CVE-2024-27403

netfilter: nft_flow_offload: reset dst in route object after setting up flow

MEDIUM
5.5
CVSS Score
Published: May 17, 2024 at 11:40 AM UTC
Updated: August 5, 2026 at 12:04 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: netfilter: nft_flow_offload: reset dst in route object after setting up flow dst is transferred to the flow object, route object does not own it anymore. Reset dst in route object, otherwise if flow_offload_add() fails, error path releases dst twice, leading to a refcount underflow.

Affected

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

4.16 ≤ v < 5.15.1504.16 ≤ v < 6.1.804.16 ≤ v < 6.6.194.16 ≤ v < 6.7.74.16 ≤ v < 6.85.16 ≤ v < 6.1.806.2 ≤ v < 6.6.196.7 ≤ v < 6.7.76.8 rc16.8 rc26.8 rc36.8 rc46.8 rc5a3c90f7a2323b331ae816d5b0633e68148e25d04
Vendor states this is fixed in 012df10717da02367aaf92c65f9c89db206c15f4 (fixed)
Vendor states this is fixed in 4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c (fixed)
Vendor states this is fixed in 558b00a30e05753a62ecc7e05e939ca8f0241148 (fixed)
Vendor states this is fixed in 670548c8db44d76e40e1dfc06812bca36a61e9ae (fixed)
Vendor states this is fixed in 9e0f0430389be7696396c62f037be4bf72cf93e3 (fixed)
Vendor states this is fixed in 4.16 (unaffected)
Vendor states this is fixed in 5.15.150 (unaffected)
Vendor states this is fixed in 6.1.80 (unaffected)
Vendor states this is fixed in 6.6.19 (unaffected)
Vendor states this is fixed in 6.7.7 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/012df10717da02367aaf92c65f9c89db206c15f4
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/558b00a30e05753a62ecc7e05e939ca8f0241148
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/670548c8db44d76e40e1dfc06812bca36a61e9ae
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9e0f0430389be7696396c62f037be4bf72cf93e3

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

StatusMODIFIED
CWE
NVD-CWE-Other

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