Answer in brief
CVE-2025-38113 records a Medium severity (CVSS 5.5) vulnerability in ACPI: CPPC: Fix NULL pointer dereference when nosmp is used. 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 5.5. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3cc30dd00a580ca0c9c0b01639841cfd72d10129 <356d09c7f5bf525086002a34f8bae40b134d1611 || >=3cc30dd00a580ca0c9c0b01639841cfd72d10129 <c6dad167aade4bf0bef9130f2f149f4249fc4ad0 || >=3cc30dd00a580ca0c9c0b01639841cfd72d10129 <32a48db4cf28ea087214c261da8476db218d08bd || >=3cc30dd00a580ca0c9c0b01639841cfd72d10129 <1a677d0ceb4a5d62117b711a8b2e0aee80d33015 || >=3cc30dd00a580ca0c9c0b01639841cfd72d10129 <15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12 | 356d09c7f5bf525086002a34f8bae40b134d1611, c6dad167aade4bf0bef9130f2f149f4249fc4ad0, 32a48db4cf28ea087214c261da8476db218d08bd, 1a677d0ceb4a5d62117b711a8b2e0aee80d33015, 15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12 |
| Linux/Linuxgeneric | 5.19 | Not reported |
Published upstream
Jul 3, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fix NULL pointer dereference when nosmp is used With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic. Panic backtrace: [ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init! [ rjw: New subject ]
Quoted source text, attributed separately from HOL analysis.