CVE-2025-21909 (GCVE-0-2025-21909)

Vulnerability from cvelistv5 – Published: 2025-04-01 15:40 – Updated: 2025-11-03 19:38
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject cooked mode if it is set along with other flags It is possible to set both MONITOR_FLAG_COOK_FRAMES and MONITOR_FLAG_ACTIVE flags simultaneously on the same monitor interface from the userspace. This causes a sub-interface to be created with no IEEE80211_SDATA_IN_DRIVER bit set because the monitor interface is in the cooked state and it takes precedence over all other states. When the interface is then being deleted the kernel calls WARN_ONCE() from check_sdata_in_driver() because of missing that bit. Fix this by rejecting MONITOR_FLAG_COOK_FRAMES if it is set along with other flags. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < 5ea856d93794c4afa5542defd8c61f2708dc245a (git)
Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < 351eb7ac53ff1cd94d893c0c4534ced2f36ae7d7 (git)
Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < cd1bdcb77fdc03c253137e55bae10551b3481461 (git)
Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < 236f41ca728f23210b31ed2d1d8a6df575a4b2d6 (git)
Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < ebebbb0eded2ed9a1abfa31962f6fb699e6abce7 (git)
Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < 521e55c2b0d6028861ac0a2d06aa57bb0e3ac486 (git)
Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < ac4860141300581d3e2f6c6dafa37220f7ea9f65 (git)
Affected: 66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a , < 49f27f29446a5bfe633dd2cc0cfebd48a1a5e77f (git)
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    Linux Linux Affected: 2.6.26
Unaffected: 0 , < 2.6.26 (semver)
Unaffected: 5.4.291 , ≤ 5.4.* (semver)
Unaffected: 5.10.235 , ≤ 5.10.* (semver)
Unaffected: 5.15.179 , ≤ 5.15.* (semver)
Unaffected: 6.1.131 , ≤ 6.1.* (semver)
Unaffected: 6.6.83 , ≤ 6.6.* (semver)
Unaffected: 6.12.19 , ≤ 6.12.* (semver)
Unaffected: 6.13.7 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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When the interface is then being deleted\\nthe kernel calls WARN_ONCE() from check_sdata_in_driver() because of missing\\nthat bit.\\n\\nFix this by rejecting MONITOR_FLAG_COOK_FRAMES if it is set along with\\nother flags.\\n\\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: nl80211: rechaza el modo cocinado si se configura junto con otras banderas. Es posible configurar simult\u00e1neamente las banderas MONITOR_FLAG_COOK_FRAMES y MONITOR_FLAG_ACTIVE en la misma interfaz de monitor desde el espacio de usuario. Esto provoca que se cree una subinterfaz sin el bit IEEE80211_SDATA_IN_DRIVER configurado, ya que la interfaz de monitor est\u00e1 en estado cocinado y tiene prioridad sobre todos los dem\u00e1s estados. Al eliminar la interfaz, el kernel llama a WARN_ONCE() desde check_sdata_in_driver() debido a la falta de ese bit. 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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



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