CVE-2022-3533: Linux Kernel BPF usdt.c parse_usdt_arg memory leak
Vulnerability summary
CVE-2022-3533 is a medium (CVSS 5.7) Improper Resource Shutdown or Release vulnerability in linux kernel. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.7% of scored vulnerabilities.
Not severe (CVSS 3.5, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 17-10-2022PublishedVulnerability first disclosed.
- 15-04-2025Last modifiedVulnerability information updated.
Description
A vulnerability was found in Linux Kernel. It has been rated as problematic. This issue affects the function parse_usdt_arg of the file tools/lib/bpf/usdt.c of the component BPF. The manipulation of the argument reg_name leads to memory leak. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211031.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA3.5LowCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated3.5LowCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · DebianEcosystem advisory · calculated5.7MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.40% 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: adjacent network, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Linux2 products
- kerneln/a
- linux_kernel< 6.2
Debian1 product
- libbpf< 1.1.0-1
Ubuntu1 product
- libbpf< 0.5.0-1~ubuntu20.04.1 | < 0.5.0-1
3 vendors · 4 products
