vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2024-35863

smb: client: fix potential UAF in is_valid_oplock_break()

HIGH
7.8
CVSS Score
Published: May 19, 2024 at 08:34 AM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in is_valid_oplock_break() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.

Affected

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

Linux Kernel· Linux
95%
v ≥ 3.12.483.12.48 ≤ v < 3.133.13 ≤ v < 6.1.853.13 ≤ v < 6.6.263.13 ≤ v < 6.8.53.13 ≤ v < 6.96.0 ≤ v < 6.1.856.2 ≤ v < 6.6.266.7 ≤ v < 6.8.53.12.486.9 rc16.9 rc27f48558e6489d032b1584b0cc9ac4bb11072c034a67172a013953664b1dad03c648200c70b90506c
Vendor states this is fixed in 0a15ba88a32fa7a516aff7ffd27befed5334dff2 (fixed)
Vendor states this is fixed in 16d58c6a7db5050b9638669084b63fc05f951825 (fixed)
Vendor states this is fixed in 494c91e1e9413b407d12166a61b84200d4d54fac (fixed)
Vendor states this is fixed in 69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29 (fixed)
Vendor states this is fixed in 3.13 (unaffected)
Vendor states this is fixed in 6.1.85 (unaffected)
Vendor states this is fixed in 6.6.26 (unaffected)
Vendor states this is fixed in 6.8.5 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0a15ba88a32fa7a516aff7ffd27befed5334dff2
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/16d58c6a7db5050b9638669084b63fc05f951825
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/494c91e1e9413b407d12166a61b84200d4d54fac
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card