Warning: Permanently added '10.128.0.154' (ED25519) to the list of known hosts. 2026/09/23 22:51:42 parsed 1 programs 2026/09/23 22:51:42 serving rpc on tcp://37745 [ 23.769015][ T30] audit: type=1400 audit(1790203902.395:64): avc: denied { node_bind } for pid=293 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 23.790848][ T30] audit: type=1400 audit(1790203902.395:65): avc: denied { module_request } for pid=293 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 [ 24.536136][ T30] audit: type=1400 audit(1790203903.155:66): avc: denied { mounton } for pid=299 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 [ 24.537787][ T299] cgroup: Unknown subsys name 'net' [ 24.559865][ T30] audit: type=1400 audit(1790203903.165:67): avc: denied { mount } for pid=299 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 [ 24.590607][ T30] audit: type=1400 audit(1790203903.185:68): avc: denied { unmount } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.590781][ T299] cgroup: Unknown subsys name 'devices' [ 24.708246][ T299] cgroup: Unknown subsys name 'hugetlb' [ 24.713909][ T299] cgroup: Unknown subsys name 'rlimit' [ 24.825805][ T30] audit: type=1400 audit(1790203903.445:69): avc: denied { setattr } for pid=299 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 24.849885][ T30] audit: type=1400 audit(1790203903.445:70): avc: denied { create } for pid=299 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 [ 24.859371][ T304] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 24.871629][ T30] audit: type=1400 audit(1790203903.445:71): avc: denied { write } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.901730][ T299] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 24.901881][ T30] audit: type=1400 audit(1790203903.445:72): avc: denied { read } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.931890][ T30] audit: type=1400 audit(1790203903.445:73): avc: denied { mounton } for pid=299 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 [ 25.418302][ T306] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.425707][ T306] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.433429][ T306] device bridge_slave_0 entered promiscuous mode [ 25.440875][ T306] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.449249][ T306] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.457368][ T306] device bridge_slave_1 entered promiscuous mode [ 25.494402][ T306] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.502349][ T306] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.510664][ T306] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.518482][ T306] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.537479][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.545136][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.554545][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 25.568914][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.581526][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 25.590076][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.601986][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.611623][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 25.621003][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.629137][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.642748][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.652956][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.668303][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.679384][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.688607][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.696779][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.706750][ T306] device veth0_vlan entered promiscuous mode [ 25.717210][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.726894][ T306] device veth1_macvtap entered promiscuous mode [ 25.737549][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.748244][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.766727][ T306] request_module fs-gadgetfs succeeded, but still no fs? [ 25.793991][ T306] syz-executor (306) used greatest stack depth: 21632 bytes left [ 26.227237][ T43] device bridge_slave_1 left promiscuous mode [ 26.234249][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.245465][ T43] device bridge_slave_0 left promiscuous mode [ 26.252140][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.266482][ T43] device veth1_macvtap left promiscuous mode [ 26.273033][ T43] device veth0_vlan left promiscuous mode 2026/09/23 22:51:45 executed