In the Linux kernel, the following vulnerability has been resolved:
ASoC: codecs: wcd934x: handle channel mappping list correctly
Currently each channel is added as list to dai channel list, however
there is danger of adding same channel to multiple dai channel list
which endups corrupting the other list where its already added.
This patch ensures that the channel is actually free before adding to
the dai channel list and also ensures that the channel is on the list
before deleting it.
This check was missing previously, and we did not hit this issue as
we were testing very simple usecases with sequence of amixer commands.
                
            Metrics
Affected Vendors & Products
References
        History
                    Mon, 29 Sep 2025 16:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:* | |
| Metrics | cvssV3_1 
 | cvssV3_1 
 | 
Mon, 04 Nov 2024 12:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | ssvc 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: Linux
Published: 2024-05-24T15:01:49.699Z
Updated: 2025-05-04T07:12:24.711Z
Reserved: 2024-05-22T06:20:56.204Z
Link: CVE-2021-47502
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-08-04T05:39:59.770Z
 NVD
                        NVD
                    Status : Analyzed
Published: 2024-05-24T15:15:10.350
Modified: 2025-09-29T16:32:44.833
Link: CVE-2021-47502
 Redhat
                        Redhat