CVE-2026-98183: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: avoid out-of-bounds read for empty PREQ elements ieee80211_mesh_preq_size_ok() derives the location of the PREQ bottom fields before checking whether the element contains even the fixed header. ieee80211_mesh_hwmp_preq_get_bottom() reads the flags byte to account for the optional Address Extension field. Consequently, an empty PREQ element causes a one-byte read beyond its declared payload. Move the helper call after both size checks, so the bottom fields are only accessed when they are present.

Засегнати продукти

• Linux Linux: 8b40b1d24a6099fe9fac8e207d4cb04ab5e0baae преди 3beddbd56946577478fd5e649f556aaaebe15b0a; 8b40b1d24a6099fe9fac8e207d4cb04ab5e0baae преди e6031f02269c0f51cf67886d177f02bc300b47cd
• Linux Linux: 7.2; преди 7.2; 7.2.8 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-2026-98183
• https://nvd.nist.gov/vuln/detail/CVE-2026-98183
• https://git.kernel.org/stable/c/3beddbd56946577478fd5e649f556aaaebe15b0a
• https://git.kernel.org/stable/c/e6031f02269c0f51cf67886d177f02bc300b47cd