CVE-2026-23357 (GCVE-0-2026-23357)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-03-25 10:27
VLAI?
Title
can: mcp251x: fix deadlock in error path of mcp251x_open
Summary
In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock in error path of mcp251x_open The mcp251x_open() function call free_irq() in its error path with the mpc_lock mutex held. But if an interrupt already occurred the interrupt handler will be waiting for the mpc_lock and free_irq() will deadlock waiting for the handler to finish. This issue is similar to the one fixed in commit 7dd9c26bd6cf ("can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open") but for the error path. To solve this issue move the call to free_irq() after the lock is released. Setting `priv->force_quit = 1` beforehand ensure that the IRQ handler will exit right away once it acquired the lock.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: bf66f3736a945dd4e92d86427276c6eeab0a6c1d , < 256f0cff6e946c570392bda1d01a65e789a7afd0 (git)
Affected: bf66f3736a945dd4e92d86427276c6eeab0a6c1d , < b73832292cd914e87a55e863ba4413a907e7db6b (git)
Affected: bf66f3736a945dd4e92d86427276c6eeab0a6c1d , < 38063cc435b69d56e76f947c10d336fcb2953508 (git)
Affected: bf66f3736a945dd4e92d86427276c6eeab0a6c1d , < d27f12c3f5e85efc479896af4a69eccb37f75e8e (git)
Affected: bf66f3736a945dd4e92d86427276c6eeab0a6c1d , < e728f444c913a91d290d1824b4770780bbd6378e (git)
Affected: bf66f3736a945dd4e92d86427276c6eeab0a6c1d , < ab3f894de216f4a62adc3b57e9191888cbf26885 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.34
Unaffected: 0 , < 2.6.34 (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc3 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/spi/mcp251x.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "256f0cff6e946c570392bda1d01a65e789a7afd0",
              "status": "affected",
              "version": "bf66f3736a945dd4e92d86427276c6eeab0a6c1d",
              "versionType": "git"
            },
            {
              "lessThan": "b73832292cd914e87a55e863ba4413a907e7db6b",
              "status": "affected",
              "version": "bf66f3736a945dd4e92d86427276c6eeab0a6c1d",
              "versionType": "git"
            },
            {
              "lessThan": "38063cc435b69d56e76f947c10d336fcb2953508",
              "status": "affected",
              "version": "bf66f3736a945dd4e92d86427276c6eeab0a6c1d",
              "versionType": "git"
            },
            {
              "lessThan": "d27f12c3f5e85efc479896af4a69eccb37f75e8e",
              "status": "affected",
              "version": "bf66f3736a945dd4e92d86427276c6eeab0a6c1d",
              "versionType": "git"
            },
            {
              "lessThan": "e728f444c913a91d290d1824b4770780bbd6378e",
              "status": "affected",
              "version": "bf66f3736a945dd4e92d86427276c6eeab0a6c1d",
              "versionType": "git"
            },
            {
              "lessThan": "ab3f894de216f4a62adc3b57e9191888cbf26885",
              "status": "affected",
              "version": "bf66f3736a945dd4e92d86427276c6eeab0a6c1d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/spi/mcp251x.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.34"
            },
            {
              "lessThan": "2.6.34",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.167",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.130",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.167",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.130",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.77",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.17",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.7",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0-rc3",
                  "versionStartIncluding": "2.6.34",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: mcp251x: fix deadlock in error path of mcp251x_open\n\nThe mcp251x_open() function call free_irq() in its error path with the\nmpc_lock mutex held. But if an interrupt already occurred the\ninterrupt handler will be waiting for the mpc_lock and free_irq() will\ndeadlock waiting for the handler to finish.\n\nThis issue is similar to the one fixed in commit 7dd9c26bd6cf (\"can:\nmcp251x: fix deadlock if an interrupt occurs during mcp251x_open\") but\nfor the error path.\n\nTo solve this issue move the call to free_irq() after the lock is\nreleased. Setting `priv-\u003eforce_quit = 1` beforehand ensure that the IRQ\nhandler will exit right away once it acquired the lock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-25T10:27:41.299Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/256f0cff6e946c570392bda1d01a65e789a7afd0"
        },
        {
          "url": "https://git.kernel.org/stable/c/b73832292cd914e87a55e863ba4413a907e7db6b"
        },
        {
          "url": "https://git.kernel.org/stable/c/38063cc435b69d56e76f947c10d336fcb2953508"
        },
        {
          "url": "https://git.kernel.org/stable/c/d27f12c3f5e85efc479896af4a69eccb37f75e8e"
        },
        {
          "url": "https://git.kernel.org/stable/c/e728f444c913a91d290d1824b4770780bbd6378e"
        },
        {
          "url": "https://git.kernel.org/stable/c/ab3f894de216f4a62adc3b57e9191888cbf26885"
        }
      ],
      "title": "can: mcp251x: fix deadlock in error path of mcp251x_open",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23357",
    "datePublished": "2026-03-25T10:27:41.299Z",
    "dateReserved": "2026-01-13T15:37:46.000Z",
    "dateUpdated": "2026-03-25T10:27:41.299Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23357\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-03-25T11:16:34.450\",\"lastModified\":\"2026-03-25T15:41:33.977\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: mcp251x: fix deadlock in error path of mcp251x_open\\n\\nThe mcp251x_open() function call free_irq() in its error path with the\\nmpc_lock mutex held. But if an interrupt already occurred the\\ninterrupt handler will be waiting for the mpc_lock and free_irq() will\\ndeadlock waiting for the handler to finish.\\n\\nThis issue is similar to the one fixed in commit 7dd9c26bd6cf (\\\"can:\\nmcp251x: fix deadlock if an interrupt occurs during mcp251x_open\\\") but\\nfor the error path.\\n\\nTo solve this issue move the call to free_irq() after the lock is\\nreleased. Setting `priv-\u003eforce_quit = 1` beforehand ensure that the IRQ\\nhandler will exit right away once it acquired the lock.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/256f0cff6e946c570392bda1d01a65e789a7afd0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/38063cc435b69d56e76f947c10d336fcb2953508\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ab3f894de216f4a62adc3b57e9191888cbf26885\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b73832292cd914e87a55e863ba4413a907e7db6b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d27f12c3f5e85efc479896af4a69eccb37f75e8e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e728f444c913a91d290d1824b4770780bbd6378e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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 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.