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CVE-2025-38005

Description

In the Linux kernel, the following vulnerability has been resolved:dmaengine: ti: k3-udma: Add missing lockingRecent kernels complain about a missing lock in k3-udma.c when the lockvalidator is enabled:[ 4.128073] WARNING: CPU: 0 PID: 746 at drivers/dma/ti/../virt-dma.h:169 udma_start.isra.0+0x34/0x238[ 4.137352] CPU: 0 UID: 0 PID: 746 Comm: kworker/0:3 Not tainted 6.12.9-arm64 #28[ 4.144867] Hardware name: pp-v12 (DT)[ 4.148648] Workqueue: events udma_check_tx_completion[ 4.153841] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)[ 4.160834] pc : udma_start.isra.0+0x34/0x238[ 4.165227] lr : udma_start.isra.0+0x30/0x238[ 4.169618] sp : ffffffc083cabcf0[ 4.172963] x29: ffffffc083cabcf0 x28: 0000000000000000 x27: ffffff800001b005[ 4.180167] x26: ffffffc0812f0000 x25: 0000000000000000 x24: 0000000000000000[ 4.187370] x23: 0000000000000001 x22: 00000000e21eabe9 x21: ffffff8000fa0670[ 4.194571] x20: ffffff8001b6bf00 x19: ffffff8000fa0430 x18: ffffffc083b95030[ 4.201773] x17: 0000000000000000 x16: 00000000f0000000 x15: 0000000000000048[ 4.208976] x14: 0000000000000048 x13: 0000000000000000 x12: 0000000000000001[ 4.216179] x11: ffffffc08151a240 x10: 0000000000003ea1 x9 : ffffffc08046ab68[ 4.223381] x8 : ffffffc083cabac0 x7 : ffffffc081df3718 x6 : 0000000000029fc8[ 4.230583] x5 : ffffffc0817ee6d8 x4 : 0000000000000bc0 x3 : 0000000000000000[ 4.237784] x2 : 0000000000000000 x1 : 00000000001fffff x0 : 0000000000000000[ 4.244986] Call trace:[ 4.247463] udma_start.isra.0+0x34/0x238[ 4.251509] udma_check_tx_completion+0xd0/0xdc[ 4.256076] process_one_work+0x244/0x3fc[ 4.260129] process_scheduled_works+0x6c/0x74[ 4.264610] worker_thread+0x150/0x1dc[ 4.268398] kthread+0xd8/0xe8[ 4.271492] ret_from_fork+0x10/0x20[ 4.275107] irq event stamp: 220[ 4.278363] hardirqs last enabled at (219): [] _raw_spin_unlock_irq+0x38/0x50[ 4.287183] hardirqs last disabled at (220): [] el1_dbg+0x24/0x50[ 4.294879] softirqs last enabled at (182): [] handle_softirqs+0x1c0/0x3cc[ 4.303437] softirqs last disabled at (177): [] __do_softirq+0x1c/0x28[ 4.311559] ---[ end trace 0000000000000000 ]---This commit adds the missing locking.

POC

Reference

No PoCs from references.

Github

- https://github.com/w4zu/Debian_security