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Fri, 14 Apr 2023 12:56:41 -0700 (PDT) Date: Fri, 14 Apr 2023 12:56:41 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000063ec4705f9513d4f@google.com> Subject: [syzbot] [mm?] WARNING in unmap_page_range From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 0F377140011 X-Stat-Signature: dfpkyik3edehwjatc18m1b3iztnc3gnx X-HE-Tag: 1681502201-425063 X-HE-Meta: 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 rGHK9pEy 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 OwLLfK8q 27wJ3W7yShpko5xVgq+Tfbw7LiAjx70ehla6/Ppz+t663qAqBUCpbCcN+rWBZQs4FCBsws0M8Ij4RcAKKNHfoWroUMYDmnRBeyLwN8hzBgUijBmRwjx2GTA2kYhSXrBapYVzQYSTqyMlvOU2J7EgKBDmJcdQYt9cqxfGrwnEStmyiiKlamX8eNFiDH5OMsVMwcCztrjT8jsSZPEc7RhJdoN/INkZYxYxP5OjDCJ5wGc0EMzXP4jVgIIbe2rbqVVr/CwY9ah8IlxORMu5OehrnKsmu/WBYbYt1Op8DQWX+gr3kirpZxwtu6I3+Hij3u3+ X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot found the following issue on: HEAD commit: e134c93f788f Add linux-next specific files for 20230406 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=13b57c17c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=7a0548c6ce6e9842 dashboard link: https://syzkaller.appspot.com/bug?extid=78c74557d14e8d51e013 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b617d686938d/disk-e134c93f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3ac3406cd427/vmlinux-e134c93f.xz kernel image: https://storage.googleapis.com/syzbot-assets/6b08a19acadb/bzImage-e134c93f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+78c74557d14e8d51e013@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_pte_range mm/memory.c:1491 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_pmd_range mm/memory.c:1564 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_pud_range mm/memory.c:1593 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 zap_p4d_range mm/memory.c:1614 [inline] WARNING: CPU: 1 PID: 24899 at mm/memory.c:1491 unmap_page_range+0x1c07/0x39b0 mm/memory.c:1635 Modules linked in: CPU: 1 PID: 24899 Comm: syz-executor.0 Not tainted 6.3.0-rc5-next-20230406-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:zap_pte_range mm/memory.c:1491 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1564 [inline] RIP: 0010:zap_pud_range mm/memory.c:1593 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1614 [inline] RIP: 0010:unmap_page_range+0x1c07/0x39b0 mm/memory.c:1635 Code: 83 fb 02 0f 86 ff 0c 00 00 e8 85 4b c2 ff 44 89 e6 bf 1f 00 00 00 e8 98 47 c2 ff 41 83 fc 1f 0f 84 38 0e 00 00 e8 69 4b c2 ff <0f> 0b e9 da ef ff ff e8 5d 4b c2 ff 4c 89 e5 31 ff 4c 89 e3 81 e5 RSP: 0018:ffffc90004ef76f8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000000 RDX: ffff8880829f0000 RSI: ffffffff81c10c67 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000001f R13: 0000000020679000 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33523000 CR3: 000000007b6c6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unmap_single_vma+0x19a/0x2b0 mm/memory.c:1681 unmap_vmas+0x234/0x380 mm/memory.c:1720 exit_mmap+0x190/0x930 mm/mmap.c:3063 __mmput+0x13a/0x540 kernel/fork.c:1344 mmput+0x60/0x70 kernel/fork.c:1366 exit_mm kernel/exit.c:564 [inline] do_exit+0x9d7/0x29f0 kernel/exit.c:858 do_group_exit+0xd4/0x2a0 kernel/exit.c:1021 get_signal+0x2315/0x25b0 kernel/signal.c:2859 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:307 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f80caa8c169 Code: Unable to access opcode bytes at 0x7f80caa8c13f. RSP: 002b:00007f80c95fe218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f80cababf88 RCX: 00007f80caa8c169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f80cababf88 RBP: 00007f80cababf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f80cababf8c R13: 00007ffc884fac6f R14: 00007f80c95fe300 R15: 0000000000022000 --- 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.