CVE-2026-63883

A flaw was found in the Linux kernel's qcomgeni serial driver. A race condition can occur when the uartflushbuffer function executes before the Direct Memory Access DMA completion interrupt is processed. This timing issue can lead to a kernel First-In, First-Out kfifo buffer underflow...

Linux Distros Unpatched Vulnerability : CVE-2026-63883

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - serial: qcomgeni: fix kfifo underflow when flush precedes DMA completion IRQ When uartflushbuffer runs before the DMA completion IRQ is delivered, the following...

CVE-2026-63883

In the Linux kernel, the following vulnerability has been resolved: serial: qcomgeni: fix kfifo underflow when flush precedes DMA completion IRQ When uartflushbuffer runs before the DMA completion IRQ is delivered, the following race can occur all steps serialized by uartportlock: 1. DMA starts:...

CVE-2026-63883 serial: qcom_geni: fix kfifo underflow when flush precedes DMA completion IRQ

In the Linux kernel, the following vulnerability has been resolved: serial: qcomgeni: fix kfifo underflow when flush precedes DMA completion IRQ When uartflushbuffer runs before the DMA completion IRQ is delivered, the following race can occur all steps serialized by uartportlock: 1. DMA starts:...

CVE-2026-63883

In the Linux kernel, the following vulnerability has been resolved: serial: qcomgeni: fix kfifo underflow when flush precedes DMA completion IRQ When uartflushbuffer runs before the DMA completion IRQ is delivered, the following race can occur all steps serialized by uartportlock: 1. DMA starts:...

EUVD-2026-45768

In the Linux kernel, the following vulnerability has been resolved: serial: qcomgeni: fix kfifo underflow when flush precedes DMA completion IRQ When uartflushbuffer runs before the DMA completion IRQ is delivered, the following race can occur all steps serialized by uartportlock: 1. DMA starts:...

CVE-2026-63883

The CVE relates to the Linux kernel serial driver for Qualcomm GENI: a kfifo underflow race when uart_flush_buffer() runs before the DMA completion IRQ. The race sequence can cause stale DMA data to be submitted due to kfifo_len() being reset to 0 while tx_remaining is nonzero, leading to an inco...

CVE-2026-63883 serial: qcom_geni: fix kfifo underflow when flush precedes DMA completion IRQ

In the Linux kernel, the following vulnerability has been resolved: serial: qcomgeni: fix kfifo underflow when flush precedes DMA completion IRQ When uartflushbuffer runs before the DMA completion IRQ is delivered, the following race can occur all steps serialized by uartportlock: 1. DMA starts:...

PT-2026-61200

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the qcom geni serial driver when uart flush buffer is executed before the DMA completion interrupt request IRQ is delivered. If kfifo reset is called while a D...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: serial: qcom-geni: Fix blocked tasks The changes related to commit 1afa70632c39 “serial: qcom-geni: Enable PM runtime for serial driver” and its dependent commit 86fa39dd6fb7 “serial: qcom-geni: Enable Serial on SA8255p Qualco...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer The driver’s probe allocates memory for the RX FIFO port-rxfifo based on the default RX FIFO depth, such as 16. Later, during serial initialization,...

Siemens SCALANCE and RUGGEDCOM Devices Improper Input Validation (CVE-2024-53158)

soc: qcom: geni-se: array underflow in geniseclktblget This loop is supposed to break if the frequency returned from clkroundrate is the same as on the previous iteration. However, that check doesn't make sense on the first iteration through the loop. It leads to reading before the start of...

Linux Distros Unpatched Vulnerability : CVE-2025-40108

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: Fix blocked task Revert commit 1afa70632c39 serial: qcom-geni: Enable PM...

CVE-2025-40108

In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: Fix blocked task Revert commit 1afa70632c39 "serial: qcom-geni: Enable PM runtime for serial driver" and its dependent commit 86fa39dd6fb7 "serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms" becaus...

EUVD-2025-38442

In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: Fix blocked task Revert commit 1afa70632c39 "serial: qcom-geni: Enable PM runtime for serial driver" and its dependent commit 86fa39dd6fb7 "serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms" becaus...

CVE-2025-40108

In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: Fix blocked task Revert commit 1afa70632c39 "serial: qcom-geni: Enable PM runtime for serial driver" and its dependent commit 86fa39dd6fb7 "serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms" becaus...

UBUNTU-CVE-2025-40108

In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: Fix blocked task Revert commit 1afa70632c39 "serial: qcom-geni: Enable PM runtime for serial driver" and its dependent commit 86fa39dd6fb7 "serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms" becaus...

CVE-2025-40108 serial: qcom-geni: Fix blocked task

In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: Fix blocked task Revert commit 1afa70632c39 "serial: qcom-geni: Enable PM runtime for serial driver" and its dependent commit 86fa39dd6fb7 "serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms" becaus...

CVE-2025-40108 serial: qcom-geni: Fix blocked task

In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: Fix blocked task Revert commit 1afa70632c39 "serial: qcom-geni: Enable PM runtime for serial driver" and its dependent commit 86fa39dd6fb7 "serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms" becaus...

PT-2025-45574

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.17.0-rc1-00004-g53e760d89498 Description The Linux kernel contained an issue within the serial component, specifically related to Qualcomm Geni drivers. A regression was introduced by commits 1afa70632c39 and...