CVE-2022-49288 Details
Description
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).
A vulnerability in the Linux kernel's Advanced Linux Sound Architecture (ALSA) subsystem has been addressed. The issue stemmed from a lack of synchronization during concurrent preallocation of PCM (Pulse Code Modulation) buffers via proc files. This oversight could potentially lead to a use-after-free condition or other related problems. The vulnerability has been mitigated by applying the PCM open mutex to the proc write operation, thereby preventing the race conditions associated with concurrent proc writes and PCM stream operations.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 27, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/37b12c16beb6f6c1c3c678c1aacbc46525c250f7 | kernel.org | Patch |
| https://git.kernel.org/stable/c/51fce708ab8986a9879ee5da946a2cc120f1036d | kernel.org | Patch |
| https://git.kernel.org/stable/c/5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/69534c48ba8ce552ce383b3dfdb271ffe51820c3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/a21d2f323b5a978dedf9ff1d50f101f85e39b3f2 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b560d670c87d7d40b3cf6949246fa4c7aa65a00a | kernel.org | Patch |
| https://git.kernel.org/stable/c/e14dca613e0a6ddc2bf6e360f16936a9f865205b | kernel.org | Patch |
| https://git.kernel.org/stable/c/e7786c445bb67a9a6e64f66ebd6b7215b153ff7d | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | < 4.14.279 >= 4.15, < 4.19.243 >= 4.20, < 5.4.193 >= 5.5, < 5.10.109 >= 5.11, < 5.15.32 >= 5.16, < 5.16.18 >= 5.17, < 5.17.1 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 25, 2025 | Initial Analysis | [email protected] |
| Feb 27, 2025 | CVE Modified | CISA-ADP |
| Feb 26, 2025 | New CVE Received | kernel.org |