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Thu, 18 Jun 2026 09:38:16 +0000 Content-Type: multipart/mixed; boundary="===============8699789381195472872==" MIME-Version: 1.0 From: Tatsuo Ishii To: pgpool-committers@lists.postgresql.org Subject: pgpool: Fix use-after-free of query context after a backend node shutdo X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Thu, 18 Jun 2026 09:38:16 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============8699789381195472872== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Rml4IHVzZS1hZnRlci1mcmVlIG9mIHF1ZXJ5IGNvbnRleHQgYWZ0ZXIgYSBiYWNrZW5kIG5vZGUg c2h1dGRvd24uCgpBIFBPT0xfUVVFUllfQ09OVEVYVCBpcyByZWZlcmVuY2VkIGZyb20gdGhlIHNl c3Npb24gc2NvcGVkIHNlbnQKbWVzc2FnZSBsaXN0IChzZXNzaW9uX2NvbnRleHQtPm1lc3NhZ2Vf bGlzdCkgYW5kIHBlbmRpbmcgbWVzc2FnZSBsaXN0LAp3aGljaCBsaXZlIGluIHNlc3Npb25fY29u dGV4dC0+bWVtb3J5X2NvbnRleHQgYW5kIHN1cnZpdmUgZm9yIHRoZQp3aG9sZSBjbGllbnQgc2Vz c2lvbi4gIEhvd2V2ZXIgcG9vbF9pbml0X3F1ZXJ5X2NvbnRleHQoKSBhbGxvY2F0ZWQgdGhlCnF1 ZXJ5IGNvbnRleHQgaW4gdGhlIGdsb2JhbCBRdWVyeUNvbnRleHQgbWVtb3J5IGNvbnRleHQuCgpk b19jaGlsZCgpIHJlc2V0cyBRdWVyeUNvbnRleHQgKE1lbW9yeUNvbnRleHRSZXNldEFuZERlbGV0 ZUNoaWxkcmVuKQphdCB0aGUgdG9wIG9mIGV2ZXJ5IGl0ZXJhdGlvbiBvZiBpdHMgcXVlcnkgcHJv Y2Vzc2luZyBsb29wLiAgSW4gbm9ybWFsCm9wZXJhdGlvbiBwb29sX3Byb2Nlc3NfcXVlcnkoKSBy dW5zIHRoZSB3aG9sZSBzZXNzaW9uIGluIGEgc2luZ2xlCml0ZXJhdGlvbiwgc28gUXVlcnlDb250 ZXh0IGlzIGVmZmVjdGl2ZWx5IHNlc3Npb24gbGl2ZWQgYW5kIHRoaXMgaXMKaGFybWxlc3MuICBC dXQgd2hlbiBwb29sX3Byb2Nlc3NfcXVlcnkoKSByZXR1cm5zIFBPT0xfQ09OVElOVUUgaW4gdGhl Cm1pZGRsZSBvZiBhIHNlc3Npb24sIHRoZSBsb29wIGl0ZXJhdGVzIGFuZCBRdWVyeUNvbnRleHQg aXMgcmVzZXQgd2hpbGUKdGhlIHNlbnQvcGVuZGluZyBtZXNzYWdlIGxpc3RzIHN0aWxsIHJlZmVy ZW5jZSBxdWVyeSBjb250ZXh0cyB0aGF0CndlcmUgYWxsb2NhdGVkIGluIGl0LiAgVGhlIGZyZWVk IHF1ZXJ5IGNvbnRleHRzIGFyZSBsYXRlciBkZXJlZmVyZW5jZWQKKGZvciBleGFtcGxlIGZyb20g cG9vbF9jbGVhcl9zZW50X21lc3NhZ2VfbGlzdCgpIGluCnJlc2V0X2Nvbm5lY3Rpb24oKSwgb3Ig ZnJvbSBwb29sX3JlbW92ZV9zZW50X21lc3NhZ2UoKSB3aGlsZSBiaW5kaW5nIGEKcmV1c2VkIHN0 YXRlbWVudCBuYW1lKSwgY2F1c2luZyBhIHVzZS1hZnRlci1mcmVlIGFuZCBhIFNJR1NFR1YuCgpU aGlzIGlzIHJlYWNoYWJsZSB3aGVuIGEgYmFja2VuZCBub2RlIGlzIHNodXQgZG93biBieSBhbgph