{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53297","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-09-16T08:09:37.993Z","datePublished":"2025-09-16T08:11:29.283Z","dateUpdated":"2026-05-11T19:42:13.206Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:42:13.206Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp\n\nconn->chan_lock isn't acquired before l2cap_get_chan_by_scid,\nif l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance'\nis triggered."}],"affected":[{"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":"f2d38e77aa5f3effc143e7dd24da8acf02925958","lessThan":"5f352a56f0e607e6ff539cbf12156bfd8af232be","status":"affected","versionType":"git"},{"version":"1351551aa9058e07a20a27a158270cf84fcde621","lessThan":"6a27762340ad08643de3bc17fe1646ea489ca2e2","status":"affected","versionType":"git"},{"version":"c02421992505c95c7f3c9ad59ee35e22eac60988","lessThan":"2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d","status":"affected","versionType":"git"},{"version":"d9ba36c22a7bb09d6bac4cc2f243eff05da53f43","lessThan":"55410a9144c76ecda126e6cdec556dfcd8f343b2","status":"affected","versionType":"git"},{"version":"ac6725a634f7e8c0330610a8527f20c730b61115","lessThan":"116b9c002c894097adc2b8684db2d1da4229ed46","status":"affected","versionType":"git"},{"version":"348d446762e7c70778df8bafbdf3fa0df2123f58","lessThan":"fd269a0435f8e9943b7a57c5a59688848d42d449","status":"affected","versionType":"git"},{"version":"a2a9339e1c9deb7e1e079e12e27a0265aea8421a","lessThan":"5134556c9be582793f30695c09d18a26fe1ff2d7","status":"affected","versionType":"git"},{"version":"a2a9339e1c9deb7e1e079e12e27a0265aea8421a","lessThan":"25e97f7b1866e6b8503be349eeea44bb52d661ce","status":"affected","versionType":"git"},{"version":"d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284","status":"affected","versionType":"git"}]},{"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":"6.3","status":"affected"},{"version":"0","lessThan":"6.3","status":"unaffected","versionType":"semver"},{"version":"4.14.316","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.284","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.244","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.181","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.113","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.30","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.3.4","lessThanOrEqual":"6.3.*","status":"unaffected","versionType":"semver"},{"version":"6.4","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.313","versionEndExcluding":"4.14.316"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.281","versionEndExcluding":"4.19.284"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.241","versionEndExcluding":"5.4.244"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.178","versionEndExcluding":"5.10.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.108","versionEndExcluding":"5.15.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.25","versionEndExcluding":"6.1.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.3.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be"},{"url":"https://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2"},{"url":"https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d"},{"url":"https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2"},{"url":"https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46"},{"url":"https://git.kernel.org/stable/c/fd269a0435f8e9943b7a57c5a59688848d42d449"},{"url":"https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7"},{"url":"https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce"}],"title":"Bluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2023-53297","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T18:12:33.884627Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","description":"CWE-noinfo Not enough information"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-14T18:12:56.873Z"}}]}}