CVE-2026-53296

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.

Affected products

• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – 0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b
• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – 15c4cc3850cfe1b973eb7b63c02314b267f06a64
• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – 187069ccc3474516af32350e20d7e449160fa6de
• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – 81c9e7e4030e71391ab479c4c6e17b64802577aa
• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – 6c6ce2ccb4fcf1617fec83f91b21aa0265f30701
• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – 742001919653e7313b4e91780c5d108be1692365
• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – 02beb178e2e159daeb8f992d7abb16a37da31664
• Linux / Linux8ea4484d0c2bb4e2152261943fa1a3522654b1c7 – c02053a9055d5fdfd32432287cca8958db1d5bc5
• Linux / Linux4.4 – 4.4
• Linux / Linux0 – 4.4
• Linux / Linux5.10.258 – 5.10.*
• Linux / Linux5.15.209 – 5.15.*
• Linux / Linux6.1.175 – 6.1.*
• Linux / Linux6.6.141 – 6.6.*
• Linux / Linux6.12.91 – 6.12.*
• Linux / Linux6.18.33 – 6.18.*
• Linux / Linux7.0.10 – 7.0.*
• Linux / Linux7.1 – *

References

• MISChttps://git.kernel.org/stable/c/0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b
• MISChttps://git.kernel.org/stable/c/15c4cc3850cfe1b973eb7b63c02314b267f06a64
• MISChttps://git.kernel.org/stable/c/187069ccc3474516af32350e20d7e449160fa6de
• MISChttps://git.kernel.org/stable/c/81c9e7e4030e71391ab479c4c6e17b64802577aa
• MISChttps://git.kernel.org/stable/c/6c6ce2ccb4fcf1617fec83f91b21aa0265f30701
• MISChttps://git.kernel.org/stable/c/742001919653e7313b4e91780c5d108be1692365
• MISChttps://git.kernel.org/stable/c/02beb178e2e159daeb8f992d7abb16a37da31664
• MISChttps://git.kernel.org/stable/c/c02053a9055d5fdfd32432287cca8958db1d5bc5