CVE-2026-89980

Summary

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

ALSA: harmony: initialize locks before requesting IRQ

snd_harmony_create() registers the IRQ before initializing h->lock and h->mixer_lock. A pending interrupt can invoke the handler while these locks are uninitialized.

Initialize both locks before requesting the IRQ so the handler always sees valid lock state.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9af6c9203583655cb7ed45e52e14101652b37547affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f86ff9238b0c8284909e073a681a60708b9f36abaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7dc239edb6d58e01c9ec868565cc03e7adf91747affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9347588bbd6ad43a85e17046d9c117a41453c52aaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 89992bda7dfbba7ded2ba4185730453c57fa65bcaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cd209eb3136e002becbda232e399fa31a2276436affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 33abb7491e89285a41565670945293dda841afc4affected
LinuxLinux2.6.12affected
LinuxLinux0 < 2.6.12unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.51 <= 6.18.*unaffected
LinuxLinux7.2.5 <= 7.2.*unaffected
LinuxLinux7.3-rc2 <= *unaffected

Weaknesses

References