CVE-2026-43281In the Linux kernel, the following vulnerability has been resolved: mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate() Although it is guided that `#mbox-cells` must be at least 1, there a…
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In the Linux kernel, the following vulnerability has been resolved: mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate() Although it is guided that `#mbox-cells` must be at least 1, there are many instances of `#mbox-cells = <0>;` in the device tree. If that is the case and the corresponding mailbox controller does not provide `fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will be used by default and out-of-bounds accesses could occur due to lack of bounds check in that function.
- CVSS
- 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 3.18.1 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.77; from 6.13 before 6.18.16; from 6.19 before 6.19.6; 3.18; 3.18; 3.18; and 4 more ranges | NVD |
References
- https://git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6dpatch
- https://git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36fpatch
- https://git.kernel.org/stable/c/2c7ff651ec6b660c7c96a36db9328b3232f555d8
- https://git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265patch
- https://git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fbpatch
- https://git.kernel.org/stable/c/ec0874447895b994182a962d2fee9ef075de5efd
- https://git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65abpatch
- https://git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310patch
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.