{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50255", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.980Z", "datePublished": "2024-11-09T10:15:08.658Z", "dateUpdated": "2026-05-11T20:48:34.942Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:48:34.942Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs\n\nFix __hci_cmd_sync_sk() to return not NULL for unknown opcodes.\n\n__hci_cmd_sync_sk() returns NULL if a command returns a status event.\nHowever, it also returns NULL where an opcode doesn't exist in the\nhci_cc table because hci_cmd_complete_evt() assumes status = skb->data[0]\nfor unknown opcodes.\nThis leads to null-ptr-deref in cmd_sync for HCI_OP_READ_LOCAL_CODECS as\nthere is no hci_cc for HCI_OP_READ_LOCAL_CODECS, which always assumes\nstatus = skb->data[0].\n\nKASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]\nCPU: 1 PID: 2000 Comm: kworker/u9:5 Not tainted 6.9.0-ga6bcb805883c-dirty #10\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\nWorkqueue: hci7 hci_power_on\nRIP: 0010:hci_read_supported_codecs+0xb9/0x870 net/bluetooth/hci_codec.c:138\nCode: 08 48 89 ef e8 b8 c1 8f fd 48 8b 75 00 e9 96 00 00 00 49 89 c6 48 ba 00 00 00 00 00 fc ff df 4c 8d 60 70 4c 89 e3 48 c1 eb 03 <0f> b6 04 13 84 c0 0f 85 82 06 00 00 41 83 3c 24 02 77 0a e8 bf 78\nRSP: 0018:ffff888120bafac8 EFLAGS: 00010212\nRAX: 0000000000000000 RBX: 000000000000000e RCX: ffff8881173f0040\nRDX: dffffc0000000000 RSI: ffffffffa58496c0 RDI: ffff88810b9ad1e4\nRBP: ffff88810b9ac000 R08: ffffffffa77882a7 R09: 1ffffffff4ef1054\nR10: dffffc0000000000 R11: fffffbfff4ef1055 R12: 0000000000000070\nR13: 0000000000000000 R14: 0000000000000000 R15: ffff88810b9ac000\nFS: 0000000000000000(0000) GS:ffff8881f6c00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f6ddaa3439e CR3: 0000000139764003 CR4: 0000000000770ef0\nPKRU: 55555554\nCall Trace:\n \n hci_read_local_codecs_sync net/bluetooth/hci_sync.c:4546 [inline]\n hci_init_stage_sync net/bluetooth/hci_sync.c:3441 [inline]\n hci_init4_sync net/bluetooth/hci_sync.c:4706 [inline]\n hci_init_sync net/bluetooth/hci_sync.c:4742 [inline]\n hci_dev_init_sync net/bluetooth/hci_sync.c:4912 [inline]\n hci_dev_open_sync+0x19a9/0x2d30 net/bluetooth/hci_sync.c:4994\n hci_dev_do_open net/bluetooth/hci_core.c:483 [inline]\n hci_power_on+0x11e/0x560 net/bluetooth/hci_core.c:1015\n process_one_work kernel/workqueue.c:3267 [inline]\n process_scheduled_works+0x8ef/0x14f0 kernel/workqueue.c:3348\n worker_thread+0x91f/0xe50 kernel/workqueue.c:3429\n kthread+0x2cb/0x360 kernel/kthread.c:388\n ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/bluetooth/hci_sync.c" ], "versions": [ { "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873", "lessThan": "5d9054b9f769a8e124c4fa02072437c864726baf", "status": "affected", "versionType": "git" }, { "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873", "lessThan": "1f1764466c33a4466363b821a25cd65c46a5a793", "status": "affected", "versionType": "git" }, { "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873", "lessThan": "48d7c24b7ef6417c68f206566364db1f8087bb23", "status": "affected", "versionType": "git" }, { "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873", "lessThan": "1e67d8641813f1876a42eeb4f532487b8a7fb0a8", "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/hci_sync.c" ], "versions": [ { "version": "5.17", "status": "affected" }, { "version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.116", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.60", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.7", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "5.17", "versionEndExcluding": "6.1.116" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.6.60" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.11.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5d9054b9f769a8e124c4fa02072437c864726baf" }, { "url": "https://git.kernel.org/stable/c/1f1764466c33a4466363b821a25cd65c46a5a793" }, { "url": "https://git.kernel.org/stable/c/48d7c24b7ef6417c68f206566364db1f8087bb23" }, { "url": "https://git.kernel.org/stable/c/1e67d8641813f1876a42eeb4f532487b8a7fb0a8" } ], "title": "Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs", "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-2024-50255", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:15:37.345416Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:17:24.569Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:27:34.687Z" } } ] } }