==================================================================
BUG: KASAN: slab-use-after-free in tcx_entry include/net/tcx.h:36 [inline]
BUG: KASAN: slab-use-after-free in sch_handle_ingress net/core/dev.c:3990 [inline]
BUG: KASAN: slab-use-after-free in __netif_receive_skb_core.constprop.0+0x3e0e/0x3f20 net/core/dev.c:5373
Read of size 8 at addr ffff88807d01e208 by task syz-executor258/5285
CPU: 0 PID: 5285 Comm: syz-executor258 Not tainted 6.5.0-rc2-next-20230721-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
__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:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
tcx_entry include/net/tcx.h:36 [inline]
sch_handle_ingress net/core/dev.c:3990 [inline]
__netif_receive_skb_core.constprop.0+0x3e0e/0x3f20 net/core/dev.c:5373
__netif_receive_skb_list_core+0x343/0x8a0 net/core/dev.c:5589
__netif_receive_skb_list net/core/dev.c:5656 [inline]
netif_receive_skb_list_internal+0x76b/0xe00 net/core/dev.c:5747
netif_receive_skb_list+0x4f/0x430 net/core/dev.c:5799
ieee80211_rx_napi+0x37f/0x400 net/mac80211/rx.c:5410
ieee80211_rx include/net/mac80211.h:4949 [inline]
ieee80211_tasklet_handler+0xd2/0x130 net/mac80211/main.c:316
tasklet_action_common.constprop.0+0x242/0x3d0 kernel/softirq.c:780
__do_softirq+0x218/0x965 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu kernel/softirq.c:632 [inline]
irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:unwind_next_frame+0xe50/0x2020 arch/x86/kernel/unwind_orc.c:673
Code: 92 c0 84 c1 74 0b 48 39 5c 24 10 0f 83 82 08 00 00 bf 01 00 00 00 e8 ef ba 1f 00 65 8b 05 70 ba c9 7e 85 c0 0f 84 5f 08 00 00 01 00 00 00 e9 e6 f1 ff ff ba 28 00 00 00 4c 89 f6 4c 89 ef 48
RSP: 0018:ffffc90003f3f878 EFLAGS: 00000286
RAX: 0000000080000000 RBX: ffffc90003f3f9d8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffc90003f3f9c8 RDI: 0000000000000001
RBP: ffffc90003f38000 R08: ffffc90003f3f96c R09: ffffffff8f31fd70
R10: ffffc90003f3f938 R11: 00000000000031c0 R12: ffffc90003f3f988
R13: ffffc90003f3f938 R14: ffffc90003f3f9d8 R15: ffffc90003f3f9d0
__unwind_start+0x457/0x7e0 arch/x86/kernel/unwind_orc.c:760
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x6d/0xf0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc_lru+0x21a/0x630 mm/slub.c:3509
__d_alloc+0x32/0xac0 fs/dcache.c:1769
d_alloc_pseudo+0x1c/0x70 fs/dcache.c:1899
alloc_file_pseudo+0xdc/0x240 fs/file_table.c:329
sock_alloc_file+0x50/0x1d0 net/socket.c:466
sock_map_fd net/socket.c:491 [inline]
__sys_socket+0x1b0/0x250 net/socket.c:1660
__do_sys_socket net/socket.c:1665 [inline]
__se_sys_socket net/socket.c:1663 [inline]
__x64_sys_socket+0x72/0xb0 net/socket.c:1663
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3c9e6e72e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffffe5633f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3c9e6e72e9
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000c00000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000f9bf
R13: 00007ffffe56341c R14: 00007ffffe563460 R15: 00007ffffe563450
Allocated by task 5049:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383
kmalloc include/linux/slab.h:599 [inline]
kzalloc include/linux/slab.h:720 [inline]
tcx_entry_create include/net/tcx.h:85 [inline]
tcx_entry_fetch_or_create include/net/tcx.h:106 [inline]
tcx_entry_fetch_or_create include/net/tcx.h:100 [inline]
ingress_init+0x2e9/0x7d0 net/sched/sch_ingress.c:91
qdisc_create+0x4f7/0x10a0 net/sched/sch_api.c:1326
tc_modify_qdisc+0xab3/0x1bf0 net/sched/sch_api.c:1703
rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6423
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2546
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1911
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 4452:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x15e/0x1b0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:162 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
kmem_cache_free_bulk.part.0+0x256/0x6c0 mm/slub.c:3927
kfree_bulk include/linux/slab.h:516 [inline]
kvfree_rcu_bulk+0x446/0x570 kernel/rcu/tree.c:2962
kvfree_rcu_drain_ready kernel/rcu/tree.c:3136 [inline]
kfree_rcu_monitor+0x47b/0x12d0 kernel/rcu/tree.c:3154
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
worker_thread+0x687/0x1110 kernel/workqueue.c:2751
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
