{"uuid": "eda32767-1ed9-40ac-923c-d0ec1a158f1e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-21684", "type": "seen", "source": "https://t.me/cvedetector/17547", "content": "{\n  \"Source\": \"CVE FEED\",\n  \"Title\": \"CVE-2025-21684 - Xilinx GPIO Lock Violation Vulnerability\", \n  \"Content\": \"CVE ID : CVE-2025-21684 \nPublished : Feb. 9, 2025, 12:15 p.m. | 22\u00a0minutes ago \nDescription : In the Linux kernel, the following vulnerability has been resolved:  \n  \ngpio: xilinx: Convert gpio_lock to raw spinlock  \n  \nirq_chip functions may be called in raw spinlock context. Therefore, we  \nmust also use a raw spinlock for our own internal locking.  \n  \nThis fixes the following lockdep splat:  \n  \n[    5.349336] =============================  \n[    5.353349] [ BUG: Invalid wait context ]  \n[    5.357361] 6.13.0-rc5+ #69 Tainted: G        W  \n[    5.363031] -----------------------------  \n[    5.367045] kworker/u17:1/44 is trying to lock:  \n[    5.371587] ffffff88018b02c0 (&chip->gpio_lock){....}-{3:3}, at: xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))  \n[    5.380079] other info that might help us debug this:  \n[    5.385138] context-{5:5}  \n[    5.387762] 5 locks held by kworker/u17:1/44:  \n[    5.392123] #0: ffffff8800014958 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3204)  \n[    5.402260] #1: ffffffc082fcbdd8 (deferred_probe_work){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3205)  \n[    5.411528] #2: ffffff880172c900 (&dev->mutex){....}-{4:4}, at: __device_attach (drivers/base/dd.c:1006)  \n[    5.419929] #3: ffffff88039c8268 (request_class#2){+.+.}-{4:4}, at: __setup_irq (kernel/irq/internals.h:156 kernel/irq/manage.c:1596)  \n[    5.428331] #4: ffffff88039c80c8 (lock_class#2){....}-{2:2}, at: __setup_irq (kernel/irq/manage.c:1614)  \n[    5.436472] stack backtrace:  \n[    5.439359] CPU: 2 UID: 0 PID: 44 Comm: kworker/u17:1 Tainted: G        W          6.13.0-rc5+ #69  \n[    5.448690] Tainted: [W]=WARN  \n[    5.451656] Hardware name: xlnx,zynqmp (DT)  \n[    5.455845] Workqueue: events_unbound deferred_probe_work_func  \n[    5.461699] Call trace:  \n[    5.464147] show_stack+0x18/0x24 C  \n[    5.467821] dump_stack_lvl (lib/dump_stack.c:123)  \n[    5.471501] dump_stack (lib/dump_stack.c:130)  \n[    5.474824] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)  \n[    5.478758] lock_acquire (arch/arm64/include/asm/percpu.h:40 kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851 kernel/locking/lockdep.c:5814)  \n[    5.482429] _raw_spin_lock_irqsave (include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)  \n[    5.486797] xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))  \n[    5.490737] irq_enable (kernel/irq/internals.h:236 kernel/irq/chip.c:170 kernel/irq/chip.c:439 kernel/irq/chip.c:432 kernel/irq/chip.c:345)  \n[    5.494060] __irq_startup (kernel/irq/internals.h:241 kernel/irq/chip.c:180 kernel/irq/chip.c:250)  \n[    5.497645] irq_startup (kernel/irq/chip.c:270)  \n[    5.501143] __setup_irq (kernel/irq/manage.c:1807)  \n[    5.504728] request_threaded_irq (kernel/irq/manage.c:2208) \nSeverity: 0.0 | NA \nVisit the link for more details, such as CVSS details, affected products, timeline, and more...\",\n  \"Detection Date\": \"09 Feb 2025\",\n  \"Type\": \"Vulnerability\"\n}\n\ud83d\udd39 t.me/cvedetector \ud83d\udd39", "creation_timestamp": "2025-02-09T14:19:35.000000Z"}