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BUG: KASAN: slab-out-of-bounds in test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
BUG: KASAN: slab-out-of-bounds in bitmap_port_gc_test net/netfilter/ipset/ip_set_bitmap_port.c:67 [inline]
BUG: KASAN: slab-out-of-bounds in bitmap_port_gc+0x112/0x4f0 net/netfilter/ipset/ip_set_bitmap_gen.h:277
Read of size 8 at addr ffff8880937a2580 by task udevd/1643

CPU: 1 PID: 1643 Comm: udevd Not tainted 5.5.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374
 __kasan_report.cold+0x1b/0x41 mm/kasan/report.c:506
 kasan_report+0x12/0x20 mm/kasan/common.c:639
 check_memory_region_inline mm/kasan/generic.c:185 [inline]
 check_memory_region+0x134/0x1a0 mm/kasan/generic.c:192
 __kasan_check_read+0x11/0x20 mm/kasan/common.c:95
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
 bitmap_port_gc_test net/netfilter/ipset/ip_set_bitmap_port.c:67 [inline]
 bitmap_port_gc+0x112/0x4f0 net/netfilter/ipset/ip_set_bitmap_gen.h:277
 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404
 expire_timers kernel/time/timer.c:1449 [inline]
 __run_timers kernel/time/timer.c:1773 [inline]
 __run_timers kernel/time/timer.c:1740 [inline]
 run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786
 __do_softirq+0x262/0x98c kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x19b/0x1e0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:clear_page_erms+0x7/0x10 arch/x86/lib/clear_page_64.S:49
Code: 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d9 90 c3 0f 1f 80 00 00 00 00 b9 00 10 00 00 31 c0 <f3> aa c3 cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 41 55 41 54 53
RSP: 0018:ffffc900043c7450 EFLAGS: 00010246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffffea00027f56c0 RCX: 0000000000000540
RDX: 1ffff1100afb8e6b RSI: 0000000000000001 RDI: ffff88809fd5bac0
RBP: ffffc900043c7490 R08: ffff888057dc6100 R09: ffffed1013fab600
R10: fffff940004feade R11: ffffea00027f56f7 R12: ffff888057dc6100
R13: ffffed100afb8e9d R14: dffffc0000000000 R15: ffffea00027f5700
 prep_new_page+0x13b/0x200 mm/page_alloc.c:2160
 get_page_from_freelist+0x1741/0x42a0 mm/page_alloc.c:3684
 __alloc_pages_nodemask+0x2d0/0x910 mm/page_alloc.c:4731
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2211
 alloc_pages include/linux/gfp.h:532 [inline]
 __pte_alloc_one include/asm-generic/pgalloc.h:63 [inline]
 pte_alloc_one+0x1b/0x1a0 arch/x86/mm/pgtable.c:26
 __pte_alloc+0x20/0x310 mm/memory.c:426
 copy_pte_range mm/memory.c:816 [inline]
 copy_pmd_range mm/memory.c:892 [inline]
 copy_pud_range mm/memory.c:926 [inline]
 copy_p4d_range mm/memory.c:948 [inline]
 copy_page_range+0x1914/0x2190 mm/memory.c:1010
 dup_mmap kernel/fork.c:604 [inline]
 dup_mm+0xa67/0x1430 kernel/fork.c:1360
 copy_mm kernel/fork.c:1416 [inline]
 copy_process+0x2ad6/0x7230 kernel/fork.c:2072
 _do_fork+0x146/0x1090 kernel/fork.c:2421
 __do_sys_clone kernel/fork.c:2576 [inline]
 __se_sys_clone kernel/fork.c:2557 [inline]
 __x64_sys_clone+0x19a/0x260 kernel/fork.c:2557
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7ff5416e3f46
Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00
RSP: 002b:00007fff96ebee30 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fff96ebee30 RCX: 00007ff5416e3f46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fff96ebee90 R08: 000000000000066b R09: 000000000000066b
R10: 00007ff542000a70 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff96ebee50 R14: 0000000000000005 R15: 0000000000000005

Allocated by task 1082:
 save_stack+0x23/0x90 mm/kasan/common.c:72
 set_track mm/kasan/common.c:80 [inline]
 __kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:486
 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:527
 __do_kmalloc mm/slab.c:3656 [inline]
 __kmalloc+0x163/0x770 mm/slab.c:3665
 kmalloc include/linux/slab.h:561 [inline]
 kzalloc include/linux/slab.h:670 [inline]
 ip_set_alloc+0x38/0x5e net/netfilter/ipset/ip_set_core.c:255
 init_map_port net/netfilter/ipset/ip_set_bitmap_port.c:234 [inline]
 bitmap_port_create+0x3dc/0x7c0 net/netfilter/ipset/ip_set_bitmap_port.c:276
 ip_set_create+0x6f1/0x1500 net/netfilter/ipset/ip_set_core.c:1111
 nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:639 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:659
 ____sys_sendmsg+0x753/0x880 net/socket.c:2330
 ___sys_sendmsg+0x100/0x170 net/socket.c:2384
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417
 __do_sys_sendmsg net/socket.c:2426 [inline]
 __se_sys_sendmsg net/socket.c:2424 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 32440:
 save_stack+0x23/0x90 mm/kasan/common.c:72
 set_track mm/kasan/common.c:80 [inline]
 kasan_set_free_info mm/kasan/common.c:335 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/common.c:474
 kasan_slab_free+0xe/0x10 mm/kasan/common.c:483
 __cache_free mm/slab.c:3426 [inline]
 kfree+0x10a/0x2c0 mm/slab.c:3757
 security_cred_free+0xa9/0x110 security/security.c:1548
 put_cred_rcu+0x129/0x4b0 kernel/cred.c:114
 __put_cred+0x1ef/0x270 kernel/cred.c:148
 put_cred include/linux/cred.h:287 [inline]
 do_faccessat+0x693/0x7f0 fs/open.c:439
 __do_sys_access fs/open.c:450 [inline]
 __se_sys_access fs/open.c:448 [inline]
 __x64_sys_access+0x59/0x80 fs/open.c:448
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8880937a2580
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes inside of
 32-byte region [ffff8880937a2580, ffff8880937a25a0)
The buggy address belongs to the page:
page:ffffea00024de880 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880937a2fc1
raw: 00fffe0000000200 ffffea000258a9c8 ffffea00027bb208 ffff8880aa4001c0
raw: ffff8880937a2fc1 ffff8880937a2000 000000010000003e 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880937a2480: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8880937a2500: 05 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc
>ffff8880937a2580: 04 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc
                   ^
 ffff8880937a2600: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff8880937a2680: 00 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc
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