CVE-2022-49030

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49030
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49030.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49030
Related
Published
2024-10-21T20:15:13Z
Modified
2024-10-24T21:50:24.020986Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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

libbpf: Handle size overflow for ringbuf mmap

The maximum size of ringbuf is 2GB on x86-64 host, so 2 * maxentries will overflow u32 when mapping producer page and data pages. Only casting maxentries to sizet is not enough, because for 32-bits application on 64-bits kernel the size of read-only mmap region also could overflow sizet.

So fixing it by casting the size of read-only mmap region into a __u64 and checking whether or not there will be overflow during mmap.

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
5.10.158-1

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

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
6.0.12-1

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
6.0.12-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}