Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iavf: Fix adminq error handling iavf_alloc_asq_bufs/iavf_alloc_arq_bufs allocates with dma_alloc_coherent memory for VF mailbox. Free DMA regions for both ASQ and ARQ in case error happens during configuration of ASQ/ARQ registers. Without this change it is possible to see when unloading interface: 74626.583369: dma_debug_device_change: device driver has pending DMA allocations while released from device [count=32] One of leaked entries details: [device address=0x0000000b27ff9000] [size=4096 bytes] [mapped with DMA_BIDIRECTIONAL] [mapped as coherent]
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.14, < 5.4.211 |
References
- https://git.kernel.org/stable/c/35c63581fdefdcbaeae8cded18908523252353adPatch
- https://git.kernel.org/stable/c/419831617ed349992c84344dbd9e627f9e68f842Patch
- https://git.kernel.org/stable/c/4fe80492d53971d9a49f39f3c86d2d67c6f3638aPatch
- https://git.kernel.org/stable/c/dab6b551f5ba4c79a0dd4970dd8533c37a7b100fPatch
- https://git.kernel.org/stable/c/ff289f2be5899efd0e897d2b434a78e36df2c69bPatch
FAQ
What is CVE-2022-50055?
CVE-2022-50055 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: iavf: Fix adminq error handling iavf_alloc_asq_bufs/iavf_alloc_arq_bufs allocates with dma_alloc_coherent memory for VF mailbox. F...
How severe is CVE-2022-50055?
CVE-2022-50055 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-50055?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.