CVE-2022-49907

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49907
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49907.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49907
Downstream
Related
Published
2025-05-01T15:16:15Z
Modified
2025-07-01T14:23:13.919039Z
Summary
[none]
Details

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

net: mdio: fix undefined behavior in bit shift for _mdiobusregister

Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below:

UBSAN: shift-out-of-bounds in drivers/net/phy/mdiobus.c:586:27 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dumpstacklvl+0x7d/0xa5 dumpstack+0x15/0x1b ubsanepilogue+0xe/0x4e _ubsanhandleshiftoutofbounds+0x1e7/0x20c _mdiobusregister+0x49d/0x4e0 fixedmdiobusinit+0xd8/0x12d dooneinitcall+0x76/0x430 kernelinitfreeable+0x3b3/0x422 kernelinit+0x24/0x1e0 retfrom_fork+0x1f/0x30 </TASK>

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
6.0.8-1

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
6.0.8-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}