CVE-2026-72349

netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()

State: Published
Severity: Not scored
Published: Aug 15, 2026
Updated: Aug 17, 2026
Reserved: Aug 9, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()

On links faster than ~34 Gbps, where byte rate may exceed 2^32-1 (~ 4.3 GBps), the comparison result becomes incorrect because the truncated value no longer reflects the actual estimator rate.

Fix by changing the local variables to u64.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	1c0d32fde5bdf1184bc274f864c09799278a1114 to before 77e9ba358d63fe2eb03c90d29ea85651d95cf2e6Affected 1c0d32fde5bdf1184bc274f864c09799278a1114 to before a3ba938f45cb00f6bf49d3aa3647df9b017f5f08Affected 1c0d32fde5bdf1184bc274f864c09799278a1114 to before bab305dd769d78074adca73505cc2509e1206bf2Affected 1c0d32fde5bdf1184bc274f864c09799278a1114 to before 5da915fc159c6b4091669447588e520183969ccaAffected 1c0d32fde5bdf1184bc274f864c09799278a1114 to before d5cc4c12a4b90bf099199c3c49ecda7e694f2a2bAffected 1c0d32fde5bdf1184bc274f864c09799278a1114 to before e702f6dd5d21e331f55fd9168c0210542008546dAffected 1c0d32fde5bdf1184bc274f864c09799278a1114 to before 905a927b2e6fec7b174e9e5644d271047b61378fAffected 1c0d32fde5bdf1184bc274f864c09799278a1114 to before 444853cd438201007da5359821adcc2995655ab1Affected
LinuxLinux	4.10Affected before 4.10Not affected 5.10.261 through 5.10.Not affected 5.15.212 through 5.15.Not affected 6.1.178 through 6.1.Not affected 6.6.145 through 6.6.Not affected 6.12.97 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

1c0d32fde5bdf1184bc274f864c09799278a1114 to before 77e9ba358d63fe2eb03c90d29ea85651d95cf2e6Affected
1c0d32fde5bdf1184bc274f864c09799278a1114 to before a3ba938f45cb00f6bf49d3aa3647df9b017f5f08Affected
1c0d32fde5bdf1184bc274f864c09799278a1114 to before bab305dd769d78074adca73505cc2509e1206bf2Affected
1c0d32fde5bdf1184bc274f864c09799278a1114 to before 5da915fc159c6b4091669447588e520183969ccaAffected
1c0d32fde5bdf1184bc274f864c09799278a1114 to before d5cc4c12a4b90bf099199c3c49ecda7e694f2a2bAffected
1c0d32fde5bdf1184bc274f864c09799278a1114 to before e702f6dd5d21e331f55fd9168c0210542008546dAffected
1c0d32fde5bdf1184bc274f864c09799278a1114 to before 905a927b2e6fec7b174e9e5644d271047b61378fAffected
1c0d32fde5bdf1184bc274f864c09799278a1114 to before 444853cd438201007da5359821adcc2995655ab1Affected

LinuxLinux

4.10Affected
before 4.10Not affected
5.10.261 through 5.10.*Not affected
5.15.212 through 5.15.*Not affected
6.1.178 through 6.1.*Not affected
6.6.145 through 6.6.*Not affected
6.12.97 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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