kernel: Relax dentry_path_raw compare in core_hook (tiann#2041)

On Android-x86 (or BlissOS) it initialize Android by using switch_root or chroot, when checking a path with dentry_path_raw() it will show the whole real path instead of the path that we want. Relax the checking requirement by using strstr to look for "/system/packages.list" in the string instead of requiring the path to be "/system/packages.list" This fixes tiann#1783 Signed-off-by: hmtheboy154 <[email protected]>
LeCmnGend · Sep 29, 2024 · e3aadc3 · e3aadc3
1 parent 4152988
commit e3aadc3
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/kernel/core_hook.c b/kernel/core_hook.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/security.h>
 #include <linux/stddef.h>
+#include <linux/string.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
 #include <linux/uidgid.h>
@@ -197,7 +198,7 @@ int ksu_handle_rename(struct dentry *old_dentry, struct dentry *new_dentry)
 		return 0;
 	}
 
-	if (strcmp(buf, "/system/packages.list")) {
+	if (!strstr(buf, "/system/packages.list")) {
 		return 0;
 	}
 	pr_info("renameat: %s -> %s, new path: %s\n", old_dentry->d_iname,