Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Release the VGA arbiter client on register_device() failure The re-order in the Fixes commit below displaced vfio_pci_vga_init() as the last failure point of what is now vfio_pci_core_register_device() without introducing an unwind for the VGA arbiter registration. In current kernels this is mostly benign because vfio_pci_set_decode() only uses pci_dev state, but the original failure path could leave a callback with a freed vdev cookie. The stale registration also becomes unsafe again once the callback follows drvdata to the vfio device. Add the required VGA unwind callout.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 87856f9af04eaacf9848710625a4ffee1d020fa9 before 0f2a35a0c7ea7da347b814750eaa78adf3582381; affected 4aeec3984ddc853f7c65903bde472ffdef738bae before 8d65decde9afd2bd78bcfffdc0df73b82a0b5509; affected 4aeec3984ddc853f7c65903bde472ffdef738bae before ef4c38d30b3744e89eb5048218904bb629ea8d47; affected 4aeec3984ddc853f7c65903bde472ffdef738bae before 9e0a3f642e607848669235f5069f35640abbfc88; affected 4aeec3984ddc853f7c65903bde472ffdef738bae before 42d758a09d2c46c42357ecde9a5492f015bde2e5; affected 4aeec3984ddc853f7c65903bde472ffdef738bae before 52adb2dff7ce3d8430e2bdc5988b618a430def85; affected 4aeec3984ddc853f7c65903bde472ffdef738bae before 278a5659c391fe5afe5f9ce1bad1fd24e90144f1; affected 4aeec3984ddc853f7c65903bde472ffdef738bae before daedde7f024ecf88bc8e832ed40cf2c795f0796a; affected d62dccb417cf972c978bf3c68a7d5e846bcf953e; affected 6694b8daffac5a8661071f085608afc78f7acd08; affected 5.10.37 before 5.10.261; affected 5.11.21 before 5.12; affected 5.12.4 before 5.13 |
| Linux / Linux | affected 5.13; unaffected 0 before 5.13; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0f2a35a0c7ea7da347b814750eaa78adf3582381
- https://git.kernel.org/stable/c/8d65decde9afd2bd78bcfffdc0df73b82a0b5509
- https://git.kernel.org/stable/c/ef4c38d30b3744e89eb5048218904bb629ea8d47
- https://git.kernel.org/stable/c/9e0a3f642e607848669235f5069f35640abbfc88
- https://git.kernel.org/stable/c/42d758a09d2c46c42357ecde9a5492f015bde2e5
- https://git.kernel.org/stable/c/52adb2dff7ce3d8430e2bdc5988b618a430def85
- https://git.kernel.org/stable/c/278a5659c391fe5afe5f9ce1bad1fd24e90144f1
- https://git.kernel.org/stable/c/daedde7f024ecf88bc8e832ed40cf2c795f0796a
ADP enrichment
No English description supplied.
No references supplied.