Warning: Permanently added '10.128.1.103' (ED25519) to the list of known hosts.
2026/10/25 11:50:06 parsed 1 programs
2026/10/25 11:50:06 serving rpc on tcp://40635
[ 22.745413][ T28] audit: type=1400 audit(1792929006.642:64): avc: denied { node_bind } for pid=295 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1
[ 22.766524][ T28] audit: type=1400 audit(1792929006.642:65): avc: denied { module_request } for pid=295 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1
[ 23.520376][ T28] audit: type=1400 audit(1792929007.412:66): avc: denied { mounton } for pid=301 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[ 23.521450][ T301] cgroup: Unknown subsys name 'net'
[ 23.543065][ T28] audit: type=1400 audit(1792929007.412:67): avc: denied { mount } for pid=301 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 23.570282][ T28] audit: type=1400 audit(1792929007.442:68): avc: denied { unmount } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 23.570413][ T301] cgroup: Unknown subsys name 'devices'
[ 23.712574][ T301] cgroup: Unknown subsys name 'hugetlb'
[ 23.718165][ T301] cgroup: Unknown subsys name 'rlimit'
[ 23.854470][ T28] audit: type=1400 audit(1792929007.752:69): avc: denied { setattr } for pid=301 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1
[ 23.877620][ T28] audit: type=1400 audit(1792929007.752:70): avc: denied { create } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 23.898204][ T28] audit: type=1400 audit(1792929007.752:71): avc: denied { write } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 23.906245][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 23.918493][ T28] audit: type=1400 audit(1792929007.752:72): avc: denied { read } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
Setting up swapspace version 1, size = 127995904 bytes
[ 23.947193][ T28] audit: type=1400 audit(1792929007.752:73): avc: denied { mounton } for pid=301 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[ 23.979186][ T301] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 24.623369][ T307] request_module fs-gadgetfs succeeded, but still no fs?
[ 24.923898][ T338] bridge0: port 1(bridge_slave_0) entered blocking state
[ 24.931129][ T338] bridge0: port 1(bridge_slave_0) entered disabled state
[ 24.938545][ T338] device bridge_slave_0 entered promiscuous mode
[ 24.946122][ T338] bridge0: port 2(bridge_slave_1) entered blocking state
[ 24.953237][ T338] bridge0: port 2(bridge_slave_1) entered disabled state
[ 24.960473][ T338] device bridge_slave_1 entered promiscuous mode
[ 24.995847][ T338] bridge0: port 2(bridge_slave_1) entered blocking state
[ 25.002887][ T338] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 25.010106][ T338] bridge0: port 1(bridge_slave_0) entered blocking state
[ 25.017121][ T338] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 25.033632][ T10] bridge0: port 1(bridge_slave_0) entered disabled state
[ 25.041175][ T10] bridge0: port 2(bridge_slave_1) entered disabled state
[ 25.048506][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 25.055985][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 25.065865][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 25.074067][ T10] bridge0: port 1(bridge_slave_0) entered blocking state
