CVE-2025-38239 (GCVE-0-2025-38239)
Vulnerability from cvelistv5
Published
2025-07-09 10:42
Modified
2026-08-05 12:00
Severity ?
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: megaraid_sas: Fix invalid node index On a system with DRAM interleave enabled, out-of-bound access is detected: megaraid_sas 0000:3f:00.0: requested/available msix 128/128 poll_queue 0 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28 index -1 is out of range for type 'cpumask *[1024]' dump_stack_lvl+0x5d/0x80 ubsan_epilogue+0x5/0x2b __ubsan_handle_out_of_bounds.cold+0x46/0x4b megasas_alloc_irq_vectors+0x149/0x190 [megaraid_sas] megasas_probe_one.cold+0xa4d/0x189c [megaraid_sas] local_pci_probe+0x42/0x90 pci_device_probe+0xdc/0x290 really_probe+0xdb/0x340 __driver_probe_device+0x78/0x110 driver_probe_device+0x1f/0xa0 __driver_attach+0xba/0x1c0 bus_for_each_dev+0x8b/0xe0 bus_add_driver+0x142/0x220 driver_register+0x72/0xd0 megasas_init+0xdf/0xff0 [megaraid_sas] do_one_initcall+0x57/0x310 do_init_module+0x90/0x250 init_module_from_file+0x85/0xc0 idempotent_init_module+0x114/0x310 __x64_sys_finit_module+0x65/0xc0 do_syscall_64+0x82/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e Fix it accordingly.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8049da6f3943d0ac51931b8064b2e4769a69a967
Version: 8049da6f3943d0ac51931b8064b2e4769a69a967
Version: 8049da6f3943d0ac51931b8064b2e4769a69a967
Version: 8049da6f3943d0ac51931b8064b2e4769a69a967
Version: 8049da6f3943d0ac51931b8064b2e4769a69a967
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:35:53.326Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/megaraid/megaraid_sas_base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f1064b3532192e987ab17be7281d5fee36fd25e1",
              "status": "affected",
              "version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
              "versionType": "git"
            },
            {
              "lessThan": "bf2c1643abc3b2507d56bb6c22bf9897272f8a35",
              "status": "affected",
              "version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
              "versionType": "git"
            },
            {
              "lessThan": "19a47c966deb36624843b7301f0373a3dc541a05",
              "status": "affected",
              "version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
              "versionType": "git"
            },
            {
              "lessThan": "074efb35552556a4b3b25eedab076d5dc24a8199",
              "status": "affected",
              "version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
              "versionType": "git"
            },
            {
              "lessThan": "752eb816b55adb0673727ba0ed96609a17895654",
              "status": "affected",
              "version": "8049da6f3943d0ac51931b8064b2e4769a69a967",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/megaraid/megaraid_sas_base.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": "6.1.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.143",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.96",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.36",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.5",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: megaraid_sas: Fix invalid node index\n\nOn a system with DRAM interleave enabled, out-of-bound access is\ndetected:\n\nmegaraid_sas 0000:3f:00.0: requested/available msix 128/128 poll_queue 0\n------------[ cut here ]------------\nUBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28\nindex -1 is out of range for type \u0027cpumask *[1024]\u0027\ndump_stack_lvl+0x5d/0x80\nubsan_epilogue+0x5/0x2b\n__ubsan_handle_out_of_bounds.cold+0x46/0x4b\nmegasas_alloc_irq_vectors+0x149/0x190 [megaraid_sas]\nmegasas_probe_one.cold+0xa4d/0x189c [megaraid_sas]\nlocal_pci_probe+0x42/0x90\npci_device_probe+0xdc/0x290\nreally_probe+0xdb/0x340\n__driver_probe_device+0x78/0x110\ndriver_probe_device+0x1f/0xa0\n__driver_attach+0xba/0x1c0\nbus_for_each_dev+0x8b/0xe0\nbus_add_driver+0x142/0x220\ndriver_register+0x72/0xd0\nmegasas_init+0xdf/0xff0 [megaraid_sas]\ndo_one_initcall+0x57/0x310\ndo_init_module+0x90/0x250\ninit_module_from_file+0x85/0xc0\nidempotent_init_module+0x114/0x310\n__x64_sys_finit_module+0x65/0xc0\ndo_syscall_64+0x82/0x170\nentry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFix it accordingly."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is in the megaraid_sas PCI probe path and its consequence is consumed via a local procfs read (`/proc/irq/\u003cN\u003e/affinity_hint`); there is no network-reachable component. Local access to the machine is required.\nAC:L - On a system in the affected configuration the out-of-bounds `node_to_cpumask_map[-1]` read occurs deterministically on every probe, and the follow-on procfs read that dereferences the poisoned pointer is a plain file read the attacker can repeat at will with no race or timing dependency.\nPR:L - The corrupted `irq_desc::affinity_hint` is installed by the system itself during ordinary boot without any attacker action; dereferencing it only requires reading world-readable (0444) `/proc/irq/\u003cN\u003e/affinity_hint`, which any unprivileged local account can do.\nUI:N - The vulnerable state is established automatically at driver probe, and the attacker triggers the dereference himself via a procfs read \u2014 no victim action of any kind is needed.\nS:U - The out-of-bounds read, the wild dereference, and its effects are all confined to the kernel\u0027s own security authority with no crossing into a hypervisor, IOMMU, or other domain.\nC:H - An uncontrolled value adjacent to `node_to_cpumask_map` is treated as a `struct cpumask *`, and `cpumask_copy()` reads `nr_cpu_ids` bits from that arbitrary kernel address straight into a bitmap printed to unprivileged userspace \u2014 kernel memory disclosure, not a strictly bounded few-byte read.\nI:L - No out-of-bounds write or control-flow hijack primitive exists; the only modification is that MSI-X affinity for the eight high-IOPS storage vectors gets programmed from an uncontrolled mask, misconfiguring interrupt routing on the system\u0027s RAID controller.\nA:H - Dereferencing an arbitrary, potentially unmapped value as a cpumask inside `raw_spinlock_irq` with interrupts disabled can oops or panic the kernel, and the storage controller\u0027s interrupt affinity can be left broken."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:00:37.602Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f1064b3532192e987ab17be7281d5fee36fd25e1"
        },
        {
          "url": "https://git.kernel.org/stable/c/bf2c1643abc3b2507d56bb6c22bf9897272f8a35"
        },
        {
          "url": "https://git.kernel.org/stable/c/19a47c966deb36624843b7301f0373a3dc541a05"
        },
        {
          "url": "https://git.kernel.org/stable/c/074efb35552556a4b3b25eedab076d5dc24a8199"
        },
        {
          "url": "https://git.kernel.org/stable/c/752eb816b55adb0673727ba0ed96609a17895654"
        }
      ],
      "title": "scsi: megaraid_sas: Fix invalid node index",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38239",
    "datePublished": "2025-07-09T10:42:24.170Z",
    "dateReserved": "2025-04-16T04:51:23.996Z",
    "dateUpdated": "2026-08-05T12:00:37.602Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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.