Hello, syzbot found the following issue on: HEAD commit: 34afb82a3c67 Merge tag '6.10-rc6-smb3-server-fixes' of git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16ff8441980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3456bae478301dc8 dashboard link: https://syzkaller.appspot.com/bug?extid=29f7252ab8a82a688b5d compiler: gcc (Debian 12.2.0-14) 12.2.0, 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/c2c5f697ee8f/disk-34afb82a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2aaaa729806e/vmlinux-34afb82a.xz kernel image: https://storage.googleapis.com/syzbot-assets/3571e3d3b366/bzImage-34afb82a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+29f7252ab8a82a688b5d@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ kernel BUG at mm/hugetlb.c:1130! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 21140 Comm: syz.3.4250 Not tainted 6.10.0-rc7-syzkaller-00012-g34afb82a3c67 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:resv_map_release mm/hugetlb.c:1130 [inline] RIP: 0010:resv_map_release+0x1f3/0x290 mm/hugetlb.c:1115 Code: a9 ff 48 85 db 75 1d e8 4b af a9 ff 48 8b 7c 24 08 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 23 19 fb ff e8 2e af a9 ff 90 <0f> 0b 4c 89 ef e8 d3 72 05 00 e9 3d ff ff ff 48 89 ef e8 d6 71 05 RSP: 0018:ffffc90002d5f928 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81e4353b RDX: ffff888029391e00 RSI: ffffffff81e43562 RDI: 0000000000000007 RBP: ffff88802e217860 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88802e217860 R13: ffff88802e217860 R14: ffff8880223b5e08 R15: dead000000000100 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555587202808 CR3: 0000000069194000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> kref_put include/linux/kref.h:65 [inline] hugetlb_vm_op_close+0x4ef/0x5d0 mm/hugetlb.c:5233 remove_vma+0x8b/0x180 mm/mmap.c:141 exit_mmap+0x4d4/0xb20 mm/mmap.c:3365 __mmput+0x12a/0x4d0 kernel/fork.c:1346 mmput+0x62/0x70 kernel/fork.c:1368 exit_mm kernel/exit.c:567 [inline] do_exit+0x9b7/0x2ba0 kernel/exit.c:863 do_group_exit+0xd3/0x2a0 kernel/exit.c:1025 get_signal+0x2616/0x2710 kernel/signal.c:2909 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1a21f75bd9 Code: Unable to access opcode bytes at 0x7f1a21f75baf. RSP: 002b:00007f1a22c850f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f1a22104040 RCX: 00007f1a21f75bd9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1a22104040 RBP: 00007f1a22104038 R08: 00007f1a22c856c0 R09: 00007f1a22c856c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1a22104044 R13: 000000000000006e R14: 00007ffd0fcf9b50 R15: 00007ffd0fcf9c38 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:resv_map_release mm/hugetlb.c:1130 [inline] RIP: 0010:resv_map_release+0x1f3/0x290 mm/hugetlb.c:1115 Code: a9 ff 48 85 db 75 1d e8 4b af a9 ff 48 8b 7c 24 08 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 23 19 fb ff e8 2e af a9 ff 90 <0f> 0b 4c 89 ef e8 d3 72 05 00 e9 3d ff ff ff 48 89 ef e8 d6 71 05 RSP: 0018:ffffc90002d5f928 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81e4353b RDX: ffff888029391e00 RSI: ffffffff81e43562 RDI: 0000000000000007 RBP: ffff88802e217860 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88802e217860 R13: ffff88802e217860 R14: ffff8880223b5e08 R15: dead000000000100 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020067000 CR3: 00000000669cc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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@xxxxxxxxxxxxxxxx. 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