[ 25.081084][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 25.089402][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 25.097710][ T10] bridge0: port 2(bridge_slave_1) entered blocking state
[ 25.104752][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 25.116229][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 25.125101][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 25.137779][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 25.149107][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 25.157362][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 25.165020][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 25.173100][ T338] device veth0_vlan entered promiscuous mode
[ 25.184318][ T338] device veth1_macvtap entered promiscuous mode
[ 25.191178][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 25.201909][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 25.211680][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 25.236570][ T338] syz-executor (338) used greatest stack depth: 22144 bytes left
2026/10/25 11:50:09 executed programs: 0
[ 25.684572][ T368] bridge0: port 1(bridge_slave_0) entered blocking state
[ 25.691778][ T368] bridge0: port 1(bridge_slave_0) entered disabled state
[ 25.699061][ T368] device bridge_slave_0 entered promiscuous mode
[ 25.706067][ T368] bridge0: port 2(bridge_slave_1) entered blocking state
[ 25.713239][ T368] bridge0: port 2(bridge_slave_1) entered disabled state
[ 25.720515][ T368] device bridge_slave_1 entered promiscuous mode
[ 25.761123][ T368] bridge0: port 2(bridge_slave_1) entered blocking state
[ 25.768150][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 25.775414][ T368] bridge0: port 1(bridge_slave_0) entered blocking state
[ 25.782438][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 25.804677][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 25.812255][ T343] bridge0: port 1(bridge_slave_0) entered disabled state
[ 25.819415][ T343] bridge0: port 2(bridge_slave_1) entered disabled state
[ 25.828427][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 25.836733][ T343] bridge0: port 1(bridge_slave_0) entered blocking state
[ 25.843818][ T343] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 25.857499][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 25.865714][ T343] bridge0: port 2(bridge_slave_1) entered blocking state
[ 25.872740][ T343] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 25.883939][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 25.895574][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 25.908247][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 25.918937][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 25.927123][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 25.935487][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 25.943192][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 25.956448][ T368] device veth0_vlan entered promiscuous mode
[ 25.965481][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 25.973826][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 25.983056][ T368] device veth1_macvtap entered promiscuous mode
