CVE-2026-53251
linux: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference...
CVE-2026-53251 is fixed in 49 products on 1 platform, first by DEBIAN-CVE-2026-53251, released June 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0012
1st percentile
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync hci_get_route() returns a reference-counted hci_dev pointer via hci_dev_hold(). The function exits normally or with an error without ever releasing it.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23237-1 | Aug 11, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.37.1.160000.2.19 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.37.1.160000.2.19 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-206.104.3.3.el9uek | ELSA-2026-500248 | Sep 4, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.37.1 | OPENSUSE-SU-2026:21555-1 | Aug 12, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.37.1 | SUSE-SU-2026:23231-1 | Aug 11, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.94-1 | DEBIAN-CVE-2026-53251 | Jun 25, 2026 |
| linux · Debian 14 | 7.0.13-1 | DEBIAN-CVE-2026-53251 | Jun 25, 2026 |
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