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git://git.kernel.o.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=165fe9a2580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f9319a42cfb3bf57 > dashboard link: https://syzkaller.appspot.com/bug?extid=4d9a13f0797c46a29e42 > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14172842580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15b04c34580000 > As usual the repro doesn't repro for me. Let's try [0] as a quick check as upstream doesn't have it yet. [0]:https://lore.kernel.org/all/20250806145611.3962-1-dev.jain@arm.com/ #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-hotfixes-unstable > Downloadable assets: > disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-53e760d8.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/584b4139c7e3/vmlinux-53e760d8.xz > kernel image: https://storage.googleapis.com/syzbot-assets/4d2474607300/bzImage-53e760d8.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+4d9a13f0797c46a29e42@syzkaller.appspotmail.com > > R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000002 > R13: 00007f00d0db5fa0 R14: 00007f00d0db5fa0 R15: 0000000000000005 > > ------------[ cut here ]------------ > WARNING: CPU: 2 PID: 6133 at mm/mremap.c:357 move_normal_pmd mm/mremap.c:357 [inline] > WARNING: CPU: 2 PID: 6133 at mm/mremap.c:357 move_pgt_entry mm/mremap.c:595 [inline] > WARNING: CPU: 2 PID: 6133 at mm/mremap.c:357 move_page_tables+0x3832/0x44a0 mm/mremap.c:852 > Modules linked in: > CPU: 2 UID: 0 PID: 6133 Comm: syz.0.19 Not tainted 6.17.0-rc1-syzkaller-00004-g53e760d89498 #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:move_normal_pmd mm/mremap.c:357 [inline] > RIP: 0010:move_pgt_entry mm/mremap.c:595 [inline] > RIP: 0010:move_page_tables+0x3832/0x44a0 mm/mremap.c:852 > Code: 02 00 0f 85 b6 03 00 00 48 8b 2b 4c 89 f6 48 89 ef e8 e2 1b af ff 49 39 ee 0f 82 d5 cb ff ff e9 0c cc ff ff e8 1f 21 af ff 90 <0f> 0b 90 48 8b 44 24 40 48 8d 78 40 48 b8 00 00 00 00 00 fc ff df > RSP: 0018:ffffc900037a76d8 EFLAGS: 00010293 > RAX: 0000000000000000 RBX: 0000000032930007 RCX: ffffffff820c6645 > RDX: ffff88802e56a440 RSI: ffffffff820c7201 RDI: 0000000000000007 > RBP: ffff888037728fc0 R08: 0000000000000007 R09: 0000000000000000 > R10: 0000000032930007 R11: 0000000000000000 R12: 0000000000000000 > R13: ffffc900037a79a8 R14: 0000000000000001 R15: dffffc0000000000 > FS: 000055556316a500(0000) GS:ffff8880d68bc000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000001b30863fff CR3: 0000000050171000 CR4: 0000000000352ef0 > Call Trace: > > copy_vma_and_data+0x468/0x790 mm/mremap.c:1215 > move_vma+0x548/0x1780 mm/mremap.c:1282 > mremap_to+0x1b7/0x450 mm/mremap.c:1406 > do_mremap+0xfad/0x1f80 mm/mremap.c:1921 > __do_sys_mremap+0x119/0x170 mm/mremap.c:1977 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > RIP: 0033:0x7f00d0b8ebe9 > 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:00007ffe5ea5ee98 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 > RAX: ffffffffffffffda RBX: 00007f00d0db5fa0 RCX: 00007f00d0b8ebe9 > RDX: 0000000000400000 RSI: 0000000000c00000 RDI: 0000200000000000 > RBP: 00007ffe5ea5eef0 R08: 0000200000c00000 R09: 0000000000000000 > R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000002 > R13: 00007f00d0db5fa0 R14: 00007f00d0db5fa0 R15: 0000000000000005 > > > > --- > 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