CVE-2026-93108

Summary

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

RDMA/ipoib: Drain RCU callbacks during module teardown

IPoIB reclamation completions can be signaled from inside an RCU callback. Teardown can wake before the callback returns and unload ib_ipoib while its code is still executing.

Client registration failure can also remove already-added devices and queue callbacks. Wait after client and workqueue teardown.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < bb9c23733a0c50e136bd40c27cb60023cc58e22caffected
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < 4a6dc313f9661f80e4ed43461d7ed5615c2450caaffected
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < d8917353966d1d5a486437dd0dd68a2cf8ecb136affected
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < 7bc08d7f9338c9f9c09965e5d020591c793a80cbaffected
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < 2b3330cfc097db2d31f47ad09261967630270d66affected
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < 8dc5ffcb8efcc01e44dd1ebc490eaae72de3fadfaffected
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < 24ce944721dcd92ae62e7a448d770e2a3e79f5fdaffected
LinuxLinuxb63b70d8774175b6f8393c495fe455f0fba55ce1 < 31b7c700670830a0e8a4cdcd451c88a13cc5dc48affected
LinuxLinux3.6affected
LinuxLinux0 < 3.6unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
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