------------[ cut here ]------------ WARNING: CPU: 1 PID: 3295 at mm/page_alloc.c:4433 __alloc_pages+0x18f/0x290 mm/page_alloc.c:4433 Modules linked in: CPU: 1 PID: 3295 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__alloc_pages+0x18f/0x290 mm/page_alloc.c:4433 Code: 00 00 89 c9 48 0f a3 0d a7 c6 43 02 73 20 48 89 c3 e8 35 e4 e1 ff 84 c0 0f 84 87 00 00 00 48 89 d8 eb 0b c6 05 f6 94 39 02 01 <0f> 0b 31 c0 65 48 8b 0c 25 28 00 00 00 48 3b 4c 24 30 75 7f 48 83 RSP: 0018:ffffc9000295bce0 EFLAGS: 00010246 RAX: 1db5009b9333a700 RBX: 000000000000002a RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000000002a RDI: 0000000000040d40 RBP: 0000000000040d40 R08: ffff8881053eb4e0 R09: ffff8881053ebb40 R10: 0000000000032200 R11: 0000000000000800 R12: 0020000000078000 R13: ffff88817b0e09c0 R14: 0000000000000000 R15: ffffffff8170decd FS: 00007fe7b13986c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000240 CR3: 0000000107bd1000 CR4: 00000000003506e0 Call Trace: __alloc_pages_node include/linux/gfp.h:237 [inline] alloc_pages_node include/linux/gfp.h:260 [inline] __kmalloc_large_node+0x7d/0x160 mm/slab_common.c:1148 __do_kmalloc_node mm/slab_common.c:995 [inline] __kmalloc+0xf2/0x1e0 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:721 [inline] v9fs_fid_get_acl+0x2d/0x90 fs/9p/acl.c:32 __v9fs_get_acl fs/9p/acl.c:66 [inline] v9fs_get_acl+0x35/0x1a0 fs/9p/acl.c:92 v9fs_mount+0x322/0x3c0 fs/9p/vfs_super.c:181 legacy_get_tree+0x29/0x50 fs/fs_context.c:662 vfs_get_tree+0x26/0xe0 fs/super.c:1764 do_new_mount+0x140/0x380 fs/namespace.c:3386 do_mount fs/namespace.c:3726 [inline] __do_sys_mount fs/namespace.c:3935 [inline] __se_sys_mount+0x14b/0x1b0 fs/namespace.c:3912 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe7b058eb69 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe7b1398038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fe7b07b5fa0 RCX: 00007fe7b058eb69 RDX: 0000200000000b80 RSI: 00002000000003c0 RDI: 0000000000000000 RBP: 00007fe7b0611df1 R08: 0000200000000580 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe7b07b5fa0 R15: 00007ffe664e3dd8