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lib: _free_value() fix#4123

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OverOrion merged 1 commit intosyslog-ng:masterfrom
OverOrion:persist_state_null_ptr
Sep 2, 2022
Merged

lib: _free_value() fix#4123
OverOrion merged 1 commit intosyslog-ng:masterfrom
OverOrion:persist_state_null_ptr

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@OverOrion
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As _map_header_of_entry_from_handle() may fail, the return value
should be checked.

It could cause a crash, if the the handle or the entry was corrupted.

Signed-off-by: Szilárd Parrag [email protected]

As `_map_header_of_entry_from_handle()` may fail, the return value
should be checked.

Signed-off-by: Szilárd Parrag <[email protected]>
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@OverOrion OverOrion marked this pull request as draft August 30, 2022 08:25
@kira-syslogng
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Build FAILURE

@OverOrion
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@kira-syslogng retest this please;

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bazsi commented Sep 1, 2022

Is there an actual occurrence of this bug? How was this found? Otherwise this looks good to me.

@OverOrion OverOrion marked this pull request as ready for review September 2, 2022 14:18
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We've had a crash report, and we found it during the investigation.

(The reason why I opened it as draft was because I wanted to find code paths like this (e.g, the return value of a function that may fail is used without checks), but some of them are not that straightforward to validate, so I will merge this PR, and open a separate one for those.)

@OverOrion OverOrion merged commit 1b1d42d into syslog-ng:master Sep 2, 2022
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3 participants