Answer in brief
CVE-2025-38212 records a High severity (CVSS 7.8) vulnerability in ipc: fix to protect IPCS lookups using RCU. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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 | >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <5f1e1573bf103303944fd7225559de5d8297539c || >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <b968ba8bfd9f90914957bbbd815413bf6a98eca7 || >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <74bc813d11c30e28fc5261dc877cca662ccfac68 || >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <78297d53d3878d43c1d627d20cd09f611fa4b91d || >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <5180561afff8e0f029073c8c8117c95c6512d1f9 || >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <68c173ea138b66d7dd1fd980c9bc578a18e11884 || >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <b0b6bf90ce2699a574b3683e22c44d0dcdd7a057 || >=b34a6b1da371ed8af1221459a18c67970f7e3d53 <d66adabe91803ef34a8b90613c81267b5ded1472 | 5f1e1573bf103303944fd7225559de5d8297539c, b968ba8bfd9f90914957bbbd815413bf6a98eca7, 74bc813d11c30e28fc5261dc877cca662ccfac68, 78297d53d3878d43c1d627d20cd09f611fa4b91d, 5180561afff8e0f029073c8c8117c95c6512d1f9, 68c173ea138b66d7dd1fd980c9bc578a18e11884, b0b6bf90ce2699a574b3683e22c44d0dcdd7a057, d66adabe91803ef34a8b90613c81267b5ded1472 |
| Linux/Linuxgeneric | 3.1 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Jul 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 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: ipc: fix to protect IPCS lookups using RCU syzbot reported that it discovered a use-after-free vulnerability, [0] [0]: https://lore.kernel.org/all/[email protected]/ idr_for_each() is protected by rwsem, but this is not enough. If it is not protected by RCU read-critical region, when idr_for_each() calls radix_tree_node_free() through call_rcu() to free the radix_tree_node structure, the node will be freed immediately, and when reading the next node in radix_tree_for_each_slot(), the already freed memory may be read. Therefore, we need to add code to make sure that idr_for_each() is protected within the RCU read-critical region when we call it in shm_destroy_orphaned().
Quoted source text, attributed separately from HOL analysis.