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linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, riel@surriel.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: mco977pbxbtixic1q6xfhu31ta7qwxds X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: ED24240008 X-Rspam-User: X-HE-Tag: 1766467398-24725 X-HE-Meta: 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https://syzkaller.appspot.com/bug?extid=b165fc2e11771c66d8ba compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11998b1a580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=128cdb1a580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-9094662f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/5bec9d32a91c/vmlinux-9094662f.xz kernel image: https://storage.googleapis.com/syzbot-assets/3df82e1a3cec/bzImage-9094662f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b165fc2e11771c66d8ba@syzkaller.appspotmail.com handle_mm_fault+0x3fe/0xad0 mm/memory.c:6580 do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 ------------[ cut here ]------------ WARNING: ./include/linux/rmap.h:462 at __folio_rmap_sanity_checks include/linux/rmap.h:462 [inline], CPU#1: syz.0.18/6090 WARNING: ./include/linux/rmap.h:462 at __folio_remove_rmap mm/rmap.c:1663 [inline], CPU#1: syz.0.18/6090 WARNING: ./include/linux/rmap.h:462 at folio_remove_rmap_ptes+0xc27/0xfb0 mm/rmap.c:1779, CPU#1: syz.0.18/6090 Modules linked in: CPU: 1 UID: 0 PID: 6090 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__folio_rmap_sanity_checks include/linux/rmap.h:462 [inline] RIP: 0010:__folio_remove_rmap mm/rmap.c:1663 [inline] RIP: 0010:folio_remove_rmap_ptes+0xc27/0xfb0 mm/rmap.c:1779 Code: 00 e9 49 f4 ff ff e8 a8 35 aa ff e8 c3 55 17 ff e9 98 fc ff ff e8 99 35 aa ff 48 c7 c6 80 b7 9c 8b 4c 89 e7 e8 8a 12 f5 ff 90 <0f> 0b 90 e9 5a f6 ff ff e8 7c 35 aa ff 48 8b 54 24 10 48 b8 00 00 RSP: 0018:ffffc90003f5f260 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffea0001417f80 RCX: ffffc90003f5f144 RDX: ffff88803368c980 RSI: ffffffff8214b106 RDI: ffff88803368ce04 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: ffff88803368d4b0 R12: ffffea0001417f80 R13: ffff888030c90500 R14: 0000000000000000 R15: ffff888012660660 FS: 00007f98fd3fe6c0(0000) GS:ffff8880d69f5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f98fd3ddd58 CR3: 000000003661c000 CR4: 0000000000352ef0 Call Trace: zap_present_folio_ptes mm/memory.c:1650 [inline] zap_present_ptes mm/memory.c:1708 [inline] do_zap_pte_range mm/memory.c:1810 [inline] zap_pte_range mm/memory.c:1854 [inline] zap_pmd_range mm/memory.c:1946 [inline] zap_pud_range mm/memory.c:1975 [inline] zap_p4d_range mm/memory.c:1996 [inline] unmap_page_range+0x1b7d/0x43c0 mm/memory.c:2017 unmap_single_vma+0x153/0x240 mm/memory.c:2059 unmap_vmas+0x218/0x470 mm/memory.c:2101 vms_clear_ptes+0x419/0x790 mm/vma.c:1231 vms_complete_munmap_vmas+0x1ca/0x970 mm/vma.c:1280 do_vmi_align_munmap+0x446/0x7e0 mm/vma.c:1539 do_vmi_munmap+0x204/0x3e0 mm/vma.c:1587 do_munmap+0xb6/0xf0 mm/mmap.c:1065 mremap_to+0x236/0x450 mm/mremap.c:1378 remap_move mm/mremap.c:1890 [inline] do_mremap+0x13a8/0x2020 mm/mremap.c:1933 __do_sys_mremap+0x119/0x170 mm/mremap.c:1997 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f98fdd8f7c9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f98fd3fe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 RAX: ffffffffffffffda RBX: 00007f98fdfe5fa0 RCX: 00007f98fdd8f7c9 RDX: 0000000000004000 RSI: 0000000000004000 RDI: 0000200000ffc000 RBP: 00007f98fde13f91 R08: 0000200000002000 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f98fdfe6038 R14: 00007f98fdfe5fa0 R15: 00007ffd69c60518 --- 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