CVE-2022-3623: Linux Kernel BPF gup.c follow_page_pte race condition
Vulnerability summary
CVE-2022-3623 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 1.09% chance of exploitation in the next 30 days, higher than 65.4% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 11Timeline
- 20-10-2022PublishedVulnerability first disclosed.
- 15-04-2025Last modifiedVulnerability information updated.
Description
A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function follow_page_pte of the file mm/gup.c of the component BPF. The manipulation leads to race condition. The attack can be launched remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211921 was assigned to this vulnerability.
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA5.0MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.0MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:LDiffers
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.09%
Chance of exploitation in the next 30 days
Percentile
65%
Versus all other CVEs
30-day change
Increase +0.25 pp
From 0.84% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu88 products
- linux< 5.4.0-144.161 | < 5.15.0-60.66
- linux-aws< 5.4.0-1097.105 | < 5.15.0-1030.34
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13All versions (No fix recorded)
Debian2 products
- linux< 6.0.3-1
- debian_linuxEOL11.0
Linux2 products
- kerneln/a
- linux_kernel≥ 5.1, < 5.4.228 | ≥ 5.5, < 5.10.159 | ≥ 5.11, < 5.15.78 | ≥ 5.16, < 5.19.17 | ≥ 6.0, < 6.0.3
3 vendors · 92 products
References
22 links- vuldb.com?id.211921Third Party Advisory
