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Commit 3ee69014 authored by Eric W. Biederman's avatar Eric W. Biederman
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ipc/mqueue: The mqueue filesystem should never contain executables 



Set SB_I_NOEXEC on mqueuefs to ensure small implementation mistakes
do not result in executable on mqueuefs by accident.

Acked-by: default avatarSeth Forshee <seth.forshee@canonical.com>
Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
parent 29a517c2

ipc/mqueue.c

+1 −0
Original line number Diff line number Diff line
@@ -307,6 +307,7 @@ static int mqueue_fill_super(struct super_block *sb, void *data, int silent) 
	struct inode *inode;

	struct ipc_namespace *ns = sb->s_fs_info;



	sb->s_iflags |= SB_I_NOEXEC;

	sb->s_blocksize = PAGE_SIZE;

	sb->s_blocksize_bits = PAGE_SHIFT;

	sb->s_magic = MQUEUE_MAGIC;