s390/checksum: Fix csum_partial() without vector facility
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.12.101, 6.18.42, 7.1.6
- 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
- Exploitation: none
- Automatable: yes
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/checksum: Fix csum_partial() without vector facility Currently csum_partial() calls csum_copy() with copy=false and dst=NULL. On machines without the vector facility, csum_copy() falls back to cksm(dst, ...), causing the checksum to be calculated from address zero instead of the source buffer. The VX implementation already checksums data loaded from src. Make the fallback do the same by passing src to cksm().
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From dcd3e1de9d17dc43dfed87a9fc814b9dec508043 · fixed in 5fc0a2a6eeb99cac991242bb48796c7749ce3261; From dcd3e1de9d17dc43dfed87a9fc814b9dec508043 · fixed in 1d9a2f01b3c4e5c88e06b2db4b5460c2ec884722; From dcd3e1de9d17dc43dfed87a9fc814b9dec508043 · fixed in 898bb2814f38399108bdd2113f38d97383a7036a; From dcd3e1de9d17dc43dfed87a9fc814b9dec508043 · fixed in 4bb06b60d982355e22647b3d12d6619419f8c1fa
- Linux Linux
6.9
- KernelLinux
From 6.9.0 · fixed in 6.12.101; From 6.13.0 · fixed in 6.18.42; From 6.19.0 · fixed in 7.1.6