CVE-2023-54285iomap: Fix possible overflow condition in iomap_write_delalloc_scan
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 38be53c3fd7f4f4bd5de319a323d72f9f6beb16d builds before 0c6cf409093f307ee05114f834516730c0da5b21; from f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 before 5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240; from f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 before eee2d2e6ea5550118170dbd5bb1316ceb38455fb; from 6.1.92 before 6.1.162 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.1.92 before 6.1.162; from 6.2 before 6.5.5 | NVD |
References
- https://git.kernel.org/stable/c/0c6cf409093f307ee05114f834516730c0da5b21patch
- https://git.kernel.org/stable/c/5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240patch
- https://git.kernel.org/stable/c/eee2d2e6ea5550118170dbd5bb1316ceb38455fbpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.