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Description

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.

PUBLISHED Reserved 2025-12-24 | Published 2025-12-24 | Updated 2026-01-05 | Assigner Linux

Product status

Default status
unaffected

e057dd3fc20ffb3d7f150af46542a51b59b90127 (git) before de3c02383aa678f6799402ac47fdd89cf4bfcaa9
affected

e057dd3fc20ffb3d7f150af46542a51b59b90127 (git) before 2fc6f337257f4f7c21ecff429241f7acaa6df4e8
affected

e057dd3fc20ffb3d7f150af46542a51b59b90127 (git) before 9427584c2f153d0677ef3bad6f44028c60d728c4
affected

e057dd3fc20ffb3d7f150af46542a51b59b90127 (git) before dd4faace51e41a82a8c0770ee0cc26088f9d9d06
affected

e057dd3fc20ffb3d7f150af46542a51b59b90127 (git) before c6adf659a8ba85913e16a571d5a9bcd17d3d1234
affected

Default status
affected

5.10
affected

Any version before 5.10
unaffected

5.10.200 (semver)
unaffected

5.15.138 (semver)
unaffected

6.1.16 (semver)
unaffected

6.2.3 (semver)
unaffected

6.3 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/de3c02383aa678f6799402ac47fdd89cf4bfcaa9

git.kernel.org/...c/2fc6f337257f4f7c21ecff429241f7acaa6df4e8

git.kernel.org/...c/9427584c2f153d0677ef3bad6f44028c60d728c4

git.kernel.org/...c/dd4faace51e41a82a8c0770ee0cc26088f9d9d06

git.kernel.org/...c/c6adf659a8ba85913e16a571d5a9bcd17d3d1234

cve.org (CVE-2023-54105)

nvd.nist.gov (CVE-2023-54105)

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