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https://syzkaller.appspot.com/x/repro.c?x=13f2c4fe980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b45273014a8f/disk-83a7eefe.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/94cd5708292e/vmlinux-83a7eefe.xz kernel image: https://storage.googleapis.com/syzbot-assets/a89698812e8b/bzImage-83a7eefe.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/2b8f6b18fd8a/mount_0.gz The issue was bisected to: commit 03ef80b469d5d83530ce1ce15be78a40e5300f9b Author: Kent Overstreet Date: Sat Sep 23 22:41:51 2023 +0000 bcachefs: Ignore unknown mount options bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1538cd96980000 final oops: https://syzkaller.appspot.com/x/report.txt?x=1738cd96980000 console output: https://syzkaller.appspot.com/x/log.txt?x=1338cd96980000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9757fdbdabd69eae08ad@syzkaller.appspotmail.com Fixes: 03ef80b469d5 ("bcachefs: Ignore unknown mount options") ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5079 at mm/page_alloc.c:4654 __alloc_pages_noprof+0x36a/0x6c0 mm/page_alloc.c:4654 Modules linked in: CPU: 0 PID: 5079 Comm: syz-executor354 Not tainted 6.10.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__alloc_pages_noprof+0x36a/0x6c0 mm/page_alloc.c:4654 Code: a9 00 00 08 00 0f 85 12 01 00 00 44 89 e9 81 e1 7f ff ff ff a9 00 00 04 00 44 0f 45 e9 e9 02 01 00 00 c6 05 82 e5 aa 0d 01 90 <0f> 0b 90 83 fb 0a 0f 86 6c fd ff ff 45 31 ed 48 c7 44 24 20 0e 36 RSP: 0018:ffffc900032feea0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000013 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900032fef28 RBP: ffffc900032fefb8 R08: ffffc900032fef27 R09: 0000000000000000 R10: ffffc900032fef00 R11: fffff5200065fde5 R12: 1ffff9200065fddc R13: 0000000000040dc0 R14: dffffc0000000000 R15: 1ffff9200065fdd8 FS: 0000555582725380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 00000000779b6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __alloc_pages_node_noprof include/linux/gfp.h:269 [inline] alloc_pages_node_noprof include/linux/gfp.h:296 [inline] __kmalloc_large_node+0x8b/0x1d0 mm/slub.c:4067 __do_kmalloc_node mm/slub.c:4110 [inline] __kmalloc_noprof+0x2aa/0x400 mm/slub.c:4135 kmalloc_noprof include/linux/slab.h:664 [inline] kzalloc_noprof include/linux/slab.h:778 [inline] bch2_ioctl_fs_usage fs/bcachefs/chardev.c:517 [inline] bch2_fs_ioctl+0xf67/0x37d0 fs/bcachefs/chardev.c:889 bch2_fs_file_ioctl+0x827/0x27a0 fs/bcachefs/fs-ioctl.c:539 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 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: 0033:0x7f142b4429b9 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:00007fff3b1922b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fff3b192498 RCX: 00007f142b4429b9 RDX: 0000000020000000 RSI: 00000000c040bc0b RDI: 0000000000000004 RBP: 00007f142b4c8610 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff3b192488 R14: 0000000000000001 R15: 0000000000000001 --- 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. For information about bisection process see: https://goo.gl/tpsmEJ#bisection 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