CVE-2026-53296
Published Jun 26, 2026
Modified Jun 30, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: free channels on probe error On probe error, free the previously obtained channels. This not only prevents a leak, but also UAF scenarios because the client structure will be removed nonetheless because it was allocated with devm.
EPSS — Exploit Prediction
0.0018
Probability of exploitation
0.07%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
References
Other References
https://git.kernel.org/stable/c/02beb178e2e159daeb8f992d7abb16a37da31664
https://git.kernel.org/stable/c/0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b
https://git.kernel.org/stable/c/15c4cc3850cfe1b973eb7b63c02314b267f06a64
https://git.kernel.org/stable/c/187069ccc3474516af32350e20d7e449160fa6de
https://git.kernel.org/stable/c/6c6ce2ccb4fcf1617fec83f91b21aa0265f30701
https://git.kernel.org/stable/c/742001919653e7313b4e91780c5d108be1692365
https://git.kernel.org/stable/c/81c9e7e4030e71391ab479c4c6e17b64802577aa
https://git.kernel.org/stable/c/c02053a9055d5fdfd32432287cca8958db1d5bc5
Frequently Asked Questions
What is CVE-2026-53296? +
In the Linux kernel, the following vulnerability has been resolved:
mailbox: mailbox-test: free channels on probe error
On probe error, free the previously obtained channels. This not only
prevents a leak, but also UAF scenarios because the client structure
will be removed nonetheless because it was allocated with devm.
How do I check if I'm vulnerable to CVE-2026-53296? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.