diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86_64/kernel/ptrace.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index e26e86bb56f..892212161aa 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c @@ -277,6 +277,11 @@ static int putreg(struct task_struct *child, return -EIO; value &= 0xffff; break; + case offsetof(struct user_regs_struct, rip): + /* Check if the new RIP address is canonical */ + if (value >= TASK_SIZE) + return -EIO; + break; } put_stack_long(child, regno - sizeof(struct pt_regs), value); return 0; |