CVE-2022-50367 (GCVE-0-2022-50367)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-05-11 19:18
VLAI
Title
fs: fix UAF/GPF bug in nilfs_mdt_destroy
Summary
In the Linux kernel, the following vulnerability has been resolved: fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF). Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes)
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d1ff475d7c83289d0a7faef346ea3bbf90818bad (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c0aa76b0f17f59dd9c9d3463550a2986a1d592e4 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 70e4f70d54e0225f91814e8610477d65f33cefe4 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1e555c3ed1fce4b278aaebe18a64a934cece57d8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 64b79e632869ad3ef6c098a4731d559381da1115 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 81de80330fa6907aec32eb54c5619059e6e36452 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2a96b532098284ecf8e4849b8b9e5fc7a28bdee9 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2e488f13755ffbb60f307e991b27024716a33b29 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.9.331 , ≤ 4.9.* (semver)
Unaffected: 4.14.296 , ≤ 4.14.* (semver)
Unaffected: 4.19.262 , ≤ 4.19.* (semver)
Unaffected: 5.4.218 , ≤ 5.4.* (semver)
Unaffected: 5.10.148 , ≤ 5.10.* (semver)
Unaffected: 5.15.73 , ≤ 5.15.* (semver)
Unaffected: 5.19.15 , ≤ 5.19.* (semver)
Unaffected: 6.0.1 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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\"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:35:05.692Z\"}}], \"cna\": {\"title\": \"fs: fix UAF/GPF bug in nilfs_mdt_destroy\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"d1ff475d7c83289d0a7faef346ea3bbf90818bad\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"c0aa76b0f17f59dd9c9d3463550a2986a1d592e4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"70e4f70d54e0225f91814e8610477d65f33cefe4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"1e555c3ed1fce4b278aaebe18a64a934cece57d8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"64b79e632869ad3ef6c098a4731d559381da1115\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"81de80330fa6907aec32eb54c5619059e6e36452\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"2a96b532098284ecf8e4849b8b9e5fc7a28bdee9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"2e488f13755ffbb60f307e991b27024716a33b29\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/inode.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.331\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.296\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.262\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.218\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.148\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.73\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.19.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.1\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/inode.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d1ff475d7c83289d0a7faef346ea3bbf90818bad\"}, {\"url\": \"https://git.kernel.org/stable/c/c0aa76b0f17f59dd9c9d3463550a2986a1d592e4\"}, {\"url\": \"https://git.kernel.org/stable/c/ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48\"}, {\"url\": \"https://git.kernel.org/stable/c/70e4f70d54e0225f91814e8610477d65f33cefe4\"}, {\"url\": \"https://git.kernel.org/stable/c/1e555c3ed1fce4b278aaebe18a64a934cece57d8\"}, {\"url\": \"https://git.kernel.org/stable/c/64b79e632869ad3ef6c098a4731d559381da1115\"}, {\"url\": \"https://git.kernel.org/stable/c/81de80330fa6907aec32eb54c5619059e6e36452\"}, {\"url\": \"https://git.kernel.org/stable/c/2a96b532098284ecf8e4849b8b9e5fc7a28bdee9\"}, {\"url\": \"https://git.kernel.org/stable/c/2e488f13755ffbb60f307e991b27024716a33b29\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfs: fix UAF/GPF bug in nilfs_mdt_destroy\\n\\nIn alloc_inode, inode_init_always() could return -ENOMEM if\\nsecurity_inode_alloc() fails, which causes inode-\u003ei_private\\nuninitialized. Then nilfs_is_metadata_file_inode() returns\\ntrue and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(),\\nwhich frees the uninitialized inode-\u003ei_private\\nand leads to crashes(e.g., UAF/GPF).\\n\\nFix this by moving security_inode_alloc just prior to\\nthis_cpu_inc(nr_inodes)\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.331\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.296\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.262\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.218\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.148\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.73\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.15\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.1\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"2.6.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:18:11.230Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50367\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:18:11.230Z\", \"dateReserved\": \"2025-09-17T14:53:06.995Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-17T14:56:23.190Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.