CVE-2026-98182 (GCVE-0-2026-98182)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:44 – Updated: 2026-10-06 08:44
VLAI
Title
wifi: mac80211: refuse to make a monitor active when it has no queue
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: refuse to make a monitor active when it has no queue A monitor interface only gets a TXQ if it's created active, and one can't be added later. Setting the flag on a down interface is still allowed, so the driver is handed a monitor with no queue. ath9k dereferences it: BUG: kernel NULL pointer dereference, address: 0000000000000066 RIP: 0010:ath_tx_node_init+0x49/0x170 [ath9k] ath9k_add_interface+0x10c/0x140 [ath9k] drv_add_interface+0x54/0x250 [mac80211] ieee80211_do_open+0x32f/0x800 [mac80211] Reached with CAP_NET_ADMIN by "iw dev X set monitor active" followed by "ip link set X up". RTNL is held, so netlink operations block behind it. Refuse the flag when there is no queue to give.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 79af1f866193de29e65a4dba7d0dab14b0c0ff93 , < b7b7d46ec4fa127767931938b282c361c0519af6 (git)
Affected: 79af1f866193de29e65a4dba7d0dab14b0c0ff93 , < abe15e643e576459469867758ae9c586a7bab95d (git)
Affected: 79af1f866193de29e65a4dba7d0dab14b0c0ff93 , < 46c223468537a05a404699771cd3e68532dab5e6 (git)
Affected: 79af1f866193de29e65a4dba7d0dab14b0c0ff93 , < 2b04d6556964ae9f89819b86a0a7801e39c3aae5 (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
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{
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    "dateReserved": "2026-09-25T10:25:14.323Z",
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: refuse to make a monitor active when it has no queue\n\nA monitor interface only gets a TXQ if it\u0027s created active, and one can\u0027t\nbe added later. Setting the flag on a down interface is still allowed, so\nthe driver is handed a monitor with no queue. ath9k dereferences it:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000066\n  RIP: 0010:ath_tx_node_init+0x49/0x170 [ath9k]\n   ath9k_add_interface+0x10c/0x140 [ath9k]\n   drv_add_interface+0x54/0x250 [mac80211]\n   ieee80211_do_open+0x32f/0x800 [mac80211]\n\nReached with CAP_NET_ADMIN by \"iw dev X set monitor active\" followed by\n\"ip link set X up\". RTNL is held, so netlink operations block behind it.\n\nRefuse the flag when there is no queue to give."
          }
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98182.json",
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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.

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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.
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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.