diff options
| author | Ross Philipson <ross.philipson@oracle.com> | 2022-02-23 21:07:35 -0500 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-03-09 12:49:44 +0100 |
| commit | 7228918b34615ef6317edcd9a058a057bc54aa32 (patch) | |
| tree | 6e5625e2d856303b3afeae0e24a79f532f28dba2 /lib/test_overflow.c | |
| parent | 5adf349439d29f92467e864f728dfc23180f3ef9 (diff) | |
x86/boot: Fix memremap of setup_indirect structures
As documented, the setup_indirect structure is nested inside
the setup_data structures in the setup_data list. The code currently
accesses the fields inside the setup_indirect structure but only
the sizeof(struct setup_data) is being memremapped. No crash
occurred but this is just due to how the area is remapped under the
covers.
Properly memremap both the setup_data and setup_indirect structures
in these cases before accessing them.
Fixes: b3c72fc9a78e ("x86/boot: Introduce setup_indirect")
Signed-off-by: Ross Philipson <ross.philipson@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1645668456-22036-2-git-send-email-ross.philipson@oracle.com
Diffstat (limited to 'lib/test_overflow.c')
0 files changed, 0 insertions, 0 deletions