CVE-2023-53751cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname TCP_Server_Info::hostname may be updated once or many times during reconnect, so protect its access outside reconnect path as well and then prevent any potential use-after-free bugs.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/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
- Aug 5, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 93d5cb517db39e8af8d1292f9e785e4983b7f708 builds before 64d62ac6d6514cba1305bd08e271ec1843bdd612; from 93d5cb517db39e8af8d1292f9e785e4983b7f708 before c511954bf142fe1995aec3c739a9f1a76990283a; 93d5cb517db39e8af8d1292f9e785e4983b7f708 builds before 0b08c4c499200be67d54c439d56e5ea866869945; 93d5cb517db39e8af8d1292f9e785e4983b7f708 builds before 90c49fce1c43e1cc152695e20363ff5087897c09 | CNA record |
References
- https://git.kernel.org/stable/c/64d62ac6d6514cba1305bd08e271ec1843bdd612
- https://git.kernel.org/stable/c/c511954bf142fe1995aec3c739a9f1a76990283a
- https://git.kernel.org/stable/c/0b08c4c499200be67d54c439d56e5ea866869945
- https://git.kernel.org/stable/c/90c49fce1c43e1cc152695e20363ff5087897c09
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.