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CVE Vulnerability Details :
CVE-2023-54285
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-30 Dec, 2025 | 12:23
Updated At-06 Feb, 2026 | 16:30
Rejected At-
▼CVE Numbering Authority (CNA)
iomap: Fix possible overflow condition in iomap_write_delalloc_scan

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.

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/iomap/buffered-io.c
Default Status
unaffected
Versions
Affected
  • From 38be53c3fd7f4f4bd5de319a323d72f9f6beb16d before 0c6cf409093f307ee05114f834516730c0da5b21 (git)
  • From f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 before 5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240 (git)
  • From f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 before eee2d2e6ea5550118170dbd5bb1316ceb38455fb (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/iomap/buffered-io.c
Default Status
affected
Versions
Affected
  • 6.2
Unaffected
  • From 0 before 6.2 (semver)
  • From 6.1.162 through 6.1.* (semver)
  • From 6.5.5 through 6.5.* (semver)
  • From 6.6 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.kernel.org/stable/c/0c6cf409093f307ee05114f834516730c0da5b21
N/A
https://git.kernel.org/stable/c/5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240
N/A
https://git.kernel.org/stable/c/eee2d2e6ea5550118170dbd5bb1316ceb38455fb
N/A
Hyperlink: https://git.kernel.org/stable/c/0c6cf409093f307ee05114f834516730c0da5b21
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/eee2d2e6ea5550118170dbd5bb1316ceb38455fb
Resource: N/A
Details not found