------------[ cut here ]------------ WARNING: CPU: 0 PID: 7535 at mm/page_alloc.c:4935 __alloc_frozen_pages_noprof+0xd0/0x318 mm/page_alloc.c:4935 Modules linked in: CPU: 0 UID: 0 PID: 7535 Comm: syz.2.417 Not tainted 6.16.0-rc6-syzkaller-g347e9f5043c8 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __alloc_frozen_pages_noprof+0xd0/0x318 mm/page_alloc.c:4935 lr : __alloc_frozen_pages_noprof+0xac/0x318 mm/page_alloc.c:4929 sp : ffff80009c0f7740 x29: ffff80009c0f7800 x28: ffff0000c6ce0000 x27: 0000000006200000 x26: ffff80009c0f79e0 x25: dfff800000000000 x24: ffff80009c0f7760 x23: ffff70001381eeec x22: 0000000000000000 x21: 0000000000040dc0 x20: 0000000000000000 x19: 0000000000000019 x18: 1fffe00033e68a76 x17: ffff80008d65e000 x16: ffff800089c31e48 x15: 0000000000000005 x14: 1ffff0001381eef0 x13: 0000000000000000 x12: 0000000000000000 x11: ffff70001381eef5 x10: dfff800000000000 x9 : 0000000000000001 x8 : ffff80008ffa2000 x7 : 0000000000000000 x6 : ffff80009c0f7c40 x5 : ffff80009c0f7c40 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __alloc_frozen_pages_noprof+0xd0/0x318 mm/page_alloc.c:4935 (P) __alloc_pages_noprof+0x18/0x100 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+0xa8/0x1d8 mm/slub.c:4272 __kmalloc_large_node_noprof+0x2c/0x8c mm/slub.c:4300 __do_kmalloc_node mm/slub.c:4316 [inline] __kmalloc_noprof+0x3b8/0x494 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] kmalloc_array_noprof include/linux/slab.h:948 [inline] comedi_unlocked_ioctl+0x8f8/0xdb8 drivers/comedi/comedi_fops.c:2242 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 1976 hardirqs last enabled at (1975): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (1975): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (1976): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (1948): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1946): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---