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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jan 6, 2025 |
| Ubuntu | — | Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-azure-fdeUpgrade linux-image-oracleUpgrade linux-image-6.11.0-1011-lowlatency-64kUpgrade linux-image-6.11.0-1017-oemUpgrade linux-image-gcp-64kUpgrade linux-image-awsUpgrade linux-image-6.11.0-1012-azureUpgrade linux-image-6.11.0-1011-lowlatencyUpgrade linux-image-oem-24.04bUpgrade linux-image-6.11.0-1011-gcp-64kUpgrade linux-image-raspiUpgrade linux-image-6.11.0-1011-awsUpgrade linux-image-6.11.0-1011-gcpUpgrade linux-image-6.11.0-21-genericUpgrade linux-image-6.11.0-1013-oracle-64kUpgrade linux-image-6.11.0-1010-raspiUpgrade linux-image-6.11.0-1012-azure-fdeUpgrade linux-image-realtimeUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-6.11.0-1013-oracleUpgrade linux-image-lowlatency-64kUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-azureUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.11.0-1007-realtimeUpgrade linux-image-genericUpgrade linux-image-generic-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-6.11.0-21-generic-64kUpgrade linux-image-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-oem-24.04a | Mar 28, 2025 | Jan 6, 2025 |
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