On Thu, Aug 27, 2026 at 10:42:25PM -0700, Farhad Alemi wrote:

Hello,

As part of the kernel research at ASU's SEFCOM lab, we hit the crash below. Crash reports can be found here:

https://github.com/farhad-alemi/public_bug_reports/tree/main/165-warning-ode...

ODEBUG: free active (active state 0) object: ffff888014747a70 object type: timer_list hint: gb_operation_timeout+0x0/0x100 drivers/greybus/operation.c:1265 WARNING: lib/debugobjects.c:632 at debug_check_no_obj_freed+0x3fd/0x540 lib/debugobjects.c:1156, CPU#1: kworker/u8:3/10201 Call Trace: kmem_cache_free+0xcb/0x4d0 mm/slub.c:6378 gb_operation_sync_timeout+0x1c7/0x270 drivers/greybus/operation.c:1172 gb_operation_sync include/linux/greybus/operation.h:203 [inline] gb_svc_dme_peer_get+0x10a/0x250 drivers/greybus/svc.c:428 gb_interface_read_and_clear_init_status drivers/greybus/interface.c:380 [inline] gb_interface_enable+0x146/0x900 drivers/greybus/interface.c:1075 gb_module_register_interface drivers/greybus/module.c:162 [inline] gb_module_add+0x1b3/0x3d0 drivers/greybus/module.c:209

Our reproducer.c is available upon request.

Happy to test a patch if that would help.

Again, please send a patch.