Warning: Permanently added '10.128.1.15' (ED25519) to the list of known hosts. 2026/06/28 13:05:46 parsed 1 programs 2026/06/28 13:05:46 serving rpc on tcp://42743 [ 24.971098][ T24] audit: type=1400 audit(1782651946.459:64): 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 [ 24.991854][ T24] audit: type=1400 audit(1782651946.459:65): 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 [ 25.011434][ T24] audit: type=1400 audit(1782651946.459:66): 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 [ 25.588085][ T24] audit: type=1400 audit(1782651947.079:67): 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 [ 25.589344][ T293] cgroup: Unknown subsys name 'net' [ 25.610793][ T24] audit: type=1400 audit(1782651947.079:68): 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 [ 25.639210][ T24] audit: type=1400 audit(1782651947.109:69): 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 [ 25.639449][ T293] cgroup: Unknown subsys name 'devices' [ 25.756035][ T293] cgroup: Unknown subsys name 'hugetlb' [ 25.761999][ T293] cgroup: Unknown subsys name 'rlimit' [ 25.939151][ T24] audit: type=1400 audit(1782651947.429:70): 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 [ 25.962526][ T24] audit: type=1400 audit(1782651947.429:71): 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 [ 25.983098][ T24] audit: type=1400 audit(1782651947.429:72): 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 [ 25.994681][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.004085][ T24] audit: type=1400 audit(1782651947.429:73): 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 [ 26.039440][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.432878][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 26.444481][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 26.861155][ T332] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.868468][ T332] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.875934][ T332] device bridge_slave_0 entered promiscuous mode [ 26.882763][ T332] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.889867][ T332] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.897172][ T332] device bridge_slave_1 entered promiscuous mode [ 26.936739][ T332] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.943779][ T332] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.951120][ T332] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.958169][ T332] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.974939][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.982299][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.990012][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 26.998751][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.008167][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.016511][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.023565][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.032931][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.041462][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.048547][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.061023][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.071243][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.083908][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.095451][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.103528][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.111987][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.120418][ T332] device veth0_vlan entered promiscuous mode [ 27.129643][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.139139][ T332] device veth1_macvtap entered promiscuous mode [ 27.148236][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.158175][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/06/28 13:05:49 executed programs: 0 [ 27.650785][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.658309][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.665856][ T365] device bridge_slave_0 entered promiscuous mode [ 27.672958][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.680053][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.687826][ T365] device bridge_slave_1 entered promiscuous mode [ 27.738318][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.745393][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.752752][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.760226][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.777027][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.785193][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.792440][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.803109][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.811421][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.818508][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.827201][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.835515][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.842735][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.854535][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 27.862713][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.872121][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 27.880849][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.893553][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 27.902361][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.913234][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 27.921349][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.929786][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.937427][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.946378][ T365] device veth0_vlan entered promiscuous mode [ 27.957071][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 27.965678][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.981781][ T365] device veth1_macvtap entered promiscuous mode [ 27.990472][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 27.998368][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 28.007145][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.016766][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 28.025054][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.049218][ T397] ================================================================== [ 28.057354][ T397] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 28.064054][ T397] Write of size 8 at addr ffff888111180150 by task syz.2.17/397 [ 28.071661][ T397] [ 28.073978][ T397] CPU: 1 PID: 397 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.081056][ T397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 28.091137][ T397] Call Trace: [ 28.094417][ T397] __dump_stack+0x21/0x24 [ 28.099289][ T397] dump_stack_lvl+0x1a7/0x208 [ 28.104153][ T397] ? show_regs_print_info+0x18/0x18 [ 28.110044][ T397] ? thaw_kernel_threads+0x220/0x220 [ 28.115573][ T397] ? debug_smp_processor_id+0x17/0x20 [ 28.121044][ T397] print_address_description+0x7f/0x2c0 [ 28.126584][ T397] ? mutex_lock+0x85/0xf0 [ 28.130890][ T397] kasan_report+0x100/0x140 [ 28.135383][ T397] ? mutex_lock+0x85/0xf0 [ 28.139705][ T397] kasan_check_range+0x249/0x2a0 [ 28.144798][ T397] __kasan_check_write+0x14/0x20 [ 28.149733][ T397] mutex_lock+0x85/0xf0 [ 28.153868][ T397] ? mutex_trylock+0xb0/0xb0 [ 28.158436][ T397] ? l2tp_session_put+0xb2/0x1a0 [ 28.163358][ T397] ? l2tp_session_delete+0x3a9/0x4a0 [ 28.168619][ T397] pppol2tp_release+0x178/0x2b0 [ 28.173470][ T397] sock_close+0xb8/0x200 [ 28.177705][ T397] ? sock_mmap+0xa0/0xa0 [ 28.182010][ T397] __fput+0x2dc/0x730 [ 28.185972][ T397] ____fput+0x15/0x20 [ 28.190018][ T397] task_work_run+0x127/0x190 [ 28.194755][ T397] exit_to_user_mode_loop+0xcb/0xe0 [ 28.199974][ T397] exit_to_user_mode_prepare+0x76/0xa0 [ 28.205587][ T397] syscall_exit_to_user_mode+0x1d/0x40 [ 28.211059][ T397] do_syscall_64+0x3d/0x40 [ 28.215460][ T397] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 28.221619][ T397] RIP: 0033:0x7f21666b2e59 [ 28.226023][ T397] 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 [ 28.245747][ T397] RSP: 002b:00007ffc46859308 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 28.254143][ T397] RAX: 0000000000000000 RBX: 00007ffc468593f0 RCX: 00007f21666b2e59 [ 28.262210][ T397] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 28.270367][ T397] RBP: 0000000000006d77 R08: 0000000000000001 R09: 0000000000000000 [ 28.278330][ T397] R10: 0000001b32b20000 R11: 0000000000000246 R12: 0000000000000000 [ 28.286291][ T397] R13: 00007f216692bfac R14: 00007f216692bfa8 R15: 00007f216692bfa0 [ 28.294255][ T397] [ 28.296588][ T397] Allocated by task 397: [ 28.300840][ T397] __kasan_kmalloc+0xd4/0x100 [ 28.305499][ T397] __kmalloc+0x19f/0x330 [ 28.309745][ T397] l2tp_session_create+0x39/0xb60 [ 28.314901][ T397] pppol2tp_connect+0xbf5/0x1640 [ 28.320212][ T397] __sys_connect+0x3ce/0x450 [ 28.324789][ T397] __x64_sys_connect+0x7a/0x90 [ 28.329647][ T397] do_syscall_64+0x31/0x40 [ 28.334098][ T397] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 28.340078][ T397] [ 28.342387][ T397] Freed by task 397: [ 28.346351][ T397] kasan_set_track+0x4a/0x70 [ 28.350920][ T397] kasan_set_free_info+0x23/0x40 [ 28.355855][ T397] ____kasan_slab_free+0x125/0x160 [ 28.360965][ T397] __kasan_slab_free+0x11/0x20 [ 28.365797][ T397] slab_free_freelist_hook+0xc5/0x190 [ 28.371231][ T397] kfree+0xc0/0x270 [ 28.375026][ T397] l2tp_session_put+0xb2/0x1a0 [ 28.379768][ T397] l2tp_session_delete+0x3a9/0x4a0 [ 28.385019][ T397] pppol2tp_release+0x169/0x2b0 [ 28.389852][ T397] sock_close+0xb8/0x200 [ 28.394072][ T397] __fput+0x2dc/0x730 [ 28.398028][ T397] ____fput+0x15/0x20 [ 28.402002][ T397] task_work_run+0x127/0x190 [ 28.407019][ T397] exit_to_user_mode_loop+0xcb/0xe0 [ 28.412292][ T397] exit_to_user_mode_prepare+0x76/0xa0 [ 28.417844][ T397] syscall_exit_to_user_mode+0x1d/0x40 [ 28.423283][ T397] do_syscall_64+0x3d/0x40 [ 28.427766][ T397] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 28.433633][ T397] [ 28.435943][ T397] The buggy address belongs to the object at ffff888111180000 [ 28.435943][ T397] which belongs to the cache kmalloc-512 of size 512 [ 28.450065][ T397] The buggy address is located 336 bytes inside of [ 28.450065][ T397] 512-byte region [ffff888111180000, ffff888111180200) [ 28.463317][ T397] The buggy address belongs to the page: [ 28.469066][ T397] page:ffffea0004446000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111180 [ 28.479284][ T397] head:ffffea0004446000 order:2 compound_mapcount:0 compound_pincount:0 [ 28.487642][ T397] flags: 0x4000000000010200(slab|head) [ 28.493094][ T397] raw: 4000000000010200 0000000000000000 0000000100000001 ffff888100043080 [ 28.501721][ T397] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 28.510390][ T397] page dumped because: kasan: bad access detected [ 28.516793][ T397] page_owner tracks the page as allocated [ 28.522512][ T397] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 97, ts 4535414976, free_ts 0 [ 28.540468][ T397] prep_new_page+0x176/0x190 [ 28.545058][ T397] get_page_from_freelist+0x225f/0x23f0 [ 28.550596][ T397] __alloc_pages_nodemask+0x29a/0x640 [ 28.555943][ T397] new_slab+0x84/0x3f0 [ 28.559987][ T397] ___slab_alloc+0x2f8/0x4c0 [ 28.564549][ T397] __slab_alloc+0x63/0xa0 [ 28.568848][ T397] __kmalloc_track_caller+0x1e4/0x310 [ 28.574201][ T397] __alloc_skb+0xdc/0x520 [ 28.578524][ T397] alloc_skb_with_frags+0xa3/0x560 [ 28.583608][ T397] sock_alloc_send_pskb+0x87f/0x9a0 [ 28.588778][ T397] unix_dgram_sendmsg+0x6f3/0x18f0 [ 28.593866][ T397] sock_write_iter+0x2a6/0x3a0 [ 28.598615][ T397] vfs_write+0x770/0xd70 [ 28.602831][ T397] ksys_write+0x14a/0x260 [ 28.607129][ T397] __x64_sys_write+0x7b/0x90 [ 28.611793][ T397] do_syscall_64+0x31/0x40 [ 28.616182][ T397] page_owner free stack trace missing [ 28.621615][ T397] [ 28.624000][ T397] Memory state around the buggy address: [ 28.629612][ T397] ffff888111180000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.637664][ T397] ffff888111180080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.645961][ T397] >ffff888111180100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.654139][ T397] ^ [ 28.660972][ T397] ffff888111180180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.669033][ T397] ffff888111180200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.677078][ T397] ================================================================== [ 28.685144][ T397] Disabling lock debugging due to kernel taint