在 2022/1/24 9:03, yiyuchangchun@126.com 写道:
From: "Darrick J. Wong" <djwong@kernel.org>
mainline inclusion from mainline-v5.16-rc5 commit 983d8e60f50806f90534cc5373d0ce867e5aaf79 category: bugfix issue: #I4RVJ4 CVE: CVE-2021-4155
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
Signed-off-by: Yu Changchun <yuchangchun1@huawei.com> --------------------------------
The old ALLOCSP/FREESP ioctls in XFS can be used to preallocate space at the end of files, just like fallocate and RESVSP. Make the behavior consistent with the other ioctls.
Reported-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Guo Xuenan <guoxuenan@huawei.com> Reviewed-by: Zhang Yi <yi.zhang@huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Signed-off-by: Yu Changchun <yuchangchun1@huawei.com> --- fs/xfs/xfs_ioctl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>