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authorJohan Hovold <johan@kernel.org>2021-12-01 14:25:27 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-21 10:14:52 +0100
commit433b7cd1e702b0918ef90cbf06c3da24313625d2 (patch)
tree3bfe692bdd9e3d13aae9916b19ec7e7f1782c401 /tools/perf/scripts/python/export-to-postgresql.py
parent47a1db8e797da01a1309bf42e0c0d771d4e4d4f3 (diff)
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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