RSP: 002b:00007feed796ca88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007feed796cb40 RCX: 000000000045bf6a RDX: 00007feed796cae0 RSI: 0000000020000100 RDI: 00007feed796cb00 RBP: 0000000000000001 R08: 00007feed796cb40 R09: 00007feed796cae0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004 R13: 00000000004c83f3 R14: 00000000004def18 R15: 0000000000000003 ------------[ cut here ]------------ kernel BUG at fs/btrfs/volumes.c:1270! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7198 Comm: syz-executor.4 Not tainted 5.2.0-rc6+ #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:btrfs_close_one_device fs/btrfs/volumes.c:1270 [inline] RIP: 0010:close_fs_devices.part.0+0x5b9/0x790 fs/btrfs/volumes.c:1295 Code: 3c 03 0f 8e 44 01 00 00 48 8b 45 c0 c7 80 20 01 00 00 00 00 00 00 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 87 28 c4 fe <0f> 0b e8 80 28 c4 fe 0f 0b e8 79 28 c4 fe 0f 0b e9 16 ff ff ff e8 RSP: 0018:ffff888060fc77a0 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88808c74f5c0 RCX: ffffc9000e645000 RDX: 0000000000040000 RSI: ffffffff82ac98a9 RDI: 0000000000000007 RBP: ffff888060fc7810 R08: ffff88808cfe8180 R09: ffff88808cfe8a48 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88808b6d5680 R15: fffffffffffffff4 FS: 00007feed796d700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555573e5978 CR3: 000000005eea5000 CR4: 00000000001406e0 Call Trace: close_fs_devices fs/btrfs/volumes.c:1327 [inline] btrfs_close_devices+0xa0/0x200 fs/btrfs/volumes.c:1313 btrfs_mount_root+0xf0c/0x1220 fs/btrfs/super.c:1569 legacy_get_tree+0x108/0x220 fs/fs_context.c:661 vfs_get_tree+0x8e/0x390 fs/super.c:1476 fc_mount+0x17/0xc0 fs/namespace.c:983 vfs_kern_mount.part.0+0xd8/0xf0 fs/namespace.c:1013 vfs_kern_mount+0x40/0x60 fs/namespace.c:1000 btrfs_mount+0x2b4/0x15e2 fs/btrfs/super.c:1620 legacy_get_tree+0x108/0x220 fs/fs_context.c:661 vfs_get_tree+0x8e/0x390 fs/super.c:1476 do_new_mount fs/namespace.c:2791 [inline] do_mount+0x138c/0x1c00 fs/namespace.c:3111 ksys_mount+0xdb/0x150 fs/namespace.c:3320 __do_sys_mount fs/namespace.c:3334 [inline] __se_sys_mount fs/namespace.c:3331 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3331 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45bf6a Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 9d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 7a 8d fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007feed796ca88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007feed796cb40 RCX: 000000000045bf6a RDX: 00007feed796cae0 RSI: 0000000020000100 RDI: 00007feed796cb00 RBP: 0000000000000001 R08: 00007feed796cb40 R09: 00007feed796cae0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004 R13: 00000000004c83f3 R14: 00000000004def18 R15: 0000000000000003 Modules linked in: ---[ end trace baa97309a2846bc3 ]--- RIP: 0010:btrfs_close_one_device fs/btrfs/volumes.c:1270 [inline] RIP: 0010:close_fs_devices.part.0+0x5b9/0x790 fs/btrfs/volumes.c:1295 Code: 3c 03 0f 8e 44 01 00 00 48 8b 45 c0 c7 80 20 01 00 00 00 00 00 00 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 87 28 c4 fe <0f> 0b e8 80 28 c4 fe 0f 0b e8 79 28 c4 fe 0f 0b e9 16 ff ff ff e8 RSP: 0018:ffff888060fc77a0 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88808c74f5c0 RCX: ffffc9000e645000 RDX: 0000000000040000 RSI: ffffffff82ac98a9 RDI: 0000000000000007 RBP: ffff888060fc7810 R08: ffff88808cfe8180 R09: ffff88808cfe8a48 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88808b6d5680 R15: fffffffffffffff4 FS: 00007feed796d700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f494c3d8848 CR3: 000000005eea5000 CR4: 00000000001406e0