Home/CVE/A use-after-free flaw was found in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of P
CVE

CVE-2022-1048

A use-after-free flaw was found in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of P

A use-after-free flaw was found in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the system.

HIGH · CVSS 7 EPSS 0.00025
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

17
linux kernel>= 2.6.12 and < 4.14.279
linux kernel>= 4.15 and < 4.19.243
linux kernel>= 4.20 and < 5.4.193
linux kernel>= 5.5 and < 5.10.109
linux kernel>= 5.11 and < 5.15.32
linux kernel>= 5.16 and < 5.16.18
linux kernelall versions
redhat enterprise linuxall versions
▣

Scoring & Timeline

7
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Apr 2022 · 04:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

30
suse-csafSUSE-SU-2026:0385-1
rhsaRHSA-2022:8267Low
rhsaRHSA-2022:7683Moderate
suse-csafSUSE-SU-2025:1293-1
suse-csafSUSE-SU-2025:1263-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=2066706Issue TrackingThird Party Advisory
https://lore.kernel.org/lkml/20220322170720.3529-5-tiwai%40suse.de/T/#m1d3b791b815556012c6be92f1c4a7086b854f7f3Mailing ListPatch
https://security.netapp.com/advisory/ntap-20220629-0001/Third Party Advisory
https://www.debian.org/security/2022/dsa-5127Third Party Advisory
https://www.debian.org/security/2022/dsa-5173Third Party Advisory
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