syzkaller syzkaller login: [ 16.008218][ T28] kauditd_printk_skb: 25 callbacks suppressed [ 16.008234][ T28] audit: type=1400 audit(1784324299.882:59): avc: denied { transition } for pid=225 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.012722][ T28] audit: type=1400 audit(1784324299.882:60): avc: denied { noatsecure } for pid=225 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.016354][ T28] audit: type=1400 audit(1784324299.882:61): avc: denied { write } for pid=225 comm="sh" path="pipe:[12701]" dev="pipefs" ino=12701 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 16.020069][ T28] audit: type=1400 audit(1784324299.882:62): avc: denied { rlimitinh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 16.022994][ T28] audit: type=1400 audit(1784324299.882:63): avc: denied { siginh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 17.809396][ T233] scp (233) used greatest stack depth: 22064 bytes left Warning: Permanently added '10.128.0.174' (ED25519) to the list of known hosts. 2026/07/17 21:38:29 parsed 1 programs 2026/07/17 21:38:29 serving rpc on tcp://34547 [ 25.501931][ T28] audit: type=1400 audit(1784324309.372:64): avc: denied { node_bind } for pid=295 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 25.523238][ T28] audit: type=1400 audit(1784324309.372:65): avc: denied { module_request } for pid=295 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 [ 26.650629][ T28] audit: type=1400 audit(1784324310.522:66): avc: denied { mounton } for pid=301 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 [ 26.653833][ T301] cgroup: Unknown subsys name 'net' [ 26.673282][ T28] audit: type=1400 audit(1784324310.522:67): avc: denied { mount } for pid=301 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 [ 26.700640][ T28] audit: type=1400 audit(1784324310.562:68): avc: denied { unmount } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 26.701061][ T301] cgroup: Unknown subsys name 'devices' [ 26.848854][ T301] cgroup: Unknown subsys name 'hugetlb' [ 26.854914][ T301] cgroup: Unknown subsys name 'rlimit' [ 26.966151][ T28] audit: type=1400 audit(1784324310.832:69): avc: denied { setattr } for pid=301 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 [ 26.989339][ T28] audit: type=1400 audit(1784324310.832:70): avc: denied { create } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.009729][ T28] audit: type=1400 audit(1784324310.832:71): avc: denied { write } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.029993][ T28] audit: type=1400 audit(1784324310.832:72): avc: denied { read } for pid=301 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 [ 27.050312][ T28] audit: type=1400 audit(1784324310.832:73): avc: denied { mounton } for pid=301 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 [ 27.051775][ T306] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 27.114651][ T301] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.803338][ T310] request_module fs-gadgetfs succeeded, but still no fs? [ 27.922407][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.930141][ T319] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.937632][ T319] device bridge_slave_0 entered promiscuous mode [ 27.945311][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.952435][ T319] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.959851][ T319] device bridge_slave_1 entered promiscuous mode [ 28.005570][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.012680][ T319] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.020045][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.027107][ T319] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.048454][ T320] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.055713][ T320] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.063139][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 28.070791][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.081136][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.089413][ T320] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.096445][ T320] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.105256][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.113544][ T320] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.120642][ T320] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.133120][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.143343][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.158016][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.169972][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.178291][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.185736][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.194920][ T319] device veth0_vlan entered promiscuous mode [ 28.205318][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.214581][ T319] device veth1_macvtap entered promiscuous mode [ 28.224001][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.234733][ T320] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.271128][ T319] syz-executor (319) used greatest stack depth: 21248 bytes left [ 28.997627][ T43] device bridge_slave_1 left promiscuous mode [ 29.003942][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.011804][ T43] device bridge_slave_0 left promiscuous mode [ 29.018081][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.026267][ T43] device veth1_macvtap left promiscuous mode [ 29.032697][ T43] device veth0_vlan left promiscuous mode 2026/07/17 21:38:33 executed programs: 0 [ 29.174322][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.181439][ T370] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.189428][ T370] device bridge_slave_0 entered promiscuous mode [ 29.196371][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.203501][ T370] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.210978][ T370] device bridge_slave_1 entered promiscuous mode [ 