kevin/linux
1
Fork 0
Code

kmsan: add missing __user tags

Browse Source 
sparse complains that __user pointers are being passed to functions that
expect non-__user ones.  In all cases, these functions are in fact working
with user pointers, only the tag is missing.  Add it.

Link: https://lkml.kernel.org/r/20240627145754.27333-2-iii@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202406272033.KejtfLkw-lkp@intel.com/
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Ilya Leoshkevich 2024-06-27 16:57:46 +02:00 committed by Andrew Morton
parent 3a8f6f3b46
commit b072880d69
3 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
mm/kmsan/core.c
View File

@ -249,8 +249,8 @@ struct page *kmsan_vmalloc_to_page_or_null(void *vaddr)
return NULL;
}
void kmsan_internal_check_memory(void *addr, size_t size, const void *user_addr,
int reason)
void kmsan_internal_check_memory(void *addr, size_t size,
const void __user *user_addr, int reason)
{
depot_stack_handle_t cur_origin = 0, new_origin = 0;
unsigned long addr64 = (unsigned long)addr;

6
mm/kmsan/kmsan.h
View File

@ -73,7 +73,7 @@ void kmsan_print_origin(depot_stack_handle_t origin);
* @off_last corresponding to different @origin values.
*/
void kmsan_report(depot_stack_handle_t origin, void *address, int size,
int off_first, int off_last, const void *user_addr,
int off_first, int off_last, const void __user *user_addr,
enum kmsan_bug_reason reason);
DECLARE_PER_CPU(struct kmsan_ctx, kmsan_percpu_ctx);
@ -163,8 +163,8 @@ depot_stack_handle_t kmsan_internal_chain_origin(depot_stack_handle_t id);
void kmsan_internal_task_create(struct task_struct *task);
bool kmsan_metadata_is_contiguous(void *addr, size_t size);
void kmsan_internal_check_memory(void *addr, size_t size, const void *user_addr,
int reason);
void kmsan_internal_check_memory(void *addr, size_t size,
const void __user *user_addr, int reason);
struct page *kmsan_vmalloc_to_page_or_null(void *vaddr);
void kmsan_setup_meta(struct page *page, struct page *shadow,

2
mm/kmsan/report.c
View File

@ -148,7 +148,7 @@ void kmsan_print_origin(depot_stack_handle_t origin)
}
void kmsan_report(depot_stack_handle_t origin, void *address, int size,
int off_first, int off_last, const void *user_addr,
int off_first, int off_last, const void __user *user_addr,
enum kmsan_bug_reason reason)
{
unsigned long stack_entries[KMSAN_STACK_DEPTH];