CVE-2026-93117

Summary

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

usb: fix UAF when probe runs concurrent to dyn ID removal

Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held, as remove_id_store can free the node. Thus, make a copy in usb_probe_interface. Clarify the documentation that the id parameter is only valid during the probe.

USB serial has the same pattern, but it does not need fixing as the IDs cannot be removed via sysfs.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0c7a2b72746a96f999fd2728520d03d94879be69 < 9b82ddf76827e2a8ff033a8131ecf24f2d6cae26affected
LinuxLinux0c7a2b72746a96f999fd2728520d03d94879be69 < 44904468e58d3dc3a0229782acbeb9677b060541affected
LinuxLinux0c7a2b72746a96f999fd2728520d03d94879be69 < 64320c6e721bdec4c43a789c866c8a099dd0c843affected
LinuxLinux0c7a2b72746a96f999fd2728520d03d94879be69 < 7e795801295c84a6bbc10a3e7a4c99c50bfe45acaffected
LinuxLinux0c7a2b72746a96f999fd2728520d03d94879be69 < e6a9c6b79b70046afdf5a1dbd03b1104536f30c0affected
LinuxLinux0c7a2b72746a96f999fd2728520d03d94879be69 < ef8154d8b52d60338c1fd8d793cd8e891c604c14affected
LinuxLinux2.6.33affected
LinuxLinux0 < 2.6.33unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References