==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: slab-use-after-free in bitmap_port_gc_test net/netfilter/ipset/ip_set_bitmap_port.c:67 [inline]
BUG: KASAN: slab-use-after-free in bitmap_port_gc+0x146/0x4c0 net/netfilter/ipset/ip_set_bitmap_gen.h:277
Read of size 8 at addr ffff88807e059840 by task syz-executor.4/8172
CPU: 0 PID: 8172 Comm: syz-executor.4 Not tainted 6.8.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x167/0x540 mm/kasan/report.c:488
kasan_report+0x142/0x180 mm/kasan/report.c:601
kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
bitmap_port_gc_test net/netfilter/ipset/ip_set_bitmap_port.c:67 [inline]
bitmap_port_gc+0x146/0x4c0 net/netfilter/ipset/ip_set_bitmap_gen.h:277
call_timer_fn+0x180/0x600 kernel/time/timer.c:1700
expire_timers kernel/time/timer.c:1751 [inline]
__run_timers+0x621/0x830 kernel/time/timer.c:2038
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2051
__do_softirq+0x2bd/0x942 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu+0xf1/0x1c0 kernel/softirq.c:632
irq_exit_rcu+0x9/0x30 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ae 74 84 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 73 3a f3 f5 65 8b 05 04 b1 92 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90004027600 EFLAGS: 00000206
RAX: 2b5f96881c6e7500 RBX: 1ffff92000804ec4 RCX: ffffffff817183ea
RDX: dffffc0000000000 RSI: ffffffff8baab540 RDI: 0000000000000001
RBP: ffffc90004027690 R08: ffffffff92c894c7 R09: 1ffffffff2591298
R10: dffffc0000000000 R11: fffffbfff2591299 R12: dffffc0000000000
R13: 1ffff92000804ec0 R14: ffffc90004027620 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
__wake_up_common_lock+0x18c/0x1e0 kernel/sched/wait.c:108
__unix_dgram_recvmsg+0x602/0x12c0 net/unix/af_unix.c:2408
sock_recvmsg_nosec+0x190/0x1d0 net/socket.c:1046
____sys_recvmsg+0x3c0/0x470 net/socket.c:2801
___sys_recvmsg net/socket.c:2845 [inline]
do_recvmmsg+0x474/0xae0 net/socket.c:2939
__sys_recvmmsg net/socket.c:3018 [inline]
__do_sys_recvmmsg net/socket.c:3041 [inline]
__se_sys_recvmmsg net/socket.c:3034 [inline]
__x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f0f47e7dda9
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:00007f0f48c660c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f0f47fac050 RCX: 00007f0f47e7dda9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00007f0f47eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0f47fac050 R15: 00007ffc87865b58
Allocated by task 6181:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:372 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3981 [inline]
__kmalloc+0x22e/0x490 mm/slub.c:3994
init_map_port net/netfilter/ipset/ip_set_bitmap_port.c:234 [inline]
bitmap_port_create+0x324/0x7c0 net/netfilter/ipset/ip_set_bitmap_port.c:276
ip_set_create+0xa5e/0x1780 net/netfilter/ipset/ip_set_core.c:1103
nfnetlink_rcv_msg+0xbee/0x1190 net/netfilter/nfnetlink.c:302
netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2543
nfnetlink_rcv+0x294/0x2650 net/netfilter/nfnetlink.c:659
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x223/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
Freed by task 2455:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:640
poison_slab_object+0xa6/0xe0 mm/kasan/common.c:241
__kasan_slab_free+0x34/0x70 mm/kasan/common.c:257
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2121 [inline]
slab_free mm/slub.c:4299 [inline]
kfree+0x14a/0x380 mm/slub.c:4409
bitmap_port_destroy+0x300/0x390 net/netfilter/ipset/ip_set_bitmap_gen.h:65
ip_set_destroy_set net/netfilter/ipset/ip_set_core.c:1180 [inline]
ip_set_net_exit+0x252/0x470 net/netfilter/ipset/ip_set_core.c:2381
ops_exit_list net/core/net_namespace.c:170 [inline]
cleanup_net+0x6dc/0xb90 net/core/net_namespace.c:618
