brcmfmac: return error when getting invalid max_flowrings from dongle
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.2epss 0.3%
exploitation probability
0.3%top 80% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6https://git.kernel.org/stable/c/200347eb3b2608cc8b54c13dd1d5e03809ba2eb2https://git.kernel.org/stable/c/2aca4f3734bd717e04943ddf340d49ab62299a00https://git.kernel.org/stable/c/2e8bb402b060a6c22160de3d72cee057698177c8https://git.kernel.org/stable/c/3cc9299036bdb647408e11e41de3eb1ff6d428cdhttps://git.kernel.org/stable/c/87f126b25fa8562196f0f4c0aa46a446026199bf