CVE-2023-53751
Critical
cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname
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.
Exploit probability
0.4%
Published
December 8, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2023-53751
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0b08c4c499200be67d54c439d56e5ea866869945
- https://git.kernel.org/stable/c/64d62ac6d6514cba1305bd08e271ec1843bdd612
- https://git.kernel.org/stable/c/90c49fce1c43e1cc152695e20363ff5087897c09
- https://git.kernel.org/stable/c/c511954bf142fe1995aec3c739a9f1a76990283a
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53751.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53751