aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/ia32/ia32_signal.c4
-rw-r--r--arch/x86/kernel/signal_64.c11
2 files changed, 7 insertions, 8 deletions
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 0866104f684..bbed3a26ce5 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -499,8 +499,6 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
regs->cs = __USER32_CS;
regs->ss = __USER32_DS;
- set_fs(USER_DS);
-
#if DEBUG_SIG
printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
current->comm, current->pid, frame, regs->ip, frame->pretcode);
@@ -596,8 +594,6 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->cs = __USER32_CS;
regs->ss = __USER32_DS;
- set_fs(USER_DS);
-
#if DEBUG_SIG
printk(KERN_DEBUG "SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
current->comm, current->pid, frame, regs->ip, frame->pretcode);
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 3a76702dc3f..ccb2a4560c2 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -285,10 +285,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
even if the handler happens to be interrupting 32-bit code. */
regs->cs = __USER_CS;
- /* This, by contrast, has nothing to do with segment registers -
- see include/asm-x86_64/uaccess.h for details. */
- set_fs(USER_DS);
-
return 0;
give_sigsegv:
@@ -377,6 +373,13 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
if (ret == 0) {
/*
+ * This has nothing to do with segment registers,
+ * despite the name. This magic affects uaccess.h
+ * macros' behavior. Reset it to the normal setting.
+ */
+ set_fs(USER_DS);
+
+ /*
* Clear the direction flag as per the ABI for function entry.
*/
regs->flags &= ~X86_EFLAGS_DF;