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selinux: allow per-file labeling for cgroupfs

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This patch allows genfscon per-file labeling for cgroupfs. For instance,
this allows to label the "release_agent" file within each
cgroup mount and limit writes to it.

Signed-off-by: Antonio Murdaca <[email protected]>
[PM: subject line and merge tweaks]
Signed-off-by: Paul Moore <[email protected]>
This commit is contained in:
Antonio Murdaca authored and Paul Moore committed 2017-08-22 15:38:18 -04:00
1 parent 5d72801538
commit 901ef845fa
1 file changed
+3 -1
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security/selinux/hooks.c
+3 -1
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@@ -815,7 +815,9 @@ static int selinux_set_mnt_opts(struct super_block *sb,
if (!strcmp(sb->s_type->name, "debugfs") ||
!strcmp(sb->s_type->name, "tracefs") ||
!strcmp(sb->s_type->name, "sysfs") ||
!strcmp(sb->s_type->name, "pstore"))
!strcmp(sb->s_type->name, "pstore") ||
!strcmp(sb->s_type->name, "cgroup") ||
!strcmp(sb->s_type->name, "cgroup2"))
sbsec->flags |= SE_SBGENFS;
if (!sbsec->behavior) {