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Mon, 09 Feb 2026 00:06:57 +0000 Content-Type: multipart/mixed; boundary="===============2840515861074053061==" MIME-Version: 1.0 From: Thomas Munro To: pgsql-committers@lists.postgresql.org Subject: pgsql: Fix buffer overflows in pg_trgm due to lower-casing X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Mon, 09 Feb 2026 00:06:57 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============2840515861074053061== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Rml4IGJ1ZmZlciBvdmVyZmxvd3MgaW4gcGdfdHJnbSBkdWUgdG8gbG93ZXItY2FzaW5nCgpUaGUg Y29kZSBtYWRlIGEgc3VidGxlIGFzc3VtcHRpb24gdGhhdCB0aGUgbG93ZXItY2FzZWQgdmVyc2lv biBvZiBhCnN0cmluZyBuZXZlciBoYXMgbW9yZSBjaGFyYWN0ZXJzIHRoYW4gdGhlIG9yaWdpbmFs LiBUaGF0IGlzIG5vdCBhbHdheXMKdHJ1ZS4gRm9yIGV4YW1wbGUsIGluIGEgZGF0YWJhc2Ugd2l0 aCB0aGUgbGF0aW45IGVuY29kaW5nOgoKICAgIGxhdGluOWRiPSMgc2VsZWN0IGxvd2VyKFUmJ1ww MENDJyBDT0xMQVRFICJsdC14LWljdSIpOwogICAgICAgbG93ZXIKICAgIC0tLS0tLS0tLS0tCiAg ICAgaVx4MUFceDFBCiAgICAoMSByb3cpCgpJbiB0aGlzIGV4YW1wbGUsIGxvd2VyLWNhc2luZyBl eHBhbmRzIHRoZSBzaW5nbGUgaW5wdXQgY2hhcmFjdGVyIGludG8KdGhyZWUgY2hhcmFjdGVycy4K ClRoZSBnZW5lcmF0ZV90cmdtX29ubHkoKSBmdW5jdGlvbiByZWxpZWQgb24gdGhhdCBhc3N1bXB0 aW9uIGluIHR3bwp3YXlzOgoKLSBJdCB1c2VkICJzbGVuICogcGdfZGF0YWJhc2VfZW5jb2Rpbmdf bWF4X2xlbmd0aCgpICsgNCIgdG8gYWxsb2NhdGUKICB0aGUgYnVmZmVyIHRvIGhvbGQgdGhlIGxv d2VyY2FzZWQgYW5kIGJsYW5rLXBhZGRlZCBzdHJpbmcuIFRoYXQKICBmb3JtdWxhIGFjY291bnRz IGZvciBleHBhbnNpb24gaWYgdGhlIGxvd2VyLWNhc2UgY2hhcmFjdGVycyBhcmUKICBsb25nZXIg KGluIGJ5dGVzKSB0aGFuIHRoZSBvcmlnaW5hbHMsIGJ1dCBpdCdzIHN0aWxsIG5vdCBlbm91Z2gg aWYKICB0aGUgbG93ZXItY2FzZWQgc3RyaW5nIGNvbnRhaW5zIG1vcmUgKmNoYXJhY3RlcnMqIHRo YW4gdGhlIG9yaWdpbmFsLgoKLSBJdHMgY2FsbGVycyBzaXplZCB0aGUgb3V0cHV0IGFycmF5IHRv IGhvbGQgdGhlIHRyaWdyYW1zIGV4dHJhY3RlZAogIGZyb20gdGhlIGlucHV0IHN0cmluZyB3aXRo IHRoZSBmb3JtdWxhICIoc2xlbiAvIDIgKyAxKSAqIDMiLCB3aGVyZQogICdzbGVuJyBpcyB0aGUg aW5wdXQgc3RyaW5nIGxlbmd0aCBpbiBieXRlcy4gKFRoZSBmb3JtdWxhIHdhcwogIGdlbmVyb3Vz IHRvIGFjY291bnQgZm9yIHRoZSBwb3NzaWJpbGl0eSB0aGF0IFJQQURESU5HIHdhcyBzZXQgdG8g Mi4pCiAgVGhhdCdzIGFsc28gbm90IGVub3VnaCBpZiBvbmUgaW5wdXQgYnl0ZSBjYW4gdHVybiBp bnRvIG11bHRpcGxlCiAgY2hhcmFjdGVycy4KClRvIGZpeCwgaW50cm9kdWNlIGEgZ3Jvd2FibGUg dHJpZ3JhbSBhcnJheSBhbmQgZ2l2ZSB1cCBvbiB0cnlpbmcgdG8KY2hvb3NlIHRoZSBjb3JyZWN0 IG1heCBidWZmZXIgc2l6ZXMgYWhlYWQgb2YgdGltZS4KCkJhY2twYXRjaCB0byB2MTgsIGJ1dCBu byBmdXJ0aGVyLiBJbiBwcmV2aW91cyB2ZXJzaW9ucyBsb3dlci1jYXNpbmcgd2FzCmRvbmUgY2hh cmFjdGVyIGJ5IGNoYXJhY3RlciwgYW5kIHRodXMgdGhlIGFzc3VtcHRpb24gdGhhdCBsb3dlci1j YXNpbmcKZG9lc24ndCBjaGFuZ2UgdGhlIGNoYXJhY3RlciBsZW5ndGggd2FzIHZhbGlkLiBUaGF0 IHdhcyBjaGFuZ2VkIGluIHYxOCwKY29tbWl0IGZiMWExODgxMGYuCgpTZWN1cml0eTogQ1ZFLTIw MjYtMjAwNwpSZXZpZXdlZC1ieTogTm9haCBNaXNjaCA8bm9haEBsZWFkYm9hdC5jb20+ClJldmll d2VkLWJ5OiBKZWZmIERhdmlzIDxwZ3NxbEBqLWRhdmlzLmNvbT4KCkJyYW5jaAotLS0tLS0KbWFz dGVyCgpEZXRhaWxzCi0tLS0tLS0KaHR0cHM6Ly9naXQucG9zdGdyZXNxbC5vcmcvcGcvY29tbWl0 ZGlmZi8wMDg5NmRkYWY0MWZhN2I3MjU5OTExMjA2NzhkNTQ0YzE4YzZhZjcwCkF1dGhvcjogSGVp a2tpIExpbm5ha2FuZ2FzIDxoZWlra2kubGlubmFrYW5nYXNAaWtpLmZpPgoKTW9kaWZpZWQgRmls ZXMKLS0tLS0tLS0tLS0tLS0KY29udHJpYi9wZ190cmdtL3RyZ21fb3AuYyAgICAgICAgfCAyNzUg KysrKysrKysrKysrKysrKysrKysrKysrKystLS0tLS0tLS0tLS0tCnNyYy90b29scy9wZ2luZGVu dC90eXBlZGVmcy5saXN0IHwgICAxICsKMiBmaWxlcyBjaGFuZ2VkLCAxODUgaW5zZXJ0aW9ucygr KSwgOTEgZGVsZXRpb25zKC0pCgo= --===============2840515861074053061==--