CVE-2025-71157 PUBLISHED

RDMA/core: always drop device refcount in ib_del_sub_device_and_put()

Assigner: Linux
Reserved: 13.01.2026 Published: 23.01.2026 Updated: 23.01.2026

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

RDMA/core: always drop device refcount in ib_del_sub_device_and_put()

Since nldev_deldev() (introduced by commit 060c642b2ab8 ("RDMA/nldev: Add support to add/delete a sub IB device through netlink") grabs a reference using ib_device_get_by_index() before calling ib_del_sub_device_and_put(), we need to drop that reference before returning -EOPNOTSUPP error.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from bca51197620a257e2954be99b16f05115c3b2630 to 20436f2742a92b7afeb2504eb559a98d2196b001 (excl.)
  • affected from bca51197620a257e2954be99b16f05115c3b2630 to fe8d456080423b9ed410469fbd1e2098d3acce2b (excl.)
  • affected from bca51197620a257e2954be99b16f05115c3b2630 to fa3c411d21ebc26ffd175c7256c37cefa35020aa (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.11 is affected
  • unaffected from 0 to 6.11 (excl.)
  • unaffected from 6.12.64 to 6.12.* (incl.)
  • unaffected from 6.18.4 to 6.18.* (incl.)
  • unaffected from 6.19-rc4 to * (incl.)

References