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BUG: KASAN: slab-out-of-bounds in is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
BUG: KASAN: slab-out-of-bounds in tc_setup_flow_action+0xb9d/0x3430 net/sched/cls_api.c:3625
Read of size 8 at addr ffff8881162f31c0 by task syz.2.16/562

CPU: 0 PID: 562 Comm: syz.2.16 Not tainted 5.15.173-syzkaller-00047-ga08241812f21 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106
 print_address_description+0x87/0x3a0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x177/0x1c0 mm/kasan/report.c:451
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 is_tcf_tunnel_set include/net/tc_act/tc_tunnel_key.h:33 [inline]
 tc_setup_flow_action+0xb9d/0x3430 net/sched/cls_api.c:3625
 mall_replace_hw_filter+0x394/0xc20 net/sched/cls_matchall.c:100
 mall_change+0x56e/0x780 net/sched/cls_matchall.c:235
 tc_new_tfilter+0x151a/0x1c00 net/sched/cls_api.c:2131
 rtnetlink_rcv_msg+0x776/0xc40 net/core/rtnetlink.c:5638
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2489
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x8e5/0xad0 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0xa0c/0xd20 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526
 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fe2182e1d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe217d5b038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe2184d1fa0 RCX: 00007fe2182e1d29
RDX: 0000000000000000 RSI: 0000000020000580 RDI: 0000000000000003
RBP: 00007fe21835db08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe2184d1fa0 R15: 00007ffff4132888
 </TASK>

Allocated by task 562:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:513
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 __kmalloc+0x13a/0x270 mm/slub.c:4407
 kmalloc include/linux/slab.h:596 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 tcf_idr_create+0x5f/0x780 net/sched/act_api.c:478
 tcf_idr_create_from_flags+0x5f/0x70 net/sched/act_api.c:536
 tcf_gact_init+0x3cd/0x6e0 net/sched/act_gact.c:102
 tcf_action_init_1+0x50f/0x7f0 net/sched/act_api.c:1071
 tcf_action_init+0x306/0x840 net/sched/act_api.c:1130
 tcf_exts_validate+0x236/0x520 net/sched/cls_api.c:3073
 mall_set_parms+0x44/0x4b0 net/sched/cls_matchall.c:171
 mall_change+0x495/0x780 net/sched/cls_matchall.c:229
 tc_new_tfilter+0x151a/0x1c00 net/sched/cls_api.c:2131
 rtnetlink_rcv_msg+0x776/0xc40 net/core/rtnetlink.c:5638
 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2489
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x8e5/0xad0 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0xa0c/0xd20 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526
 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff8881162f3100
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes to the right of
 192-byte region [ffff8881162f3100, ffff8881162f31c0)
The buggy address belongs to the page:
page:ffffea000458bcc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1162f3
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 ffffea000458b980 0000000300000003 ffff888100041a00
raw: 0000000000000000 0000000080100010 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 181, ts 5312040799, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x15d/0x170 mm/page_alloc.c:2420
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x3bb6/0x3c90 mm/page_alloc.c:4192
 __alloc_pages+0x38a/0x7b0 mm/page_alloc.c:5465
 allocate_slab mm/slub.c:1912 [inline]
 new_slab+0x92/0x490 mm/slub.c:1975
 ___slab_alloc+0x39e/0x830 mm/slub.c:3008
 __slab_alloc+0x4a/0x90 mm/slub.c:3095
 slab_alloc_node mm/slub.c:3186 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc_trace+0x142/0x210 mm/slub.c:3245
 kmalloc include/linux/slab.h:591 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 kernfs_fop_open+0x324/0xaa0 fs/kernfs/file.c:628
 do_dentry_open+0x812/0xec0 fs/open.c:826
 vfs_open+0x73/0x80 fs/open.c:956
 do_open fs/namei.c:3608 [inline]
 path_openat+0x26c6/0x2f10 fs/namei.c:3742
 do_filp_open+0x21c/0x460 fs/namei.c:3769
 do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
 do_sys_open fs/open.c:1269 [inline]
 __do_sys_openat fs/open.c:1285 [inline]
 __se_sys_openat fs/open.c:1280 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1280
 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881162f3080: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff8881162f3100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881162f3180: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
                                           ^
 ffff8881162f3200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881162f3280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
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