Warning: Permanently added '10.128.10.21' (ED25519) to the list of known hosts. 2026/07/24 05:55:07 parsed 1 programs 2026/07/24 05:55:07 serving rpc on tcp://41427 [ 24.006841][ T24] audit: type=1400 audit(1784872507.850:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.027698][ T24] audit: type=1400 audit(1784872507.850:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 24.047671][ T24] audit: type=1400 audit(1784872507.850:66): avc: denied { module_request } for pid=287 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 [ 24.627373][ T24] audit: type=1400 audit(1784872508.470:67): avc: denied { mounton } for pid=293 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 [ 24.628429][ T293] cgroup: Unknown subsys name 'net' [ 24.650201][ T24] audit: type=1400 audit(1784872508.470:68): avc: denied { mount } for pid=293 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 [ 24.677802][ T24] audit: type=1400 audit(1784872508.490:69): avc: denied { unmount } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.677962][ T293] cgroup: Unknown subsys name 'devices' [ 24.788062][ T293] cgroup: Unknown subsys name 'hugetlb' [ 24.793699][ T293] cgroup: Unknown subsys name 'rlimit' [ 24.936872][ T24] audit: type=1400 audit(1784872508.780:70): avc: denied { setattr } for pid=293 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 24.960945][ T24] audit: type=1400 audit(1784872508.780:71): avc: denied { create } for pid=293 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 [ 24.981571][ T24] audit: type=1400 audit(1784872508.780:72): avc: denied { write } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.992659][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.001844][ T24] audit: type=1400 audit(1784872508.780:73): avc: denied { read } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.038500][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.475738][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 25.486242][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 25.973403][ T345] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.980712][ T345] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.988538][ T345] device bridge_slave_0 entered promiscuous mode [ 25.995566][ T345] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.002867][ T345] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.010227][ T345] device bridge_slave_1 entered promiscuous mode [ 26.045687][ T345] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.053122][ T345] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.060612][ T345] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.067652][ T345] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.082799][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.090972][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.099601][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.108706][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.116934][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.123961][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.133508][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.141730][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.149056][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.160858][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.169814][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.181981][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.192893][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.201033][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.208619][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.217140][ T345] device veth0_vlan entered promiscuous mode [ 26.226134][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.235303][ T345] device veth1_macvtap entered promiscuous mode [ 26.244335][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.254267][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/24 05:55:10 executed programs: 0 [ 26.485471][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.492958][ T363] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.500309][ T363] device bridge_slave_0 entered promiscuous mode [ 26.507434][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.514461][ T363] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.521811][ T363] device bridge_slave_1 entered promiscuous mode [ 26.562299][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.569472][ T363] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.576782][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.584449][ T363] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.605381][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.613553][ T352] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.620937][ T352] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.634704][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.643285][ T352] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.650611][ T352] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.659431][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.667758][ T352] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.674794][ T352] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.690132][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.699410][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.717086][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 26.725665][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.736830][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 26.744843][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.753561][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.761237][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.769617][ T363] device veth0_vlan entered promiscuous mode [ 26.785888][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 26.794309][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.803723][ T363] device veth1_macvtap entered promiscuous mode [ 26.818474][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 26.826269][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 26.835042][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.844383][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 26.852947][ T352] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.879571][ T368] ================================================================== [ 26.887681][ T368] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 26.894432][ T368] Write of size 8 at addr ffff888110b3e950 by task syz.2.17/368 [ 26.902133][ T368] [ 26.904461][ T368] CPU: 1 PID: 368 Comm: syz.2.17 Not tainted syzkaller #0 [ 26.911984][ T368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 26.922284][ T368] Call Trace: [ 26.925576][ T368] __dump_stack+0x21/0x24 [ 26.930072][ T368] dump_stack_lvl+0x1a7/0x208 [ 26.934868][ T368] ? show_regs_print_info+0x18/0x18 [ 26.940255][ T368] ? thaw_kernel_threads+0x220/0x220 [ 26.945579][ T368] ? debug_smp_processor_id+0x17/0x20 [ 26.951202][ T368] print_address_description+0x7f/0x2c0 [ 26.956747][ T368] ? mutex_lock+0x85/0xf0 [ 26.961066][ T368] kasan_report+0x100/0x140 [ 26.965825][ T368] ? mutex_lock+0x85/0xf0 [ 26.970163][ T368] kasan_check_range+0x249/0x2a0 [ 26.975099][ T368] __kasan_check_write+0x14/0x20 [ 26.980044][ T368] mutex_lock+0x85/0xf0 [ 26.984395][ T368] ? mutex_trylock+0xb0/0xb0 [ 26.988980][ T368] ? l2tp_session_put+0xb2/0x1a0 [ 26.993902][ T368] ? l2tp_session_delete+0x3a9/0x4a0 [ 26.999174][ T368] pppol2tp_release+0x178/0x2b0 [ 27.004015][ T368] sock_close+0xb8/0x200 [ 27.008330][ T368] ? sock_mmap+0xa0/0xa0 [ 27.012557][ T368] __fput+0x2dc/0x730 [ 27.016521][ T368] ____fput+0x15/0x20 [ 27.020668][ T368] task_work_run+0x127/0x190 [ 27.025262][ T368] exit_to_user_mode_loop+0xcb/0xe0 [ 27.030448][ T368] exit_to_user_mode_prepare+0x76/0xa0 [ 27.035914][ T368] syscall_exit_to_user_mode+0x1d/0x40 [ 27.041389][ T368] do_syscall_64+0x3d/0x40 [ 27.045789][ T368] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.051698][ T368] RIP: 0033:0x7fe23579fe99 [ 27.056107][ T368] 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 [ 27.075695][ T368] RSP: 002b:00007ffdffff2ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 27.084107][ T368] RAX: 0000000000000000 RBX: 00007ffdffff2bc0 RCX: 00007fe23579fe99 [ 27.092159][ T368] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 27.100257][ T368] RBP: 00000000000068e3 R08: 0000000000000001 R09: 0000000000000000 [ 27.108222][ T368] R10: 0000001b32a20000 R11: 0000000000000246 R12: 0000000000000000 [ 27.116193][ T368] R13: 00007fe235a27fac R14: 00007fe235a27fa8 R15: 00007fe235a27fa0 [ 27.124262][ T368] [ 27.126583][ T368] Allocated by task 368: [ 27.130833][ T368] __kasan_kmalloc+0xd4/0x100 [ 27.135527][ T368] __kmalloc+0x19f/0x330 [ 27.139756][ T368] l2tp_session_create+0x39/0xb60 [ 27.144936][ T368] pppol2tp_connect+0xbf5/0x1640 [ 27.149928][ T368] __sys_connect+0x3ce/0x450 [ 27.154537][ T368] __x64_sys_connect+0x7a/0x90 [ 27.159296][ T368] do_syscall_64+0x31/0x40 [ 27.163796][ T368] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.169680][ T368] [ 27.171998][ T368] Freed by task 368: [ 27.175875][ T368] kasan_set_track+0x4a/0x70 [ 27.180454][ T368] kasan_set_free_info+0x23/0x40 [ 27.185545][ T368] ____kasan_slab_free+0x125/0x160 [ 27.190664][ T368] __kasan_slab_free+0x11/0x20 [ 27.195690][ T368] slab_free_freelist_hook+0xc5/0x190 [ 27.201048][ T368] kfree+0xc0/0x270 [ 27.205026][ T368] l2tp_session_put+0xb2/0x1a0 [ 27.209780][ T368] l2tp_session_delete+0x3a9/0x4a0 [ 27.214882][ T368] pppol2tp_release+0x169/0x2b0 [ 27.219737][ T368] sock_close+0xb8/0x200 [ 27.223961][ T368] __fput+0x2dc/0x730 [ 27.227937][ T368] ____fput+0x15/0x20 [ 27.231895][ T368] task_work_run+0x127/0x190 [ 27.236818][ T368] exit_to_user_mode_loop+0xcb/0xe0 [ 27.241990][ T368] exit_to_user_mode_prepare+0x76/0xa0 [ 27.247425][ T368] syscall_exit_to_user_mode+0x1d/0x40 [ 27.252869][ T368] do_syscall_64+0x3d/0x40 [ 27.257265][ T368] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.263217][ T368] [ 27.265523][ T368] The buggy address belongs to the object at ffff888110b3e800 [ 27.265523][ T368] which belongs to the cache kmalloc-512 of size 512 [ 27.279908][ T368] The buggy address is located 336 bytes inside of [ 27.279908][ T368] 512-byte region [ffff888110b3e800, ffff888110b3ea00) [ 27.293173][ T368] The buggy address belongs to the page: [ 27.298815][ T368] page:ffffea000442cf00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110b3c [ 27.309026][ T368] head:ffffea000442cf00 order:2 compound_mapcount:0 compound_pincount:0 [ 27.317349][ T368] flags: 0x4000000000010200(slab|head) [ 27.322794][ T368] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 27.331356][ T368] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 27.339940][ T368] page dumped because: kasan: bad access detected [ 27.346348][ T368] page_owner tracks the page as allocated [ 27.352060][ T368] 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 363, ts 26870955849, free_ts 26802704249 [ 27.372695][ T368] prep_new_page+0x176/0x190 [ 27.377290][ T368] get_page_from_freelist+0x225f/0x23f0 [ 27.382896][ T368] __alloc_pages_nodemask+0x29a/0x640 [ 27.388639][ T368] new_slab+0x84/0x3f0 [ 27.392774][ T368] ___slab_alloc+0x2f8/0x4c0 [ 27.397360][ T368] __slab_alloc+0x63/0xa0 [ 27.401752][ T368] __kmalloc+0x1f9/0x330 [ 27.405988][ T368] qdisc_alloc+0x79/0x720 [ 27.410292][ T368] qdisc_create_dflt+0x6b/0x390 [ 27.415116][ T368] dev_activate+0x292/0x11c0 [ 27.419683][ T368] __dev_open+0x3e9/0x500 [ 27.423991][ T368] __dev_change_flags+0x1e4/0x6a0 [ 27.428992][ T368] dev_change_flags+0x80/0x1a0 [ 27.433732][ T368] do_setlink+0xb19/0x29a0 [ 27.438128][ T368] rtnl_newlink+0x13e6/0x1830 [ 27.442783][ T368] rtnetlink_rcv_msg+0x9e9/0xca0 [ 27.447699][ T368] page last free stack trace: [ 27.452355][ T368] __free_pages_ok+0x80b/0x830 [ 27.457095][ T368] __free_pages+0xd8/0x390 [ 27.461488][ T368] __free_slab+0xcf/0x190 [ 27.465802][ T368] unfreeze_partials+0x150/0x180 [ 27.470712][ T368] put_cpu_partial+0xc1/0x180 [ 27.475365][ T368] __slab_free+0x2c9/0x3a0 [ 27.479759][ T368] ___cache_free+0x10e/0x130 [ 27.484327][ T368] qlink_free+0x50/0x90 [ 27.488464][ T368] qlist_free_all+0x5f/0xb0 [ 27.493050][ T368] kasan_quarantine_reduce+0x14a/0x160 [ 27.498486][ T368] __kasan_slab_alloc+0x2f/0xe0 [ 27.503316][ T368] slab_post_alloc_hook+0x5d/0x2f0 [ 27.508404][ T368] kmem_cache_alloc+0x15a/0x2d0 [ 27.513233][ T368] __alloc_skb+0x9e/0x520 [ 27.517541][ T368] rtmsg_ifinfo_build_skb+0x75/0x180 [ 27.522886][ T368] rtmsg_ifinfo+0x7a/0x130 [ 27.527271][ T368] [ 27.529575][ T368] Memory state around the buggy address: [ 27.535183][ T368] ffff888110b3e800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.543220][ T368] ffff888110b3e880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.551258][ T368] >ffff888110b3e900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.559291][ T368] ^ [ 27.566072][ T368] ffff888110b3e980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.574108][ T368] ffff888110b3ea00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.582145][ T368] ================================================================== [ 27.590269][ T368] Disabling lock debugging due to kernel taint