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| author | Johan Hovold <johan@kernel.org> | 2021-12-01 14:25:27 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-01-14 18:50:52 -0500 |
| commit | 1b656e9aad7f4886ed466094d1dc5ee4dd900d20 (patch) | |
| tree | c4949f1f63be97950852a2289dcc3f4fecfb5dcd /net/bluetooth/hidp | |
| parent | 6004e351da50565fb561be85d45151dc9c370023 (diff) | |
| download | linux-stable-1b656e9aad7f4886ed466094d1dc5ee4dd900d20.tar.gz linux-stable-1b656e9aad7f4886ed466094d1dc5ee4dd900d20.tar.bz2 linux-stable-1b656e9aad7f4886ed466094d1dc5ee4dd900d20.zip | |
firmware: qemu_fw_cfg: fix sysfs information leak
Make sure to always NUL-terminate file names retrieved from the firmware
to avoid accessing data beyond the entry slab buffer and exposing it
through sysfs in case the firmware data is corrupt.
Fixes: 75f3e8e47f38 ("firmware: introduce sysfs driver for QEMU's fw_cfg device")
Cc: stable@vger.kernel.org # 4.6
Cc: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211201132528.30025-4-johan@kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'net/bluetooth/hidp')
0 files changed, 0 insertions, 0 deletions