================================================================== BUG: KASAN: vmalloc-out-of-bounds in notifier_chain_unregister kernel/notifier.c:51 [inline] BUG: KASAN: vmalloc-out-of-bounds in blocking_notifier_chain_unregister+0x230/0x290 kernel/notifier.c:329 Read of size 8 at addr ffffc900039cbbe8 by task syz-executor283/3606 CPU: 0 PID: 3606 Comm: syz-executor283 Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:317 [inline] print_report.cold+0x59/0x719 mm/kasan/report.c:433 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495 notifier_chain_unregister kernel/notifier.c:51 [inline] blocking_notifier_chain_unregister+0x230/0x290 kernel/notifier.c:329 hci_unregister_suspend_notifier+0x73/0x90 net/bluetooth/hci_core.c:2760 hci_unregister_dev+0x16f/0x4e0 net/bluetooth/hci_core.c:2678 vhci_release+0x7c/0xf0 drivers/bluetooth/hci_vhci.c:568 __fput+0x277/0x9d0 fs/file_table.c:320 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xad5/0x29b0 kernel/exit.c:795 do_group_exit+0xd2/0x2f0 kernel/exit.c:925 __do_sys_exit_group kernel/exit.c:936 [inline] __se_sys_exit_group kernel/exit.c:934 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:934 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5d1c8203d9 Code: Unable to access opcode bytes at RIP 0x7f5d1c8203af. RSP: 002b:00007ffcc7fd3928 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f5d1c8a4450 RCX: 00007f5d1c8203d9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffffb8 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d1c8a4450 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 Memory state around the buggy address: ffffc900039cba80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900039cbb00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc900039cbb80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc900039cbc00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900039cbc80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ==================================================================