==================================================================
BUG: KASAN: stack-out-of-bounds in jhash2 include/linux/jhash.h:138 [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+0x38d/0x460 net/xfrm/xfrm_hash.h:95
Read of size 4 at addr ffffc90000007ab8 by task swapper/0/0

CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.152-syzkaller-1069667-g70e1a731d986 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description+0x87/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:444
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 jhash2 include/linux/jhash.h:138 [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+0x38d/0x460 net/xfrm/xfrm_hash.h:95
 xfrm_dst_hash net/xfrm/xfrm_state.c:63 [inline]
 xfrm_state_find+0x2f1/0x2f70 net/xfrm/xfrm_state.c:1092
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2393 [inline]
 xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2438 [inline]
 xfrm_resolve_and_create_bundle+0x65a/0x2b70 net/xfrm/xfrm_policy.c:2731
 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2966 [inline]
 xfrm_lookup_with_ifid+0x6fc/0x20d0 net/xfrm/xfrm_policy.c:3097
 xfrm_lookup net/xfrm/xfrm_policy.c:3194 [inline]
 xfrm_lookup_route+0x3b/0x160 net/xfrm/xfrm_policy.c:3205
 ip_route_output_flow+0x1ef/0x310 net/ipv4/route.c:2886
 ip_route_output_ports include/net/route.h:169 [inline]
 igmpv3_newpack+0x437/0x10d0 net/ipv4/igmp.c:372
 add_grhead+0x84/0x330 net/ipv4/igmp.c:443
 add_grec+0x12ca/0x15d0 net/ipv4/igmp.c:577
 igmpv3_send_cr net/ipv4/igmp.c:714 [inline]
 igmp_ifc_timer_expire+0x83b/0xf50 net/ipv4/igmp.c:813
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427
 expire_timers kernel/time/timer.c:1472 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1743
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756
 __do_softirq+0x26d/0x5bf kernel/softirq.c:565
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:40 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:75 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:570 [inline]
RIP: 0010:acpi_idle_enter+0x416/0x760 drivers/acpi/processor_idle.c:705
Code: 89 de 48 83 e6 08 31 ff e8 e7 1b 8b fc 48 83 e3 08 0f 85 b0 00 00 00 0f 1f 44 00 00 e8 93 17 8b fc 0f 00 2d ac 36 c4 00 fb f4 <fa> e9 e1 00 00 00 49 83 c7 04 4c 89 f8 48 c1 e8 03 42 0f b6 04 30
RSP: 0018:ffffffff86407bf0 EFLAGS: 000002d3
RAX: ffffffff84e528ad RBX: 0000000000000000 RCX: ffffffff8641d280
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff86407c30 R08: ffffffff84e52899 R09: fffffbfff0c83a51
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888102dea804 R14: dffffc0000000000 R15: ffff888106bff864
 cpuidle_enter_state+0x5e1/0x1550 drivers/cpuidle/cpuidle.c:249
 cpuidle_enter+0x5f/0xa0 drivers/cpuidle/cpuidle.c:364
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x36b/0x5d0 kernel/sched/idle.c:306
 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:403
 rest_init+0x10b/0x130 init/main.c:738
 arch_call_rest_init+0xe/0x10 init/main.c:890
 start_kernel+0x462/0x4ce init/main.c:1137
 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:527
 x86_64_start_kernel+0x5b/0x5e arch/x86/kernel/head64.c:508
 secondary_startup_64_no_verify+0xb1/0xbb
 </TASK>


Memory state around the buggy address:
 ffffc90000007980: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90000007a00: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
>ffffc90000007a80: 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 00 00 00 00
                                        ^
 ffffc90000007b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90000007b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
   0:	89 de                	mov    %ebx,%esi
   2:	48 83 e6 08          	and    $0x8,%rsi
   6:	31 ff                	xor    %edi,%edi
   8:	e8 e7 1b 8b fc       	call   0xfc8b1bf4
   d:	48 83 e3 08          	and    $0x8,%rbx
  11:	0f 85 b0 00 00 00    	jne    0xc7
  17:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  1c:	e8 93 17 8b fc       	call   0xfc8b17b4
  21:	0f 00 2d ac 36 c4 00 	verw   0xc436ac(%rip)        # 0xc436d4
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	fa                   	cli <-- trapping instruction
  2b:	e9 e1 00 00 00       	jmp    0x111
  30:	49 83 c7 04          	add    $0x4,%r15
  34:	4c 89 f8             	mov    %r15,%rax
  37:	48 c1 e8 03          	shr    $0x3,%rax
  3b:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax