CVE-2026-72120

Summary

In the Linux kernel, the following vulnerability has been resolved:

can: bcm: add missing rcu list annotations and operations

sashiko-bot remarked the missing use of list_add_rcu() in bcm_[rx|tx]_setup() to have a proper initialized bcm_op structure when bcm_proc_show() traverses the bcm_op's under rcu_read_lock().

To cover all initial settings of the bcm_op's the list_add_rcu() calls are moved to the end of the setup code.

While at it, also fix the mirroring removal side: bcm_release() called bcm_remove_op() - which frees the op via call_rcu() - on ops that were still linked in bo->tx_ops/bo->rx_ops, without list_del_rcu() first. Unlink each op with list_del_rcu() before handing it to bcm_remove_op(), matching the existing pattern in bcm_delete_tx_op()/bcm_delete_rx_op().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux659701c0b954ccdb4a916a4ad59bbc16e726d42c < 8357255e56dc1aaa437e3c53ee9385de984e0d57affected
LinuxLinux0622846db728a5332b917c797c733e202c4620ae < 8e1c7257c81577130f5ce90f69b2a2c3ce63f957affected
LinuxLinux6d7d458c41b98a5c1670cbd36f2923c37de51cf5 < eb1c26eab4d1f0b4450439b4b88c3e73faf1da98affected
LinuxLinux1f912f8484e9c4396378c39460bbea0af681f319 < f53bdab85e64eb57d6899a30d1307fd5a3639cc7affected
LinuxLinux63567ecd99a24495208dc860d50fb17440043006 < 4e22e8b505f877573bbdfdbcb680babad9b2f7a1affected
LinuxLinuxdac5e6249159ac255dad9781793dbe5908ac9ddb < b06a4a397ac826603f39875cb7c7819a41365196affected
LinuxLinuxdac5e6249159ac255dad9781793dbe5908ac9ddb < 30f7bb922cb7e7f072a56c7cb7a5efccd2ceca1daffected
LinuxLinuxdac5e6249159ac255dad9781793dbe5908ac9ddb < 7b2c3eabc4dafc062a25e10711154f2107526a78affected
LinuxLinux19f553a1ddf260da6570ed8f8d91a8c87f49b63aaffected
LinuxLinux7c9db92d5f0eadca30884af75c53d601edc512eeaffected
LinuxLinux5.10.238 < 5.10.261affected
LinuxLinux5.15.185 < 5.15.212affected
LinuxLinux6.1.141 < 6.1.178affected
LinuxLinux6.6.93 < 6.6.145affected
LinuxLinux6.12.31 < 6.12.97affected
LinuxLinux5.4.294 < 5.5affected
LinuxLinux6.14.9 < 6.15affected
LinuxLinux6.15affected
LinuxLinux0 < 6.15unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References