CVE-2022-49089

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd757c60eca9b22f4d108929a24401e0fdecda0b1 < 8a50937227c385a477177c9ffa122b4230e40666affected
LinuxLinuxd757c60eca9b22f4d108929a24401e0fdecda0b1 < 43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0affected
LinuxLinuxd757c60eca9b22f4d108929a24401e0fdecda0b1 < 92f1947c0d26060e978b3a9f21f32ce7c8c9cca3affected
LinuxLinuxd757c60eca9b22f4d108929a24401e0fdecda0b1 < 77ffb2495a41098f9d6a14f8aefde3188da75944affected
LinuxLinuxd757c60eca9b22f4d108929a24401e0fdecda0b1 < 57800cc36e55db0547461c49acf5cd84c0f502b0affected
LinuxLinuxd757c60eca9b22f4d108929a24401e0fdecda0b1 < 4d809f69695d4e7d1378b3a072fa9aef23123018affected
LinuxLinux25636de95557a95d54ac30be94af3748345a0a90affected
LinuxLinux5.0.4 < 5.1affected
LinuxLinux5.1affected
LinuxLinux0 < 5.1unaffected
LinuxLinux5.4.189 <= 5.4.*unaffected
LinuxLinux5.10.111 <= 5.10.*unaffected
LinuxLinux5.15.34 <= 5.15.*unaffected
LinuxLinux5.16.20 <= 5.16.*unaffected
LinuxLinux5.17.3 <= 5.17.*unaffected
LinuxLinux5.18 <= *unaffected

Weaknesses

References