CVE-2026-72326None▾ SunlitIn 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= a729b7f0bd5bf4919306556aed614438f5174537 < f511dd7bf6077aa7afbe72914520553fedaacbb4Linux >= a729b7f0bd5bf4919306556aed614438f5174537 < e1df6cff03aad8c96e55a8b2a991e505c7a3ff6fLinux >= a729b7f0bd5bf4919306556aed614438f5174537 < 297f459865360b46a887667cbf3aac6a6f013841Linux >= a729b7f0bd5bf4919306556aed614438f5174537 < 336c1e414fc0e9844d445174e8ada2a7dd8d1c4bLinux >= a729b7f0bd5bf4919306556aed614438f5174537 < bcdf3a3664f7d2c4e37e155f30f72ef33f041804Linux >= a729b7f0bd5bf4919306556aed614438f5174537 < 7aa0e64fea778a9e3df73e64da95367ff8ad2ea5Linux >= a729b7f0bd5bf4919306556aed614438f5174537 < f1e7807df5bf2d42a40266430e9f82f37633cdcfLinux >= a729b7f0bd5bf4919306556aed614438f5174537 < b7f97cae7ec1b6c3c32843c42be218690d310467Linux 4.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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