CVE-2022-50358: brcmfmac: return error when getting invalid max_flowrings from dongle
Vulnerability summary
CVE-2022-50358 is a medium (CVSS 4.2) vulnerability in linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 22.2% of scored vulnerabilities.
Not severe (CVSS 4.2, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 17-09-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: brcmfmac: return error when getting invalid max_flowrings from dongle When firmware hit trap at initialization, host will read abnormal max_flowrings number from dongle, and it will cause kernel panic when doing iowrite to initialize dongle ring. To detect this error at early stage, we directly return error when getting invalid max_flowrings(>256).
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated4.2MediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.2MediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST4.2MediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.29% 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 causeNo weakness data has been published for this record.
Affected systems
Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu121 products
- linuxAll versions (No fix recorded) | < 5.4.0-144.161 | < 5.15.0-69.76
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1097.105 | < 5.15.0-1033.37
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 9e37f045d5e7f33450515f237c2f6f6bfee137dd, < 3cc9299036bdb647408e11e41de3eb1ff6d428cd | ≥ 9e37f045d5e7f33450515f237c2f6f6bfee137dd, < 2e8bb402b060a6c22160de3d72cee057698177c8 | ≥ 9e37f045d5e7f33450515f237c2f6f6bfee137dd, < 10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6 | ≥ 9e37f045d5e7f33450515f237c2f6f6bfee137dd, < 87f126b25fa8562196f0f4c0aa46a446026199bf | ≥ 9e37f045d5e7f33450515f237c2f6f6bfee137dd, < 200347eb3b2608cc8b54c13dd1d5e03809ba2eb2 | ≥ 9e37f045d5e7f33450515f237c2f6f6bfee137dd, < 2aca4f3734bd717e04943ddf340d49ab62299a00 | 3.17
- linux_kernel< 5.4.229 | ≥ 5.5, < 5.10.163 | ≥ 5.11, < 5.15.86 | ≥ 5.16, < 6.0.16 | ≥ 6.1, < 6.1.2
Debian1 product
- linux< 6.1.4-1
3 vendors · 124 products
