What is CVE-2024-56768?

CVE-2024-56768 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-01-06.

How severe is CVE-2024-56768?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2024-56768

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP disabled can trigger the following bug, as pcpu_hot is unavailable: [ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c [ 8.471849] #PF: supervisor read access in kernel mode [ 8.471881] #PF: error_code(0x0000) - not-present page Fix by inlining a return 0 in the !CONFIG_SMP case.

EPSS: 0.002 (6.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 1ae6921009e5d72787e07ccc04754514ccf6bc99, 6.10, 0
Linux Linux_kernel — versions 6.13

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2024-56768?: CVE-2024-56768 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-01-06.
How severe is CVE-2024-56768?: Medium severity. CVSS v3 base score is 5.5 out of 10.