==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:102 [inline]
BUG: KASAN: use-after-free in atomic_long_add_return_acquire include/linux/atomic/atomic-instrumented.h:1309 [inline]
BUG: KASAN: use-after-free in rwsem_read_trylock kernel/locking/rwsem.c:243 [inline]
BUG: KASAN: use-after-free in __down_read_common kernel/locking/rwsem.c:1259 [inline]
BUG: KASAN: use-after-free in __down_read kernel/locking/rwsem.c:1269 [inline]
BUG: KASAN: use-after-free in down_read+0xa9/0x450 kernel/locking/rwsem.c:1511
Write of size 8 at addr ffff88807460d208 by task syz-executor.4/8536

CPU: 0 PID: 8536 Comm: syz-executor.4 Not tainted 6.1.0-rc6-syzkaller-00176-g08ad43d554ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15e/0x461 mm/kasan/report.c:395
 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x141/0x190 mm/kasan/generic.c:189
 instrument_atomic_read_write include/linux/instrumented.h:102 [inline]
 atomic_long_add_return_acquire include/linux/atomic/atomic-instrumented.h:1309 [inline]
 rwsem_read_trylock kernel/locking/rwsem.c:243 [inline]
 __down_read_common kernel/locking/rwsem.c:1259 [inline]
 __down_read kernel/locking/rwsem.c:1269 [inline]
 down_read+0xa9/0x450 kernel/locking/rwsem.c:1511
 hugetlb_vma_lock_read mm/hugetlb.c:6820 [inline]
 hugetlb_fault+0x40e/0x2060 mm/hugetlb.c:5859
 follow_hugetlb_page+0x3f7/0x1860 mm/hugetlb.c:6305
 __get_user_pages+0x2cb/0xf10 mm/gup.c:1202
 populate_vma_page_range+0x241/0x320 mm/gup.c:1587
 __mm_populate+0x105/0x3b0 mm/gup.c:1701
 mm_populate include/linux/mm.h:2744 [inline]
 vm_mmap_pgoff+0x201/0x280 mm/util.c:525
 ksys_mmap_pgoff+0x1c7/0x5a0 mm/mmap.c:1458
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe546c8c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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:00007fe547ac6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fe546dabf80 RCX: 00007fe546c8c0d9
RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fe546ce7ae9 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000068831 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd644ebb9f R14: 00007fe547ac6300 R15: 0000000000022000
 </TASK>

Allocated by task 8536:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:371 [inline]
 ____kasan_kmalloc mm/kasan/common.c:330 [inline]
 __kasan_kmalloc+0xa3/0xb0 mm/kasan/common.c:380
 kmalloc include/linux/slab.h:553 [inline]
 hugetlb_vma_lock_alloc.part.0+0x3f/0x130 mm/hugetlb.c:6930
 hugetlb_vma_lock_alloc mm/hugetlb.c:6686 [inline]
 hugetlb_reserve_pages+0xa43/0xe90 mm/hugetlb.c:6555
 hugetlbfs_file_mmap+0x410/0x5c0 fs/hugetlbfs/inode.c:167
 call_mmap include/linux/fs.h:2196 [inline]
 mmap_region+0x6c3/0x1dd0 mm/mmap.c:2625
 do_mmap+0x831/0xf60 mm/mmap.c:1412
 vm_mmap_pgoff+0x1af/0x280 mm/util.c:520
 ksys_mmap_pgoff+0x1c7/0x5a0 mm/mmap.c:1458
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 8542:
 kasan_save_stack+0x22/0x40 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:511
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x13b/0x1a0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:177 [inline]
 __cache_free mm/slab.c:3389 [inline]
 __do_kmem_cache_free mm/slab.c:3585 [inline]
 __kmem_cache_free+0xcd/0x3b0 mm/slab.c:3592
 hugetlb_vma_lock_release mm/hugetlb.c:6875 [inline]
 kref_put include/linux/kref.h:65 [inline]
 __hugetlb_vma_unlock_write_put mm/hugetlb.c:6890 [inline]
 __hugetlb_vma_unlock_write_free mm/hugetlb.c:6898 [inline]
 __unmap_hugepage_range_final+0x2b1/0x350 mm/hugetlb.c:5215
 unmap_single_vma+0x23d/0x2a0 mm/memory.c:1690
