01 Record

CVE-2022-49288

ALSA: pcm: Fix races among concurrent prealloc proc writes

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ALSA: pcm: Fix races among concurrent prealloc proc writes

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 20.7% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-02-26 01:56Z1 YR AGO

Last updated

2026-05-11 18:56Z5 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-416Use After FreeVariant
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.2

Document digest

e67991063e812bcab8e153f6102b6f12ae1e2e1ae2eca209e68a08d98a714450

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < e7786c445bb67a9a6e64f66ebd6b7215b153ff7d, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < e14dca613e0a6ddc2bf6e360f16936a9f865205b, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 37b12c16beb6f6c1c3c678c1aacbc46525c250f7, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b560d670c87d7d40b3cf6949246fa4c7aa65a00a, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 51fce708ab8986a9879ee5da946a2cc120f1036d, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < a21d2f323b5a978dedf9ff1d50f101f85e39b3f2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 69534c48ba8ce552ce383b3dfdb271ffe51820c3, 2.6.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/e7786c445bb67a9a6e64f66ebd6b7215b153ff7d
git.kernel.orghttps://git.kernel.org/stable/c/e14dca613e0a6ddc2bf6e360f16936a9f865205b
git.kernel.orghttps://git.kernel.org/stable/c/37b12c16beb6f6c1c3c678c1aacbc46525c250f7
git.kernel.orghttps://git.kernel.org/stable/c/b560d670c87d7d40b3cf6949246fa4c7aa65a00a
git.kernel.orghttps://git.kernel.org/stable/c/51fce708ab8986a9879ee5da946a2cc120f1036d
git.kernel.orghttps://git.kernel.org/stable/c/a21d2f323b5a978dedf9ff1d50f101f85e39b3f2
git.kernel.orghttps://git.kernel.org/stable/c/5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6
git.kernel.orghttps://git.kernel.org/stable/c/69534c48ba8ce552ce383b3dfdb271ffe51820c3

07 Fixed in

Debian 12

linux
Fixed in 5.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.17.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.