CVE-2024-26584 (GCVE-0-2024-26584)
Vulnerability from cvelistv5
Published
2024-02-21 14:59
Modified
2026-08-05 11:26
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: a54667f6728c2714a400f3c884727da74b6d1717
Version: a54667f6728c2714a400f3c884727da74b6d1717
Version: a54667f6728c2714a400f3c884727da74b6d1717
Version: a54667f6728c2714a400f3c884727da74b6d1717
Version: a54667f6728c2714a400f3c884727da74b6d1717
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