CVE-2022-49280CWE-191

CVE-2022-49280

Critical · published February 26, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
52.1
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

NFSD: prevent underflow in nfssvc_decode_writeargs()

Smatch complains:

fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs()

warn: no lower bound on 'args->len'

Change the type to unsigned to prevent this issue.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00687 · 52.1th percentile
Weakness
CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2025-02-26T12:01Z
Affected products (8)
ProductVersionsFixed in
linux/linux_kernel< 4.9.3114.9.311
linux/linux_kernel≥ 4.10, < 4.14.2764.14.276
linux/linux_kernel≥ 4.15, < 4.19.2384.19.238
linux/linux_kernel≥ 4.20, < 5.4.1895.4.189
linux/linux_kernel≥ 5.5, < 5.10.1105.10.110
linux/linux_kernel≥ 5.11, < 5.15.335.15.33
linux/linux_kernel≥ 5.16, < 5.16.195.16.19
linux/linux_kernel≥ 5.17, < 5.17.25.17.2
References (4)
https://git.kernel.org/stable/c/184416d4b98509fb4c3d8fc3d6dc1437896cc159 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2764af8ce0bf03cc43ee4a11897cab96bde6caae · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/413d8fefafe531a9442bb623e3fe292a38f88d65 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/614a61e1592051cc42d3c38f899c9f7bdaad8a1d · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 26 FEB 01:56Z
    NFSD: prevent underflow in nfssvc_decode_writeargs()
    cvelistv5