From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ua1-f44.google.com (mail-ua1-f44.google.com [209.85.222.44]) (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 7D4D433DEC2 for ; Thu, 18 Jun 2026 22:24:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781821471; cv=none; b=tkp3MZXb9oC4fzCjwqwKm/UihMi0wxV4HK7MrctTS9dvfBoUg0V9emTDblsP3n7TkF3a3fhoGGJP9KRsE5sv6s18C46tbl3s5lnRWqkNY+UQwNdkGVk2Pqz2OLLR/qV7XiqACoAWyPKcdSbEq/qd+yXuaqaWrSNtuH0wIClcM2Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781821471; c=relaxed/simple; bh=X6fKpp2z2dd2mBwiB+qAI0VZKW5BMj2mgwHEs0ziWrk=; h=Message-ID:Date:Subject:To:Cc:Content-Type:MIME-Version:From; b=LUf5FOZ2vSUaqpF1LLOKCoEd1d4qtiKkVNuU2hlE7tfWtjQZ750dZge13m1bmlLGokiHzdjBjK6iX1uRh+tKZ42io/pR/EdoxFMXrDVHSyH5oocWGnUK52tFkGUjWuL6bV7cm9MWnwPmD2F0fFMsjpaResxw+EQecIOFpTIej/Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=O6/YY5WT; arc=none smtp.client-ip=209.85.222.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="O6/YY5WT" Received: by mail-ua1-f44.google.com with SMTP id a1e0cc1a2514c-966deb3d426so20398241.0 for ; Thu, 18 Jun 2026 15:24:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1781821469; x=1782426269; darn=vger.kernel.org; h=from:mime-version:content-transfer-encoding:cc:to:subject:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=rAA2hZkuHvFrtR0stZ6TkRMfghMbAgM8PaUtOP/ufw0=; b=O6/YY5WTm1aLrWftBHlIMChuQuOmTf3bPlmOyJ6TUsm4uGkxVM3Qg6XxxWo8JifM2R Z/4+2QqRiOGGszqW7v8yKNdZ1aID1K5604n/vE6R129aule9ESkgoWD/cYMnLo/U/qaL QU8c5+c+HGOTs6Nf9jD7AA0WooukyiRRNhzo4qYUBuSGz+BcazP6ZObTyAox+vBUVWsY 0KuhXQQl+Tu5w67fwiKXW+LV/vLvdeEMIeEnXbT3cVSzc0V2p2weZ4p06w+6DX9c+egg DF+Tiy+elf3pLjVh7H08Ze63zQnRp+rc+adQyOWEdA2D+YnimiIzAWUeQZlSL27IIc8w 1iwA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781821469; x=1782426269; h=from:mime-version:content-transfer-encoding:cc:to:subject:date :message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=rAA2hZkuHvFrtR0stZ6TkRMfghMbAgM8PaUtOP/ufw0=; b=oytNdv88g1osfD4O8fvErPz8oQa/6HxoB2u/rW7gkZCwyX2oVd4ZGPOvZc9wCSLZfh zZZ70VW7Kx8cWZBSZ9PXthDRXwM9OKiM4mFQCmboLeqzebaXlM6MTsw7la9AboeVXh7V +rjsOoy9Qn4v5ITynlrtubc6KiPdlv105f/8Yq48kTiRKOOi2wpzgR1iSBHuFVfChlGk 2iARwP3Ww9H7xc3N+snLUoz9Y6h9U/WY9WTIO4Hj9+khRGkf25AhWO2DZnkSna9J1xHQ T0MXPVe4u63Iungv3uzxNk+lOa/qdOxfPvOXr2o1iKELx35954ABxhWUO+vw6qk77rJS TSFg== X-Forwarded-Encrypted: i=1; AFNElJ/HdWyVLdfkN4SFmw6/p0YJEIjZAcTmlsEwcIqjcqY8VOZF+a5Go0FnI1K+aQUsrg+KEH5h+EgcVOZYbQM=@vger.kernel.org X-Gm-Message-State: AOJu0YyvlK6RH444IReiwZi1ETmuWprisQy+8OizhO6UxCzHMuIzX1w9 XIMvYGo9AwZnnUeElNmLbCMuAKwqRzwkn3ixGCNAcpHlzFkb642O+wqH X-Gm-Gg: AfdE7cmFzZ9skdk3yS0TF+E3G0C5AJ9bRnjH0+tdcHhNcKssM/maB8qKBqcRSzPbUy/ dbHPrEkP8axrXdsd1HrHXTdhwIgjBZ18kVe+9DoGTqN7yaBHlSCiPrO25IETL0J+Toaw83fWExs NCdMdQZvAT6KXCMf69EM8L+RzWlmtVbfsRBu4q3eBFvPeHqpN+bncxeujPylWPxdcX5Iikch2sr +IHd6+69X6pelGtdIwTPS95e6r+MGb981Cw1uK/YdE8xTq0xrx6PIybiuPRhZuXuqcf5PphPm89 snRtyNVIEx0hBy2s7oRBctZbQYhsVj+4HQV71alXx60pWFQxceXxu2Unxlo2+2RBTlc/Na91V+p X0a8w6FEss7A7u+J2T8lm1HwDgkbhcxBy3moS2oyRUetbg5TVhcU2LJriS2M09pqqEYCuXSqP+2 43VBJrgtD/32YggqVbRPCPHUFVET1HoIca255zBXuummGR4aATpMpTFQ2iCsSELz77XTlikNQ00 f1//dFs745T X-Received: by 2002:a05:6102:c4e:b0:631:bcfa:39d2 with SMTP id ada2fe7eead31-72a05010417mr378328137.6.1781821469443; Thu, 18 Jun 2026 15:24:29 -0700 (PDT) Received: from [192.168.10.115] ([132.170.207.48]) by smtp.gmail.com with ESMTPSA id a1e0cc1a2514c-966fc4b8192sm549456241.8.2026.06.18.15.24.