fileattr_set_prepare() should check if project ID is valid, otherwise dqget() will return NULL for such project ID quota. Signed-off-by: Wang Shilong <wshilong@xxxxxxx> --- v1->v2: try to fix in the VFS --- fs/ioctl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ioctl.c b/fs/ioctl.c index 1e2204fa9963..5db5b218637b 100644 --- a/fs/ioctl.c +++ b/fs/ioctl.c @@ -845,6 +845,9 @@ static int fileattr_set_prepare(struct inode *inode, if (fa->fsx_cowextsize == 0) fa->fsx_xflags &= ~FS_XFLAG_COWEXTSIZE; + if (!projid_valid(KPROJIDT_INIT(fa->fsx_projid))) + return -EINVAL; + return 0; } -- 2.27.0