 zap_page_range+0x392/0x530 mm/memory.c:1762
 madvise_dontneed_single_vma mm/madvise.c:793 [inline]
 madvise_dontneed_free mm/madvise.c:886 [inline]
 madvise_vma_behavior+0x12df/0x2050 mm/madvise.c:1025
 madvise_walk_vmas+0x1c7/0x2b0 mm/madvise.c:1250
 do_madvise.part.0+0x24a/0x340 mm/madvise.c:1429
 do_madvise mm/madvise.c:1442 [inline]
 __do_sys_madvise mm/madvise.c:1442 [inline]
 __se_sys_madvise mm/madvise.c:1440 [inline]
 __x64_sys_madvise+0x117/0x150 mm/madvise.c:1440
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Last potentially related work creation:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 __kasan_record_aux_stack+0x7b/0x90 mm/kasan/generic.c:481
 insert_work+0x48/0x350 kernel/workqueue.c:1358
 __queue_work+0x693/0x13b0 kernel/workqueue.c:1517
 queue_work_on+0xf2/0x110 kernel/workqueue.c:1545
 queue_work include/linux/workqueue.h:503 [inline]
 addr_event.part.0+0x33e/0x4f0 drivers/infiniband/core/roce_gid_mgmt.c:853
 addr_event drivers/infiniband/core/roce_gid_mgmt.c:824 [inline]
 inet6addr_event+0x142/0x1c0 drivers/infiniband/core/roce_gid_mgmt.c:883
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
 atomic_notifier_call_chain+0x74/0x180 kernel/notifier.c:225
 ipv6_add_addr+0x1266/0x1de0 net/ipv6/addrconf.c:1165
 addrconf_add_linklocal+0x1cc/0x590 net/ipv6/addrconf.c:3215
 addrconf_addr_gen+0x37e/0x3d0 net/ipv6/addrconf.c:3346
 addrconf_dev_config+0x255/0x410 net/ipv6/addrconf.c:3391
 addrconf_notify+0xee0/0x1c80 net/ipv6/addrconf.c:3635
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945
 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
 call_netdevice_notifiers net/core/dev.c:1997 [inline]
 __dev_notify_flags+0x114/0x2c0 net/core/dev.c:8581
 rtnl_configure_link+0x16f/0x240 net/core/rtnetlink.c:3200
 rtnl_newlink_create net/core/rtnetlink.c:3372 [inline]
 __rtnl_newlink+0x10b8/0x17e0 net/core/rtnetlink.c:3581
 rtnl_newlink+0x68/0xa0 net/core/rtnetlink.c:3594
 rtnetlink_rcv_msg+0x43e/0xca0 net/core/rtnetlink.c:6091
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Second to last potentially related work creation:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 __kasan_record_aux_stack+0x7b/0x90 mm/kasan/generic.c:481
 insert_work+0x48/0x350 kernel/workqueue.c:1358
 __queue_work+0x693/0x13b0 kernel/workqueue.c:1517
 queue_work_on+0xf2/0x110 kernel/workqueue.c:1545
 queue_work include/linux/workqueue.h:503 [inline]
 netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:659 [inline]
 netdevice_event+0x5e9/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:802
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945
 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
 call_netdevice_notifiers net/core/dev.c:1997 [inline]
 dev_set_mac_address+0x2d7/0x3e0 net/core/dev.c:8803
 dev_set_mac_address_user+0x31/0x50 net/core/dev.c:8817
 do_setlink+0x18c4/0x3bb0 net/core/rtnetlink.c:2736
 __rtnl_newlink+0xd6a/0x17e0 net/core/rtnetlink.c:3547
 rtnl_newlink+0x68/0xa0 net/core/rtnetlink.c:3594
 rtnetlink_rcv_msg+0x43e/0xca0 net/core/rtnetlink.c:6091
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 __sys_sendto+0x23a/0x340 net/socket.c:2117
 __do_sys_sendto net/socket.c:2129 [inline]
 __se_sys_sendto net/socket.c:2125 [inline]
 __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff88807460d200
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 8 bytes inside of
