CVE-2024-56768
bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 6, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
1ae6921009e5d72787e07ccc04754514ccf6bc99 < f4ab7d74247b0150547cf909b3f6f24ee85183df 1ae6921009e5d72787e07ccc04754514ccf6bc99 < 23579010cf0a12476e96a5f1acdf78a9c5843657
Linux / Linux
6.10