CVE-2024-56533

Summary

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

ALSA: usx2y: Use snd_card_free_when_closed() at disconnection

The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup.

An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux230cd5e24853ed4dd960461989b8ed0986d37a99 < 24fe9f7ca83ec9acf765339054951f5cd9ae5c5daffected
LinuxLinux230cd5e24853ed4dd960461989b8ed0986d37a99 < befcca1777525e37c659b4129d8ac7463b07ef67affected
LinuxLinux230cd5e24853ed4dd960461989b8ed0986d37a99 < 7bd8838c0ea886679a32834fdcacab296d072fbeaffected
LinuxLinux230cd5e24853ed4dd960461989b8ed0986d37a99 < e07605d855c4104d981653146a330ea48f6266edaffected
LinuxLinux230cd5e24853ed4dd960461989b8ed0986d37a99 < ffbfc6c4330fc233698529656798bee44fea96f5affected
LinuxLinux230cd5e24853ed4dd960461989b8ed0986d37a99 < e869642a77a9b3b98b0ab2c8fec7af4385140909affected
LinuxLinux230cd5e24853ed4dd960461989b8ed0986d37a99 < dafb28f02be407e07a6f679e922a626592b481b0affected
LinuxLinux2.6.13affected
LinuxLinux0 < 2.6.13unaffected
LinuxLinux5.10.231 <= 5.10.*unaffected
LinuxLinux5.15.174 <= 5.15.*unaffected
LinuxLinux6.1.120 <= 6.1.*unaffected
LinuxLinux6.6.64 <= 6.6.*unaffected
LinuxLinux6.11.11 <= 6.11.*unaffected
LinuxLinux6.12.2 <= 6.12.*unaffected
LinuxLinux6.13 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References