CVE-2026-98795: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 0933bd04047c3b96ba49545a8f91e7e6f8f666ff преди 35c706d6eb1963735814c5f5bb2674a96eacf3cc; 0933bd04047c3b96ba49545a8f91e7e6f8f666ff преди 2879b65bfa548e10d59c5fba91d17f8a00cd7029; 0933bd04047c3b96ba49545a8f91e7e6f8f666ff преди 0d2c49915bc3aea4521cda5e4d42f24f63b94585
• Linux Linux: 5.18; преди 5.18; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98795
• https://nvd.nist.gov/vuln/detail/CVE-2026-98795
• https://git.kernel.org/stable/c/35c706d6eb1963735814c5f5bb2674a96eacf3cc
• https://git.kernel.org/stable/c/2879b65bfa548e10d59c5fba91d17f8a00cd7029
• https://git.kernel.org/stable/c/0d2c49915bc3aea4521cda5e4d42f24f63b94585