{"id":"CVE-2026-43157","title":"octeontx2-af: CGX: fix bitmap leaks","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: CGX: fix bitmap leaks\n\nThe RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap)\nare allocated by cgx_lmac_init() but never freed in cgx_lmac_e…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e740003874edc13e468d19233f99787bedb4bb8e < ad8a13a45c5c24d0d32de9a1c3fd58498a675ece","Linux >= e740003874edc13e468d19233f99787bedb4bb8e < 013ac469596a0b8671e62d89c89ae0bd46bbe667","Linux >= e740003874edc13e468d19233f99787bedb4bb8e < ccef79af58b43787c25710c9da96651c6ddfe50f","Linux >= e740003874edc13e468d19233f99787bedb4bb8e < 6d389382ee655128056fbdab86baad8495ffbf33","Linux >= e740003874edc13e468d19233f99787bedb4bb8e < ccca14bbdcc25829d355b9f4d3249f43dadb71c1","Linux >= e740003874edc13e468d19233f99787bedb4bb8e < 3def995c4ede842adf509c410e92d09a0cedc965","Linux 5.18"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T15:29:55.478487Z"},"published":"2026-05-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T15:32:34.398Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43157","references":[{"url":"https://git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece"},{"url":"https://git.kernel.org/stable/c/013ac469596a0b8671e62d89c89ae0bd46bbe667"},{"url":"https://git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f"},{"url":"https://git.kernel.org/stable/c/6d389382ee655128056fbdab86baad8495ffbf33"},{"url":"https://git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1"},{"url":"https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965"}],"tags":["cve.org"],"epss":0.00128,"epssPercentile":0.0247,"ingestedAt":"2026-11-06T15:54:04.020Z","slug":"CVE-2026-43157","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: CGX: fix bitmap leaks\n\nThe RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap)\nare allocated by cgx_lmac_init() but never freed in cgx_lmac_exit().\nUnbinding and rebinding the driver therefore triggers kmemleak:\n\n    unreferenced object (size 16):\n        backtrace:\n          rvu_alloc_bitmap\n          cgx_probe\n\nFree both bitmaps during teardown.\n\n## Affected\n\n- `Linux >= e740003874edc13e468d19233f99787bedb4bb8e < ad8a13a45c5c24d0d32de9a1c3fd58498a675ece`\n- `Linux >= e740003874edc13e468d19233f99787bedb4bb8e < 013ac469596a0b8671e62d89c89ae0bd46bbe667`\n- `Linux >= e740003874edc13e468d19233f99787bedb4bb8e < ccef79af58b43787c25710c9da96651c6ddfe50f`\n- `Linux >= e740003874edc13e468d19233f99787bedb4bb8e < 6d389382ee655128056fbdab86baad8495ffbf33`\n- `Linux >= e740003874edc13e468d19233f99787bedb4bb8e < ccca14bbdcc25829d355b9f4d3249f43dadb71c1`\n- `Linux >= e740003874edc13e468d19233f99787bedb4bb8e < 3def995c4ede842adf509c410e92d09a0cedc965`\n- `Linux 5.18`\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":[]}