In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: HWS, fix definer's HWS_SET32 macro for negative offset
When bit offset for HWS_SET32 macro is negative,
UBSAN complains about the shift-out-of-bounds:
UBSAN: shift-out-of-bounds in
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c:177:2
shift exponent -8 is negative
CVE ID: CVE-2025-21800
Vendor: Linux, Linux
Product: Linux, Linux
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 4.0% (scored less or equal to compared to others)
EPSS Date: 2025-03-28 (when was this score calculated)