In the Linux kernel, the following vulnerability has been resolved: net: Fix an unsafe loop on the list The kernel may crash when deleting a genetlink family if there are still listeners for that family: Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c000000000c080bc] netlink_update_socket_mc+0x3c/0xc0 LR [c000000000c0f764] __netlink_clear_multicast_users+0x74/0xc0 Call Trace: __netlink_clear_multicast_users+0x74/0xc0 genl_unregister_family+0xd4/0x2d0 Change the unsafe loop on the list to a safe one, because inside the loop there is an element removal from this list.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 7.3 | High | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | < 10.0.19045.3208 |
| Linux | Linux | < 10.0.10240.20048 |
| Linux | Linux | n/a |
| Linux | Linux | n/a |