syzkaller syzkaller login: [ 14.860269][ T28] kauditd_printk_skb: 26 callbacks suppressed [ 14.860284][ T28] audit: type=1400 audit(1789060095.135:59): avc: denied { transition } for pid=224 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.864983][ T28] audit: type=1400 audit(1789060095.135:60): avc: denied { noatsecure } for pid=224 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.868692][ T28] audit: type=1400 audit(1789060095.145:61): avc: denied { write } for pid=224 comm="sh" path="pipe:[11890]" dev="pipefs" ino=11890 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.872322][ T28] audit: type=1400 audit(1789060095.145:62): avc: denied { rlimitinh } for pid=224 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.875311][ T28] audit: type=1400 audit(1789060095.145:63): avc: denied { siginh } for pid=224 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.177' (ED25519) to the list of known hosts. 2026/09/10 17:08:24 parsed 1 programs 2026/09/10 17:08:24 serving rpc on tcp://33877 [ 24.652271][ T28] audit: type=1400 audit(1789060104.935:64): avc: denied { node_bind } for pid=294 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.672976][ T28] audit: type=1400 audit(1789060104.935:65): avc: denied { module_request } for pid=294 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 [ 25.824936][ T28] audit: type=1400 audit(1789060106.105:66): avc: denied { mounton } for pid=303 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 [ 25.828198][ T303] cgroup: Unknown subsys name 'net' [ 25.848087][ T28] audit: type=1400 audit(1789060106.105:67): avc: denied { mount } for pid=303 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 [ 25.874991][ T28] audit: type=1400 audit(1789060106.135:68): avc: denied { unmount } for pid=303 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.875354][ T303] cgroup: Unknown subsys name 'devices' [ 26.014003][ T303] cgroup: Unknown subsys name 'hugetlb' [ 26.019654][ T303] cgroup: Unknown subsys name 'rlimit' [ 26.131573][ T28] audit: type=1400 audit(1789060106.405:69): avc: denied { setattr } for pid=303 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 [ 26.154773][ T28] audit: type=1400 audit(1789060106.405:70): avc: denied { create } for pid=303 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.175221][ T28] audit: type=1400 audit(1789060106.405:71): avc: denied { write } for pid=303 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.195656][ T28] audit: type=1400 audit(1789060106.405:72): avc: denied { read } for pid=303 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.215958][ T28] audit: type=1400 audit(1789060106.405:73): avc: denied { mounton } for pid=303 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 [ 26.227584][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 26.315906][ T303] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.046985][ T307] request_module fs-gadgetfs succeeded, but still no fs? [ 27.536015][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.543175][ T341] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.550495][ T341] device bridge_slave_0 entered promiscuous mode [ 27.557483][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.564666][ T341] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.572078][ T341] device bridge_slave_1 entered promiscuous mode [ 27.617851][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.624904][ T341] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.632221][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.639252][ T341] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.658764][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.666061][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.674958][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.682573][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.691451][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.699670][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.706720][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.715748][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.723933][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.730956][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.743556][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.752930][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.767309][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.778574][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.786708][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.794311][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.802368][ T341] device veth0_vlan entered promiscuous mode [ 27.812322][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.821491][ T341] device veth1_macvtap entered promiscuous mode [ 27.830837][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.840586][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.875496][ T341] syz-executor (341) used greatest stack depth: 21024 bytes left 2026/09/10 17:08:28 executed programs: 0 [ 28.258898][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.266237][ T368] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.273884][ T368] device bridge_slave_0 entered promiscuous mode [ 28.286049][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.293164][ T368] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.300561][ T368] device bridge_slave_1 entered promiscuous mode [ 28.351859][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.358955][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.366278][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.373325][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.394354][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.403803][ T343] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.411325][ T343] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.421901][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.430349][ T343] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.437407][ T343] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.446340][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.454645][ T343] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.461669][ T343] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.474851][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.484303][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.498731][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.510156][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.518417][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.526073][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.535231][ T368] device veth0_vlan entered promiscuous mode [ 28.545292][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 28.553753][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.563896][ T368] device veth1_macvtap entered promiscuous mode [ 28.573472][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 28.581162][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 28.589624][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.599307][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 28.607671][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.637959][ T373] ================================================================== [ 28.646043][ T373] BUG: KASAN: slab-out-of-bounds in stack_map_get_build_id_offset+0x833/0x9b0 [ 28.654904][ T373] Write of size 4 at addr ffff888115240b30 by task syz.2.17/373 [ 28.662525][ T373] [ 28.664857][ T373] CPU: 1 PID: 373 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.671968][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 28.682052][ T373] Call