[moderation] [kernel?] KASAN: slab-use-after-free Write in hash_ipport4_gc
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syzbot
Feb 5, 2024, 8:52:24 PMFeb 5
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 021533194476 Kconfig: Disable -Wstringop-overflow for GCC ..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=167d4d40180000
kernel config: https://syzkaller.appspot.com/x/.config?x=98e99addccbcfc7f
dashboard link: https://syzkaller.appspot.com/bug?extid=72e72fabc7bc24d0d357
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
CC: [b...@alien8.de dave....@linux.intel.com h...@zytor.com linux-...@vger.kernel.org mi...@redhat.com tg...@linutronix.de x...@kernel.org]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ef16119062c3/disk-02153319.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ed68dccd3f36/vmlinux-02153319.xz
kernel image: https://storage.googleapis.com/syzbot-assets/12cc448a832c/bzImage-02153319.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+72e72f...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: slab-use-after-free in atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
BUG: KASAN: slab-use-after-free in hash_ipport4_gc+0xce/0x460 net/netfilter/ipset/ip_set_hash_gen.h:572
Write of size 4 at addr ffff88801e258004 by task kworker/1:4/5126
CPU: 1 PID: 5126 Comm: kworker/1:4 Not tainted 6.8.0-rc2-syzkaller-00199-g021533194476 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_power_efficient hash_ipport4_gc
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:488
kasan_report+0xda/0x110 mm/kasan/report.c:601
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
hash_ipport4_gc+0xce/0x460 net/netfilter/ipset/ip_set_hash_gen.h:572
process_one_work+0x889/0x15e0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x12a0 kernel/workqueue.c:2787
kthread+0x2c6/0x3b0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
</TASK>
Allocated by task 7869:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:314 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:340
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3813 [inline]
slab_alloc_node mm/slub.c:3860 [inline]
kmem_cache_alloc_node+0x177/0x350 mm/slub.c:3903
kmalloc_reserve+0x16a/0x260 net/core/skbuff.c:560
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
__netdev_alloc_skb+0x72/0x3f0 net/core/skbuff.c:715
netdev_alloc_skb include/linux/skbuff.h:3235 [inline]
dev_alloc_skb include/linux/skbuff.h:3248 [inline]
__ieee80211_beacon_get+0xc33/0x16e0 net/mac80211/tx.c:5442
ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5564
ieee80211_beacon_get include/net/mac80211.h:5452 [inline]
mac80211_hwsim_beacon_tx+0x3f6/0x740 drivers/net/wireless/virtual/mac80211_hwsim.c:2275
__iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:767
ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:803
mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2305
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x203/0xc30 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769
__do_softirq+0x21c/0x8e7 kernel/softirq.c:553
Freed by task 7869:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640
poison_slab_object mm/kasan/common.c:241 [inline]
__kasan_slab_free+0x121/0x1c0 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]
kmem_cache_free+0x129/0x360 mm/slub.c:4363
skb_kfree_head net/core/skbuff.c:984 [inline]
skb_kfree_head net/core/skbuff.c:981 [inline]
skb_free_head+0x17f/0x1b0 net/core/skbuff.c:998
skb_release_data+0x5c0/0x880 net/core/skbuff.c:1028
skb_release_all net/core/skbuff.c:1094 [inline]
__kfree_skb net/core/skbuff.c:1108 [inline]
consume_skb net/core/skbuff.c:1324 [inline]
consume_skb+0xd2/0x170 net/core/skbuff.c:1318
mac80211_hwsim_tx_frame+0x1f3/0x2a0 drivers/net/wireless/virtual/mac80211_hwsim.c:2187
mac80211_hwsim_beacon_tx+0x41b/0x740 drivers/net/wireless/virtual/mac80211_hwsim.c:2279
__iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:767
ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:803
mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2305
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x203/0xc30 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769
__do_softirq+0x21c/0x8e7 kernel/softirq.c:553
The buggy address belongs to the object at ffff88801e258000
which belongs to the cache skbuff_small_head of size 640
The buggy address is located 4 bytes inside of
freed 640-byte region [ffff88801e258000, ffff88801e258280)
The buggy address belongs to the physical page:
page:ffffea0000789600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1e258
head:ffffea0000789600 order:2 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff8880192e68c0 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000150015 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1f2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_MEMALLOC|__GFP_HARDWALL), pid 7869, tgid 7863 (syz-executor.3), ts 444116522636, free_ts 442727496352
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d4/0x350 mm/page_alloc.c:1533
