Vulnerability-Lookup

GSD-2024-26935

Vulnerability from gsd - Updated: 2024-02-20 06:02

Details

** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.

Aliases

CVE-2024-26935

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-26935"
      ],
      "id": "GSD-2024-26935",
      "modified": "2024-02-20T06:02:29.288682Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2024-26935",
        "STATE": "RESERVED"
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
          }
        ]
      }
    }
  }
}

CVE-2024-26935 (GCVE-0-2024-26935)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:17 – Updated: 2025-05-04 12:55

Title

scsi: core: Fix unremoved procfs host directory regression

Summary

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix unremoved procfs host directory regression Commit fc663711b944 ("scsi: core: Remove the /proc/scsi/${proc_name} directory earlier") fixed a bug related to modules loading/unloading, by adding a call to scsi_proc_hostdir_rm() on scsi_remove_host(). But that led to a potential duplicate call to the hostdir_rm() routine, since it's also called from scsi_host_dev_release(). That triggered a regression report, which was then fixed by commit be03df3d4bfe ("scsi: core: Fix a procfs host directory removal regression"). The fix just dropped the hostdir_rm() call from dev_release(). But it happens that this proc directory is created on scsi_host_alloc(), and that function "pairs" with scsi_host_dev_release(), while scsi_remove_host() pairs with scsi_add_host(). In other words, it seems the reason for removing the proc directory on dev_release() was meant to cover cases in which a SCSI host structure was allocated, but the call to scsi_add_host() didn't happen. And that pattern happens to exist in some error paths, for example. Syzkaller causes that by using USB raw gadget device, error'ing on usb-storage driver, at usb_stor_probe2(). By checking that path, we can see that the BadDevice label leads to a scsi_host_put() after a SCSI host allocation, but there's no call to scsi_add_host() in such path. That leads to messages like this in dmesg (and a leak of the SCSI host proc structure): usb-storage 4-1:87.51: USB Mass Storage device detected proc_dir_entry 'scsi/usb-storage' already registered WARNING: CPU: 1 PID: 3519 at fs/proc/generic.c:377 proc_register+0x347/0x4e0 fs/proc/generic.c:376 The proper fix seems to still call scsi_proc_hostdir_rm() on dev_release(), but guard that with the state check for SHOST_CREATED; there is even a comment in scsi_host_dev_release() detailing that: such conditional is meant for cases where the SCSI host was allocated but there was no calls to {add,remove}_host(), like the usb-storage case. This is what we propose here and with that, the error path of usb-storage does not trigger the warning anymore.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/0053f15d50d50c931…
	https://git.kernel.org/stable/c/5c2386ba80e779a92…
	https://git.kernel.org/stable/c/cea234bb214b17d00…
	https://git.kernel.org/stable/c/3678cf67ff7136db1…
	https://git.kernel.org/stable/c/d4c34782b6d7b1e68…
	https://git.kernel.org/stable/c/e293c773c13b830cd…
	https://git.kernel.org/stable/c/f4ff08fab66eb5c0b…
	https://git.kernel.org/stable/c/f23a4d6e07570826f…

Impacted products

Vendor

Product

Version

Linux

Affected: 88c3d3bb6469cea929ac68fd326bdcbefcdfdd83 , < 0053f15d50d50c9312d8ab9c11e2e405812dfcac (git)
Affected: 68c665bb185037e7eb66fb792c61da9d7151e99c , < 5c2386ba80e779a92ec3bb64ccadbedd88f779b1 (git)
Affected: 2a764d55e938743efa7c2cba7305633bcf227f09 , < cea234bb214b17d004dfdccce4491e6ff57c96ee (git)
Affected: 7e0ae8667fcdd99d1756922e1140cac75f5fa279 , < 3678cf67ff7136db1dd3bf63c361650db5d92889 (git)
Affected: be03df3d4bfe7e8866d4aa43d62e648ffe884f5f , < d4c34782b6d7b1e68d18d9549451b19433bd4c6c (git)
Affected: be03df3d4bfe7e8866d4aa43d62e648ffe884f5f , < e293c773c13b830cdc251f155df2254981abc320 (git)
Affected: be03df3d4bfe7e8866d4aa43d62e648ffe884f5f , < f4ff08fab66eb5c0b97e1a24edac052fb40bf5d7 (git)
Affected: be03df3d4bfe7e8866d4aa43d62e648ffe884f5f , < f23a4d6e07570826fe95023ca1aa96a011fa9f84 (git)
Affected: 73f030d4ef6d1ad17f824a0a2eb637ef7a9c7d51 (git)

