================================================================== 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 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+0x2f9a/0x3510 net/xfrm/xfrm_state.c:1092 Read of size 4 at addr ffffc900001d0a38 by task swapper/1/0 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.78-syzkaller-00911-gc73b4619ad86 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106 print_address_description+0x87/0x3d0 mm/kasan/report.c:256 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0x1a6/0x1f0 mm/kasan/report.c:452 __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 net/xfrm/xfrm_hash.h:95 [inline] xfrm_dst_hash net/xfrm/xfrm_state.c:63 [inline] xfrm_state_find+0x2f9a/0x3510 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+0x66d/0x2c80 net/xfrm/xfrm_policy.c:2731 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2966 [inline] xfrm_lookup_with_ifid+0xa1c/0x2640 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+0x1e7/0x310 net/ipv4/route.c:2889 ip_route_output_ports include/net/route.h:169 [inline] igmpv3_newpack+0x413/0x1080 net/ipv4/igmp.c:369 add_grhead+0x84/0x320 net/ipv4/igmp.c:440 add_grec+0x12f8/0x1600 net/ipv4/igmp.c:574 igmpv3_send_cr net/ipv4/igmp.c:711 [inline] igmp_ifc_timer_expire+0x8b0/0xf90 net/ipv4/igmp.c:810 call_timer_fn+0x35/0x270 kernel/time/timer.c:1427 expire_timers+0x21b/0x3a0 kernel/time/timer.c:1472 __run_timers+0x598/0x6f0 kernel/time/timer.c:1743 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756 __do_softirq+0x27e/0x5dc kernel/softirq.c:565 invoke_softirq+0xb/0x50 kernel/softirq.c:425 __irq_exit_rcu+0x4f/0xb0 kernel/softirq.c:647 irq_exit_rcu+0x9/0x10 kernel/softirq.c:659 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1097 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:553 [inline] RIP: 0010:acpi_idle_enter+0x411/0x6d0 drivers/acpi/processor_idle.c:688 Code: 8b 1b 48 89 de 48 83 e6 08 31 ff e8 19 c2 a8 fc 48 83 e3 08 0f 85 a2 00 00 00 66 90 e8 e8 bc a8 fc 0f 00 2d 11 d5 c5 00 fb f4 e9 98 00 00 00 49 83 c7 04 4c 89 f8 48 c1 e8 03 42 8a 04 30 84 RSP: 0018:ffffc90000157c70 EFLAGS: 000002d3 RAX: ffffffff84c8e2a8 RBX: 0000000000000000 RCX: ffff888100372780 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000157cb0 R08: ffffffff84c8e297 R09: ffffed102006e4f1 R10: ffffed102006e4f1 R11: 1ffff1102006e4f0 R12: 0000000000000001 R13: ffff888103bbd804 R14: dffffc0000000000 R15: ffff888105db5064 cpuidle_enter_state+0x5d0/0x14a0 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+0x379/0x5e0 kernel/sched/idle.c:306 cpu_startup_entry+0x25/0x30 kernel/sched/idle.c:403 start_secondary+0xde/0xf0 arch/x86/kernel/smpboot.c:270 secondary_startup_64_no_verify+0xb1/0xbb Memory state around the buggy address: ffffc900001d0900: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 ffffc900001d0980: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 >ffffc900001d0a00: 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 00 00 00 00 ^ ffffc900001d0a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc900001d0b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== ---------------- Code disassembly (best guess): 0: 8b 1b mov (%rbx),%ebx 2: 48 89 de mov %rbx,%rsi 5: 48 83 e6 08 and $0x8,%rsi 9: 31 ff xor %edi,%edi b: e8 19 c2 a8 fc callq 0xfca8c229 10: 48 83 e3 08 and $0x8,%rbx 14: 0f 85 a2 00 00 00 jne 0xbc 1a: 66 90 xchg %ax,%ax 1c: e8 e8 bc a8 fc callq 0xfca8bd09 21: 0f 00 2d 11 d5 c5 00 verw 0xc5d511(%rip) # 0xc5d539 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: e9 98 00 00 00 jmpq 0xc8 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 8a 04 30 mov (%rax,%r14,1),%al 3f: 84 .byte 0x84