CVE-2024-42079 (GCVE-0-2024-42079)

Vulnerability from cvelistv5 – Published: 2024-07-29 15:52 – Updated: 2026-05-11 20:26
VLAI
Title
gfs2: Fix NULL pointer dereference in gfs2_log_flush
Summary
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush lock to provide exclusion against gfs2_log_flush(). In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before dereferencing it. Otherwise, we could run into a NULL pointer dereference when outstanding glock work races with an unmount (glock_work_func -> run_queue -> do_xmote -> inode_go_sync -> gfs2_log_flush).
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 82218943058d5e3fe692a38b5a549479738dab33 , < c3c5cfa3170c0940bc66a142859caac07d19b9d6 (git)
Affected: 82218943058d5e3fe692a38b5a549479738dab33 , < 5f6a84cfb33b34610623857bd93919dcb661e29b (git)
Affected: 82218943058d5e3fe692a38b5a549479738dab33 , < 3429ef5f50909cee9e498c50f0c499b9397116ce (git)
Affected: 82218943058d5e3fe692a38b5a549479738dab33 , < f54f9d5368a4e92ede7dd078a62788dae3a7c6ef (git)
Affected: 82218943058d5e3fe692a38b5a549479738dab33 , < 35264909e9d1973ab9aaa2a1b07cda70f12bb828 (git)
Create a notification for this product.
Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.200 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.37 , ≤ 6.6.* (semver)
Unaffected: 6.9.8 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
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  }
}


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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.