Kritik CVSS 9.8

CVE-2026-43198: Linux Kernel: yarış durumu

Yayın: 6 Mayıs 2026 15:16 · Güncelleme: 6 Kasım 2026 10:19

Açıklama (NVD)

In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcp_v6_syn_recv_sock() Code in tcp_v6_syn_recv_sock() after the call to tcp_v4_syn_recv_sock() is done too late. After tcp_v4_syn_recv_sock(), the child socket is already visible from TCP ehash table and other cpus might use it. Since newinet->pinet6 is still pointing to the listener ipv6_pinfo bad things can happen as syzbot found. Move the problematic code in tcp_v6_mapped_child_init() and call this new helper from tcp_v4_syn_recv_sock() before the ehash insertion. This allows the removal of one tcp_sync_mss(), since tcp_v4_syn_recv_sock() will call it with the correct context.

Özet bilgiler

Ürün: Linux Linux Kernel
CVSS v3.1: 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: %0,30 (yüzdelik 23)
CWE: CWE-362
Yama: Mevcut

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
linux-linux-kernel	2.6.12.1	—	6.18.16
linux-linux-kernel	6.19	—	6.19.6
linux-linux-kernel	2.6.12	2.6.12	—
linux-linux-kernel	2.6.12	2.6.12	—
linux-linux-kernel	2.6.12	2.6.12	—
linux-linux-kernel	2.6.12	2.6.12	—
linux-linux-kernel	2.6.12	2.6.12	—
linux-linux-kernel	7.0	7.0	—

Kaynaklar

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