PT-2024-11213 · Linux+2 · Linux Kernel+2

Greg Kroah-Hartman + 1 · Published 2021-05-26 · Updated 2024-08-19 · CVE-2021-47166

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue concerns the corruption of the pg bytes written value in the nfs do recoalesce() function. The value of mirror->pg bytes written should only be updated after a successful attempt to flush out the requests on the list.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

CWE-99

Related Identifiers

BDU:2025-13706

CVE-2021-47166

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:1454-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

SUSE-SU-2024:1643-1

SUSE-SU-2024:1646-1

SUSE-SU-2024:1870-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 620

• https://git.kernel.org/stable/c/7087db95c0a06ab201b8ebfac6a7ec1e34257997 · Patch
• https://osv.dev/vulnerability/CVE-2021-47166 · Vendor Advisory
• https://git.kernel.org/stable/c/c757c1f1e65d89429db1409429436cf40d47c008 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1646-1 · Vendor Advisory
• https://git.kernel.org/stable/c/e8b8418ce14ae66ee55179901edd12191ab06a9e · Patch
• https://cve.org/CVERecord?id=CVE-2021-47166 · Security Note
• https://git.kernel.org/stable/c/b291baae24f876acd5a5dd57d0bb2bbac8a68b0c · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1454-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1643-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47166 · Security Note
• https://bdu.fstec.ru/vul/2025-13706 · Security Note
• https://git.kernel.org/stable/c/785917316b25685c9b3a2a88f933139f2de75e33 · Patch
• https://git.kernel.org/stable/c/0d0ea309357dea0d85a82815f02157eb7fcda39f · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-47166 · Vendor Advisory