[ 25.995572][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 26.003545][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 26.011914][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 26.020140][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 26.028452][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 26.080775][ C0] ==================================================================
[ 26.088840][ C0] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x6c/0xb0
[ 26.096201][ C0] Read of size 8 at addr ffff88812b8b8d90 by task syz-execprog/303
[ 26.104064][ C0]
[ 26.106364][ C0] CPU: 0 PID: 303 Comm: syz-execprog Not tainted syzkaller #0
[ 26.113790][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
[ 26.123827][ C0] Call Trace:
[ 26.127082][ C0]
[ 26.129900][ C0] __dump_stack+0x21/0x24
[ 26.134209][ C0] dump_stack_lvl+0x110/0x170
[ 26.138864][ C0] ? __cfi_dump_stack_lvl+0x8/0x8
[ 26.143862][ C0] ? debug_smp_processor_id+0x17/0x20
[ 26.149210][ C0] ? rcu_cblist_dequeue+0x6c/0xb0
[ 26.154225][ C0] print_address_description+0x71/0x200
[ 26.159749][ C0] print_report+0x4a/0x60
[ 26.164057][ C0] kasan_report+0x122/0x150
[ 26.168538][ C0] ? rcu_cblist_dequeue+0x6c/0xb0
[ 26.173539][ C0] __asan_report_load8_noabort+0x14/0x20
[ 26.179148][ C0] rcu_cblist_dequeue+0x6c/0xb0
[ 26.183973][ C0] rcu_do_batch+0x4bc/0xc30
[ 26.188458][ C0] ? rcu_core+0xf00/0xf00
[ 26.192763][ C0] ? __kasan_check_write+0x14/0x20
[ 26.197849][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 26.203279][ C0] ? __cfi__raw_spin_lock_irqsave+0x10/0x10
[ 26.209149][ C0] ? _raw_spin_unlock_irqrestore+0x5a/0x80
[ 26.214927][ C0] ? rcu_report_qs_rnp+0x2b9/0x390
[ 26.220032][ C0] rcu_core+0x486/0xf00
[ 26.224164][ C0] ? rcu_cpu_kthread_park+0x90/0x90
[ 26.229352][ C0] ? kvm_sched_clock_read+0x18/0x40
[ 26.234529][ C0] ? run_rebalance_domains+0xf7/0x1c0
[ 26.239878][ C0] rcu_core_si+0x9/0x10
[ 26.244014][ C0] handle_softirqs+0x1dd/0x5f0
[ 26.248755][ C0] __irq_exit_rcu+0x52/0xf0
[ 26.253233][ C0] irq_exit_rcu+0x9/0x10
[ 26.257447][ C0] sysvec_apic_timer_interrupt+0xa9/0xc0
[ 26.263057][ C0]
[ 26.265965][ C0]
[ 26.268874][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 26.274849][ C0] RIP: 0010:__stack_depot_save+0x19c/0x490
[ 26.280633][ C0] Code: 85 ed 74 62 89 ca eb 09 4d 8b 6d 00 4d 85 ed 74 55 45 39 7d 08 75 f1 41 39 4d 0c 75 eb 31 f6 49 8b 3c f6 49 3b 7c f5 18 75 de <48> ff c6 39 f2 75 ee 4d 85 ed 74 09 b8 ff ff ff 07 41 23 45 10 65
[ 26.300213][ C0] RSP: 0018:ffffc90000da6ea0 EFLAGS: 00000246
[ 26.306296][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000010
[ 26.314246][ C0] RDX: 0000000000000010 RSI: 0000000000000004 RDI: ffffffff81ae8d77
[ 26.322206][ C0] RBP: ffffc90000da6f00 R08: 0000000000002800 R09: 0000000000000001
[ 26.330155][ C0] R10: ffff8881f5a00000 R11: 00000000652bd5b4 R12: 00000000000f82c3
[ 26.338100][ C0] R13: ffff88812bde78e0 R14: ffffc90000da6f60 R15: 000000009c9f82c3
[ 26.346051][ C0] ? tlb_flush_mmu+0x107/0x1f0
[ 26.350814][ C0] stack_depot_save+0x13/0x20
[ 26.355469][ C0] save_stack+0x12f/0x230
[ 26.359787][ C0] ? __reset_page_owner+0x190/0x190
[ 26.364956][ C0] ? free_unref_page_prepare+0x81b/0x820
[ 26.370563][ C0] ? free_unref_page_list+0x117/0x8d0
[ 26.375912][ C0] ? release_pages+0xc7e/0xce0
[ 26.380646][ C0] ? free_pages_and_swap_cache+0x86/0xa0
[ 26.386255][ C0] ? tlb_flush_mmu+0x107/0x1f0
[ 26.390993][ C0] ? unmap_page_range+0x20ed/0x2360
[ 26.396166][ C0] ? unmap_vmas+0x34c/0x480
[ 26.400642][ C0] ? exit_mmap+0x2a4/0xc10
