UBUNTU-CVE-2021-47211
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix null pointer dereference on pointer cs_desc The pointer cs_desc return from snd_usb_find_clock_source could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference.
02 / AFFECTED SOFTWARE
Affected packages
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
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39 explicit affected versions
105 explicit affected versions
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107 explicit affected versions
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10 explicit affected versions
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1 explicit affected versions
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35 explicit affected versions
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7 explicit affected versions
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12 explicit affected versions
1 explicit affected versions
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94 explicit affected versions
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78 explicit affected versions
1 explicit affected versions
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77 explicit affected versions
12 explicit affected versions
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108 explicit affected versions
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8 explicit affected versions
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10 explicit affected versions
97 explicit affected versions
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61 explicit affected versions
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95 explicit affected versions
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16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
37 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix null pointer dereference on pointer cs_desc The pointer cs_desc return from snd_usb_find_clock_source could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/b97053df0f04747c3c1e021ecbe99db675342954
- https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739
- https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954
- https://ubuntu.com/security/CVE-2021-47211
- https://ubuntu.com/security/notices/USN-7553-1
- https://ubuntu.com/security/notices/USN-7553-2
- https://ubuntu.com/security/notices/USN-7553-3
- https://ubuntu.com/security/notices/USN-7553-4
- https://ubuntu.com/security/notices/USN-7553-5
- https://ubuntu.com/security/notices/USN-7553-6
- https://ubuntu.com/security/notices/USN-7554-1
- https://ubuntu.com/security/notices/USN-7554-2
- https://ubuntu.com/security/notices/USN-7554-3
- https://ubuntu.com/security/notices/USN-7585-1
- https://ubuntu.com/security/notices/USN-7585-2
- https://ubuntu.com/security/notices/USN-7585-3
- https://ubuntu.com/security/notices/USN-7585-4
- https://ubuntu.com/security/notices/USN-7585-5
- https://ubuntu.com/security/notices/USN-7585-6
- https://ubuntu.com/security/notices/USN-7585-7
- https://ubuntu.com/security/notices/USN-7640-1
- https://www.cve.org/CVERecord?id=CVE-2021-47211