------------[ cut here ]------------ WARNING: CPU: 0 PID: 4500 at mm/page_alloc.c:5634 __alloc_pages+0xd0/0x544 mm/page_alloc.c:5634 Modules linked in: CPU: 0 PID: 4500 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __alloc_pages+0xd0/0x544 mm/page_alloc.c:5634 lr : __alloc_pages+0xac/0x544 mm/page_alloc.c:5628 sp : ffff8000216077a0 x29: ffff800021607870 x28: 1fffe0001a5beb12 x27: 1fffe0001a5beb12 x26: ffff8000216077c0 x25: dfff800000000000 x24: ffff7000042c0ef8 x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000040dc0 x20: 0000000000000000 x19: 000000000000000b x18: 0000000000000000 x17: 0000000000000000 x16: ffff800011bb65f8 x15: ffff800018508000 x14: 0000000000000005 x13: 1ffff000042c0efc x12: 0000000000000000 x11: 0000000000000000 x10: ffff7000042c0f01 x9 : 0000000000000001 x8 : ffff800017d98000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff8000186c6148 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __alloc_pages+0xd0/0x544 mm/page_alloc.c:5634 __alloc_pages_node include/linux/gfp.h:237 [inline] alloc_pages_node include/linux/gfp.h:260 [inline] __kmalloc_large_node+0x9c/0x1dc mm/slab_common.c:1077 __do_kmalloc_node mm/slab_common.c:924 [inline] __kmalloc+0x12c/0x180 mm/slab_common.c:949 kmalloc_array include/linux/slab.h:615 [inline] kcalloc include/linux/slab.h:646 [inline] max_vclocks_store+0x1f4/0x2f8 drivers/ptp/ptp_sysfs.c:286 dev_attr_store+0x6c/0x90 drivers/base/core.c:2388 sysfs_kf_write+0x1f8/0x274 fs/sysfs/file.c:140 kernfs_fop_write_iter+0x390/0x4b4 fs/kernfs/file.c:352 call_write_iter include/linux/fs.h:2271 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x3c8/0x7c8 fs/read_write.c:584 ksys_write+0x12c/0x228 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 1794 hardirqs last enabled at (1793): [] ___slab_alloc+0xca4/0xe90 mm/slub.c:3088 hardirqs last disabled at (1794): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1776): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1774): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---