[ 26.405031][ C0] ? __mmput+0x92/0x340
[ 26.409162][ C0] ? mmput+0x4b/0x150
[ 26.413123][ C0] ? do_exit+0xa62/0x29f0
[ 26.417429][ C0] ? do_group_exit+0x21b/0x2e0
[ 26.422169][ C0] ? get_signal+0x167c/0x1700
[ 26.426823][ C0] ? arch_do_signal_or_restart+0xd1/0x11c0
[ 26.432607][ C0] ? exit_to_user_mode_loop+0x7a/0xb0
[ 26.437958][ C0] ? exit_to_user_mode_prepare+0x87/0xd0
[ 26.443563][ C0] ? cgroup_rstat_updated+0xf0/0x360
[ 26.448856][ C0] ? free_pcppages_bulk+0x84f/0x880
[ 26.454029][ C0] __reset_page_owner+0x54/0x190
[ 26.458939][ C0] free_unref_page_prepare+0x81b/0x820
[ 26.464379][ C0] free_unref_page_list+0x117/0x8d0
[ 26.469555][ C0] ? uncharge_folio+0x6c0/0x6c0
[ 26.474400][ C0] ? __kasan_check_read+0x11/0x20
[ 26.479397][ C0] ? __cfi_free_unref_page_list+0x10/0x10
[ 26.485093][ C0] ? __mem_cgroup_uncharge_list+0x99/0xc0
[ 26.490795][ C0] release_pages+0xc7e/0xce0
[ 26.495379][ C0] ? __alloc_pages+0x1fa/0x610
[ 26.500122][ C0] ? __cfi_release_pages+0x10/0x10
[ 26.505205][ C0] ? __kasan_check_read+0x11/0x20
[ 26.510225][ C0] free_pages_and_swap_cache+0x86/0xa0
[ 26.515675][ C0] tlb_flush_mmu+0x107/0x1f0
[ 26.520239][ C0] unmap_page_range+0x20ed/0x2360
[ 26.525241][ C0] ? __cfi_unmap_page_range+0x10/0x10
[ 26.530591][ C0] ? mas_find+0xdf/0x380
[ 26.534824][ C0] unmap_vmas+0x34c/0x480
[ 26.539133][ C0] ? __cfi_unmap_vmas+0x10/0x10
[ 26.543961][ C0] ? mas_next_slot+0x9d7/0xa10
[ 26.548704][ C0] ? __cfi_lru_add_drain_cpu+0x10/0x10
[ 26.554139][ C0] ? __kasan_check_write+0x14/0x20
[ 26.559224][ C0] exit_mmap+0x2a4/0xc10
[ 26.563452][ C0] ? perf_event_exit_event+0x530/0x530
[ 26.568913][ C0] ? __cfi_exit_mmap+0x10/0x10
[ 26.573664][ C0] ? _raw_spin_lock_irqsave+0xc2/0x130
[ 26.579114][ C0] ? __cfi_exit_aio+0x10/0x10
[ 26.583769][ C0] ? uprobe_clear_state+0x2c6/0x320
[ 26.588949][ C0] __mmput+0x92/0x340
[ 26.592932][ C0] mmput+0x4b/0x150
[ 26.596735][ C0] do_exit+0xa62/0x29f0
[ 26.600872][ C0] ? __cfi_do_exit+0x10/0x10
[ 26.605442][ C0] ? plist_check_list+0x255/0x270
[ 26.610443][ C0] ? _raw_spin_lock+0x94/0xf0
[ 26.615094][ C0] ? queued_spin_lock_slowpath+0x47/0x50
[ 26.620705][ C0] ? _raw_spin_lock_irq+0xe5/0xf0
[ 26.625750][ C0] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 26.631275][ C0] do_group_exit+0x21b/0x2e0
[ 26.635848][ C0] ? __kasan_check_write+0x14/0x20
[ 26.640932][ C0] ? recalc_sigpending+0x168/0x1c0
[ 26.646018][ C0] get_signal+0x167c/0x1700
[ 26.650502][ C0] ? __cfi_get_signal+0x10/0x10
[ 26.655328][ C0] arch_do_signal_or_restart+0xd1/0x11c0
[ 26.660940][ C0] ? do_futex+0x2e2/0x430
[ 26.665246][ C0] ? percpu_counter_add_batch+0x13c/0x160
[ 26.670942][ C0] ? __cfi_do_futex+0x10/0x10
[ 26.675592][ C0] ? __fput+0x66d/0x8f0
[ 26.679722][ C0] ? __cfi_arch_do_signal_or_restart+0x10/0x10
[ 26.685849][ C0] ? __se_sys_futex+0x136/0x310
[ 26.690680][ C0] ? fput+0x15b/0x1a0
[ 26.694651][ C0] exit_to_user_mode_loop+0x7a/0xb0
[ 26.699829][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 26.705266][ C0] syscall_exit_to_user_mode+0x1a/0x30
[ 26.710708][ C0] do_syscall_64+0x58/0xa0
[ 26.715107][ C0] ? clear_bhb_loop+0x30/0x80
[ 26.719757][ C0] ? clear_bhb_loop+0x30/0x80
[ 26.724408][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 26.730275][ C0] RIP: 0033:0x48f2e3
[ 26.734145][ C0] Code: Unable to access opcode bytes at 0x48f2b9.
