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Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2023-53827

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/l2cap_core.c"
                    ],
                    "versions": [
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "f2d38e77aa5f3effc143e7dd24da8acf02925958",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "1351551aa9058e07a20a27a158270cf84fcde621",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "c02421992505c95c7f3c9ad59ee35e22eac60988",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "d9ba36c22a7bb09d6bac4cc2f243eff05da53f43",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "ac6725a634f7e8c0330610a8527f20c730b61115",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "348d446762e7c70778df8bafbdf3fa0df2123f58",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "61d6ef3e3408cdf7e622646fb90a9f7f9560b943",
                            "lessThan": "a2a9339e1c9deb7e1e079e12e27a0265aea8421a",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/l2cap_core.c"
                    ],
                    "versions": [
                        {
                            "version": "3.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.313",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.281",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.241",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.178",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.108",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.25",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.12",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

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Sources read 9 Nov 13:58 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current