CVE-2022-50380 (GCVE-0-2022-50380)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-05-11 19:18
VLAI
Title
mm: /proc/pid/smaps_rollup: fix no vma's null-deref
Summary
In the Linux kernel, the following vulnerability has been resolved: mm: /proc/pid/smaps_rollup: fix no vma's null-deref Commit 258f669e7e88 ("mm: /proc/pid/smaps_rollup: convert to single value seq_file") introduced a null-deref if there are no vma's in the task in show_smaps_rollup.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 258f669e7e88c18edbc23fe5ce00a476b924551f , < dbe863bce7679c7f5ec0e993d834fe16c5e687b5 (git)
Affected: 258f669e7e88c18edbc23fe5ce00a476b924551f , < 6bb8769326c46db3058780c0640dcc49d8187b24 (git)
Affected: 258f669e7e88c18edbc23fe5ce00a476b924551f , < a50ed2d28727ff605d95fb9a53be8ff94e8eaaf4 (git)
Affected: 258f669e7e88c18edbc23fe5ce00a476b924551f , < 33fc9e26b7cb39f0d4219c875a2451802249c225 (git)
Affected: 258f669e7e88c18edbc23fe5ce00a476b924551f , < 97898139ca9b81ba9322a585e07490983c53b55a (git)
Affected: 258f669e7e88c18edbc23fe5ce00a476b924551f , < c4c84f06285e48f80e9843d0775ad92714ffc35a (git)
Create a notification for this product.
Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 4.19.264 , ≤ 4.19.* (semver)
Unaffected: 5.4.221 , ≤ 5.4.* (semver)
Unaffected: 5.10.152 , ≤ 5.10.* (semver)
Unaffected: 5.15.76 , ≤ 5.15.* (semver)
Unaffected: 6.0.6 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"33fc9e26b7cb39f0d4219c875a2451802249c225\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"258f669e7e88c18edbc23fe5ce00a476b924551f\", \"lessThan\": \"97898139ca9b81ba9322a585e07490983c53b55a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"258f669e7e88c18edbc23fe5ce00a476b924551f\", \"lessThan\": \"c4c84f06285e48f80e9843d0775ad92714ffc35a\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/proc/task_mmu.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.19\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.264\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.221\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.152\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.76\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/proc/task_mmu.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/dbe863bce7679c7f5ec0e993d834fe16c5e687b5\"}, {\"url\": \"https://git.kernel.org/stable/c/6bb8769326c46db3058780c0640dcc49d8187b24\"}, {\"url\": \"https://git.kernel.org/stable/c/a50ed2d28727ff605d95fb9a53be8ff94e8eaaf4\"}, {\"url\": \"https://git.kernel.org/stable/c/33fc9e26b7cb39f0d4219c875a2451802249c225\"}, {\"url\": \"https://git.kernel.org/stable/c/97898139ca9b81ba9322a585e07490983c53b55a\"}, {\"url\": \"https://git.kernel.org/stable/c/c4c84f06285e48f80e9843d0775ad92714ffc35a\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm: /proc/pid/smaps_rollup: fix no vma\u0027s null-deref\\n\\nCommit 258f669e7e88 (\\\"mm: /proc/pid/smaps_rollup: convert to single value\\nseq_file\\\") introduced a null-deref if there are no vma\u0027s in the task in\\nshow_smaps_rollup.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.264\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.221\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.152\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.76\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.6\", \"versionStartIncluding\": \"4.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"4.19\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:18:25.104Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50380\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:18:25.104Z\", \"dateReserved\": \"2025-09-17T14:53:06.996Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:02.472Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





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.