Summary
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Cryptographic API;
- SMB network file system;
(CVE-2025-38561, CVE-2025-40019)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro Realtime 22.04 LTS Pro:Realtime:22.04:LTS | linux-intel-iot-realtime | 5.15.0-1091.93 |
| Ubuntu · Pro Realtime 22.04 LTS Pro:Realtime:22.04:LTS | linux-realtime | 5.15.0-1098.107 |
Vulnerabilities 2
-
Critical 9.8CVE-2025-38561 Public exploit
ksmbd: fix Preauh_HashValue race condition
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Preauh_HashValue race condition If client send multiple session setup requests to ksmbd, Preauh_HashValue race condition could happen. There is no need to free sess->Preauh_HashVal…
-
Unscored —CVE-2025-40019 Public exploit
crypto: essiv - Check ssize for decryption and in-place encryption
In the Linux kernel, the following vulnerability has been resolved: crypto: essiv - Check ssize for decryption and in-place encryption Move the ssize check to the start in essiv_aead_crypt so that it's also checked for decryption and in-place encryption.