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CVE-2022-28356

MEDIUM
5.5
CVSS Score
Published: April 2, 2022 at 08:36 PM UTC
Updated: June 17, 2026 at 04:38 AM UTC
2 products affected across 2 vendorsLinux KernelDebian Linux

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c.

Affected

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

Debian Linux· Debiandrupal
95%
10.011.09.0
Linux Kernel· Linux
95%
v < 5.17.1
Affected range stops below 5.17.1, so it looks safe — our inference, not a vendor statement

References (7)

Mailing Listx_refsource_MLISTExploitThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2022/04/06/1
x_refsource_MISCPatchRelease NotesVendor Advisory
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.1
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/764f4eb6846f5475f1244767d24d25dd86528a4a
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20220506-0006/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2022/dsa-5127
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2022/dsa-5173

SSVC — Action Prioritization

SSVCPoCNot 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-Other

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