CVE-2026-93147
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 9012cf2491e3c5d28d098b0d6da804af82977032 < 88500a86ab79f01c568de6ed00f5b1c5c79f11d5 | affected |
| Linux | Linux | 9012cf2491e3c5d28d098b0d6da804af82977032 < 5f6cc299938b561cb01e343bab7042611fcee12a | affected |
| Linux | Linux | 7.2 | affected |
| Linux | Linux | 0 < 7.2 | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/88500a86ab79f01c568de6ed00f5b1c5c79f11d5
- https://git.kernel.org/stable/c/5f6cc299938b561cb01e343bab7042611fcee12a
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