CVE-2022-49089

In the Linux kernel, the following vulnerability has been resolved: IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition The documentation of the function rvt_error_qp says both r_lock and s_lock need to be held when calling that function. It also asserts using lockdep that both of those locks are held. However, the commit I referenced in Fixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no longer covered by r_lock. This results in the lockdep assertion failing and also possibly in a race condition.

• linux linux kernel (>= 5.0.4 < 5.4.189) • linux linux kernel (>= 5.5 < 5.10.111) • linux linux kernel (>= 5.11 < 5.15.34) • linux linux kernel (>= 5.16 < 5.16.20) • linux linux kernel (>= 5.17 < 5.17.3) • linux linux kernel 5.18