In the Linux kernel, the following vulnerability has been resolved: net: tls: handle backlogging of crypto requests Since we're setting the CRYPTO_TFM_REQ_MAY_BACKLOG flag on our requests to the crypto API, crypto_aead_{encrypt,decrypt} can return -EBUSY instead of -EINPROGRESS in valid situations. For example, when the cryptd queue for AESNI is full (easy to trigger with an artificially low cryptd.cryptd_max_cpu_qlen), requests will be enqueued to the backlog but still processed. In that case, the async callback will also be called twice: first with err == -EINPROGRESS, which it seems we can just ignore, then with err == 0. Compared to Sabrina's original patch this version uses the new tls_*crypt_async_wait() helpers and converts the EBUSY to EINPROGRESS to avoid having to modify all the error handling paths. The handling is identical.
History

Tue, 13 Aug 2024 23:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:rhel_eus:8.8

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-21T14:59:12.452Z

Updated: 2024-08-02T00:07:19.862Z

Reserved: 2024-02-19T14:20:24.125Z

Link: CVE-2024-26584

cve-icon Vulnrichment

Updated: 2024-07-05T15:20:37.699Z

cve-icon NVD

Status : Modified

Published: 2024-02-21T15:15:09.420

Modified: 2024-05-25T15:15:08.847

Link: CVE-2024-26584

cve-icon Redhat

Severity : Low

Publid Date: 2024-02-21T00:00:00Z

Links: CVE-2024-26584 - Bugzilla