CVE-2024-27069

ovl: relax WARN_ON in ovl_verify_area()

MEDIUM
5.5
CVSS Score
Published: May 1, 2024 at 01:04 PM UTC
Updated: June 17, 2026 at 07:19 AM 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: ovl: relax WARN_ON in ovl_verify_area() syzbot hit an assertion in copy up data loop which looks like it is the result of a lower file whose size is being changed underneath overlayfs. This type of use case is documented to cause undefined behavior, so returning EIO error for the copy up makes sense, but it should not be causing a WARN_ON assertion.

Affected

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

6.8 ≤ v < 6.8.26.8 ≤ v < 6.96.8ca7ab482401cf0a7497dad05f4918dc64115538b
Vendor states this is fixed in 77a28aa476873048024ad56daf8f4f17d58ee48e (fixed)
Vendor states this is fixed in c3c85aefc0da1e5074a06c682542a54ccc99bdca (fixed)
Vendor states this is fixed in 6.8 (unaffected)
Vendor states this is fixed in 6.8.2 (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:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

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

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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