{"id":"CVE-2022-49139","state":"PUBLISHED","title":"Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: fix null ptr deref on hci_sync_conn_complete_evt\n\nThis event is just specified for SCO and eSCO link types.\nOn the reception of a HCI_Synchronous_Connection_Complete for a BDADDR\nof an existing LE connection, LE link type and a status that triggers the\nsecond case of the packet processing a NULL pointer dereference happens,\nas conn->link is NULL.","publishedAt":"2025-02-26T01:55:11.163Z","updatedAt":"2026-05-11T18:53:54.806Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"1c1291a84e94f6501644634c97544bb8291e9a1a","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"0f9db1209f59844839175b5b907d3778cafde93d","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"c1aa0dd52db4ce888be0bd820c3fa918d350ca0b","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"f61c23e73dc653b957781066abfa8105c3fa3f5b","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"3afee2118132e93e5f6fa636dfde86201a860ab3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_event.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"5.4.231","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.167","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.92","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.3","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_event.c"]}],"references":["https://git.kernel.org/stable/c/1c1291a84e94f6501644634c97544bb8291e9a1a","https://git.kernel.org/stable/c/0f9db1209f59844839175b5b907d3778cafde93d","https://git.kernel.org/stable/c/c1aa0dd52db4ce888be0bd820c3fa918d350ca0b","https://git.kernel.org/stable/c/f61c23e73dc653b957781066abfa8105c3fa3f5b","https://git.kernel.org/stable/c/3afee2118132e93e5f6fa636dfde86201a860ab3"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49139.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49139","state":"PUBLISHED","datePublished":"2025-02-26T01:55:11.163Z","dateUpdated":"2026-05-11T18:53:54.806Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:49:39.269Z"},"containers":{"cna":{"title":"Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: fix null ptr deref on hci_sync_conn_complete_evt\n\nThis event is just specified for SCO and eSCO link types.\nOn the reception of a HCI_Synchronous_Connection_Complete for a BDADDR\nof an existing LE connection, LE link type and a status that triggers the\nsecond case of the packet processing a NULL pointer dereference happens,\nas conn->link is NULL."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"1c1291a84e94f6501644634c97544bb8291e9a1a","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"0f9db1209f59844839175b5b907d3778cafde93d","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"c1aa0dd52db4ce888be0bd820c3fa918d350ca0b","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"f61c23e73dc653b957781066abfa8105c3fa3f5b","versionType":"git"},{"version":"efc7688b557dd1be10eead7399b315efcb1dbc74","status":"affected","lessThan":"3afee2118132e93e5f6fa636dfde86201a860ab3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_event.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"5.4.231","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.167","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.92","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.3","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_event.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/1c1291a84e94f6501644634c97544bb8291e9a1a"},{"url":"https://git.kernel.org/stable/c/0f9db1209f59844839175b5b907d3778cafde93d"},{"url":"https://git.kernel.org/stable/c/c1aa0dd52db4ce888be0bd820c3fa918d350ca0b"},{"url":"https://git.kernel.org/stable/c/f61c23e73dc653b957781066abfa8105c3fa3f5b"},{"url":"https://git.kernel.org/stable/c/3afee2118132e93e5f6fa636dfde86201a860ab3"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:53:54.806Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.231"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","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-2022-49139","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:48:01.755849Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:57:02.106Z"}}]}}}