Message ID | 20220808223312.53720-2-f4bug@amsat.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | [PULL,1/3] target/mips: Handle lock_user() failure in UHI_plog semihosting call | expand |
diff --git a/target/mips/tcg/sysemu/mips-semi.c b/target/mips/tcg/sysemu/mips-semi.c index 5fb1ad9092..85f0567a7f 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);