Trace: [ 28.685343][ T373] [ 28.688274][ T373] __dump_stack+0x21/0x24 [ 28.692618][ T373] dump_stack_lvl+0x110/0x170 [ 28.697340][ T373] ? __cfi_dump_stack_lvl+0x8/0x8 [ 28.702376][ T373] ? stack_map_get_build_id_offset+0x833/0x9b0 [ 28.708533][ T373] print_address_description+0x71/0x200 [ 28.714087][ T373] print_report+0x4a/0x60 [ 28.718435][ T373] kasan_report+0x122/0x150 [ 28.722952][ T373] ? stack_map_get_build_id_offset+0x833/0x9b0 [ 28.729114][ T373] __asan_report_store4_noabort+0x17/0x20 [ 28.734832][ T373] stack_map_get_build_id_offset+0x833/0x9b0 [ 28.740826][ T373] ? _raw_spin_unlock+0x4c/0x70 [ 28.745699][ T373] ? __bpf_get_stackid+0x960/0x960 [ 28.750829][ T373] ? pcpu_freelist_pop+0xac/0xf0 [ 28.755768][ T373] ? __cfi_pcpu_freelist_pop+0x10/0x10 [ 28.761227][ T373] __bpf_get_stackid+0x5ac/0x960 [ 28.766198][ T373] bpf_get_stackid_pe+0x2ee/0x400 [ 28.771235][ T373] bpf_prog_2414a5d5030ea31b+0x21/0x25 [ 28.776701][ T373] bpf_overflow_handler+0x3c7/0x5e0 [ 28.781905][ T373] ? __cfi_bpf_overflow_handler+0x10/0x10 [ 28.787655][ T373] ? __this_cpu_preempt_check+0x13/0x20 [ 28.793205][ T373] ? __perf_event_account_interrupt+0x1a4/0x2c0 [ 28.799453][ T373] __perf_event_overflow+0x458/0x640 [ 28.804744][ T373] perf_swevent_event+0x243/0x440 [ 28.809777][ T373] ? perf_tp_event+0xa20/0xa20 [ 28.814547][ T373] ___perf_sw_event+0x3bf/0x500 [ 28.819403][ T373] ? x64_sys_call+0x488/0x9a0 [ 28.824081][ T373] ? __cfi____perf_sw_event+0x10/0x10 [ 28.829463][ T373] ? kmalloc_trace+0x29/0xb0 [ 28.834064][ T373] ? __set_page_owner_handle+0x3c7/0x410 [ 28.839700][ T373] __perf_sw_event+0x134/0x270 [ 28.844475][ T373] do_user_addr_fault+0xfe9/0x1030 [ 28.849595][ T373] ? get_page_from_freelist+0x2ca9/0x2d20 [ 28.855324][ T373] exc_page_fault+0x51/0xb0 [ 28.859837][ T373] asm_exc_page_fault+0x27/0x30 [ 28.864687][ T373] RIP: 0010:copy_user_short_string+0xd/0x40 [ 28.870581][ T373] Code: 74 0a 89 d1 f3 a4 89 c8 0f 01 ca c3 89 d0 0f 01 ca c3 01 ca eb e7 90 90 90 90 90 90 90 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a [ 28.890180][ T373] RSP: 0018:ffffc90000986ed8 EFLAGS: 00050207 [ 28.896244][ T373] RAX: ffffffff82692d01 RBX: 000000000000001f RCX: 0000000000000003 [ 28.904217][ T373] RDX: 0000000000000007 RSI: ffff88812cf6066c RDI: 0000000000000180 [ 28.912186][ T373] RBP: ffffc90000986f00 R08: 4c4c41435f465042 R09: 1ffff110259ec0d1 [ 28.920161][ T373] R10: dffffc0000000000 R11: ffffed10259ec0d2 R12: 00007fffffffefe1 [ 28.928139][ T373] R13: 000000000000001f R14: 0000000000000180 R15: ffff88812cf6066c [ 28.936111][ T373] ? _copy_from_user+0x61/0xc0 [ 28.940886][ T373] ? _copy_to_user+0x72/0x90 [ 28.945480][ T373] bpf_verifier_vlog+0x179/0x390 [ 28.950443][ T373] verbose+0x1f0/0x2b0 [ 28.954521][ T373] ? __cfi_verbose+0x10/0x10 [ 28.959112][ T373] ? stack_trace_save+0xa6/0xf0 [ 28.963993][ T373] ? __stack_depot_save+0x36/0x490 [ 28.969108][ T373] ? __kmem_cache_free+0xb7/0x1b0 [ 28.974138][ T373] do_check+0xede7/0xf140 [ 28.978472][ T373] ? kasan_set_track+0x4b/0x70 [ 28.983233][ T373] ? kasan_save_alloc_info+0x1f/0x30 [ 28.988514][ T373] ? kmalloc_trace+0x40/0xb0 [ 28.993182][ T373] ? bpf_check+0xa04e/0x10e90 [ 28.997872][ T373] ? __x64_sys_bpf+0x7c/0x90 [ 29.002457][ T373] ? do_syscall_64+0x4c/0xa0 [ 29.007056][ T373] ? init_func_state+0x640/0x640 [ 29.012015][ T373] ? kasan_save_alloc_info+0x1f/0x30 [ 29.017312][ T373] do_check_common+0x11c3/0x1970 [ 29.022271][ T373] bpf_check+0xa04e/0x10e90 [ 29.026780][ T373] ? __cfi_gfp_zone+0x10/0x10 [ 29.031454][ T373] ? __cfi_bpf_check+0x10/0x10 [ 29.036225][ T373] ? 