__kernel_write_iter+0x262/0x730 fs/read_write.c:517 __kernel_write fs/read_write.c:537 [inline] kernel_write fs/read_write.c:558 [inline] kernel_write+0x1c1/0x670 fs/read_write.c:548 process_sysctl_arg+0x233/0x480 fs/proc/proc_sysctl.c:1886 parse_one kernel/params.c:154 [inline] parse_args+0x475/0x8a0 kernel/params.c:189 do_sysctl_args+0xc7/0x130 fs/proc/proc_sysctl.c:1918 kernel_init+0x73/0x1d0 init/main.c:1545 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 page_owner free stack trace missing ------------[ cut here ]------------ kernel BUG at mm/hugetlb.c:1865! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 13258 Comm: syz-executor.5 Not tainted 6.2.0-rc4-next-20230120-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:free_huge_page+0xa5b/0xe80 mm/hugetlb.c:1865 Code: 0f 0b e8 88 ab b7 ff 4c 89 e7 e8 00 3e f7 ff 89 c3 e9 a0 f9 ff ff e8 74 ab b7 ff 48 c7 c6 a0 6f 59 8a 4c 89 e7 e8 55 8b ef ff <0f> 0b e8 5e ab b7 ff 48 8d 7b 17 48 b8 00 00 00 00 00 fc ff df 4c RSP: 0018:ffffc9000ac37908 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc9000c823000 RDX: 0000000000040000 RSI: ffffffff81ca4e7b RDI: 0000000000000000 RBP: ffffffff91c42c78 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffea0000488000 R13: ffffea0000488090 R14: 0000000000000000 R15: ffffea0000488034 FS: 00007ff4709fe700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002026c000 CR3: 000000002a72b000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __folio_put_large mm/swap.c:119 [inline] __folio_put+0x109/0x140 mm/swap.c:127 folio_put include/linux/mm.h:1203 [inline] put_page+0x21b/0x280 include/linux/mm.h:1272 hugetlb_fault+0x153e/0x23f0 mm/hugetlb.c:6130 follow_hugetlb_page+0x6ab/0x1e40 mm/hugetlb.c:6524 __get_user_pages+0x29b/0xfc0 mm/gup.c:1125 populate_vma_page_range+0x241/0x320 mm/gup.c:1526 __mm_populate+0x105/0x3b0 mm/gup.c:1640 do_mlock+0x370/0x6d0 mm/mlock.c:608 __do_sys_mlock mm/mlock.c:616 [inline] __se_sys_mlock mm/mlock.c:614 [inline] __x64_sys_mlock+0x59/0x80 mm/mlock.c:614 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff471e8c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff4709fe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000095 RAX: ffffffffffffffda RBX: 00007ff471fabf80 RCX: 00007ff471e8c0c9 RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020308000 RBP: 00007ff471ee7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbe445a3f R14: 00007ff4709fe300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:free_huge_page+0xa5b/0xe80 mm/hugetlb.c:1865 Code: 0f 0b e8 88 ab b7 ff 4c 89 e7 e8 00 3e f7 ff 89 c3 e9 a0 f9 ff ff e8 74 ab b7 ff 48 c7 c6 a0 6f 59 8a 4c 89 e7 e8 55 8b ef ff <0f> 0b e8 5e ab b7 ff 48 8d 7b 17 48 b8 00 00 00 00 00 fc ff df 4c RSP: 0018:ffffc9000ac37908 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc9000c823000 RDX: 0000000000040000 RSI: ffffffff81ca4e7b RDI: 0000000000000000 RBP: ffffffff91c42c78 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffea0000488000 R13: ffffea0000488090 R14: 0000000000000000 R15: ffffea0000488034 FS: 00007ff4709fe700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002026c000 CR3: 000000002a72b000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400