The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade SLES:15.7 kernel-livepatch-6_4_0-150700_53_90-default to version 1-150700.15.3.1 or higher.
Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150700_53_90-default package and not the kernel-livepatch-6_4_0-150700_53_90-default package as distributed by SLES.
See How to fix? for SLES:15.7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
i3c: dw: avoid shift-out-of-bounds when DAA assigns no devices
On an empty bus ENTDAA assigns nothing, so cmd->rx_len (the count of addresses left unassigned) equals master->maxdevs.
The GENMASK() index master->maxdevs - cmd->rx_len - 1 then becomes -1, which trips up UBSAN. This happens every time on boot on a Gigabyte/AMD server:
UBSAN: shift-out-of-bounds in drivers/i3c/master/dw-i3c-master.c:905:12
shift exponent 64 is too large for 64-bit type 'long unsigned int'
CPU: 7 UID: 0 PID: 963 Comm: (udev-worker) Not tainted 7.0.11-200.fc44.x86_64 #1 PREEMPT(lazy)
Hardware name: Giga Computing E163-Z34-AAH1-000/MZ33-DC1-000, BIOS R32_F45 04/01/2026
Call Trace:
<TASK>
dump_stack_lvl+0x5d/0x80
ubsan_epilogue+0x5/0x2b
__ubsan_handle_shift_out_of_bounds.cold+0xd7/0x1ab
dw_i3c_master_daa.cold+0x1b/0x96 [dw_i3c_master]
i3c_master_do_daa_ext.part.0+0x3e/0xf0 [i3c]
Skip the mask when no new device was assigned.