X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=fs%2Fexec.c;h=282240afe99e5e223b1732c4c1b58245d90618d8;hb=df8dc74e8a383eaf2d9b44b80a71ec6f0e52b42e;hp=4ccaaa4b13b229ec17456789ead9aad76c8078bf;hpb=d06fc1d9b5518582f4982f908e820f2303d1eece;p=powerpc.git

diff --git a/fs/exec.c b/fs/exec.c
index 4ccaaa4b13..282240afe9 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1780,6 +1780,12 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
 	   but keep the previous behaviour for now. */
 	if (!ispipe && !S_ISREG(inode->i_mode))
 		goto close_fail;
+	/*
+	 * Dont allow local users get cute and trick others to coredump
+	 * into their pre-created files:
+	 */
+	if (inode->i_uid != current->fsuid)
+		goto close_fail;
 	if (!file->f_op)
 		goto close_fail;
 	if (!file->f_op->write)