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List:       git-commits-head
Subject:    parisc: Fix SIGSYS signals in compat case
From:       "Linux Kernel Mailing List" <linux-kernel () vger ! kernel ! org>
Date:       2016-03-31 12:57:33
Message-ID: 20160331125733.4AA1D660EF5 () gitolite ! kernel ! org
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Web:        https://git.kernel.org/torvalds/c/4f4acc9472e54ce702f1d85fc9e6d57767dec91f
Commit:     4f4acc9472e54ce702f1d85fc9e6d57767dec91f
Parent:     b562e44f507e863c6792946e4e1b1449fbbac85d
Refname:    refs/heads/master
Author:     Helge Deller <deller@gmx.de>
AuthorDate: Wed Mar 30 14:11:50 2016 +0200
Committer:  Helge Deller <deller@gmx.de>
CommitDate: Thu Mar 31 12:28:37 2016 +0200

    parisc: Fix SIGSYS signals in compat case
    
    Signed-off-by: Helge Deller <deller@gmx.de>
    Cc: stable@vger.kernel.org # v4.5
---
 arch/parisc/include/asm/compat.h | 7 +++++++
 arch/parisc/kernel/signal32.c    | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 0448a2c..3387307 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -183,6 +183,13 @@ typedef struct compat_siginfo {
 			int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
 			int _fd;
 		} _sigpoll;
+
+		/* SIGSYS */
+		struct {
+			compat_uptr_t _call_addr; /* calling user insn */
+			int _syscall;	/* triggering system call number */
+			compat_uint_t _arch;	/* AUDIT_ARCH_* of syscall */
+		} _sigsys;
 	} _sifields;
 } compat_siginfo_t;
 
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 984abbe..c342b2e 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -371,6 +371,11 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
 			val = (compat_int_t)from->si_int;
 			err |= __put_user(val, &to->si_int);
 			break;
+		case __SI_SYS >> 16:
+			err |= __put_user(ptr_to_compat(from->si_call_addr), &to->si_call_addr);
+			err |= __put_user(from->si_syscall, &to->si_syscall);
+			err |= __put_user(from->si_arch, &to->si_arch);
+			break;
 		}
 	}
 	return err;
--
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