CVE-2022-50055

Summary

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]

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd358aa9a7a2d5f91b1d33d5d4e27c2e46638d123 < ff289f2be5899efd0e897d2b434a78e36df2c69baffected
LinuxLinuxd358aa9a7a2d5f91b1d33d5d4e27c2e46638d123 < 4fe80492d53971d9a49f39f3c86d2d67c6f3638aaffected
LinuxLinuxd358aa9a7a2d5f91b1d33d5d4e27c2e46638d123 < dab6b551f5ba4c79a0dd4970dd8533c37a7b100faffected
LinuxLinuxd358aa9a7a2d5f91b1d33d5d4e27c2e46638d123 < 35c63581fdefdcbaeae8cded18908523252353adaffected
LinuxLinuxd358aa9a7a2d5f91b1d33d5d4e27c2e46638d123 < 419831617ed349992c84344dbd9e627f9e68f842affected
LinuxLinux3.14affected
LinuxLinux0 < 3.14unaffected
LinuxLinux5.4.211 <= 5.4.*unaffected
LinuxLinux5.10.138 <= 5.10.*unaffected
LinuxLinux5.15.63 <= 5.15.*unaffected
LinuxLinux5.19.4 <= 5.19.*unaffected
LinuxLinux6.0 <= *unaffected

Weaknesses

References