CVE-2024-56768 (GCVE-0-2024-56768)
Vulnerability from cvelistv5
Published
2025-01-06 16:20
Modified
2025-05-04 10:04
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1ae6921009e5d72787e07ccc04754514ccf6bc99
Version: 1ae6921009e5d72787e07ccc04754514ccf6bc99
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