------------[ cut here ]------------ WARNING: CPU: 0 PID: 5342 at mm/page_alloc.c:4935 __alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:4935 Modules linked in: CPU: 0 UID: 33279 PID: 5342 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:4935 Code: 74 10 4c 89 e7 89 54 24 0c e8 24 14 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 a7 36 75 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:ffffc900019b7960 EFLAGS: 00010246 RAX: ffffc900019b7900 RBX: 0000000000000019 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900019b79c8 RBP: ffffc900019b7a50 R08: ffffc900019b79c7 R09: 0000000000000000 R10: ffffc900019b79a0 R11: fffff52000336f39 R12: 0000000000000000 R13: 1ffff92000336f30 R14: 0000000000040dc0 R15: dffffc0000000000 FS: 00007ff64b8d56c0(0000) GS:ffff88808d21d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555ad0b7c8 CR3: 000000004097d000 CR4: 0000000000352ef0 Call Trace: __alloc_pages_noprof+0xa/0x30 mm/page_alloc.c:4993 __alloc_pages_node_noprof include/linux/gfp.h:284 [inline] alloc_pages_node_noprof include/linux/gfp.h:311 [inline] ___kmalloc_large_node+0x85/0x210 mm/slub.c:4272 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:4300 __do_kmalloc_node mm/slub.c:4316 [inline] __kmalloc_noprof+0x36f/0x4f0 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] kmalloc_array_noprof include/linux/slab.h:948 [inline] comedi_unlocked_ioctl+0x9ee/0xf40 drivers/comedi/comedi_fops.c:2242 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff64a98e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff64b8d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff64abb5fa0 RCX: 00007ff64a98e929 RDX: 0000200000000000 RSI: 000000008010640b RDI: 0000000000000003 RBP: 00007ff64aa10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff64abb5fa0 R15: 00007ffeffdc3738