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BUG: KASAN: stack-out-of-bounds in jhash2 include/linux/jhash.h:137 [inline]
BUG: KASAN: stack-out-of-bounds in __xfrm6_addr_hash net/xfrm/xfrm_hash.h:16 [inline]
BUG: KASAN: stack-out-of-bounds in __xfrm6_daddr_saddr_hash net/xfrm/xfrm_hash.h:29 [inline]
BUG: KASAN: stack-out-of-bounds in __xfrm_dst_hash net/xfrm/xfrm_hash.h:95 [inline]
BUG: KASAN: stack-out-of-bounds in xfrm_dst_hash net/xfrm/xfrm_state.c:63 [inline]
BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x2f65/0x34a0 net/xfrm/xfrm_state.c:1063
Read of size 4 at addr ffff8881f6f09a18 by task swapper/1/0

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.219-syzkaller-00012-ga8aad8851131 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 print_address_description+0x8c/0x630 mm/kasan/report.c:384
 __kasan_report+0xf6/0x130 mm/kasan/report.c:516
 kasan_report+0x30/0x60 mm/kasan/common.c:653
 jhash2 include/linux/jhash.h:137 [inline]
 __xfrm6_addr_hash net/xfrm/xfrm_hash.h:16 [inline]
 __xfrm6_daddr_saddr_hash net/xfrm/xfrm_hash.h:29 [inline]
 __xfrm_dst_hash net/xfrm/xfrm_hash.h:95 [inline]
 xfrm_dst_hash net/xfrm/xfrm_state.c:63 [inline]
 xfrm_state_find+0x2f65/0x34a0 net/xfrm/xfrm_state.c:1063
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2397 [inline]
 xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2442 [inline]
 xfrm_resolve_and_create_bundle+0x6fc/0x3290 net/xfrm/xfrm_policy.c:2736
 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2960 [inline]
 xfrm_lookup_with_ifid+0x78a/0x2120 net/xfrm/xfrm_policy.c:3091
 xfrm_lookup net/xfrm/xfrm_policy.c:3183 [inline]
 xfrm_lookup_route+0x37/0x170 net/xfrm/xfrm_policy.c:3194
 ip_route_output_flow+0x1f6/0x320 net/ipv4/route.c:2756
 ip_route_output_ports include/net/route.h:163 [inline]
 igmpv3_newpack+0x414/0x1040 net/ipv4/igmp.c:371
 add_grhead+0x75/0x2b0 net/ipv4/igmp.c:442
 add_grec+0x12f8/0x1600 net/ipv4/igmp.c:576
 igmpv3_send_cr net/ipv4/igmp.c:713 [inline]
 igmp_ifc_timer_expire+0x823/0xf10 net/ipv4/igmp.c:811
 call_timer_fn+0x31/0x350 kernel/time/timer.c:1418
 expire_timers+0x21e/0x400 kernel/time/timer.c:1463
 __run_timers+0x5e0/0x700 kernel/time/timer.c:1787
 run_timer_softirq+0x46/0x80 kernel/time/timer.c:1800
 __do_softirq+0x23e/0x643 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x113/0x440 arch/x86/kernel/apic/apic.c:1150
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>

The buggy address belongs to the page:
page:ffffea0007dbc240 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x8000000000001000(reserved)
raw: 8000000000001000 ffffea0007dbc248 ffffea0007dbc248 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:
 ffff8881f6f09900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881f6f09980: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00
>ffff8881f6f09a00: 00 00 00 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00
                            ^
 ffff8881f6f09a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881f6f09b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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