handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x94/0x170 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1458 [inline] free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1508 free_unref_page_prepare mm/page_alloc.c:3386 [inline] free_unref_page+0x19/0x4d0 mm/page_alloc.c:3482 io_mem_free.part.0+0xb0/0xb9 io_uring/io_uring.c:2463 io_mem_free io_uring/io_uring.c:2458 [inline] io_ring_ctx_free io_uring/io_uring.c:2628 [inline] io_ring_exit_work+0xa70/0xc2e io_uring/io_uring.c:2789 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1030 at mm/huge_memory.c:2465 __split_huge_page_tail mm/huge_memory.c:2465 [inline] WARNING: CPU: 0 PID: 1030 at mm/huge_memory.c:2465 __split_huge_page mm/huge_memory.c:2527 [inline] WARNING: CPU: 0 PID: 1030 at mm/huge_memory.c:2465 split_huge_page_to_list+0x3586/0x4530 mm/huge_memory.c:2756 Modules linked in: CPU: 0 PID: 1030 Comm: syz-executor.3 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:__split_huge_page_tail mm/huge_memory.c:2465 [inline] RIP: 0010:__split_huge_page mm/huge_memory.c:2527 [inline] RIP: 0010:split_huge_page_to_list+0x3586/0x4530 mm/huge_memory.c:2756 Code: e0 e3 af ff 45 84 f6 0f 85 3c dc ff ff e8 42 e7 af ff 48 8b 7c 24 08 48 c7 c6 00 90 fa 89 e8 e1 5a e6 ff c6 05 6a b2 ff 0b 01 <0f> 0b e9 18 dc ff ff e8 1e e7 af ff 4c 8b 7c 24 08 31 ff 4c 89 fd RSP: 0018:ffffc90015687560 EFLAGS: 00010046 RAX: 0000000000040000 RBX: ffffea0000cc0000 RCX: ffffc9000ee82000 RDX: 0000000000040000 RSI: ffffffff81ccb54f RDI: ffffffff8de21a10 RBP: ffffea0000cc0a00 R08: 0000000000000000 R09: ffffffff8de21a17 R10: 0000000000000000 R11: 6f72665f74657220 R12: ffffea0000cc0a08 R13: ffffea0000cc0a28 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0063) knlGS:00000000f7fc0b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f734a1b0 CR3: 000000002e048000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: split_huge_page include/linux/huge_mm.h:188 [inline] madvise_cold_or_pageout_pte_range+0x5c4/0x37d0 mm/madvise.c:373 walk_pmd_range mm/pagewalk.c:128 [inline] walk_pud_range mm/pagewalk.c:205 [inline] walk_p4d_range mm/pagewalk.c:240 [inline] walk_pgd_range+0xa30/0x1670 mm/pagewalk.c:277 __walk_page_range+0x4e9/0x5e0 mm/pagewalk.c:379 walk_page_range+0x30d/0x4a0 mm/pagewalk.c:477 madvise_pageout_page_range mm/madvise.c:552 [inline] madvise_pageout+0x2f1/0x4f0 mm/madvise.c:589 madvise_vma_behavior+0xc7f/0x1cc0 mm/madvise.c:1011 madvise_walk_vmas+0x1c7/0x2b0 mm/madvise.c:1240 do_madvise.part.0+0x24a/0x340 mm/madvise.c:1419 do_madvise mm/madvise.c:1432 [inline] __do_sys_madvise mm/madvise.c:1432 [inline] __se_sys_madvise mm/madvise.c:1430 [inline] __ia32_sys_madvise+0x115/0x150 mm/madvise.c:1430 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fc5549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7fc05cc EFLAGS: 00000296 ORIG_RAX: 00000000000000db RAX: ffffffffffffffda RBX: 00000000200b3000 RCX: 0000000000004000 RDX: 0000000000000015 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi