Answer in brief
CVE-2025-39752 records a Medium severity (CVSS 5.5) vulnerability in ARM: rockchip: fix kernel hang during smp initialization. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (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), Siemens/SIMATIC CN 4100 (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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <3c6bf7a324b8995b9c7d790c8d2abf0668f51551 || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <888a453c2a239765a7ab4de8a3cedae2e3802528 || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <c0726d1e466e2d0da620836e293a59e6427ccdff || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <265583266d93db4ff83d088819b1f63fdf0131db || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <d7d6d076ee9532c4668f14696a35688d35dd16f4 || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <0223a3683d502b7e5eb2eb4ad7e97363fa88d531 || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <47769dab9073a73e127aa0bfd0ba4c51eaccdc33 || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <1eb67589a7e091b1e5108aab72fddbf4dc69af2c || >=3ee851e212d0bb6be8c462059fba74ce2e3f6064 <7cdb433bb44cdc87dc5260cdf15bf03cc1cd1814 | 3c6bf7a324b8995b9c7d790c8d2abf0668f51551, 888a453c2a239765a7ab4de8a3cedae2e3802528, c0726d1e466e2d0da620836e293a59e6427ccdff, 265583266d93db4ff83d088819b1f63fdf0131db, d7d6d076ee9532c4668f14696a35688d35dd16f4, 0223a3683d502b7e5eb2eb4ad7e97363fa88d531, 47769dab9073a73e127aa0bfd0ba4c51eaccdc33, 1eb67589a7e091b1e5108aab72fddbf4dc69af2c, 7cdb433bb44cdc87dc5260cdf15bf03cc1cd1814 |
| Linux/Linuxgeneric | 3.19 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
Published upstream
Sep 11, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 28, 2026
In the Linux kernel, the following vulnerability has been resolved: ARM: rockchip: fix kernel hang during smp initialization In order to bring up secondary CPUs main CPU write trampoline code to SRAM. The trampoline code is written while secondary CPUs are powered on (at least that true for RK3188 CPU). Sometimes that leads to kernel hang. Probably because secondary CPU execute trampoline code while kernel doesn't expect. The patch moves SRAM initialization step to the point where all secondary CPUs are powered down. That fixes rarely hangs on RK3188: [ 0.091568] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.091996] rockchip_smp_prepare_cpus: ncores 4
Quoted source text, attributed separately from HOL analysis.