High 7.8Published Dec 24, 2025

CVE-2023-54046crypto: essiv - Handle EBUSY correctly

Updated under an hour ago (Oct 26, 2026, 4:40 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: crypto: essiv - Handle EBUSY correctly As it is essiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of essiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from be1eb7f78aa8fbe34779c56c266ccd0364604e71 before c61e7d182ee3f3f5ecf18a2964e303d49c539b52; from be1eb7f78aa8fbe34779c56c266ccd0364604e71 before 796e02cca30a67322161f0745e5ce994bbe75605; from be1eb7f78aa8fbe34779c56c266ccd0364604e71 before 840a1d3b77c1b062bd62b4733969a5b1efc274ce; from be1eb7f78aa8fbe34779c56c266ccd0364604e71 before a006aa3eedb8bfd6fe317c3cfe9c86ffe76b2385; from be1eb7f78aa8fbe34779c56c266ccd0364604e71 before 69c67d451fc19d88e54f7d97e8e7c093e08357e1; from be1eb7f78aa8fbe34779c56c266ccd0364604e71 before b5a772adf45a32c68bef28e60621f12617161556	CNA record

References

References

https://git.kernel.org/stable/c/c61e7d182ee3f3f5ecf18a2964e303d49c539b52
https://git.kernel.org/stable/c/796e02cca30a67322161f0745e5ce994bbe75605
https://git.kernel.org/stable/c/840a1d3b77c1b062bd62b4733969a5b1efc274ce
https://git.kernel.org/stable/c/a006aa3eedb8bfd6fe317c3cfe9c86ffe76b2385
https://git.kernel.org/stable/c/69c67d451fc19d88e54f7d97e8e7c093e08357e1
https://git.kernel.org/stable/c/b5a772adf45a32c68bef28e60621f12617161556

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.