CVE-2023-52609 (GCVE-0-2023-52609)

Vulnerability from cvelistv5 – Published: 2024-03-18 10:07 – Updated: 2026-05-11 19:30
VLAI
Title
binder: fix race between mmput() and do_exit()
Summary
In the Linux kernel, the following vulnerability has been resolved: binder: fix race between mmput() and do_exit() Task A calls binder_update_page_range() to allocate and insert pages on a remote address space from Task B. For this, Task A pins the remote mm via mmget_not_zero() first. This can race with Task B do_exit() and the final mmput() refcount decrement will come from Task A. Task A | Task B ------------------+------------------ mmget_not_zero() | | do_exit() | exit_mm() | mmput() mmput() | exit_mmap() | remove_vma() | fput() | In this case, the work of ____fput() from Task B is queued up in Task A as TWA_RESUME. So in theory, Task A returns to userspace and the cleanup work gets executed. However, Task A instead sleep, waiting for a reply from Task B that never comes (it's dead). This means the binder_deferred_release() is blocked until an unrelated binder event forces Task A to go back to userspace. All the associated death notifications will also be delayed until then. In order to fix this use mmput_async() that will schedule the work in the corresponding mm->async_put_work WQ instead of Task A.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 95b1d336b0642198b56836b89908d07b9a0c9608 (git)
Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 252a2a5569eb9f8d16428872cc24dea1ac0bb097 (git)
Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 7e7a0d86542b0ea903006d3f42f33c4f7ead6918 (git)
Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 98fee5bee97ad47b527a997d5786410430d1f0e9 (git)
Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 6696f76c32ff67fec26823fc2df46498e70d9bf3 (git)
Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 67f16bf2cc1698fd50e01ee8a2becc5a8e6d3a3e (git)
Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 77d210e8db4d61d43b2d16df66b1ec46fad2ee01 (git)
Affected: 457b9a6f09f011ebcb9b52cc203a6331a6fc2de7 , < 9a9ab0d963621d9d12199df9817e66982582d5a5 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.29
Unaffected: 0 , < 2.6.29 (semver)
Unaffected: 4.19.306 , ≤ 4.19.* (semver)
Unaffected: 5.4.268 , ≤ 5.4.* (semver)
Unaffected: 5.10.209 , ≤ 5.10.* (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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All the associated\\ndeath notifications will also be delayed until then.\\n\\nIn order to fix this use mmput_async() that will schedule the work in\\nthe corresponding mm-\u003easync_put_work WQ instead of Task A.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.306\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.268\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.209\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.148\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.75\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.14\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.2\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"2.6.29\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:30:17.511Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52609\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:30:17.511Z\", \"dateReserved\": \"2024-03-06T09:52:12.088Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-18T10:07:45.486Z\", \"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.