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Change History

In the Linux kernel, the following vulnerability has been resolved:

greybus: gb-beagleplay: bound bootloader receive buffering

cc1352_bootloader_rx() appends each serdev chunk into the fixed
rx_buffer before parsing bootloader packets. The helper can keep
leftover bytes between callbacks and may receive multiple packets in one
callback, so a single count value is not constrained by one packet
length.

Check that the incoming chunk fits in the remaining receive buffer space
before memcpy(). If it does not, drop the staged data and consume the
bytes instead of overflowing rx_buffer.

https://git.kernel.org/stable/c/0339a746ff7cd3f9d10f565e89c99dc93191e58d

https://git.kernel.org/stable/c/1214bf28965ceaf584fb20d357731264dd2e10e1

https://git.kernel.org/stable/c/663c2728a6d0f781044431111b53a27f71027e48

https://git.kernel.org/stable/c/fb91d4e49fcbea0b5091394ac5b8f7d4124265c3