cess permissive=1 [ 15.002341][ T24] audit: type=1400 audit(1784377376.100:63): avc: denied { siginh } for pid=217 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.174' (ED25519) to the list of known hosts. 2026/07/18 12:23:10 parsed 1 programs 2026/07/18 12:23:10 serving rpc on tcp://35475 [ 28.939746][ T24] audit: type=1400 audit(1784377390.050:64): 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 [ 28.961056][ T24] audit: type=1400 audit(1784377390.050:65): 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 [ 28.980835][ T24] audit: type=1400 audit(1784377390.050:66): 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 [ 29.546093][ T24] audit: type=1400 audit(1784377390.660:67): 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 [ 29.547093][ T293] cgroup: Unknown subsys name 'net' [ 29.568739][ T24] audit: type=1400 audit(1784377390.660:68): 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 [ 29.595960][ T24] audit: type=1400 audit(1784377390.690:69): 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 [ 29.596128][ T293] cgroup: Unknown subsys name 'devices' [ 29.712602][ T293] cgroup: Unknown subsys name 'hugetlb' [ 29.718197][ T293] cgroup: Unknown subsys name 'rlimit' [ 29.831536][ T24] audit: type=1400 audit(1784377390.950:70): 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 [ 29.854746][ T24] audit: type=1400 audit(1784377390.950:71): 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 [ 29.860183][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 29.875287][ T24] audit: type=1400 audit(1784377390.950:72): 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 [ 29.903887][ T24] audit: type=1400 audit(1784377390.950:73): 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 [ 30.018798][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 30.387699][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 30.398196][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 30.465184][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.472258][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 30.479529][ T304] device bridge_slave_0 entered promiscuous mode [ 30.486482][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.493505][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 30.500769][ T304] device bridge_slave_1 entered promiscuous mode [ 30.533053][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.540072][ T304] bridge0: port 2(bridge_slave_1) entered forwarding state [ 30.547360][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.554378][ T304] bridge0: port 1(bridge_slave_0) entered forwarding state [ 30.569656][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 30.576945][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 30.584642][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 30.592024][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 30.601742][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 30.609932][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.616964][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 30.625447][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 30.633642][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.640648][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 30.652720][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 30.661584][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 30.673713][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 30.685424][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 30.693547][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 30.700966][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 30.708945][ T304] device veth0_vlan entered promiscuous mode [ 30.718265][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 30.727872][ T304] device veth1_macvtap entered promiscuous mode [ 30.736540][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 30.746035][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/18 12:23:12 executed programs: 0 [ 31.344413][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.351465][ T362] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.358826][ T362] device bridge_slave_0 entered promiscuous mode [ 31.367819][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.375034][ T362] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.382403][ T362] device bridge_slave_1 entered promiscuous mode [ 31.415833][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.422870][ T362] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.430109][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.437148][ T362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.453019][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 