On Mon, Feb 12, 2007 at 01:36:34PM -0800, Roland McGrath wrote:
> > We're aware of two regressions compared to mainline if ptrace is utrace:
>
> Thanks very much for bringing these to my attention.
>
> > 1) zero holes for PTRACE_PEEKUSR vanished.
>
> I've fixed this in the current patches.
Looking at mainline x86_64 ptrace code I think hole for u_debugreg[4]
and [5] is also needed.
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -687,6 +687,8 @@ EXPORT_SYMBOL_GPL(utrace_x86_64_native);
#ifdef CONFIG_PTRACE
static const struct ptrace_layout_segment x86_64_uarea[] = {
{0, sizeof(struct user_regs_struct), 0, 0},
+ {sizeof(struct user_regs_struct),
+ offsetof(struct user, u_debugreg[0]), -1, 0},
{offsetof(struct user, u_debugreg[0]),
offsetof(struct user, u_debugreg[4]), 3, 0},
{offsetof(struct user, u_debugreg[6]),
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
