From: Prasad J Pandit <p...@fedoraproject.org> Hello,
A user program could pass large number of 'argv','env' arguments to an execve(2) call. It could lead to bad behaviour as the TARGET_NR_execve: allocates stack memory(via alloca) for these arguments. alloca(3) is better for allocations of upto one page(4KB) of stack memory. As anything more could smash stack protectors in place. This patch(v2) set attempts to fix these issues. -> https://lists.gnu.org/archive/html/qemu-devel/2017-03/msg00750.html Thank you. -- Prasad J Pandit (2): linux-user: limit number of arguments to execve linux-user: allocate heap memory for execve arguments linux-user/syscall.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) -- 2.9.3