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jun 2026 15:24:29 -0700 (PDT) Message-ID: <6a34701d.37228aac.151a6a.e114@mx.google.com> Date: Thu, 18 Jun 2026 15:24:29 -0700 (PDT) Subject: invalid opcode in jfs_evict_inode To: shaggy@kernel.org, brauner@kernel.org, penguin-kernel@I-love.SAKURA.ne.jp, lizhi.xu@windriver.com, chentaotao@didiglobal.com, mjguzik@gmail.com, jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org Cc: syzkaller@googlegroups.com, contact@pgazz.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: sanan.hasanou@gmail.com Good day, dear maintainers, We found a bug using a modified version of syzkaller. Kernel Branch: 7.0-rc1 Kernel Config: Unfortunately, we don't have any reproducer for this bug yet. Thank you! Best regards, Sanan Hasanov Oops: invalid opcode: 0000 [#1] SMP KASAN CPU: 0 UID: 0 PID: 9298 Comm: syz-executor Not tainted 7.0.0-rc1 #1 PREEMPT(full) Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:jfs_evict_inode+0x3c5/0x3d0 fs/jfs/inode.c:175 Code: fe e9 28 fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 63 fe ff ff 4c 89 f7 e8 d6 8c f8 fe e9 56 fe ff ff e8 ec c1 8e fe 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 0f 1f 44 00 00 55 48 RSP: 0018:ffffc9000411fa18 EFLAGS: 00010293 RAX: ffffffff83080354 RBX: ffff888026d35560 RCX: ffff88801a9dd700 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000411fa50 R08: ffffffff8ef0f1bf R09: 1ffffffff1de1e37 R10: dffffc0000000000 R11: fffffbfff1de1e38 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888026d35200 R15: ffff888026d35560 FS: 000055555f753500(0000) GS:ffff88809d305000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0923345d58 CR3: 000000004a9e7000 CR4: 00000000000006f0 Call Trace: evict+0x533/0x9e0 fs/inode.c:846 dispose_list fs/inode.c:888 [inline] evict_inodes+0x713/0x7a0 fs/inode.c:942 generic_shutdown_super+0xb2/0x2f0 fs/super.c:632 kill_block_super+0x4d/0xa0 fs/super.c:1725 deactivate_locked_super+0xc1/0x410 fs/super.c:476 deactivate_super+0xb8/0xe0 fs/super.c:509 cleanup_mnt+0x3d9/0x460 fs/namespace.c:1312 __cleanup_mnt+0x22/0x30 fs/namespace.c:1319 task_work_run+0x1d3/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x179/0x510 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x22c/0x8a0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x7f4b1a30556b Code: 3b 16 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b0 ff ff ff f7 d8 RSP: 002b:00007ffc90fb1cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f4b1a3a70ee RCX: 00007f4b1a30556b RDX: 00007f4b1a1b0ea1 RSI: 0000000000000009 RDI: 00007ffc90fb1d90 RBP: 00007ffc90fb1d90 R08: 0000000000000073 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc90fb2e60 R13: 00007f4b1a3a70ee R14: 0000000000000032 R15: 000000000001854e Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jfs_evict_inode+0x3c5/0x3d0 fs/jfs/inode.c:175 Code: fe e9 28 fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 63 fe ff ff 4c 89 f7 e8 d6 8c f8 fe e9 56 fe ff ff e8 ec c1 8e fe 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 0f 1f 44 00 00 55 48 RSP: 0018:ffffc9000411fa18 EFLAGS: 00010293 RAX: ffffffff83080354 RBX: ffff888026d35560 RCX: ffff88801a9dd700 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000411fa50 R08: ffffffff8ef0f1bf R09: 1ffffffff1de1e37 R10: dffffc0000000000 R11: fffffbfff1de1e38 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888026d35200 R15: ffff888026d35560 FS: 000055555f753500(0000) GS:ffff88809d305000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bc0d358110 CR3: 000000004a9e7000 CR4: 00000000000006f0 <<<<<<<<<<<<<<< tail report >>>>>>>>>>>>>>>