CVE-2022-50358

brcmfmac: return error when getting invalid max_flowrings from dongle

State: Published
Severity: 4.2 Medium
Published: Sep 17, 2025
Updated: May 11, 2026
Reserved: Sep 17, 2025

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).

Scores

CVSS	Score	Vector	Source
3.1	4.2 Medium	CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 3cc9299036bdb647408e11e41de3eb1ff6d428cdAffected 9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 2e8bb402b060a6c22160de3d72cee057698177c8Affected 9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6Affected 9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 87f126b25fa8562196f0f4c0aa46a446026199bfAffected 9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 200347eb3b2608cc8b54c13dd1d5e03809ba2eb2Affected 9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 2aca4f3734bd717e04943ddf340d49ab62299a00Affected
LinuxLinux	3.17Affected before 3.17Not affected 5.4.229 through 5.4.Not affected 5.10.163 through 5.10.Not affected 5.15.86 through 5.15.Not affected 6.0.16 through 6.0.Not affected 6.1.2 through 6.1.*Not affected 6.2 and laterNot affected

Product

Versions

LinuxLinux

9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 3cc9299036bdb647408e11e41de3eb1ff6d428cdAffected
9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 2e8bb402b060a6c22160de3d72cee057698177c8Affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6Affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 87f126b25fa8562196f0f4c0aa46a446026199bfAffected
9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 200347eb3b2608cc8b54c13dd1d5e03809ba2eb2Affected
9e37f045d5e7f33450515f237c2f6f6bfee137dd to before 2aca4f3734bd717e04943ddf340d49ab62299a00Affected

LinuxLinux

3.17Affected
before 3.17Not affected
5.4.229 through 5.4.*Not affected
5.10.163 through 5.10.*Not affected
5.15.86 through 5.15.*Not affected
6.0.16 through 6.0.*Not affected
6.1.2 through 6.1.*Not affected
6.2 and laterNot affected

References

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