From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0D92C46477 for ; Tue, 11 Jun 2019 16:23:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A85E12080A for ; Tue, 11 Jun 2019 16:23:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391897AbfFKQX0 (ORCPT ); Tue, 11 Jun 2019 12:23:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50250 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391562AbfFKQXZ (ORCPT ); Tue, 11 Jun 2019 12:23:25 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4176CA6DEF; Tue, 11 Jun 2019 16:23:14 +0000 (UTC) Received: from [10.10.66.2] (ovpn-66-2.rdu2.redhat.com [10.10.66.2]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1BB235B681; Tue, 11 Jun 2019 16:23:12 +0000 (UTC) From: "Benjamin Coddington" To: syzbot Cc: anna.schumaker@netapp.com, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, syzkaller-bugs@googlegroups.com, trond.myklebust@hammerspace.com Subject: Re: memory leak in nfs_get_client Date: Tue, 11 Jun 2019 12:23:12 -0400 Message-ID: <223AB0C9-D93E-4D3C-BBBB-4AF40D8EA436@redhat.com> In-Reply-To: <000000000000f8a345058b046657@google.com> References: <000000000000f8a345058b046657@google.com> MIME-Version: 1.0 Content-Type: text/plain; format=flowed X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Tue, 11 Jun 2019 16:23:23 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ugh.. Now that you can cancel the wait, you have to also handle if "new" was allocated. I think this needs: diff --git a/fs/nfs/client.c b/fs/nfs/client.c index d7e4f0848e28..4d90f5bf0b0a 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -406,10 +406,10 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *cl_init) clp = nfs_match_client(cl_init); if (clp) { spin_unlock(&nn->nfs_client_lock); - if (IS_ERR(clp)) - return clp; if (new) new->rpc_ops->free_client(new); + if (IS_ERR(clp)) + return clp; return nfs_found_client(cl_init, clp); } if (new) { I'll patch/test and send it along. Ben On 11 Jun 2019, at 0:05, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: d1fdb6d8 Linux 5.2-rc4 > git tree: upstream > console output: > https://syzkaller.appspot.com/x/log.txt?x=117e0f71a00000 > kernel config: > https://syzkaller.appspot.com/x/.config?x=cb38d33cd06d8d48 > dashboard link: > https://syzkaller.appspot.com/bug?extid=7fe11b49c1cc30e3fce2 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: > https://syzkaller.appspot.com/x/repro.syz?x=15a46001a00000 > C reproducer: > https://syzkaller.appspot.com/x/repro.c?x=174b24d1a00000 > > IMPORTANT: if you fix the bug, please add the following tag to the > commit: > Reported-by: syzbot+7fe11b49c1cc30e3fce2@syzkaller.appspotmail.com > > fl=212 nc=0 na=0] > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 18.210s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 18.150s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 18.150s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 19.230s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 19.170s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 19.170s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 21.200s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 21.140s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 21.140s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 22.200s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 22.140s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 22.140s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 23.180s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 23.120s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 23.120s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 24.200s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 24.140s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 24.140s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 25.180s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 25.120s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 25.120s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > executing program > > > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@googlegroups.com. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches