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Vulnerability · Published Sep 16, 2026 · Assigned by Linux

CVE-2026-90029usb: storage: realtek_cr: fix use-after-free on disconnect

Unrated

In plain English

A 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 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 90.4% 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: usb: storage: realtek_cr: fix use-after-free on disconnect realtek_cr_destructor() calls timer_delete() before the chip containing the timer is freed. The timer callback may still be running and can rearm itself, resulting in a use-after-free. Use timer_shutdown_sync() to wait for the callback and prevent further rearming. Do this unconditionally because ss_en may be changed after the timer is armed. Move timer_setup() into init_realtek_cr() so the timer is initialized before any failure path can invoke the destructor. Found by static analysis.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-90029
Debian:13linux6.12.113-1DEBIAN-CVE-2026-90029
Debian:14linux7.2.6-1DEBIAN-CVE-2026-90029
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-90029
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-90029
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-90029
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-90029
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-90029

Affected products (as reported)

VendorProductVersions
Linux Linux e931830bb877e2aad9a1be83506f9bdb26c91e4e – before f98c2f119fcd81cfede114d2fd3463a17aed8209e931830bb877e2aad9a1be83506f9bdb26c91e4e – before 0935e57ede003bbe35de9c5d6a49260999ca0314e931830bb877e2aad9a1be83506f9bdb26c91e4e – before c1e7e35100efffba7c9e1dfa76519d6cd323ba3de931830bb877e2aad9a1be83506f9bdb26c91e4e – before 524d4257f741cd95eb85e2817c9c890928fcfef7e931830bb877e2aad9a1be83506f9bdb26c91e4e – before 7c4e2f964c65dea4ea22386799d5fb10ef1e3e54e931830bb877e2aad9a1be83506f9bdb26c91e4e – before cae9dbba6adae21a04a3bd045e07b489847ff2c6e931830bb877e2aad9a1be83506f9bdb26c91e4e – before 4ffee1aebb0c0ffcda9faffd17834ea9b00d42cc
Linux Linux 3.1

References