CVE-2022-50055
MediumIn 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 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
3.14
and later are affected. Fixed in
5.4.211,
5.10.138,
5.15.63,
5.19.4,
6.0
and their respective stable series.
References
The following references provide additional information about CVE-2022-50055 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/35c63581fdefdcbaeae8cded18908523252353ad
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PatchKernel patch commithttps://git.kernel.org/stable/c/419831617ed349992c84344dbd9e627f9e68f842
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PatchKernel patch commithttps://git.kernel.org/stable/c/4fe80492d53971d9a49f39f3c86d2d67c6f3638a
Frequently asked questions
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What is CVE-2022-50055?
CVE-2022-50055 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.14 onward and has been patched in 5.4.211, 5.10.138, 5.15.63 and others. CVE-2022-50055 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-50055?
CVE-2022-50055 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-50055?
Yes — CVE-2022-50055 has been patched. Fixed versions include 5.4.211, 5.10.138, 5.15.63 and others. If you are running Linux kernel 3.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50055 actively exploited?
No — CVE-2022-50055 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.