{"id":"CVE-2026-43157","state":"PUBLISHED","title":"octeontx2-af: CGX: fix bitmap leaks","description":"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_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.","publishedAt":"2026-05-06T11:27:37.185Z","updatedAt":"2026-05-11T22:18:51.830Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"ad8a13a45c5c24d0d32de9a1c3fd58498a675ece","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"013ac469596a0b8671e62d89c89ae0bd46bbe667","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"ccef79af58b43787c25710c9da96651c6ddfe50f","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"6d389382ee655128056fbdab86baad8495ffbf33","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"ccca14bbdcc25829d355b9f4d3249f43dadb71c1","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"3def995c4ede842adf509c410e92d09a0cedc965","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/af/cgx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.18","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/af/cgx.c"]}],"references":["https://git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece","https://git.kernel.org/stable/c/013ac469596a0b8671e62d89c89ae0bd46bbe667","https://git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f","https://git.kernel.org/stable/c/6d389382ee655128056fbdab86baad8495ffbf33","https://git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1","https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43157.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43157","state":"PUBLISHED","datePublished":"2026-05-06T11:27:37.185Z","dateUpdated":"2026-05-11T22:18:51.830Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.990Z"},"containers":{"cna":{"title":"octeontx2-af: CGX: fix bitmap leaks","descriptions":[{"lang":"en","value":"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_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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"ad8a13a45c5c24d0d32de9a1c3fd58498a675ece","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"013ac469596a0b8671e62d89c89ae0bd46bbe667","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"ccef79af58b43787c25710c9da96651c6ddfe50f","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"6d389382ee655128056fbdab86baad8495ffbf33","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"ccca14bbdcc25829d355b9f4d3249f43dadb71c1","versionType":"git"},{"version":"e740003874edc13e468d19233f99787bedb4bb8e","status":"affected","lessThan":"3def995c4ede842adf509c410e92d09a0cedc965","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/af/cgx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.18","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/af/cgx.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:18:51.830Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}