Oleg Nesterov c7b4133c48 uprobes: sanitiize xol_free_insn_slot() ... 1. Clear utask->xol_vaddr unconditionally, even if this addr is not valid, xol_free_insn_slot() should never return with utask->xol_vaddr != NULL. 2. Add a comment to explain why do we need to validate slot_addr. 3. Simplify the validation above. We can simply check offset < PAGE_SIZE, unsigned underflows are fine, it should work if slot_addr < area->vaddr. 4. Kill the unnecessary "slot_nr >= UINSNS_PER_PAGE" check, slot_nr must be valid if offset < PAGE_SIZE. The next patches will cleanup this function even more. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20240929144235.GA9471@redhat.com		2024-10-07 09:28:44 +02:00
..
callchain.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
core.c	[tree-wide] finally take no_llseek out	2024-09-27 08:18:43 -07:00
hw_breakpoint_test.c	perf/hw_breakpoint: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:52 -07:00
hw_breakpoint.c	perf/hw_breakpoint: Remove arch breakpoint hooks	2023-08-16 23:54:50 +10:00
internal.h	perf/aux: Fix AUX buffer serialization	2024-09-04 18:22:56 +02:00
Makefile	perf/hw_breakpoint: Add KUnit test for constraints accounting	2022-08-30 10:56:20 +02:00
ring_buffer.c	perf/aux: Fix AUX buffer serialization	2024-09-04 18:22:56 +02:00
uprobes.c	uprobes: sanitiize xol_free_insn_slot()	2024-10-07 09:28:44 +02:00