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high7.8

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 o…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.0.4 before 5.4.189
from 5.5 before 5.10.111
from 5.11 before 5.15.34
from 5.16 before 5.16.20
from 5.17 before 5.17.3
Version 5.18

Weakness classification

CWE-362CWE-667

References