UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
==================================================================
BUG: KCSAN: data-race in rtc_dev_poll / rtc_pie_update_irq

read-write to 0xffff88810326cb80 of 8 bytes by interrupt on cpu 1:
 rtc_handle_legacy_irq drivers/rtc/interface.c:624 [inline]
 rtc_pie_update_irq+0x93/0xf0 drivers/rtc/interface.c:672
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x20f/0x5a0 kernel/time/hrtimer.c:1825
 hrtimer_interrupt+0x21a/0x460 kernel/time/hrtimer.c:1887
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
 __sysvec_apic_timer_interrupt+0x5c/0x1d0 arch/x86/kernel/apic/apic.c:1056
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0x6f/0x80 arch/x86/kernel/apic/apic.c:1050
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
 __rcu_read_unlock+0x56/0x70 kernel/rcu/tree_plugin.h:437
 rcu_read_unlock include/linux/rcupdate.h:873 [inline]
 xa_load+0xb1/0xe0 lib/xarray.c:1621
 memcg_list_lru_allocated mm/list_lru.c:506 [inline]
 memcg_list_lru_alloc+0xb8/0x490 mm/list_lru.c:517
 __memcg_slab_post_alloc_hook+0x1a7/0x580 mm/memcontrol.c:3164
 memcg_slab_post_alloc_hook mm/slub.c:2180 [inline]
 slab_post_alloc_hook mm/slub.c:4158 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 kmem_cache_alloc_lru_noprof+0x229/0x310 mm/slub.c:4216
 sock_alloc_inode+0x34/0xa0 net/socket.c:309
 alloc_inode+0x3d/0x170 fs/inode.c:346
 new_inode_pseudo include/linux/fs.h:3364 [inline]
 sock_alloc net/socket.c:622 [inline]
 __sock_create+0x122/0x5b0 net/socket.c:1505
 sock_create net/socket.c:1599 [inline]
 __sys_socket_create net/socket.c:1636 [inline]
 __sys_socket+0xb0/0x180 net/socket.c:1683
 __do_sys_socket net/socket.c:1697 [inline]
 __se_sys_socket net/socket.c:1695 [inline]
 __x64_sys_socket+0x3f/0x50 net/socket.c:1695
 x64_sys_call+0x285a/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:42
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff88810326cb80 of 8 bytes by task 11761 on cpu 0:
 rtc_dev_poll+0x78/0xb0 drivers/rtc/dev.c:198
 vfs_poll include/linux/poll.h:82 [inline]
 io_file_supports_nowait io_uring/rw.c:46 [inline]
 __io_read+0x2e4/0xc20 io_uring/rw.c:927
 io_read+0x1c/0x60 io_uring/rw.c:1020
 __io_issue_sqe+0xfe/0x2e0 io_uring/io_uring.c:1738
 io_issue_sqe+0x53/0x970 io_uring/io_uring.c:1761
 io_queue_sqe io_uring/io_uring.c:1968 [inline]
 io_req_task_submit+0x6b/0xc0 io_uring/io_uring.c:1380
 io_handle_tw_list+0x18d/0x1c0 io_uring/io_uring.c:1067
 tctx_task_work_run+0x6d/0x1a0 io_uring/io_uring.c:1132
 tctx_task_work+0x3f/0x80 io_uring/io_uring.c:1150
 task_work_run+0x131/0x1a0 kernel/task_work.c:227
 get_signal+0xe13/0xf70 kernel/signal.c:2807
 arch_do_signal_or_restart+0x96/0x480 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x7a/0x100 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x1d6/0x200 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000000000095c0 -> 0x00000000000096c0

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 11761 Comm: syz.0.3288 Not tainted 6.16.0-rc6-syzkaller-00037-ge2291551827f #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
==================================================================