CVE-2026-53294mailbox: mailbox-test: don't free the reused channel
Updated under an hour ago ()
Does this affect you?
It affects Linux and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Jun 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 before fc0089f82c3e36060c2c79156bc2018bfb16b56b; 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 builds before 5d4f3d0f64f1016cb78b400a70b67df91fac99b5; from 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 before c494a11da45ad7ec9b0ff216c3e3ace351193bb6; 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 builds before 3afca89fae501dbd7421e1777b5b8f033b1d98d0; 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 builds before 5c209299b0113e289e238fa5f2e8f00c59f76060; from 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 before 82f6dcea46cf5de65c4ba7283f7c7b34de4a324d; from 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 before 240c71a2aea36a1a4210f911a1c32ea88777e8e4; from 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 before 88ebadbf0deefdaccdab868b44ff70a0a257f473 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.4 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10; 7.1 | NVD |
References
- https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56bpatch
- https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5patch
- https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6patch
- https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0patch
- https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060patch
- https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324dpatch
- https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4patch
- https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.