cbcvebase.
CVE-2022-49291
published 2025-02-26

CVE-2022-49291: In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent hw_params and hw_free calls Currently we have neither…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.30%
22.3th percentile
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent hw_params and hw_free calls Currently we have neither proper check nor protection against the concurrent calls of PCM hw_params and hw_free ioctls, which may result in a UAF. Since the existing PCM stream lock can't be used for protecting the whole ioctl operations, we need a new mutex to protect those racy calls. This patch introduced a new mutex, runtime->buffer_mutex, and applies it to both hw_params and hw_free ioctl code paths. Along with it, the both functions are slightly modified (the mmap_count check is moved into the state-check block) for code simplicity.

Affected

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.17.3-1 (bookworm)linux 5.17.3-1 (bookworm)
linuxlinux——
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a42aa926843acca96c0dfbde2e835b8137f2f092a42aa926843acca96c0dfbde2e835b8137f2f092
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9cb6c40a6ebe4a0cfc9d6a181958211682cffea99cb6c40a6ebe4a0cfc9d6a181958211682cffea9
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fbeb492694ce0441053de57699e1e2b7bc148a69fbeb492694ce0441053de57699e1e2b7bc148a69
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0f6947f5f5208f6ebd4d76a82a4757e2839a23f80f6947f5f5208f6ebd4d76a82a4757e2839a23f8
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 33061d0fba51d2bf70a2ef9645f703c33fe8e43833061d0fba51d2bf70a2ef9645f703c33fe8e438
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0090c13cbbdffd7da079ac56f80373a9a1be0bf80090c13cbbdffd7da079ac56f80373a9a1be0bf8
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1bbf82d9f961414d6c76a08f7f843ea068e0ab7b1bbf82d9f961414d6c76a08f7f843ea068e0ab7b
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 92ee3c60ec9fe64404dc035e7c41277d74aa26cb92ee3c60ec9fe64404dc035e7c41277d74aa26cb
linuxlinux_kernel< 4.14.2794.14.279
linuxlinux_kernel>= 0 < 5.10.113-15.10.113-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 4.15 < 4.19.2434.19.243
linuxlinux_kernel>= 4.20 < 5.4.1935.4.193
linuxlinux_kernel>= 5.11 < 5.15.325.15.32
linuxlinux_kernel>= 5.16 < 5.16.185.16.18
linuxlinux_kernel>= 5.17 < 5.17.15.17.1
linuxlinux_kernel>= 5.5 < 5.10.1095.10.109

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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