31.460457][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.467990][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.479892][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 31.488319][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 31.496511][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.503527][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 31.516007][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 31.524277][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 31.533379][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.540392][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.550392][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 31.558425][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 31.570310][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 31.578484][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 31.590022][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 31.598424][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 31.607489][ T7] device bridge_slave_1 left promiscuous mode [ 31.613838][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.621439][ T7] device bridge_slave_0 left promiscuous mode [ 31.627518][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.635208][ T7] device veth1_macvtap left promiscuous mode [ 31.641495][ T7] device veth0_vlan left promiscuous mode [ 31.725542][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 31.733543][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 31.741511][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 31.748898][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 31.756952][ T362] device veth0_vlan entered promiscuous mode [ 31.766420][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 31.774642][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 31.783755][ T362] device veth1_macvtap entered promiscuous mode [ 31.792364][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 31.799913][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 31.808148][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 31.817357][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 31.825655][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 31.872484][ T367] EXT4-fs (loop2): mounted filesystem without journal. Opts: resgid=0x000000000000ee00,bsddf,grpquota,nojournal_checksum,debug_want_extra_isize=0x0000000000000080,delalloc,nogrpid,noauto_da_alloc,stripe=0x0000000000000002,,errors=continue [ 31.899947][ T367] ================================================================== [ 31.908050][ T367] BUG: KASAN: use-after-free in ext4_read_inline_dir+0x414/0xd00 [ 31.915745][ T367] Read of size 68 at addr ffff888110fac41e by task syz.2.17/367 [ 31.923349][ T367] [ 31.925660][ T367] CPU: 0 PID: 367 Comm: syz.2.17 Not tainted syzkaller #0 [ 31.932738][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 31.942767][ T367] Call Trace: [ 31.946054][ T367] __dump_stack+0x21/0x24 [ 31.950357][ T367] dump_stack_lvl+0x1a7/0x208 [ 31.955010][ T367] ? show_regs_print_info+0x18/0x18 [ 31.960177][ T367] ? thaw_kernel_threads+0x220/0x220 [ 31.965432][ T367] print_address_description+0x7f/0x2c0 [ 31.970948][ T367] ? ext4_read_inline_dir+0x414/0xd00 [ 31.976295][ T367] kasan_report+0x100/0x140 [ 31.980766][ T367] ? ext4_read_inline_dir+0x414/0xd00 [ 31.986132][ T367] kasan_check_range+0x249/0x2a0 [ 31.991124][ T367] ? ext4_read_inline_dir+0x414/0xd00 [ 31.996474][ T367] memcpy+0x2d/0x70 [ 32.000255][ T367] ext4_read_inline_dir+0x414/0xd00 [ 32.005426][ T367] ? kasan_set_track+0x4a/0x70 [ 32.010158][ T367] ? ext4_inlinedir_to_tree+0x1010/0x1010 [ 32.015852][ T367] ? get_futex_key+0x6eb/0xc30 [ 32.020592][ T367] ext4_readdir+0x3a0/0x3a80 [ 32.025156][ T367] ? __kasan_check_read+0x11/0x20 [ 32.030150][ T367] ? memset+0x35/0x40 [ 32.034151][ T367] ? fsnotify+0x19ce/0x1a90 [ 32.038628][ T367] ? ext4_dir_llseek+0x480/0x480 [ 32.043556][ T367] ? slab_free_freelist_hook+0xc5/0x190 [ 32.049075][ T367] ? avc_policy_seqno+0x1b/0x70 [ 32.053900][ T367] ? fsnotify_perm+0x311/0x4a0 [ 32.058634][ T367] ? __kasan_check_write+0x14/0x20 [ 32.063717][ T367] iterate_dir+0x25c/0x560 [ 32.068104][ T367] ? ext4_dir_llseek+0x480/0x480 [ 32.073014][ T367] __se_sys_getdents+0xf2/0x250 [ 32.077834][ T367] ? __x64_sys_getdents+0x90/0x90 [ 32.082831][ T367] ? fillonedir+0x430/0x430 [ 32.087313][ T367] ? debug_smp_processor_id+0x17/0x20 [ 32.092655][ T367] __x64_sys_getdents+0x7b/0x90 [ 32.097474][ T367] do_syscall_64+0x31/0x40 [ 32.101860][ T367] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 32.107723][ T367] RIP: 0033:0x7f85142e2e99 [ 32.112112][ 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 [ 32.131693][ T367] RSP: 002b:00007ffcd4e7aac8 EFLAGS: 00000246 ORIG_RAX: 