{"id":"CVE-2026-53088","title":"net: bcmgenet: fix off-by-one in bcmgenet_put_txcb","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: fix off-by-one in bcmgenet_put_txcb\n\nThe write_ptr points to the next open tx_cb. We want to return the\ntx_cb that gets rewinded, so we must rewind the p…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 14e9f86564fff7bcf7f45c1b69080e837b31d185","Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de","Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 85f34ec320d3881badfd4edc5fee5cd5012bb54d","Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 2a74590170427a3ca7cc4bb8690cdd559129c29c","Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 29394f722f620281f2ee9a47f947734e53d72c90","Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 4cab761fc51c65aef741fcece4a18f3554edbc09","Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 72df896e31ddd06fcc5a789f025ad7a62a18bc9b","Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38","Linux 3bdf77194ea822390b405639b77659071fd2c2e9","Linux >= 3.16.50 < 3.17","Linux 4.13"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-16T15:25:29.702977Z"},"published":"2026-06-24","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:31:31.972Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53088","references":[{"url":"https://git.kernel.org/stable/c/14e9f86564fff7bcf7f45c1b69080e837b31d185"},{"url":"https://git.kernel.org/stable/c/fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de"},{"url":"https://git.kernel.org/stable/c/85f34ec320d3881badfd4edc5fee5cd5012bb54d"},{"url":"https://git.kernel.org/stable/c/2a74590170427a3ca7cc4bb8690cdd559129c29c"},{"url":"https://git.kernel.org/stable/c/29394f722f620281f2ee9a47f947734e53d72c90"},{"url":"https://git.kernel.org/stable/c/4cab761fc51c65aef741fcece4a18f3554edbc09"},{"url":"https://git.kernel.org/stable/c/72df896e31ddd06fcc5a789f025ad7a62a18bc9b"},{"url":"https://git.kernel.org/stable/c/57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38"}],"tags":["cve.org"],"epss":0.00399,"epssPercentile":0.32547,"ingestedAt":"2026-10-16T17:24:46.730Z","slug":"CVE-2026-53088","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: fix off-by-one in bcmgenet_put_txcb\n\nThe write_ptr points to the next open tx_cb. We want to return the\ntx_cb that gets rewinded, so we must rewind the pointer first then\nreturn the tx_cb that it points to. That way the txcb can be correctly\ncleaned up.\n\n## Affected\n\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 14e9f86564fff7bcf7f45c1b69080e837b31d185`\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de`\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 85f34ec320d3881badfd4edc5fee5cd5012bb54d`\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 2a74590170427a3ca7cc4bb8690cdd559129c29c`\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 29394f722f620281f2ee9a47f947734e53d72c90`\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 4cab761fc51c65aef741fcece4a18f3554edbc09`\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 72df896e31ddd06fcc5a789f025ad7a62a18bc9b`\n- `Linux >= 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 < 57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38`\n- `Linux 3bdf77194ea822390b405639b77659071fd2c2e9`\n- `Linux >= 3.16.50 < 3.17`\n- `Linux 4.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}