Warning: Permanently added '10.128.0.49' (ED25519) to the list of known hosts. 2026/07/14 23:27:09 parsed 1 programs 2026/07/14 23:27:09 serving rpc on tcp://40605 [ 23.354083][ T28] audit: type=1400 audit(1784071629.808:64): avc: denied { node_bind } for pid=294 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 23.377610][ T28] audit: type=1400 audit(1784071629.808:65): avc: denied { module_request } for pid=294 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 [ 24.205217][ T28] audit: type=1400 audit(1784071630.658:66): avc: denied { mounton } for pid=300 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 [ 24.206346][ T300] cgroup: Unknown subsys name 'net' [ 24.229053][ T28] audit: type=1400 audit(1784071630.658:67): avc: denied { mount } for pid=300 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 [ 24.259651][ T28] audit: type=1400 audit(1784071630.688:68): avc: denied { unmount } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.260124][ T300] cgroup: Unknown subsys name 'devices' [ 24.380380][ T300] cgroup: Unknown subsys name 'hugetlb' [ 24.386033][ T300] cgroup: Unknown subsys name 'rlimit' [ 24.494631][ T28] audit: type=1400 audit(1784071630.948:69): avc: denied { setattr } for pid=300 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 24.518634][ T28] audit: type=1400 audit(1784071630.948:70): avc: denied { create } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.539865][ T28] audit: type=1400 audit(1784071630.948:71): avc: denied { write } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.560780][ T28] audit: type=1400 audit(1784071630.948:72): avc: denied { read } for pid=300 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 [ 24.581915][ T28] audit: type=1400 audit(1784071630.948:73): avc: denied { mounton } for pid=300 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 [ 24.591508][ T304] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 24.639081][ T300] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.363812][ T306] request_module fs-gadgetfs succeeded, but still no fs? [ 25.550029][ T315] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.557213][ T315] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.564847][ T315] device bridge_slave_0 entered promiscuous mode [ 25.571917][ T315] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.579156][ T315] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.586574][ T315] device bridge_slave_1 entered promiscuous mode [ 25.626463][ T315] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.633831][ T315] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.641308][ T315] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.648366][ T315] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.669614][ T316] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.676902][ T316] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.684518][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 25.691999][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.702579][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 25.711339][ T316] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.718474][ T316] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.727642][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 25.736160][ T316] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.743336][ T316] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.757299][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.767021][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.783337][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.794868][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.803612][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.811671][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.820910][ T315] device veth0_vlan entered promiscuous mode [ 25.831772][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.841443][ T315] device veth1_macvtap entered promiscuous mode [ 25.851432][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.862738][ T316] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.919967][ T315] syz-executor (315) used greatest stack depth: 21792 bytes left [ 26.529917][ T316] device bridge_slave_1 left promiscuous mode [ 26.538437][ T316] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.553150][ T316] device bridge_slave_0 left promiscuous mode [ 26.559502][ T316] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.568670][ T316] device veth1_macvtap left promiscuous mode [ 26.574822][ T316] device veth0_vlan left promiscuous mode 2026/07/14 23:27:13 executed programs: 0 [ 26.686475][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.693636][ T370] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.701461][ T370] device bridge_slave_0 entered promiscuous mode [ 26.708712][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.715953][ T370] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.723445][ T370] device bridge_slave_1 entered promiscuous mode [ 26.763374][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.770469][ T370] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.777747][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.785036][ T370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.804466][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.812691][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.820555][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.831022][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.839567][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.846646][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.855577][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.865542][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.873595][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.886250][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.896261][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.915150][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.926657][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.935608][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.943608][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.952511][ T370] device veth0_vlan entered promiscuous mode [ 26.965262][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.974513][ T370] device veth1_macvtap entered promiscuous mode [ 26.984089][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.994669][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.023185][ T375] loop2: detected capacity change from 0 to 512 [ 27.031177][ T375] EXT4-fs: Ignoring removed mblk_io_submit option [ 27.037835][ T375] EXT4-fs: Ignoring removed mblk_io_submit option [ 27.044563][ T375] EXT4-fs: Ignoring removed oldalloc option [ 27.051079][ T375] EXT4-fs: Ignoring removed mblk_io_submit option [ 27.057954][ T375] EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support! [ 27.071568][ T375] EXT4-fs (loop2): encrypted files will use data=ordered instead of data journaling mode [ 27.083666][ T375] EXT4-fs (loop2): 1 truncate cleaned up [ 27.090117][ T375] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none. [ 27.102474][ T375] ================================================================== [ 27.110866][ T375] BUG: KASAN: use-after-free in ext4_xattr_list_entries+0x2d8/0x380 [ 27.119809][ T375] Read of size 4 at addr ffff88812a3bf018 by task syz.2.17/375 [ 27.128206][ T375] [ 27.130653][ T375] CPU: 1 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0 [ 27.137941][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 27.148378][ T375] Call Trace: [ 27.151848][ T375] [ 27.154993][ T375] __dump_stack+0x21/0x24 [ 27.159510][ T375] dump_stack_lvl+0x110/0x170 [ 27.164775][ T375] ? __cfi_dump_stack_lvl+0x8/0x8 [ 27.170281][ T375] ? __cfi__printk+0x8/0x8 [ 27.174929][ T375] ? __ext4_get_inode_loc+0x5a2/0xd60 [ 27.180657][ T375] ? ext4_xattr_list_entries+0x2d8/0x380 [ 27.186412][ T375] print_address_description+0x71/0x200 [ 27.192185][ T375] print_report+0x4a/0x60 [ 27.197244][ T375] kasan_report+0x122/0x150 [ 27.201969][ T375] ? ext4_xattr_list_entries+0x2d8/0x380 [ 27.208093][ T375] __asan_report_load4_noabort+0x14/0x20 [ 27.213751][ T375] ext4_xattr_list_entries+0x2d8/0x380 [ 27.219227][ T375] ext4_listxattr+0x20e/0x600 [ 27.223964][ T375] ? __kmalloc_node+0xb2/0x1e0 [ 27.228743][ T375] ? __cfi_ext4_listxattr+0x10/0x10 [ 27.234129][ T375] ? security_inode_listxattr+0xda/0x120 [ 27.239798][ T375] ? __cfi_ext4_listxattr+0x10/0x10 [ 27.245198][ T375] listxattr+0x2a8/0x310 [ 27.249439][ T375] path_listxattr+0xe1/0x1b0 [ 27.254042][ T375] ? path_getxattr+0x4d0/0x4d0 [ 27.259074][ T375] ? do_user_addr_fault+0x9a5/0x1030 [ 27.264501][ T375] ? debug_smp_processor_id+0x17/0x20 [ 27.270038][ T375] __x64_sys_listxattr+0x80/0x90 [ 27.275275][ T375] x64_sys_call+0xd7/0x9a0 [ 27.280325][ T375] do_syscall_64+0x4c/0xa0 [ 27.285051][ T375] ? clear_bhb_loop+0x30/0x80 [ 27.289928][ T375] ? clear_bhb_loop+0x30/0x80 [ 27.295511][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 27.302934][ T375] RIP: 0033:0x7f8194f9de59 [ 27.308084][ T375] 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 [ 27.329468][ T375] RSP: 002b:00007ffe1b835f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2 [ 27.338673][ T375] RAX: ffffffffffffffda RBX: 00007f8195225fa0 RCX: 00007f8194f9de59 [ 27.346918][ T375] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000200000000140 [ 27.355542][ T375] RBP: 00007f8195033e6f R08: 0000000000000000 R09: 0000000000000000 [ 27.363717][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 27.371970][ T375] R13: 00007f8195225fac R14: 00007f8195225fa0 R15: 00007f8195225fa0 [ 27.380049][ T375] [ 27.383176][ T375] [ 27.385569][ T375] The buggy address belongs to the physical page: [ 27.392615][ T375] page:ffffea0004a8efc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x12a3bf [ 27.402969][ T375] flags: 0x4000000000000000(zone=1) [ 27.408327][ T375] raw: 4000000000000000 ffffea0004a8eec8 ffff8881f6e3c868 0000000000000000 [ 27.417289][ T375] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 27.426207][ T375] page dumped because: kasan: bad access detected [ 27.432715][ T375] page_owner tracks the page as freed [ 27.438359][ T375] page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 308, tgid 308 (udevd), ts 27106536034, free_ts 27107195823 [ 27.455737][ T375] post_alloc_hook+0x1f5/0x210 [ 27.462368][ T375] prep_new_page+0x1c/0x110 [ 27.467076][ T375] get_page_from_freelist+0x2ca9/0x2d20 [ 27.472657][ T375] __alloc_pages+0x1fa/0x610 [ 27.477336][ T375] __folio_alloc+0x12/0x40 [ 27.482095][ T375] shmem_alloc_and_acct_folio+0x6dd/0x8c0 [ 27.487832][ T375] shmem_get_folio_gfp+0xd6d/0x20f0 [ 27.493102][ T375] shmem_write_begin+0xea/0x2c0 [ 27.498335][ T375] generic_perform_write+0x32d/0x740 [ 27.504093][ T375] __generic_file_write_iter+0x17a/0x230 [ 27.509807][ T375] generic_file_write_iter+0xae/0x310 [ 27.517106][ T375] vfs_write+0x5ef/0xd00 [ 27.521561][ T375] ksys_write+0x14a/0x260 [ 27.526009][ T375] __x64_sys_write+0x7b/0x90 [ 27.530958][ T375] x64_sys_call+0x27b/0x9a0 [ 27.535482][ T375] do_syscall_64+0x4c/0xa0 [ 27.539977][ T375] page last free stack trace: [ 27.544745][ T375] free_unref_page_prepare+0x80c/0x820 [ 27.550219][ T375] free_unref_page_list+0x117/0x8d0 [ 27.555437][ T375] release_pages+0xc7e/0xce0 [ 27.560198][ T375] __pagevec_release+0x71/0xe0 [ 27.565056][ T375] shmem_undo_range+0x564/0x14e0 [ 27.570730][ T375] shmem_evict_inode+0x21f/0x9c0 [ 27.575945][ T375] evict+0x4c4/0x8c0 [ 27.579947][ T375] iput+0x633/0x690 [ 27.583910][ T375] dentry_unlink_inode+0x346/0x3f0 [ 27.589209][ T375] __dentry_kill+0x46c/0x680 [ 27.593913][ T375] dentry_kill+0xc0/0x2a0 [ 27.598338][ T375] dput+0x42/0x80 [ 27.602004][ T375] do_renameat2+0xa33/0xfc0 [ 27.606633][ T375] __x64_sys_rename+0x86/0x90 [ 27.611365][ T375] x64_sys_call+0x300/0x9a0 [ 27.616069][ T375] do_syscall_64+0x4c/0xa0 [ 27.620780][ T375] [ 27.623197][ T375] Memory state around the buggy address: [ 27.628921][ T375] ffff88812a3bef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.637268][ T375] ffff88812a3bef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.645638][ T375] >ffff88812a3bf000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.653908][ T375] ^ [ 27.659055][ T375] ffff88812a3bf080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.667483][ T375] ffff88812a3bf100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 27.676282][ T375] ================================================================== [ 27.686458][ T375] Disabling lock debugging due to kernel taint [ 27.700091][ T370] EXT4-fs (loop2): unmounting filesystem.