From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from hua.moonlit-rail.com (hua.moonlit-rail.com [45.79.167.250]) (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 62A013290B5; Fri, 27 Feb 2026 04:58:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.79.167.250 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772168291; cv=none; b=PvK3tKpuMNTxcZy7iXY/26QxDRMCQLzmOt4iJ2ZZviEfPInQLMqOz31p3I8aD2g64GY0lkZZKJ81IAKE/O0u+CJU5KAHlkBtxx8xyHA5J0E0ryNXuHZp9tjUaEumeEbOl8dlfU2n7PNU5AWRJRVlrYSJB2m59sHBC2sGdIoe8hc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772168291; c=relaxed/simple; bh=7WTEYsfKRK+FAjDteikPL4IN19BC+NWZFx/2o8xFHiM=; h=Message-ID:Date:MIME-Version:To:Cc:References:Subject:From: In-Reply-To:Content-Type; b=SrZxnKh2XwYlXxMzJotHu+mXDkTpTs8u1IP3PBzmzWiLCWiCjccZUz8CJTosvdTIC6rsdIt9n3acQVVHyJIdr7xStnPfzudT4ynyq7kxSOm6ROD+4G97/vpWc+FaKElNjJz7w5zMIawlFmHct+kjq1m5zOzsgNKfVoX1+p4/qn0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=moonlit-rail.com; spf=pass smtp.mailfrom=moonlit-rail.com; dkim=pass (2048-bit key) header.d=moonlit-rail.com header.i=@moonlit-rail.com header.b=IBzyUY7x; dkim=permerror (0-bit key) header.d=moonlit-rail.com header.i=@moonlit-rail.com header.b=l7fYdS6Q; arc=none smtp.client-ip=45.79.167.250 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=moonlit-rail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=moonlit-rail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=moonlit-rail.com header.i=@moonlit-rail.com header.b="IBzyUY7x"; dkim=permerror (0-bit key) header.d=moonlit-rail.com header.i=@moonlit-rail.com header.b="l7fYdS6Q" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=moonlit-rail.com; s=rsa2021a; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:From:Subject:References:Cc:To:MIME-Version:Date:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=+NYI3sC2Rh8Ca1+y95noCqHR8Z4CPLuvLt0BLd+Eomg=; t=1772167562; x=1774759562; b=IBzyUY7xUmltV/I+SOKbFz5OJOdi/Ml88OIP4mkFEWYRadgdRSNj2LbiaYN+NHWDZcTXltMkmCv U9adlPjQV/3VVSiyGQl17E5IqBLdSIEvuRzLibes/ejlbkH6nrZqb3gDexJG9udEVXQ1Tz+MmwbHU yp53DaaIp1Hi+rUw7FEUZn4/9pW4y6I0lE4ejWWZvlHBHjCFmC5lFJ2YbDJ/Uu8FqAmHaiqXkdIo5 wEyAN/872MmiNbOTJfgmkq7BloYDy8Uz5EXBb2WQMMNYbpZL9yeYvMY+vWTh48k3Ba2Tf7L8zKz01 e6i6FarNKqN6WmHwqFYV6eS1yJ3yfsKi7IHw==; DKIM-Signature: v=1; a=ed25519-sha256; q=dns/txt; c=relaxed/relaxed; d=moonlit-rail.com; s=edd2021a; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:From:Subject:References:Cc:To:MIME-Version:Date:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=+NYI3sC2Rh8Ca1+y95noCqHR8Z4CPLuvLt0BLd+Eomg=; t=1772167562; x=1774759562; b=l7fYdS6Qj2vj3mwoaH8OyS4EuEIgidNHyd6u1EVAZoCAjH3C5HxzxI7I/YlrdvRiyynxIhpIV4L mTwWYzgAFAA==; Message-ID: Date: Thu, 26 Feb 2026 23:46:02 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: gregkh@linuxfoundation.org Cc: akpm@linux-foundation.org, jslaby@suse.cz, linux-kernel@vger.kernel.org, lwn@lwn.net, stable@vger.kernel.org, torvalds@linux-foundation.org References: <2026022657-clambake-mountable-8175@gregkh> Subject: Re: Linux 6.19.4 - Oops, regression From: "Kris Karas (Bug Reporting)" Content-Language: en-US, en-GB In-Reply-To: <2026022657-clambake-mountable-8175@gregkh> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit GregKH wrote: > I'm announcing the release of the 6.19.4 kernel. > All users of the 6.19 kernel series must upgrade. Just tried 6.19.4 (and 6.18.14) and am getting a repeatable Oops right when networking is initialized, likely when nft is loading its ruleset from /etc/nftables/*.conf Once the nft Oops triggers, other processes start to throw errors with memory allocate/free, resulting very quickly in an unusable system. I have several systems that run iptables, which are unaffected, notably my border router with 400+ rules. I have three systems running nftables, one of which is affected, the affected one having the more sophisticated nft ruleset (bridging, 802.1Q, etc). Kris ---------- Snip ---------- Here's the output from dmesg: > 8021q: adding VLAN 0 to HW filter on device eth0 > ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade > rev:0 func:0 (0x1001) > igb 0000:0a:00.