prep_new_page mm/page_alloc.c:1540 [inline]
get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3311
__alloc_pages+0x22f/0x2440 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 mm/slub.c:2190 [inline]
allocate_slab mm/slub.c:2354 [inline]
new_slab+0xcc/0x3a0 mm/slub.c:2407
___slab_alloc+0x4af/0x19a0 mm/slub.c:3540
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3625
__slab_alloc_node mm/slub.c:3678 [inline]
slab_alloc_node mm/slub.c:3850 [inline]
kmem_cache_alloc_node+0x10a/0x350 mm/slub.c:3903
kmalloc_reserve+0x16a/0x260 net/core/skbuff.c:560
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
__netdev_alloc_skb+0x72/0x3f0 net/core/skbuff.c:715
netdev_alloc_skb include/linux/skbuff.h:3235 [inline]
dev_alloc_skb include/linux/skbuff.h:3248 [inline]
__ieee80211_beacon_get+0xc33/0x16e0 net/mac80211/tx.c:5442
ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5564
ieee80211_beacon_get include/net/mac80211.h:5452 [inline]
mac80211_hwsim_beacon_tx+0x3f6/0x740 drivers/net/wireless/virtual/mac80211_hwsim.c:2275
__iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:767
ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:803
mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2305
page last free pid 7865 tgid 7864 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+0x527/0xb10 mm/page_alloc.c:2346
free_unref_page+0x33/0x3c0 mm/page_alloc.c:2486
__folio_put+0xeb/0x110 mm/swap.c:127
kvfree+0x47/0x50 mm/util.c:663
hash_ipport4_destroy+0xae/0x3a0 net/netfilter/ipset/ip_set_hash_gen.h:455
ip_set_create+0xd9f/0x1360 net/netfilter/ipset/ip_set_core.c:1157
nfnetlink_rcv_msg+0x9c3/0x11e0 net/netfilter/nfnetlink.c:302
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543
nfnetlink_rcv+0x1b4/0x430 net/netfilter/nfnetlink.c:659
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367
netlink_sendmsg+0x8bb/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0xab5/0xc90 net/socket.c:2584
___sys_sendmsg+0x135/0x1e0 net/socket.c:2638
__sys_sendmsg+0x117/0x1f0 net/socket.c:2667
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6f/0x77
Memory state around the buggy address:
ffff88801e257f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88801e257f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88801e258000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88801e258080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88801e258100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
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If the report is a duplicate of another one, reply with:
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If you want to undo deduplication, reply with:
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syzbot found the following issue on:
HEAD commit: 021533194476 Kconfig: Disable -Wstringop-overflow for GCC ..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=167d4d40180000
kernel config: https://syzkaller.appspot.com/x/.config?x=98e99addccbcfc7f
dashboard link: https://syzkaller.appspot.com/bug?extid=72e72fabc7bc24d0d357
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
CC: [b...@alien8.de dave....@linux.intel.com h...@zytor.com linux-...@vger.kernel.org mi...@redhat.com tg...@linutronix.de x...@kernel.org]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ef16119062c3/disk-02153319.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ed68dccd3f36/vmlinux-02153319.xz
kernel image: https://storage.googleapis.com/syzbot-assets/12cc448a832c/bzImage-02153319.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+72e72f...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: slab-use-after-free in atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
BUG: KASAN: slab-use-after-free in hash_ipport4_gc+0xce/0x460 net/netfilter/ipset/ip_set_hash_gen.h:572
Write of size 4 at addr ffff88801e258004 by task kworker/1:4/5126
CPU: 1 PID: 5126 Comm: kworker/1:4 Not tainted 6.8.0-rc2-syzkaller-00199-g021533194476 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_power_efficient hash_ipport4_gc
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:488
kasan_report+0xda/0x110 mm/kasan/report.c:601
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline]
hash_ipport4_gc+0xce/0x460 net/netfilter/ipset/ip_set_hash_gen.h:572
process_one_work+0x889/0x15e0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x12a0 kernel/workqueue.c:2787
kthread+0x2c6/0x3b0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
</TASK>
Allocated by task 7869:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:314 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:340
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3813 [inline]
slab_alloc_node mm/slub.c:3860 [inline]
kmem_cache_alloc_node+0x177/0x350 mm/slub.c:3903
kmalloc_reserve+0x16a/0x260 net/core/skbuff.c:560
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
__netdev_alloc_skb+0x72/0x3f0 net/core/skbuff.c:715
netdev_alloc_skb include/linux/skbuff.h:3235 [inline]
dev_alloc_skb include/linux/skbuff.h:3248 [inline]
