CVE-2024-44965
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)
x86/mm: Fix pti_clone_pgtable() alignment assumption
In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix pti_clone_pgtable() alignment assumption Guenter reported dodgy crashes on an i386-nosmp build using GCC-11 that had the form of endless traps until entry stack exhaust and then #DF from the stack guard. It turned out that pti_clone_pgtable() had alignment assumptions on the start address, notably it hard assumes start is PMD aligned. This is true on x86_64, but very much not true on i386. These assumptions can cause the end condition to malfunction, leading to a 'short' clone. Guess what happens when the user mapping has a short copy of the entry text? Use the correct increment form for addr to avoid alignment assumptions.
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) |
|---|---|---|---|---|---|
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | 18da1b27ce16a14a9b636af9232acb4fb24f4c9e | Unavailable | None listed |
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | 25a727233a40a9b33370eec9f0cad67d8fd312f8 | Unavailable | None listed |
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | d00c9b4bbc442d99e1dafbdfdab848bc1ead73f6 | Unavailable | None listed |
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | 4d143ae782009b43b4f366402e5c37f59d4e4346 | Unavailable | None listed |
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | 5c580c1050bcbc15c3e78090859d798dcf8c9763 | Unavailable | None listed |
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | ca07aab70dd3b5e7fddb62d7a6ecd7a7d6d0b2ed | Unavailable | None listed |
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | df3eecb5496f87263d171b254ca6e2758ab3c35c | Unavailable | None listed |
| 16a3fe634f6a568c6234b8747e5d50487fed3526 | affected | git | 41e71dbb0e0a0fe214545fe64af031303a08524c | 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) |
|---|---|---|---|---|---|
| 4.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.19 | Unavailable | None listed |
| 4.19.320 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.282 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.224 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.165 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.105 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.46 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.10.5 | unaffected | semver | Unavailable | 6.10.* | None listed |
| 6.11 | unaffected | original_commit_for_fix | Unavailable | * | None listed |