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| author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2023-02-16 11:22:58 +0100 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2023-02-20 10:21:01 +0100 |
| commit | 47e91fdfa511139f2549687edb0d8649b123227b (patch) | |
| tree | 1b001c5f5c7d3719e04ef278cbd1b9ff27b35d50 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 0b028189d1019ca352da108643b8f1503ee25a0e (diff) | |
HID: mcp-2221: prevent UAF in delayed work
If the device is plugged/unplugged without giving time for mcp_init_work()
to complete, we might kick in the devm free code path and thus have
unavailable struct mcp_2221 while in delayed work.
Canceling the delayed_work item is enough to solve the issue, because
cancel_delayed_work_sync will prevent the work item to requeue itself.
Fixes: 960f9df7c620 ("HID: mcp2221: add ADC/DAC support via iio subsystem")
CC: stable@vger.kernel.org
Acked-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/20230215-wip-mcp2221-v2-1-109f71fd036e@redhat.com
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions