Bug ID 1059075
Summary -fstack-clash-protection writes beyond array bounds
Classification openSUSE
Product openSUSE Tumbleweed
Version Current
Hardware Other
OS Other
Status NEW
Severity Normal
Priority P5 - None
Component Basesystem
Assignee rguenther@suse.com
Reporter schwab@suse.com
QA Contact qa-bugs@suse.de
Found By ---
Blocker ---

When allocating a zero-length array with alloca or as a VLA the code produced
by -fstack-clash-protection accesses the array beyond bounds.  The failure can
best be seen on armv7 (or targets without their own probe_stack insn) where a
stack probe is destructive, and where it breaks glibc.


You are receiving this mail because: