High severity8.8NVD Advisory· Published May 27, 2026· Updated Jun 16, 2026
CVE-2026-46056
CVE-2026-46056
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
hci_conn lookup and field access must be covered by hdev lock in hci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise the connection can be freed concurrently.
Extend the hci_dev_lock critical section to cover all conn usage in both handlers.
Keep the existing keypress notification behavior unchanged by routing the early exits through a common unlock path.
Affected products
80- osv-coords77 versionspkg:rpm/almalinux/bpftoolpkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-corepkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/almalinux/kernel-corepkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-modules-extra-matchedpkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-rt-64kpkg:rpm/almalinux/kernel-rt-64k-corepkg:rpm/almalinux/kernel-rt-64k-debugpkg:rpm/almalinux/kernel-rt-64k-debug-corepkg:rpm/almalinux/kernel-rt-64k-debug-develpkg:rpm/almalinux/kernel-rt-64k-debug-modulespkg:rpm/almalinux/kernel-rt-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-debug-modules-extrapkg:rpm/almalinux/kernel-rt-64k-develpkg:rpm/almalinux/kernel-rt-64k-modulespkg:rpm/almalinux/kernel-rt-64k-modules-corepkg:rpm/almalinux/kernel-rt-64k-modules-extrapkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/kernel-uki-virt-addonspkg:rpm/almalinux/kernel-zfcpdumppkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/libperfpkg:rpm/almalinux/perfpkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/rtlapkg:rpm/almalinux/rvpkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweed
< 4.18.0-553.134.1.el8_10+ 76 more
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.rt7.475.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 4.18.0-553.134.1.el8_10
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 7.0.11-1.1
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47nvdPatch
- git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2nvdPatch
- git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993nvdPatch
- git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7nvdPatch
- git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903efnvdPatch
- git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8nvdPatch
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