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| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-02-09 08:48:21 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-05-15 14:59:28 -0700 |
| commit | dcb0f22282e680ee5202ab7574ce78beb3803a9f (patch) | |
| tree | dce64929607bc1cc79b08e9c207c27792988ff39 /fs/proc | |
| parent | 08cefc7ab839cf3ece44b8033968a4732eac06d8 (diff) | |
| download | linux-rpi3-dcb0f22282e680ee5202ab7574ce78beb3803a9f.tar.gz linux-rpi3-dcb0f22282e680ee5202ab7574ce78beb3803a9f.tar.bz2 linux-rpi3-dcb0f22282e680ee5202ab7574ce78beb3803a9f.zip | |
userns: Convert proc to use kuid/kgid where appropriate
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/array.c | 10 | ||||
| -rw-r--r-- | fs/proc/base.c | 16 | ||||
| -rw-r--r-- | fs/proc/inode.c | 4 | ||||
| -rw-r--r-- | fs/proc/root.c | 2 |
4 files changed, 19 insertions, 13 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c index 36a0a9192ece..dc4c5a7b9ece 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -191,8 +191,14 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns, task_tgid_nr_ns(p, ns), pid_nr_ns(pid, ns), ppid, tpid, - cred->uid, cred->euid, cred->suid, cred->fsuid, - cred->gid, cred->egid, cred->sgid, cred->fsgid); + from_kuid_munged(user_ns, cred->uid), + from_kuid_munged(user_ns, cred->euid), + from_kuid_munged(user_ns, cred->suid), + from_kuid_munged(user_ns, cred->fsuid), + from_kgid_munged(user_ns, cred->gid), + from_kgid_munged(user_ns, cred->egid), + from_kgid_munged(user_ns, cred->sgid), + from_kgid_munged(user_ns, cred->fsgid)); task_lock(p); if (p->files) diff --git a/fs/proc/base.c b/fs/proc/base.c index 2ee514c7e64a..c47904994b78 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1562,8 +1562,8 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) generic_fillattr(inode, stat); rcu_read_lock(); - stat->uid = 0; - stat->gid = 0; + stat->uid = GLOBAL_ROOT_UID; + stat->gid = GLOBAL_ROOT_GID; task = pid_task(proc_pid(inode), PIDTYPE_PID); if (task) { if (!has_pid_permissions(pid, task, 2)) { @@ -1623,8 +1623,8 @@ int pid_revalidate(struct dentry *dentry, struct nameidata *nd) inode->i_gid = cred->egid; rcu_read_unlock(); } else { - inode->i_uid = 0; - inode->i_gid = 0; + inode->i_uid = GLOBAL_ROOT_UID; + inode->i_gid = GLOBAL_ROOT_GID; } inode->i_mode &= ~(S_ISUID | S_ISGID); security_task_to_inode(task, inode); @@ -1811,8 +1811,8 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd) inode->i_gid = cred->egid; rcu_read_unlock(); } else { - inode->i_uid = 0; - inode->i_gid = 0; + inode->i_uid = GLOBAL_ROOT_UID; + inode->i_gid = GLOBAL_ROOT_GID; } inode->i_mode &= ~(S_ISUID | S_ISGID); security_task_to_inode(task, inode); @@ -2061,8 +2061,8 @@ static int map_files_d_revalidate(struct dentry *dentry, struct nameidata *nd) inode->i_gid = cred->egid; rcu_read_unlock(); } else { - inode->i_uid = 0; - inode->i_gid = 0; + inode->i_uid = GLOBAL_ROOT_UID; + inode->i_gid = GLOBAL_ROOT_GID; } security_task_to_inode(task, inode); status = 1; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 205c92280838..554ecc54799f 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -108,8 +108,8 @@ static int proc_show_options(struct seq_file *seq, struct dentry *root) struct super_block *sb = root->d_sb; struct pid_namespace *pid = sb->s_fs_info; - if (pid->pid_gid) - seq_printf(seq, ",gid=%lu", (unsigned long)pid->pid_gid); + if (!gid_eq(pid->pid_gid, GLOBAL_ROOT_GID)) + seq_printf(seq, ",gid=%u", from_kgid_munged(&init_user_ns, pid->pid_gid)); if (pid->hide_pid != 0) seq_printf(seq, ",hidepid=%u", pid->hide_pid); diff --git a/fs/proc/root.c b/fs/proc/root.c index 46a15d8a29ca..df4e4561dbbf 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -67,7 +67,7 @@ static int proc_parse_options(char *options, struct pid_namespace *pid) case Opt_gid: if (match_int(&args[0], &option)) return 0; - pid->pid_gid = option; + pid->pid_gid = make_kgid(current_user_ns(), option); break; case Opt_hidepid: if (match_int(&args[0], &option)) |