{"id":"CVE-2024-50044","revision":"044f5b4dcade4dad8326e43606c88516","records":[{"revision":"044f5b4dcade4dad8326e43606c88516","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-50044","aliases":[],"title":"Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\n\nrfcomm_sk_state_change attempts to use sock_lock so it must never be\ncalled with it locked but rfcomm_sock_ioctl always attempt to lock it\ncausing the following trace:\n\n======================================================\nWARNING: possible circular locking dependency detected\n6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted\n------------------------------------------------------\nsyz-executor386/5093 is trying to acquire lock:\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\n\nbut task is already holding lock:\nffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491","state":0,"publishedAt":"2024-10-21T19:39:42.43+00:00","modifiedAt":"2026-10-15T00:56:43.283+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/bluetooth/rfcomm/sock.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"b77b3fb12fd483cae7c28648903b1d8a6b275f01\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"869c6ee62ab8f01bf2419e45326642be5c9b670a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"ef44274dae9b0a90d1a97ce8b242a3b8243a7745\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"496b2ab0fd10f205e08909a125485fdc98843dbe\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"ced98072d3511b232ae1d3347945f35f30c0e303\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"38b2d5a57d125e1c17661b8308c0240c4a43b534\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"4cb9807c9b53bf1e5560420d26f319f528b50268\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3241ad820dbb172021e0268b5611031991431626\",\n                            \"lessThan\": \"08d1914293dae38350b8088980e59fbc699a72fe\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/bluetooth/rfcomm/sock.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.27\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.27\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"4.19.323\",\n                            \"lessThanOrEqual\": \"4.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.285\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.227\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.168\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.113\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.57\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.11.4\",\n                            \"lessThanOrEqual\": \"6.11.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01","https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a","https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745","https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe","https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303","https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534","https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268","https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-50044","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-50044","identifiers":["CVE-2024-50044"]},"retained":false,"historicalAffected":[]}],"coverage":[]}