[ 26.740636][ C0] RSP: 002b:00001fc3f878bcd8 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
[ 26.749024][ C0] RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 000000000048f2e3
[ 26.756971][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00001fc3f85f9960
[ 26.764919][ C0] RBP: 00001fc3f878bd20 R08: 0000000000000000 R09: 0000000000000000
[ 26.772867][ C0] R10: 0000000000000000 R11: 0000000000000286 R12: 00001fc3f878bd30
[ 26.780815][ C0] R13: 00001fc3fdbf3220 R14: 00001fc3f716f680 R15: ffffffffffffffff
[ 26.788776][ C0]
[ 26.791770][ C0]
[ 26.794067][ C0] Allocated by task 373:
[ 26.798285][ C0] kasan_set_track+0x4b/0x70
[ 26.802854][ C0] kasan_save_alloc_info+0x1f/0x30
[ 26.807940][ C0] __kasan_kmalloc+0x95/0xb0
[ 26.812509][ C0] __kmalloc+0xb4/0x1e0
[ 26.816658][ C0] l2tp_session_create+0x38/0xbd0
[ 26.821660][ C0] pppol2tp_connect+0xbf5/0x1640
[ 26.826589][ C0] __sys_connect+0x3da/0x460
[ 26.831159][ C0] __x64_sys_connect+0x7a/0x90
[ 26.835899][ C0] x64_sys_call+0x88d/0x9a0
[ 26.840376][ C0] do_syscall_64+0x4c/0xa0
[ 26.844764][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 26.850635][ C0]
[ 26.852932][ C0] Freed by task 8:
[ 26.856623][ C0] kasan_set_track+0x4b/0x70
[ 26.861186][ C0] kasan_save_free_info+0x2b/0x40
[ 26.866190][ C0] ____kasan_slab_free+0x132/0x180
[ 26.871312][ C0] __kasan_slab_free+0x11/0x20
[ 26.876061][ C0] slab_free_freelist_hook+0xc2/0x190
[ 26.881410][ C0] __kmem_cache_free+0xb7/0x1b0
[ 26.886247][ C0] kfree+0x6f/0xf0
[ 26.889946][ C0] l2tp_session_put+0xaf/0x1a0
[ 26.894690][ C0] l2tp_session_delete+0x3df/0x4d0
[ 26.899779][ C0] l2tp_tunnel_del_work+0x199/0x410
[ 26.904953][ C0] process_one_work+0x717/0xc30
[ 26.909778][ C0] worker_thread+0xa4d/0x11d0
[ 26.914429][ C0] kthread+0x281/0x320
[ 26.918488][ C0] ret_from_fork+0x1f/0x30
[ 26.922880][ C0]
[ 26.925180][ C0] Last potentially related work creation:
[ 26.930868][ C0] kasan_save_stack+0x3a/0x60
[ 26.935538][ C0] __kasan_record_aux_stack+0xb6/0xc0
[ 26.940895][ C0] kasan_record_aux_stack_noalloc+0xb/0x10
[ 26.946675][ C0] call_rcu+0xcf/0xf50
[ 26.950722][ C0] pppol2tp_release+0x1e3/0x2b0
[ 26.955554][ C0] sock_close+0xc9/0x220
[ 26.959770][ C0] __fput+0x1fd/0x8f0
[ 26.963729][ C0] ____fput+0x15/0x20
[ 26.967686][ C0] task_work_run+0x1e1/0x250
[ 26.972257][ C0] exit_to_user_mode_loop+0x9b/0xb0
[ 26.977430][ C0] exit_to_user_mode_prepare+0x87/0xd0
[ 26.982860][ C0] syscall_exit_to_user_mode+0x1a/0x30
[ 26.988307][ C0] do_syscall_64+0x58/0xa0
[ 26.992696][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 26.998565][ C0]
[ 27.000866][ C0] The buggy address belongs to the object at ffff88812b8b8c00
[ 27.000866][ C0] which belongs to the cache kmalloc-512 of size 512
[ 27.014892][ C0] The buggy address is located 400 bytes inside of
[ 27.014892][ C0] 512-byte region [ffff88812b8b8c00, ffff88812b8b8e00)
