CVE-2026-72326: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net/sched: cake: reject overhead values that underflow length CAKE accepts signed overhead values and stores them in an s16, but the adjusted packet length calculation uses unsigned arithmetic. A negative effective length can therefore wrap to a large value. Such configurations make rate accounting depend on integer wraparound rather than on the packet size userspace intended to model. A static netlink lower bound is not enough because packets reaching CAKE can be smaller than any reasonable manual-overhead allowance. Fold the signed overhead adjustment into the existing datapath MPU clamp so negative adjusted lengths are clamped before link-layer framing adjustments.

Засегнати продукти

• Linux Linux: a729b7f0bd5bf4919306556aed614438f5174537 преди f511dd7bf6077aa7afbe72914520553fedaacbb4; a729b7f0bd5bf4919306556aed614438f5174537 преди e1df6cff03aad8c96e55a8b2a991e505c7a3ff6f; a729b7f0bd5bf4919306556aed614438f5174537 преди 297f459865360b46a887667cbf3aac6a6f013841; a729b7f0bd5bf4919306556aed614438f5174537 преди 336c1e414fc0e9844d445174e8ada2a7dd8d1c4b; a729b7f0bd5bf4919306556aed614438f5174537 преди bcdf3a3664f7d2c4e37e155f30f72ef33f041804; a729b7f0bd5bf4919306556aed614438f5174537 преди 7aa0e64fea778a9e3df73e64da95367ff8ad2ea5; a729b7f0bd5bf4919306556aed614438f5174537 преди f1e7807df5bf2d42a40266430e9f82f37633cdcf; a729b7f0bd5bf4919306556aed614438f5174537 преди b7f97cae7ec1b6c3c32843c42be218690d310467
• Linux Linux: 4.19; преди 4.19; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 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-2026-72326
• https://nvd.nist.gov/vuln/detail/CVE-2026-72326
• https://git.kernel.org/stable/c/f511dd7bf6077aa7afbe72914520553fedaacbb4
• https://git.kernel.org/stable/c/e1df6cff03aad8c96e55a8b2a991e505c7a3ff6f
• https://git.kernel.org/stable/c/297f459865360b46a887667cbf3aac6a6f013841
• https://git.kernel.org/stable/c/336c1e414fc0e9844d445174e8ada2a7dd8d1c4b
• https://git.kernel.org/stable/c/bcdf3a3664f7d2c4e37e155f30f72ef33f041804
• https://git.kernel.org/stable/c/7aa0e64fea778a9e3df73e64da95367ff8ad2ea5
• https://git.kernel.org/stable/c/f1e7807df5bf2d42a40266430e9f82f37633cdcf
• https://git.kernel.org/stable/c/b7f97cae7ec1b6c3c32843c42be218690d310467