Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to slab out-of-bound access. This patch adds back the IP_SET_HASH_WITH_NET0 macro to ip_set_hash_netportnet to address the issue.
Affected products
linux: linux kernel
References9
- git.kernel.org/stable/c/050d91c03b28ca479df13dfb02bcd2c60dd6a878 Patch
- git.kernel.org/stable/c/109e830585e89a03d554bf8ad0e668630d0a6260 Patch
- git.kernel.org/stable/c/7935b636dd693dfe4483cfef4a1e91366c8103fa Patch
- git.kernel.org/stable/c/7ca0706c68adadf86a36b60dca090f5e9481e808 Patch
- git.kernel.org/stable/c/83091f8ac03f118086596f17c9a52d31d6ca94b3 Patch
- git.kernel.org/stable/c/a9e6142e5f8f6ac7d1bca45c1b2b13b084ea9e14 Patch
- git.kernel.org/stable/c/d59b6fc405549f7caf31f6aa5da1d6bef746b166 Patch
- git.kernel.org/stable/c/d95c8420efe684b964e3aa28108e9a354bcd7225 Patch
- git.kernel.org/stable/c/e632d09dffc68b9602d6893a99bfe3001d36cefc Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 8 November 2026
- CWE
- CWE-787
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