Answer in brief
CVE-2026-98795 records a Unknown severity vulnerability in net: sparx5: skip ptp deinit if init was skipped. 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.
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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0933bd04047c3b96ba49545a8f91e7e6f8f666ff <35c706d6eb1963735814c5f5bb2674a96eacf3cc || >=0933bd04047c3b96ba49545a8f91e7e6f8f666ff <2879b65bfa548e10d59c5fba91d17f8a00cd7029 || >=0933bd04047c3b96ba49545a8f91e7e6f8f666ff <0d2c49915bc3aea4521cda5e4d42f24f63b94585 | 35c706d6eb1963735814c5f5bb2674a96eacf3cc, 2879b65bfa548e10d59c5fba91d17f8a00cd7029, 0d2c49915bc3aea4521cda5e4d42f24f63b94585 |
| Linux/Linuxgeneric | 5.18 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: net: sparx5: skip ptp deinit if init was skipped sparx5_ptp_init() returns early on the base lan969x variants because they do not have the SPX5_FEATURE_PTP flag. It also returns early when no "ptp" interrupt is described. Unbinding the driver then causes a NULL pointer dereference when cleaning up uninitialized tx_skbs queues: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Call trace: skb_queue_purge_reason+0x68/0x120 (P) sparx5_ptp_deinit+0x64/0xc0 mchp_sparx5_remove+0x38/0x70 platform_remove+0x20/0x30 device_remove+0x4c/0x80 Before per-port tx_skbs were added, a NULL dereference would have happened when calling ptp_clock_unregister() on the never-registered PTP clocks. Fix by returning early in sparx5_ptp_deinit() if PTP is not used.
Quoted source text, attributed separately from HOL analysis.