CVE-2026-23459: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 1db9041e91ac574f1cecc0e98e69ac35832e8088 преди 127c5e6e2d6fa8185314537c08204ec3515eae99; cb1c1f3b7ef908408064734fb6bdaf5811b8b84c преди e40e2d11ced8119d3e4469ebe91264bc1cf71530; be226352e8dc77d3313c096b2d8e7f69bf6980fc преди 5d562153b4719234227f99c2fb529f98a6a44d15; be226352e8dc77d3313c096b2d8e7f69bf6980fc преди 0d087d00161f562d5047cc4009bb0c6a19daf9f1; be226352e8dc77d3313c096b2d8e7f69bf6980fc преди 8431c602f551549f082bbfa67f3003f2d8e3e132; 6.6.153 преди 6.6.160
• Linux Linux: 6.14; преди 6.14; 6.6.160 до 6.6.*; 6.18.50 до 6.18.*; 6.19.10 до 6.19.*; от 7.0 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-23459
• https://nvd.nist.gov/vuln/detail/CVE-2026-23459
• https://git.kernel.org/stable/c/127c5e6e2d6fa8185314537c08204ec3515eae99
• https://git.kernel.org/stable/c/e40e2d11ced8119d3e4469ebe91264bc1cf71530
• https://git.kernel.org/stable/c/5d562153b4719234227f99c2fb529f98a6a44d15
• https://git.kernel.org/stable/c/0d087d00161f562d5047cc4009bb0c6a19daf9f1
• https://git.kernel.org/stable/c/8431c602f551549f082bbfa67f3003f2d8e3e132