Double free when accessing .AsBoxed() on Pod with 0 refcount (#7659)

[spuchin]

Changelog entry

...

Changelog category

• New feature
• Experimental feature
• Improvement
• Performance improvement
• Bugfix
• Backward incompatible change
• Documentation (changelog entry is not required)
• Not for changelog (changelog entry is not required)

Additional information

...

[github-actions]

⚪ 2024-08-13 12:21:42 UTC Pre-commit check for d88b56f has started.
⚪ 2024-08-13 12:25:06 UTC Build linux-x86_64-release-asan is running...

[github-actions]

⚪ 2024-08-13 12:27:06 UTC Pre-commit check for d88b56f has started.
⚪ 2024-08-13 12:29:59 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-08-13 13:04:02 UTC Build successful.

[github-actions]

⚪ 2024-08-13 12:36:35 UTC Pre-commit check for d88b56f has started.
⚪ 2024-08-13 12:40:04 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-08-13 13:35:24 UTC Build successful.
⚪ 2024-08-13 13:35:39 UTC Tests are running...
🔴 2024-08-13 15:53:16 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
76506	63067	0	6	13421	12

🟢 2024-08-13 15:53:58 UTC ydbd size 8.1 GiB changed* by +44.1 KiB, which is < 100.0 KiB vs stable-24-3: OK

ydbd size dash	stable-24-3: c85f845	merge: d88b56f	diff	diff %
ydbd size	8 723 859 432 Bytes	8 723 904 552 Bytes	+44.1 KiB	+0.001%
ydbd stripped size	476 908 936 Bytes	476 915 336 Bytes	+6.2 KiB	+0.001%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}