CVE-2022-49531

loop: implement ->free_disk

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 02:13 AM UTC
Updated: August 4, 2026 at 04:06 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: loop: implement ->free_disk Ensure that the lo_device which is stored in the gendisk private data is valid until the gendisk is freed. Currently the loop driver uses a lot of effort to make sure a device is not freed when it is still in use, but to to fix a potential deadlock this will be relaxed a bit soon.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.18.32.6.22 ≤ v < 5.18.32.6.22 ≤ v < 5.192.6.2273285082745045bcd64333c1fbaa88f8490f2626
Vendor states this is fixed in aadd1443aae7fe8956e3b11157827067f034406a (fixed)
Vendor states this is fixed in d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9 (fixed)
Vendor states this is fixed in 2.6.22 (unaffected)
Vendor states this is fixed in 5.18.3 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/aadd1443aae7fe8956e3b11157827067f034406a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-667

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