Avoid doing any unmounts for SysUI

This commit is contained in:
topjohnwu 2022-08-31 00:15:15 -07:00
parent 1565bf5442
commit 555a54ec53

View File

@ -154,13 +154,19 @@ DCL_HOOK_FUNC(int, fork) {
// Unmount stuffs in the process's private mount namespace
DCL_HOOK_FUNC(int, unshare, int flags) {
int res = old_unshare(flags);
if (g_ctx && (flags & CLONE_NEWNS) != 0 && res == 0) {
if (g_ctx && (flags & CLONE_NEWNS) != 0 && res == 0 &&
// For some unknown reason, unmounting app_process in SysUI can break.
// This is reproducible on the official AVD running API 26 and 27.
// Simply avoid doing any unmounts for SysUI to avoid potential issues.
g_ctx->process && g_ctx->process != "com.android.systemui"sv) {
if (g_ctx->state[DO_UNMOUNT]) {
revert_unmount();
} else {
umount2("/system/bin/app_process64", MNT_DETACH);
umount2("/system/bin/app_process32", MNT_DETACH);
}
// Restore errno back to 0
errno = 0;
}
return res;
}