Linux

Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 5.4.274 , ≤ 5.4.* (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.154 , ≤ 5.15.* (semver)
Unaffected: 6.1.84 , ≤ 6.1.* (semver)
Unaffected: 6.6.24 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8.3 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26935",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-21T14:41:52.902192Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-21T14:42:04.057Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:21:05.717Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0053f15d50d50c9312d8ab9c11e2e405812dfcac"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5c2386ba80e779a92ec3bb64ccadbedd88f779b1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/cea234bb214b17d004dfdccce4491e6ff57c96ee"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3678cf67ff7136db1dd3bf63c361650db5d92889"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d4c34782b6d7b1e68d18d9549451b19433bd4c6c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e293c773c13b830cdc251f155df2254981abc320"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f4ff08fab66eb5c0b97e1a24edac052fb40bf5d7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f23a4d6e07570826fe95023ca1aa96a011fa9f84"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/hosts.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0053f15d50d50c9312d8ab9c11e2e405812dfcac",
              "status": "affected",
              "version": "88c3d3bb6469cea929ac68fd326bdcbefcdfdd83",
              "versionType": "git"
            },
            {
              "lessThan": "5c2386ba80e779a92ec3bb64ccadbedd88f779b1",
              "status": "affected",
              "version": "68c665bb185037e7eb66fb792c61da9d7151e99c",
              "versionType": "git"
            },
            {
              "lessThan": "cea234bb214b17d004dfdccce4491e6ff57c96ee",
              "status": "affected",
              "version": "2a764d55e938743efa7c2cba7305633bcf227f09",
              "versionType": "git"
            },
            {
              "lessThan": "3678cf67ff7136db1dd3bf63c361650db5d92889",
              "status": "affected",
              "version": "7e0ae8667fcdd99d1756922e1140cac75f5fa279",
              "versionType": "git"
            },
            {
              "lessThan": "d4c34782b6d7b1e68d18d9549451b19433bd4c6c",
              "status": "affected",
              "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f",
              "versionType": "git"
            },
            {
              "lessThan": "e293c773c13b830cdc251f155df2254981abc320",
              "status": "affected",
              "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f",
              "versionType": "git"
            },
            {
              "lessThan": "f4ff08fab66eb5c0b97e1a24edac052fb40bf5d7",
              "status": "affected",
              "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f",
              "versionType": "git"
            },
            {
              "lessThan": "f23a4d6e07570826fe95023ca1aa96a011fa9f84",
              "status": "affected",
              "version": "be03df3d4bfe7e8866d4aa43d62e648ffe884f5f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "73f030d4ef6d1ad17f824a0a2eb637ef7a9c7d51",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/hosts.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.274",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.215",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.154",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.84",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.274",
                  "versionStartIncluding": "5.4.238",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.215",
                  "versionStartIncluding": "5.10.176",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.154",
                  "versionStartIncluding": "5.15.104",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.84",
                  "versionStartIncluding": "6.1.21",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.24",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.12",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8.3",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.2.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Fix unremoved procfs host directory regression\n\nCommit fc663711b944 (\"scsi: core: Remove the /proc/scsi/${proc_name}\ndirectory earlier\") fixed a bug related to modules loading/unloading, by\nadding a call to scsi_proc_hostdir_rm() on scsi_remove_host(). But that led\nto a potential duplicate call to the hostdir_rm() routine, since it\u0027s also\ncalled from scsi_host_dev_release(). That triggered a regression report,\nwhich was then fixed by commit be03df3d4bfe (\"scsi: core: Fix a procfs host\ndirectory removal regression\"). The fix just dropped the hostdir_rm() call\nfrom dev_release().\n\nBut it happens that this proc directory is created on scsi_host_alloc(),\nand that function \"pairs\" with scsi_host_dev_release(), while\nscsi_remove_host() pairs with scsi_add_host(). In other words, it seems the\nreason for removing the proc directory on dev_release() was meant to cover\ncases in which a SCSI host structure was allocated, but the call to\nscsi_add_host() didn\u0027t happen. And that pattern happens to exist in some\nerror paths, for example.\n\nSyzkaller causes that by using USB raw gadget device, error\u0027ing on\nusb-storage driver, at usb_stor_probe2(). By checking that path, we can see\nthat the BadDevice label leads to a scsi_host_put() after a SCSI host\nallocation, but there\u0027s no call to scsi_add_host() in such path. That leads\nto messages like this in dmesg (and a leak of the SCSI host proc\nstructure):\n\nusb-storage 4-1:87.51: USB Mass Storage device detected\nproc_dir_entry \u0027scsi/usb-storage\u0027 already registered\nWARNING: CPU: 1 PID: 3519 at fs/proc/generic.c:377 proc_register+0x347/0x4e0 fs/proc/generic.c:376\n\nThe proper fix seems to still call scsi_proc_hostdir_rm() on dev_release(),\nbut guard that with the state check for SHOST_CREATED; there is even a\ncomment in scsi_host_dev_release() detailing that: such conditional is\nmeant for cases where the SCSI host was allocated but there was no calls to\n{add,remove}_host(), like the usb-storage case.\n\nThis is what we propose here and with that, the error path of usb-storage\ndoes not trigger the warning anymore."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T12:55:14.484Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0053f15d50d50c9312d8ab9c11e2e405812dfcac"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c2386ba80e779a92ec3bb64ccadbedd88f779b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/cea234bb214b17d004dfdccce4491e6ff57c96ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/3678cf67ff7136db1dd3bf63c361650db5d92889"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4c34782b6d7b1e68d18d9549451b19433bd4c6c"
        },
        {
          "url": "https://git.kernel.org/stable/c/e293c773c13b830cdc251f155df2254981abc320"
        },
        {
          "url": "https://git.kernel.org/stable/c/f4ff08fab66eb5c0b97e1a24edac052fb40bf5d7"
        },
        {
          "url": "https://git.kernel.org/stable/c/f23a4d6e07570826fe95023ca1aa96a011fa9f84"
        }
      ],
      "title": "scsi: core: Fix unremoved procfs host directory regression",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26935",
    "datePublished": "2024-05-01T05:17:31.445Z",
    "dateReserved": "2024-02-19T14:20:24.196Z",
    "dateUpdated": "2025-05-04T12:55:14.484Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GSD-2024-26935

CVE-2024-26935 (GCVE-0-2024-26935)

Tags

Sightings

Nomenclature