 192-byte region [ffff88807460d200, ffff88807460d2c0)

The buggy address belongs to the physical page:
page:ffffea0001d18340 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7460d
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea0001d309c8 ffffea0001d70a48 ffff888012040000
raw: 0000000000000000 ffff88807460d000 0000000100000010 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 0x3420c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_HARDWALL|__GFP_THISNODE), pid 3673, tgid 3673 (syz-executor.4), ts 177512476040, free_ts 177509985063
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4288
 __alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5555
 __alloc_pages_node include/linux/gfp.h:223 [inline]
 kmem_getpages mm/slab.c:1363 [inline]
 cache_grow_begin+0x75/0x360 mm/slab.c:2570
 cache_alloc_refill+0x27f/0x380 mm/slab.c:2943
 ____cache_alloc mm/slab.c:3019 [inline]
 ____cache_alloc mm/slab.c:3002 [inline]
 __do_cache_alloc mm/slab.c:3202 [inline]
 slab_alloc_node mm/slab.c:3250 [inline]
 __kmem_cache_alloc_node+0x44a/0x510 mm/slab.c:3549
 kmalloc_trace+0x26/0x60 mm/slab_common.c:1045
 kmalloc include/linux/slab.h:553 [inline]
 netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:643 [inline]
 netdevice_event+0x368/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:802
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945
 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
 call_netdevice_notifiers net/core/dev.c:1997 [inline]
 __dev_notify_flags+0x114/0x2c0 net/core/dev.c:8581
 dev_change_flags+0x116/0x170 net/core/dev.c:8619
 do_setlink+0x9f1/0x3bb0 net/core/rtnetlink.c:2788
 __rtnl_newlink+0xd6a/0x17e0 net/core/rtnetlink.c:3547
 rtnl_newlink+0x68/0xa0 net/core/rtnetlink.c:3594
 rtnetlink_rcv_msg+0x43e/0xca0 net/core/rtnetlink.c:6091
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1509
 free_unref_page_prepare mm/page_alloc.c:3387 [inline]
 free_unref_page+0x1d/0x4d0 mm/page_alloc.c:3483
 slab_destroy mm/slab.c:1615 [inline]
 slabs_destroy+0x85/0xc0 mm/slab.c:1635
 cache_flusharray mm/slab.c:3360 [inline]
 ___cache_free+0x2ac/0x3d0 mm/slab.c:3423
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x4f/0x1a0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x63/0x90 mm/kasan/common.c:302
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slab.c:3257 [inline]
 kmem_cache_alloc_node+0x28f/0x580 mm/slab.c:3537
 __alloc_skb+0x214/0x300 net/core/skbuff.c:497
 alloc_skb include/linux/skbuff.h:1267 [inline]
 alloc_skb_with_frags+0x97/0x6c0 net/core/skbuff.c:6126
 sock_alloc_send_pskb+0x7a7/0x930 net/core/sock.c:2719
 sock_alloc_send_skb include/net/sock.h:1884 [inline]
 mld_newpack.isra.0+0x1b9/0x770 net/ipv6/mcast.c:1748
 add_grhead+0x295/0x340 net/ipv6/mcast.c:1851
 add_grec+0x1082/0x1560 net/ipv6/mcast.c:1989
 mld_send_initial_cr.part.0+0xf6/0x230 net/ipv6/mcast.c:2236
 mld_send_initial_cr net/ipv6/mcast.c:1232 [inline]
 ipv6_mc_dad_complete+0x1d4/0x690 net/ipv6/mcast.c:2247

Memory state around the buggy address:
 ffff88807460d100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807460d180: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff88807460d200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88807460d280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff88807460d300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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