0xffffffffa00007d4 [ 29.040373][ T373] ? is_bpf_text_address+0x177/0x190 [ 29.045670][ T373] ? kernel_text_address+0xa0/0xd0 [ 29.050791][ T373] ? __kernel_text_address+0xd/0x30 [ 29.056000][ T373] ? unwind_get_return_address+0x4d/0x90 [ 29.061633][ T373] ? __cfi_stack_trace_consume_entry+0x10/0x10 [ 29.067788][ T373] ? arch_stack_walk+0xfc/0x150 [ 29.072644][ T373] ? stack_trace_save+0xa6/0xf0 [ 29.077496][ T373] ? __stack_depot_save+0x36/0x490 [ 29.082606][ T373] ? kasan_set_track+0x60/0x70 [ 29.087370][ T373] ? kasan_set_track+0x4b/0x70 [ 29.092137][ T373] ? kasan_save_alloc_info+0x1f/0x30 [ 29.097437][ T373] ? __kasan_kmalloc+0x95/0xb0 [ 29.102203][ T373] ? kmalloc_trace+0x40/0xb0 [ 29.106792][ T373] ? selinux_bpf_prog_alloc+0x51/0x140 [ 29.112268][ T373] ? security_bpf_prog_alloc+0x73/0xa0 [ 29.117728][ T373] ? bpf_prog_load+0xa03/0x1670 [ 29.122572][ T373] ? __sys_bpf+0x57b/0x850 [ 29.127003][ T373] ? __x64_sys_bpf+0x7c/0x90 [ 29.131612][ T373] ? x64_sys_call+0x488/0x9a0 [ 29.136287][ T373] ? do_syscall_64+0x4c/0xa0 [ 29.140879][ T373] ? entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.146981][ T373] ? __kasan_check_write+0x14/0x20 [ 29.152114][ T373] ? _raw_spin_lock+0x94/0xf0 [ 29.156794][ T373] ? __cfi__raw_spin_lock+0x10/0x10 [ 29.162005][ T373] ? _raw_spin_unlock+0x4c/0x70 [ 29.166882][ T373] ? memset+0x35/0x40 [ 29.170864][ T373] ? bpf_obj_name_cpy+0x193/0x1e0 [ 29.175895][ T373] bpf_prog_load+0x10f4/0x1670 [ 29.180681][ T373] ? map_freeze+0x3a0/0x3a0 [ 29.185190][ T373] ? selinux_bpf+0xc7/0xf0 [ 29.189625][ T373] ? security_bpf+0x93/0xb0 [ 29.194132][ T373] __sys_bpf+0x57b/0x850 [ 29.198394][ T373] ? bpf_link_show_fdinfo+0x330/0x330 [ 29.203783][ T373] ? up_read+0x56/0x1d0 [ 29.207947][ T373] ? do_user_addr_fault+0x9a5/0x1030 [ 29.213242][ T373] ? debug_smp_processor_id+0x17/0x20 [ 29.218627][ T373] __x64_sys_bpf+0x7c/0x90 [ 29.223040][ T373] x64_sys_call+0x488/0x9a0 [ 29.227546][ T373] do_syscall_64+0x4c/0xa0 [ 29.231979][ T373] ? clear_bhb_loop+0x30/0x80 [ 29.236664][ T373] ? clear_bhb_loop+0x30/0x80 [ 29.241341][ T373] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.247244][ T373] RIP: 0033:0x7ff17039e159 [ 29.251670][ T373] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 29.271272][ T373] RSP: 002b:00007ffef615ac88 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 29.279673][ T373] RAX: ffffffffffffffda RBX: 00007ff170625fa0 RCX: 00007ff17039e159 [ 29.287639][ T373] RDX: 0000000000000023 RSI: 00002000002a0fb8 RDI: 0000000000000005 [ 29.295612][ T373] RBP: 00007ff17043503b R08: 0000000000000000 R09: 0000000000000000 [ 29.303602][ T373] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 29.311572][ T373] R13: 00007ff170625fac R14: 00007ff170625fa0 R15: 00007ff170625fa0 [ 29.319548][ T373] [ 29.322565][ T373] [ 29.324883][ T373] Allocated by task 373: [ 29.329113][ T373] kasan_set_track+0x4b/0x70 [ 29.333709][ T373] kasan_save_alloc_info+0x1f/0x30 [ 29.338817][ T373] __kasan_kmalloc+0x95/0xb0 [ 29.343412][ T373] __kmalloc_node+0xb2/0x1e0 [ 29.347998][ T373] bpf_map_area_alloc+0x4b/0xe0 [ 29.352842][ T373] prealloc_elems_and_freelist+0x8a/0x1e0 [ 29.358550][ T373] stack_map_alloc+0x398/0x520 [ 29.363299][ T373] map_create+0x467/0xcf0 [ 29.367633][ T373] __sys_bpf+0x34e/0x850 [ 29.371874][ T373] __x64_sys_bpf+0x7c/0x90 [ 29.376285][ T373] x64_sys_call+0x488/0x9a0 [ 29.380783][ T373] do_syscall_64+0x4c/0xa0 [ 29.385198][ T373] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.391120][ T373] [ 29.393452][ T373] The buggy address belongs to the object at ffff888115240800 [ 29.393452][ T373] which belongs to the cache kmalloc-1k of size 1024 [ 29.407520][ T373] The buggy address is located 816 bytes inside of [ 29.407520][ T373] 1024-byte region [ffff888115240800, ffff888115240c00) [ 29.420892][ T373] [ 29.423211][ T373] The buggy address belongs to the physical page: [ 29.429612][ T373] page:ffffea0004549000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115240 [ 29.439858][ T373] head:ffffea0004549000 order:3 compound_mapcount:0 compound_pincount:0 [ 29.448177][ T373] flags: 