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kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

🗓️ 28 Feb 2023 11:45:57Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Use-after-free in Linux kernel L2CAP reassembly enables race among flows, risking crash or privilege.

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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2-2022-1888 (ALAS-2022-1888)
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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2022-011 (ALASKERNEL-5.15-2022-011)
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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2022-039 (ALASKERNEL-5.4-2022-039)
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9ppc64lekpatch-patch-5_14_0-162_12_10:1-1.el9_1kpatch-patch-5_14_0-162_12_1-0:1-1.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9x86_64kpatch-patch-5_14_0-162_12_10:1-1.el9_1kpatch-patch-5_14_0-162_12_1-0:1-1.el9_1.x86_64.rpm
Red Hat Enterprise Linux9ppc64lekpatch-patch-5_14_0-162_12_1-debuginfo0:1-1.el9_1kpatch-patch-5_14_0-162_12_1-debuginfo-0:1-1.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9x86_64kpatch-patch-5_14_0-162_12_1-debuginfo0:1-1.el9_1kpatch-patch-5_14_0-162_12_1-debuginfo-0:1-1.el9_1.x86_64.rpm
Red Hat Enterprise Linux9ppc64lekpatch-patch-5_14_0-162_12_1-debugsource0:1-1.el9_1kpatch-patch-5_14_0-162_12_1-debugsource-0:1-1.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9x86_64kpatch-patch-5_14_0-162_12_1-debugsource0:1-1.el9_1kpatch-patch-5_14_0-162_12_1-debugsource-0:1-1.el9_1.x86_64.rpm
Red Hat Enterprise Linux9ppc64lekpatch-patch-5_14_0-162_6_10:1-2.el9_1kpatch-patch-5_14_0-162_6_1-0:1-2.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9x86_64kpatch-patch-5_14_0-162_6_10:1-2.el9_1kpatch-patch-5_14_0-162_6_1-0:1-2.el9_1.x86_64.rpm
Red Hat Enterprise Linux9ppc64lekpatch-patch-5_14_0-162_6_1-debuginfo0:1-2.el9_1kpatch-patch-5_14_0-162_6_1-debuginfo-0:1-2.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9x86_64kpatch-patch-5_14_0-162_6_1-debuginfo0:1-2.el9_1kpatch-patch-5_14_0-162_6_1-debuginfo-0:1-2.el9_1.x86_64.rpm
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28 Jun 2026 12:38Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.15.5 - 7.1
EPSS0.0129
CWE-416
linux kernell2cap reassemblybluetooth securityrace conditionuse after freeprivilege risk
6