{"id":"CVE-2025-21975","title":"net/mlx5: handle errors in mlx5_chains_create_table()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: handle errors in mlx5_chains_create_table()\n\nIn mlx5_chains_create_table(), the return value of mlx5_get_fdb_sub_ns()\nand mlx5_get_flow_namespace() must be ch…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 15bdd93728369b2c8942a8e5d549d4b5dc04a2d9","Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 29c419c64e9b396baeda1d8713d2aa3ba7c0acf6","Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 1598307c914ba3d2642a2b03d1ff11efbdb7c6c2","Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 637105ef0d46fe5beac15aceb431da3ec832bb00","Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 1d34296409a519b4027750e3e82d9e19553a7398","Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 093b4aaec97ec048623e3fe1e516fc45a954d412","Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < eab0396353be1c778eba1c0b5180176f04dd21ce","Linux 5.6"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:37:19.893866Z"},"published":"2025-04-01","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:41:48.550Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-21975","references":[{"url":"https://git.kernel.org/stable/c/15bdd93728369b2c8942a8e5d549d4b5dc04a2d9"},{"url":"https://git.kernel.org/stable/c/29c419c64e9b396baeda1d8713d2aa3ba7c0acf6"},{"url":"https://git.kernel.org/stable/c/1598307c914ba3d2642a2b03d1ff11efbdb7c6c2"},{"url":"https://git.kernel.org/stable/c/637105ef0d46fe5beac15aceb431da3ec832bb00"},{"url":"https://git.kernel.org/stable/c/1d34296409a519b4027750e3e82d9e19553a7398"},{"url":"https://git.kernel.org/stable/c/093b4aaec97ec048623e3fe1e516fc45a954d412"},{"url":"https://git.kernel.org/stable/c/eab0396353be1c778eba1c0b5180176f04dd21ce"}],"tags":["cve.org"],"epss":0.00211,"epssPercentile":0.11445,"ingestedAt":"2026-11-05T22:38:31.857Z","slug":"CVE-2025-21975","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: handle errors in mlx5_chains_create_table()\n\nIn mlx5_chains_create_table(), the return value of mlx5_get_fdb_sub_ns()\nand mlx5_get_flow_namespace() must be checked to prevent NULL pointer\ndereferences. If either function fails, the function should log error\nmessage with mlx5_core_warn() and return error pointer.\n\n## Affected\n\n- `Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 15bdd93728369b2c8942a8e5d549d4b5dc04a2d9`\n- `Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 29c419c64e9b396baeda1d8713d2aa3ba7c0acf6`\n- `Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 1598307c914ba3d2642a2b03d1ff11efbdb7c6c2`\n- `Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 637105ef0d46fe5beac15aceb431da3ec832bb00`\n- `Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 1d34296409a519b4027750e3e82d9e19553a7398`\n- `Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < 093b4aaec97ec048623e3fe1e516fc45a954d412`\n- `Linux >= 39ac237ce00968545e7298faa9e07ecb7e440fb5 < eab0396353be1c778eba1c0b5180176f04dd21ce`\n- `Linux 5.6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}