From 6b2daec19094a90435abe67d16fb43b1a5527254 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 21 Apr 2019 18:53:50 -0400 Subject: [PATCH] fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP Unlike FICLONE, all of those take a pointer argument; they do need compat_ptr() applied to arg. Fixes: d79bdd52d8be ("vfs: wire up compat ioctl for CLONE/CLONE_RANGE") Fixes: 54dbc1517237 ("vfs: hoist the btrfs deduplication ioctl to the vfs") Fixes: ceac204e1da9 ("fs: make fiemap work from compat_ioctl") Signed-off-by: Al Viro Signed-off-by: Arnd Bergmann --- fs/compat_ioctl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index a7ec2d3dff92..e0226b2138d6 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1032,10 +1032,11 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, #endif case FICLONE: + goto do_ioctl; case FICLONERANGE: case FIDEDUPERANGE: case FS_IOC_FIEMAP: - goto do_ioctl; + goto found_handler; case FIBMAP: case FIGETBSZ: