mariadb/mysql-test/suite/encryption/t/tempfiles_encrypted.opt at bb-10.11-bar-MDEV-35427 - mirror/mariadb - May the force be without you: git.fucktheforce.de

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Varun Gupta b94e8e4b25 MDEV-23867: insert... select crash in compute_window_func

There are 2 issues here:

Issue #1: memory allocation.
An IO_CACHE that uses encryption uses a larger buffer (it needs space for the encrypted data,
decrypted data, IO_CACHE_CRYPT struct to describe encryption parameters etc).

Issue #2: IO_CACHE::seek_not_done
When IO_CACHE objects are cloned, they still share the file descriptor.
This means, operation on one IO_CACHE may change the file read position
which will confuse other IO_CACHEs using it.

The fix of these issues would be:
Allocate the buffer to also include the extra size needed for encryption.
Perform seek again after one IO_CACHE reads the file.

2020-10-23 22:36:47 +05:30

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--encrypt-tmp_files=ON