Answer in brief
CVE-2026-46047 records a Unknown severity vulnerability in net: qrtr: ns: Fix use-after-free in driver remove(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). 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 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0c2204a4ad710d95d348ea006f14ba926e842ffd <65168712c216584ff482a7d1a67589f2079b2634 || >=0c2204a4ad710d95d348ea006f14ba926e842ffd <dff081c3602f2fd810f69ef47945a226980dd05d || >=0c2204a4ad710d95d348ea006f14ba926e842ffd <4ae0bd51bf7079e9c2a06b5de0ae04ba70d10167 || >=0c2204a4ad710d95d348ea006f14ba926e842ffd <0f313eb6a8f6dffa491373cf3afab979fa1c02f4 || >=0c2204a4ad710d95d348ea006f14ba926e842ffd <db3c60ec772de30acae92d560dfcc5258e58dbe8 || >=0c2204a4ad710d95d348ea006f14ba926e842ffd <2e127ceb1c415e246076d8e09e23e443a7a2038f || >=0c2204a4ad710d95d348ea006f14ba926e842ffd <f96779e916576e81430ebb326baff6e433fef8ae || >=0c2204a4ad710d95d348ea006f14ba926e842ffd <7809fea20c9404bfcfa6112ec08d1fe1d3520beb | 65168712c216584ff482a7d1a67589f2079b2634, dff081c3602f2fd810f69ef47945a226980dd05d, 4ae0bd51bf7079e9c2a06b5de0ae04ba70d10167, 0f313eb6a8f6dffa491373cf3afab979fa1c02f4, db3c60ec772de30acae92d560dfcc5258e58dbe8, 2e127ceb1c415e246076d8e09e23e443a7a2038f, f96779e916576e81430ebb326baff6e433fef8ae, 7809fea20c9404bfcfa6112ec08d1fe1d3520beb |
| Linux/Linuxgeneric | 5.7 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Fix use-after-free in driver remove() In the remove callback, if a packet arrives after destroy_workqueue() is called, but before sock_release(), the qrtr_ns_data_ready() callback will try to queue the work, causing use-after-free issue. Fix this issue by saving the default 'sk_data_ready' callback during qrtr_ns_init() and use it to replace the qrtr_ns_data_ready() callback at the start of remove(). This ensures that even if a packet arrives after destroy_workqueue(), the work struct will not be dereferenced. Note that it is also required to ensure that the RX threads are completed before destroying the workqueue, because the threads could be using the qrtr_ns_data_ready() callback.
Quoted source text, attributed separately from HOL analysis.