CVE-2024-42141 (GCVE-0-2024-42141)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:46 – Updated: 2026-05-23 15:52
VLAI
Title
Bluetooth: ISO: Check socket flag instead of hcon
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Check socket flag instead of hcon This fixes the following Smatch static checker warning: net/bluetooth/iso.c:1364 iso_sock_recvmsg() error: we previously assumed 'pi->conn->hcon' could be null (line 1359) net/bluetooth/iso.c 1347 static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg, 1348 size_t len, int flags) 1349 { 1350 struct sock *sk = sock->sk; 1351 struct iso_pinfo *pi = iso_pi(sk); 1352 1353 BT_DBG("sk %p", sk); 1354 1355 if (test_and_clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { 1356 lock_sock(sk); 1357 switch (sk->sk_state) { 1358 case BT_CONNECT2: 1359 if (pi->conn->hcon && ^^^^^^^^^^^^^^ If ->hcon is NULL 1360 test_bit(HCI_CONN_PA_SYNC, &pi->conn->hcon->flags)) { 1361 iso_conn_big_sync(sk); 1362 sk->sk_state = BT_LISTEN; 1363 } else { --> 1364 iso_conn_defer_accept(pi->conn->hcon); ^^^^^^^^^^^^^^ then we're toast 1365 sk->sk_state = BT_CONFIG; 1366 } 1367 release_sock(sk); 1368 return 0; 1369 case BT_CONNECTED: 1370 if (test_bit(BT_SK_PA_SYNC,
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:15 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fbdc4bc47268953c80853489f696e02d61f9a2c6 , < 045669710464a21c67e690ef14698fd71857cb11 (git)
Affected: fbdc4bc47268953c80853489f696e02d61f9a2c6 , < 33fabef489169c6db87843ef23351ed0d5e51ad8 (git)
Affected: fbdc4bc47268953c80853489f696e02d61f9a2c6 , < 596b6f081336e77764ca35cfeab66d0fcdbe544e (git)
Affected: c03a10bd5b6ccb22921e04bcddc987410df7e7a9 (git)
Affected: 6.5.12 , < 6.6 (semver)
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Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.39 , ≤ 6.6.* (semver)
Unaffected: 6.9.9 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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          "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: ISO: Verifique el indicador de socket en lugar de hcon. Esto corrige la siguiente advertencia del verificador est\u00e1tico de Smatch: net/bluetooth/iso.c:1364 iso_sock_recvmsg() error: previamente asumimos \u0027pi -\u0026gt;conn-\u0026gt;hcon\u0027 podr\u00eda ser nulo (l\u00ednea 1359) net/bluetooth/iso.c 1347 static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg, 1348 size_t len, int flags) 1349 { 1350 struct sock *sk = calcet\u00edn-\u0026gt;sk; 1351 estructura iso_pinfo *pi = iso_pi(sk); 1352 1353 BT_DBG(\"sk%p\",sk); 1354 1355 if (test_and_clear_bit(BT_SK_DEFER_SETUP, \u0026amp;bt_sk(sk)-\u0026gt;flags)) { 1356 lock_sock(sk); 1357 interruptor (sk-\u0026gt;sk_state) { 1358 caso BT_CONNECT2: 1359 si (pi-\u0026gt;conn-\u0026gt;hcon \u0026amp;\u0026amp; ^^^^^^^^^^^^^^ Si -\u0026gt;hcon es NULL 1360 test_bit(HCI_CONN_PA_SYNC, \u0026amp;pi -\u0026gt;conn-\u0026gt;hcon-\u0026gt;flags)) { 1361 iso_conn_big_sync(sk); 1362 sk-\u0026gt;sk_state = BT_LISTEN; 1363 } else { --\u0026gt; 1364 iso_conn_defer_accept(pi-\u0026gt;conn-\u0026gt;hcon); ^^^^^^^^^^^^^^ entonces estamos 1365 sk-\u0026gt;sk_state = BT_CONFIG; 1366 } 1367 liberaci\u00f3n_sock(sk); 1368 devuelve 0; 1369 caso BT_CONNECTED: 1370 si (test_bit(BT_SK_PA_SYNC,"
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: Check socket flag instead of hcon\n\nThis fixes the following Smatch static checker warning:\n\nnet/bluetooth/iso.c:1364 iso_sock_recvmsg()\nerror: we previously assumed \u0027pi-\u003econn-\u003ehcon\u0027 could be null (line 1359)\n\nnet/bluetooth/iso.c\n1347 static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg,\n1348                             size_t len, int flags)\n1349 {\n1350         struct sock *sk = sock-\u003esk;\n1351         struct iso_pinfo *pi = iso_pi(sk);\n1352\n1353         BT_DBG(\"sk %p\", sk);\n1354\n1355         if (test_and_clear_bit(BT_SK_DEFER_SETUP,\n                                      \u0026bt_sk(sk)-\u003eflags)) {\n1356                 lock_sock(sk);\n1357                 switch (sk-\u003esk_state) {\n1358                 case BT_CONNECT2:\n1359                         if (pi-\u003econn-\u003ehcon \u0026\u0026\n                                     ^^^^^^^^^^^^^^ If -\u003ehcon is NULL\n\n1360                             test_bit(HCI_CONN_PA_SYNC,\n                                         \u0026pi-\u003econn-\u003ehcon-\u003eflags)) {\n1361                                 iso_conn_big_sync(sk);\n1362                                 sk-\u003esk_state = BT_LISTEN;\n1363                         } else {\n--\u003e 1364                         iso_conn_defer_accept(pi-\u003econn-\u003ehcon);\n                                                       ^^^^^^^^^^^^^^\n                                                       then we\u0027re toast\n\n1365                                 sk-\u003esk_state = BT_CONFIG;\n1366                         }\n1367                         release_sock(sk);\n1368                         return 0;\n1369                 case BT_CONNECTED:\n1370                         if (test_bit(BT_SK_PA_SYNC,"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: ISO: Verifique el indicador de socket en lugar de hcon. Esto corrige la siguiente advertencia del verificador est\u00e1tico de Smatch: net/bluetooth/iso.c:1364 iso_sock_recvmsg() error: previamente asumimos \u0027pi -\u0026gt;conn-\u0026gt;hcon\u0027 podr\u00eda ser nulo (l\u00ednea 1359) net/bluetooth/iso.c 1347 static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg, 1348 size_t len, int flags) 1349 { 1350 struct sock *sk = calcet\u00edn-\u0026gt;sk; 1351 estructura iso_pinfo *pi = iso_pi(sk); 1352 1353 BT_DBG(\"sk%p\",sk); 1354 1355 if (test_and_clear_bit(BT_SK_DEFER_SETUP, \u0026amp;bt_sk(sk)-\u0026gt;flags)) { 1356 lock_sock(sk); 1357 interruptor (sk-\u0026gt;sk_state) { 1358 caso BT_CONNECT2: 1359 si (pi-\u0026gt;conn-\u0026gt;hcon \u0026amp;\u0026amp; ^^^^^^^^^^^^^^ Si -\u0026gt;hcon es NULL 1360 test_bit(HCI_CONN_PA_SYNC, \u0026amp;pi -\u0026gt;conn-\u0026gt;hcon-\u0026gt;flags)) { 1361 iso_conn_big_sync(sk); 1362 sk-\u0026gt;sk_state = BT_LISTEN; 1363 } else { --\u0026gt; 1364 iso_conn_defer_accept(pi-\u0026gt;conn-\u0026gt;hcon); ^^^^^^^^^^^^^^ entonces estamos 1365 sk-\u0026gt;sk_state = BT_CONFIG; 1366 } 1367 liberaci\u00f3n_sock(sk); 1368 devuelve 0; 1369 caso BT_CONNECTED: 1370 si (test_bit(BT_SK_PA_SYNC,"
          }
        ],
        "id": "CVE-2024-42141",
        "lastModified": "2026-06-17T07:48:55.127",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: ISO: Check socket flag instead of hcon",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-42141",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-42141.json",
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    },
    "vulnrichment": {
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              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: Check socket flag instead of hcon\n\nThis fixes the following Smatch static checker warning:\n\nnet/bluetooth/iso.c:1364 iso_sock_recvmsg()\nerror: we previously assumed \u0027pi-\u003econn-\u003ehcon\u0027 could be null (line 1359)\n\nnet/bluetooth/iso.c\n1347 static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg,\n1348                             size_t len, int flags)\n1349 {\n1350         struct sock *sk = sock-\u003esk;\n1351         struct iso_pinfo *pi = iso_pi(sk);\n1352\n1353         BT_DBG(\"sk %p\", sk);\n1354\n1355         if (test_and_clear_bit(BT_SK_DEFER_SETUP,\n                                      \u0026bt_sk(sk)-\u003eflags)) {\n1356                 lock_sock(sk);\n1357                 switch (sk-\u003esk_state) {\n1358                 case BT_CONNECT2:\n1359                         if (pi-\u003econn-\u003ehcon \u0026\u0026\n                                     ^^^^^^^^^^^^^^ If -\u003ehcon is NULL\n\n1360                             test_bit(HCI_CONN_PA_SYNC,\n                                         \u0026pi-\u003econn-\u003ehcon-\u003eflags)) {\n1361                                 iso_conn_big_sync(sk);\n1362                                 sk-\u003esk_state = BT_LISTEN;\n1363                         } else {\n--\u003e 1364                         iso_conn_defer_accept(pi-\u003econn-\u003ehcon);\n                                                       ^^^^^^^^^^^^^^\n                                                       then we\u0027re toast\n\n1365                                 sk-\u003esk_state = BT_CONFIG;\n1366                         }\n1367                         release_sock(sk);\n1368                         return 0;\n1369                 case BT_CONNECTED:\n1370                         if (test_bit(BT_SK_PA_SYNC,"
            }
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            "dateUpdated": "2026-05-23T15:52:23.995Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        "datePublished": "2024-07-30T07:46:35.174Z",
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        "state": "PUBLISHED"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.