CVE-2026-23459

Katalog CVE

CVSS 8.2 · High EPSS 0,40%

Kerentanan pada linux kernel. Skor CVSS 3.1 8.2 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: ip_tunnel: adapt iptunnel_xmit_stats() to NETDEV_PCPU_STAT_DSTATS Blamed commits forgot that vxlan/geneve use udp_tunnel[6]_xmit_skb() which call iptunnel_xmit_stats(). iptunnel_xmit_stats() was assuming tunnels were only using NETDEV_PCPU_STAT_TSTATS. @syncp offset in pcpu_sw_netstats and pcpu_dstats is different. 32bit kernels would either have corruptions or freezes if the syncp sequence was overwritten. This patch also moves pcpu_stat_type closer to dev->{t,d}stats to avoid a potential cache line miss since iptunnel_xmit_stats() needs to read it.

Rincian

Terbit di NVD

3 April 2026

Terakhir diubah

7 September 2026

Status NVD

Modified

CVSS 3.1

8.2 (High), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H · uraikan di kalkulator

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 31,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0d087d00161f562d5047cc4009bb0c6a19daf9f1 patch
• https://git.kernel.org/stable/c/8431c602f551549f082bbfa67f3003f2d8e3e132 patch
• https://git.kernel.org/stable/c/5d562153b4719234227f99c2fb529f98a6a44d15
• https://git.kernel.org/stable/c/e40e2d11ced8119d3e4469ebe91264bc1cf71530