From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-17.smtp.github.com (out-17.smtp.github.com [192.30.252.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 43C82478E55 for ; Tue, 16 Jun 2026 17:24:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.30.252.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781630641; cv=none; b=pUDAa7EWkd/+JUsOY8Hy3bAOTzCBFy0/t31e4I07oMI3uaXPV3AzULrfP5oQ/vuIg6dmnaM8Di1/J+HKMvR82h8NgExHAo/N7fJxK8pDt55eF0+dnh6SSjlxGr80qi/u8beineMxbCGS3DxyO6zdDUhPfgu1wsMTbq4dT89N7vI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781630641; c=relaxed/simple; bh=n7NOsgBH4xs5egon/swzVRBOD9K9Lgi4gWi2o6XcnNY=; h=Date:From:To:Message-ID:Subject:Mime-Version:Content-Type; b=fMfRCqR7wZY3aERUjcNYNdSYirIAW6oqJGdjYiaYLx+vLyXH24muZ/k8hriKBt7QhSwcf9nsC4XAuKlcSpDTPIuF6DNk8mpv48wzciLJRSvR0yVsDb7v1zh5nPrAkwK2idwEFX1JjQqEbRPOcAU51WFeGLG7KwvLaCJ6MuSKD1w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=github.com; spf=pass smtp.mailfrom=github.com; dkim=pass (1024-bit key) header.d=github.com header.i=@github.com header.b=EM+W1ZBr; arc=none smtp.client-ip=192.30.252.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=github.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=github.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=github.com header.i=@github.com header.b="EM+W1ZBr" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2023; t=1781630639; bh=FWMamDdqvayHiyXYX63xuejMWlHeya0nxzOVdWygSRk=; h=Date:From:To:Subject:List-Unsubscribe:From; b=EM+W1ZBrw7XAtUxydnhBmjUaug9P62ArObYvcXoE4ul3SHZAL4B/tC1kjQd2aHwbu VoBYY0miIRAMEPN0F91k5h3SHiWpSlrw2XUwg+iyUu7u4ChHI0QUC86dO71FoTDT8W ZYPz94Vy3e8dkKSqfEGeZNDl98rqP+7VNVHS2UT8= Received: from github.com (hubbernetes-node-4aa3f6f.va3-iad.github.net [10.48.124.77]) by smtp.github.com (Postfix) with ESMTPA id 662F0500C5C for ; Tue, 16 Jun 2026 10:23:59 -0700 (PDT) Date: Tue, 16 Jun 2026 10:23:59 -0700 From: fdanis-oss To: linux-bluetooth@vger.kernel.org Message-ID: Subject: [bluez/bluez] 4f34c4: shared/gatt: Fix gatt-db buffer overflow for clone... Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-GitHub-Recipient-Address: linux-bluetooth@vger.kernel.org X-Auto-Response-Suppress: All Branch: refs/heads/1112321 Home: https://github.com/bluez/bluez Commit: 4f34c4155f8ff852ab543ba8e4ca85fcc600530b https://github.com/bluez/bluez/commit/4f34c4155f8ff852ab543ba8e4ca8= 5fcc600530b Author: Fr=C3=A9d=C3=A9ric Danis Date: 2026-06-16 (Tue, 16 Jun 2026) Changed paths: M src/shared/gatt-db.c Log Message: ----------- shared/gatt: Fix gatt-db buffer overflow for cloned db On notify_service_changed() timeout, db_hash_update() is called but for cloned db the last-handle has not been copied and only one slot is allocated, ending in buffer overflow: =3D=3D288975=3D=3DERROR: AddressSanitizer: heap-buffer-overflow on addres= s 0x5020000ac220 at pc 0x55f8b7e551bf bp 0x7ffcd6e9ddf0 sp 0x7ffcd6e9dde0= WRITE of size 8 at 0x5020000ac220 thread T0 #0 0x55f8b7e551be in gen_hash_m src/shared/gatt-db.c:415 #1 0x55f8b7e5d817 in gatt_db_service_foreach src/shared/gatt-db.c:174= 4 #2 0x55f8b7e5d817 in gatt_db_service_foreach src/shared/gatt-db.c:172= 2 #3 0x55f8b7e60c6c in foreach_service_in_range src/shared/gatt-db.c:16= 33 #4 0x55f8b7e60c6c in foreach_in_range src/shared/gatt-db.c:1656 #5 0x55f8b7dde002 in queue_foreach src/shared/queue.c:207 #6 0x55f8b7e5c435 in gatt_db_foreach_service_in_range src/shared/gatt= -db.c:1698 #7 0x55f8b7e5c87c in db_hash_update src/shared/gatt-db.c:442 #8 0x55f8b7f15283 in timeout_callback src/shared/timeout-glib.c:25 #9 0x7fc1845154f1 (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5e4f1) (= BuildId: 116e142b9b52c8a4dfd403e759e71ab8f95d8bb3) #10 0x7fc18451445d (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5d45d) = (BuildId: 116e142b9b52c8a4dfd403e759e71ab8f95d8bb3) #11 0x7fc184573976 (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0xbc976) = (BuildId: 116e142b9b52c8a4dfd403e759e71ab8f95d8bb3) #12 0x7fc184514f46 in g_main_loop_run (/lib/x86_64-linux-gnu/libglib-= 2.0.so.0+0x5df46) (BuildId: 116e142b9b52c8a4dfd403e759e71ab8f95d8bb3) #13 0x55f8b7f157e8 in mainloop_run src/shared/mainloop-glib.c:65 #14 0x55f8b7f16116 in mainloop_run_with_signal src/shared/mainloop-no= tify.c:196 #15 0x55f8b7af46df in main src/main.c:1709 #16 0x7fc18382a1c9 in __libc_start_call_main ../sysdeps/nptl/libc_sta= rt_call_main.h:58 #17 0x7fc18382a28a in __libc_start_main_impl ../csu/libc-start.c:360 #18 0x55f8b7af68b4 in _start (/home/fdanis/src/bluez/src/bluetoothd+0= x6588b4) (BuildId: 89dc89ac5800f58cc305bae57a965b1185601a3e) 0x5020000ac220 is located 0 bytes after 16-byte region [0x5020000ac210,0x= 5020000ac220) allocated by thread T0 here: #0 0x7fc1846fd9c7 in malloc ../../../../src/libsanitizer/asan/asan_ma= lloc_linux.cpp:69 #1 0x55f8b7ddf2b6 in util_malloc src/shared/util.c:46 To unsubscribe from these emails, change your notification settings at ht= tps://github.com/bluez/bluez/settings/notifications