CVE-2022-50235

NFSD: Protect against send buffer overflow in NFSv2 READDIR

HIGH
7.8
CVSS Score
Published: September 15, 2025 at 02:01 PM UTC
Updated: August 5, 2026 at 09:24 AM 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
Severity
HIGH7.8
Exploit prediction
EPSS 0.4%

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: Protect against send buffer overflow in NFSv2 READDIR Restore the previous limit on the @count argument to prevent a buffer overflow attack.

Affected

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

5.15.12 ≤ v < 5.15.755.16 ≤ v < 5.19.175.16 ≤ v < 6.0.35.16 ≤ v < 6.15.16.1 ≤ v < 5.19.176.0 ≤ v < 6.0.35.15.125.165.16 rc75.16 rc853b1119a6e5028b125f431a0116ba73510d82a729e291a6a28d32545ed2fd959a8165144d1724df1eabc0aab98e5218ceecd82069b0d6fdfff5ee885
Vendor states this is fixed in 00b4492686e0497fdb924a9d4c8f6f99377e176c (fixed)
Vendor states this is fixed in 0e57d696f60dee6117a8ace0cac7c5761d375277 (fixed)
Vendor states this is fixed in c2a878095b5c6f04f90553a3c45872f990dab14e (fixed)
Vendor states this is fixed in dc7f225090c29a5f3b9419b1af32846a201555e7 (fixed)
Vendor states this is fixed in f59c74df82f6ac9d2ea4e01aa3ae7c6c4481652d (fixed)
Vendor states this is fixed in 5.15.75 (unaffected)
Vendor states this is fixed in 5.16 (unaffected)
Vendor states this is fixed in 5.19.17 (unaffected)
Vendor states this is fixed in 6.0.3 (unaffected)
Vendor states this is fixed in 6.1 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/00b4492686e0497fdb924a9d4c8f6f99377e176c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0e57d696f60dee6117a8ace0cac7c5761d375277
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c2a878095b5c6f04f90553a3c45872f990dab14e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/dc7f225090c29a5f3b9419b1af32846a201555e7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f59c74df82f6ac9d2ea4e01aa3ae7c6c4481652d

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-787

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.

Free plan, no card