Unverified Commit 42b0f8da authored by Christian Brauner's avatar Christian Brauner
Browse files

nsfs: fix ioctl declaration 



The kernel is writing an object of type __u64, so the ioctl has to be
defined to _IOR(NSIO, 0x5, __u64) instead of _IO(NSIO, 0x5).

Reported-by: default avatarDmitry V. Levin <ldv@strace.io>
Link: https://lore.kernel.org/r/20240730164554.GA18486@altlinux.org


Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent f71aa063

include/uapi/linux/nsfs.h

+2 −1
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 
#define __LINUX_NSFS_H



#include <linux/ioctl.h>

#include <linux/types.h>



#define NSIO	0xb7
@@ -16,7 +17,7 @@ 
/* Get owner UID (in the caller's user namespace) for a user namespace */

#define NS_GET_OWNER_UID	_IO(NSIO, 0x4)

/* Get the id for a mount namespace */

#define NS_GET_MNTNS_ID		_IO(NSIO, 0x5)

#define NS_GET_MNTNS_ID		_IOR(NSIO, 0x5, __u64)

/* Translate pid from target pid namespace into the caller's pid namespace. */

#define NS_GET_PID_FROM_PIDNS	_IOR(NSIO, 0x6, int)

/* Return thread-group leader id of pid in the callers pid namespace. */