CVE-2024-46780 (GCVE-0-2024-46780)
Vulnerability from cvelistv5
Published
2024-09-18 07:12
Modified
2025-05-04 09:34
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing, and even abandoned when degrading to one side due to backing device issues. So, accessing them requires mutual exclusion using the reader/writer semaphore "nilfs->ns_sem". Some sysfs attribute show methods read this superblock buffer without the necessary mutual exclusion, which can cause problems with pointer dereferencing and memory access, so fix it.
References
Impacted products
Vendor Product Version
Linux Linux Version: da7141fb78db915680616e15677539fc8140cf53
Version: da7141fb78db915680616e15677539fc8140cf53
Version: da7141fb78db915680616e15677539fc8140cf53
Version: da7141fb78db915680616e15677539fc8140cf53
Version: da7141fb78db915680616e15677539fc8140cf53
Version: da7141fb78db915680616e15677539fc8140cf53
Version: da7141fb78db915680616e15677539fc8140cf53
Version: da7141fb78db915680616e15677539fc8140cf53
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-46780\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-29T14:38:16.059134Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-29T14:38:20.261Z\"}}], \"cna\": {\"title\": \"nilfs2: protect references to superblock parameters exposed in sysfs\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"b90beafac05931cbfcb6b1bd4f67c1923f47040e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"ba97ba173f9625d5f34a986088979eae8b80d38e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"157c0d94b4c40887329418c70ef4edd1a8d6b4ed\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"b14e7260bb691d7f563f61da07d61e3c8b59a614\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"19cfeba0e4b8eda51484fcf8cf7d150418e1d880\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"8c6e43b3d5f109cf9c61bc188fcc8175404e924f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"962562d4c70c5cdeb4e955d63ff2017c4eca1aad\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"da7141fb78db915680616e15677539fc8140cf53\", \"lessThan\": \"683408258917541bdb294cd717c210a04381931e\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/nilfs2/sysfs.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.322\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.284\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.226\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.167\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.51\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/nilfs2/sysfs.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e\"}, {\"url\": \"https://git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e\"}, {\"url\": \"https://git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed\"}, {\"url\": \"https://git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614\"}, {\"url\": \"https://git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880\"}, {\"url\": \"https://git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f\"}, {\"url\": \"https://git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad\"}, {\"url\": \"https://git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnilfs2: protect references to superblock parameters exposed in sysfs\\n\\nThe superblock buffers of nilfs2 can not only be overwritten at runtime\\nfor modifications/repairs, but they are also regularly swapped, replaced\\nduring resizing, and even abandoned when degrading to one side due to\\nbacking device issues.  So, accessing them requires mutual exclusion using\\nthe reader/writer semaphore \\\"nilfs-\u003ens_sem\\\".\\n\\nSome sysfs attribute show methods read this superblock buffer without the\\nnecessary mutual exclusion, which can cause problems with pointer\\ndereferencing and memory access, so fix it.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T09:22:59.932Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-46780\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T09:22:59.932Z\", \"dateReserved\": \"2024-09-11T15:12:18.276Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-09-18T07:12:36.736Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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