CVE-2023-53646

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/i915/perf: add sentinel to xehp_oa_b_counters<br /> <br /> Arrays passed to reg_in_range_table should end with empty record.<br /> <br /> The patch solves KASAN detected bug with signature:<br /> BUG: KASAN: global-out-of-bounds in xehp_is_valid_b_counter_addr+0x2c7/0x350 [i915]<br /> Read of size 4 at addr ffffffffa1555d90 by task perf/1518<br /> <br /> CPU: 4 PID: 1518 Comm: perf Tainted: G U 6.4.0-kasan_438-g3303d06107f3+ #1<br /> Hardware name: Intel Corporation Meteor Lake Client Platform/MTL-P DDR5 SODIMM SBS RVP, BIOS MTLPFWI1.R00.3223.D80.2305311348 05/31/2023<br /> Call Trace:<br /> <br /> ...<br /> xehp_is_valid_b_counter_addr+0x2c7/0x350 [i915]<br /> <br /> (cherry picked from commit 2f42c5afb34b5696cf5fe79e744f99be9b218798)