From aeeb944e7f91e9640391848c8a5ed48ec0db2367 Mon Sep 17 00:00:00 2001 From: "GONG, Ruiqi" Date: Tue, 25 Jan 2022 15:11:33 +0800 Subject: selinux: access superblock_security_struct in LSM blob way [ Upstream commit 0266c25e7c2821181b610595df42cbca6bc93cb8 ] LSM blob has been involved for superblock's security struct. So fix the remaining direct access to sb->s_security by using the LSM blob mechanism. Fixes: 08abe46b2cfc ("selinux: fall back to SECURITY_FS_USE_GENFS if no xattr support") Fixes: 69c4a42d72eb ("lsm,selinux: add new hook to compare new mount to an existing mount") Signed-off-by: GONG, Ruiqi Reviewed-by: Casey Schaufler Signed-off-by: Paul Moore Signed-off-by: Sasha Levin --- security/selinux/hooks.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'security') diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index baa12d1007c7..0981008ac7d3 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -492,7 +492,7 @@ static int selinux_is_sblabel_mnt(struct super_block *sb) static int sb_check_xattr_support(struct super_block *sb) { - struct superblock_security_struct *sbsec = sb->s_security; + struct superblock_security_struct *sbsec = selinux_superblock(sb); struct dentry *root = sb->s_root; struct inode *root_inode = d_backing_inode(root); u32 sid; @@ -2695,7 +2695,7 @@ free_opt: static int selinux_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts) { struct selinux_mnt_opts *opts = mnt_opts; - struct superblock_security_struct *sbsec = sb->s_security; + struct superblock_security_struct *sbsec = selinux_superblock(sb); u32 sid; int rc; -- cgit v1.2.3