{"id":"CVE-2026-97573","summary":"bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset()\n\nbnxt_rx_ring_reset() frees the ring buffers and then reallocates them,\nignoring the result.\n\nbnxt_alloc_one_rx_ring() can fail in bnxt_alloc_one_tpa_info_data(), which\nreturns -ENOMEM on the first failed allocation and leaves the remaining\nrxr-\u003erx_tpa[] entries zeroed.\n\nThe error isn't propagated up, so the loop in bnxt_rx_ring_reset\ncontinues and at the end the code re-enables TPA with partially\nunallocated rx_tpa array.\n\nThis means that when the agg_id from hardware is mapped to a SW index in\nrxr-\u003erx_tpa[], an uninitialized slot can be chosen which would hand a\nzero DMA address to the device.\n\nFix this by falling back to a global reset, which is what the existing\ncode already does when other functions fail, but unlike the other\nfailure cases this particular failure has to return because TPA can't\nbe re-enabled since the allocation failed.","modified":"2026-10-09T17:26:59.876030215Z","published":"2026-09-25T10:21:57.443Z","related":["openSUSE-SU-2026:12074-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97573.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1a3670b6a6b5679fe56c5890157b344f091e64f8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/40b4a7bb6b0b872b45f017dbf211268de098b75c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4a17c73c83798c2fa9c7920ad5a98803adce3e01"},{"type":"WEB","url":"https://git.kernel.org/stable/c/52fc97cbc3ba118aad84e7c001bf02ebe8496f70"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8b2fd5c0aeda935294159206af9d6179282d425a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/961e2a17c5e3559b3f8654d2daabdd25a42e770a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/af9a2bdaba0b4ceb0fc5e5122ef3fc6b7e5a366a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfec9e7f15a56cb0104bac13d01e5d11e1ba84fb"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97573.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97573"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8fbf58e17dce8f250dda9ad6b0a49b3041f0af14"},{"fixed":"52fc97cbc3ba118aad84e7c001bf02ebe8496f70"},{"fixed":"40b4a7bb6b0b872b45f017dbf211268de098b75c"},{"fixed":"af9a2bdaba0b4ceb0fc5e5122ef3fc6b7e5a366a"},{"fixed":"cfec9e7f15a56cb0104bac13d01e5d11e1ba84fb"},{"fixed":"1a3670b6a6b5679fe56c5890157b344f091e64f8"},{"fixed":"4a17c73c83798c2fa9c7920ad5a98803adce3e01"},{"fixed":"8b2fd5c0aeda935294159206af9d6179282d425a"},{"fixed":"961e2a17c5e3559b3f8654d2daabdd25a42e770a"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-97573.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.0"},{"fixed":"5.10.271"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.222"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-97573.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}