================================================ [ BUG: lock held when returning to user space! ] 4.9.120-gf85543b #24 Not tainted ------------------------------------------------ syz-executor2/13441 is leaving the kernel with locks still held! 1 lock held by syz-executor2/13441: #0: (&fi->mutex){+.+.+.}, at: [] fuse_lock_inode+0xa2/0xd0 fs/fuse/inode.c:362 loop4: p1 p2 p3 p4 < > EXT4-fs (loop2): VFS: Can't find ext4 filesystem loop4: p1 p2 p3 p4 < > EXT4-fs (loop2): VFS: Can't find ext4 filesystem loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem loop4: p1 p2 p3 p4 < > EXT4-fs (loop2): VFS: Can't find ext4 filesystem loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > 9pnet: p9_fd_create_unix (13747): problem connecting socket: ./file0: -111 9pnet: p9_fd_create_unix (13822): problem connecting socket: ./file0: -111 loop4: p1 p2 p3 p4 < > PM: Marking nosave pages: [mem 0x00000000-0x00000fff] loop4: p1 p2 p3 p4 < > PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfff3000-0xffffffff] PM: Basic memory bitmaps created PM: Basic memory bitmaps freed PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfff3000-0xffffffff] PM: Basic memory bitmaps created PM: Basic memory bitmaps freed EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem loop4: p1 p2 p3 p4 < > EXT4-fs (loop2): VFS: Can't find ext4 filesystem loop4: p1 p2 p3 p4 < > EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > 9pnet: Could not find request transport: xen 9pnet: Could not find request transport: xen loop4: p1 p2 p3 p4 < > loop_reread_partitions: partition scan of loop4 () failed (rc=-16) blk_update_request: 1684 callbacks suppressed blk_update_request: I/O error, dev loop4, sector 301 blk_update_request: I/O error, dev loop4, sector 101 blk_update_request: I/O error, dev loop4, sector 101 buffer_io_error: 1670 callbacks suppressed Buffer I/O error on dev loop4p2, logical block 0, async page read blk_update_request: I/O error, dev loop4, sector 105 Buffer I/O error on dev loop4p2, logical block 1, async page read blk_update_request: I/O error, dev loop4, sector 101 Buffer I/O error on dev loop4p2, logical block 0, async page read blk_update_request: I/O error, dev loop4, sector 105 Buffer I/O error on dev loop4p2, logical block 1, async page read blk_update_request: I/O error, dev loop4, sector 101 Buffer I/O error on dev loop4p2, logical block 0, async page read blk_update_request: I/O error, dev loop4, sector 105 Buffer I/O error on dev loop4p2, logical block 1, async page read blk_update_request: I/O error, dev loop4, sector 101 Buffer I/O error on dev loop4p2, logical block 0, async page read blk_update_request: I/O error, dev loop4, sector 105 Buffer I/O error on dev loop4p2, logical block 1, async page read Buffer I/O error on dev loop4p2, logical block 0, async page read Buffer I/O error on dev loop4p2, logical block 1, async page read loop_reread_partitions: partition scan of loop4 () failed (rc=-16) loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < > loop4: p1 p2 p3 p4 < >