From: Tobias Koch <tobias.k...@nonterra.com>
Analogous to what commit 5dfa88f7 did for setrlimit, this commit
selectively ignores limits for memory-related resources in prlimit64
calls. This is to prevent too restrictive limits from causing QEMU
itself to malfunction.
Signed-off-by: Tobias Koch <tobias.k...@nonterra.com>
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
Message-Id: <20200305202400.27574-1-tobias.k...@nonterra.com>
Signed-off-by: Laurent Vivier <laur...@vivier.eu>
---
linux-user/syscall.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 8d27d1080752..4f2f9eb12b59 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -11871,7 +11871,10 @@ static abi_long do_syscall1(void *cpu_env, int num,
abi_long arg1,
struct target_rlimit64 *target_rnew, *target_rold;
struct host_rlimit64 rnew, rold, *rnewp = 0;
int resource = target_to_host_resource(arg2);
- if (arg3) {
+
+ if (arg3 && (resource != RLIMIT_AS &&
+ resource != RLIMIT_DATA &&
+ resource != RLIMIT_STACK)) {
if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
return -TARGET_EFAULT;
}
--
2.25.1
