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ct239CAHMqwdNPvPXlqW6ALxHZ+dhfuOXpUbemr+I49g0eipw6IigMMvRvIJBxPy6jKP4NJkYOOpD8VYlNxiYqRl8l1x5O4396godosI2a/qzisvmdpTPFfowj0p/Fo+xyUYTkRKd9FNb9tv0qQmsYDGfSnG0NeRBD5QMgXT3vuUWfqLBSck7WnthyF6t8V54NtqhpUGxQoYXuoiHGVLfq9jnLJ3rga8Jz3DzF/jGHHTNs2aOxqnqSWNeFAVQp67sxNNffVJwAAP/WV45uGnOE1hX2uTvtjFf19BZ8pjSJ2rQTr2Pc1x+UnXRZFsVALt+DiursgVrJdlg98Q8T1wYruUkBeM41taNU2o9qtwM70= 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: 4eab35893071 Add linux-next specific files for 20240417 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=1727a61b180000 kernel config: https://syzkaller.appspot.com/x/.config?x=27920e47287645ff dashboard link: https://syzkaller.appspot.com/bug?extid=d8426b591c36b21c750e compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=156da22d180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=163dfec7180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/9f7d6c097fb4/disk-4eab3589.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/287b16352982/vmlinux-4eab3589.xz kernel image: https://storage.googleapis.com/syzbot-assets/23839c65c573/bzImage-4eab3589.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d8426b591c36b21c750e@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5084 at mm/page_table_check.c:199 __page_table_check_pte mm/page_table_check.c:199 [inline] WARNING: CPU: 0 PID: 5084 at mm/page_table_check.c:199 __page_table_check_ptes_set+0x1db/0x420 mm/page_table_check.c:213 Modules linked in: CPU: 0 PID: 5084 Comm: syz-executor382 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__page_table_check_pte mm/page_table_check.c:199 [inline] RIP: 0010:__page_table_check_ptes_set+0x1db/0x420 mm/page_table_check.c:213 Code: 48 8b 7c 24 40 48 c7 c6 80 19 46 8e e8 ee df 8e ff 41 83 fc 1d 74 18 41 83 fc 1a 75 1d e8 5d da 8e ff eb 10 e8 56 da 8e ff 90 <0f> 0b 90 eb 10 e8 4b da 8e ff 90 0f 0b 90 eb 05 e8 40 da 8e ff 48 RSP: 0018:ffffc9000366f740 EFLAGS: 00010293 RAX: ffffffff8207833a RBX: ffffc9000366f7c0 RCX: ffff888022af3c00 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 RBP: ffffc9000366f830 R08: ffffffff820782af R09: 1ffffd40000a6a10 R10: dffffc0000000000 R11: fffff940000a6a11 R12: 0000000000000000 R13: 0000000014d42c67 R14: 0000000000000001 R15: 0000000000000000 FS: 0000555567f79380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000066c7e0 CR3: 0000000078cb0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: page_table_check_ptes_set include/linux/page_table_check.h:74 [inline] set_ptes include/linux/pgtable.h:267 [inline] __ptep_modify_prot_commit include/linux/pgtable.h:1269 [inline] ptep_modify_prot_commit include/linux/pgtable.h:1302 [inline] change_pte_range mm/mprotect.c:194 [inline] change_pmd_range mm/mprotect.c:424 [inline] change_pud_range mm/mprotect.c:457 [inline] change_p4d_range mm/mprotect.c:480 [inline] change_protection_range mm/mprotect.c:508 [inline] change_protection+0x2770/0x3cc0 mm/mprotect.c:542 mprotect_fixup+0x740/0xa90 mm/mprotect.c:655 do_mprotect_pkey+0x90d/0xe00 mm/mprotect.c:820 __do_sys_mprotect mm/mprotect.c:841 [inline] __se_sys_mprotect mm/mprotect.c:838 [inline] __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:838 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: 0033:0x7f45514bf429 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe52191598 EFLAGS: 00000246 ORIG_RAX: 000000000000000a RAX: ffffffffffffffda RBX: 00007ffe52191768 RCX: 00007f45514bf429 RDX: 000000000000000f RSI: 0000000000004000 RDI: 0000000020ffc000 RBP: 00007f4551532610 R08: 00007ffe52191768 R09: 00007ffe52191768 R10: 00007ffe52191768 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe52191758 R14: 0000000000000001 R15: 0000000000000001 --- 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