------------[ cut here ]------------ current->flags & PF_MEMALLOC WARNING: mm/page_alloc.c:4816 at __alloc_pages_slowpath mm/page_alloc.c:4816 [inline], CPU#0: syz.8.4093/18905 WARNING: mm/page_alloc.c:4816 at __alloc_frozen_pages_noprof+0x1eac/0x3300 mm/page_alloc.c:5449, CPU#0: syz.8.4093/18905 Modules linked in: CPU: 0 UID: 0 PID: 18905 Comm: syz.8.4093 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__alloc_pages_slowpath mm/page_alloc.c:4816 [inline] RIP: 0010:__alloc_frozen_pages_noprof+0x1eac/0x3300 mm/page_alloc.c:5449 Code: 38 d0 7c 08 84 d2 0f 85 de 12 00 00 65 48 8b 05 22 6e 1c 13 c7 84 24 94 00 00 00 00 80 00 00 f6 40 2d 08 0f 84 ba e7 ff ff 90 <0f> 0b 90 e9 b1 e7 ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 RSP: 0000:ffffc90006e961c8 EFLAGS: 00010202 RAX: ffff8880692aa580 RBX: 0000000000000000 RCX: 1ffff1100fffad29 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88803fffd938 RBP: ffff8880692aa5ac R08: 0000000000008000 R09: 0000000000000001 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000148c48 R13: ffff88803fffb900 R14: 0000000000000000 R15: 1ffff92000dd2c53 FS: 0000000000000000(0000) GS:ffff88809574a000(0063) knlGS:00000000f5436b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002f7ceff8 CR3: 0000000057b4b000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000004e06 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: alloc_pages_mpol+0x201/0x550 mm/mempolicy.c:2486 alloc_pages_noprof mm/mempolicy.c:2577 [inline] folio_alloc_noprof+0x22/0x250 mm/mempolicy.c:2587 filemap_alloc_folio_noprof.part.0+0x3db/0x440 mm/filemap.c:1019 filemap_alloc_folio_noprof mm/filemap.c:2033 [inline] __filemap_get_folio_mpol+0x653/0x1280 mm/filemap.c:2018 __filemap_get_folio include/linux/pagemap.h:761 [inline] grow_dev_folio fs/buffer.c:858 [inline] grow_buffers fs/buffer.c:924 [inline] __getblk_slow fs/buffer.c:942 [inline] bdev_getblk+0x246/0x6a0 fs/buffer.c:1346 __getblk include/linux/buffer_head.h:378 [inline] sb_getblk include/linux/buffer_head.h:384 [inline] ext4_read_block_bitmap_nowait+0x2dd/0x1780 fs/ext4/balloc.c:492 ext4_mb_init_cache+0x413/0x1920 fs/ext4/mballoc.c:1430 ext4_mb_load_buddy_gfp+0x11cb/0x1b20 fs/ext4/mballoc.c:1743 ext4_discard_preallocations+0x584/0x10c0 fs/ext4/mballoc.c:5686 ext4_clear_inode+0x6e/0x280 fs/ext4/super.c:1555 ext4_evict_inode+0x1de/0x17d0 fs/ext4/inode.c:333 evict+0x3c2/0xad0 fs/inode.c:822 dispose_list+0x117/0x1e0 fs/inode.c:864 prune_icache_sb+0xea/0x150 fs/inode.c:1010 super_cache_scan+0x376/0x550 fs/super.c:227 do_shrink_slab+0x416/0x1200 mm/shrinker.c:445 shrink_slab_memcg mm/shrinker.c:562 [inline] shrink_slab+0xa82/0x12e0 mm/shrinker.c:640 shrink_one+0x398/0x850 mm/vmscan.c:5119 shrink_many mm/vmscan.c:5180 [inline] lru_gen_shrink_node mm/vmscan.c:5258 [inline] shrink_node+0x2b20/0x4320 mm/vmscan.c:6247 shrink_zones mm/vmscan.c:6503 [inline] do_try_to_free_pages+0x33e/0x16d0 mm/vmscan.c:6565 try_to_free_pages+0x2a0/0x740 mm/vmscan.c:6804 __perform_reclaim mm/page_alloc.c:4451 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:4478 [inline] __alloc_pages_slowpath mm/page_alloc.c:4939 [inline] __alloc_frozen_pages_noprof+0xf8a/0x3300 mm/page_alloc.c:5449 __alloc_pages_noprof mm/page_alloc.c:5471 [inline] alloc_pages_node_noprof+0x93/0x200 mm/page_alloc.c:5485 vm_area_alloc_pages mm/vmalloc.c:3766 [inline] __vmalloc_area_node mm/vmalloc.c:3914 [inline] __vmalloc_node_range_noprof+0x93b/0x1420 mm/vmalloc.c:4104 __bpf_map_area_alloc+0x12e/0x200 kernel/bpf/syscall.c:404 sock_hash_alloc net/core/sock_map.c:1128 [inline] sock_hash_alloc+0x331/0x510 net/core/sock_map.c:1099 map_create_alloc kernel/bpf/syscall.c:1534 [inline] map_create+0x874/0x30d0 kernel/bpf/syscall.c:1644 __sys_bpf+0x12a0/0x4a30 kernel/bpf/syscall.c:6364 __do_sys_bpf kernel/bpf/syscall.c:6506 [inline] __se_sys_bpf kernel/bpf/syscall.c:6503 [inline] __ia32_sys_bpf+0xcc/0x170 kernel/bpf/syscall.c:6503 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f83fec Code: Unable to access opcode bytes at 0xf7f83fc2. RSP: 002b:00000000f543650c EFLAGS: 00000292 ORIG_RAX: 0000000000000165 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000080000140 RDX: 0000000000000050 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000