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CVE-2026-97411

net: ibm: emac: mal: fix potential system hang in mal_remove()

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

net: ibm: emac: mal: fix potential system hang in mal_remove()

napi_disable() is not idempotent and calling it on an already-disabled
or unenabled NAPI context will cause the kernel to spin indefinitely
waiting for the NAPI_STATE_SCHED bit to clear.

In mal_remove(), napi_disable() is called unconditionally. If no MACs were
registered, NAPI was never enabled. Also, if they were registered but
subsequently unregistered, NAPI was already disabled in
mal_unregister_commac(). In either case, calling napi_disable() causes
the kernel to hang upon module removal.

Fix this by only calling napi_disable() in mal_remove() if the commac list
is not empty (which implies NAPI is enabled).
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9
Version < 9c1c814a662d9c81959eba591bb52b24639390f2
Status affected
Version b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9
Version < 34c4cae51718d6f393415e01c61314c1bde02f2e
Status affected
Version b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9
Version < 62126e73e230cf4bd6c27cf201949c4290af84a1
Status affected
Version b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9
Version < f0399b3e212741bc5a64b8399d6266c4a150bdfe
Status affected
Version b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9
Version < f6c1aad9b35fa083f48ce0c5926204891d82e089
Status affected
Version b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9
Version < c4cb9a728df66c46067b26263f5beb633aae4087
Status affected
Version b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9
Version < 7c5d41f87f079990bf241359e3c1332d8d10fe87
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.24
Status affected
Version 0
Version < 2.6.24
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 6.12.111
Status unaffected
Version <= 6.18.*
Version 6.18.53
Status unaffected
Version <= *
Version 7.2
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 0.17% 0.052
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/f6c1aad9b35fa083f48ce0c5926204891d82e089
https://git.kernel.org/stable/c/c4cb9a728df66c46067b26263f5beb633aae4087
https://git.kernel.org/stable/c/7c5d41f87f079990bf241359e3c1332d8d10fe87
https://git.kernel.org/stable/c/34c4cae51718d6f393415e01c61314c1bde02f2e
https://git.kernel.org/stable/c/62126e73e230cf4bd6c27cf201949c4290af84a1
https://git.kernel.org/stable/c/9c1c814a662d9c81959eba591bb52b24639390f2
https://git.kernel.org/stable/c/f0399b3e212741bc5a64b8399d6266c4a150bdfe