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-rw-r--r--security/smack/smack_lsm.c8
-rw-r--r--security/yama/yama_lsm.c4
2 files changed, 5 insertions, 7 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 9d3c64af1ca9..cddf5d17bbc4 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -308,12 +308,10 @@ static int smk_copy_rules(struct list_head *nhead, struct list_head *ohead,
*/
static inline unsigned int smk_ptrace_mode(unsigned int mode)
{
- switch (mode) {
- case PTRACE_MODE_READ:
- return MAY_READ;
- case PTRACE_MODE_ATTACH:
+ if (mode & PTRACE_MODE_ATTACH)
return MAY_READWRITE;
- }
+ if (mode & PTRACE_MODE_READ)
+ return MAY_READ;
return 0;
}
diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 13c88fbcf037..0038834b558e 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -292,7 +292,7 @@ int yama_ptrace_access_check(struct task_struct *child,
return rc;
/* require ptrace target be a child of ptracer on attach */
- if (mode == PTRACE_MODE_ATTACH) {
+ if (mode & PTRACE_MODE_ATTACH) {
switch (ptrace_scope) {
case YAMA_SCOPE_DISABLED:
/* No additional restrictions. */
@@ -318,7 +318,7 @@ int yama_ptrace_access_check(struct task_struct *child,
}
}
- if (rc) {
+ if (rc && (mode & PTRACE_MODE_NOAUDIT) == 0) {
printk_ratelimited(KERN_NOTICE
"ptrace of pid %d was attempted by: %s (pid %d)\n",
child->pid, current->comm, current->pid);