Linux Kernel up to 5.6.7 mm/madvise.c do_madvise race condition

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel up to 5.6.7. This vulnerability affects the function do_madvise of the file mm/madvise.c. This manipulation causes race condition. This vulnerability is handled as CVE-2020-29372. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 5.6.7 (Operating System). Affected by this vulnerability is the function do_madvise of the file mm/madvise.c. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. The impact remains unknown.

The weakness was released 11/28/2020. The advisory is shared at bugs.chromium.org. This vulnerability is known as CVE-2020-29372. Technical details are known, but no exploit is available.

Upgrading to version 5.6.8 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

ADP CISA Base Score: 4.7
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.6.8
Patch: git.kernel.org

Timelineinfo

11/28/2020 🔍
11/28/2020 +0 days 🔍
11/28/2020 +0 days 🔍
05/30/2026 +2009 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugs.chromium.org
Status: Confirmed

CVE: CVE-2020-29372 (🔍)
GCVE (CVE): GCVE-0-2020-29372
GCVE (VulDB): GCVE-100-165421

Entryinfo

Created: 11/28/2020 18:17
Updated: 05/30/2026 16:58
Changes: 11/28/2020 18:17 (42), 12/11/2020 09:55 (5), 12/11/2020 09:57 (18), 05/30/2026 16:58 (25)
Complete: 🔍
Cache ID: 216::103

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