{"id":"CVE-2026-72345","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: LAG, Fix off-by-one in single-FDB error rollback\n\nOn failure at index i, the reverse cleanup loop in\nmlx5_lag_create_single_fdb() starts from i, so the failed…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: LAG, Fix off-by-one in single-FDB error rollback\n\nOn failure at index i, the reverse cleanup loop in\nmlx5_lag_create_single_fdb() starts from i, so the failed…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-193"],"vendor":"Linux","product":"Linux","affected":["Linux >= ddbb5ddc43ad000a984149db5af1133433938404 < 0be672071d6e8c4d3be6a8f796d8e47198763770","Linux >= ddbb5ddc43ad000a984149db5af1133433938404 < 40cc06bf71476932e5d139fa326dcd0372766e16","Linux >= ddbb5ddc43ad000a984149db5af1133433938404 < 0f0e4ae6975c773f7854fc48932a267f6c79088f","Linux 8330e9f0214c0f0b73c57b3f3f619b64c8035029","Linux >= 6.12.113 < 6.13","Linux 6.14"],"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:17:24.443","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72345","references":[{"url":"https://git.kernel.org/stable/c/0be672071d6e8c4d3be6a8f796d8e47198763770","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0f0e4ae6975c773f7854fc48932a267f6c79088f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/40cc06bf71476932e5d139fa326dcd0372766e16","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72345.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-72345"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516323"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72345"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72345"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081511-CVE-2026-72345-d024@gregkh/T"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00173,"epssPercentile":0.06721,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:47:31.454617Z"},"scores":{"nvd":7.8,"vendor":5.5},"ingestedAt":"2026-10-15T11:00:41.686Z","slug":"CVE-2026-72345","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: LAG, Fix off-by-one in single-FDB error rollback\n\nOn failure at index i, the reverse cleanup loop in\nmlx5_lag_create_single_fdb() starts from i, so the failed index\nitself is rolled back. That can operate on uninitialized state or\ndouble-tear-down a rule the add_one path already self-rolled-back.\n\nStart the rollback from i - 1 so only successfully-installed entries\nare undone.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72345.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}