CVE-2022-49997

net: lantiq_xrx200: restore buffer if memory allocation failed

MEDIUM
5.5
CVSS Score
Published: June 18, 2025 at 11:00 AM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%

Description

In the Linux kernel, the following vulnerability has been resolved: net: lantiq_xrx200: restore buffer if memory allocation failed In a situation where memory allocation fails, an invalid buffer address is stored. When this descriptor is used again, the system panics in the build_skb() function when accessing memory.

Affected

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

v ≥ 5.10.46v ≥ 5.12.13v ≥ 5.4.1285.10.46 ≤ v < 5.115.12.13 ≤ v < 5.135.13 ≤ v < 5.19.65.13 ≤ v < 6.05.13.1 ≤ v < 5.19.65.4.128 ≤ v < 5.5217395c5ab15e92a4fd84fe77fab6b0b1bb4e4565.10.465.12.135.135.13 rc75.4.1285e006cdb9b759f604c4fc69b410aab37cf45f5b46.0 rc16.0 rc270c8418469fb22a679fe5015ebe60fe15011ea437ea6cd16f1599c1eac6018751eadbc5fc736b99a
Vendor states this is fixed in 3ef2786e32d93e562cd40601248a14ae090de873 (fixed)
Vendor states this is fixed in c9c3b1775f80fa21f5bff874027d2ccb10f5d90c (fixed)
Affected range stops below 5.11, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.19.6 (unaffected)
Affected range stops below 5.5, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 6.0 (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/3ef2786e32d93e562cd40601248a14ae090de873
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c9c3b1775f80fa21f5bff874027d2ccb10f5d90c

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-401

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