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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-04-22 22:51:36 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-22 05:59:21 +0200 |
| commit | 187cd44e147ec7245ddd97bbd3305d29583288a9 (patch) | |
| tree | 53d312b49553b7000a1e06d055224759a5f75332 /arch/sparc/kernel/signal32.c | |
| parent | avr32: struct old_sigaction is never used (diff) | |
| download | linux-187cd44e147ec7245ddd97bbd3305d29583288a9.tar.xz linux-187cd44e147ec7245ddd97bbd3305d29583288a9.zip | |
sparc: missing checks of __get_user()/__put_user() return values
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/sparc/kernel/signal32.c')
| -rw-r--r-- | arch/sparc/kernel/signal32.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index 948700fb9036..bb1513e45f1a 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -215,8 +215,9 @@ void do_sigreturn32(struct pt_regs *regs) (((unsigned long) sf) & 3)) goto segv; - get_user(pc, &sf->info.si_regs.pc); - __get_user(npc, &sf->info.si_regs.npc); + if (get_user(pc, &sf->info.si_regs.pc) || + __get_user(npc, &sf->info.si_regs.npc)) + goto segv; if ((pc | npc) & 3) goto segv; @@ -305,8 +306,9 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) (((unsigned long) sf) & 3)) goto segv; - get_user(pc, &sf->regs.pc); - __get_user(npc, &sf->regs.npc); + if (get_user(pc, &sf->regs.pc) || + __get_user(npc, &sf->regs.npc)) + goto segv; if ((pc | npc) & 3) goto segv; |