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Tue, 27 Aug 2024 10:28:29 -0700 (PDT) Date: Tue, 27 Aug 2024 10:28:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ec6b3f0620ad9124@google.com> Subject: [syzbot] [mm?] BUG: unable to handle kernel paging request in mmap_region From: syzbot To: Liam.Howlett@oracle.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: E4AF340018 X-Stat-Signature: w4cufs6aqmjwtmynompswouan5nkf4c7 X-HE-Tag: 1724779710-693700 X-HE-Meta: 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 MMeDjwzt 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 z5kDyAlI 3k3C7+mSiVl7G4LKMPsnqEbgDIfDioLTPL9YwBa802943zLWRSdUqO44XZ3GSZJ1yB9e6XLpjKTfn/2JRgDNrtB506foZ9zSm7Cp8l/4gH64l74mUiTHVKG/6h3dlhvA7y4KwE0kq2T+1zmr6zBuUTbv6cPKGtLwwDEyjgxpHhgc5C0OVu2Z+NJT1+nXZZ+QlfqJxQhk8iWue2u0umLxhBcUwFlCBTehbCIZZrXgz4ek6ORDBP7iyJoO6ttJKMCW4tzpXOxy3BZI+43UGgRcbhJdt2DgqUKVKoUaRflyBqFrQjB87/dx+g1rnA6SCV9e9V6Xu17pguXiS1OtT7OoXYLPkAZn4kmqrTrkN4kIUKeYhCES6iCB6mIrK0Rm197+ 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: List-Subscribe: List-Unsubscribe: Hello, syzbot found the following issue on: HEAD commit: 94ede2a3e913 profiling: remove stale percpu flip buffer va.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=122f6d9d980000 kernel config: https://syzkaller.appspot.com/x/.config?x=8b0cca2f3880513d dashboard link: https://syzkaller.appspot.com/bug?extid=3bca0d9eb36e75bc36ed 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/e10dde6d5041/disk-94ede2a3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3bda8d01811d/vmlinux-94ede2a3.xz kernel image: https://storage.googleapis.com/syzbot-assets/653dc61d9ae6/bzImage-94ede2a3.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3bca0d9eb36e75bc36ed@syzkaller.appspotmail.com kernel tried to execute NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle page fault for address: ffffea000169a5c0 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0011) - permissions violation PGD 13fff7067 P4D 13fff7067 PUD 13fff6067 PMD 800000013d4001e3 Oops: Oops: 0011 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6910 Comm: syz.0.357 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:0xffffea000169a5c0 Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00 RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286 RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000 RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120 RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98 R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600 R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8 FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0 Call Trace: mmap_region+0x1891/0x2090 mm/mmap.c:3058 do_mmap+0x8f9/0x1010 mm/mmap.c:1468 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514 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: 0033:0x7f3200977299 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:00007f32016ce048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f3200b06058 RCX: 00007f3200977299 RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000 RBP: 00007f32009e48e6 R08: 0000000000000012 R09: 0000000000000000 R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f3200b06058 R15: 00007ffebfee75d8 Modules linked in: CR2: ffffea000169a5c0 ---[ end trace 0000000000000000 ]--- RIP: 0010:0xffffea000169a5c0 Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00 RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286 RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000 RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120 RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98 R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600 R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8 FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0 --- 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 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