Hello, syzbot found the following issue on: HEAD commit: d2af0fa4bfa4 Add linux-next specific files for 20230220 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=170d2ef0c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=594e1a56901fd35d dashboard link: https://syzkaller.appspot.com/bug?extid=2bcc0d79e548c4f62a59 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1227e837480000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=122d8ca0c80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/83b78c113e8e/disk-d2af0fa4.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d59f9b2c9091/vmlinux-d2af0fa4.xz kernel image: https://storage.googleapis.com/syzbot-assets/2726c16c1d3b/bzImage-d2af0fa4.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2bcc0d79e548c4f62a59@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5080 at block/bdev.c:845 blkdev_put+0x6ca/0x770 block/bdev.c:845 Modules linked in: CPU: 1 PID: 5080 Comm: syz-executor158 Not tainted 6.2.0-rc8-next-20230220-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:blkdev_put+0x6ca/0x770 block/bdev.c:845 Code: 48 8b 3c 24 e8 b7 7c da fd e9 99 fa ff ff e8 8d 7c da fd e9 cf fb ff ff 4c 89 ff e8 80 7c da fd e9 80 fd ff ff e8 e6 ea 88 fd <0f> 0b e9 ef fc ff ff e8 8a 7c da fd e9 f3 fa ff ff 48 8b 3c 24 e8 RSP: 0018:ffffc90003cefc88 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888144c49600 RCX: 0000000000000000 RDX: ffff88807c2f8000 RSI: ffffffff83fbb8da RDI: 0000000000000005 RBP: ffff888146bc0000 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000000 R12: 00000000484e009f R13: ffff888144c49628 R14: ffff888146bc0460 R15: ffff888144c49ab8 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb645428948 CR3: 000000000c571000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> blkdev_close+0x68/0x80 block/fops.c:507 __fput+0x27c/0xa90 fs/file_table.c:321 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xb42/0x2b60 kernel/exit.c:869 do_group_exit+0xd4/0x2a0 kernel/exit.c:1019 __do_sys_exit_group kernel/exit.c:1030 [inline] __se_sys_exit_group kernel/exit.c:1028 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1028 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb6453e4639 Code: Unable to access opcode bytes at 0x7fb6453e460f. RSP: 002b:00007ffcfacb3ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fb645458270 RCX: 00007fb6453e4639 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb645458270 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 </TASK> --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
