{"id":"CVE-2026-72120","title":"can: bcm: add missing rcu list annotations and operations","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: add missing rcu list annotations and operations\n\nsashiko-bot remarked the missing use of list_add_rcu() in\nbcm_[rx|tx]_setup() to have a proper initialized bc…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 659701c0b954ccdb4a916a4ad59bbc16e726d42c < 8357255e56dc1aaa437e3c53ee9385de984e0d57","Linux >= 0622846db728a5332b917c797c733e202c4620ae < 8e1c7257c81577130f5ce90f69b2a2c3ce63f957","Linux >= 6d7d458c41b98a5c1670cbd36f2923c37de51cf5 < eb1c26eab4d1f0b4450439b4b88c3e73faf1da98","Linux >= 1f912f8484e9c4396378c39460bbea0af681f319 < f53bdab85e64eb57d6899a30d1307fd5a3639cc7","Linux >= 63567ecd99a24495208dc860d50fb17440043006 < 4e22e8b505f877573bbdfdbcb680babad9b2f7a1","Linux >= dac5e6249159ac255dad9781793dbe5908ac9ddb < b06a4a397ac826603f39875cb7c7819a41365196","Linux >= dac5e6249159ac255dad9781793dbe5908ac9ddb < 30f7bb922cb7e7f072a56c7cb7a5efccd2ceca1d","Linux >= dac5e6249159ac255dad9781793dbe5908ac9ddb < 7b2c3eabc4dafc062a25e10711154f2107526a78","Linux 19f553a1ddf260da6570ed8f8d91a8c87f49b63a","Linux 7c9db92d5f0eadca30884af75c53d601edc512ee","Linux >= 5.10.238 < 5.10.261","Linux >= 5.15.185 < 5.15.212","Linux >= 6.1.141 < 6.1.178","Linux >= 6.6.93 < 6.6.145","Linux >= 6.12.31 < 6.12.97","Linux >= 5.4.294 < 5.5","Linux >= 6.14.9 < 6.15","Linux 6.15"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:41:58.342764Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:44:57.136Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72120","references":[{"url":"https://git.kernel.org/stable/c/8357255e56dc1aaa437e3c53ee9385de984e0d57"},{"url":"https://git.kernel.org/stable/c/8e1c7257c81577130f5ce90f69b2a2c3ce63f957"},{"url":"https://git.kernel.org/stable/c/eb1c26eab4d1f0b4450439b4b88c3e73faf1da98"},{"url":"https://git.kernel.org/stable/c/f53bdab85e64eb57d6899a30d1307fd5a3639cc7"},{"url":"https://git.kernel.org/stable/c/4e22e8b505f877573bbdfdbcb680babad9b2f7a1"},{"url":"https://git.kernel.org/stable/c/b06a4a397ac826603f39875cb7c7819a41365196"},{"url":"https://git.kernel.org/stable/c/30f7bb922cb7e7f072a56c7cb7a5efccd2ceca1d"},{"url":"https://git.kernel.org/stable/c/7b2c3eabc4dafc062a25e10711154f2107526a78"}],"tags":["cve.org"],"epss":0.00169,"epssPercentile":0.05785,"ingestedAt":"2026-10-16T19:46:24.430Z","slug":"CVE-2026-72120","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: add missing rcu list annotations and operations\n\nsashiko-bot remarked the missing use of list_add_rcu() in\nbcm_[rx|tx]_setup() to have a proper initialized bcm_op structure\nwhen bcm_proc_show() traverses the bcm_op's under rcu_read_lock().\n\nTo cover all initial settings of the bcm_op's the list_add_rcu() calls\nare moved to the end of the setup code.\n\nWhile at it, also fix the mirroring removal side: bcm_release() called\nbcm_remove_op() - which frees the op via call_rcu() - on ops that were\nstill linked in bo->tx_ops/bo->rx_ops, without list_del_rcu() first.\nUnlink each op with list_del_rcu() before handing it to bcm_remove_op(),\nmatching the existing pattern in bcm_delete_tx_op()/bcm_delete_rx_op().\n\n## Affected\n\n- `Linux >= 659701c0b954ccdb4a916a4ad59bbc16e726d42c < 8357255e56dc1aaa437e3c53ee9385de984e0d57`\n- `Linux >= 0622846db728a5332b917c797c733e202c4620ae < 8e1c7257c81577130f5ce90f69b2a2c3ce63f957`\n- `Linux >= 6d7d458c41b98a5c1670cbd36f2923c37de51cf5 < eb1c26eab4d1f0b4450439b4b88c3e73faf1da98`\n- `Linux >= 1f912f8484e9c4396378c39460bbea0af681f319 < f53bdab85e64eb57d6899a30d1307fd5a3639cc7`\n- `Linux >= 63567ecd99a24495208dc860d50fb17440043006 < 4e22e8b505f877573bbdfdbcb680babad9b2f7a1`\n- `Linux >= dac5e6249159ac255dad9781793dbe5908ac9ddb < b06a4a397ac826603f39875cb7c7819a41365196`\n- `Linux >= dac5e6249159ac255dad9781793dbe5908ac9ddb < 30f7bb922cb7e7f072a56c7cb7a5efccd2ceca1d`\n- `Linux >= dac5e6249159ac255dad9781793dbe5908ac9ddb < 7b2c3eabc4dafc062a25e10711154f2107526a78`\n- `Linux 19f553a1ddf260da6570ed8f8d91a8c87f49b63a`\n- `Linux 7c9db92d5f0eadca30884af75c53d601edc512ee`\n- `Linux >= 5.10.238 < 5.10.261`\n- `Linux >= 5.15.185 < 5.15.212`\n- `Linux >= 6.1.141 < 6.1.178`\n- `Linux >= 6.6.93 < 6.6.145`\n- `Linux >= 6.12.31 < 6.12.97`\n- `Linux >= 5.4.294 < 5.5`\n- `Linux >= 6.14.9 < 6.15`\n- `Linux 6.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}