Last potentially related work creation:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
__kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492
kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3372
tcx_entry_free include/net/tcx.h:96 [inline]
ingress_destroy+0x39f/0x520 net/sched/sch_ingress.c:127
__qdisc_destroy+0xc4/0x450 net/sched/sch_generic.c:1063
qdisc_destroy+0x4f/0x60 net/sched/sch_generic.c:1078
qdisc_graft+0x6f9/0x1680 net/sched/sch_api.c:1132
tc_modify_qdisc+0xcd2/0x1bf0 net/sched/sch_api.c:1731
rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6423
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2546
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1911
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
__sys_sendmsg+0x117/0x1e0 net/socket.c:2577
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff88807d01e000
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 520 bytes inside of
freed 2048-byte region [ffff88807d01e000, ffff88807d01e800)
The buggy address belongs to the physical page:
page:ffffea0001f40600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d018
head:ffffea0001f40600 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000010200 ffff888012842000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5048, tgid 5048 (syz-executor258), ts 59105675805, free_ts 58866956614
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1569
prep_new_page mm/page_alloc.c:1576 [inline]
get_page_from_freelist+0x10d7/0x31b0 mm/page_alloc.c:3256
__alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4512
alloc_pages+0x1a9/0x270 mm/mempolicy.c:2279
alloc_slab_page mm/slub.c:1870 [inline]
allocate_slab+0x24e/0x380 mm/slub.c:2017
new_slab mm/slub.c:2070 [inline]
___slab_alloc+0x8bc/0x1570 mm/slub.c:3223
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
__slab_alloc_node mm/slub.c:3375 [inline]
slab_alloc_node mm/slub.c:3468 [inline]
__kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3517
__do_kmalloc_node mm/slab_common.c:1023 [inline]
__kmalloc+0x4f/0x100 mm/slab_common.c:1037
kmalloc include/linux/slab.h:603 [inline]
sk_prot_alloc+0x1a4/0x2a0 net/core/sock.c:2068
sk_alloc+0x3a/0x7f0 net/core/sock.c:2121
__netlink_create+0x63/0x380 net/netlink/af_netlink.c:649
netlink_create+0x3ac/0x600 net/netlink/af_netlink.c:712
__sock_create+0x334/0x810 net/socket.c:1536
sock_create net/socket.c:1587 [inline]
__sys_socket_create net/socket.c:1624 [inline]
__sys_socket+0x13d/0x250 net/socket.c:1652
__do_sys_socket net/socket.c:1665 [inline]
__se_sys_socket net/socket.c:1663 [inline]
__x64_sys_socket+0x72/0xb0 net/socket.c:1663
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1160 [inline]
free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2383
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2478
__unfreeze_partials+0x21d/0x240 mm/slub.c:2655
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3523
__alloc_skb+0x287/0x330 net/core/skbuff.c:634
alloc_skb include/linux/skbuff.h:1289 [inline]
nlmsg_new include/net/netlink.h:1003 [inline]
netlink_ack+0x305/0x1370 net/netlink/af_netlink.c:2483
netlink_rcv_skb+0x345/0x440 net/netlink/af_netlink.c:2552
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078
netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1911
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:748
__sys_sendto+0x255/0x340 net/socket.c:2134
__do_sys_sendto net/socket.c:2146 [inline]
__se_sys_sendto net/socket.c:2142 [inline]
__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2142
Memory state around the buggy address:
ffff88807d01e100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807d01e180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88807d01e200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88807d01e280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88807d01e300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 92 xchg %eax,%edx
1: c0 84 c1 74 0b 48 39 rolb $0x5c,0x39480b74(%rcx,%rax,8)
8: 5c
9: 24 10 and $0x10,%al
b: 0f 83 82 08 00 00 jae 0x893
11: bf 01 00 00 00 mov $0x1,%edi
16: e8 ef ba 1f 00 call 0x1fbb0a
1b: 65 8b 05 70 ba c9 7e mov %gs:0x7ec9ba70(%rip),%eax # 0x7ec9ba92
22: 85 c0 test %eax,%eax
24: 0f 84 5f 08 00 00 je 0x889
* 2a: b8 01 00 00 00 mov $0x1,%eax <-- trapping instruction
2f: e9 e6 f1 ff ff jmp 0xfffff21a
34: ba 28 00 00 00 mov $0x28,%edx
39: 4c 89 f6 mov %r14,%rsi
3c: 4c 89 ef mov %r13,%rdi
3f: 48 rex.W