Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f49481bc50fce428521497977861b8115666dbe7 Commit: f49481bc50fce428521497977861b8115666dbe7 Parent: 2f7a2a79c3ebb44f8b1b7d9b4fd3a650eb69e544 Author: Andi Kleen <[EMAIL PROTECTED]> AuthorDate: Tue Feb 13 13:26:24 2007 +0100 Committer: Andi Kleen <[EMAIL PROTECTED]> CommitDate: Tue Feb 13 13:26:24 2007 +0100
[PATCH] x86-64: Check return value of putreg in PTRACE_SETREGS This means if an illegal value is set for the segment registers there ptrace will error out now with an errno instead of silently ignoring it. Signed-off-by: Andi Kleen <[EMAIL PROTECTED]> --- arch/x86_64/kernel/ptrace.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index addc14a..4326a69 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c @@ -536,8 +536,12 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) } ret = 0; for (ui = 0; ui < sizeof(struct user_regs_struct); ui += sizeof(long)) { - ret |= __get_user(tmp, (unsigned long __user *) data); - putreg(child, ui, tmp); + ret = __get_user(tmp, (unsigned long __user *) data); + if (ret) + break; + ret = putreg(child, ui, tmp); + if (ret) + break; data += sizeof(long); } break; - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html