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authorJakub Kicinski <kuba@kernel.org>2025-11-13 12:32:50 -0800
committerJakub Kicinski <kuba@kernel.org>2025-11-13 12:35:38 -0800
commitc99ebb6132595b4b288a413981197eb076547c5a (patch)
tree6ef2de29b7afb5f1107b8e11489c09f0a5290260 /mm/slub.c
parentf694d215d34035cc64b1d176fd82db0d1f2428d4 (diff)
parentd0309c054362a235077327b46f727bc48878a3bc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.18-rc6). No conflicts, adjacent changes in: drivers/net/phy/micrel.c 96a9178a29a6 ("net: phy: micrel: lan8814 fix reset of the QSGMII interface") 61b7ade9ba8c ("net: phy: micrel: Add support for non PTP SKUs for lan8814") and a trivial one in tools/testing/selftests/drivers/net/Makefile. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/slub.c b/mm/slub.c
index d4367f25b20d..1bf65c421325 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2046,7 +2046,11 @@ static inline void mark_objexts_empty(struct slabobj_ext *obj_exts)
if (slab_exts) {
unsigned int offs = obj_to_index(obj_exts_slab->slab_cache,
obj_exts_slab, obj_exts);
- /* codetag should be NULL */
+
+ if (unlikely(is_codetag_empty(&slab_exts[offs].ref)))
+ return;
+
+ /* codetag should be NULL here */
WARN_ON(slab_exts[offs].ref.ct);
set_codetag_empty(&slab_exts[offs].ref);
}
@@ -4666,8 +4670,12 @@ new_objects:
if (kmem_cache_debug(s)) {
freelist = alloc_single_from_new_slab(s, slab, orig_size, gfpflags);
- if (unlikely(!freelist))
+ if (unlikely(!freelist)) {
+ /* This could cause an endless loop. Fail instead. */
+ if (!allow_spin)
+ return NULL;
goto new_objects;
+ }
if (s->flags & SLAB_STORE_USER)
set_track(s, freelist, TRACK_ALLOC, addr,