- Vulnerability/
- CVE-2024-56690
CVE-2024-56690: crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY
First published: Sat Dec 28 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
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Reference Links
- 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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56690
- https://nvd.nist.gov/vuln/detail/CVE-2024-56690
- https://launchpad.net/bugs/cve/CVE-2024-56690
- https://security-tracker.debian.org/tracker/CVE-2024-56690
- https://ubuntu.com/security/CVE-2024-56690
- https://git.kernel.org/linus/662f2f13e66d3883b9238b0b96b17886179e60e2
Frequently Asked Questions
What is the severity of CVE-2024-56690?
CVE-2024-56690 has a moderate severity rating due to its impact on the Linux kernel's crypto operations.
How do I fix CVE-2024-56690?
To fix CVE-2024-56690, update the Linux kernel to the latest version that includes the patch.
What systems are affected by CVE-2024-56690?
CVE-2024-56690 affects all versions of the Linux kernel prior to the patch release addressing this vulnerability.
What are the potential consequences of CVE-2024-56690?
Exploitation of CVE-2024-56690 could lead to denial of service in encryption and decryption operations.
Is there a workaround for CVE-2024-56690?
Currently, there are no known effective workarounds for CVE-2024-56690 other than applying the kernel update.
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