------------[ cut here ]------------ WARNING: CPU: 0 PID: 4205 at mm/page_alloc.c:5396 __alloc_pages+0x33c/0x674 mm/page_alloc.c:5396 Modules linked in: CPU: 0 PID: 4205 Comm: syz-executor.1 Not tainted 5.15.153-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __alloc_pages+0x33c/0x674 mm/page_alloc.c:5396 lr : __alloc_pages+0xc8/0x674 mm/page_alloc.c:5389 sp : ffff80001f1676c0 x29: ffff80001f1677b0 x28: ffff80001f1676e0 x27: dfff800000000000 x26: ffff700003e2cedc x25: 0000000000000000 x24: ffff80001f167700 x23: ffff80001845e604 x22: 0000000000040d40 x21: 0000000000000000 x20: ffff80001f167720 x19: 0000000000000014 x18: 0000000000000000 x17: 0000000000000002 x16: ffff80000889eb0c x15: 0000000000000005 x14: ffff0000c670b680 x13: 0000000000ff0100 x12: 0000000000000005 x11: 1ffff00003e2cee4 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff80001f167748 x7 : 0000000000000000 x6 : ffff80000805d7bc x5 : ffff0000eb29a638 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000008 x1 : 0000000000000000 x0 : ffff80001f167720 Call trace: __alloc_pages+0x33c/0x674 mm/page_alloc.c:5396 alloc_pages+0x368/0x5d4 kmalloc_order+0x40/0x154 mm/slab_common.c:966 kmalloc_order_trace+0x30/0x21c mm/slab_common.c:982 kmalloc_large include/linux/slab.h:520 [inline] __kmalloc+0x35c/0x4c8 mm/slub.c:4396 kmalloc include/linux/slab.h:596 [inline] kzalloc include/linux/slab.h:721 [inline] __v9fs_get_acl+0x58/0x150 fs/9p/acl.c:36 v9fs_get_acl+0xb8/0x2f0 fs/9p/acl.c:71 v9fs_mount+0x604/0x780 fs/9p/vfs_super.c:184 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1517 do_new_mount+0x278/0x8fc fs/namespace.c:3005 path_mount+0x594/0x101c fs/namespace.c:3335 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount fs/namespace.c:3533 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3533 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 2564 hardirqs last enabled at (2563): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (2564): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (2016): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (2016): [] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587 softirqs last disabled at (1701): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1701): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1701): [] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637 ---[ end trace e27f0c98a52ddd54 ]---