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kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp

🗓️ 22 Dec 2025 17:42:52Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 15 Views

Bluetooth L2CAP fix for bad unlock balance when chan_lock is not held during l2cap_disconnect_rsp.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2025:19102)
28 Oct 202500:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : kernel-rt (ALSA-2025:19103)
28 Oct 202500:00
–nessus
nessus
Tenable Nessus		CentOS Linux 7.9 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-whitelists / etc Multiple Vulnerabilities (ciqsa-2026_0653)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8.10 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0601)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8.6 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0011)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8.6 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0589)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0636)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (crlsa-2025_19102)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc Multiple Vulnerabilities (crlsa-2025_19103)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 9.2 [CIQ] Security Update: bpftool / kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ciqsa-2026_0393)
1 Oct 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64bpftool3.10.0-1160.144.1.el7bpftool-3.10.0-1160.144.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lebpftool3.10.0-1160.144.1.el7bpftool-3.10.0-1160.144.1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xbpftool3.10.0-1160.144.1.el7bpftool-3.10.0-1160.144.1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64bpftool3.10.0-1160.144.1.el7bpftool-3.10.0-1160.144.1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64bpftool-debuginfo3.10.0-1160.144.1.el7bpftool-debuginfo-3.10.0-1160.144.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lebpftool-debuginfo3.10.0-1160.144.1.el7bpftool-debuginfo-3.10.0-1160.144.1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xbpftool-debuginfo3.10.0-1160.144.1.el7bpftool-debuginfo-3.10.0-1160.144.1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64bpftool-debuginfo3.10.0-1160.144.1.el7bpftool-debuginfo-3.10.0-1160.144.1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64kernel3.10.0-1160.144.1.el7kernel-3.10.0-1160.144.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel3.10.0-1160.144.1.el7kernel-3.10.0-1160.144.1.el7.ppc64le.rpm
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19 Aug 2026 21:05Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.15.5 - 8.8
EPSS0.00215
SSVC
CWE-832
bluetoothl2capl2cap disconnectbad unlock balancechannel lockscid lookupl2cap disconnect responsekernel security
15