CVE-2026-74653 serial: 8250_of: clear stuck empty-FIFO RX-timeout on LPC32xx

In the Linux kernel, the following vulnerability has been resolved: serial: 8250of: clear stuck empty-FIFO RX-timeout on LPC32xx The NXP LPC32xx UART PORTLPC3220 can latch an RX character-timeout interrupt while the RX FIFO is empty: IIR reports UARTIIRRXTIMEOUT 0x0c but LSR.DR is clear. A...

EUVD-2026-64590

In the Linux kernel, the following vulnerability has been resolved: serial: 8250of: clear stuck empty-FIFO RX-timeout on LPC32xx The NXP LPC32xx UART PORTLPC3220 can latch an RX character-timeout interrupt while the RX FIFO is empty: IIR reports UARTIIRRXTIMEOUT 0x0c but LSR.DR is clear. A...

CVE-2026-74652 serial: amba-pl011: cancel RS485 hrtimers after freeing IRQ

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: cancel RS485 hrtimers after freeing IRQ The RS485 trigger hrtimers are embedded in the devm-managed port and can fire after it is freed. The IRQ handler can arm a timer, so free the IRQ first and then cancel...

CVE-2026-74655: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: fix TX DMA buffer flush When transmit flushing a qcom-geni UART during an ongoing TX DMA, the UART gets stuck infinitely repeating corrupted TX DMA frames. The DMA-mode uartops does not provide a flushbuffer...

Linux Distros Unpatched Vulnerability : CVE-2026-74655

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - serial: qcom-geni: fix TX DMA buffer flush When transmit flushing a qcom-geni UART during an ongoing TX DMA, the UART gets stuck infinitely repeating corrupted ...

PT-2026-79658

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the NXP LPC32xx UART PORT LPC3220 where an RX character-timeout interrupt can be latched while the RX FIFO is empty. In this state, the Interrupt Identification Regist...

PT-2026-79660

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the qcom-geni UART driver where flushing the transmit buffer during an ongoing TX DMA Direct Memory Access causes the UART to infinitely repeat corrupted TX DMA frames...

EUVD-2026-61175

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendorstandalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call netbuflinearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then write...

CVE-2026-12520 Stack buffer overflow and off-by-one writes in Zephyr HL7800 modem AT response handlers

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendorstandalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call netbuflinearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then write...

CVE-2026-12520 Stack buffer overflow and off-by-one writes in Zephyr HL7800 modem AT response handlers

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendorstandalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call netbuflinearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then write...

Linux Distros Unpatched Vulnerability : CVE-2026-74303

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: hciqca: fix NULL pointer dereference in qcadmphdr for non-serdev device hu-serdev is NULL for hciuart attached via non-serdev paths, but qcadmphdr...

PT-2026-77289

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendor standalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call net buf linearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then writ...

CVE-2026-12520: Out-of-bounds Write

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendorstandalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call netbuflinearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then write...

CVE-2026-12629

The ARM PL011 UART driver in drivers/serial/uartpl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011IMSCERRORMASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the R...

CVE-2026-12629 PL011 UART error interrupts never cleared, enabling an external-peer interrupt-storm denial of service

The ARM PL011 UART driver in drivers/serial/uartpl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011IMSCERRORMASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the R...

EUVD-2026-60266

The ARM PL011 UART driver in drivers/serial/uartpl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011IMSCERRORMASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the R...

CVE-2026-12629

The Zephyr RTOS ARM PL011 UART driver's pl011_isr() only cleared CTS interrupts, never writing UARTICR for error bits. An attacker controlling a serial peer can inject line errors to trigger a permanent interrupt-storm livelock (availability DoS), CVSS 4.6 (MEDIUM). Fix commit: https://github.com...

CVE-2026-12629

The ARM PL011 UART driver in drivers/serial/uartpl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011IMSCERRORMASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the R...

CVE-2026-12629 PL011 UART error interrupts never cleared, enabling an external-peer interrupt-storm denial of service

The ARM PL011 UART driver in drivers/serial/uartpl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011IMSCERRORMASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the R...

PT-2026-76711

The ARM PL011 UART driver in drivers/serial/uart pl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011 IMSC ERROR MASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears t...