CVE-2023-52480 (GCVE-0-2023-52480)

Vulnerability from cvelistv5 – Published: 2024-02-29 05:43 – Updated: 2026-05-11 19:28
VLAI
Title
ksmbd: fix race condition between session lookup and expire
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix race condition between session lookup and expire Thread A + Thread B ksmbd_session_lookup | smb2_sess_setup sess = xa_load | | | xa_erase(&conn->sessions, sess->id); | | ksmbd_session_destroy(sess) --> kfree(sess) | // UAF! | sess->last_active = jiffies | + This patch add rwsem to fix race condition between ksmbd_session_lookup and ksmbd_expire_session.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < a2ca5fd3dbcc665e1169044fa0c9e3eba779202b (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 18ced78b0ebccc2d16f426143dc56ab3aad666be (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 53ff5cf89142b978b1a5ca8dc4d4425e6a09745f (git)
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Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.145 , ≤ 5.15.* (semver)
Unaffected: 6.1.57 , ≤ 6.1.* (semver)
Unaffected: 6.5.7 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
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  }
}


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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.