Hello, syzbot found the following issue on: HEAD commit: f76349cf4145 Linux 6.0-rc7 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=122d6188880000 kernel config: https://syzkaller.appspot.com/x/.config?x=ba0d23aa7e1ffaf5 dashboard link: https://syzkaller.appspot.com/bug?extid=7379d1edb09dff51e4a6 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7379d1edb09dff51e4a6@xxxxxxxxxxxxxxxxxxxxxxxxx ================================================ WARNING: lock held when returning to user space! 6.0.0-rc7-syzkaller #0 Not tainted ------------------------------------------------ syz-executor.2/11590 is leaving the kernel with locks still held! 2 locks held by syz-executor.2/11590: #0: ffff888073cb60e0 (&type->s_umount_key#64/1){+.+.}-{3:3}, at: alloc_super+0x212/0x920 fs/super.c:228 #1: ffff88802d1df8f0 (&sb->s_type->i_lock_key#40){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] #1: ffff88802d1df8f0 (&sb->s_type->i_lock_key#40){+.+.}-{2:2}, at: _atomic_dec_and_lock+0x9d/0x110 lib/dec_and_lock.c:28 BUG: scheduling while atomic: syz-executor.2/11590/0x00000002 INFO: lockdep is turned off. Modules linked in: Preemption disabled at: [<0000000000000000>] 0x0 Kernel panic - not syncing: scheduling while atomic CPU: 1 PID: 11590 Comm: syz-executor.2 Not tainted 6.0.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 panic+0x2d6/0x715 kernel/panic.c:274 __schedule_bug+0x1ff/0x250 kernel/sched/core.c:5724 schedule_debug+0x1d3/0x3c0 kernel/sched/core.c:5753 __schedule+0xfb/0xdf0 kernel/sched/core.c:6388 schedule+0xcb/0x190 kernel/sched/core.c:6570 exit_to_user_mode_loop+0xe5/0x150 kernel/entry/common.c:157 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:201 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:307 exc_general_protection+0x298/0x430 arch/x86/kernel/traps.c:719 asm_exc_general_protection+0x22/0x30 arch/x86/include/asm/idtentry.h:564 </TASK> Kernel Offset: disabled Rebooting in 86400 seconds.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