[ 27.028141][ C0]
[ 27.030441][ C0] The buggy address belongs to the physical page:
[ 27.036822][ C0] page:ffffea0004ae2e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12b8b8
[ 27.047072][ C0] head:ffffea0004ae2e00 order:2 compound_mapcount:0 compound_pincount:0
[ 27.055372][ C0] flags: 0x4000000000010200(slab|head|zone=1)
[ 27.061429][ C0] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00
[ 27.069997][ C0] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[ 27.078567][ C0] page dumped because: kasan: bad access detected
[ 27.084968][ C0] page_owner tracks the page as allocated
[ 27.090658][ C0] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 368, tgid 368 (syz-executor), ts 26044689055, free_ts 25417623878
[ 27.113213][ C0] post_alloc_hook+0x1f5/0x210
[ 27.117966][ C0] prep_new_page+0x1c/0x110
[ 27.122450][ C0] get_page_from_freelist+0x2ca9/0x2d20
[ 27.127975][ C0] __alloc_pages+0x1fa/0x610
[ 27.132543][ C0] alloc_slab_page+0x6e/0xf0
[ 27.137109][ C0] new_slab+0x98/0x3e0
[ 27.141168][ C0] ___slab_alloc+0x70f/0xb70
[ 27.145736][ C0] __slab_alloc+0x5e/0xa0
[ 27.150043][ C0] __kmem_cache_alloc_node+0x204/0x2d0
[ 27.155479][ C0] kmalloc_trace+0x29/0xb0
[ 27.159885][ C0] find_css_set+0x937/0x15c0
[ 27.164450][ C0] cgroup_migrate_prepare_dst+0xc4/0xa00
[ 27.170054][ C0] cgroup_attach_task+0x298/0x520
[ 27.175051][ C0] __cgroup1_procs_write+0x314/0x520
[ 27.180311][ C0] cgroup1_procs_write+0x2a/0x40
[ 27.185222][ C0] cgroup_file_write+0x2a2/0x590
[ 27.190137][ C0] page last free stack trace:
[ 27.194781][ C0] free_unref_page_prepare+0x81b/0x820
[ 27.200225][ C0] free_unref_page+0x93/0x530
[ 27.204875][ C0] __free_pages+0x67/0x100
[ 27.209276][ C0] free_pages+0x82/0x90
[ 27.213407][ C0] kasan_depopulate_vmalloc_pte+0x6b/0x90
[ 27.219113][ C0] __apply_to_page_range+0x8db/0xc80
[ 27.224375][ C0] apply_to_existing_page_range+0x38/0x50
[ 27.230088][ C0] kasan_release_vmalloc+0x97/0xb0
[ 27.235173][ C0] __purge_vmap_area_lazy+0xf09/0x1870
[ 27.240606][ C0] drain_vmap_area_work+0x3e/0xd0
[ 27.245604][ C0] process_one_work+0x717/0xc30
[ 27.250427][ C0] worker_thread+0xa4d/0x11d0
[ 27.255074][ C0] kthread+0x281/0x320
[ 27.259130][ C0] ret_from_fork+0x1f/0x30
[ 27.263521][ C0]
[ 27.265821][ C0] Memory state around the buggy address:
[ 27.271420][ C0] ffff88812b8b8c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 27.279471][ C0] ffff88812b8b8d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 27.287503][ C0] >ffff88812b8b8d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 27.295536][ C0] ^
[ 27.300099][ C0] ffff88812b8b8e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 27.308129][ C0] ffff88812b8b8e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 27.316174][ C0] ==================================================================
[ 27.324258][ C0] Disabling lock debugging due to kernel taint