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-rw-r--r--target/mips/tcg/sysemu/mips-semi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/target/mips/tcg/sysemu/mips-semi.c b/target/mips/tcg/sysemu/mips-semi.c
index 5fb1ad9..85f0567 100644
--- a/target/mips/tcg/sysemu/mips-semi.c
+++ b/target/mips/tcg/sysemu/mips-semi.c
@@ -321,6 +321,9 @@ void mips_semihosting(CPUMIPSState *env)
if (use_gdb_syscalls()) {
addr = gpr[29] - str->len;
p = lock_user(VERIFY_WRITE, addr, str->len, 0);
+ if (!p) {
+ report_fault(env);
+ }
memcpy(p, str->str, str->len);
unlock_user(p, addr, str->len);
semihost_sys_write(cs, uhi_cb, 2, addr, str->len);