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| author | Yongliang Gao <[email protected]> | 2024-10-11 12:31:53 +0800 |
|---|---|---|
| committer | Alexandre Belloni <[email protected]> | 2024-11-11 23:10:54 +0100 |
| commit | e8ba8a2bc4f60a1065f23d6a0e7cbea945a0f40d (patch) | |
| tree | 4022f1d8d35e30ba19508fe9a3c5cb75672a6aa4 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 00f1bb9b8486bc963211e6c8eae34a1e759efbd1 (diff) | |
rtc: check if __rtc_read_time was successful in rtc_timer_do_work()
If the __rtc_read_time call fails,, the struct rtc_time tm; may contain
uninitialized data, or an illegal date/time read from the RTC hardware.
When calling rtc_tm_to_ktime later, the result may be a very large value
(possibly KTIME_MAX). If there are periodic timers in rtc->timerqueue,
they will continually expire, may causing kernel softlockup.
Fixes: 6610e0893b8b ("RTC: Rework RTC code to use timerqueue for events")
Signed-off-by: Yongliang Gao <[email protected]>
Acked-by: Jingqun Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexandre Belloni <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions