CVE-2026-53294
mailbox: mailbox-test: don't free the reused channel
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: don't free the reused channel The RX channel can be aliased to the TX channel if it has a different MMIO. This special case needs to be handled when freeing the channels otherwise a double-free occurs.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 26, 2026 |
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Affected Versions
Linux / Linux
8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < fc0089f82c3e36060c2c79156bc2018bfb16b56b 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < 5d4f3d0f64f1016cb78b400a70b67df91fac99b5 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < c494a11da45ad7ec9b0ff216c3e3ace351193bb6 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < 3afca89fae501dbd7421e1777b5b8f033b1d98d0 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < 5c209299b0113e289e238fa5f2e8f00c59f76060 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < 82f6dcea46cf5de65c4ba7283f7c7b34de4a324d 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < 240c71a2aea36a1a4210f911a1c32ea88777e8e4 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 < 88ebadbf0deefdaccdab868b44ff70a0a257f473
Linux / Linux
4.4
References
git.kernel.org: https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b git.kernel.org: https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5 git.kernel.org: https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6 git.kernel.org: https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0 git.kernel.org: https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060 git.kernel.org: https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d git.kernel.org: https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4 git.kernel.org: https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473