UBUNTU-CVE-2021-46926
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: intel-sdw-acpi: harden detection of controller The existing code currently sets a pointer to an ACPI handle before checking that it's actually a SoundWire controller. This can lead to issues where the graph walk continues and eventually fails, but the pointer was set already. This patch changes the logic so that the information provided to the caller is set when a controller is found.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
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64 explicit affected versions
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35 explicit affected versions
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10 explicit affected versions
48 explicit affected versions
7 explicit affected versions
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12 explicit affected versions
1 explicit affected versions
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81 explicit affected versions
12 explicit affected versions
96 explicit affected versions
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10 explicit affected versions
37 explicit affected versions
10 explicit affected versions
1 explicit affected versions
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84 explicit affected versions
13 explicit affected versions
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10 explicit affected versions
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94 explicit affected versions
10 explicit affected versions
26 explicit affected versions
30 explicit affected versions
13 explicit affected versions
54 explicit affected versions
16 explicit affected versions
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12 explicit affected versions
27 explicit affected versions
1 explicit affected versions
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5 explicit affected versions
8 explicit affected versions
1 explicit affected versions
10 explicit affected versions
83 explicit affected versions
13 explicit affected versions
48 explicit affected versions
7 explicit affected versions
10 explicit affected versions
12 explicit affected versions
83 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
37 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
7 explicit affected versions
55 explicit affected versions
4 explicit affected versions
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49 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
84 explicit affected versions
4 explicit affected versions
73 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: intel-sdw-acpi: harden detection of controller The existing code currently sets a pointer to an ACPI handle before checking that it's actually a SoundWire controller. This can lead to issues where the graph walk continues and eventually fails, but the pointer was set already. This patch changes the logic so that the information provided to the caller is set when a controller is found.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/385f287f9853da402d94278e59f594501c1d1dad
- https://git.kernel.org/stable/c/385f287f9853da402d94278e59f594501c1d1dad
- https://git.kernel.org/stable/c/cce476954401e3421afafb25bbaa926050688b1d
- https://ubuntu.com/security/CVE-2021-46926
- https://ubuntu.com/security/notices/USN-6973-1
- https://ubuntu.com/security/notices/USN-6973-2
- https://ubuntu.com/security/notices/USN-6973-3
- https://ubuntu.com/security/notices/USN-6973-4
- https://ubuntu.com/security/notices/USN-7006-1
- https://www.cve.org/CVERecord?id=CVE-2021-46926