WARNING: CPU: 1 PID: 10922 at mm/page_alloc.c:5396 __alloc_pages+0x5cf/0x700 Modules linked in: CPU: 1 PID: 10922 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 RIP: 0010:__alloc_pages+0x5cf/0x700 mm/page_alloc.c:5396 Code: 00 48 ba 00 00 00 00 00 fc ff df e9 1d fd ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 2e fd ff ff e8 86 41 0a 00 e9 24 fd ff ff <0f> 0b 45 31 e4 e9 70 fd ff ff 48 8d 4c 24 50 80 e1 07 80 c1 03 38 RSP: 0018:ffffc900035c7a20 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 000000000000001d RCX: 0000000000000000 RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc900035c7aa8 RBP: ffffc900035c7b40 R08: dffffc0000000000 R09: ffffc900035c7a80 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000040d40 R13: 1ffff920006b8f4c R14: ffffc900035c7a80 R15: 1ffff920006b8f48 FS: 00007f038ff7e6c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000030 CR3: 000000005f858000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmalloc_order+0x41/0x150 mm/slab_common.c:966 kmalloc_order_trace+0x15/0xe0 mm/slab_common.c:982 kmalloc_large include/linux/slab.h:520 [inline] __kmalloc+0x214/0x300 mm/slub.c:4396 kmalloc include/linux/slab.h:596 [inline] kzalloc include/linux/slab.h:721 [inline] __v9fs_get_acl+0x40/0x110 fs/9p/acl.c:36 v9fs_get_acl+0xa5/0x280 fs/9p/acl.c:71 v9fs_mount+0x6dc/0x860 fs/9p/vfs_super.c:184 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1517 do_new_mount+0x2ba/0xb40 fs/namespace.c:3005 do_mount fs/namespace.c:3348 [inline] __do_sys_mount fs/namespace.c:3556 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3533 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f03919fdda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f038ff7e0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0391b2bf80 RCX: 00007f03919fdda9 RDX: 0000000020000b80 RSI: 00000000200003c0 RDI: 0000000000000000 RBP: 00007f0391a4a47a R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f0391b2bf80 R15: 00007ffc810f2418