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Type: Bug
Resolution: Fixed
Priority: P2
Fix Version/s: 17
Affects Version/s: 11, 16, 17
Component/s: hotspot
Labels:

Subcomponent:
compiler
Resolved In Build:
b11
CPU:

ppc

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8262253	16.0.2	Martin Doerr	P2	Resolved	Fixed	b01
JDK-8262171	16.0.1	Martin Doerr	P2	Closed	Fixed	b06
JDK-8262021	11.0.11	Martin Doerr	P2	Resolved	Fixed	b04

The stubs for aescrypt_encryptBlock / aescrypt_decryptBlock use a read-modify-write implementation to store the 16 Byte result to an unaligned address. Depending on alignment, we may read and write Bytes beyond the array. This is not safe because these Bytes can belong to another object in the Java heap which can get modified concurrently.
VM may crash: ~~JDK-8253927~~

backported by

JDK-8262021 [PPC64] AES intrinsics write beyond the destination array

Resolved

JDK-8262253 [PPC64] AES intrinsics write beyond the destination array

Resolved

JDK-8262171 [PPC64] AES intrinsics write beyond the destination array

Closed

duplicates

JDK-8253927 guarantee(object->mark() == markWord::INFLATING()) failed: invariant

Closed

relates to

JDK-8152172 PPC64: Support AES intrinsics

Resolved

links to

Commit openjdk/jdk16u/c000594e

Commit openjdk/jdk/05d59556

Review openjdk/jdk16u/40

Review openjdk/jdk/2514

(4 links to)

Assignee:: Martin Doerr

Reporter:: Martin Doerr

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Created:: 2021-02-10 08:31

Updated:: 2025-01-16 12:11

Resolved:: 2021-02-17 02:27

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