------------[ cut here ]------------ WARNING: CPU: 0 PID: 6090 at mm/page_alloc.c:4544 __alloc_pages+0x308/0x698 mm/page_alloc.c:4544 Modules linked in: CPU: 0 PID: 6090 Comm: syz-executor267 Not tainted 6.7.0-rc3-syzkaller-g2cc14f52aeb7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __alloc_pages+0x308/0x698 mm/page_alloc.c:4544 lr : __alloc_pages+0xc8/0x698 mm/page_alloc.c:4538 sp : ffff800097037760 x29: ffff800097037850 x28: ffff800097037780 x27: dfff800000000000 x26: ffff700012e06ef0 x25: 0000000000000000 x24: ffff8000970377a0 x23: 0000000000000000 x22: 0000000000040d40 x21: 1ffff00012e06ef4 x20: ffff8000970377c0 x19: 0000000000000014 x18: 1fffe000368265ce x17: ffff80008e4dd000 x16: ffff80008a771000 x15: 0000000000000005 x14: 1ffff00012e06ef8 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700012e06efd x10: 1ffff00012e06efc x9 : 0000000000000001 x8 : ffff8000912cd000 x7 : 0000000000000000 x6 : ffff80008005f410 x5 : ffff0000c8296048 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000008 x1 : 0000000000000000 x0 : ffff8000970377c0 Call trace: __alloc_pages+0x308/0x698 mm/page_alloc.c:4544 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] __kmalloc_large_node+0xbc/0x1fc mm/slab_common.c:1148 __do_kmalloc_node mm/slab_common.c:995 [inline] __kmalloc+0x124/0x1b8 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:721 [inline] v9fs_fid_get_acl+0x64/0x114 fs/9p/acl.c:32 __v9fs_get_acl fs/9p/acl.c:66 [inline] v9fs_get_acl+0x128/0x394 fs/9p/acl.c:93 v9fs_mount+0x764/0xa50 fs/9p/vfs_super.c:181 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662 vfs_get_tree+0x90/0x288 fs/super.c:1771 do_new_mount+0x25c/0x8c8 fs/namespace.c:3337 path_mount+0x590/0xe04 fs/namespace.c:3664 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount fs/namespace.c:3863 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3863 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 14066 hardirqs last enabled at (14065): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:242 hardirqs last disabled at (14066): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (13842): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (13842): [] bdi_register_va+0x508/0x7e8 mm/backing-dev.c:1025 softirqs last disabled at (13840): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (13840): [] bdi_register_va+0x2f0/0x7e8 mm/backing-dev.c:1015 ---[ end trace 0000000000000000 ]---