000000000000004e [ 32.140084][ T367] RAX: ffffffffffffffda RBX: 00007f851456afa0 RCX: 00007f85142e2e99 [ 32.148031][ T367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 32.155981][ T367] RBP: 00007f8514378eaf R08: 0000000000000000 R09: 0000000000000000 [ 32.163928][ T367] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 32.171875][ T367] R13: 00007f851456afac R14: 00007f851456afa0 R15: 00007f851456afa0 [ 32.179821][ T367] [ 32.182125][ T367] Allocated by task 0: [ 32.186162][ T367] (stack is not available) [ 32.190547][ T367] [ 32.192848][ T367] Freed by task 7: [ 32.196546][ T367] kasan_set_track+0x4a/0x70 [ 32.201109][ T367] kasan_set_free_info+0x23/0x40 [ 32.206021][ T367] ____kasan_slab_free+0x125/0x160 [ 32.211112][ T367] __kasan_slab_free+0x11/0x20 [ 32.215852][ T367] slab_free_freelist_hook+0xc5/0x190 [ 32.221197][ T367] kfree+0xc0/0x270 [ 32.224979][ T367] skb_release_data+0x53b/0x690 [ 32.229800][ T367] consume_skb+0xab/0x1f0 [ 32.234108][ T367] netlink_broadcast_filtered+0x11ce/0x12c0 [ 32.239972][ T367] nlmsg_notify+0xe9/0x1a0 [ 32.244365][ T367] rtmsg_ifinfo+0xea/0x130 [ 32.248757][ T367] dev_close_many+0x26e/0x4d0 [ 32.253408][ T367] unregister_netdevice_many+0x477/0x19f0 [ 32.259100][ T367] default_device_exit_batch+0x35e/0x3c0 [ 32.264705][ T367] cleanup_net+0x5fe/0xb80 [ 32.269092][ T367] process_one_work+0x6fd/0xbc0 [ 32.273917][ T367] worker_thread+0xa8e/0x13c0 [ 32.278568][ T367] kthread+0x324/0x3b0 [ 32.282610][ T367] ret_from_fork+0x1f/0x30 [ 32.286995][ T367] [ 32.289301][ T367] The buggy address belongs to the object at ffff888110fac000 [ 32.289301][ T367] which belongs to the cache kmalloc-2k of size 2048 [ 32.303327][ T367] The buggy address is located 1054 bytes inside of [ 32.303327][ T367] 2048-byte region [ffff888110fac000, ffff888110fac800) [ 32.316746][ T367] The buggy address belongs to the page: [ 32.322369][ T367] page:ffffea000443ea00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110fa8 [ 32.332576][ T367] head:ffffea000443ea00 order:3 compound_mapcount:0 compound_pincount:0 [ 32.340872][ T367] flags: 0x4000000000010200(slab|head) [ 32.346331][ T367] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042d80 [ 32.354896][ T367] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 [ 32.363452][ T367] page dumped because: kasan: bad access detected [ 32.369835][ T367] page_owner tracks the page as allocated [ 32.375548][ T367] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 7, ts 31613633437, free_ts 31606726256 [ 32.395133][ T367] prep_new_page+0x176/0x190 [ 32.399787][ T367] get_page_from_freelist+0x225f/0x23f0 [ 32.405305][ T367] __alloc_pages_nodemask+0x29a/0x640 [ 32.410648][ T367] new_slab+0x84/0x3f0 [ 32.414693][ T367] ___slab_alloc+0x2f8/0x4c0 [ 32.419259][ T367] __slab_alloc+0x63/0xa0 [ 32.423563][ T367] __kmalloc_track_caller+0x1e4/0x310 [ 32.428919][ T367] __alloc_skb+0xdc/0x520 [ 32.433222][ T367] alloc_skb_with_frags+0xa3/0x560 [ 32.438321][ T367] sock_alloc_send_pskb+0x87f/0x9a0 [ 32.443500][ T367] sock_alloc_send_skb+0x32/0x40 [ 32.448418][ T367] mld_newpack+0x1b3/0x9e0 [ 32.452808][ T367] add_grec+0xedf/0x1330 [ 32.457025][ T367] mld_ifc_timer_expire+0x797/0xc60 [ 32.462196][ T367] call_timer_fn+0x38/0x290 [ 32.466673][ T367] __run_timers+0x637/0x9a0 [ 32.471145][ T367] page last free stack trace: [ 32.475798][ T367] __free_pages_ok+0x80b/0x830 [ 32.480530][ T367] __free_pages+0xd8/0x390 [ 32.485092][ T367] __free_slab+0xcf/0x190 [ 32.489397][ T367] unfreeze_partials+0x150/0x180 [ 32.494305][ T367] put_cpu_partial+0xc1/0x180 [ 32.498951][ T367] __slab_free+0x2c9/0x3a0 [ 32.503338][ T367] ___cache_free+0x10e/0x130 [ 32.507907][ T367] qlink_free+0x50/0x90 [ 32.512035][ T367] qlist_free_all+0x5f/0xb0 [ 32.516511][ T367] kasan_quarantine_reduce+0x14a/0x160 [ 32.521941][ T367] __kasan_slab_alloc+0x2f/0xe0 [ 32.526763][ T367] slab_post_alloc_hook+0x5d/0x2f0 [ 32.531852][ T367] kmem_cache_alloc_trace+0x155/0x2e0 [ 32.537194][ T367] syslog_print+0x127/0x720 [ 32.541667][ T367] do_syslog+0x94c/0x9a0 [ 32.545882][ T367] __x64_sys_syslog+0x7c/0x90 [ 32.550526][ T367] [ 32.552825][ T367] Memory state around the buggy address: [ 32.558429][ T367] ffff888110fac300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.566460][ T367] ffff888110fac380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.574496][ T367] >ffff888110fac400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.582526][ T367] ^ [ 32.587346][ T367] ffff888110fac480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.595380][ T367] ffff888110fac500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.603410][ T367] ================================================================== [ 32.611442][ T367] Disabling lock debugging due to kernel taint