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Bug #5349

closed

verify that block pointer is plausible before reading

Added by Matthew Ahrens over 7 years ago. Updated over 7 years ago.

Status:
Closed
Priority:
Normal
Category:
zfs - Zettabyte File System
Start date:
2014-11-15
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:

Description

We want to verify that the block pointer is structurally valid, before
attempting to read it in. It can only be invalid in the case of a ZFS bug, but
this change will help identify such bugs in a more transparent way, by
panic'ing with a relevant message, rather than indexing off the end of an array
or something.

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