CVE-2026-74276 spi: xilinx: use FIFO occupancy register to determine buffer size

🗓️ 15 Aug 2026 05:57:48Reported by GoogleType

osv_cve🔗 osv.dev👁 38 Views

Xilinx SPI driver miscalculates FIFO size by one, causing RX FIFO overflow and deadlock in IRQ mode.

Reporter	Title	Published	Views	Family All 60
AstraLinux	Astra Linux – vulnerability in linux-5.10, linux-6.1, linux-5.15	15 Oct 202615:53	–	astralinux
BDU FSTEC	Linux kernel Heap Buffer Overflow DoS	16 Oct 202600:00	–	bdu_fstec
CVE	CVE-2026-74276	15 Aug 202605:57	–	cve
Cvelist	CVE-2026-74276 spi: xilinx: use FIFO occupancy register to determine buffer size	15 Aug 202605:57	–	cvelist
Debian CVE	CVE-2026-74276	15 Aug 202605:57	–	debiancve
EUVD	EUVD-2026-59423	15 Aug 202605:57	–	euvd
NVD	CVE-2026-74276	15 Aug 202606:22	–	nvd
osv_bell	BELL-CVE-2026-74276	18 Aug 202606:06	–	osv_bell
osv_debian	DEBIAN-CVE-2026-74276	15 Aug 202606:22	–	osv_debian
osv_suse	SUSE-SU-2026:4687-1 Security update for the Linux Kernel	15 Oct 202612:38	–	osv_suse

Source	Link
git	www.git.kernel.org/stable/c/1c9246a199e19b2fd36e94feed60e55f27103a4f
git	www.git.kernel.org/stable/c/1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273
git	www.git.kernel.org/stable/c/47f3b5365536e8c38f264824ab15fdb74454e066
git	www.git.kernel.org/stable/c/4ee65558a7fda463222f5edc631b6d7862218725
git	www.git.kernel.org/stable/c/d1944b71c18e7494756bff1a6f80c25be99eaecb
git	www.git.kernel.org/stable/c/d7ccd8736b67550eca746ed7fa39a36016ff114b
git	www.git.kernel.org/stable/c/dfab0d4698a642bab9b895e2e6d240838cfe2cc6
git	www.git.kernel.org/stable/c/e98f589d54068dfcc7da42d9b730e47b84e2991a
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74276.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-74276

16 Oct 2026 10:42Current

6.1Medium risk

Vulners AI Score6.1

EPSS0.00177

xilinx_spi FIFO overflow RX FIFO deadlock buffer size TX FIFO IRQ mode