cve-2024-50127
Vulnerability from cvelistv5
Published
2024-11-05 17:10
Modified
2024-12-19 09:33
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section protected by 'q->current_entry_lock' is too small to prevent from such a scenario (which causes use-after-free detected by KASAN). Fix this by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update 'admin' immediately before an attempt to schedule freeing.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301Patch
Impacted products
Vendor Product Version
Linux Linux Version: a3d43c0d56f1b94e74963a2fbadfb70126d92213
Version: a3d43c0d56f1b94e74963a2fbadfb70126d92213
Version: a3d43c0d56f1b94e74963a2fbadfb70126d92213
Version: a3d43c0d56f1b94e74963a2fbadfb70126d92213
Version: a3d43c0d56f1b94e74963a2fbadfb70126d92213
Version: a3d43c0d56f1b94e74963a2fbadfb70126d92213
Version: a3d43c0d56f1b94e74963a2fbadfb70126d92213
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   Linux Linux Version: 5.2
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.