CVE-2022-49603

ip: Fix data-races around sysctl_ip_fwd_update_priority.

MEDIUM
4.7
CVSS Score
Published: February 26, 2025 at 02:23 AM UTC
Updated: June 17, 2026 at 05:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: ip: Fix data-races around sysctl_ip_fwd_update_priority. While reading sysctl_ip_fwd_update_priority, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

Affected

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

4.19 ≤ v < 5.10.1344.19 ≤ v < 5.15.584.19 ≤ v < 5.18.154.19 ≤ v < 5.195.11 ≤ v < 5.15.585.16 ≤ v < 5.18.15432e05d328921c68c35bfdeff7d7b7400b8e3d1a5.19 rc15.19 rc25.19 rc35.19 rc45.19 rc55.19 rc65.19 rc7
Vendor states this is fixed in 11038fa781ab916535c53351537b22d6d405667d (fixed)
Vendor states this is fixed in 351f81f7d7185d18a9ff76f8f8c2fa8c4eea563b (fixed)
Vendor states this is fixed in 7bf9e18d9a5e99e3c83482973557e9f047b051e7 (fixed)
Vendor states this is fixed in bcc03369d3277ae075ed421f0c8bf4adb5e65b74 (fixed)
Vendor states this is fixed in 4.19 (unaffected)
Vendor states this is fixed in 5.10.134 (unaffected)
Vendor states this is fixed in 5.15.58 (unaffected)
Vendor states this is fixed in 5.18.15 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/11038fa781ab916535c53351537b22d6d405667d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/351f81f7d7185d18a9ff76f8f8c2fa8c4eea563b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7bf9e18d9a5e99e3c83482973557e9f047b051e7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bcc03369d3277ae075ed421f0c8bf4adb5e65b74

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.7MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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