diff options
| author | Pratyush Yadav (Google) <pratyush@kernel.org> | 2026-01-22 16:18:41 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-01-26 19:03:47 -0800 |
| commit | c657c5dc1360fa1ed1b090aedb5883d9cf9f0a0f (patch) | |
| tree | bf4d78555fe36a197207ccf1e93133ad4eab382d /mm | |
| parent | 02e117b8ca58928f193e5b4df48d6763232f5e91 (diff) | |
mm: memfd_luo: restore and free memfd_luo_ser on failure
memfd_luo_ser has the serialization metadata. It is of no use once
restoration fails. Free it on failure.
Link: https://lkml.kernel.org/r/20260122151842.4069702-4-pratyush@kernel.org
Fixes: b3749f174d68 ("mm: memfd_luo: allow preserving memfd")
Signed-off-by: Pratyush Yadav (Google) <pratyush@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memfd_luo.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/memfd_luo.c b/mm/memfd_luo.c index 01a72e4d3ef6..a34fccc23b6a 100644 --- a/mm/memfd_luo.c +++ b/mm/memfd_luo.c @@ -447,7 +447,8 @@ static int memfd_luo_retrieve(struct liveupdate_file_op_args *args) file = memfd_alloc_file("", 0); if (IS_ERR(file)) { pr_err("failed to setup file: %pe\n", file); - return PTR_ERR(file); + err = PTR_ERR(file); + goto free_ser; } vfs_setpos(file, ser->pos, MAX_LFS_FILESIZE); @@ -473,7 +474,8 @@ static int memfd_luo_retrieve(struct liveupdate_file_op_args *args) put_file: fput(file); - +free_ser: + kho_restore_free(ser); return err; } |