CVE-2024-50255
Vulnerability from cvelistv5
Published
2024-11-09 10:15
Modified
2024-12-19 09:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs Fix __hci_cmd_sync_sk() to return not NULL for unknown opcodes. __hci_cmd_sync_sk() returns NULL if a command returns a status event. However, it also returns NULL where an opcode doesn't exist in the hci_cc table because hci_cmd_complete_evt() assumes status = skb->data[0] for unknown opcodes. This leads to null-ptr-deref in cmd_sync for HCI_OP_READ_LOCAL_CODECS as there is no hci_cc for HCI_OP_READ_LOCAL_CODECS, which always assumes status = skb->data[0]. KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077] CPU: 1 PID: 2000 Comm: kworker/u9:5 Not tainted 6.9.0-ga6bcb805883c-dirty #10 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: hci7 hci_power_on RIP: 0010:hci_read_supported_codecs+0xb9/0x870 net/bluetooth/hci_codec.c:138 Code: 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 RSP: 0018:ffff888120bafac8 EFLAGS: 00010212 RAX: 0000000000000000 RBX: 000000000000000e RCX: ffff8881173f0040 RDX: dffffc0000000000 RSI: ffffffffa58496c0 RDI: ffff88810b9ad1e4 RBP: ffff88810b9ac000 R08: ffffffffa77882a7 R09: 1ffffffff4ef1054 R10: dffffc0000000000 R11: fffffbfff4ef1055 R12: 0000000000000070 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88810b9ac000 FS: 0000000000000000(0000) GS:ffff8881f6c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ddaa3439e CR3: 0000000139764003 CR4: 0000000000770ef0 PKRU: 55555554 Call Trace: <TASK> hci_read_local_codecs_sync net/bluetooth/hci_sync.c:4546 [inline] hci_init_stage_sync net/bluetooth/hci_sync.c:3441 [inline] hci_init4_sync net/bluetooth/hci_sync.c:4706 [inline] hci_init_sync net/bluetooth/hci_sync.c:4742 [inline] hci_dev_init_sync net/bluetooth/hci_sync.c:4912 [inline] hci_dev_open_sync+0x19a9/0x2d30 net/bluetooth/hci_sync.c:4994 hci_dev_do_open net/bluetooth/hci_core.c:483 [inline] hci_power_on+0x11e/0x560 net/bluetooth/hci_core.c:1015 process_one_work kernel/workqueue.c:3267 [inline] process_scheduled_works+0x8ef/0x14f0 kernel/workqueue.c:3348 worker_thread+0x91f/0xe50 kernel/workqueue.c:3429 kthread+0x2cb/0x360 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Impacted products
Vendor Product Version
Linux Linux Version: 5.17
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5d9054b9f769a8e124c4fa02072437c864726baf",
              "status": "affected",
              "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873",
              "versionType": "git"
            },
            {
              "lessThan": "1f1764466c33a4466363b821a25cd65c46a5a793",
              "status": "affected",
              "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873",
              "versionType": "git"
            },
            {
              "lessThan": "48d7c24b7ef6417c68f206566364db1f8087bb23",
              "status": "affected",
              "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873",
              "versionType": "git"
            },
            {
              "lessThan": "1e67d8641813f1876a42eeb4f532487b8a7fb0a8",
              "status": "affected",
              "version": "abfeea476c68afea54c9c050a2d3b19d5d2ee873",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.116",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.60",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "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\u0027t exist in the\nhci_cc table because hci_cmd_complete_evt() assumes status = skb-\u003edata[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-\u003edata[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 \u003c0f\u003e 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 \u003cTASK\u003e\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"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:36:39.356Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "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-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50255",
    "datePublished": "2024-11-09T10:15:08.658Z",
    "dateReserved": "2024-10-21T19:36:19.980Z",
