CVE-2025-22068

Summary

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

ublk: make sure ubq->canceling is set when queue is frozen

Now ublk driver depends on ubq->canceling for deciding if the request can be dispatched via uring_cmd & io_uring_cmd_complete_in_task().

Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd() and io_uring_cmd_done().

So set ubq->canceling when queue is frozen, this way makes sure that the flag can be observed from ublk_queue_rq() reliably, and avoids use-after-free on uring_cmd.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 7e3497d7dacb5aee69dd9be842b778083cae0e75affected
LinuxLinux216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 5491400589e7572c2d2627ed6384302f7672aa1daffected
LinuxLinux216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 9158359015f0eda00e521e35b7bc7ebce176aebfaffected
LinuxLinux216c8f5ef0f209a3797292c487bdaa6991ab4b92 < 8741d0737921ec1c03cf59aebf4d01400c2b461aaffected
LinuxLinux6.7affected
LinuxLinux0 < 6.7unaffected
LinuxLinux6.12.23 <= 6.12.*unaffected
LinuxLinux6.13.11 <= 6.13.*unaffected
LinuxLinux6.14.2 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References