On 11/6/22 11:46, Hyeonggon Yoo wrote:
On Fri, Nov 04, 2022 at 11:35:34PM -0700, Kees Cook wrote:
The "caller" argument was accidentally being ignored in a few places that were recently refactored. Restore these "caller" arguments, instead of _RET_IP_.
Cc: Hyeonggon Yoo 42.hyeyoo@gmail.com
Acked-by: Hyeonggon Yoo 42.hyeyoo@gmail.com
Cc: Vlastimil Babka vbabka@suse.cz Cc: Christoph Lameter cl@linux.com Cc: Pekka Enberg penberg@kernel.org Cc: David Rientjes rientjes@google.com Cc: Joonsoo Kim iamjoonsoo.kim@lge.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Roman Gushchin roman.gushchin@linux.dev Cc: linux-mm@kvack.org Fixes: 11e9734bcb6a ("mm/slab_common: unify NUMA and UMA version of tracepoints") Cc: stable@vger.kernel.org
BTW I think it can be just sent to next release candidate. The referred commit was merged in this development cycle.
Yep, dropped the Cc stable for that reason. Pushed to slab/for-6.1-rc4/fixes and will send a PR to Linus in few days. Thanks!
Signed-off-by: Kees Cook keescook@chromium.org
mm/slab_common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/slab_common.c b/mm/slab_common.c index 33b1886b06eb..0e614f9e7ed7 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -941,7 +941,7 @@ void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller if (unlikely(size > KMALLOC_MAX_CACHE_SIZE)) { ret = __kmalloc_large_node(size, flags, node);
trace_kmalloc(_RET_IP_, ret, size,
trace_kmalloc(caller, ret, size, PAGE_SIZE << get_order(size), flags, node);@@ -953,7 +953,7 @@ void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller ret = __kmem_cache_alloc_node(s, flags, node, size, caller); ret = kasan_kmalloc(s, ret, size, flags);
- trace_kmalloc(_RET_IP_, ret, size, s->size, flags, node);
- trace_kmalloc(caller, ret, size, s->size, flags, node); return ret;
} -- 2.34.1
Thanks for catching this!