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CVE-2024-56623 (GCVE-0-2024-56623)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:51 – Updated: 2026-05-11 20:56
VLAI
Title
scsi: qla2xxx: Fix use after free on unload
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix use after free on unload System crash is observed with stack trace warning of use after free. There are 2 signals to tell dpc_thread to terminate (UNLOADING flag and kthread_stop). On setting the UNLOADING flag when dpc_thread happens to run at the time and sees the flag, this causes dpc_thread to exit and clean up itself. When kthread_stop is called for final cleanup, this causes use after free. Remove UNLOADING signal to terminate dpc_thread. Use the kthread_stop as the main signal to exit dpc_thread. [596663.812935] kernel BUG at mm/slub.c:294! [596663.812950] invalid opcode: 0000 [#1] SMP PTI [596663.812957] CPU: 13 PID: 1475935 Comm: rmmod Kdump: loaded Tainted: G IOE --------- - - 4.18.0-240.el8.x86_64 #1 [596663.812960] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 08/20/2012 [596663.812974] RIP: 0010:__slab_free+0x17d/0x360 ... [596663.813008] Call Trace: [596663.813022] ? __dentry_kill+0x121/0x170 [596663.813030] ? _cond_resched+0x15/0x30 [596663.813034] ? _cond_resched+0x15/0x30 [596663.813039] ? wait_for_completion+0x35/0x190 [596663.813048] ? try_to_wake_up+0x63/0x540 [596663.813055] free_task+0x5a/0x60 [596663.813061] kthread_stop+0xf3/0x100 [596663.813103] qla2x00_remove_one+0x284/0x440 [qla2xxx]
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-04 18:05 UTC
CWE
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 , < 12f04fc8580eafb0510f805749553eb6213f323e (git)
Affected: a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 , < ca36d9d53745d5ec8946ef85006d4da605ea7c54 (git)
Affected: a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 , < b3e6f25176f248762a24d25ab8cf8c5e90874f80 (git)
Affected: a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 , < 15369e774f27ec790f207de87c0b541e3f90b22d (git)
Affected: a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 , < 6abf16d3c915b2feb68c1c8b25fcb71b13f98478 (git)
Affected: a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 , < 07c903db0a2ff84b68efa1a74a4de353ea591eb0 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 5.10.231 , ≤ 5.10.* (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.66 , ≤ 6.6.* (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: qla2xxx: Se corrige el use-after-free en la descarga Se observa un fallo del sistema con una advertencia de seguimiento de la pila de use-after-free. Hay 2 se\u00f1ales para indicar a dpc_thread que finalice (indicador UNLOADING y kthread_stop). Al establecer el indicador UNLOADING cuando dpc_thread se est\u00e1 ejecutando en ese momento y ve el indicador, esto hace que dpc_thread salga y se limpie a s\u00ed mismo. Cuando se llama a kthread_stop para la desinfecci\u00f3n final, esto provoca el use-after-free. Eliminar la se\u00f1al UNLOADING para finalizar dpc_thread. Usar kthread_stop como la se\u00f1al principal para salir de dpc_thread. [596663.812935] \u00a1ERROR del kernel en mm/slub.c:294! [596663.812950] C\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] SMP PTI [596663.812957] CPU: 13 PID: 1475935 Comm: rmmod Kdump: cargado Contaminado: G IOE --------- - - 4.18.0-240.el8.x86_64 #1 [596663.812960] Nombre del hardware: HP ProLiant DL380p Gen8, BIOS P70 20/08/2012 [596663.812974] RIP: 0010:__slab_free+0x17d/0x360 ... [596663.813008] Seguimiento de llamadas: [596663.813022] ? esperar_a_finalizaci\u00f3n+0x35/0x190 [596663.813048] ? intentar_activar+0x63/0x540 [596663.813055] tarea_libre+0x5a/0x60 [596663.813061] kthread_stop+0xf3/0x100 [596663.813103] qla2x00_eliminar_uno+0x284/0x440 [qla2xxx]"
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                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.5",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13",
                      "versionStartIncluding": "4.8",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix use after free on unload\n\nSystem crash is observed with stack trace warning of use after\nfree. There are 2 signals to tell dpc_thread to terminate (UNLOADING\nflag and kthread_stop).\n\nOn setting the UNLOADING flag when dpc_thread happens to run at the time\nand sees the flag, this causes dpc_thread to exit and clean up\nitself. When kthread_stop is called for final cleanup, this causes use\nafter free.\n\nRemove UNLOADING signal to terminate dpc_thread.  Use the kthread_stop\nas the main signal to exit dpc_thread.\n\n[596663.812935] kernel BUG at mm/slub.c:294!\n[596663.812950] invalid opcode: 0000 [#1] SMP PTI\n[596663.812957] CPU: 13 PID: 1475935 Comm: rmmod Kdump: loaded Tainted: G          IOE    --------- -  - 4.18.0-240.el8.x86_64 #1\n[596663.812960] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 08/20/2012\n[596663.812974] RIP: 0010:__slab_free+0x17d/0x360\n\n...\n[596663.813008] Call Trace:\n[596663.813022]  ? __dentry_kill+0x121/0x170\n[596663.813030]  ? _cond_resched+0x15/0x30\n[596663.813034]  ? _cond_resched+0x15/0x30\n[596663.813039]  ? wait_for_completion+0x35/0x190\n[596663.813048]  ? try_to_wake_up+0x63/0x540\n[596663.813055]  free_task+0x5a/0x60\n[596663.813061]  kthread_stop+0xf3/0x100\n[596663.813103]  qla2x00_remove_one+0x284/0x440 [qla2xxx]"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-21T09:13:43.332Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/12f04fc8580eafb0510f805749553eb6213f323e"
            },
            {
              "url": "https://git.kernel.org/stable/c/ca36d9d53745d5ec8946ef85006d4da605ea7c54"
            },
            {
              "url": "https://git.kernel.org/stable/c/b3e6f25176f248762a24d25ab8cf8c5e90874f80"
            },
            {
              "url": "https://git.kernel.org/stable/c/15369e774f27ec790f207de87c0b541e3f90b22d"
            },
            {
              "url": "https://git.kernel.org/stable/c/6abf16d3c915b2feb68c1c8b25fcb71b13f98478"
            },
            {
              "url": "https://git.kernel.org/stable/c/07c903db0a2ff84b68efa1a74a4de353ea591eb0"
            }
          ],
          "title": "scsi: qla2xxx: Fix use after free on unload",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-56623",
        "datePublished": "2024-12-27T14:51:26.484Z",
        "dateReserved": "2024-12-27T14:03:06.017Z",
        "dateUpdated": "2025-11-03T20:51:12.545Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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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.
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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.


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