In the Linux kernel, the following vulnerability has been resolved:
phy: rockchip-samsung-dcphy: fix out-of-range max_register
The PHY register block is 64KB, so with a register stride of 4 the
last accessible register sits at offset 0xfffc. max_register names
0x10000, one register past the end of the mapping: dumping the
registers through the regmap debugfs interface reads beyond the
ioremapped region and oopses on the unmapped page. The oops fires
with the regmap lock held, so later PHY operations deadlock.
References 3
https://git.kernel.org/stable/c/14afe18655c0951f4f85898f761bf92264e65ccd
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4486e75ba647bd8b98fc1f053101b40caceeed4b
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c1a62f9dcf531d56c56da2e4435386b6d264c69f
416baaa9-dc9f-4396-8d5f-8c081fb06d67