CVE-2026-72027mm/compaction: handle free_pages_prepare() properly in compaction_free()
- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% 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: mm/compaction: handle free_pages_prepare() properly in compaction_free() free_pages_prepare() can fail but compaction_free() does not handle the failure case. Failed pages should not be added back to cc->freepages for future use, since they can be either PageHWPoison or free_page_is_bad() and might cause data corruption.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 days later
· 2 days 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 |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 733aea0b3a7bba0451dfc19322665de13a5b7af4 – < de8577db09039d4950239b01446ab5ead9028ab4
- affected 733aea0b3a7bba0451dfc19322665de13a5b7af4 – < 018d7ad26cb8bdfe9842f2ca68a42b0bfdcc82fe
- affected 733aea0b3a7bba0451dfc19322665de13a5b7af4 – < 23afc3786acf359c135093893fb43a436768c832
- affected 733aea0b3a7bba0451dfc19322665de13a5b7af4 – < 7da7d599b8a83271c464adfd5ef160202b470570
- affected 6.9
- unaffected < 6.9
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References4
- https://git.kernel.org/stable/c/de8577db09039d4950239b01446ab5ead9028ab4 (opens in a new tab)
- https://git.kernel.org/stable/c/018d7ad26cb8bdfe9842f2ca68a42b0bfdcc82fe (opens in a new tab)
- https://git.kernel.org/stable/c/23afc3786acf359c135093893fb43a436768c832 (opens in a new tab)
- https://git.kernel.org/stable/c/7da7d599b8a83271c464adfd5ef160202b470570 (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-2026-58985 (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-2026-72027)Record last updated .