Fix dataraces in PDisk and add VERIFY to prevent out-of-bounds access

[va-kuznecov]

Changelog entry

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Changelog category

• Bugfix

Additional information

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[github-actions]

⚪ 2024-09-26 15:31:17 UTC Pre-commit check linux-x86_64-release-asan for b049944 has started.
⚪ 2024-09-26 15:31:27 UTC Artifacts will be uploaded here
⚪ 2024-09-26 15:34:17 UTC ya make is running...
🟡 2024-09-26 17:53:36 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11027	10807	0	52	45	123

🟢 2024-09-26 17:54:33 UTC Build successful.
🟢 2024-09-26 17:55:09 UTC ydbd size 5.7 GiB changed* by +3.3 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 7d208c7	merge: b049944	diff	diff %
ydbd size	6 084 945 760 Bytes	6 084 949 176 Bytes	+3.3 KiB	+0.000%
ydbd stripped size	1 520 889 744 Bytes	1 520 890 832 Bytes	+1.1 KiB	+0.000%

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

[github-actions]

⚪ 2024-09-26 15:31:17 UTC Pre-commit check linux-x86_64-relwithdebinfo for b049944 has started.
⚪ 2024-09-26 15:31:28 UTC Artifacts will be uploaded here
⚪ 2024-09-26 15:34:28 UTC ya make is running...
🟡 2024-09-26 17:17:56 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
15682	14018	0	9	1615	40

⚪ 2024-09-26 17:19:16 UTC ya make is running... (failed tests rerun, try 2)
🟡 2024-09-26 17:30:35 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
292 (only retried tests)	194	0	2	7	89

⚪ 2024-09-26 17:30:44 UTC ya make is running... (failed tests rerun, try 3)
🟢 2024-09-26 17:42:03 UTC Tests successful.

Test history | Ya make output

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
96 (only retried tests)	7	0	0	0	89

🟢 2024-09-26 17:42:11 UTC Build successful.
🟢 2024-09-26 17:42:56 UTC ydbd size 8.5 GiB changed* by +4.1 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 7d208c7	merge: b049944	diff	diff %
ydbd size	9 081 561 320 Bytes	9 081 565 480 Bytes	+4.1 KiB	+0.000%
ydbd stripped size	490 872 840 Bytes	490 873 224 Bytes	+384 Bytes	+0.000%

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