CVE-2024-40948
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mm/page_table_check: fix crash on ZONE_DEVICE
In the Linux kernel, the following vulnerability has been resolved: mm/page_table_check: fix crash on ZONE_DEVICE Not all pages may apply to pgtable check. One example is ZONE_DEVICE pages: they map PFNs directly, and they don't allocate page_ext at all even if there's struct page around. One may reference devm_memremap_pages(). When both ZONE_DEVICE and page-table-check enabled, then try to map some dax memories, one can trigger kernel bug constantly now when the kernel was trying to inject some pfn maps on the dax device: kernel BUG at mm/page_table_check.c:55! While it's pretty legal to use set_pxx_at() for ZONE_DEVICE pages for page fault resolutions, skip all the checks if page_ext doesn't even exist in pgtable checker, which applies to ZONE_DEVICE but maybe more.
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) |
|---|---|---|---|---|---|
| df4e817b710809425d899340dbfa8504a3ca4ba5 | affected | git | 51897f99351fff7b57f4f141940fa93b4e90fd2b | Unavailable | None listed |
| df4e817b710809425d899340dbfa8504a3ca4ba5 | affected | git | 84d3549d54f5ff9fa3281257be3019386f51d1a0 | Unavailable | None listed |
| df4e817b710809425d899340dbfa8504a3ca4ba5 | affected | git | dec2382247860d2134c8d41e103e26460c099629 | Unavailable | None listed |
| df4e817b710809425d899340dbfa8504a3ca4ba5 | affected | git | 8bb592c2eca8fd2bc06db7d80b38da18da4a2f43 | 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) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 6.1.96 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.36 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.9.7 | unaffected | semver | Unavailable | 6.9.* | None listed |
| 6.10 | unaffected | original_commit_for_fix | Unavailable | * | None listed |