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Vulnerability · Published May 8, 2026 · Assigned by Linux

CVE-2026-43353i3c: mipi-i3c-hci: Fix race in DMA ring dequeue

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 97.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Fix race in DMA ring dequeue The HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for multiple transfers that timeout around the same time. However, the function is not serialized and can race with itself. When a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes incomplete transfers, and then restarts the ring. If another timeout triggers a parallel call into the same function, the two instances may interfere with each other - stopping or restarting the ring at unexpected times. Add a mutex so that hci_dma_dequeue_xfer() is serialized with respect to itself.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-43353
Debian:13linux6.12.115-2DEBIAN-CVE-2026-43353
Debian:14linux6.19.10-1DEBIAN-CVE-2026-43353
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1035.38UBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43353
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-43353
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-43353
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-43353

Affected products (as reported)

VendorProductVersions
Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07 – before d2fa9b855c7b42b34b2fb32731bf5339523703849ad9a52cce2828d932ae9495181e3d6414f72c07 – before 73bb6b15f1fd71479ed12b314876f3ce5935b80a9ad9a52cce2828d932ae9495181e3d6414f72c07 – before 16061383a9def977e4be908c7dcede9a8a4227fd9ad9a52cce2828d932ae9495181e3d6414f72c07 – before b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e9ad9a52cce2828d932ae9495181e3d6414f72c07 – before 4faa1e9c67a2229f6749190aedaf88ce0391efd29ad9a52cce2828d932ae9495181e3d6414f72c07 – before 1dca8aee80eea76d2aae21265de5dd64f6ba0f09
Linux Linux 5.11

References