CVE-2022-49416

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49416
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49416.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49416
Related
Published
2025-02-26T07:01:18Z
Modified
2025-02-27T20:50:43.162242Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: fix use-after-free in chanctx code

In ieee80211vifusereservedcontext(), when we have an old context and the new context's replacestate is set to IEEE80211CHANCTXREPLACENONE, we free the old context in ieee80211vifusereservedreassign(). Therefore, we cannot check the old_ctx anymore, so we should set it to NULL after this point.

However, since the newctx replace state is clearly not IEEE80211CHANCTXREPLACESOTHER, we're not going to do anything else in this function and can just return to avoid accessing the freed old_ctx.

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
5.10.127-1

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

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
5.18.5-1

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
5.18.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}