iomap: release pages on atomic dio size mismatch
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.18.57, 7.1.5
- 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
Summary
In the Linux kernel, the following vulnerability has been resolved: iomap: release pages on atomic dio size mismatch If bio_iov_iter_get_pages() or the bounce helper succeeds but builds a short bio, the REQ_ATOMIC size check rejects it before submission. The old error path only dropped the bio reference, leaving any pages already attached to the bio unreleased. Release or unbounce the pages before falling through to out_put_bio on this error path. This bug was reported by sashiko: https://sashiko.dev/#/patchset/20260608073134.95964-1-changfengnan%40bytedance.com
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 9e0933c21c128d6d8ac4d8aae0babaf9a43100b8 · fixed in 177d22d31a4ebf13964a4154035ade385382aced; From 9e0933c21c128d6d8ac4d8aae0babaf9a43100b8 · fixed in 27ddd3442fc6f698fb8577c7cfb243ddd81ea8c0; From 9e0933c21c128d6d8ac4d8aae0babaf9a43100b8 · fixed in 681e452683b69a8e1a571cba0f238f8ceacf55d2
- Linux Linux
6.13
- KernelLinux
From 6.13.0 · fixed in 6.18.57; From 6.19.0 · fixed in 7.1.5