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kernel: ALSA: aloop: Fix racy access at PCM trigger

🗓️ 07 May 2026 19:41:31Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 8 Views

ALSA aloop fixes race at PCM trigger to prevent UAF by locking cable and checking capture stream state.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64bpftool3.10.0-1160.149.1.el7bpftool-3.10.0-1160.149.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lebpftool3.10.0-1160.149.1.el7bpftool-3.10.0-1160.149.1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xbpftool3.10.0-1160.149.1.el7bpftool-3.10.0-1160.149.1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64bpftool3.10.0-1160.149.1.el7bpftool-3.10.0-1160.149.1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64bpftool-debuginfo3.10.0-1160.149.1.el7bpftool-debuginfo-3.10.0-1160.149.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lebpftool-debuginfo3.10.0-1160.149.1.el7bpftool-debuginfo-3.10.0-1160.149.1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xbpftool-debuginfo3.10.0-1160.149.1.el7bpftool-debuginfo-3.10.0-1160.149.1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64bpftool-debuginfo3.10.0-1160.149.1.el7bpftool-debuginfo-3.10.0-1160.149.1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64kernel3.10.0-1160.149.1.el7kernel-3.10.0-1160.149.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel3.10.0-1160.149.1.el7kernel-3.10.0-1160.149.1.el7.ppc64le.rpm
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08 Jul 2026 05:33Current
6Medium risk
Vulners AI Score6
CVSS 3.17 - 7.8
EPSS0.00113
SSVC
8