Warning: Permanently added '10.128.0.13' (ED25519) to the list of known hosts. 2026/07/12 05:37:14 parsed 1 programs 2026/07/12 05:37:14 serving rpc on tcp://35349 [ 20.744071][ T24] audit: type=1400 audit(1783834634.799:64): 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 [ 20.747713][ T24] audit: type=1400 audit(1783834634.799:65): 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 [ 20.753821][ T24] audit: type=1400 audit(1783834634.799:66): 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 [ 21.331324][ T24] audit: type=1400 audit(1783834635.389:67): 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 [ 21.332327][ T293] cgroup: Unknown subsys name 'net' [ 21.353980][ T24] audit: type=1400 audit(1783834635.389:68): 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 [ 21.381221][ T24] audit: type=1400 audit(1783834635.419:69): 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 [ 21.381408][ T293] cgroup: Unknown subsys name 'devices' [ 21.497707][ T293] cgroup: Unknown subsys name 'hugetlb' [ 21.503348][ T293] cgroup: Unknown subsys name 'rlimit' [ 21.645942][ T24] audit: type=1400 audit(1783834635.699:70): 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 [ 21.669229][ T24] audit: type=1400 audit(1783834635.709:71): 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 [ 21.670438][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 21.689577][ T24] audit: type=1400 audit(1783834635.709:72): 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 [ 21.718363][ T24] audit: type=1400 audit(1783834635.709:73): 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 [ 21.738660][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 22.153254][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 22.163694][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 22.653341][ T351] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.660463][ T351] bridge0: port 1(bridge_slave_0) entered disabled state [ 22.667892][ T351] device bridge_slave_0 entered promiscuous mode [ 22.674806][ T351] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.681857][ T351] bridge0: port 2(bridge_slave_1) entered disabled state [ 22.689254][ T351] device bridge_slave_1 entered promiscuous mode [ 22.724570][ T351] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.731624][ T351] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.738908][ T351] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.745935][ T351] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.762768][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 22.770340][ T335] bridge0: port 1(bridge_slave_0) entered disabled state [ 22.777980][ T335] bridge0: port 2(bridge_slave_1) entered disabled state [ 22.787214][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 22.795364][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.802400][ T335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.810546][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 22.818723][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.825733][ T335] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.836939][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 22.845600][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 22.858095][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 22.868700][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 22.876745][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 22.884082][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 22.892012][ T351] device veth0_vlan entered promiscuous mode [ 22.901210][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 22.910112][ T351] device veth1_macvtap entered promiscuous mode [ 22.918678][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 22.928169][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/12 05:37:17 executed programs: 0 [ 23.116985][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.124035][ T363] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.131670][ T363] device bridge_slave_0 entered promiscuous mode [ 23.138656][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.145680][ T363] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.153459][ T363] device bridge_slave_1 entered