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CVE-2021-47322

NFSv4: Fix an Oops in pnfs_mark_request_commit() when doing O_DIRECT

HIGH
7.8
CVSS Score
Published: May 21, 2024 at 02:35 PM UTC
Updated: June 17, 2026 at 04:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix an Oops in pnfs_mark_request_commit() when doing O_DIRECT Fix an Oopsable condition in pnfs_mark_request_commit() when we're putting a set of writes on the commit list to reschedule them after a failed pNFS attempt.

Affected

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

Linux Kernel· Linux
95%
5.11 ≤ v < 5.12.195.13 ≤ v < 5.13.45.7 ≤ v < 5.10.525.7 ≤ v < 5.12.195.7 ≤ v < 5.13.45.7 ≤ v < 5.145.79c455a8c1e146dac3a6d1405fe6a7096177b9546
Vendor states this is fixed in 3731d44bba8e0116b052b1b374476c5f6dd9a456 (fixed)
Vendor states this is fixed in 5c7ef8a3705542136a1e19b070e951f0730b2153 (fixed)
Vendor states this is fixed in 7aec9f862411906f8c27071ba65a1e110ad7d2fd (fixed)
Vendor states this is fixed in 7c96a2ee45be41d5a167e6332d202086752c36bb (fixed)
Vendor states this is fixed in 5.10.52 (unaffected)
Vendor states this is fixed in 5.12.19 (unaffected)
Vendor states this is fixed in 5.13.4 (unaffected)
Vendor states this is fixed in 5.14 (unaffected)
Vendor states this is fixed in 5.7 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3731d44bba8e0116b052b1b374476c5f6dd9a456
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5c7ef8a3705542136a1e19b070e951f0730b2153
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7aec9f862411906f8c27071ba65a1e110ad7d2fd
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7c96a2ee45be41d5a167e6332d202086752c36bb

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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