__ieee80211_beacon_get+0xc33/0x16e0 net/mac80211/tx.c:5442
ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5564
ieee80211_beacon_get include/net/mac80211.h:5452 [inline]
mac80211_hwsim_beacon_tx+0x3f6/0x740 drivers/net/wireless/virtual/mac80211_hwsim.c:2275
__iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:767
ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:803
mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2305
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x203/0xc30 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769
__do_softirq+0x21c/0x8e7 kernel/softirq.c:553
Freed by task 7869:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640
poison_slab_object mm/kasan/common.c:241 [inline]
__kasan_slab_free+0x121/0x1c0 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]
kmem_cache_free+0x129/0x360 mm/slub.c:4363
skb_kfree_head net/core/skbuff.c:984 [inline]
skb_kfree_head net/core/skbuff.c:981 [inline]
skb_free_head+0x17f/0x1b0 net/core/skbuff.c:998
skb_release_data+0x5c0/0x880 net/core/skbuff.c:1028
skb_release_all net/core/skbuff.c:1094 [inline]
__kfree_skb net/core/skbuff.c:1108 [inline]
consume_skb net/core/skbuff.c:1324 [inline]
consume_skb+0xd2/0x170 net/core/skbuff.c:1318
mac80211_hwsim_tx_frame+0x1f3/0x2a0 drivers/net/wireless/virtual/mac80211_hwsim.c:2187
mac80211_hwsim_beacon_tx+0x41b/0x740 drivers/net/wireless/virtual/mac80211_hwsim.c:2279
__iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:767
ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:803
mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2305
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x203/0xc30 kernel/time/hrtimer.c:1752
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769
__do_softirq+0x21c/0x8e7 kernel/softirq.c:553
The buggy address belongs to the object at ffff88801e258000
which belongs to the cache skbuff_small_head of size 640
The buggy address is located 4 bytes inside of
freed 640-byte region [ffff88801e258000, ffff88801e258280)
The buggy address belongs to the physical page:
page:ffffea0000789600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1e258
head:ffffea0000789600 order:2 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff8880192e68c0 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000150015 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1f2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_MEMALLOC|__GFP_HARDWALL), pid 7869, tgid 7863 (syz-executor.3), ts 444116522636, free_ts 442727496352
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d4/0x350 mm/page_alloc.c:1533
prep_new_page mm/page_alloc.c:1540 [inline]
get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3311
__alloc_pages+0x22f/0x2440 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 mm/slub.c:2190 [inline]
allocate_slab mm/slub.c:2354 [inline]
new_slab+0xcc/0x3a0 mm/slub.c:2407
___slab_alloc+0x4af/0x19a0 mm/slub.c:3540
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3625
__slab_alloc_node mm/slub.c:3678 [inline]
slab_alloc_node mm/slub.c:3850 [inline]
kmem_cache_alloc_node+0x10a/0x350 mm/slub.c:3903
kmalloc_reserve+0x16a/0x260 net/core/skbuff.c:560
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
__netdev_alloc_skb+0x72/0x3f0 net/core/skbuff.c:715
netdev_alloc_skb include/linux/skbuff.h:3235 [inline]
dev_alloc_skb include/linux/skbuff.h:3248 [inline]
__ieee80211_beacon_get+0xc33/0x16e0 net/mac80211/tx.c:5442
ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5564
ieee80211_beacon_get include/net/mac80211.h:5452 [inline]
mac80211_hwsim_beacon_tx+0x3f6/0x740 drivers/net/wireless/virtual/mac80211_hwsim.c:2275
__iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:767
ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:803
mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2305
page last free pid 7865 tgid 7864 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+0x527/0xb10 mm/page_alloc.c:2346
free_unref_page+0x33/0x3c0 mm/page_alloc.c:2486
__folio_put+0xeb/0x110 mm/swap.c:127
kvfree+0x47/0x50 mm/util.c:663
hash_ipport4_destroy+0xae/0x3a0 net/netfilter/ipset/ip_set_hash_gen.h:455
ip_set_create+0xd9f/0x1360 net/netfilter/ipset/ip_set_core.c:1157
nfnetlink_rcv_msg+0x9c3/0x11e0 net/netfilter/nfnetlink.c:302
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543
nfnetlink_rcv+0x1b4/0x430 net/netfilter/nfnetlink.c:659
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367
netlink_sendmsg+0x8bb/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0xab5/0xc90 net/socket.c:2584
___sys_sendmsg+0x135/0x1e0 net/socket.c:2638
__sys_sendmsg+0x117/0x1f0 net/socket.c:2667
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6f/0x77
Memory state around the buggy address:
ffff88801e257f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88801e257f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88801e258000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88801e258080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88801e258100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
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