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In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: Fix races among concurrent prealloc proc writes
We have no protection against concurrent PCM buffer preallocation changes via proc files, and it may potentially lead to UAF or some weird problem. This patch applies the PCM open_mutex to the proc write operation for avoiding the racy proc writes and the PCM stream open (and further operations).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-aws-hweUpgrade linux-oracleUpgrade linux-azure-5.4Upgrade linux-azure-5.15Upgrade linux-gcp-5.4Upgrade linux-azureUpgrade linux-lowlatencyUpgrade linux-aws-fipsUpgrade linux-ibmUpgrade linux-aws-5.4Upgrade linux-hwe-5.15Upgrade linux-fipsUpgrade linux-intel-iotgUpgrade linux-hwe-5.4Upgrade linux-gcp-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-gkeUpgrade linux-realtimeUpgrade linux-azure-fipsUpgrade linux-kvmUpgrade linux-hweUpgrade linux-bluefieldUpgrade linux-raspi-5.4Upgrade linux-iotUpgrade linux-gcpUpgrade linux-gcp-4.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-oracle-5.4Upgrade linux-azure-4.15Upgrade linux-ibm-5.4Upgrade linux-awsUpgrade linuxUpgrade linux-raspi | Mar 3, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
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