cve-2024-42079
Vulnerability from cvelistv5
Published
2024-07-29 15:52
Modified
2024-11-05 09:36
Severity ?
Summary
gfs2: Fix NULL pointer dereference in gfs2_log_flush
Impacted products
Vendor Product Version
Linux Linux
Show details on NVD website


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                "id": "CVE-2024-42079",
                "options": [
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    "cna": {
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          "product": "Linux",
          "programFiles": [
            "fs/gfs2/log.c",
            "fs/gfs2/super.c"
          ],
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix NULL pointer dereference in gfs2_log_flush\n\nIn gfs2_jindex_free(), set sdp-\u003esd_jdesc to NULL under the log flush\nlock to provide exclusion against gfs2_log_flush().\n\nIn gfs2_log_flush(), check if sdp-\u003esd_jdesc is non-NULL before\ndereferencing it.  Otherwise, we could run into a NULL pointer\ndereference when outstanding glock work races with an unmount\n(glock_work_func -\u003e run_queue -\u003e do_xmote -\u003e inode_go_sync -\u003e\ngfs2_log_flush)."
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-42079",
    "datePublished": "2024-07-29T15:52:41.360Z",
    "dateReserved": "2024-07-29T15:50:41.169Z",
    "dateUpdated": "2024-11-05T09:36:59.762Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-42079\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-29T16:15:07.180\",\"lastModified\":\"2024-11-21T09:33:33.117\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ngfs2: Fix NULL pointer dereference in gfs2_log_flush\\n\\nIn gfs2_jindex_free(), set sdp-\u003esd_jdesc to NULL under the log flush\\nlock to provide exclusion against gfs2_log_flush().\\n\\nIn gfs2_log_flush(), check if sdp-\u003esd_jdesc is non-NULL before\\ndereferencing it.  Otherwise, we could run into a NULL pointer\\ndereference when outstanding glock work races with an unmount\\n(glock_work_func -\u003e run_queue -\u003e do_xmote -\u003e inode_go_sync -\u003e\\ngfs2_log_flush).\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gfs2: corrige la desreferencia del puntero NULL en gfs2_log_flush En gfs2_jindex_free(), establezca sdp-\u0026gt;sd_jdesc en NULL bajo el bloqueo de descarga de registros para proporcionar exclusi\u00f3n contra gfs2_log_flush(). En gfs2_log_flush(), verifique si sdp-\u0026gt;sd_jdesc no es NULL antes de desreferenciarlo. De lo contrario, podr\u00edamos encontrarnos con una desreferencia de puntero NULL cuando el trabajo de glock pendiente se ejecuta con un desmontaje (glock_work_func -\u0026gt; run_queue -\u0026gt; do_xmote -\u0026gt; inode_go_sync -\u0026gt; gfs2_log_flush).\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.6.37\",\"matchCriteriaId\":\"816250D9-9650-4A7D-A4A7-1D69242F2032\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.8\",\"matchCriteriaId\":\"E95105F2-32E3-4C5F-9D18-7AEFD0E6275C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116ce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116ce\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
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}


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