forge/linux-uconsole
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions

parisc: Handle kgdb breakpoints only in kernel context

Browse source 
commit 6888ff04e3 upstream.

The kernel kgdb break instructions should only be handled when running
in kernel context.

Cc: <stable@vger.kernel.org> # v5.4+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Helge Deller 2023-05-24 14:34:58 +02:00 • committed by Greg Kroah-Hartman
commit de0d7dd5ef
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
arch/parisc/kernel/traps.c
View file

@ -305,8 +305,8 @@ static void handle_break(struct pt_regs *regs)
#endif
#ifdef CONFIG_KGDB
if (unlikely(iir == PARISC_KGDB_COMPILED_BREAK_INSN ||
iir == PARISC_KGDB_BREAK_INSN)) {
if (unlikely((iir == PARISC_KGDB_COMPILED_BREAK_INSN ||
iir == PARISC_KGDB_BREAK_INSN)) && !user_mode(regs)) {
kgdb_handle_exception(9, SIGTRAP, 0, regs);
return;
}