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CVE-2026-90060

ALSA: control: Don't add invalid kcontrols to LED layer

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

ALSA: control: Don't add invalid kcontrols to LED layer

The kcontrol LED state layer tries to track the all associated
kcontrol elements with naive assumptions that they are readable.
But one can create a write-only element that has no get callback (even
a user element can do it), and this may lead to a NULL dereference at
the call chain of snd_ctl_led_notify(), as found by syzkaller.

For avoiding the Oops, add a sanity check of the kcontrol's info and
get callbacks, and just skip the invalid kcontrols before assigning
the kctl to the LED layer.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version < 6e152cbfac3a2a62f79df7d23d621917c20367eb
Status affected
Version 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version < 3d20cd049fc5f51f80e24a2db7a3cf00593c79e4
Status affected
Version 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version < 2f0c97b1a32fba8e81a69f6231aa0b3c9b6bc581
Status affected
Version 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version < 18c08f84ca483029f04e426ec7ca3b5d3684cf22
Status affected
Version 22d8de62f11b287b279f1d4473a78c7d5e53e7bc
Version < 74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.13
Status affected
Version 0
Version < 5.13
Status unaffected
Version <= 6.1.*
Version 6.1.188
Status unaffected
Version <= 6.12.*
Version 6.12.110
Status unaffected
Version <= 6.18.*
Version 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
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 0.2% 0.102
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/6e152cbfac3a2a62f79df7d23d621917c20367eb
https://git.kernel.org/stable/c/3d20cd049fc5f51f80e24a2db7a3cf00593c79e4
https://git.kernel.org/stable/c/2f0c97b1a32fba8e81a69f6231aa0b3c9b6bc581
https://git.kernel.org/stable/c/18c08f84ca483029f04e426ec7ca3b5d3684cf22
https://git.kernel.org/stable/c/74e3b979ce8b78a690f8b94ccf2e2c965f7f5c11