From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,stable@vger.kernel.org,leon@kernel.org,jgg@ziepe.ca,balbirs@nvidia.com,hao.ge@linux.dev,akpm@linux-foundation.org
Subject: [merged mm-stable] lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations.patch removed from -mm tree
Date: Tue, 02 Jun 2026 15:24:05 -0700 [thread overview]
Message-ID: <20260602222406.5CA471F00898@smtp.kernel.org> (raw)
The quilt patch titled
Subject: lib/test_hmm: use kvfree() to free kvcalloc() allocations
has been removed from the -mm tree. Its filename was
lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Hao Ge <hao.ge@linux.dev>
Subject: lib/test_hmm: use kvfree() to free kvcalloc() allocations
Date: Wed, 13 May 2026 16:25:25 +0800
Coccinelle scripts/coccinelle/api/kfree_mismatch.cocci reports
the following warnings:
lib/test_hmm.c:1256:15-16: WARNING kvmalloc is used to allocate this memory at line 1191
lib/test_hmm.c:1257:15-16: WARNING kvmalloc is used to allocate this memory at line 1196
Fix this by replacing kfree() with kvfree() to correctly handle the
vmalloc() fallback path of kvcalloc().
Link: https://lore.kernel.org/20260513082525.154036-1-hao.ge@linux.dev
Fixes: 775465fd26a3 ("lib/test_hmm: add zone device private THP test infrastructure")
Signed-off-by: Hao Ge <hao.ge@linux.dev>
Acked-by: Balbir Singh <balbirs@nvidia.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
lib/test_hmm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/lib/test_hmm.c~lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations
+++ a/lib/test_hmm.c
@@ -1253,8 +1253,8 @@ out:
mmap_read_unlock(mm);
mmput(mm);
free_mem:
- kfree(src_pfns);
- kfree(dst_pfns);
+ kvfree(src_pfns);
+ kvfree(dst_pfns);
return ret;
}
_
Patches currently in -mm which might be from hao.ge@linux.dev are
mm-alloc_tag-replace-fixed-size-early-pfn-array-with-dynamic-linked-list.patch
alloc_tag-fix-use-after-free-in-proc-allocinfo-after-module-unload.patch
lib-test_hmm-fix-memory-leak-in-dmirror_migrate_to_system.patch
reply other threads:[~2026-06-02 22:24 UTC|newest]
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