CVE-2022-50049
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50049
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50049.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-50049
- Downstream
- Related
- Published
- 2025-06-18T11:01:49Z
- Modified
- 2025-10-13T23:50:00.294247Z
- Summary
- ASoC: DPCM: Don't pick up BE without substream
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ASoC: DPCM: Don't pick up BE without substream
When DPCM tries to add valid BE connections at dpcmaddpaths(), it doesn't check whether the picked BE actually supports for the given stream direction. Due to that, when an asymmetric BE stream is present, it picks up wrongly and this may result in a NULL dereference at a later point where the code assumes the existence of a corresponding BE substream.
This patch adds the check for the presence of the substream for the target BE for avoiding the problem above.
Note that we have already some fix for non-existing BE substream at commit 6246f283d5e0 ("ASoC: dpcm: skip missing substream while applying symmetry"). But the code path we've hit recently is rather happening before the previous fix. So this patch tries to fix at picking up a BE instead of parsing BE lists.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc474bb800000d1a93624f6d060e2bba16edf6820Fixedaa803e6ecac78e93b24ebefa17c207d6392d8ad4
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbbf7d3b1c4f40eb02dd1dffb500ba00b0bff0303Fixed6a840e8ef6b6c56d1b7e6a555adc31135e517875
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbbf7d3b1c4f40eb02dd1dffb500ba00b0bff0303Fixed754590651ccbbcc74a7c20907be4bb15d642bde3
Affected versions
v5.*
v5.16
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v5.19.1
v5.19.2
v5.19.3
Database specific
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"id": "CVE-2022-50049-47e6cca3",
"target": {
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"file": "sound/soc/soc-pcm.c"
},
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"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@aa803e6ecac78e93b24ebefa17c207d6392d8ad4"
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"id": "CVE-2022-50049-52dd72ea",
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}