Answer in brief
CVE-2024-47668 records a High severity (CVSS 7.8) vulnerability in lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ba20ba2e3743bac786dff777954c11930256075e <0f27f4f445390cb7f73d4209cb2bf32834dc53da || >=ba20ba2e3743bac786dff777954c11930256075e <99418ec776a39609f50934720419e0b464ca2283 || >=ba20ba2e3743bac786dff777954c11930256075e <ad5ee9feebc2eb8cfc76ed74a2d6e55343b0e169 || >=ba20ba2e3743bac786dff777954c11930256075e <ebeff038744c498a036e7a92eb8e433ae0a386d7 || >=ba20ba2e3743bac786dff777954c11930256075e <d942e855324a60107025c116245095632476613e || >=ba20ba2e3743bac786dff777954c11930256075e <0f078f8ca93b28a34e20bd050f12cd4efeee7c0f || >=ba20ba2e3743bac786dff777954c11930256075e <b2f11c6f3e1fc60742673b8675c95b78447f3dae | 0f27f4f445390cb7f73d4209cb2bf32834dc53da, 99418ec776a39609f50934720419e0b464ca2283, ad5ee9feebc2eb8cfc76ed74a2d6e55343b0e169, ebeff038744c498a036e7a92eb8e433ae0a386d7, d942e855324a60107025c116245095632476613e, 0f078f8ca93b28a34e20bd050f12cd4efeee7c0f, b2f11c6f3e1fc60742673b8675c95b78447f3dae |
| Linux/Linuxgeneric | 5.1 | Not reported |
Published upstream
Oct 9, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() If we need to increase the tree depth, allocate a new node, and then race with another thread that increased the tree depth before us, we'll still have a preallocated node that might be used later. If we then use that node for a new non-root node, it'll still have a pointer to the old root instead of being zeroed - fix this by zeroing it in the cmpxchg failure path.
Quoted source text, attributed separately from HOL analysis.