0x4000000000010200(slab|head|zone=1) [ 29.454270][ T373] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100043080 [ 29.462851][ T373] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 29.471432][ T373] page dumped because: kasan: bad access detected [ 29.477847][ T373] page_owner tracks the page as allocated [ 29.483550][ T373] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 368, tgid 368 (syz-executor), ts 28619544709, free_ts 28518025625 [ 29.505516][ T373] post_alloc_hook+0x1f5/0x210 [ 29.510291][ T373] prep_new_page+0x1c/0x110 [ 29.514796][ T373] get_page_from_freelist+0x2ca9/0x2d20 [ 29.520346][ T373] __alloc_pages+0x1fa/0x610 [ 29.524946][ T373] alloc_slab_page+0x6e/0xf0 [ 29.529533][ T373] new_slab+0x98/0x3e0 [ 29.533598][ T373] ___slab_alloc+0x70f/0xb70 [ 29.538211][ T373] __slab_alloc+0x5e/0xa0 [ 29.542553][ T373] __kmem_cache_alloc_node+0x204/0x2d0 [ 29.548060][ T373] __kmalloc_node_track_caller+0xa1/0x1e0 [ 29.553797][ T373] __alloc_skb+0x226/0x4a0 [ 29.558484][ T373] wg_packet_send_keepalive+0x62/0x1c0 [ 29.563960][ T373] wg_open+0x214/0x300 [ 29.568205][ T373] __dev_open+0x39c/0x520 [ 29.572542][ T373] __dev_change_flags+0x1f2/0x6b0 [ 29.577571][ T373] dev_change_flags+0x80/0x1a0 [ 29.582349][ T373] page last free stack trace: [ 29.587012][ T373] free_unref_page_prepare+0x81b/0x820 [ 29.592490][ T373] free_unref_page+0x93/0x530 [ 29.597193][ T373] __free_pages+0x67/0x100 [ 29.601607][ T373] __free_slab+0xc7/0x1a0 [ 29.605951][ T373] __unfreeze_partials+0x15a/0x190 [ 29.611079][ T373] put_cpu_partial+0xa9/0x100 [ 29.615771][ T373] __slab_free+0x1c4/0x280 [ 29.620196][ T373] ___cache_free+0xbf/0xd0 [ 29.624618][ T373] qlist_free_all+0xc6/0x140 [ 29.629209][ T373] kasan_quarantine_reduce+0x14a/0x170 [ 29.634669][ T373] __kasan_slab_alloc+0x24/0x80 [ 29.639534][ T373] slab_post_alloc_hook+0x4f/0x2d0 [ 29.644654][ T373] __kmem_cache_alloc_node+0x194/0x2d0 [ 29.650145][ T373] kmalloc_trace+0x29/0xb0 [ 29.654579][ T373] ipv6_add_addr+0x411/0xe80 [ 29.659194][ T373] addrconf_add_linklocal+0x20e/0x660 [ 29.664598][ T373] [ 29.666970][ T373] Memory state around the buggy address: [ 29.672719][ T373] ffff888115240a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.680780][ T373] ffff888115240a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.688837][ T373] >ffff888115240b00: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 29.696994][ T373] ^ [ 29.702620][ T373] ffff888115240b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.710692][ T373] ffff888115240c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.718757][ T373] ================================================================== [ 29.726811][ T373] Disabling lock debugging due to kernel taint [ 29.743642][ T28] kauditd_printk_skb: 40 callbacks suppressed [ 29.743656][ T28] audit: type=1400 audit(1789060110.025:114): avc: denied { read } for pid=84 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 29.779258][ T28] audit: type=1400 audit(1789060110.035:115): avc: denied { search } for pid=84 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 29.800819][ T28] audit: type=1400 audit(1789060110.035:116): avc: denied { write } for pid=84 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 29.822690][ T28] audit: type=1400 audit(1789060110.035:117): avc: denied { add_name } for pid=84 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 29.843598][ T28] audit: type=1400 audit(1789060110.035:118): avc: denied { create } for pid=84 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 29.864210][ T28] audit: type=1400 audit(1789060110.035:119): avc: denied { append open } for pid=84 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 29.887278][ T28] audit: type=1400 audit(1789060110.035:120): avc: denied { getattr } for pid=84 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1