CVE-2022-50403

Source
https://nvd.nist.gov/vuln/detail/CVE-2022-50403
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50403.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-50403
Downstream
Withdrawn
2025-09-23T00:59:33.355009Z
Published
2025-09-18T16:15:43Z
Modified
2025-09-22T15:10:46.679004Z
Summary
[none]
Details

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

ext4: fix undefined behavior in bit shift for ext4checkflag_values

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 fs/ext4/ext4.h:591:2 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 ext4initfs+0x5a/0x277 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
5.10.178-1

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"
}