diff mbox series

[Stable-9.0.4,31/57] linux-user/ppc: Fix sigmask endianness issue in sigreturn

Message ID 20241109120801.3295120-31-mjt@tls.msk.ru (mailing list archive)
State New
Headers show
Series Patch Round-up for stable 9.0.4, freeze on 2024-11-18 | expand

Commit Message

Michael Tokarev Nov. 9, 2024, 12:07 p.m. UTC 
From: Ilya Leoshkevich <iii@linux.ibm.com>

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 mbox series

Patch

diff --git a/linux-user/ppc/signal.c b/linux-user/ppc/signal.c
index 652038a53c..fa6161b4d2 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);