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CVE-2026-72345

net/mlx5: LAG, Fix off-by-one in single-FDB error rollback

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.13, 6.18.57, 7.1.5
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: LAG, Fix off-by-one in single-FDB error rollback On failure at index i, the reverse cleanup loop in mlx5_lag_create_single_fdb() starts from i, so the failed index itself is rolled back. That can operate on uninitialized state or double-tear-down a rule the add_one path already self-rolled-back. Start the rollback from i - 1 so only successfully-installed entries are undone.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From ddbb5ddc43ad000a984149db5af1133433938404 · fixed in 0be672071d6e8c4d3be6a8f796d8e47198763770; From ddbb5ddc43ad000a984149db5af1133433938404 · fixed in 40cc06bf71476932e5d139fa326dcd0372766e16; From ddbb5ddc43ad000a984149db5af1133433938404 · fixed in 0f0e4ae6975c773f7854fc48932a267f6c79088f; From 6.12.113 · fixed in 6.13

  • Linux Linux

    6.14

  • KernelLinux

    From 6.14.0 · fixed in 6.18.57; From 6.19.0 · fixed in 7.1.5

References 3

git.kernel.org