promiscuous mode [ 23.191197][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.198252][ T363] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.205498][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.212534][ T363] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.234378][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.241978][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.249373][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.258258][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 23.266506][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.273512][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.282753][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 23.291005][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.298042][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.312587][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 23.321971][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 23.341521][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 23.352342][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 23.360568][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 23.368159][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 23.376560][ T363] device veth0_vlan entered promiscuous mode [ 23.385318][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 23.400163][ T363] device veth1_macvtap entered promiscuous mode [ 23.408691][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 23.418223][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 23.439557][ T367] ================================================================== [ 23.447659][ T367] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 23.454312][ T367] Write of size 8 at addr ffff8881110bd150 by task syz.2.17/367 [ 23.461912][ T367] [ 23.464229][ T367] CPU: 1 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 23.471306][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 23.481339][ T367] Call Trace: [ 23.484627][ T367] __dump_stack+0x21/0x24 [ 23.488960][ T367] dump_stack_lvl+0x1a7/0x208 [ 23.493613][ T367] ? show_regs_print_info+0x18/0x18 [ 23.498793][ T367] ? thaw_kernel_threads+0x220/0x220 [ 23.504056][ T367] print_address_description+0x7f/0x2c0 [ 23.509575][ T367] ? mutex_lock+0x85/0xf0 [ 23.513880][ T367] kasan_report+0x100/0x140 [ 23.518354][ T367] ? mutex_lock+0x85/0xf0 [ 23.522655][ T367] kasan_check_range+0x249/0x2a0 [ 23.527569][ T367] __kasan_check_write+0x14/0x20 [ 23.532482][ T367] mutex_lock+0x85/0xf0 [ 23.536610][ T367] ? mutex_trylock+0xb0/0xb0 [ 23.541263][ T367] ? l2tp_session_put+0xb2/0x1a0 [ 23.546174][ T367] ? l2tp_session_delete+0x3a9/0x4a0 [ 23.551521][ T367] pppol2tp_release+0x178/0x2b0 [ 23.556345][ T367] sock_close+0xb8/0x200 [ 23.560565][ T367] ? sock_mmap+0xa0/0xa0 [ 23.564775][ T367] __fput+0x2dc/0x730 [ 23.568728][ T367] ____fput+0x15/0x20 [ 23.572687][ T367] task_work_run+0x127/0x190 [ 23.577251][ T367] exit_to_user_mode_loop+0xcb/0xe0 [ 23.582419][ T367] exit_to_user_mode_prepare+0x76/0xa0 [ 23.587856][ T367] syscall_exit_to_user_mode+0x1d/0x40 [ 23.593293][ T367] do_syscall_64+0x3d/0x40 [ 23.597681][ T367] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.603545][ T367] RIP: 0033:0x7fdb798bde59 [ 23.607934][ T367] 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 [ 23.627515][ T367] RSP: 002b:00007ffc52ef3928 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 23.635905][ T367] RAX: 0000000000000000 RBX: 00007ffc52ef3a10 RCX: 00007fdb798bde59 [ 23.643857][ T367] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 23.651806][ T367] RBP: 0000000000005b7e R08: 0000000000000001 R09: 0000000000000000 [ 23.659752][ T367] R10: 0000001b32a20000 R11: 0000000000000246 R12: 0000000000000000 [ 23.667696][ T367] R13: 00007fdb79b45fac R14: 00007fdb79b45fa8 R15: 00007fdb79b45fa0 [ 23.675642][ T367] [ 23.677943][ T367] Allocated by task 367: [ 23.682159][ T367] __kasan_kmalloc+0xd4/0x100 [ 23.686805][ T367] __kmalloc+0x19f/0x330 [ 23.691017][ T367] l2tp_session_create+0x39/0xb60 [ 23.696013][ T367] pppol2tp_connect+0xbf5/0x1640 [ 23.700935][ T367] __sys_connect+0x3ce/0x450 [ 23.705501][ T367] __x64_sys_connect+0x7a/0x90 [ 23.710236][ T367] do_syscall_64+0x31/0x40 [ 23.714626][ T367] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.720489][ T367] [ 23.722794][ T367] Freed by task 367: [ 23.726681][ T367] kasan_set_track+0x4a/0x70 [ 23.731238][ T367] kasan_set_free_info+0x23/0x40 [ 23.736149][ T367] ____kasan_slab_free+0x125/0x160 [ 23.741239][ T367] __kasan_slab_free+0x11/0x20 [ 23.745980][ T367] slab_free_freelist_hook+0xc5/0x190 [ 23.751323][ T367] kfree+0xc0/0x270 [ 23.755099][ T367] l2tp_session_put+0xb2/0x1a0 [ 23.759833][ T367] l2tp_session_delete+0x3a9/0x4a0 [ 23.764913][ T367] pppol2tp_release+0x169/0x2b0 [ 23.769741][ T367] sock_close+0xb8/0x200 [ 23.773961][ T367] __fput+0x2dc/0x730 [ 23.777922][ T367] ____fput+0x15/0x20 [ 23.781876][ T367] task_work_run+0x127/0x190 [ 23.786444][ T367] exit_to_user_mode_loop+0xcb/0xe0 [ 23.791614][ T367] exit_to_user_mode_prepare+0x76/0xa0 [ 23.797044][ T367] syscall_exit_to_user_mode+0x1d/0x40 [ 23.802473][ T367] do_syscall_64+0x3d/0x40 [ 23.806862][ T367] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.812721][ T367] [ 23.815023][ T367] The buggy address belongs to the object at ffff8881110bd000 [ 23.815023][ T367] which belongs to the cache kmalloc-512 of size 512 [ 23.829057][ T367] The buggy address is located 336 bytes inside of [ 23.829057][ T367] 512-byte region [ffff8881110bd000, ffff8881110bd200) [ 23.842310][ T367] The buggy address belongs to the page: [ 23.847936][ T367] page:ffffea0004442f00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1110bc [ 23.858143][ T367] head:ffffea0004442f00 order:2 compound_mapcount:0 compound_pincount:0 [ 23.866456][ T367] flags: 0x4000000000010200(slab|head) [ 23.871893][ T367] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 23.880455][ T367] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 23.889010][ T367] page dumped because: kasan: bad access detected [ 23.895396][ T367] page_owner tracks the page as allocated [ 23.901124][ T367] 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 23430383738, free_ts 23429063780 [ 23.921495][ T367] prep_new_page+0x176/0x190 [ 23.926062][ T367] get_page_from_freelist+0x225f/0x23f0 [ 23.931579][ T367] __alloc_pages_nodemask+0x29a/0x640 [ 23.936924][ T367] new_slab+0x84/0x3f0 [ 23.940966][ T367] ___slab_alloc+0x2f8/0x4c0 [ 23.945525][ T367] __slab_alloc+0x63/0xa0 [ 23.949827][ T367] kmem_cache_alloc_trace+0x1a8/0x2e0 [ 23.955296][ T367] rtnl_newlink+0x14b/0x1830 [ 23.959879][ T367] rtnetlink_rcv_msg+0x9e9/0xca0 [ 23.964806][ T367] netlink_rcv_skb+0x1e9/0x430 [ 23.969551][ T367] rtnetlink_rcv+0x1c/0x20 [ 23.973945][ T367] netlink_unicast+0x86c/0xa30 [ 23.978680][ T367] netlink_sendmsg+0x949/0xb70 [ 23.983416][ T367] __sys_sendto+0x467/0x620 [ 23.988055][ T367] __x64_sys_sendto+0xe5/0x100 [ 23.992815][ T367] do_syscall_64+0x31/0x40 [ 23.997206][ T367] page last free stack trace: [ 24.001870][ T367] __free_pages_ok+0x80b/0x830 [ 24.006629][ T367] __free_pages+0xd8/0x390 [ 24.011161][ T367] __free_slab+0xcf/0x190 [ 24.015474][ T367] unfreeze_partials+0x150/0x180 [ 24.020400][ T367] put_cpu_partial+0xc1/0x180 [ 24.025175][ T367] __slab_free+0x2c9/0x3a0 [ 24.029574][ T367] ___cache_free+0x10e/0x130 [ 24.034139][ T367] qlink_free+0x50/0x90 [ 24.038266][ T367] qlist_free_all+0x5f/0xb0 [ 24.042741][ T367] kasan_quarantine_reduce+0x14a/0x160 [ 24.048171][ T367] __kasan_slab_alloc+0x2f/0xe0 [ 24.052995][ T367] slab_post_alloc_hook+0x5d/0x2f0 [ 24.058080][ T367] __kmalloc+0x17b/0x330 [ 24.062295][ T367] fib_create_info+0x8eb/0x1ed0 [ 24.067119][ T367] fib_table_insert+0xc2/0x1d50 [ 24.071942][ T367] fib_add_ifaddr+0xa5d/0xf90 [ 24.076586][ T367] [ 24.078887][ T367] Memory state around the buggy address: [ 24.084488][ T367] ffff8881110bd000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.092522][ T367] ffff8881110bd080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.100564][ T367] >ffff8881110bd100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.108601][ T367] ^ [ 24.115250][ T367] ffff8881110bd180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.123287][ T367] ffff8881110bd200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.131329][ T367] ================================================================== [ 24.139371][ T367] Disabling lock debugging due to kernel taint