CVE-2026-53296

HighCVSS 7.8/10Last modified Nov 6, 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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < 0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b; >= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < 15c4cc3850cfe1b973eb7b63c02314b267f06a64; >= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < 187069ccc3474516af32350e20d7e449160fa6de; >= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < 81c9e7e4030e71391ab479c4c6e17b64802577aa; >= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < 6c6ce2ccb4fcf1617fec83f91b21aa0265f30701; >= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < 742001919653e7313b4e91780c5d108be1692365; >= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < 02beb178e2e159daeb8f992d7abb16a37da31664; >= 8ea4484d0c2bb4e2152261943fa1a3522654b1c7, < c02053a9055d5fdfd32432287cca8958db1d5bc5
LinuxLinux4.4

References

Timeline

Published
Jun 26, 2026
Last modified
Nov 6, 2026
NVD status
Analyzed

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CVE-2026-53296: High severity, CVSS 7.8 | Vulnix