29.257020][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.264077][ T370] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.271401][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.278473][ T370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.299550][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.307411][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.314651][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.323961][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.332354][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.339468][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.348487][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.356949][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.363986][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.376806][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.386423][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.404386][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.416978][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.425123][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.432872][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.441307][ T370] device veth0_vlan entered promiscuous mode [ 29.451997][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.461704][ T370] device veth1_macvtap entered promiscuous mode [ 29.472133][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.483235][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 29.558477][ T378] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN [ 29.570224][ T378] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 29.578659][ T378] CPU: 1 PID: 378 Comm: syz.2.17 Not tainted syzkaller #0 [ 29.585764][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 29.595821][ T378] RIP: 0010:fuse_atomic_open+0x174/0x3c0 [ 29.601495][ T378] Code: 8b 6d c4 44 89 ee 83 e6 40 31 ff e8 c6 d9 65 ff 44 89 e8 83 e0 40 75 07 e8 99 d5 65 ff eb 26 4d 8d 6e 30 4c 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ef e8 2d 60 ab ff 49 83 7d 00 00 74 21 [ 29.621098][ T378] RSP: 0018:ffffc90000997918 EFLAGS: 00010206 [ 29.627176][ T378] RAX: 0000000000000006 RBX: ffff8881159ba000 RCX: 0000000000000000 [ 29.635143][ T378] RDX: ffff8881156c9440 RSI: 0000000000000040 RDI: 0000000000000000 [ 29.643113][ T378] RBP: ffffc90000997970 R08: ffff8881156c9440 R09: fffff52000132e98 [ 29.651112][ T378] R10: 00000000fffffffe R11: 0000000000000000 R12: dffffc0000000000 [ 29.659175][ T378] R13: 0000000000000031 R14: 0000000000000001 R15: ffff888123f0c000 [ 29.667151][ T378] FS: 00007ff4864226c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.676080][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.682665][ T378] CR2: 00007ff486421ff8 CR3: 000000012d9f1000 CR4: 00000000003506a0 [ 29.690639][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.698609][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.706586][ T378] Call Trace: [ 29.709886][ T378] [ 29.712828][ T378] ? selinux_inode_create+0x22/0x30 [ 29.718041][ T378] ? __cfi_fuse_atomic_open+0x10/0x10 [ 29.723453][ T378] path_openat+0x125c/0x2f30 [ 29.728056][ T378] ? do_filp_open+0x420/0x420 [ 29.732751][ T378] do_filp_open+0x1ee/0x420 [ 29.737258][ T378] ? __cfi_do_filp_open+0x10/0x10 [ 29.742292][ T378] ? alloc_fd+0x4c1/0x570 [ 29.746666][ T378] do_sys_openat2+0x15e/0x820 [ 29.751354][ T378] ? __se_sys_futex+0x136/0x310 [ 29.756206][ T378] ? do_sys_open+0xe0/0xe0 [ 29.760624][ T378] ? __x64_sys_futex+0x100/0x100 [ 29.765588][ T378] ? ksys_write+0x1fa/0x260 [ 29.770109][ T378] ? __kasan_check_write+0x14/0x20 [ 29.775240][ T378] __x64_sys_creat+0x8e/0xb0 [ 29.779870][ T378] x64_sys_call+0x116/0x9a0 [ 29.784402][ T378] do_syscall_64+0x4c/0xa0 [ 29.788826][ T378] ? clear_bhb_loop+0x30/0x80 [ 29.793513][ T378] ? clear_bhb_loop+0x30/0x80 [ 29.798195][ T378] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.804124][ T378] RIP: 0033:0x7ff48559de99 [ 29.808561][ T378] 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 [ 29.828186][ T378] RSP: 002b:00007ff486422028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 29.836636][ T378] RAX: ffffffffffffffda RBX: 00007ff485826090 RCX: 00007ff48559de99 [ 29.844725][ T378] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000180 [ 29.852781][ T378] RBP: 00007ff485633eaf R08: 0000000000000000 R09: 0000000000000000 [ 29.860780][ T378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 29.868784][ T378] R13: 00007ff485826128 R14: 00007ff485826090 R15: 00007fffd07c3be8 [ 29.876789][ T378] [ 29.879831][ T378] Modules linked in: [ 29.886830][ T378] ---[ end trace 0000000000000000 ]--- [ 29.892382][ T378] RIP: 0010:fuse_atomic_open+0x174/0x3c0 [ 29.898194][ T378] Code: 8b 6d c4 44 89 ee 83 e6 40 31 ff e8 c6 d9 65 ff 44 89 e8 83 e0 40 75 07 e8 99 d5 65 ff eb 26 4d 8d 6e 30 4c 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ef e8 2d 60 ab ff 49 83 7d 00 00 74 21 [ 29.918280][ T378] RSP: 0018:ffffc90000997918 EFLAGS: 00010206 [ 29.924518][ T378] RAX: 0000000000000006 RBX: ffff8881159ba000 RCX: 0000000000000000 [ 29.938672][ T378] RDX: ffff8881156c9440 RSI: 0000000000000040 RDI: 0000000000000000 [ 29.946892][ T378] RBP: ffffc90000997970 R08: ffff8881156c9440 R09: fffff52000132e98 [ 29.954899][ T378] R10: 00000000fffffffe R11: 0000000000000000 R12: dffffc0000000000 [ 29.963336][ T378] R13: 0000000000000031 R14: 0000000000000001 R15: ffff888123f0c000 [ 29.971491][ T378] FS: 00007ff4864226c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.980810][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.988870][ T378] CR2: 00007ff486421ff8 CR3: 000000012d9f1000 CR4: 00000000003506a0 [ 29.997073][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.005190][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.013403][ T378] Kernel panic - not syncing: Fatal exception [ 30.019607][ T378] Kernel Offset: disabled [ 30.023933][ T378] Rebooting in 86400 seconds..