A gentle ping. On 2024/5/22 19:59, libao...@huaweicloud.com wrote:
From: Baokun Li <libaok...@huawei.com>Hi all! There are some fixes for some cachefiles generic processes. We found these issues when testing the on-demand mode, but the non-on-demand mode is also involved. The following is a brief overview of the patches, see the patches for more details. Patch 1-2: Add fscache_try_get_volume() helper function to avoid fscache_volume use-after-free on cache withdrawal. Patch 3: Fix cachefiles_lookup_cookie() and cachefiles_withdraw_cache() concurrency causing cachefiles_volume use-after-free. Patch 4-5: Propagate error codes returned by vfs_getxattr() to avoid endless loops. Comments and questions are, as always, welcome. Thanks, Baokun Baokun Li (5): netfs, fscache: export fscache_put_volume() and add fscache_try_get_volume() cachefiles: fix slab-use-after-free in fscache_withdraw_volume() cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie() cachefiles: correct the return value of cachefiles_check_volume_xattr() cachefiles: correct the return value of cachefiles_check_auxdata() fs/cachefiles/cache.c | 45 +++++++++++++++++++++++++++++++++- fs/cachefiles/volume.c | 1 - fs/cachefiles/xattr.c | 5 +++- fs/netfs/fscache_volume.c | 14 +++++++++++ fs/netfs/internal.h | 2 -- include/linux/fscache-cache.h | 6 +++++ include/trace/events/fscache.h | 4 +++ 7 files changed, 72 insertions(+), 5 deletions(-)
-- With Best Regards, Baokun Li
