clockevents: Prevent shift out of bounds
Andrey reported that on a kernel with UBSan enabled he found: UBSan: Undefined behaviour in ../kernel/time/clockevents.c:75:34 I guess it should be 1ULL here instead of 1U: (!ismax || evt->mult <= (1U << evt->shift))) That's indeed the correct solution because shift might be 32. Reported-by:Andrey Ryabinin <a.ryabinin@samsung.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
parent
6891c450
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