dm-pcache: clamp the tail kset read to the segment data region
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.18.50, 7.2.4
- 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: dm-pcache: clamp the tail kset read to the segment data region The tail-kset read in cache_replay(), the writeback worker and the GC worker bounds its length by PCACHE_SEG_SIZE - seg_off, the raw segment size rather than the data region. A tail near the segment end reads past the segment data into the following control area. Clamp the read to cache_seg_remain(), the data region.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 · fixed in 2cd9776fe3f2d88ec22c36d3c8ba09fbf9d5500c; From 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 · fixed in 1ab55354368d071ebaee4d8c82313955eab65a04; From 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 · fixed in becf07e2b0053027495ecd671b1f82fb2e615f68
- Linux Linux
6.18
- KernelLinux
From 6.18.0 · fixed in 6.18.50; From 6.19.0 · fixed in 7.2.4