------------[ cut here ]------------ WARNING: CPU: 1 PID: 9076 at mm/page_alloc.c:5159 __alloc_frozen_pages_noprof+0x309/0x2470 mm/page_alloc.c:5159 Modules linked in: CPU: 1 UID: 0 PID: 9076 Comm: syz.0.879 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__alloc_frozen_pages_noprof+0x309/0x2470 mm/page_alloc.c:5159 Code: f0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 d1 af 50 09 83 fe 0a 0f 86 0c fe ff ff 80 3d a0 3b 54 0e 00 75 0b c6 05 97 3b 54 0e 01 90 <0f> 0b 90 45 31 f6 eb 81 4d 85 f6 74 22 44 89 fa 89 ee 4c 89 f7 e8 RSP: 0018:ffffc900058ef7c8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000000002f RDI: 0000000000040d40 RBP: 000000000000002f R08: 0000000000000005 R09: 0000000000000009 R10: 000000000000002f R11: 0000000000000000 R12: 0000000000040d40 R13: 1ffff92000b1df0f R14: ffffffff9ab57424 R15: 000000000000002f FS: 00007f173507c6c0(0000) GS:ffff8880d6adf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000006380 CR3: 000000004de35000 CR4: 0000000000352ef0 Call Trace: alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416 ___kmalloc_large_node+0xed/0x160 mm/slub.c:5544 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5575 __do_kmalloc_node mm/slub.c:5591 [inline] __kmalloc_noprof.cold+0xc/0x62 mm/slub.c:5615 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] v9fs_fid_get_acl+0x7a/0x120 fs/9p/acl.c:32 __v9fs_get_acl fs/9p/acl.c:66 [inline] v9fs_get_acl+0xee/0x530 fs/9p/acl.c:92 v9fs_qid_iget_dotl fs/9p/vfs_inode_dotl.c:131 [inline] v9fs_inode_from_fid_dotl+0x264/0x2f0 fs/9p/vfs_inode_dotl.c:154 v9fs_get_new_inode_from_fid fs/9p/v9fs.h:251 [inline] v9fs_mount+0x4fd/0xa90 fs/9p/vfs_super.c:144 legacy_get_tree+0x109/0x220 fs/fs_context.c:663 vfs_get_tree+0x8b/0x340 fs/super.c:1751 fc_mount fs/namespace.c:1208 [inline] do_new_mount_fc fs/namespace.c:3651 [inline] do_new_mount fs/namespace.c:3727 [inline] path_mount+0x7b9/0x23a0 fs/namespace.c:4037 do_mount fs/namespace.c:4050 [inline] __do_sys_mount fs/namespace.c:4238 [inline] __se_sys_mount fs/namespace.c:4215 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:4215 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f173418eec9 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:00007f173507c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f17343e5fa0 RCX: 00007f173418eec9 RDX: 0000200000000b80 RSI: 00002000000003c0 RDI: 0000000000000000 RBP: 00007f1734211f91 R08: 0000200000000580 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f17343e6038 R14: 00007f17343e5fa0 R15: 00007ffd23624638