Hello, syzbot found the following issue on: HEAD commit: 2b84edefcad1 Add linux-next specific files for 20240506 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=16f76404980000 kernel config: https://syzkaller.appspot.com/x/.config?x=b499929e4aaba1af dashboard link: https://syzkaller.appspot.com/bug?extid=30d8503d558f3d50306b compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6a22cf95ee14/disk-2b84edef.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f5c45b515282/vmlinux-2b84edef.xz kernel image: https://storage.googleapis.com/syzbot-assets/9bf98258a662/bzImage-2b84edef.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+30d8503d558f3d50306b@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 16762 at arch/x86/kvm/../../../virt/kvm/kvm_main.c:595 __kvm_handle_hva_range arch/x86/kvm/../../../virt/kvm/kvm_main.c:595 [inline] WARNING: CPU: 0 PID: 16762 at arch/x86/kvm/../../../virt/kvm/kvm_main.c:595 kvm_mmu_notifier_invalidate_range_start+0xa63/0xc10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:787 Modules linked in: CPU: 0 PID: 16762 Comm: syz-executor.1 Not tainted 6.9.0-rc7-next-20240506-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__kvm_handle_hva_range arch/x86/kvm/../../../virt/kvm/kvm_main.c:595 [inline] RIP: 0010:kvm_mmu_notifier_invalidate_range_start+0xa63/0xc10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:787 Code: c6 05 fb 42 8b 0e 01 48 c7 c7 80 be c1 8b be 03 04 00 00 48 c7 c2 20 9f c1 8b e8 b8 a6 66 00 e9 f6 f8 ff ff e8 8e f5 89 00 90 <0f> 0b 90 e9 28 ff ff ff e8 80 f5 89 00 90 0f 0b 90 e9 c9 f6 ff ff RSP: 0018:ffffc9000a29e940 EFLAGS: 00010283 RAX: ffffffff810c23a2 RBX: 0000000020000000 RCX: 0000000000040000 RDX: ffffc9001580a000 RSI: 00000000000039aa RDI: 00000000000039ab RBP: ffffc9000a29eaf0 R08: ffffffff810c1bb6 R09: 0000000000000000 R10: ffffc9000a29ea40 R11: fffff52001453d4d R12: dffffc0000000000 R13: ffffc9000a29ea40 R14: 0000000020000000 R15: 1ffff92001453dc4 FS: 00007f1c65b3f6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0f815a8000 CR3: 00000000201c0000 CR4: 00000000003526f0 DR0: 000000000000e8ca DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: <TASK> mn_hlist_invalidate_range_start mm/mmu_notifier.c:476 [inline] __mmu_notifier_invalidate_range_start+0x45e/0x890 mm/mmu_notifier.c:531 mmu_notifier_invalidate_range_start include/linux/mmu_notifier.h:439 [inline] try_to_unmap_one+0x9a0/0x3290 mm/rmap.c:1664 rmap_walk_file+0x52f/0x9f0 mm/rmap.c:2669 try_to_unmap+0x219/0x2e0 unmap_folio+0x197/0x370 mm/huge_memory.c:2685 split_huge_page_to_list_to_order+0xbf6/0x1cd0 mm/huge_memory.c:3187 split_folio_to_list_to_order include/linux/huge_mm.h:581 [inline] split_folio_to_order include/linux/huge_mm.h:586 [inline] truncate_inode_partial_folio+0x470/0x740 mm/truncate.c:242 shmem_undo_range+0x9a5/0x1df0 mm/shmem.c:1023 shmem_truncate_range mm/shmem.c:1114 [inline] shmem_fallocate+0x497/0x11f0 mm/shmem.c:3117 vfs_fallocate+0x564/0x6c0 fs/open.c:330 madvise_remove mm/madvise.c:1012 [inline] madvise_vma_behavior mm/madvise.c:1036 [inline] madvise_walk_vmas mm/madvise.c:1268 [inline] do_madvise+0x192a/0x44d0 mm/madvise.c:1464 __do_sys_madvise mm/madvise.c:1481 [inline] __se_sys_madvise mm/madvise.c:1479 [inline] __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1479 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1c64e7dca9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1c65b3f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007f1c64fac050 RCX: 00007f1c64e7dca9 RDX: 0000000000000009 RSI: 000000000060000b RDI: 0000000020000000 RBP: 00007f1c64ec947e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f1c64fac050 R15: 00007ffe73a84cc8 </TASK> --- 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@xxxxxxxxxxxxxxxx. 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 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
