CVE-2025-68370

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

coresight: tmc: add the handle of the event to the path

The handle is essential for retrieving the AUXEVENT of each CPU and is required in perf mode. It has been added to the coresightpath so that dependent devices can access it from the path when needed.

The existing bug can be reproduced with: perf record -e cs_etm//k -C 0-9 dd if=/dev/zero of=/dev/null

Showing an oops as follows: Unable to handle kernel paging request at virtual address 000f6e84934ed19e

Call trace: tmcetrgetbuffer+0x30/0x80 [coresighttmc] (P) catuenablehw+0xbc/0x3d0 [coresightcatu] catuenable+0x70/0xe0 [coresightcatu] coresightenable_path+0xb0/0x258 [coresight]