Warning: Permanently added '10.128.0.151' (ED25519) to the list of known hosts. 2026/07/14 13:46:51 parsed 1 programs 2026/07/14 13:46:51 serving rpc on tcp://44729 [ 24.621575][ T30] audit: type=1400 audit(1784036811.542:64): 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 [ 24.643787][ T30] audit: type=1400 audit(1784036811.542:65): 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 [ 25.268776][ T30] audit: type=1400 audit(1784036812.192:66): 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 [ 25.269840][ T299] cgroup: Unknown subsys name 'net' [ 25.292897][ T30] audit: type=1400 audit(1784036812.192:67): 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 [ 25.321724][ T30] audit: type=1400 audit(1784036812.222:68): 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 [ 25.321912][ T299] cgroup: Unknown subsys name 'devices' [ 25.466873][ T299] cgroup: Unknown subsys name 'hugetlb' [ 25.472552][ T299] cgroup: Unknown subsys name 'rlimit' [ 25.616320][ T30] audit: type=1400 audit(1784036812.542:69): 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 [ 25.644526][ T30] audit: type=1400 audit(1784036812.542:70): 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 [ 25.652586][ T303] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.665406][ T30] audit: type=1400 audit(1784036812.542:71): 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 Setting up swapspace version 1, size = 127995904 bytes [ 25.696116][ T30] audit: type=1400 audit(1784036812.542:72): 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 [ 25.704428][ T299] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.718896][ T30] audit: type=1400 audit(1784036812.542:73): 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 [ 26.183324][ T306] request_module fs-gadgetfs succeeded, but still no fs? [ 26.757033][ T336] syz-executor (336) used greatest stack depth: 21984 bytes left [ 26.771568][ T344] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.780164][ T344] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.788625][ T344] device bridge_slave_0 entered promiscuous mode [ 26.797638][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.806236][ T344] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.813710][ T344] device bridge_slave_1 entered promiscuous mode [ 26.853041][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.860505][ T344] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.869208][ T344] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.876990][ T344] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.895792][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.903845][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.911956][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.921404][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.931158][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.944096][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.958859][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.970098][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.977427][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.988751][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.003135][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.017609][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.038933][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.052143][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.066274][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.081116][ T344] device veth0_vlan entered promiscuous mode [ 27.091369][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.100839][ T344] device veth1_macvtap entered promiscuous mode [ 27.109641][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.130319][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.170826][ T344] syz-executor (344) used greatest stack depth: 20864 bytes left 2026/07/14 13:46:54 executed programs: 0 [ 27.462919][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.470654][ T368] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.478546][ T368] device bridge_slave_0 entered promiscuous mode [ 27.485986][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.493374][ T368] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.501285][ T368] device bridge_slave_1 entered promiscuous mode [ 27.542564][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.551039][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.559043][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.566669][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.584679][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.593621][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.601506][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.621820][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.630510][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.637791][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.647214][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.655719][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.663949][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.683910][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.693938][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.708150][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.723575][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 27.731927][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.741017][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.749672][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.762850][ T368] device veth0_vlan entered promiscuous mode [ 27.774257][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 27.783965][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.795711][ T368] device veth1_macvtap entered promiscuous mode [ 27.807075][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 27.815511][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 27.824341][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.838318][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 27.848931][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.872941][ T372] ================================================================== [ 27.881166][ T372] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 27.888245][ T372] Write of size 8 at addr ffff888110bf1550 by task syz.2.17/372 [ 27.897436][ T372] [ 27.900200][ T372] CPU: 1 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 [ 27.908032][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 27.919199][ T372] Call Trace: [ 27.922674][ T372] [ 27.926017][ T372] __dump_stack+0x21/0x30 [ 27.930428][ T372] dump_stack_lvl+0x110/0x170 [ 27.936417][ T372] ? show_regs_print_info+0x20/0x20 [ 27.944775][ T372] ? load_image+0x3f0/0x3f0 [ 27.950046][ T372] print_address_description+0x7f/0x2c0 [ 27.956509][ T372] ? mutex_lock+0x8e/0x1c0 [ 27.961149][ T372] kasan_report+0x10f/0x150 [ 27.967303][ T372] ? mutex_lock+0x8e/0x1c0 [ 27.972974][ T372] kasan_check_range+0x249/0x2a0 [ 27.978052][ T372] __kasan_check_write+0x14/0x20 [ 27.983755][ T372] mutex_lock+0x8e/0x1c0 [ 27.988630][ T372] ? wait_for_completion_killable_timeout+0x10/0x10 [ 27.995555][ T372] ? l2tp_session_put+0xaf/0x1a0 [ 28.000876][ T372] ? l2tp_session_delete+0x3a9/0x4a0 [ 28.007067][ T372] pppol2tp_release+0x178/0x2b0 [ 28.012708][ T372] sock_close+0xb8/0x200 [ 28.018132][ T372] ? sock_mmap+0xa0/0xa0 [ 28.022675][ T372] __fput+0x22b/0x900 [ 28.026956][ T372] ____fput+0x15/0x20 [ 28.033089][ T372] task_work_run+0x127/0x190 [ 28.038377][ T372] exit_to_user_mode_loop+0xd0/0xe0 [ 28.044619][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 28.050815][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 28.056982][ T372] do_syscall_64+0x58/0xa0 [ 28.062782][ T372] ? clear_bhb_loop+0x50/0xa0 [ 28.067675][ T372] ? clear_bhb_loop+0x50/0xa0 [ 28.073129][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.079859][ T372] RIP: 0033:0x7fbc34de3e59 [ 28.086382][ 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 [ 28.108653][ T372] RSP: 002b:00007ffe15363e78 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 28.117913][ T372] RAX: 0000000000000000 RBX: 00007ffe15363f60 RCX: 00007fbc34de3e59 [ 28.128392][ T372] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 28.139802][ T372] RBP: 0000000000006cb2 R08: 0000000000000001 R09: 0000000000000000 [ 28.150247][ T372] R10: 0000001b32f20000 R11: 0000000000000246 R12: 0000000000000000 [ 28.158856][ T372] R13: 00007fbc3506bfac R14: 00007fbc3506bfa8 R15: 00007fbc3506bfa0 [ 28.167704][ T372] [ 28.171483][ T372] [ 28.175371][ T372] Allocated by task 372: [ 28.180782][ T372] __kasan_kmalloc+0xd4/0x100 [ 28.187252][ T372] __kmalloc+0x13d/0x2c0 [ 28.192679][ T372] l2tp_session_create+0x39/0xb60 [ 28.198117][ T372] pppol2tp_connect+0xbf5/0x1640 [ 28.204503][ T372] __sys_connect+0x3cb/0x450 [ 28.210809][ T372] __x64_sys_connect+0x7a/0x90 [ 28.217167][ T372] x64_sys_call+0x7c/0x9a0 [ 28.222553][ T372] do_syscall_64+0x4c/0xa0 [ 28.227317][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.234128][ T372] [ 28.236982][ T372] Freed by task 372: [ 28.241138][ T372] kasan_set_track+0x4a/0x70 [ 28.246129][ T372] kasan_set_free_info+0x23/0x40 [ 28.253419][ T372] ____kasan_slab_free+0x125/0x160 [ 28.258735][ T372] __kasan_slab_free+0x11/0x20 [ 28.264277][ T372] slab_free_freelist_hook+0xc2/0x190 [ 28.271274][ T372] kfree+0xc4/0x270 [ 28.275282][ T372] l2tp_session_put+0xaf/0x1a0 [ 28.280040][ T372] l2tp_session_delete+0x3a9/0x4a0 [ 28.285234][ T372] pppol2tp_release+0x169/0x2b0 [ 28.290243][ T372] sock_close+0xb8/0x200 [ 28.294983][ T372] __fput+0x22b/0x900 [ 28.298973][ T372] ____fput+0x15/0x20 [ 28.302941][ T372] task_work_run+0x127/0x190 [ 28.307843][ T372] exit_to_user_mode_loop+0xd0/0xe0 [ 28.313149][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 28.318977][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 28.324443][ T372] do_syscall_64+0x58/0xa0 [ 28.329203][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.337001][ T372] [ 28.339735][ T372] The buggy address belongs to the object at ffff888110bf1400 [ 28.339735][ T372] which belongs to the cache kmalloc-512 of size 512 [ 28.355748][ T372] The buggy address is located 336 bytes inside of [ 28.355748][ T372] 512-byte region [ffff888110bf1400, ffff888110bf1600) [ 28.372218][ T372] The buggy address belongs to the page: [ 28.378432][ T372] page:ffffea000442fc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110bf0 [ 28.390685][ T372] head:ffffea000442fc00 order:2 compound_mapcount:0 compound_pincount:0 [ 28.399974][ T372] flags: 0x4000000000010200(slab|head|zone=1) [ 28.406647][ T372] raw: 4000000000010200 ffffea000442fb00 0000000300000003 ffff888100042f00 [ 28.415473][ T372] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 28.425450][ T372] page dumped because: kasan: bad access detected [ 28.432598][ T372] page_owner tracks the page as allocated [ 28.439046][ T372] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 105, ts 5712413021, free_ts 0 [ 28.460375][ T372] post_alloc_hook+0x192/0x1b0 [ 28.465961][ T372] prep_new_page+0x1c/0x110 [ 28.472125][ T372] get_page_from_freelist+0x2c3a/0x2cd0 [ 28.478316][ T372] __alloc_pages+0x1a2/0x460 [ 28.483883][ T372] new_slab+0xa0/0x4d0 [ 28.490476][ T372] ___slab_alloc+0x3ac/0x840 [ 28.496689][ T372] __slab_alloc+0x49/0x90 [ 28.501471][ T372] __kmalloc_track_caller+0x169/0x2c0 [ 28.507824][ T372] __alloc_skb+0x210/0x730 [ 28.513058][ T372] alloc_skb_with_frags+0xa8/0x620 [ 28.518588][ T372] sock_alloc_send_pskb+0x87f/0x9a0 [ 28.524222][ T372] unix_dgram_sendmsg+0x6f3/0x19b0 [ 28.530186][ T372] sock_write_iter+0x2a6/0x3a0 [ 28.534962][ T372] vfs_write+0x831/0xfd0 [ 28.539292][ T372] ksys_write+0x14a/0x260 [ 28.543954][ T372] __x64_sys_write+0x7b/0x90 [ 28.548539][ T372] page_owner free stack trace missing [ 28.554065][ T372] [ 28.556377][ T372] Memory state around the buggy address: [ 28.562071][ T372] ffff888110bf1400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.570571][ T372] ffff888110bf1480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.579567][ T372] >ffff888110bf1500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.587723][ T372] ^ [ 28.595101][ T372] ffff888110bf1580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.604522][ T372] ffff888110bf1600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.613919][ T372] ================================================================== [ 28.623552][ T372] Disabling lock debugging due to kernel taint