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cuse: fix ioctl
cuse_process_init_reply() doesn't initialize fc->max_pages and thus all
cuse bases ioctls fail with ENOMEM.
Reported-by: Andreas Steinmetz <ast@domdv.de>
Fixes: 5da784cce4
("fuse: add max_pages to init_out")
Cc: <stable@vger.kernel.org> # v4.20
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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1 changed files with 1 additions and 1 deletions
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@ -628,6 +628,7 @@ void fuse_conn_init(struct fuse_conn *fc, struct user_namespace *user_ns)
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get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
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fc->pid_ns = get_pid_ns(task_active_pid_ns(current));
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fc->user_ns = get_user_ns(user_ns);
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fc->max_pages = FUSE_DEFAULT_MAX_PAGES_PER_REQ;
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}
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EXPORT_SYMBOL_GPL(fuse_conn_init);
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@ -1162,7 +1163,6 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
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fc->user_id = d.user_id;
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fc->group_id = d.group_id;
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fc->max_read = max_t(unsigned, 4096, d.max_read);
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fc->max_pages = FUSE_DEFAULT_MAX_PAGES_PER_REQ;
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/* Used by get_root_inode() */
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sb->s_fs_info = fc;
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