Re: [PATCH] xen/sched: Fix UB shift in compat_set_timer_op()

2024-01-31 Thread Jan Beulich
On 30.01.2024 22:27, Andrew Cooper wrote: > Tamas reported this UBSAN failure from fuzzing: > > (XEN) > > (XEN) UBSAN: Undefined behaviour in common/sched/compat.c:48:37 > (XEN) left shift of negative value -21

[PATCH] xen/sched: Fix UB shift in compat_set_timer_op()

2024-01-30 Thread Andrew Cooper
Tamas reported this UBSAN failure from fuzzing: (XEN) (XEN) UBSAN: Undefined behaviour in common/sched/compat.c:48:37 (XEN) left shift of negative value -2147425536 (XEN) [ Xen-4.19-unstable x86_64 debu