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x915/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2f1/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
The buggy address belongs to the object at ffff88807e059840
which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes inside of
freed 8-byte region [ffff88807e059840, ffff88807e059848)
The buggy address belongs to the physical page:
page:ffffea0001f81640 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7e059
anon flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000800 ffff888014c41280 0000000000000000 dead000000000001
raw: 0000000000000000 00000000002a002a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 5437, tgid 5437 (syz-executor.5), ts 165976366129, free_ts 165976221019
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1533
prep_new_page mm/page_alloc.c:1540 [inline]
get_page_from_freelist+0x33ea/0x3580 mm/page_alloc.c:3311
__alloc_pages+0x255/0x680 mm/page_alloc.c:4567
__alloc_pages_node include/linux/gfp.h:238 [inline]
alloc_pages_node include/linux/gfp.h:261 [inline]
alloc_slab_page+0x5f/0x160 mm/slub.c:2190
allocate_slab mm/slub.c:2354 [inline]
new_slab+0x84/0x2f0 mm/slub.c:2407
___slab_alloc+0xd17/0x13e0 mm/slub.c:3540
__slab_alloc mm/slub.c:3625 [inline]
__slab_alloc_node mm/slub.c:3678 [inline]
slab_alloc_node mm/slub.c:3850 [inline]
__do_kmalloc_node mm/slub.c:3980 [inline]
__kmalloc_node+0x2d6/0x4e0 mm/slub.c:3988
kmalloc_node include/linux/slab.h:610 [inline]
__vmalloc_area_node mm/vmalloc.c:3125 [inline]
__vmalloc_node_range+0x5f9/0x14a0 mm/vmalloc.c:3320
__vmalloc_node mm/vmalloc.c:3385 [inline]
vzalloc+0x79/0x90 mm/vmalloc.c:3458
alloc_counters+0xd7/0x760 net/ipv4/netfilter/ip_tables.c:799
copy_entries_to_user net/ipv4/netfilter/ip_tables.c:821 [inline]
get_entries net/ipv4/netfilter/ip_tables.c:1022 [inline]
do_ipt_get_ctl+0xeca/0x1810 net/ipv4/netfilter/ip_tables.c:1660
nf_getsockopt+0x29b/0x2c0 net/netfilter/nf_sockopt.c:116
ip_getsockopt+0x222/0x2e0 net/ipv4/ip_sockglue.c:1770
tcp_getsockopt+0x165/0x1c0 net/ipv4/tcp.c:4372
do_sock_getsockopt+0x375/0x850 net/socket.c:2373
__sys_getsockopt+0x270/0x330 net/socket.c:2402
page last free pid 5437 tgid 5437 stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1140 [inline]
free_unref_page_prepare+0x968/0xa90 mm/page_alloc.c:2346
free_unref_page+0x37/0x3f0 mm/page_alloc.c:2486
vfree+0x186/0x2e0 mm/vmalloc.c:2842
__do_replace+0x86c/0xa40 net/ipv4/netfilter/ip_tables.c:1090
do_replace net/ipv4/netfilter/ip_tables.c:1137 [inline]
do_ipt_set_ctl+0x287c/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627
nf_setsockopt+0x297/0x2c0 net/netfilter/nf_sockopt.c:101
do_sock_setsockopt+0x3b1/0x720 net/socket.c:2311
__sys_setsockopt+0x1ad/0x250 net/socket.c:2334
__do_sys_setsockopt net/socket.c:2343 [inline]
__se_sys_setsockopt net/socket.c:2340 [inline]
__x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
Memory state around the buggy address:
ffff88807e059700: fc fc fc fc 00 fc fc fc fc fc fc fc fc fc fc fc
ffff88807e059780: fa fc fc fc fc fc fc fc fc fc fc fc fa fc fc fc
>ffff88807e059800: fc fc fc fc fc fc fc fc fa fc fc fc fc fc fc fc
^
ffff88807e059880: fc fc fc fc fa fc fc fc fc fc fc fc fc fc fc fc
ffff88807e059900: fa fc fc fc fc fc fc fc fc fc fc fc fa fc fc fc
==================================================================
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 ae 74 84 f6 call 0xf68474c2
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 52 jne 0x6d
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 73 3a f3 f5 call 0xf5f33aa2 <-- trapping instruction
2f: 65 8b 05 04 b1 92 74 mov %gs:0x7492b104(%rip),%eax # 0x7492b13a
36: 85 c0 test %eax,%eax
38: 74 43 je 0x7d
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss