• Takeshi Misawa's avatar
    fuse: Fix memory leak in fuse_dev_free() · d72f70da
    Takeshi Misawa authored
    When ntfs is unmounted, the following leak is
    reported by kmemleak.
    kmemleak report:
    unreferenced object 0xffff880052bf4400 (size 4096):
      comm "mount.ntfs", pid 16530, jiffies 4294861127 (age 3215.836s)
      hex dump (first 32 bytes):
        00 44 bf 52 00 88 ff ff 00 44 bf 52 00 88 ff ff  .D.R.....D.R....
        10 44 bf 52 00 88 ff ff 10 44 bf 52 00 88 ff ff  .D.R.....D.R....
        [<00000000bf4a2f8d>] fuse_fill_super+0xb22/0x1da0 [fuse]
        [<000000004dde0f0c>] mount_bdev+0x263/0x320
        [<0000000025aebc66>] mount_fs+0x82/0x2bf
        [<0000000042c5a6be>] vfs_kern_mount.part.33+0xbf/0x480
        [<00000000ed10cd5b>] do_mount+0x3de/0x2ad0
        [<00000000d59ff068>] ksys_mount+0xba/0xd0
        [<000000001bda1bcc>] __x64_sys_mount+0xba/0x150
        [<00000000ebe26304>] do_syscall_64+0x151/0x490
        [<00000000d25f2b42>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
        [<000000002e0abd2c>] 0xffffffffffffffff
    fuse_dev_alloc() allocate fud->pq.processing.
    But this hash table is not freed.
    Fix this by freeing fud->pq.processing.
    Signed-off-by: default avatarTakeshi Misawa <jeliantsurux@gmail.com>
    Signed-off-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
    Fixes: be2ff42c ("fuse: Use hash table to link processing request")
inode.c 33.5 KB