CVE-2025-38364
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
maple_tree: fix MA_STATE_PREALLOC flag in mas_preallocate()
In the Linux kernel, the following vulnerability has been resolved: maple_tree: fix MA_STATE_PREALLOC flag in mas_preallocate() Temporarily clear the preallocation flag when explicitly requesting allocations. Pre-existing allocations are already counted against the request through mas_node_count_gfp(), but the allocations will not happen if the MA_STATE_PREALLOC flag is set. This flag is meant to avoid re-allocating in bulk allocation mode, and to detect issues with preallocation calculations. The MA_STATE_PREALLOC flag should also always be set on zero allocations so that detection of underflow allocations will print a WARN_ON() during consumption. User visible effect of this flaw is a WARN_ON() followed by a null pointer dereference when subsequent requests for larger number of nodes is ignored, such as the vma merge retry in mmap_region() caused by drivers altering the vma flags (which happens in v6.6, at least)
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) |
|---|---|---|---|---|---|
| 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa | affected | git | d69cd64bd5af41c6fd409313504089970edaf02f | Unavailable | None listed |
| 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa | affected | git | e63032e66bca1d06e600033f3369ba3db3af0870 | Unavailable | None listed |
| 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa | affected | git | cf95f8426f889949b738f51ffcd72884411f3a6a | Unavailable | None listed |
| 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa | affected | git | 9e32f4700867abbd5d19abfcf698dbd0d2ce36a4 | Unavailable | None listed |
| 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa | affected | git | fba46a5d83ca8decb338722fb4899026d8d9ead2 | 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) |
|---|---|---|---|---|---|
| 6.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.1 | Unavailable | None listed |
| 6.1.146 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.99 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.36 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.5 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |