==================================================================
BUG: KASAN: global-out-of-bounds in fib6_add_rt2node net/ipv6/ip6_fib.c:1102 [inline]
BUG: KASAN: global-out-of-bounds in fib6_add+0x3ced/0x4b60 net/ipv6/ip6_fib.c:1488
Read of size 4 at addr ffffffff9af87bf0 by task kworker/u8:12/8241

CPU: 1 UID: 0 PID: 8241 Comm: kworker/u8:12 Not tainted 6.15.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
Workqueue: events_unbound linkwatch_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 fib6_add_rt2node net/ipv6/ip6_fib.c:1102 [inline]
 fib6_add+0x3ced/0x4b60 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1351 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3900
 addrconf_prefix_route+0x2fd/0x510 net/ipv6/addrconf.c:2487
 addrconf_add_linklocal+0x329/0x500 net/ipv6/addrconf.c:3315
 addrconf_addr_gen+0x36d/0x3c0 net/ipv6/addrconf.c:3444
 addrconf_dev_config net/ipv6/addrconf.c:3490 [inline]
 addrconf_init_auto_addrs+0x446/0x820 net/ipv6/addrconf.c:3568
 addrconf_notify+0x6e2/0x19e0 net/ipv6/addrconf.c:3741
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2176
 netif_state_change+0x165/0x3b0 net/core/dev.c:1530
 linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:186
 __linkwatch_run_queue+0x2aa/0x8a0 net/core/link_watch.c:244
 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:304
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

The buggy address belongs to the variable:
 __key.0+0x10/0x40

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1af87
flags: 0xfff00000002000(reserved|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002000 ffffea00006be1c8 ffffea00006be1c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffffffff9af87a80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
 ffffffff9af87b00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
>ffffffff9af87b80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 f9 f9
                                                             ^
 ffffffff9af87c00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
 ffffffff9af87c80: 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9
==================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in fib6_add_rt2node net/ipv6/ip6_fib.c:1096 [inline]
BUG: KASAN: global-out-of-bounds in fib6_add+0x3cdc/0x4b60 net/ipv6/ip6_fib.c:1488
Read of size 8 at addr ffffffff9af87b68 by task kworker/u8:12/8241

CPU: 1 UID: 0 PID: 8241 Comm: kworker/u8:12 Tainted: G    B               6.15.0-rc5-syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
Workqueue: events_unbound linkwatch_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 fib6_add_rt2node net/ipv6/ip6_fib.c:1096 [inline]
 fib6_add+0x3cdc/0x4b60 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1351 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3900
 addrconf_prefix_route+0x2fd/0x510 net/ipv6/addrconf.c:2487
 addrconf_add_linklocal+0x329/0x500 net/ipv6/addrconf.c:3315
 addrconf_addr_gen+0x36d/0x3c0 net/ipv6/addrconf.c:3444
 addrconf_dev_config net/ipv6/addrconf.c:3490 [inline]
 addrconf_init_auto_addrs+0x446/0x820 net/ipv6/addrconf.c:3568
 addrconf_notify+0x6e2/0x19e0 net/ipv6/addrconf.c:3741
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2176
 netif_state_change+0x165/0x3b0 net/core/dev.c:1530
 linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:186
 __linkwatch_run_queue+0x2aa/0x8a0 net/core/link_watch.c:244
 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:304
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

The buggy address belongs to the variable:
 binder_devices+0x8/0x40

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1af87
flags: 0xfff00000002000(reserved|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002000 ffffea00006be1c8 ffffea00006be1c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffffffff9af87a00: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
 ffffffff9af87a80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
>ffffffff9af87b00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
                                                          ^
 ffffffff9af87b80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 f9 f9
 ffffffff9af87c00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
==================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in fib6_add_rt2node net/ipv6/ip6_fib.c:1257 [inline]
BUG: KASAN: global-out-of-bounds in fib6_add+0x4452/0x4b60 net/ipv6/ip6_fib.c:1488
Write of size 8 at addr ffffffff9af87b68 by task kworker/u8:12/8241

CPU: 1 UID: 0 PID: 8241 Comm: kworker/u8:12 Tainted: G    B               6.15.0-rc5-syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
Workqueue: events_unbound linkwatch_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 fib6_add_rt2node net/ipv6/ip6_fib.c:1257 [inline]
 fib6_add+0x4452/0x4b60 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1351 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3900
 addrconf_prefix_route+0x2fd/0x510 net/ipv6/addrconf.c:2487
 addrconf_add_linklocal+0x329/0x500 net/ipv6/addrconf.c:3315
 addrconf_addr_gen+0x36d/0x3c0 net/ipv6/addrconf.c:3444
 addrconf_dev_config net/ipv6/addrconf.c:3490 [inline]
 addrconf_init_auto_addrs+0x446/0x820 net/ipv6/addrconf.c:3568
 addrconf_notify+0x6e2/0x19e0 net/ipv6/addrconf.c:3741
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2176
 netif_state_change+0x165/0x3b0 net/core/dev.c:1530
 linkwatch_do_dev+0x12b/0x160 net/core/link_watch.c:186
 __linkwatch_run_queue+0x2aa/0x8a0 net/core/link_watch.c:244
 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:304
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

The buggy address belongs to the variable:
 binder_devices+0x8/0x40

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1af87
flags: 0xfff00000002000(reserved|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002000 ffffea00006be1c8 ffffea00006be1c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffffffff9af87a00: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
 ffffffff9af87a80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
>ffffffff9af87b00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
                                                          ^
 ffffffff9af87b80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 f9 f9
 ffffffff9af87c00: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
==================================================================