01 Record

CVE-2021-47256

mm/memory-failure: make sure wait for page writeback in memory_failure

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

mm/memory-failure: make sure wait for page writeback in memory_failure

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.3% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-05-21 14:19Z2 YR AGO

Last updated

2026-05-11 13:50Z3 MO AGO

Reserved

2024-04-10

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-567Unsynchronized Access to Shared Data in a Multithreaded ContextBase

Data version

5.2

Document digest

edc2e01e72a1cc39ad1ab9cc667f2020a3a91e9ab094171218526839456f080d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0bc1f8b0682caa39f45ce1e0228ebf43acb46111 to < d05267fd27a5c4f54e06daefa3035995d765ca0c, 0bc1f8b0682caa39f45ce1e0228ebf43acb46111 to < 6d210d547adc2218ef8b5bcf23518c5f2f1fd872, 0bc1f8b0682caa39f45ce1e0228ebf43acb46111 to < 566345aaabac853aa866f53a219c4b02a6beb527, 0bc1f8b0682caa39f45ce1e0228ebf43acb46111 to < 9e379da727a7a031be9b877cde7b9c34a0fb8306, 0bc1f8b0682caa39f45ce1e0228ebf43acb46111 to < 28788dc5c70597395b6b451dae4549bbaa8e2c56, 0bc1f8b0682caa39f45ce1e0228ebf43acb46111 to < e8675d291ac007e1c636870db880f837a9ea112a, 3.16—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/d05267fd27a5c4f54e06daefa3035995d765ca0c
git.kernel.orghttps://git.kernel.org/stable/c/6d210d547adc2218ef8b5bcf23518c5f2f1fd872
git.kernel.orghttps://git.kernel.org/stable/c/566345aaabac853aa866f53a219c4b02a6beb527
git.kernel.orghttps://git.kernel.org/stable/c/9e379da727a7a031be9b877cde7b9c34a0fb8306
git.kernel.orghttps://git.kernel.org/stable/c/28788dc5c70597395b6b451dae4549bbaa8e2c56
git.kernel.orghttps://git.kernel.org/stable/c/e8675d291ac007e1c636870db880f837a9ea112a

01 Record index

CVE-2021-47256

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47256

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References