CVE-2022-50055
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.
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.18% probability · 7th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.