Warning: Permanently added '10.128.1.43' (ED25519) to the list of known hosts. 2026/06/25 13:56:58 parsed 1 programs 2026/06/25 13:56:58 serving rpc on tcp://35089 [ 25.155541][ T24] audit: type=1400 audit(1782395818.220:64): 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 [ 25.176713][ T24] audit: type=1400 audit(1782395818.220:65): 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 [ 25.196759][ T24] audit: type=1400 audit(1782395818.220:66): 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 [ 26.125001][ T24] audit: type=1400 audit(1782395819.190:67): 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 [ 26.129155][ T293] cgroup: Unknown subsys name 'net' [ 26.154641][ T24] audit: type=1400 audit(1782395819.190:68): 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 [ 26.185520][ T24] audit: type=1400 audit(1782395819.220:69): 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 [ 26.186015][ T293] cgroup: Unknown subsys name 'devices' [ 26.334204][ T293] cgroup: Unknown subsys name 'hugetlb' [ 26.340587][ T293] cgroup: Unknown subsys name 'rlimit' [ 26.489126][ T24] audit: type=1400 audit(1782395819.550:70): 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 [ 26.512690][ T24] audit: type=1400 audit(1782395819.550:71): 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 [ 26.533309][ T24] audit: type=1400 audit(1782395819.550:72): 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 [ 26.554031][ T24] audit: type=1400 audit(1782395819.550:73): 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 Setting up swapspace version 1, size = 127995904 bytes [ 26.588168][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.631986][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.087413][ T303] request_module fs-gadgetfs succeeded, but still no fs? [ 27.104035][ T303] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 27.679503][ T350] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.686698][ T350] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.694324][ T350] device bridge_slave_0 entered promiscuous mode [ 27.701712][ T350] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.710347][ T350] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.717906][ T350] device bridge_slave_1 entered promiscuous mode [ 27.762808][ T350] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.770000][ T350] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.777366][ T350] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.784520][ T350] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.803149][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.810798][ T323] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.818460][ T323] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.832618][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.840780][ T323] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.847930][ T323] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.856941][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.865446][ T323] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.873539][ T323] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.892786][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.902570][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.920010][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.931543][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.940038][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.948244][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.959816][ T350] device veth0_vlan entered promiscuous mode [ 27.969832][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.979806][ T350] device veth1_macvtap entered promiscuous mode [ 27.995746][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.006335][ T323] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/06/25 13:57:01 executed programs: 0 [ 28.305718][ T383] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.313137][ T383] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.320515][ T383] device bridge_slave_0 entered promiscuous mode [ 28.327809][ T383] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.335426][ T383] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.342931][ T383] device bridge_slave_1 entered promiscuous mode [ 28.382679][ T383] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.389747][ T383] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.397086][ T383] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.404169][ T383] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.421515][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.429930][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.437594][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.446962][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.455579][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.462725][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.471379][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.479766][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.486980][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.499038][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.513820][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.528024][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.544892][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.553224][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.560813][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.569181][ T383] device veth0_vlan entered promiscuous mode [ 28.586274][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.597638][ T383] device veth1_macvtap entered promiscuous mode [ 28.612629][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 28.621223][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.631042][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 28.639528][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.664634][ T387] ================================================================== [ 28.673054][ T387] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 28.680044][ T387] Write of size 8 at addr ffff8881111bcd50 by task syz.2.17/387 [ 28.687792][ T387] [ 28.690278][ T387] CPU: 0 PID: 387 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.697508][ T387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 28.708174][ T387] Call Trace: [ 28.711558][ T387] __dump_stack+0x21/0x24 [ 28.716098][ T387] dump_stack_lvl+0x1a7/0x208 [ 28.720903][ T387] ? show_regs_print_info+0x18/0x18 [ 28.726235][ T387] ? thaw_kernel_threads+0x220/0x220 [ 28.731628][ T387] ? debug_smp_processor_id+0x17/0x20 [ 28.737000][ T387] print_address_description+0x7f/0x2c0 [ 28.742656][ T387] ? mutex_lock+0x85/0xf0 [ 28.747088][ T387] kasan_report+0x100/0x140 [ 28.752072][ T387] ? mutex_lock+0x85/0xf0 [ 28.756547][ T387] kasan_check_range+0x249/0x2a0 [ 28.761663][ T387] __kasan_check_write+0x14/0x20 [ 28.766617][ T387] mutex_lock+0x85/0xf0 [ 28.770793][ T387] ? mutex_trylock+0xb0/0xb0 [ 28.775386][ T387] ? l2tp_session_put+0xb2/0x1a0 [ 28.780755][ T387] ? l2tp_session_delete+0x3a9/0x4a0 [ 28.787674][ T387] pppol2tp_release+0x178/0x2b0 [ 28.792928][ T387] sock_close+0xb8/0x200 [ 28.797247][ T387] ? sock_mmap+0xa0/0xa0 [ 28.802062][ T387] __fput+0x2dc/0x730 [ 28.806223][ T387] ____fput+0x15/0x20 [ 28.810673][ T387] task_work_run+0x127/0x190 [ 28.815502][ T387] exit_to_user_mode_loop+0xcb/0xe0 [ 28.821098][ T387] exit_to_user_mode_prepare+0x76/0xa0 [ 28.826788][ T387] syscall_exit_to_user_mode+0x1d/0x40 [ 28.832421][ T387] do_syscall_64+0x3d/0x40 [ 28.839451][ T387] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 28.845573][ T387] RIP: 0033:0x7f20aeaf0e59 [ 28.849992][ T387] 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 [ 28.872192][ T387] RSP: 002b:00007ffec62ddcc8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 28.880820][ T387] RAX: 0000000000000000 RBX: 00007ffec62dddb0 RCX: 00007f20aeaf0e59 [ 28.889003][ T387] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 28.900056][ T387] RBP: 0000000000006fa4 R08: 0000000000000001 R09: 0000000000000000 [ 28.913389][ T387] R10: 0000001b33e20000 R11: 0000000000000246 R12: 0000000000000000 [ 28.924169][ T387] R13: 00007f20aed69fac R14: 00007f20aed69fa8 R15: 00007f20aed69fa0 [ 28.932670][ T387] [ 28.935002][ T387] Allocated by task 387: [ 28.939345][ T387] __kasan_kmalloc+0xd4/0x100 [ 28.945852][ T387] __kmalloc+0x19f/0x330 [ 28.951450][ T387] l2tp_session_create+0x39/0xb60 [ 28.956492][ T387] pppol2tp_connect+0xbf5/0x1640 [ 28.961693][ T387] __sys_connect+0x3ce/0x450 [ 28.966308][ T387] __x64_sys_connect+0x7a/0x90 [ 28.971242][ T387] do_syscall_64+0x31/0x40 [ 28.975684][ T387] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 28.981831][ T387] [ 28.984181][ T387] Freed by task 387: [ 28.988802][ T387] kasan_set_track+0x4a/0x70 [ 28.993411][ T387] kasan_set_free_info+0x23/0x40 [ 28.998477][ T387] ____kasan_slab_free+0x125/0x160 [ 29.004241][ T387] __kasan_slab_free+0x11/0x20 [ 29.009308][ T387] slab_free_freelist_hook+0xc5/0x190 [ 29.014777][ T387] kfree+0xc0/0x270 [ 29.018619][ T387] l2tp_session_put+0xb2/0x1a0 [ 29.023392][ T387] l2tp_session_delete+0x3a9/0x4a0 [ 29.028528][ T387] pppol2tp_release+0x169/0x2b0 [ 29.033385][ T387] sock_close+0xb8/0x200 [ 29.037630][ T387] __fput+0x2dc/0x730 [ 29.041728][ T387] ____fput+0x15/0x20 [ 29.045715][ T387] task_work_run+0x127/0x190 [ 29.050401][ T387] exit_to_user_mode_loop+0xcb/0xe0 [ 29.055605][ T387] exit_to_user_mode_prepare+0x76/0xa0 [ 29.061071][ T387] syscall_exit_to_user_mode+0x1d/0x40 [ 29.066963][ T387] do_syscall_64+0x3d/0x40 [ 29.071527][ T387] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 29.077794][ T387] [ 29.080139][ T387] The buggy address belongs to the object at ffff8881111bcc00 [ 29.080139][ T387] which belongs to the cache kmalloc-512 of size 512 [ 29.094496][ T387] The buggy address is located 336 bytes inside of [ 29.094496][ T387] 512-byte region [ffff8881111bcc00, ffff8881111bce00) [ 29.108024][ T387] The buggy address belongs to the page: [ 29.113744][ T387] page:ffffea0004446f00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1111bc [ 29.124095][ T387] head:ffffea0004446f00 order:2 compound_mapcount:0 compound_pincount:0 [ 29.132652][ T387] flags: 0x4000000000010200(slab|head) [ 29.138336][ T387] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 29.147132][ T387] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 29.158273][ T387] page dumped because: kasan: bad access detected [ 29.164804][ T387] page_owner tracks the page as allocated [ 29.171031][ T387] 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 383, ts 28654302738, free_ts 28650751258 [ 29.191647][ T387] prep_new_page+0x176/0x190 [ 29.196270][ T387] get_page_from_freelist+0x225f/0x23f0 [ 29.202030][ T387] __alloc_pages_nodemask+0x29a/0x640 [ 29.208318][ T387] new_slab+0x84/0x3f0 [ 29.212425][ T387] ___slab_alloc+0x2f8/0x4c0 [ 29.217834][ T387] __slab_alloc+0x63/0xa0 [ 29.222460][ T387] __kmalloc+0x1f9/0x330 [ 29.226725][ T387] qdisc_alloc+0x79/0x720 [ 29.231073][ T387] qdisc_create_dflt+0x6b/0x390 [ 29.236117][ T387] dev_activate+0x292/0x11c0 [ 29.240718][ T387] __dev_open+0x3e9/0x500 [ 29.245058][ T387] __dev_change_flags+0x1e4/0x6a0 [ 29.250346][ T387] dev_change_flags+0x80/0x1a0 [ 29.255388][ T387] do_setlink+0xb19/0x29a0 [ 29.260441][ T387] rtnl_newlink+0x13e6/0x1830 [ 29.265164][ T387] rtnetlink_rcv_msg+0x9e9/0xca0 [ 29.270478][ T387] page last free stack trace: [ 29.275189][ T387] __free_pages_ok+0x80b/0x830 [ 29.279972][ T387] __free_pages+0xd8/0x390 [ 29.284674][ T387] __free_slab+0xcf/0x190 [ 29.289025][ T387] unfreeze_partials+0x150/0x180 [ 29.294054][ T387] put_cpu_partial+0xc1/0x180 [ 29.299428][ T387] __slab_free+0x2c9/0x3a0 [ 29.303871][ T387] ___cache_free+0x10e/0x130 [ 29.308493][ T387] qlink_free+0x50/0x90 [ 29.312884][ T387] qlist_free_all+0x5f/0xb0 [ 29.317895][ T387] kasan_quarantine_reduce+0x14a/0x160 [ 29.324697][ T387] __kasan_slab_alloc+0x2f/0xe0 [ 29.330012][ T387] slab_post_alloc_hook+0x5d/0x2f0 [ 29.335281][ T387] kmem_cache_alloc+0x15a/0x2d0 [ 29.341243][ T387] sock_alloc_inode+0x1b/0xb0 [ 29.346372][ T387] new_inode_pseudo+0x62/0x210 [ 29.351198][ T387] __sock_create+0x12c/0x770 [ 29.356223][ T387] [ 29.361698][ T387] Memory state around the buggy address: [ 29.370369][ T387] ffff8881111bcc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.380839][ T387] ffff8881111bcc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.389826][ T387] >ffff8881111bcd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.398394][ T387] ^ [ 29.405324][ T387] ffff8881111bcd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.418315][ T387] ffff8881111bce00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.427219][ T387] ================================================================== [ 29.435962][ T387] Disabling lock debugging due to kernel taint