From: Bing-Jhong Billy Jheng <billy@starlabs.sg> stable inclusion from stable-v5.10.160 commit 75454b4bbfc7e6a4dd8338556f36ea9107ddf61a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I6AUN9 CVE: CVE-2022-4696 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=l... -------------------------------- Splice is like read/write and should grab current->nsproxy, denoted by IO_WQ_WORK_FILES as it refers to current->files as well Signed-off-by: Bing-Jhong Billy Jheng <billy@starlabs.sg> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com> Reviewed-by: Zhang Yi <yi.zhang@huawei.com> Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> --- fs/io_uring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index d730d90798ec..21adb7ff7b2e 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -935,7 +935,7 @@ static const struct io_op_def io_op_defs[] = { .needs_file = 1, .hash_reg_file = 1, .unbound_nonreg_file = 1, - .work_flags = IO_WQ_WORK_BLKCG, + .work_flags = IO_WQ_WORK_BLKCG | IO_WQ_WORK_FILES, }, [IORING_OP_PROVIDE_BUFFERS] = {}, [IORING_OP_REMOVE_BUFFERS] = {}, -- 2.25.1