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Vulnerability · Published Sep 11, 2026 · Assigned by Linux

CVE-2026-89441mmc: via-sdmmc: cancel card-detect work on remove

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 3% 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 97.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: cancel card-detect work on remove Disabling the device interrupt and freeing the IRQ prevents new card-detect work from being queued, but carddet_work already queued by the handler can still run after via_sd_remove() returns. via_sdc_card_detect() recovers the host through container_of() and dereferences its MMIO base; once remove() returns the host can be freed, so that work would touch freed memory. Cancel carddet_work after freeing the IRQ and before cancelling finish_bh_work, which the card-detect handler can also queue. carddet_work can re-enable the interrupt through via_reset_pcictrl(); mask it again afterwards. This issue was found by an in-house static analysis tool and confirmed by manual code review.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-89441
Debian:13linux6.12.113-1DEBIAN-CVE-2026-89441
Debian:14linux7.2.6-1DEBIAN-CVE-2026-89441
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-89441
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1038.42UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89441
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-89441
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-89441
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-89441

Affected products (as reported)

VendorProductVersions
Linux Linux f0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before 28e8e9e1f3bdb75b611ea14c39775455528c4012f0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before a32603f9b4dd0a1c3ea5845eec7c95f5f8741b3df0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before 3ee1b5c8618a26811840bf9f45cb3120dac1e273f0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before 55d71c70f11d9f92c7d2653774001e98cb509debf0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before 0a3c70191868fb007c03ff79693ad4e4b3fdcbb8f0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before f7ff3027ef004a331ef911a4886f12bc2e996037f0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before eaca730c6f5e3609df62a0469fb789235a93d276f0bf7f61b8405224bc52fc9a3ccd167a68126e00 – before 57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5
Linux Linux 2.6.31

References