fkie_cve-2025-40001
Vulnerability from fkie_nvd
Published
2025-10-18 08:15
Modified
2025-10-29 14:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: mvsas: Fix use-after-free bugs in mvs_work_queue During the detaching of Marvell's SAS/SATA controller, the original code calls cancel_delayed_work() in mvs_free() to cancel the delayed work item mwq->work_q. However, if mwq->work_q is already running, the cancel_delayed_work() may fail to cancel it. This can lead to use-after-free scenarios where mvs_free() frees the mvs_info while mvs_work_queue() is still executing and attempts to access the already-freed mvs_info. A typical race condition is illustrated below: CPU 0 (remove) | CPU 1 (delayed work callback) mvs_pci_remove() | mvs_free() | mvs_work_queue() cancel_delayed_work() | kfree(mvi) | | mvi-> // UAF Replace cancel_delayed_work() with cancel_delayed_work_sync() to ensure that the delayed work item is properly canceled and any executing delayed work item completes before the mvs_info is deallocated. This bug was found by static analysis.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/00d3af40b158ebf7c7db2b3bbb1598a54bf28127
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c90f583d679c81a5a607a6ae0051251b6dee35b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60cd16a3b7439ccb699d0bf533799eeb894fd217
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ba7e73cafd155a5d3abf560d315f0bab2b9d89f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a6f68f219d4d4b92d7c781708d4afc4cc42961ec
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aacd1777d4a795c387a20b9ca776e2c1225d05d7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2c35cb2a31844f84f21ab364b38b4309d756d42
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/feb946d2fc9dc754bf3d594d42cd228860ff8647
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mvsas: Fix use-after-free bugs in mvs_work_queue\n\nDuring the detaching of Marvell\u0027s SAS/SATA controller, the original code\ncalls cancel_delayed_work() in mvs_free() to cancel the delayed work\nitem mwq-\u003ework_q. However, if mwq-\u003ework_q is already running, the\ncancel_delayed_work() may fail to cancel it. This can lead to\nuse-after-free scenarios where mvs_free() frees the mvs_info while\nmvs_work_queue() is still executing and attempts to access the\nalready-freed mvs_info.\n\nA typical race condition is illustrated below:\n\nCPU 0 (remove)            | CPU 1 (delayed work callback)\nmvs_pci_remove()          |\n  mvs_free()              | mvs_work_queue()\n    cancel_delayed_work() |\n      kfree(mvi)          |\n                          |   mvi-\u003e // UAF\n\nReplace cancel_delayed_work() with cancel_delayed_work_sync() to ensure\nthat the delayed work item is properly canceled and any executing\ndelayed work item completes before the mvs_info is deallocated.\n\nThis bug was found by static analysis."
    }
  ],
  "id": "CVE-2025-40001",
  "lastModified": "2025-10-29T14:15:52.370",
  "metrics": {},
  "published": "2025-10-18T08:15:34.130",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/00d3af40b158ebf7c7db2b3bbb1598a54bf28127"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3c90f583d679c81a5a607a6ae0051251b6dee35b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/60cd16a3b7439ccb699d0bf533799eeb894fd217"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6ba7e73cafd155a5d3abf560d315f0bab2b9d89f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a6f68f219d4d4b92d7c781708d4afc4cc42961ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aacd1777d4a795c387a20b9ca776e2c1225d05d7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c2c35cb2a31844f84f21ab364b38b4309d756d42"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/feb946d2fc9dc754bf3d594d42cd228860ff8647"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.