[Bug 1059075] -fstack-clash-protection writes beyond array bounds

http://bugzilla.suse.com/show_bug.cgi?id=1059075 http://bugzilla.suse.com/show_bug.cgi?id=1059075#c7 --- Comment #7 from Andreas Schwab <schwab@suse.com> --- The generated code for probing "char zero[pad]": mov r6, sp add r3, r3, #7 bic r3, r3, #7 cmp r3, #4096 bcc .L128 .L186: sub r3, r3, #4096 sub sp, sp, #4096 cmp r3, #4096 str r0, [sp, #8] bcs .L186 .L128: ldr r7, [fp, #-56] sub sp, sp, r3 mov r1, #0 add r3, sp, #8 mov r0, r3 str r0, [sp, #8] The offset of #8 means that it overwrites a nearby variable. -- You are receiving this mail because: You are on the CC list for the bug.