------------[ cut here ]------------ WARNING: CPU: 0 PID: 5315 at mm/page_alloc.c:5534 __alloc_pages+0x150/0x1fc mm/page_alloc.c:5534 Modules linked in: CPU: 0 PID: 5315 Comm: syz-executor.1 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __alloc_pages+0x150/0x1fc mm/page_alloc.c:5534 lr : __alloc_pages_node include/linux/gfp.h:237 [inline] lr : alloc_pages_node include/linux/gfp.h:260 [inline] lr : __kmalloc_large_node+0xb4/0x1dc mm/slab_common.c:1096 sp : ffff80001489ba80 x29: ffff80001489bac0 x28: ffff00010ae68000 x27: 0000000000000000 x26: 0000000000008000 x25: 0000000040000080 x24: 0000000000000000 x23: ffff00010bc044e0 x22: ffff00010663a980 x21: 0000000000040d40 x20: 0000000000000000 x19: 0000000000000014 x18: 0000000000000161 x17: ffff80000c0cd83c x16: ffff80000dbe6158 x15: ffff00010ae68000 x14: 0000000000000000 x13: 00000000ffffffff x12: 00000000000fffff x11: 00000000f0000006 x10: 0000000000000040 x9 : 0000000000000001 x8 : ffff80000d95e000 x7 : ffff8000095d6cf4 x6 : 0000000000000000 x5 : 0000000000000080 x4 : ffff0001fefd37f0 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000014 x0 : 0000000000040d40 Call trace: __alloc_pages+0x150/0x1fc mm/page_alloc.c:5534 __alloc_pages_node include/linux/gfp.h:237 [inline] alloc_pages_node include/linux/gfp.h:260 [inline] __kmalloc_large_node+0xb4/0x1dc mm/slab_common.c:1096 __do_kmalloc_node mm/slab_common.c:943 [inline] __kmalloc+0x104/0x140 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] kzalloc include/linux/slab.h:689 [inline] __v9fs_get_acl+0x58/0x150 fs/9p/acl.c:28 v9fs_get_acl+0x68/0x254 fs/9p/acl.c:63 v9fs_mount+0x3e0/0x568 fs/9p/vfs_super.c:184 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1531 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x890 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 irq event stamp: 1172 hardirqs last enabled at (1171): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (1171): [] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194 hardirqs last disabled at (1172): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1030): [] spin_unlock_bh include/linux/spinlock.h:395 [inline] softirqs last enabled at (1030): [] bdi_register_va+0x2b4/0x328 mm/backing-dev.c:889 softirqs last disabled at (1028): [] spin_lock_bh include/linux/spinlock.h:355 [inline] softirqs last disabled at (1028): [] bdi_register_va+0x164/0x328 mm/backing-dev.c:879 ---[ end trace 0000000000000000 ]---