80aa1b9fb746628ffb3dc
- https://git.kernel.org/stable/c/c5794709bc9105935dbedef8b9cf9c06f2b559fa
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