From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 A5169383 for ; Sat, 16 Nov 2024 04:03:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731729812; cv=none; b=XFidKOdcsTSC+S9Kk19mhJzfeuUxvIErKbzb/ATF9JikLEyH+6zFcQiJ9YLUYb8T0Zj/mbL4b3gg0YnrQDbdReKr9alXNozeTirV8A2NJGNYaU3XIs1KfIPY3x0NnQcMvnxAXyczPl2+uUDdFO5Hvsc1PJdNnBQNkhuYUHcexBo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731729812; c=relaxed/simple; bh=Xch8GfihzBFvr239EZp64JgKknhHnufeNl4rkqWy+yw=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; 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List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a89:b0:3a5:e532:799d with SMTP id e9e14a558f8ab-3a74800f3efmr63010405ab.3.1731729809839; Fri, 15 Nov 2024 20:03:29 -0800 (PST) Date: Fri, 15 Nov 2024 20:03:29 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67381991.050a0220.57553.0045.GAE@google.com> Subject: [syzbot] [jfs?] general protection fault in jfs_error (2) From: syzbot To: jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2d5404caa8c7 Linux 6.12-rc7 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1772fe30580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d2aeec8c0b2e420c dashboard link: https://syzkaller.appspot.com/bug?extid=5f0d7af0e45fae10edd1 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17b2f4e8580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=119f7ea7980000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-2d5404ca.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c68277f7b0f1/vmlinux-2d5404ca.xz kernel image: https://storage.googleapis.com/syzbot-assets/161b075483b1/bzImage-2d5404ca.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/6b6a26f0435b/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5f0d7af0e45fae10edd1@syzkaller.appspotmail.com ERROR: (device loop0): remounting filesystem as read-only ERROR: (device loop0): dbFindCtl: Corrupt dmapctl page jfs_create: dtInsert returned -EIO ERROR: (device (efault)): jfs_create: Oops: general protection fault, probably for non-canonical address 0xdffffc000000000a: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057] CPU: 0 UID: 0 PID: 5313 Comm: syz-executor116 Not tainted 6.12.0-rc7-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:sb_rdonly include/linux/fs.h:2292 [inline] RIP: 0010:jfs_handle_error fs/jfs/super.c:66 [inline] RIP: 0010:jfs_error+0x159/0x2e0 fs/jfs/super.c:98 Code: 08 48 c7 c7 40 e9 42 8c 48 89 74 24 08 4c 89 f9 e8 4c 22 9c 08 4d 8d 65 50 4d 89 e7 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 e7 e8 48 5e d6 fe 49 8b 1c 24 48 89 de RSP: 0018:ffffc9000ce4fa20 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 1c32466592978100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000ce4fb30 R08: ffffffff8174a13c R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 0000000000000050 R13: 0000000000000000 R14: 1ffff920019c9f4c R15: 000000000000000a FS: 0000555595511380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fdcfd20000 CR3: 0000000043170000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jfs_create+0x81d/0xbb0 fs/jfs/namei.c:140 vfs_create+0x23c/0x3d0 fs/namei.c:3294 do_mknodat+0x447/0x5b0 fs/namei.c:4185 __do_sys_mknod fs/namei.c:4218 [inline] __se_sys_mknod fs/namei.c:4216 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4216 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f17ac91d9f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff56943258 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007fff56943428 RCX: 00007f17ac91d9f9 RDX: 0000000000000701 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f17ac996610 R08: 0000000020000000 R09: 00007fff56943428 R10: 00007fff56943120 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff56943418 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:sb_rdonly include/linux/fs.h:2292 [inline] RIP: 0010:jfs_handle_error fs/jfs/super.c:66 [inline] RIP: 0010:jfs_error+0x159/0x2e0 fs/jfs/super.c:98 Code: 08 48 c7 c7 40 e9 42 8c 48 89 74 24 08 4c 89 f9 e8 4c 22 9c 08 4d 8d 65 50 4d 89 e7 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 e7 e8 48 5e d6 fe 49 8b 1c 24 48 89 de RSP: 0018:ffffc9000ce4fa20 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 1c32466592978100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc9000ce4fb30 R08: ffffffff8174a13c R09: 1ffff11003f8519a R10: dffffc0000000000 R11: ffffed1003f8519b R12: 0000000000000050 R13: 0000000000000000 R14: 1ffff920019c9f4c R15: 000000000000000a FS: 0000555595511380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fdcfd20000 CR3: 0000000043170000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 08 48 c7 or %cl,-0x39(%rax) 3: c7 40 e9 42 8c 48 89 movl $0x89488c42,-0x17(%rax) a: 74 24 je 0x30 c: 08 4c 89 f9 or %cl,-0x7(%rcx,%rcx,4) 10: e8 4c 22 9c 08 call 0x89c2261 15: 4d 8d 65 50 lea 0x50(%r13),%r12 19: 4d 89 e7 mov %r12,%r15 1c: 49 c1 ef 03 shr $0x3,%r15 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 41 80 3c 07 00 cmpb $0x0,(%r15,%rax,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 e7 mov %r12,%rdi 34: e8 48 5e d6 fe call 0xfed65e81 39: 49 8b 1c 24 mov (%r12),%rbx 3d: 48 89 de mov %rbx,%rsi --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup