Skip to content
fr Sign in
7.8 High

CVE-2025-21826 In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of…

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12.

Affected products and versions

Product Affected versions Fixed in
Linux 6.14 earliest → < 6.14 6.14
Linux 6.13 earliest → < 6.13.2 6.13.2
Linux 6.12 earliest → < 6.12.13 6.12.13
Linux 6.8 No fix stated
Linux 6.6 earliest → < 6.6.76 6.6.76
Linux 6.1 earliest → < 6.1.129 6.1.129
Linux 5.15 earliest → < 5.15.179 5.15.179
Linux 5.10 earliest → < 5.10.235 5.10.235
SIMATIC S7-1500 TM MFP - BIOS Versions not published
Show the other branch
Product Affected versions Fixed in
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Linux

The 18283 CVEs of Linux →
CVE-2026-99270 In the Linux kernel, the following vulnerability has been resolved: tcp: Fix potential UAF in reqsk_timer_handler() 8.1 High CVE-2026-99269 In the Linux kernel, the following vulnerability has been resolved: sched_ext: Wait for SCX_OPSS_DISPATCHING before… 7.8 High CVE-2026-99261 In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: correct reservation fence slots for… Not rated CVE-2026-99260 In the Linux kernel, the following vulnerability has been resolved: ntfs: fix resident conversion in ntfs_new_attr_flags… Not rated
Track this CVE