CVE-2026-72326
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net/sched: cake: reject overhead values that underflow length
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | f511dd7bf6077aa7afbe72914520553fedaacbb4 | Unavailable | None listed |
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | e1df6cff03aad8c96e55a8b2a991e505c7a3ff6f | Unavailable | None listed |
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | 297f459865360b46a887667cbf3aac6a6f013841 | Unavailable | None listed |
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | 336c1e414fc0e9844d445174e8ada2a7dd8d1c4b | Unavailable | None listed |
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | bcdf3a3664f7d2c4e37e155f30f72ef33f041804 | Unavailable | None listed |
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | 7aa0e64fea778a9e3df73e64da95367ff8ad2ea5 | Unavailable | None listed |
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | f1e7807df5bf2d42a40266430e9f82f37633cdcf | Unavailable | None listed |
| a729b7f0bd5bf4919306556aed614438f5174537 | affected | git | b7f97cae7ec1b6c3c32843c42be218690d310467 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.19 | Unavailable | None listed |
| 5.10.261 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |