------------[ cut here ]------------ WARNING: mm/page_alloc.c:5186 at __alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5186, CPU#0: syz.1.7391/1807 Modules linked in: CPU: 0 UID: 0 PID: 1807 Comm: syz.1.7391 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5186 Code: 74 10 4c 89 e7 89 54 24 0c e8 e4 b0 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 85 31 51 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24 RSP: 0018:ffffc900048c77c0 EFLAGS: 00010246 RAX: ffffc900048c7800 RBX: 0000000000000013 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900048c7828 RBP: ffffc900048c78a8 R08: ffffc900048c7827 R09: 0000000000000000 R10: ffffc900048c7800 R11: fffff52000918f05 R12: 0000000000000000 R13: 1ffff92000918efc R14: 0000000000040cc0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88812604a000(0063) knlGS:00000000f542db40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002ee19ff8 CR3: 000000009577a000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2486 ___kmalloc_large_node+0x4e/0x150 mm/slub.c:5593 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5624 __do_kmalloc_node mm/slub.c:5640 [inline] __kmalloc_noprof+0x4c9/0x800 mm/slub.c:5664 kmalloc_noprof include/linux/slab.h:961 [inline] raw_alloc_io_data drivers/usb/gadget/legacy/raw_gadget.c:673 [inline] raw_ioctl_ep_read drivers/usb/gadget/legacy/raw_gadget.c:1162 [inline] raw_ioctl+0x18cb/0x4030 drivers/usb/gadget/legacy/raw_gadget.c:1325 __do_compat_sys_ioctl fs/ioctl.c:695 [inline] __se_compat_sys_ioctl fs/ioctl.c:638 [inline] __ia32_compat_sys_ioctl+0x543/0x840 fs/ioctl.c:638 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x1f7/0x570 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf703d539 Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f542d55c EFLAGS: 00000206 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000c0085508 RDX: 00000000800000c0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 4: 10 07 adc %al,(%rdi) 6: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi a: 10 08 adc %cl,(%rax) c: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 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 ret 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 90 nop 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop