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 applicationsThere is no fixed version for Centos:10 kernel-doc.
Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Centos.
See How to fix? for Centos:10 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
bpf: Don't infer non-NULL from a pointer with an unbounded offset
reg_not_null() decides that a register holds a non-NULL value by looking at its type alone. For pointer types that allow arithmetic the type only guarantees a non-NULL base, in case of an unbound offset the runtime offset value might still add up to NULL. Consider the followng program:
r6 = bpf_map_lookup_elem(map, &0); /* present / if (r6 == 0) return 0; r7 = bpf_map_lookup_elem(map, &1); / absent, NULL at runtime / r8 = r7; r8 -= r6; / pointer - pointer: unknown scalar, -r6 / r8 <<= 1; r8 >>= 1; / any non-negative offset is accepted by / / check_reg_sane_offset_ptr() / r6 += r8; / verifier: map value; runtime: zero */ if (r7 != r6) return 0; *(u8 )(r7 + 0); / r7 is inferred non-NULL, both are zero */
At runtime both registers are zero, the comparison is true and the load faults with NULL pointer dereference.
Require the offset to be within +-BPF_MAX_VAR_OFF in reg_not_null().