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CVE-2026-98422

wifi: mac80211: reset the AP_VLAN tailroom counter on ifdown

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: reset the AP_VLAN tailroom counter on ifdown

On ifup, AP_VLAN interfaces get crypto_tx_tailroom_needed_cnt from
the AP interface, but it's never decremented again unless the AP is
also brought down. Thus, bringing the same AP_VLAN up again will
increment the counter again and eventually hit the sanity check:

  WARN_ON_ONCE(sdata->crypto_tx_tailroom_needed_cnt !=
               master->crypto_tx_tailroom_needed_cnt);

Reset it on ifdown to avoid that.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < b0b32d3f163d24ea7134380666193bf398e9dc0b
Status affected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < f6b34a7d64324faf28eedc0f8678b0f832f1cc36
Status affected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < 304a874670a0b6ab5589a7f60b4af0251797b121
Status affected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < 7775759e3cb35ef5a571b2d877c2a9b70a5d5f08
Status affected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < 3d76b45e8432c0d75fcb9e90d92eaa3176898adf
Status affected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < 4b54d01b48445b66c9e576de92b90a3a3ae7b34a
Status affected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < 875835377d8d62c849b4eb03a7abfafa71d7668f
Status affected
Version f9dca80b98caac8b4bfb43a2edf1e9f877ccf322
Version < 4504f3960dc4501c73be9f99eabda2e26e9db41e
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.1
Status affected
Version 0
Version < 4.1
Status unaffected
Version <= 5.10.*
Version 5.10.271
Status unaffected
Version <= 5.15.*
Version 5.15.222
Status unaffected
Version <= 6.1.*
Version 6.1.189
Status unaffected
Version <= 6.6.*
Version 6.6.158
Status unaffected
Version <= 6.12.*
Version 6.12.112
Status unaffected
Version <= 6.18.*
Version 6.18.54
Status unaffected
Version <= 7.2.*
Version 7.2.8
Status unaffected
Version <= *
Version 7.3
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.116
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/b0b32d3f163d24ea7134380666193bf398e9dc0b
https://git.kernel.org/stable/c/f6b34a7d64324faf28eedc0f8678b0f832f1cc36
https://git.kernel.org/stable/c/304a874670a0b6ab5589a7f60b4af0251797b121
https://git.kernel.org/stable/c/7775759e3cb35ef5a571b2d877c2a9b70a5d5f08
https://git.kernel.org/stable/c/3d76b45e8432c0d75fcb9e90d92eaa3176898adf
https://git.kernel.org/stable/c/4b54d01b48445b66c9e576de92b90a3a3ae7b34a
https://git.kernel.org/stable/c/875835377d8d62c849b4eb03a7abfafa71d7668f
https://git.kernel.org/stable/c/4504f3960dc4501c73be9f99eabda2e26e9db41e