CVE-2023-53494

Summary

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

crypto: xts - Handle EBUSY correctly

As it is xts only handles the special return value of EINPROGRESS, which means that in all other cases it will free data related to the request.

However, as the caller of xts may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8083b1bf8163e7ae7d8c90f221106d96450b8aa8 < 92a07ba4f0af2cccdc2aa5ee32679c9c9714db90affected
LinuxLinux8083b1bf8163e7ae7d8c90f221106d96450b8aa8 < 912eb10b65646ffd222256c78a1c566a3dac177daffected
LinuxLinux8083b1bf8163e7ae7d8c90f221106d96450b8aa8 < 57c3e1d63b63dc0841d41df729297cd7c1c35808affected
LinuxLinux8083b1bf8163e7ae7d8c90f221106d96450b8aa8 < d5870848879291700fe6c5257dcb48aadd10425caffected
LinuxLinux8083b1bf8163e7ae7d8c90f221106d96450b8aa8 < 51c082514c2dedf2711c99d93c196cc4eedceb40affected
LinuxLinux5.4affected
LinuxLinux0 < 5.4unaffected
LinuxLinux5.10.173 <= 5.10.*unaffected
LinuxLinux5.15.99 <= 5.15.*unaffected
LinuxLinux6.1.16 <= 6.1.*unaffected
LinuxLinux6.2.3 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

References