ZG1pbmlzdHJhdGl2ZSBjb21tYW5kIChlLmcuICJmYXN0IiBzaHV0ZG93biBvZiBQb3N0Z3JlU1FM KSB3aGlsZSBhCmNsaWVudCBzZXNzaW9uIHRoYXQgaGFzIG5hbWVkIHByZXBhcmVkIHN0YXRlbWVu dHMgaXMgb3Blbi4KcmVhZF9wYWNrZXRzX2FuZF9wcm9jZXNzKCkgZGV0ZWN0cyB0aGUgYWRtaW4g c2h1dGRvd24sIHNldHMgd2FzX2Vycm9yCmFuZCByZXR1cm5zIFBPT0xfQ09OVElOVUUgKGNvbnQg PSBmYWxzZSksIHNvIHBvb2xfcHJvY2Vzc19xdWVyeSgpCnJldHVybnMgdG8gZG9fY2hpbGQoKSBt aWQgc2Vzc2lvbiBhbmQgdGhlIG5leHQgbG9vcCBpdGVyYXRpb24gZnJlZXMKdGhlIHN0aWxsIHJl ZmVyZW5jZWQgcXVlcnkgY29udGV4dHMuCgpGaXggdGhpcyBieSBhbGxvY2F0aW5nIHRoZSBxdWVy eSBjb250ZXh0IHVuZGVyIHRoZSBzZXNzaW9uIG1lbW9yeQpjb250ZXh0IHJhdGhlciB0aGFuIHRo ZSBwZXItaXRlcmF0aW9uIFF1ZXJ5Q29udGV4dCwgc28gaXRzIGxpZmV0aW1lCm1hdGNoZXMgdGhl IHNlc3Npb24gc2NvcGVkIGxpc3RzIHRoYXQgcmVmZXJlbmNlIGl0LiAgV2hlbiB0aGVyZSBpcyBu bwpzZXNzaW9uIGNvbnRleHQgKGludGVybmFsIHF1ZXJpZXMgaXNzdWVkIGJlZm9yZSBhIHNlc3Np b24gZXhpc3RzKSBmYWxsCmJhY2sgdG8gUXVlcnlDb250ZXh0LCBwcmVzZXJ2aW5nIHRoZSBwcmV2 aW91cyBiZWhhdmlvdXIuICBRdWVyeQpjb250ZXh0cyBhcmUgc3RpbGwgZnJlZWQgZXhwbGljaXRs eSBieSBwb29sX3F1ZXJ5X2NvbnRleHRfZGVzdHJveSgpLAphbmQgYXQgdGhlIGxhdGVzdCB3aGVu IHRoZSBzZXNzaW9uIG1lbW9yeSBjb250ZXh0IGlzIGRlc3Ryb3llZCwgc28KdGhpcyBkb2VzIG5v dCBjaGFuZ2UgbWVtb3J5IHJlY2xhbWF0aW9uIGZvciB0aGUgbm9ybWFsCnNpbmdsZS1pdGVyYXRp b24gY2FzZSAoaW4gd2hpY2ggUXVlcnlDb250ZXh0IHdhcyBsaWtld2lzZSBvbmx5IGZyZWVkCmF0 IHNlc3Npb24gZW5kKS4KCkF1dGhvcjogRW1vbmQgUGFwZWdhYWlqIDxlbW9uZC5wYXBlZ2FhaWpA Z21haWwuY29tPgpSZXBvcnRlZC1ieTogQ2xhdWRlIENvZGUKUmV2aWV3ZWQtYnk6IFRhdHN1byBJ c2hpaSA8aXNoaWlAcG9zdGdyZXNxbC5vcmc+CkRpc2N1c3Npb246IGh0dHBzOi8vd3d3LnBvc3Rn cmVzcWwub3JnL21lc3NhZ2UtaWQvQ0FHWHNjJTJCYUZmdjJfUFVyRWRDdDhUb3VzWVA5ZFBtdHkz aSUyQjBta0pwV3dWZyUzRGZWTiUyQlElNDBtYWlsLmdtYWlsLmNvbQoKQnJhbmNoCi0tLS0tLQpW NF8zX1NUQUJMRQoKRGV0YWlscwotLS0tLS0tCmh0dHBzOi8vZ2l0LnBvc3RncmVzcWwub3JnL2dp dHdlYj9wPXBncG9vbDIuZ2l0O2E9Y29tbWl0ZGlmZjtoPWQ1OTY1NGM0ZTE5YzdlNDAxNDBkY2Vk MjkwMjU5N2YyODUxMWY1ZGQKCk1vZGlmaWVkIEZpbGVzCi0tLS0tLS0tLS0tLS0tCnNyYy9jb250 ZXh0L3Bvb2xfcXVlcnlfY29udGV4dC5jIHwgMzQgKysrKysrKysrKysrKysrKysrKysrKysrKysr LS0tLS0tLQoxIGZpbGUgY2hhbmdlZCwgMjcgaW5zZXJ0aW9ucygrKSwgNyBkZWxldGlvbnMoLSkK Cg== --===============8699789381195472872==--