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b9ec4a15e5
The block pointer verification check in arc_read() should also cover embedded block pointers. While highly unlikely, accessing a damaged block pointer can result in panic. To further harden the code extend the existing check to include embedded block pointers and add a comment explaining the rational for this sanity check. Lastly, correct a flaw in zfs_blkptr_verify() so the error count is checked even when checking a untrusted config to verify the non-pool-specific portions of a block pointer. Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #12535 |
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