io_uring: Fix NULL dereference in error in io_sqe_files_register()

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If we hit a "goto out_free;" before the "ctx->file_data" pointer has
been assigned then it leads to a NULL derefence when we call:

	free_fixed_rsrc_data(ctx->file_data);

We can fix this by moving the assignment earlier.

Fixes: 1ad555c6ae ("io_uring: create common fixed_rsrc_data allocation routines")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Dan Carpenter 2021-02-01 15:23:42 +03:00 • committed by Jens Axboe

parent 8b28fdf211

commit 13770a71ed

1 changed files with 1 additions and 1 deletions

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fs/io_uring.c

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