Answer in brief
CVE-2024-56662 records a High severity (CVSS 7.8) vulnerability in acpi: nfit: vmalloc-out-of-bounds Read in acpi_nfit_ctl. 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 | >=ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 <616aa5f3c86e0479bcbb81e41c08c43ff32af637 || >=ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 <bbdb3307f609ec4dc9558770f464ede01fe52aed || >=ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 <143f723e9eb4f0302ffb7adfdc7ef77eab3f68e0 || >=ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 <e08dc2dc3c3f7938df0e4476fe3e6fdec5583c1d || >=ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 <212846fafb753a48e869e2a342fc1e24048da771 || >=ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 <265e98f72bac6c41a4492d3e30a8e5fd22fe0779 || 63108f2a408abea7ecab063efa0f398da4d0d14b || f5878c4f084dc6b1386dad03970bb61ad5e9dc4b || 0c79794474895dbbc3c52225f7e9f73cfecbb7dd || >=4.14.176 <4.15 || >=4.19.31 <4.20 || >=5.0.4 <5.1 | 616aa5f3c86e0479bcbb81e41c08c43ff32af637, bbdb3307f609ec4dc9558770f464ede01fe52aed, 143f723e9eb4f0302ffb7adfdc7ef77eab3f68e0, e08dc2dc3c3f7938df0e4476fe3e6fdec5583c1d, 212846fafb753a48e869e2a342fc1e24048da771, 265e98f72bac6c41a4492d3e30a8e5fd22fe0779, 4.15, 4.20, 5.1 |
| Linux/Linuxgeneric | 5.1 | Not reported |
Published upstream
Dec 27, 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: acpi: nfit: vmalloc-out-of-bounds Read in acpi_nfit_ctl Fix an issue detected by syzbot with KASAN: BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/ core.c:416 [inline] BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0 drivers/acpi/nfit/core.c:459 The issue occurs in cmd_to_func when the call_pkg->nd_reserved2 array is accessed without verifying that call_pkg points to a buffer that is appropriately sized as a struct nd_cmd_pkg. This can lead to out-of-bounds access and undefined behavior if the buffer does not have sufficient space. To address this, a check was added in acpi_nfit_ctl() to ensure that buf is not NULL and that buf_len is less than sizeof(*call_pkg) before accessing it. This ensures safe access to the members of call_pkg, including the nd_reserved2 array.
Quoted source text, attributed separately from HOL analysis.