[{"id":3669413,"web_url":"http://patchwork.ozlabs.org/comment/3669413/","msgid":"<574e5fb7-a601-4b57-bfbf-b25a281905c1@canonical.com>","list_archive_url":null,"date":"2026-03-26T00:54:01","subject":"ACK: [SRU][J][PATCH 0/1] CVE-2024-50060","submitter":{"id":92836,"url":"http://patchwork.ozlabs.org/api/people/92836/","name":"Yufeng Gao","email":"yufeng.gao@canonical.com"},"content":"On 25/3/26 11:37, Tim Whisonant wrote:\n> SRU Justification:\n>\n> [Impact]\n>\n> io_uring: check if we need to reschedule during overflow flush\n>\n> In terms of normal application usage, this list will always be empty.\n> And if an application does overflow a bit, it'll have a few entries.\n> However, nothing obviously prevents syzbot from running a test case\n> that generates a ton of overflow entries, and then flushing them can\n> take quite a while.\n>\n> Check for needing to reschedule while flushing, and drop our locks and\n> do so if necessary. There's no state to maintain here as overflows\n> always prune from head-of-list, hence it's fine to drop and reacquire\n> the locks at the end of the loop.\n>\n> [Fix]\n>\n> Questing: not affected\n> Noble: fixed separately\n> Jammy: backported from upstream\n> Focal: not affected\n> Bionic: not affected\n> Xenial: not affected\n> Trusty: not affected\n>\n> [Test Plan]\n>\n> Compile and boot tested.\n>\n> [Where problems could occur]\n>\n> The change affects io_uring in the overflow list processing\n> code. Issues might affect slow consumer processes that cause\n> the overflow path to be taken.\n>\n> Jens Axboe (1):\n> io_uring: check if we need to reschedule during overflow flush\n>\n> io_uring/io_uring.c | 17 +++++++++++++++++\n> 1 file changed, 17 insertions(+)\n>\nAcked-by: Yufeng Gao ","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=l0GF/67B;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; helo=lists.ubuntu.com;\n envelope-from=kernel-team-bounces@lists.ubuntu.com;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fh4zV4qGmz1xy1\n\tfor ; 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charset=\"utf-8\"; Format=\"flowed\"","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "}},{"id":3670078,"web_url":"http://patchwork.ozlabs.org/comment/3670078/","msgid":"<637e4e3d-cc7b-48f4-8475-3237a6683625@canonical.com>","list_archive_url":null,"date":"2026-03-27T04:58:57","subject":"ACK: [SRU][J][PATCH 0/1] CVE-2024-50060","submitter":{"id":85372,"url":"http://patchwork.ozlabs.org/api/people/85372/","name":"Masahiro Yamada","email":"masahiro.yamada@canonical.com"},"content":"On 3/25/26 10:37, Tim Whisonant wrote:\n> SRU Justification:\n>\n> [Impact]\n>\n> io_uring: check if we need to reschedule during overflow flush\n>\n> In terms of normal application usage, this list will always be empty.\n> And if an application does overflow a bit, it'll have a few entries.\n> However, nothing obviously prevents syzbot from running a test case\n> that generates a ton of overflow entries, and then flushing them can\n> take quite a while.\n>\n> Check for needing to reschedule while flushing, and drop our locks and\n> do so if necessary. There's no state to maintain here as overflows\n> always prune from head-of-list, hence it's fine to drop and reacquire\n> the locks at the end of the loop.\n>\n> [Fix]\n>\n> Questing: not affected\n> Noble: fixed separately\n> Jammy: backported from upstream\n> Focal: not affected\n> Bionic: not affected\n> Xenial: not affected\n> Trusty: not affected\n>\n> [Test Plan]\n>\n> Compile and boot tested.\n>\n> [Where problems could occur]\n>\n> The change affects io_uring in the overflow list processing\n> code. Issues might affect slow consumer processes that cause\n> the overflow path to be taken.\n>\n> Jens Axboe (1):\n> io_uring: check if we need to reschedule during overflow flush\n>\n> io_uring/io_uring.c | 17 +++++++++++++++++\n> 1 file changed, 17 insertions(+)\n>\nAcked-by: Masahiro Yamada ","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=HJfvkubm;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; helo=lists.ubuntu.com;\n envelope-from=kernel-team-bounces@lists.ubuntu.com;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhpMd5xl9z1yFp\n\tfor ; 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charset=\"utf-8\"; Format=\"flowed\"","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "}},{"id":3674059,"web_url":"http://patchwork.ozlabs.org/comment/3674059/","msgid":"<87bjfv9j34.fsf@gmail.com>","list_archive_url":null,"date":"2026-04-07T10:10:39","subject":"APPLIED: [SRU][J][PATCH 0/1] CVE-2024-50060","submitter":{"id":89305,"url":"http://patchwork.ozlabs.org/api/people/89305/","name":"Mehmet Basaran","email":"mehmet.basaran@canonical.com"},"content":"Applied to jammy:linux master-next branch. Thanks.\nTim Whisonant writes:\n\n> SRU Justification:\n>\n> [Impact]\n>\n> io_uring: check if we need to reschedule during overflow flush\n>\n> In terms of normal application usage, this list will always be empty.\n> And if an application does overflow a bit, it'll have a few entries.\n> However, nothing obviously prevents syzbot from running a test case\n> that generates a ton of overflow entries, and then flushing them can\n> take quite a while.\n>\n> Check for needing to reschedule while flushing, and drop our locks and\n> do so if necessary. There's no state to maintain here as overflows\n> always prune from head-of-list, hence it's fine to drop and reacquire\n> the locks at the end of the loop.\n>\n> [Fix]\n>\n> Questing: not affected\n> Noble: fixed separately\n> Jammy: backported from upstream\n> Focal: not affected\n> Bionic: not affected\n> Xenial: not affected\n> Trusty: not affected\n>\n> [Test Plan]\n>\n> Compile and boot tested.\n>\n> [Where problems could occur]\n>\n> The change affects io_uring in the overflow list processing\n> code. Issues might affect slow consumer processes that cause\n> the overflow path to be taken.\n>\n> Jens Axboe (1):\n> io_uring: check if we need to reschedule during overflow flush\n>\n> io_uring/io_uring.c | 17 +++++++++++++++++\n> 1 file changed, 17 insertions(+)\n>\n> -- \n> 2.43.0\n>\n>\n> -- \n> kernel-team mailing list\n> kernel-team@lists.ubuntu.com\n> https://lists.ubuntu.com/mailman/listinfo/kernel-team","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=rUlRTPSE;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; helo=lists.ubuntu.com;\n envelope-from=kernel-team-bounces@lists.ubuntu.com;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fqhmD0hpXz1xtJ\n\tfor ; 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