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FyUs3l5PLpGPOPJaVC0m6wwXfd6eZO4wBcz1hzrtaRF8pGskKU+tWnMsA10oD64zs3CP4arX7ZkCckwCoKy8fM/yXrZYLQdqqwrXmlzzAOKaB9/kzgLRdfRU57QfZHyTzHhCv+39hCkoQnbM+s/vI8kep2yaJFHzW806UmRESFr76ziYLDnvWdmUCWhx5HDZwVSyvDEElPC/q0yyicYbj/Rk+XOoBmnHjP3kv0ZOXxiDsrxFRPHxCEwI3D9HGQe0AZrSZoSFSQq89zVu+a9IBE0RRhePffhXynJ5avCARNQ2r8bzeL1SyYZ8sJQiDhJBEg0Ud8PfxzytgALpGM1e0wPTr3q5qXuWKbhlNnOKk00= 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: a053fd3ca5d1 Add linux-next specific files for 20240409 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12926699180000 kernel config: https://syzkaller.appspot.com/x/.config?x=cef4d00cd7fe38ca dashboard link: https://syzkaller.appspot.com/bug?extid=4b8077a5fccc61c385a1 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=16f40ba9180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/16fbf27c5977/disk-a053fd3c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cac2847d6c46/vmlinux-a053fd3c.xz kernel image: https://storage.googleapis.com/syzbot-assets/c4f6c7891071/bzImage-a053fd3c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4b8077a5fccc61c385a1@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5385 at mm/hugetlb_cgroup.c:350 __hugetlb_cgroup_uncharge_folio+0x346/0x450 mm/hugetlb_cgroup.c:350 Modules linked in: CPU: 1 PID: 5385 Comm: syz-executor.2 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__hugetlb_cgroup_uncharge_folio+0x346/0x450 mm/hugetlb_cgroup.c:350 Code: 89 df e8 dd 27 f6 ff 4c 89 33 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 12 4e 91 ff eb e6 e8 0b 4e 91 ff 90 <0f> 0b 90 e9 3c fd ff ff 48 c7 c1 bc 18 ac 8f 80 e1 07 80 c1 03 38 RSP: 0018:ffffc90004aa7238 EFLAGS: 00010293 RAX: ffffffff8204d6f5 RBX: 0000000000000000 RCX: ffff88801177da00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8204d426 R09: 1ffffffff25ed8d2 R10: dffffc0000000000 R11: fffffbfff25ed8d3 R12: 0000000000000001 R13: ffffea0001a68000 R14: ffff88807b4fa000 R15: dffffc0000000000 FS: 00007f1822b7f6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555568f05938 CR3: 000000007dcee000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: alloc_hugetlb_folio+0x1638/0x1970 mm/hugetlb.c:3252 hugetlb_mfill_atomic_pte+0xcad/0x1aa0 mm/hugetlb.c:6748 mfill_atomic_hugetlb mm/userfaultfd.c:600 [inline] mfill_atomic mm/userfaultfd.c:772 [inline] mfill_atomic_copy+0x13f0/0x1a50 mm/userfaultfd.c:868 userfaultfd_copy fs/userfaultfd.c:1724 [inline] userfaultfd_ioctl+0x2950/0x7160 fs/userfaultfd.c:2123 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x72/0x7a RIP: 0033:0x7f1821e7de69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1822b7f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1821fabf80 RCX: 00007f1821e7de69 RDX: 0000000020000080 RSI: 00000000c028aa03 RDI: 0000000000000006 RBP: 00007f1821eca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f1821fabf80 R15: 00007ffe6f6b2888 --- 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