CVE-2024-56768
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-56768
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-56768.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-56768
- Downstream
- Related
- Published
- 2025-01-06T16:20:46.133Z
- Modified
- 2025-11-28T02:34:38.364885Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix bpfgetsmpprocessorid() on !CONFIG_SMP
On x86-64 calling bpfgetsmpprocessorid() in a kernel with CONFIGSMP disabled can trigger the following bug, as pcpuhot 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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56768.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/23579010cf0a12476e96a5f1acdf78a9c5843657
- https://git.kernel.org/stable/c/f4ab7d74247b0150547cf909b3f6f24ee85183df
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56768.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-56768