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In the Linux kernel, the following vulnerability has been resolved:
serial: imx: fix tx statemachine deadlock
When using the serial port as RS485 port, the tx statemachine is used to control the RTS pin to drive the RS485 transceiver TX_EN pin. When the TTY port is closed in the middle of a transmission (for instance during userland application crash), imx_uart_shutdown disables the interface and disables the Transmission Complete interrupt. afer that, imx_uart_stop_tx bails on an incomplete transmission, to be retriggered by the TC interrupt. This interrupt is disabled and therefore the tx statemachine never transitions out of SEND. The statemachine is in deadlock now, and the TX_EN remains low, making the interface useless.
imx_uart_stop_tx now checks for incomplete transmission AND whether TC interrupts are enabled before bailing to be retriggered. This makes sure the state machine handling is reached, and is properly set to WAIT_AFTER_SEND.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jun 27, 2024 | Feb 23, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 23, 2024 |
| Suse | — | Upgrade ocfs2-kmp-rtUpgrade cluster-md-kmp-azureUpgrade dtb-exynosUpgrade kernel-symsUpgrade reiserfs-kmp-64kbUpgrade gfs2-kmp-azureUpgrade dtb-apmUpgrade dtb-broadcomUpgrade kernel-azure-optionalUpgrade kernel-azure-develUpgrade gfs2-kmp-rtUpgrade kernel-64kb-optionalUpgrade kselftests-kmp-64kbUpgrade kernel-docs-htmlUpgrade kernel-syms-azureUpgrade dtb-freescaleUpgrade kernel-default-base-rebuildUpgrade kernel-source-azureUpgrade dtb-caviumUpgrade cluster-md-kmp-rtUpgrade kernel-64kb-livepatch-develUpgrade ocfs2-kmp-defaultUpgrade dtb-amazonUpgrade kernel-kvmsmallUpgrade kernel-obs-qaUpgrade kernel-develUpgrade dtb-amlogicUpgrade kernel-kvmsmall-develUpgrade ocfs2-kmp-64kbUpgrade kernel-devel-azureUpgrade dtb-qcomUpgrade dtb-lgUpgrade gfs2-kmp-64kbUpgrade kselftests-kmp-azureUpgrade dlm-kmp-64kbUpgrade kernel-zfcpdumpUpgrade kernel-azure-livepatch-develUpgrade kernel-64kb-develUpgrade kernel-default-vdsoUpgrade dtb-alteraUpgrade kernel-rt_debug-develUpgrade kernel-default-develUpgrade kernel-azure-extraUpgrade kernel-default-extraUpgrade kernel-rt-optionalUpgrade kernel-rt-livepatchUpgrade kernel-sourceUpgrade kernel-rt-develUpgrade kernel-macrosUpgrade dtb-xilinxUpgrade kernel-rtUpgrade kernel-source-rtUpgrade kernel-64kbUpgrade kernel-default-livepatchUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-default-optionalUpgrade reiserfs-kmp-rtUpgrade dlm-kmp-rtUpgrade dtb-hisiliconUpgrade cluster-md-kmp-defaultUpgrade kernel-azureUpgrade dtb-sprdUpgrade kernel-debug-vdsoUpgrade dtb-rockchipUpgrade kernel-devel-rtUpgrade kernel-defaultUpgrade kernel-debug-livepatch-develUpgrade dlm-kmp-defaultUpgrade dtb-armUpgrade dtb-amdUpgrade gfs2-kmp-defaultUpgrade kernel-source-vanillaUpgrade reiserfs-kmp-azureUpgrade kernel-azure-vdsoUpgrade kernel-rt_debug-vdsoUpgrade dtb-appleUpgrade kernel-64kb-extraUpgrade kernel-rt-livepatch-develUpgrade dtb-mediatekUpgrade dtb-marvellUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-azureUpgrade kselftests-kmp-rtUpgrade dtb-socionextUpgrade dtb-renesasUpgrade kernel-default-livepatch-develUpgrade dlm-kmp-azureUpgrade kernel-syms-rtUpgrade kernel-default-baseUpgrade kernel-debug-develUpgrade dtb-nvidiaUpgrade kselftests-kmp-defaultUpgrade kernel-obs-buildUpgrade kernel-debugUpgrade dtb-allwinnerUpgrade cluster-md-kmp-64kbUpgrade kernel-rt-extraUpgrade kernel-rt-vdsoUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt_debugUpgrade kernel-kvmsmall-vdsoUpgrade kernel-docs | Mar 13, 2024 | Feb 23, 2024 |
| Ubuntu | — | Upgrade linux-image-generic-lpaeUpgrade linux-image-oem-22.04Upgrade linux-image-6.5.0-1015-starfiveUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-raspiUpgrade linux-image-starfiveUpgrade linux-image-6.5.0-1021-nvidia-64kUpgrade linux-image-lowlatencyUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.5.0-41-genericUpgrade linux-image-6.5.0-1021-awsUpgrade linux-image-aws-lts-22.04Upgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-20.04dUpgrade linux-image-nvidia-6.5Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-azure-fdeUpgrade linux-image-azure-lts-22.04Upgrade linux-image-kvmUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-6.5.0-1024-oracle-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oem-20.04bUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-azureUpgrade linux-image-nvidiaUpgrade linux-image-6.5.0-1017-laptopUpgrade linux-image-5.15.0-1040-gkeopUpgrade linux-image-5.15.0-1057-awsUpgrade linux-image-oem-20.04cUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-6.5.0-1018-raspiUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-oem-22.04aUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-5.15.0-1048-nvidiaUpgrade linux-image-6.1.0-1035-oemUpgrade linux-image-6.5.0-1024-oracleUpgrade linux-image-6.5.0-1022-azure-fdeUpgrade linux-image-ibmUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.15.0-102-generic-lpaeUpgrade linux-image-5.15.0-1055-oracleUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-azure-cvmUpgrade linux-image-oem-20.04Upgrade linux-image-oracle-64kUpgrade linux-image-6.5.0-1022-gcpUpgrade linux-image-intelUpgrade linux-image-laptop-23.10Upgrade linux-image-nvidia-64k-6.5Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-1048-nvidia-lowlatencyUpgrade linux-image-5.15.0-1050-ibmUpgrade linux-image-awsUpgrade linux-image-5.15.0-1050-raspiUpgrade linux-image-6.5.0-1021-nvidiaUpgrade linux-image-5.15.0-102-genericUpgrade linux-image-virtualUpgrade linux-image-5.15.0-1060-azureUpgrade linux-image-genericUpgrade linux-image-6.5.0-41-lowlatencyUpgrade linux-image-6.5.0-1024-oemUpgrade linux-image-oracleUpgrade linux-image-5.15.0-1054-kvmUpgrade linux-image-5.15.0-102-lowlatencyUpgrade linux-image-5.15.0-1054-gkeUpgrade linux-image-5.15.0-1055-gcpUpgrade linux-image-gkeUpgrade linux-image-6.5.0-41-lowlatency-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-oem-22.04dUpgrade linux-image-gcpUpgrade linux-image-5.15.0-102-generic-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-gkeopUpgrade linux-image-6.5.0-1022-azureUpgrade linux-image-6.5.0-41-generic-64kUpgrade linux-image-5.15.0-1060-azure-fdeUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-102-lowlatency-64kUpgrade linux-image-5.15.0-1052-intel-iotg | Mar 12, 2024 | Feb 23, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Feb 23, 2024 |
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