CVE-2024-26584: net: tls: handle backlogging of crypto requests
First published: Wed Feb 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=4.16.0<6.1.84 | |
| Linux Linux kernel | >=6.2.0<6.6.18 | |
| Linux Linux kernel | >=6.7.0<6.7.6 | |
| redhat/kernel | <6.8 | 6.8 |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.115-1 6.1.119-1 6.12.5-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/13eca403876bbea3716e82cdfe6f1e6febb38754
- https://git.kernel.org/stable/c/3ade391adc584f17b5570fd205de3ad029090368
- https://git.kernel.org/stable/c/8590541473188741055d27b955db0777569438e3
- https://git.kernel.org/stable/c/ab6397f072e5097f267abf5cb08a8004e6b17694
- https://git.kernel.org/stable/c/cd1bbca03f3c1d845ce274c0d0a66de8e5929f72
- https://launchpad.net/bugs/cve/CVE-2024-26584
- https://lore.kernel.org/linux-cve-announce/2024022148-showpiece-yanking-107c@gregkh/T/#u
- https://github.com/torvalds/linux/commit/859054147318
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2265534
- https://access.redhat.com/errata/RHSA-2024:1882
- https://access.redhat.com/errata/RHSA-2024:1881
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/security/cve/CVE-2024-26584
- https://access.redhat.com/errata/RHSA-2024:4211
- https://access.redhat.com/errata/RHSA-2024:4352
- https://access.redhat.com/errata/RHSA-2024:4447
- https://access.redhat.com/errata/RHSA-2024:5255
- https://bugzilla.redhat.com/show_bug.cgi?id=2265519
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26584
- https://nvd.nist.gov/vuln/detail/CVE-2024-26584
- https://security-tracker.debian.org/tracker/CVE-2024-26584
- https://ubuntu.com/security/CVE-2024-26584
- https://git.kernel.org/linus/8590541473188741055d27b955db0777569438e3
- agent/title
- agent/type
- collector/epss-latest
- source/FIRST
- agent/epss
- agent/weakness
- agent/remedy
- agent/first-publish-date
- agent/author
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- collector/launchpad-cve
- source/Launchpad
- agent/severity
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2024-26584
- agent/tags
- collector/nvd-cve
- collector/usn-cve
- source/Ubuntu
- agent/description
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/references
- agent/event
- agent/trending
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/4.16.0
- version/linux linux kernel/6.2.0
- version/linux linux kernel/6.7.0
- package-manager/redhat
- package-manager/debian