CVE-2024-56690
Published: January 2, 2025Last modified: January 2, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET"), the pcrypt encryption and decryption operations return -EAGAIN when the CPU goes online or offline. In alg_test(), a WARN is generated when pcrypt_aead_decrypt() or pcrypt_aead_encrypt() returns -EAGAIN, the unnecessary panic will occur when panic_on_warn set 1. Fix this issue by calling crypto layer directly without parallelization in that case.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.120-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.12.41-r0) |
References
- https://git.kernel.org/stable/c/5edae7a9a35606017ee6e05911c290acee9fee5a
- https://git.kernel.org/stable/c/662f2f13e66d3883b9238b0b96b17886179e60e2
- https://git.kernel.org/stable/c/7ddab756f2de5b7b43c122ebebdf37f400fb2b6f
- https://git.kernel.org/stable/c/92834692a539b5b7f409e467a14667d64713b732
- https://git.kernel.org/stable/c/96001f52ae8c70e2c736d3e1e5dc53d5b521e5ca
- https://git.kernel.org/stable/c/a8e0074ffb38c9a5964a221bb998034d016c93a2
- https://git.kernel.org/stable/c/a92ccd3618e42333ac6f150ecdac14dca298bc7a
- https://git.kernel.org/stable/c/dd8bf8eb5beba1e7c3b11a9a5a58ccbf345a69e6
- https://git.kernel.org/stable/c/fca8aed12218f96b38e374ff264d78ea1fbd23cc
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html