iomap: Fix possible overflow condition in iomap_write_delalloc_scan
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.1.162, 6.5.5
- 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: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: iomap: Fix possible overflow condition in iomap_write_delalloc_scan folio_next_index() returns an unsigned long value which left shifted by PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead use folio_pos(folio) + folio_size(folio), which does this correctly.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 38be53c3fd7f4f4bd5de319a323d72f9f6beb16d · fixed in 0c6cf409093f307ee05114f834516730c0da5b21; From f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 · fixed in 5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240; From f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 · fixed in eee2d2e6ea5550118170dbd5bb1316ceb38455fb; From 6.1.92 · fixed in 6.1.162
- Linux Linux
6.2
- KernelLinux
fixed in 6.1.162; From 6.2.0 · fixed in 6.5.5