Answer in brief
CVE-2025-38212 records a Unknown severity 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.
A CVSS score is not reported in the current record. 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.
| 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
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: 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.