CVE-2026-46080ocfs2: split transactions in dio completion to avoid credit exhaustion
- 5.5MediumCVSS base score
- 0.14%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: split transactions in dio completion to avoid credit exhaustion During ocfs2 dio operations, JBD2 may report warnings via following call trace: ocfs2_dio_end_io_write ocfs2_mark_extent_written ocfs2_change_extent_flag ocfs2_split_extent ocfs2_try_to_merge_extent ocfs2_extend_rotate_transaction ocfs2_extend_trans jbd2__journal_restart start_this_handle output: JBD2: kworker/6:2 wants too many credits credits:5450 rsv_credits:0 max:5449 To prevent exceeding the credits limit, modify ocfs2_dio_end_io_write() to handle extents in a batch of transaction. Additionally, relocate ocfs2_del_inode_from_orphan(). The orphan inode should only be removed from the orphan list after the extent tree update is complete. This ensures that if a crash occurs in the middle of extent tree updates, we won't leave stale blocks beyond EOF. This patch also changes the logic for updating the inode size and removing orphan, making it similar to ext4_dio_write_end_io(). Both operations are performed only when everything looks good. Finally, thanks to Jans and Joseph for providing the bug fix prototype and suggestions.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Undergoing Analysis | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.14% · top 97% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < 97c03c0e9f73a5049794b3c69ee60fb5e8b0ebd8
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < 1e99bb19994246514d63e656492904176f9d5edd
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < 91e05ac2336d00d5b99fc774be4bd50039084796
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < 886f97fa59d0bbfa9859fb1a66dd9e014b522d89
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < ea5bb1d20da756e4f41a48dad42b2e7d6e73f71e
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < 3c636a3edca9c3f180b3079f94fe7e115730d9c6
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < 069c3fb310e9336cf48cfdf8748a32c29fd0193d
- affected c15471f79506830f80eca0e7fe09b8213953ab5f – < d647c5b2fbf81560818dacade360abc8c00a9665
- affected 4.6
- unaffected < 4.6
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.86 – ≤ 6.12.*
- unaffected 6.18.27 – ≤ 6.18.*
- unaffected 7.0.4 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/97c03c0e9f73a5049794b3c69ee60fb5e8b0ebd8 (opens in a new tab)
- https://git.kernel.org/stable/c/1e99bb19994246514d63e656492904176f9d5edd (opens in a new tab)
- https://git.kernel.org/stable/c/91e05ac2336d00d5b99fc774be4bd50039084796 (opens in a new tab)
- https://git.kernel.org/stable/c/886f97fa59d0bbfa9859fb1a66dd9e014b522d89 (opens in a new tab)
- https://git.kernel.org/stable/c/ea5bb1d20da756e4f41a48dad42b2e7d6e73f71e (opens in a new tab)
- https://git.kernel.org/stable/c/3c636a3edca9c3f180b3079f94fe7e115730d9c6 (opens in a new tab)
- https://git.kernel.org/stable/c/069c3fb310e9336cf48cfdf8748a32c29fd0193d (opens in a new tab)
- https://git.kernel.org/stable/c/d647c5b2fbf81560818dacade360abc8c00a9665 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32463 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-46080)Record last updated .