s390/bpf: Zero-extend bpf prog return values and kfunc arguments
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.6.141, 6.12.91, 6.18.33, 7.0.10
- 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
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend signed return values. s390 BPF JIT currently implements only sign extension. Fix this omission and implement zero extension too.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 528eb2cb87bc1353235a6384696b4849bde8b0ba · fixed in edc90a12073b9a530064a99945c183dde120cb99; From 528eb2cb87bc1353235a6384696b4849bde8b0ba · fixed in 44c4f999b03f55debb1a0c5ab5c1796895a1adf8; From 528eb2cb87bc1353235a6384696b4849bde8b0ba · fixed in 366b0e05ee24f5ba62bdc7ec1346038258b9a797; From 528eb2cb87bc1353235a6384696b4849bde8b0ba · fixed in 834918a77be51419383bf1dda9f02b81ecf26b34; From 528eb2cb87bc1353235a6384696b4849bde8b0ba · fixed in 202e42e4aa890172366354b233c42c73107a3f59
- Linux Linux
6.3
- KernelLinux
From 6.3.0 · fixed in 6.6.141; From 6.7.0 · fixed in 6.12.91; From 6.13.0 · fixed in 6.18.33; From 6.19.0 · fixed in 7.0.10