High severity8.1NVD Advisory· Published May 6, 2026· Updated Jun 17, 2026
CVE-2026-43134
CVE-2026-43134
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ
This adds a check for encryption key size upon receiving L2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which expects L2CAP_CR_LE_BAD_KEY_SIZE.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
17- 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
>= 3.14.0, < 5.10.252+ 13 more
- (no CPE)range: >= 3.14.0, < 5.10.252
- (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/138d7eca445ef37a0333425d269ee59900ca1104nvdPatch
- git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6nvdPatch
- git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45nvdPatch
- git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97nvdPatch
- git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecefnvdPatch
- git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041nvdPatch
- git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaadnvdPatch
- git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4nvdPatch
News mentions
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