CVE-2026-93147
High
Description
In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Replace ly instruction with llgf cpu_nr is a 32 bit value and BPF_REG_0 is a 64 bit register, when ly loads the cpu_nr into BPF_REG_0 it does not zero the upper bits, but llgf does.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedSep 17, 2026
First seenSep 17, 2026
How to fix
Update
- Linux Linux88500a86ab79f01c568de6ed00f5b1c5c79f11d5, 5f6cc299938b561cb01e343bab7042611fcee12a or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 9012cf2491e3c5d28d098b0d6da804af82977032 ≤ v < 88500a86ab79f01c568de6ed00f5b1c5c79f11d5, 9012cf2491e3c5d28d098b0d6da804af82977032 ≤ v < 5f6cc299938b561cb01e343bab7042611fcee12a, 7.2 | 88500a86ab79f01c568de6ed00f5b1c5c79f11d5, 5f6cc299938b561cb01e343bab7042611fcee12a |
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