From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Thu, 17 Oct 2024 12:54:43 +0000 (+0200)
Subject: linux-user/ppc: Fix sigmask endianness issue in sigreturn
X-Git-Tag: v9.0.4~41
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8fe8cd6d8bf3c147b13282655d542298c9185b9f;p=thirdparty%2Fqemu.git

linux-user/ppc: Fix sigmask endianness issue in sigreturn

do_setcontext() copies the target sigmask without endianness handling
and then uses target_to_host_sigset_internal(), which expects a
byte-swapped one. Use target_to_host_sigset() instead.

Fixes: bcd4933a23f1 ("linux-user: ppc signal handling")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20241017125811.447961-2-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 8704132805cf7a3259d1c5a073b3c2b92afa2616)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---

diff --git a/linux-user/ppc/signal.c b/linux-user/ppc/signal.c
index 652038a53ce..fa6161b4d29 100644
--- a/linux-user/ppc/signal.c
+++ b/linux-user/ppc/signal.c
@@ -627,7 +627,7 @@ static int do_setcontext(struct target_ucontext *ucp, CPUPPCState *env, int sig)
     if (!lock_user_struct(VERIFY_READ, mcp, mcp_addr, 1))
         return 1;
 
-    target_to_host_sigset_internal(&blocked, &set);
+    target_to_host_sigset(&blocked, &set);
     set_sigmask(&blocked);
     restore_user_regs(env, mcp, sig);