CVE-2023-54105

Summary

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

can: isotp: check CAN address family in isotp_bind()

Add missing check to block non-AF_CAN binds.

Syzbot created some code which matched the right sockaddr struct size but used AF_XDP (0x2C) instead of AF_CAN (0x1D) in the address family field:

bind$xdp(r2, &(0x7f0000000540)={0x2c, 0x0, r4, 0x0, r2}, 0x10) ^^^^ This has no funtional impact but the userspace should be notified about the wrong address family field content.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe057dd3fc20ffb3d7f150af46542a51b59b90127 < de3c02383aa678f6799402ac47fdd89cf4bfcaa9affected
LinuxLinuxe057dd3fc20ffb3d7f150af46542a51b59b90127 < 2fc6f337257f4f7c21ecff429241f7acaa6df4e8affected
LinuxLinuxe057dd3fc20ffb3d7f150af46542a51b59b90127 < 9427584c2f153d0677ef3bad6f44028c60d728c4affected
LinuxLinuxe057dd3fc20ffb3d7f150af46542a51b59b90127 < dd4faace51e41a82a8c0770ee0cc26088f9d9d06affected
LinuxLinuxe057dd3fc20ffb3d7f150af46542a51b59b90127 < c6adf659a8ba85913e16a571d5a9bcd17d3d1234affected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux5.10.200 <= 5.10.*unaffected
LinuxLinux5.15.138 <= 5.15.*unaffected
LinuxLinux6.1.16 <= 6.1.*unaffected
LinuxLinux6.2.3 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

References