    "dateUpdated": "2024-12-19T09:36:39.356Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50255\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:11.183\",\"lastModified\":\"2024-11-14T18:10:12.383\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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\u0027t exist in the\\nhci_cc table because hci_cmd_complete_evt() assumes status = skb-\u003edata[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-\u003edata[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 \u003c0f\u003e 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 \u003cTASK\u003e\\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\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: hci: corregir null-ptr-deref en hci_read_supported_codecs Corregir __hci_cmd_sync_sk() para que no devuelva NULL para c\u00f3digos de operaci\u00f3n desconocidos. __hci_cmd_sync_sk() devuelve NULL si un comando devuelve un evento de estado. Sin embargo, tambi\u00e9n devuelve NULL cuando no existe un c\u00f3digo de operaci\u00f3n en la tabla hci_cc porque hci_cmd_complete_evt() asume status = skb-\u0026gt;data[0] para c\u00f3digos de operaci\u00f3n desconocidos. Esto lleva a null-ptr-deref en cmd_sync para HCI_OP_READ_LOCAL_CODECS ya que no hay hci_cc para HCI_OP_READ_LOCAL_CODECS, que siempre asume status = skb-\u0026gt;data[0]. KASAN: null-ptr-deref en el rango [0x0000000000000070-0x0000000000000077] CPU: 1 PID: 2000 Comm: kworker/u9:5 No contaminado 6.9.0-ga6bcb805883c-dirty #10 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Cola de trabajo: hci7 hci_power_on RIP: 0010:hci_read_supported_codecs+0xb9/0x870 net/bluetooth/hci_codec.c:138 C\u00f3digo: 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 \u0026lt;0f\u0026gt; b6 04 13 84 c0 0f 85 82 06 00 00 41 83 3c 24 02 77 0a e8 bf 78 RSP: 0018:ffff888120bafac8 EFLAGS: 00010212 RAX: 000000000000000 RBX: 000000000000000e RCX: ffff8881173f0040 RDX: dffffc0000000000 RSI: ffffffffa58496c0 RDI: ffff88810b9ad1e4 RBP: ffff88810b9ac000 R08: ffffffffa77882a7 R09: 1ffffffff4ef1054 R10: dffffc0000000000 R11: fffffbfff4ef1055 R12: 0000000000000070 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88810b9ac000 FS: 0000000000000000(0000) GS:ffff8881f6c00000(0000) knlGS:00000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ddaa3439e CR3: 0000000139764003 CR4: 0000000000770ef0 PKRU: 55555554 Seguimiento de llamadas:  hci_read_local_codecs_sync net/bluetooth/hci_sync.c:4546 [en l\u00ednea] hci_init_stage_sync net/bluetooth/hci_sync.c:3441 [en l\u00ednea] hci_init4_sync net/bluetooth/hci_sync.c:4706 [en l\u00ednea] hci_init_sync net/bluetooth/hci_sync.c:4742 [en l\u00ednea] hci_dev_init_sync net/bluetooth/hci_sync.c:4912 [en l\u00ednea] hci_dev_open_sync+0x19a9/0x2d30 net/bluetooth/hci_sync.c:4994 hci_dev_do_open net/bluetooth/hci_core.c:483 [en l\u00ednea] hci_power_on+0x11e/0x560 net/bluetooth/hci_core.c:1015 proceso_uno_trabajo kernel/workqueue.c:3267 [en l\u00ednea] proceso_trabajos_programados+0x8ef/0x14f0 kernel/workqueue.c:3348 subproceso de trabajo+0x91f/0xe50 kernel/workqueue.c:3429 subproceso de trabajo+0x2cb/0x360 kernel/kthread.c:388 ret_de_bifurcaci\u00f3n+0x4d/0x80 arch/x86/kernel/process.c:147 ret_de_bifurcaci\u00f3n_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"6.1.116\",\"matchCriteriaId\":\"252AD171-75DB-4B57-93D9-E5FBF4064DC7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.60\",\"matchCriteriaId\":\"75088E5E-2400-4D20-915F-7A65C55D9CCD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.7\",\"matchCriteriaId\":\"E96F53A4-5E87-4A70-BD9A-BC327828D57F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1e67d8641813f1876a42eeb4f532487b8a7fb0a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1f1764466c33a4466363b821a25cd65c46a5a793\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/48d7c24b7ef6417c68f206566364db1f8087bb23\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5d9054b9f769a8e124c4fa02072437c864726baf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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