DEBIAN-CVE-2022-50542

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Source
https://security-tracker.debian.org/tracker/CVE-2022-50542
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50542.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2022-50542
Upstream
Published
2025-10-07T16:15:38.557Z
Modified
2025-11-20T10:16:27.381771Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: media: si470x: Fix use-after-free in si470xintincallback() syzbot reported use-after-free in si470xintincallback() [1]. This indicates that urb->context, which contains struct si470xdevice object, is freed when si470xintincallback() is called. The cause of this issue is that si470xintincallback() is called for freed urb. si470xusbdriverprobe() calls si470xstartusb(), which then calls usbsubmiturb() and si470xstart(). If si470xstartusb() fails, si470xusbdriverprobe() doesn't kill urb, but it just frees struct si470xdevice object, as depicted below: si470xusbdriverprobe() ... si470xstartusb() ... usbsubmiturb() retval = si470xstart() return retval if (retval < 0) free struct si470xdevice object, but don't kill urb This patch fixes this issue by killing urb when si470xstartusb() fails and urb is submitted. If si470xstartusb() fails and urb is not submitted, i.e. submitting usb fails, it just frees struct si470x_device object.

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.178-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2
5.10.158-1
5.10.158-2
5.10.162-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}