CVE-2024-50030 (GCVE-0-2024-50030)

Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2026-08-05 11:41
VLAI
Title
drm/xe/ct: prevent UAF in send_recv()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/xe/ct: prevent UAF in send_recv() Ensure we serialize with completion side to prevent UAF with fence going out of scope on the stack, since we have no clue if it will fire after the timeout before we can erase from the xa. Also we have some dependent loads and stores for which we need the correct ordering, and we lack the needed barriers. Fix this by grabbing the ct->lock after the wait, which is also held by the completion side. v2 (Badal): - Also print done after acquiring the lock and seeing timeout. (cherry picked from commit 52789ce35c55ccd30c4b67b9cc5b2af55e0122ea)
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: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < 8ed7dd4c55e4fb21531a9645aeb66a30eaf43a46 (git)
Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < db7f92af626178ba59dbbcdd5dee9ec24a987a88 (git)
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Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "title": "kernel: drm/xe/ct: prevent UAF in send_recv()",
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    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-50030\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:26:12.362646Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:26:15.760Z\"}}], \"cna\": {\"title\": \"drm/xe/ct: prevent UAF in send_recv()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"dd08ebf6c3525a7ea2186e636df064ea47281987\", \"lessThan\": \"8ed7dd4c55e4fb21531a9645aeb66a30eaf43a46\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"dd08ebf6c3525a7ea2186e636df064ea47281987\", \"lessThan\": \"db7f92af626178ba59dbbcdd5dee9ec24a987a88\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/xe/xe_guc_ct.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.8\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.8\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.11.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/xe/xe_guc_ct.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8ed7dd4c55e4fb21531a9645aeb66a30eaf43a46\"}, {\"url\": \"https://git.kernel.org/stable/c/db7f92af626178ba59dbbcdd5dee9ec24a987a88\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/xe/ct: prevent UAF in send_recv()\\n\\nEnsure we serialize with completion side to prevent UAF with fence going\\nout of scope on the stack, since we have no clue if it will fire after\\nthe timeout before we can erase from the xa. Also we have some dependent\\nloads and stores for which we need the correct ordering, and we lack the\\nneeded barriers. Fix this by grabbing the ct-\u003elock after the wait, which\\nis also held by the completion side.\\n\\nv2 (Badal):\\n - Also print done after acquiring the lock and seeing timeout.\\n\\n(cherry picked from commit 52789ce35c55ccd30c4b67b9cc5b2af55e0122ea)\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T09:31:42.230Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50030\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T09:31:42.230Z\", \"dateReserved\": \"2024-10-21T12:17:06.068Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T19:39:33.127Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.