CVE-2021-47315: memory: fsl_ifc: fix leak of IO mapping on probe failure
Vulnerability summary
CVE-2021-47315 is a medium (CVSS 5.5) Reachable Assertion vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.7% 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
- 21-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: memory: fsl_ifc: fix leak of IO mapping on probe failure On probe error the driver should unmap the IO memory. Smatch reports: drivers/memory/fsl_ifc.c:298 fsl_ifc_ctrl_probe() warn: 'fsl_ifc_ctrl_dev->gregs' not released on lines: 298.
CVSS metrics
3 scores · 3 sources · 1 version- 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
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.25% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu87 products
- linuxAll versions (No fix recorded) | < 4.15.0-156.163 | < 5.4.0-88.99
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1111.118 | < 5.4.0-1057.60
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < d0d04b95e8ed0223844a1d58497c686fe2e4a955 | ≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < 6b3b002de90738e3c85853a682ce7e0fa078d42b | ≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < 94bc2fe46102d1e060fc749c0c19511e76c9995f | ≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < d9213d4f372d30b5bc4d921795d6bed0c0e3eebf | ≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < 8d071d270afba468708faca5f7b6d9e656f75e27 | ≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < 83af5816308b490b05fc8fa27fc1bdc769df200a | ≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < 28f71fd81ebd3b386bf5c7c5539664156f7d72c1 | ≥ a20cbdeffce247a2b6fb83cd8d22433994068565, < 3b132ab67fc7a358fff35e808fa65d4bea452521 | 3.3
- linux_kernel≥ 3.3, < 4.4.276 | ≥ 4.5, < 4.9.276 | ≥ 4.10, < 4.14.240 | ≥ 4.15, < 4.19.198 | ≥ 4.20, < 5.4.134 | ≥ 5.5, < 5.10.52 | ≥ 5.11, < 5.12.19 | ≥ 5.13, < 5.13.4
Debian1 product
- linux< 5.14.6-1
3 vendors · 90 products
