------------[ cut here ]------------ WARNING: CPU: 0 PID: 1605 at mm/page_alloc.c:5285 __alloc_pages_noprof+0x109/0x7e0 mm/page_alloc.c:5285 Modules linked in: CPU: 0 UID: 0 PID: 1605 Comm: syz.4.579 Not tainted syzkaller #0 24d49bbd58fde8b05052ac524e35fadc70590708 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__alloc_pages_noprof+0x109/0x7e0 mm/page_alloc.c:5285 Code: 00 0f 1f 44 00 00 83 fb 0b 72 28 b8 00 20 00 00 23 44 24 40 75 1d 80 3d d4 d8 0b 06 00 0f 85 c2 00 00 00 c6 05 c7 d8 0b 06 01 <0f> 0b 31 c0 e9 b4 00 00 00 83 fb 0a 0f 87 a9 00 00 00 44 8b 64 24 RSP: 0018:ffffc9000f42f8c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000013 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000f42f978 RBP: ffffc9000f42f9f0 R08: ffffc9000f42f977 R09: 0000000000000000 R10: ffffc9000f42f960 R11: fffff52001e85f2f R12: ffffc9000f42f900 R13: dffffc0000000000 R14: 1ffff92001e85f1c R15: 0000000000000000 FS: 00007f1a13dbc6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c32662c CR3: 0000000136cbe000 CR4: 00000000003526b0 Call Trace: ___kmalloc_large_node+0x81/0x220 mm/slub.c:-1 __kmalloc_large_node_noprof+0x1e/0xd0 mm/slub.c:4367 __do_kmalloc_node mm/slub.c:4383 [inline] __kmalloc_node_track_caller_noprof+0x30d/0x4f0 mm/slub.c:4414 memdup_user_nul+0x40/0x1a0 mm/util.c:319 bitmap_parse_user+0x29/0x80 lib/bitmap-str.c:31 cpumask_parse_user include/linux/cpumask.h:876 [inline] write_irq_affinity kernel/irq/proc.c:151 [inline] irq_affinity_proc_write+0x139/0x230 kernel/irq/proc.c:180 pde_write fs/proc/inode.c:330 [inline] proc_reg_write+0x1f7/0x2f0 fs/proc/inode.c:342 vfs_write+0x3c1/0xfd0 fs/read_write.c:682 ksys_write+0x145/0x260 fs/read_write.c:737 __do_sys_write fs/read_write.c:749 [inline] __se_sys_write fs/read_write.c:746 [inline] __x64_sys_write+0x7f/0x90 fs/read_write.c:746 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f1a12f9e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1a13dbc028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f1a13225fa0 RCX: 00007f1a12f9e0d9 RDX: 00000000fffffcf0 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f1a13035024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1a13226038 R14: 00007f1a13225fa0 R15: 00007fff0a9b6318 ---[ end trace 0000000000000000 ]---