CVE-2026-93147
s390/bpf: Replace ly instruction with llgf
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.2.6
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 9012cf2491e3c5d28d098b0d6da804af82977032 · fixed in 88500a86ab79f01c568de6ed00f5b1c5c79f11d5; From 9012cf2491e3c5d28d098b0d6da804af82977032 · fixed in 5f6cc299938b561cb01e343bab7042611fcee12a
- Linux Linux
7.2
- KernelLinux
From 7.2.0 · fixed in 7.2.6