CVE-2022-49331: nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling
Vulnerability summary
CVE-2022-49331 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19.5% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling Error paths do not free previously allocated memory. Add devm_kfree() to those failure paths.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.27% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu111 products
- linuxAll versions (No fix recorded) | < 4.15.0-192.203 | < 5.4.0-126.142 | < 5.15.0-48.54
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1140.151 | < 5.4.0-1085.92 | < 5.15.0-1020.24
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < 593773088d615a46a42c97e01a0550d192bb7f74 | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < d221ce54ce331c1a23be71eebf57f6a088632383 | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < 6fce324b530dd74750ad870699e33eeed1029ded | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < 3eca2c42daa4659965db6817479027cbc6df7899 | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < 54423649bc0ed464b75807a7cf2857a5871f738f | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < f444ecd3f57f4ba5090fe8b6756933e37de4226e | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < db836b97464d44340b568e041fd24602858713f7 | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < 55904086041ba4ee4070187b36590f8f8d6df4cd | ≥ 26fc6c7f02cb26c39c4733de3dbc3c0646fc1074, < 996419e0594abb311fb958553809f24f38e7abbe | 4.0
- linux_kernel≥ 4.0, < 4.9.318 | ≥ 4.10, < 4.14.283 | ≥ 4.15, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.122 | ≥ 5.11, < 5.15.47 | ≥ 5.16, < 5.17.15 | ≥ 5.18, < 5.18.4 | 5.19:rc1
Debian1 product
- linux< 5.18.5-1
3 vendors · 114 products