CVE-2026-72172
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE
In the Linux kernel, the following vulnerability has been resolved: mm/mm_init: fix uninitialized struct pages for ZONE_DEVICE If DAX memory is hotplugged into an unoccupied subsection of an early section, section_activate() reuses the unoptimized boot memmap. However, compound_nr_pages() still assumes that vmemmap optimization is in effect and initializes only the reduced number of struct pages. As a result, the remaining tail struct pages are left uninitialized, which can later lead to unexpected behavior or crashes. Fix this by treating early sections as unoptimized when calculating how many struct pages to initialize.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6fd3620b342861de9547ea01d28f664892ef51a1 | affected | git | c5ef574d57e4a701485c13f26822328c91f05413 | Unavailable | None listed |
| 6fd3620b342861de9547ea01d28f664892ef51a1 | affected | git | 511a60e71aec308b24722cffc1912bf6befb87bf | Unavailable | None listed |
| 6fd3620b342861de9547ea01d28f664892ef51a1 | affected | git | 11f2826e9ee6f24aaa774e3dcd75abbe4b3091b6 | Unavailable | None listed |
| 6fd3620b342861de9547ea01d28f664892ef51a1 | affected | git | da5234df0941665f3a3f5b80f3dab94046537be0 | Unavailable | None listed |
| 6fd3620b342861de9547ea01d28f664892ef51a1 | affected | git | b91e27bce37cab9f35de0059278ebe457ca9878b | Unavailable | None listed |
| 6fd3620b342861de9547ea01d28f664892ef51a1 | affected | git | cd681403a87085562499d60325b7b45d3be11217 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.19 | Unavailable | None listed |
| 6.1.184 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |