High severity7.1NVD Advisory· Published May 6, 2026· Updated Jun 17, 2026
CVE-2026-43281
CVE-2026-43281
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
23cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=3.18.1,<6.1.167
- cpe:2.3:o:linux:linux_kernel:3.18:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.18:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.18:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.18:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.18:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.18:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.18:rc7:*:*:*:*:*:*
- (no CPE)
- osv-coords14 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0
>= 3.18.0, < 5.10.258+ 13 more
- (no CPE)range: >= 3.18.0, < 5.10.258
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1.160000.2.19
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6dnvdPatch
- git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36fnvdPatch
- git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265nvdPatch
- git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fbnvdPatch
- git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65abnvdPatch
- git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310nvdPatch
- git.kernel.org/stable/c/2c7ff651ec6b660c7c96a36db9328b3232f555d8nvd
- git.kernel.org/stable/c/ec0874447895b994182a962d2fee9ef075de5efdnvd
News mentions
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