Hi Mhocko, https://sourceware.org/bugzilla/show_bug.cgi?id=22851 For the above issue, I have found the patch. Patch link: https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1561935.html Only change i noticed is 'MAP_FIXED_NOREPLACE' is used instead of 'MAP_FIXED_SAFE'. I ran test case on the following targets with this patch: 1. For X86-64, Still i could see the reported issue( 'libevil.so' just runs ‘cat /etc/passwd') 2. For MIPS-64, i am not seeing the malicious file content as reported. But ‘ldd’ could not found ‘libevil.so’. root@qemumips64:~/LIN1019-1806# ldd ./main linux-vdso.so.1 (0x000000fff1f20000) libevil.so => not found libc.so.6 => /lib/libc.so.6 (0x0000005e46f70000) /lib/ld.so.1 (0x000000fff7888000) I am not clear why this patch is not working for X86-64? But it is working for MIPS-64 with some issue. Please let me know, if anything is pending on this patch for the reported issue. Thanks, Bala