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps Full Duplex, > Flow Control: RX > BUG: unable to handle page fault for address: 000000010000001d > #PF: supervisor read access in kernel mode > #PF: error_code(0x0000) - not-present page > PGD 126bd2067 P4D 126bd2067 PUD 0 > Oops: Oops: 0000 [#1] SMP > CPU: 12 UID: 0 PID: 1184 Comm: nft Not tainted 6.19.4 #1 PREEMPTLAZY > Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./X470 > Taichi, BIOS P10.41 04/14/2025 > RIP: 0010:__kmalloc_noprof+0x1d0/0x3c0 > Code: 2e 85 5b 01 48 8b 50 08 48 83 78 10 00 48 8b 38 0f 84 b7 01 00 > 00 48 85 ff 0f 84 ae 01 00 00 41 8b 41 30 49 8b 31 48 8d 4a 20 <48> 8b > 1c 07 48 89 f8 65 48 0f c7 0e 75 c1 41 8b 41 30 0f 0d 0c 03 > RSP: 0018:ffffc9000111f5e0 EFLAGS: 00010202 > RAX: 0000000000000020 RBX: ffff88810592e200 RCX: 0000000000042a4c > RDX: 0000000000042a2c RSI: ffffffff82af08e0 RDI: 00000000fffffffd > RBP: ffffc9000111f620 R08: 0000000000000030 R09: ffff888100044300 > R10: 0000000000400dc0 R11: 0000000000000030 R12: 0000000000000000 > R13: ffffc9000111f70e R14: ffffffffa06737f4 R15: ffffc9000111f7b8 > FS:  00007fc46c393740(0000) GS:ffff88907c036000(0000) > knlGS:0000000000000000 > CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 000000010000001d CR3: 0000000126bd5000 CR4: 0000000000350ef0 > Call Trace: > > ? nla_memcpy+0x29/0x60 > nft_set_elem_init+0x44/0x140 [nf_tables] > nft_add_set_elem+0xa77/0x14e0 [nf_tables] > ? vsnprintf+0x3ac/0x5a0 > ? __nft_trans_set_add+0xb6/0x120 [nf_tables] > ? nla_strcmp+0x10/0x60 > nf_tables_newsetelem+0x19e/0x270 [nf_tables] > nfnetlink_rcv_batch+0x582/0x8e0 > ? netlink_alloc_large_skb+0x3a/0xa0 > ? __alloc_frozen_pages_noprof+0x148/0x280 > nfnetlink_rcv+0x172/0x190 > netlink_unicast+0x1d4/0x2b0 > netlink_sendmsg+0x1ed/0x410 > __sock_sendmsg+0x2b/0x40 > ____sys_sendmsg+0x1fb/0x220 > ? copy_msghdr_from_user+0xe5/0x170 > ___sys_sendmsg+0x78/0xc0 > ? security_capable+0x25/0x50 > ? release_sock+0x14/0x80 > ? sk_setsockopt+0x36c/0x1590 > ? __handle_mm_fault+0x975/0x1660 > ? do_sock_getsockopt+0x1a2/0x1d0 > __sys_sendmsg+0x66/0xc0 > do_syscall_64+0x4e/0xe30 > entry_SYSCALL_64_after_hwframe+0x4b/0x53 > RIP: 0033:0x7fc46c0981f7 > Code: 08 74 44 b8 04 00 00 00 48 8b 15 ec 6b 16 00 64 89 02 48 c7 c2 > ff ff ff ff 48 83 c4 10 48 89 d0 5b c3 90 48 8b 44 24 20 0f 05 <48> 63 > d0 3d 00 f0 ff ff 77 0f 48 83 c4 10 48 89 d0 5b c3 66 0f 1f > RSP: 002b:00007ffec97ae5f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e > RAX: ffffffffffffffda RBX: 0000000009146b20 RCX: 00007fc46c0981f7 > RDX: 0000000000000000 RSI: 00007ffec97bf6d0 RDI: 0000000000000003 > RBP: 00007ffec97bf7c0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec97bf810 > R13: 0000000000013800 R14: 0000000000000003 R15: 00007ffec97ae640 > > Modules linked in: nft_meta_bridge nf_conntrack_bridge nft_log > nft_limit nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_ct tap > nf_tables ip_set ip6table_security iptable_security ip6table_raw > iptable_raw ip6table_mangle iptabl > e_mangle ip6table_nat iptable_nat ip6table_filter ip6_tables > iptable_filter ip_tables btusb btrtl btintel btbcm btmtk bluetooth > sd_mod iwlmvm uas usb_storage mac80211 iwlwifi ahci > snd_hda_codec_alc882 libahci snd_hda_codec_realtek > _lib cfg80211 igb libata rfkill snd_hda_codec_generic i2c_algo_bit > snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep > snd_pcm snd_timer snd soundcore ee1004 acpi_cpufreq gpio_amdpt > gpio_generic processor joydev bi > nfmt_misc > CR2: 000000010000001d > ---[ end trace 0000000000000000 ]--- > RIP: 0010:__kmalloc_noprof+0x1d0/0x3c0 > Code: 2e 85 5b 01 48 8b 50 08 48 83 78 10 00 48 8b 38 0f 84 b7 01 00 > 00 48 85 ff 0f 84 ae 01 00 00 41 8b 41 30 49 8b 31 48 8d 4a 20 <48> 8b > 1c 07 48 89 f8 65 48 0f c7 0e 75 c1 41 8b 41 30 0f 0d 0c 03 > RSP: 0018:ffffc9000111f5e0 EFLAGS: 00010202 > RAX: 0000000000000020 RBX: ffff88810592e200 RCX: 0000000000042a4c > RDX: 0000000000042a2c RSI: ffffffff82af08e0 RDI: 00000000fffffffd > RBP: ffffc9000111f620 R08: 0000000000000030 R09: ffff888100044300 > R10: 0000000000400dc0 R11: 0000000000000030 R12: 0000000000000000 > R13: ffffc9000111f70e R14: ffffffffa06737f4 R15: ffffc9000111f7b8 > FS:  00007fc46c393740(0000) GS:ffff88907c036000(0000) > knlGS:0000000000000000 > CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 000000010000001d CR3: 0000000126bd5000 CR4: 0000000000350ef0 > note: nft[1184] exited with irqs disabled