[MDEV-16518] MYSQL57_GENERATED_FIELD: The code in TABLE_SHARE::init_from_binary_frm_image() is not safe - Jira

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Details

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 10.2(EOL), 10.3(EOL), 10.4(EOL)
Fix Version/s: 10.2.24, 10.3.15, 10.4.5
Component/s: Virtual Columns
Labels:
None

Description

This problem is similar to ~~MDEV-15834~~, but for a 10.2 specific code in the code branch for MYSQL57_GENERATED_FIELD:

vcol_info_length= uint2korr(vcol_screen_pos + 1);

...

DBUG_ASSERT(vcol_info_length);

...

vcol_screen_pos+= vcol_info_length + MYSQL57_GCOL_HEADER_SIZE;

In case of a broke FRM file, this can crash in the debug build or behave unpredictably in a release build.

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mdev16518.frm
8 kB
2019-04-26 09:42

Issue Links

relates to

MDEV-15834 The code in TABLE_SHARE::init_from_binary_frm_image() is not safe

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Assignee:: Alexander Barkov

Reporter:: Alexander Barkov

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 2018-06-19 06:35

Updated:: 2019-04-26 10:02

Resolved:: 2019-04-26 10:02

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