The quilt patch titled Subject: mm/zswap: fix error pointer free in zswap_cpu_comp_prepare() has been removed from the -mm tree. Its filename was mm-zswap-fix-error-pointer-free-in-zswap_cpu_comp_prepare.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------ From: Pavel Butsykin pbutsykin@cloudlinux.com Subject: mm/zswap: fix error pointer free in zswap_cpu_comp_prepare() Date: Wed, 31 Dec 2025 11:46:38 +0400

crypto_alloc_acomp_node() may return ERR_PTR(), but the fail path checks only for NULL and can pass an error pointer to crypto_free_acomp(). Use IS_ERR_OR_NULL() to only free valid acomp instances.

Link: https://lkml.kernel.org/r/20251231074638.2564302-1-pbutsykin@cloudlinux.com Fixes: 779b9955f643 ("mm: zswap: move allocations during CPU init outside the lock") Signed-off-by: Pavel Butsykin pbutsykin@cloudlinux.com Reviewed-by: SeongJae Park sj@kernel.org Acked-by: Yosry Ahmed yosry.ahmed@linux.dev Acked-by: Nhat Pham nphamcs@gmail.com Cc: Johannes Weiner hannes@cmpxchg.org Cc: Chengming Zhou chengming.zhou@linux.dev Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

mm/zswap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/zswap.c~mm-zswap-fix-error-pointer-free-in-zswap_cpu_comp_prepare +++ a/mm/zswap.c @@ -787,7 +787,7 @@ static int zswap_cpu_comp_prepare(unsign return 0;

fail: - if (acomp) + if (!IS_ERR_OR_NULL(acomp)) crypto_free_acomp(acomp); kfree(buffer); return ret; _

Patches currently in -mm which might be from pbutsykin@cloudlinux.com are