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CVE-2024-50091

dm vdo: don't refer to dedupe_context after releasing it

MEDIUM
5.5
CVSS Score
Published: November 5, 2024 at 05:04 PM UTC
Updated: August 5, 2026 at 12:05 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: dm vdo: don't refer to dedupe_context after releasing it Clear the dedupe_context pointer in a data_vio whenever ownership of the context is lost, so that vdo can't examine it accidentally.

Affected

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

Linux Kernel· Linux
95%
v < 6.11.46.9 ≤ v < 6.11.46.9 ≤ v < 6.126.9cfaf07fae7a262865a67b6010eef3bc0a1ae50b2
Vendor states this is fixed in 0808ebf2f80b962e75741a41ced372a7116f1e26 (fixed)
Vendor states this is fixed in 63ef073084c67878d7a92e15ad055172da3f05a3 (fixed)
Vendor states this is fixed in 6.11.4 (unaffected)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

Remediation

No guide yet

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

Patch and advisory references

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0808ebf2f80b962e75741a41ced372a7116f1e26
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/63ef073084c67878d7a92e15ad055172da3f05a3

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
NVD-CWE-noinfo

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