From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f72.google.com (mail-oa1-f72.google.com [209.85.160.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04DEE2DA742 for ; Fri, 6 Feb 2026 15:54:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770393244; cv=none; b=MLCg2yWp8vspTg68yVFo8E1k//CoWIAAihChT5tm9eu57ToK5Rbs5eigjWbujNMHUBJhRRwaKckLPzivfxTRxHrgDk6OKEO27tvLN5fpNVWoigDIHgTAIq4FGkGsEg84hDZxgYGMygK8N2zBjXys7r4GejXevFwBVY9ty0KYJDE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770393244; c=relaxed/simple; bh=poxshLjyL1iuUMOxKRYSdXpMH4+uFcDYNU5fyJt1/ds=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=sSd/kPrNQH96F9bdaA1Ax0DInxctjkMwyxdjbQUj/dsMEXhr2VvGztIsEn3weu9YDq8wemZ5ex5N5i5a/pVXuCurrsfSXbWmL9WsGSNB+ebgIuaBE/UEPiWzW1fSzXhfBM72vcsMHs7XanNjb5mzZIinG9Mpn9ZUFILxUa+Ur/8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.160.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oa1-f72.google.com with SMTP id 586e51a60fabf-4096f92cf50so1537176fac.3 for ; Fri, 06 Feb 2026 07:54:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770393243; x=1770998043; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=MZwIOlCEcZ1/mwFQLOXrgSNzjwTWBCgFcvsLPiVN81w=; b=SnbuBGbh5Y5sT3YImAAp9jZTwVh08f0U150CRfi13EjPPPCNGme2aDPvfUqA62cPTW KeIdV+Mkp6ZrqtSsUEcRYCgfUYfENvZboOA8CLpiHR8f/XXFSEkKYlFzGR91q8ZdhNUm VMgLyhwdFrzghrvrJlZIrWUCo8iwRYHcuMsbnvNU92cXBacMyLUEzlpjGhuY/outY/wX 4xuuk2F2dov/vDM4XnV1Gm6D6zh8AeTPxa9U0vneoHCVItQxDQKjk+AcTFZknF8SEkx5 FPn6u1QimnRupQ0L2fGACLMbLyPfZZpuXo2Ac1jdpUCtPM8vZXVeqstAoO9g7j4gPPhO x8yA== X-Forwarded-Encrypted: i=1; AJvYcCU9Bq7ibuPqS0QegaQrpYdvNiSmErM+JdrhjeF2AyxV+VEV8O4lDsEhdm7eBP3GKOUc73H9migluU6PoOg=@vger.kernel.org X-Gm-Message-State: AOJu0YxLDok8Q0n6yAIuTC2HsRuFdJZVNcPwzNB8ZTOPN5cXDMQqiQJh iEMix85ivUs00SXe6Q0WAN/BYrakEuA/hX2E+0J7Orol3rtNsu5y/oSisAuhQjc6UKxQ496H71m 8gHDtsXG3Yir2je7wxO3ZED0aAVUwurNhtcJiXnXdUGctmRPg4oIb558kTYc= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:4910:b0:668:d715:1090 with SMTP id 006d021491bc7-66d0bea4a39mr1115081eaf.49.1770393242940; Fri, 06 Feb 2026 07:54:02 -0800 (PST) Date: Fri, 06 Feb 2026 07:54:02 -0800 In-Reply-To: <20260206131035.1075510-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69860e9a.050a0220.3b3015.0040.GAE@google.com> Subject: Re: [syzbot] [ext4?] kernel BUG in ext4_write_inline_data (4) From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in ext4_write_inline_data ------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:240! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 7347 Comm: syz.1.123 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:ext4_write_inline_data+0x40b/0x4f0 fs/ext4/inline.c:240 Code: fe e8 49 6f 3f ff 42 8d 44 23 c4 bb 3c 00 00 00 89 44 24 08 44 29 e3 e9 aa fe ff ff e8 2e 6f 3f ff 90 0f 0b e8 26 6f 3f ff 90 <0f> 0b e8 1e 6f 3f ff 48 8d 3d f7 37 f6 0d 48 c7 c2 60 5b ac 8b 4c RSP: 0018:ffffc9000b4cf4e0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000001000 RCX: ffffffff82c7893b RDX: ffff88801cf6bd00 RSI: ffffffff82c78b5a RDI: ffff88801cf6bd00 RBP: ffff888075dc3c58 R08: 0000000000000006 R09: 00000000000a9000 R10: 000000000000003c R11: 0000000000000000 R12: 00000000000a8000 R13: 00000000000a9000 R14: ffffc9000b4cf580 R15: ffff888075dc41c2 FS: 00007f9e9e6ff6c0(0000) GS:ffff8881245dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4f0f10c7d0 CR3: 000000005faf1000 CR4: 0000000000350ef0 Call Trace: ext4_write_inline_data_end+0x2a8/0xdb0 fs/ext4/inline.c:817 ext4_da_write_end+0x4f7/0xf20 fs/ext4/inode.c:3286 generic_perform_write+0x513/0xa40 mm/filemap.c:4335 ext4_buffered_write_iter+0x119/0x440 fs/ext4/file.c:299 ext4_file_write_iter+0xa3d/0x1d90 fs/ext4/file.c:723 iter_file_splice_write+0x82b/0x10a0 fs/splice.c:738 do_splice_from fs/splice.c:938 [inline] direct_splice_actor+0x192/0x6c0 fs/splice.c:1161 splice_direct_to_actor+0x345/0xa30 fs/splice.c:1105 do_splice_direct_actor fs/splice.c:1204 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1230 do_sendfile+0xadc/0xe20 fs/read_write.c:1370 __do_sys_sendfile64 fs/read_write.c:1431 [inline] __se_sys_sendfile64 fs/read_write.c:1417 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1417 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9e9d79aeb9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9e9e6ff028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f9e9da15fa0 RCX: 00007f9e9d79aeb9 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007f9e9d808c1f R08: 0000000000000000 R09: 0000000000000000 R10: 000000000e3aa6ea R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9e9da16038 R14: 00007f9e9da15fa0 R15: 00007ffe0e112068 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_write_inline_data+0x40b/0x4f0 fs/ext4/inline.c:240 Code: fe e8 49 6f 3f ff 42 8d 44 23 c4 bb 3c 00 00 00 89 44 24 08 44 29 e3 e9 aa fe ff ff e8 2e 6f 3f ff 90 0f 0b e8 26 6f 3f ff 90 <0f> 0b e8 1e 6f 3f ff 48 8d 3d f7 37 f6 0d 48 c7 c2 60 5b ac 8b 4c RSP: 0018:ffffc9000b4cf4e0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000001000 RCX: ffffffff82c7893b RDX: ffff88801cf6bd00 RSI: ffffffff82c78b5a RDI: ffff88801cf6bd00 RBP: ffff888075dc3c58 R08: 0000000000000006 R09: 00000000000a9000 R10: 000000000000003c R11: 0000000000000000 R12: 00000000000a8000 R13: 00000000000a9000 R14: ffffc9000b4cf580 R15: ffff888075dc41c2 FS: 00007f9e9e6ff6c0(0000) GS:ffff8881245dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0076e7000 CR3: 000000005faf1000 CR4: 0000000000350ef0 Tested on: commit: b7ff7151 Merge tag 'hwmon-for-v6.19-final' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13faed3a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=fea461e951c03b1b dashboard link: https://syzkaller.appspot.com/bug?extid=7de5fe447862fc37576f compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=1302ed3a580000