Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma: Add missing locking Recent kernels complain about a missing lock in k3-udma.c when the lock validator 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): [<ffffffc080a27c7c>] _raw_spin_unlock_irq+0x38/0x50 [ 4.287183] hardirqs last disabled at (220): [<ffffffc080a1c154>] el1_dbg+0x24/0x50 [ 4.294879] softirqs last enabled at (182): [<ffffffc080037e68>] handle_softirqs+0x1c0/0x3cc [ 4.303437] softirqs last disabled at (177): [<ffffffc080010170>] __do_softirq+0x1c/0x28 [ 4.311559] ---[ end trace 0000000000000000 ]--- This commit adds the missing locking.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 to < 27e71fa08711e09d81e06a54007b362a5426fd22affected25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 to < 0ea0433f822ed0549715f7044c9cd1cf132ff7faaffected25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 to < df5987e76a4ae4cbd705d81ab4b15ed232250a4aaffected25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 to < d87f1cddc592387359fde157cc4296556f6403c2affected25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 to < 26e63b2fe30c61bd25981c6084f67a8af79945d0affected25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 to < 99df1edf17493cb49a8c01f6bde55c3abb6a2a6caffected25dcb5dd7b7ce5587c1df18f584ff78f51a68a94 to < fca280992af8c2fbd511bc43f65abb4a17363f2faffected
Linux Linux
Default version status: affected
5.6affected0 to < 5.6unaffected5.10.238 to ≤ 5.10.*unaffected5.15.184 to ≤ 5.15.*unaffected6.1.140 to ≤ 6.1.*unaffected6.6.92 to ≤ 6.6.*unaffected6.12.30 to ≤ 6.12.*unaffected6.14.8 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/27e71fa08711e09d81e06a54007b362a5426fd22 ↗
- https://git.kernel.org/stable/c/0ea0433f822ed0549715f7044c9cd1cf132ff7fa ↗
- https://git.kernel.org/stable/c/df5987e76a4ae4cbd705d81ab4b15ed232250a4a ↗
- https://git.kernel.org/stable/c/d87f1cddc592387359fde157cc4296556f6403c2 ↗
- https://git.kernel.org/stable/c/26e63b2fe30c61bd25981c6084f67a8af79945d0 ↗
- https://git.kernel.org/stable/c/99df1edf17493cb49a8c01f6bde55c3abb6a2a6c ↗
- https://git.kernel.org/stable/c/fca280992af8c2fbd511bc43f65abb4a17363f2f ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html ↗