programs: 0 [ 26.755160][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.762939][ T368] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.771195][ T368] device bridge_slave_0 entered promiscuous mode [ 26.778220][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.785270][ T368] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.792959][ T368] device bridge_slave_1 entered promiscuous mode [ 26.846693][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.853838][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.861944][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.869384][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.886329][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.894429][ T315] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.902237][ T315] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.919058][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.927278][ T315] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.934631][ T315] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.943592][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.952634][ T315] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.960142][ T315] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.979299][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.988610][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.009984][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.020579][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.029595][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.037575][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.045986][ T368] device veth0_vlan entered promiscuous mode [ 27.063745][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.073116][ T368] device veth1_macvtap entered promiscuous mode [ 27.082528][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.092894][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.122725][ T372] ================================================================== [ 27.131187][ T372] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 27.138390][ T372] Write of size 8 at addr ffff888110c07550 by task syz.2.17/372 [ 27.146349][ T372] [ 27.148690][ T372] CPU: 1 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 [ 27.156050][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 27.166319][ T372] Call Trace: [ 27.169681][ T372] [ 27.172804][ T372] __dump_stack+0x21/0x30 [ 27.177406][ T372] dump_stack_lvl+0x110/0x170 [ 27.182105][ T372] ? show_regs_print_info+0x20/0x20 [ 27.187489][ T372] ? load_image+0x3f0/0x3f0 [ 27.191998][ T372] print_address_description+0x7f/0x2c0 [ 27.198116][ T372] ? mutex_lock+0x8e/0x1c0 [ 27.202635][ T372] kasan_report+0x10f/0x150 [ 27.207503][ T372] ? mutex_lock+0x8e/0x1c0 [ 27.211970][ T372] kasan_check_range+0x249/0x2a0 [ 27.217064][ T372] __kasan_check_write+0x14/0x20 [ 27.222208][ T372] mutex_lock+0x8e/0x1c0 [ 27.226666][ T372] ? wait_for_completion_killable_timeout+0x10/0x10 [ 27.234277][ T372] ? l2tp_session_put+0xaf/0x1a0 [ 27.241014][ T372] ? l2tp_session_delete+0x3a9/0x4a0 [ 27.247487][ T372] pppol2tp_release+0x178/0x2b0 [ 27.252434][ T372] sock_close+0xb8/0x200 [ 27.256762][ T372] ? sock_mmap+0xa0/0xa0 [ 27.261080][ T372] __fput+0x22b/0x900 [ 27.265346][ T372] ____fput+0x15/0x20 [ 27.269806][ T372] task_work_run+0x127/0x190 [ 27.275503][ T372] exit_to_user_mode_loop+0xd0/0xe0 [ 27.281151][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 27.287120][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 27.292586][ T372] do_syscall_64+0x58/0xa0 [ 27.297006][ T372] ? clear_bhb_loop+0x50/0xa0 [ 27.301764][ T372] ? clear_bhb_loop+0x50/0xa0 [ 27.306550][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.312977][ T372] RIP: 0033:0x7efe63911159 [ 27.317472][ T372] 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 [ 27.338457][ T372] RSP: 002b:00007ffcb9452968 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 27.348111][ T372] RAX: 0000000000000000 RBX: 00007ffcb9452a50 RCX: 00007efe63911159 [ 27.356536][ T372] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 27.365107][ T372] RBP: 00000000000069d6 R08: 0000000000000001 R09: 0000000000000000 [ 27.373715][ T372] R10: 0000001b32f20000 R11: 0000000000000246 R12: 0000000000000000 [ 27.382415][ T372] R13: 00007efe63b98fac R14: 00007efe63b98fa8 R15: 00007efe63b98fa0 [ 27.391050][ T372] [ 27.394223][ T372] [ 27.396915][ T372] Allocated by task 372: [ 27.401516][ T372] __kasan_kmalloc+0xd4/0x100 [ 27.406332][ T372] __kmalloc+0x13d/0x2c0 [ 27.410695][ T372] l2tp_session_create+0x39/0xb60 [ 27.416450][ T372] pppol2tp_connect+0xbf5/0x1640 [ 27.422281][ T372] __sys_connect+0x3cb/0x450 [ 27.427118][ T372] __x64_sys_connect+0x7a/0x90 [ 27.431979][ T372] x64_sys_call+0x7c/0x9a0 [ 27.436492][ T372] do_syscall_64+0x4c/0xa0 [ 27.441505][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.447433][ T372] [ 27.449775][ T372] Freed by task 372: [ 27.454009][ T372] kasan_set_track+0x4a/0x70 [ 27.458689][ T372] kasan_set_free_info+0x23/0x40 [ 27.463627][ T372] ____kasan_slab_free+0x125/0x160 [ 27.468837][ T372] __kasan_slab_free+0x11/0x20 [ 27.473872][ T372] slab_free_freelist_hook+0xc2/0x190 [ 27.479474][ T372] kfree+0xc4/0x270 [ 27.483499][ T372] l2tp_session_put+0xaf/0x1a0 [ 27.488400][ T372] l2tp_session_delete+0x3a9/0x4a0 [ 27.493751][ T372] pppol2tp_release+0x169/0x2b0 [ 27.498749][ T372] sock_close+0xb8/0x200 [ 27.503305][ T372] __fput+0x22b/0x900 [ 27.507673][ T372] ____fput+0x15/0x20 [ 27.512029][ T372] task_work_run+0x127/0x190 [ 27.516802][ T372] exit_to_user_mode_loop+0xd0/0xe0 [ 27.522007][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 27.527673][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 27.533988][ T372] do_syscall_64+0x58/0xa0 [ 27.538606][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.544702][ T372] [ 27.547030][ T372] The buggy address belongs to the object at ffff888110c07400 [ 27.547030][ T372] which belongs to the cache kmalloc-512 of size 512 [ 27.561370][ T372] The buggy address is located 336 bytes inside of [ 27.561370][ T372] 512-byte region [ffff888110c07400, ffff888110c07600) [ 27.575401][ T372] The buggy address belongs to the page: [ 27.581743][ T372] page:ffffea0004430100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110c04 [ 27.593037][ T372] head:ffffea0004430100 order:2 compound_mapcount:0 compound_pincount:0 [ 27.601678][ T372] flags: 0x4000000000010200(slab|head|zone=1) [ 27.608264][ T372] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 27.617213][ T372] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 27.625816][ T372] page dumped because: kasan: bad access detected [ 27.632238][ T372] page_owner tracks the page as allocated [ 27.638300][ T372] 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 368, ts 27110062654, free_ts 26829429071 [ 27.658809][ T372] post_alloc_hook+0x192/0x1b0 [ 27.663607][ T372] prep_new_page+0x1c/0x110 [ 27.668250][ T372] get_page_from_freelist+0x2c3a/0x2cd0 [ 27.674118][ T372] __alloc_pages+0x1a2/0x460 [ 27.678941][ T372] new_slab+0xa0/0x4d0 [ 27.683029][ T372] ___slab_alloc+0x3ac/0x840 [ 27.687872][ T372] __slab_alloc+0x49/0x90 [ 27.692362][ T372] kmem_cache_alloc_trace+0x146/0x270 [ 27.697764][ T372] ipv6_add_addr+0x408/0xd90 [ 27.702460][ T372] inet6_addr_add+0x446/0x9d0 [ 27.707151][ T372] inet6_rtm_newaddr+0x6e7/0x9c0 [ 27.712090][ T372] rtnetlink_rcv_msg+0x9fd/0xcb0 [ 27.717111][ T372] netlink_rcv_skb+0x1e9/0x430 [ 27.721878][ T372] rtnetlink_rcv+0x1c/0x20 [ 27.727153][ T372] netlink_unicast+0x86c/0xa30 [ 27.733930][ T372] netlink_sendmsg+0x879/0xb80 [ 27.739431][ T372] page last free stack trace: [ 27.744101][ T372] free_unref_page_prepare+0x5fa/0x600 [ 27.750209][ T372] free_unref_page+0xae/0x540 [ 27.755304][ T372] __free_pages+0x6c/0x100 [ 27.760200][ T372] __free_slab+0xe5/0x1e0 [ 27.764872][ T372] __unfreeze_partials+0x15a/0x190 [ 27.770213][ T372] put_cpu_partial+0xc6/0x120 [ 27.775391][ T372] __slab_free+0x1d4/0x290 [ 27.780186][ T372] ___cache_free+0x104/0x120 [ 27.785047][ T372] qlink_free+0x4d/0x90 [ 27.789397][ T372] qlist_free_all+0x5f/0xb0 [ 27.794077][ T372] kasan_quarantine_reduce+0x14a/0x170 [ 27.799968][ T372] __kasan_slab_alloc+0x2f/0xe0 [ 27.804843][ T372] slab_post_alloc_hook+0x4f/0x2b0 [ 27.810100][ T372] __kmalloc_track_caller+0x11f/0x2c0 [ 27.816821][ T372] kvasprintf+0xe3/0x1a0 [ 27.821233][ T372] kvasprintf_const+0xf2/0x240 [ 27.826203][ T372] [ 27.828543][ T372] Memory state around the buggy address: [ 27.834430][ T372] ffff888110c07400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.842769][ T372] ffff888110c07480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.851632][ T372] >ffff888110c07500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.859701][ T372] ^ [ 27.866556][ T372] ffff888110c07580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.874835][ T372] ffff888110c07600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.883272][ T372] ================================================================== [ 27.891456][ T372] Disabling lock debugging due to kernel taint