CVE-2022-49280

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.
Wrap or Wraparound
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
LinuxCNA
---
---
CISA-ADPADP
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
VendorProductVersion
linuxlinux_kernel
𝑥
< 4.9.311
linuxlinux_kernel
4.10 ≤
𝑥
< 4.14.276
linuxlinux_kernel
4.15 ≤
𝑥
< 4.19.238
linuxlinux_kernel
4.20 ≤
𝑥
< 5.4.189
linuxlinux_kernel
5.5 ≤
𝑥
< 5.10.110
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.33
linuxlinux_kernel
5.16 ≤
𝑥
< 5.16.19
linuxlinux_kernel
5.17 ≤
𝑥
< 5.17.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.234-1
fixed
bookworm
6.1.123-1
fixed
bookworm (security)
6.1.128-1
fixed
trixie
6.12.12-1
fixed
sid
6.12.16-1
fixed
Common Weakness Enumeration
References
https://git.kernel.org/stable/c/184416d4b98509fb4c3d8fc3d6dc1437896cc159
https://git.kernel.org/stable/c/1a33e0de60feda402d05ac8a6cf409c19ea3e0b3
https://git.kernel.org/stable/c/2764af8ce0bf03cc43ee4a11897cab96bde6caae
https://git.kernel.org/stable/c/413d8fefafe531a9442bb623e3fe292a38f88d65
https://git.kernel.org/stable/c/438068f4912183a59fcb6b7496a06437f7fd4e2b
https://git.kernel.org/stable/c/614a61e1592051cc42d3c38f899c9f7bdaad8a1d
https://git.kernel.org/stable/c/65e21cc042f4c1518c8c55283f53bc725b78419d
https://git.kernel.org/stable/c/85259340fc9bd54e3d567b41b881ecb4d0055da1
https://git.kernel.org/stable/c/9f0f048c1bfa7867d565a95fd8c28f4484ba1043