syzkaller syzkaller login: [ 20.638437][ T28] kauditd_printk_skb: 31 callbacks suppressed [ 20.638455][ T28] audit: type=1400 audit(1769226820.661:59): 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 [ 20.643264][ T28] audit: type=1400 audit(1769226820.661:60): 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 [ 20.647518][ T28] audit: type=1400 audit(1769226820.671:61): avc: denied { write } for pid=225 comm="sh" path="pipe:[14635]" dev="pipefs" ino=14635 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 20.651112][ T28] audit: type=1400 audit(1769226820.671:62): 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 [ 20.654175][ T28] audit: type=1400 audit(1769226820.671:63): 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 Warning: Permanently added '10.128.1.250' (ED25519) to the list of known hosts. 2026/01/24 03:53:50 parsed 1 programs [ 30.711102][ T28] audit: type=1400 audit(1769226830.731:64): avc: denied { node_bind } for pid=283 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 30.731947][ T28] audit: type=1400 audit(1769226830.731:65): avc: denied { module_request } for pid=283 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 [ 31.837273][ T28] audit: type=1400 audit(1769226831.861:66): avc: denied { mounton } for pid=290 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 31.840889][ T290] cgroup: Unknown subsys name 'net' [ 31.860413][ T28] audit: type=1400 audit(1769226831.861:67): avc: denied { mount } for pid=290 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 [ 31.887786][ T28] audit: type=1400 audit(1769226831.891:68): avc: denied { unmount } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 31.888248][ T290] cgroup: Unknown subsys name 'devices' [ 32.028216][ T290] cgroup: Unknown subsys name 'hugetlb' [ 32.033841][ T290] cgroup: Unknown subsys name 'rlimit' [ 32.154783][ T28] audit: type=1400 audit(1769226832.171:69): avc: denied { setattr } for pid=290 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 [ 32.178110][ T28] audit: type=1400 audit(1769226832.171:70): avc: denied { create } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 32.198607][ T28] audit: type=1400 audit(1769226832.171:71): avc: denied { write } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 32.218990][ T28] audit: type=1400 audit(1769226832.171:72): avc: denied { read } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 32.239229][ T28] audit: type=1400 audit(1769226832.171:73): avc: denied { mounton } for pid=290 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 [ 32.247981][ T293] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 32.337320][ T290] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 33.105084][ T296] request_module fs-gadgetfs succeeded, but still no fs? [ 33.239190][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.247409][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.255518][ T305] device bridge_slave_0 entered promiscuous mode [ 33.263464][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.270529][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.278063][ T305] device bridge_slave_1 entered promiscuous mode [ 33.327327][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.334385][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.341734][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.348831][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.370382][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.378181][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.385451][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.397476][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 33.405719][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.412798][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.421811][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 33.430297][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.437471][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.452054][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 33.461837][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 33.477382][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 33.490184][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 33.498521][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 33.506170][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 33.514392][ T305] device veth0_vlan entered promiscuous mode [ 33.525169][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 33.535371][ T305] device veth1_macvtap entered promiscuous mode [ 33.545535][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 33.557204][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 33.604018][ T305] syz-executor (305) used greatest stack depth: 22176 bytes left [ 34.447258][ T8] device bridge_slave_1 left promiscuous mode [ 34.453465][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.461439][ T8] device bridge_slave_0 left promiscuous mode [ 34.467773][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.476320][ T8] device veth1_macvtap left promiscuous mode [ 34.482453][ T8] device veth0_vlan left promiscuous mode 2026/01/24 03:53:54 executed programs: 0 [ 34.675944][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.683365][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.690945][ T365] device bridge_slave_0 entered promiscuous mode [ 34.698189][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.705265][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.713039][ T365] device bridge_slave_1 entered promiscuous mode [ 34.762087][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.769165][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.776503][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.783547][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.804322][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.812836][ T349] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.820225][ T349] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.829867][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 34.838569][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.845628][ T349] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.856165][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 34.864452][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.871551][ T349] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.884441][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 34.894631][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 34.908861][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 34.921731][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 34.930129][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 34.937859][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 34.946434][ T365] device veth0_vlan entered promiscuous mode [ 34.956477][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 34.966359][ T365] device veth1_macvtap entered promiscuous mode [ 34.977675][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 34.988120][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 35.064983][ T377] general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN [ 35.076740][ T377] KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] [ 35.085159][ T377] CPU: 1 PID: 377 Comm: syz.2.17 Not tainted syzkaller #0 [ 35.092271][ T377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 35.102424][ T377] RIP: 0010:do_rmdir+0x1fa/0x6b0 [ 35.107407][ T377] Code: ff ff 49 89 c6 48 3d 01 f0 ff ff 72 0d e8 7e bd ae ff 45 89 f7 e9 94 00 00 00 4c 89 74 24 20 4d 8d 7e 30 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 c7 e9 f3 ff 49 83 3f 00 4c 8b 34 [ 35.127043][ T377] RSP: 0018:ffffc900007b7e20 EFLAGS: 00010202 [ 35.133131][ T377] RAX: 0000000000000007 RBX: 1ffff920000f6fcc RCX: ffff888114100000 [ 35.141101][ T377] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888114100000 [ 35.149079][ T377] RBP: ffffc900007b7ee8 R08: ffffc900007b7d07 R09: 1ffff920000f6fa0 [ 35.157058][ T377] R10: dffffc0000000000 R11: fffff520000f6fa1 R12: 00000000ffffff9c [ 35.165035][ T377] R13: dffffc0000000000 R14: 0000000000000009 R15: 0000000000000039 [ 35.173002][ T377] FS: 00007fc2a0a166c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 35.181930][ T377] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.188624][ T377] CR2: 00007fc2a09f4ff8 CR3: 0000000111c60000 CR4: 00000000003506a0 [ 35.196715][ T377] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.204688][ T377] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.212659][ T377] Call Trace: [ 35.216014][ T377] [ 35.218974][ T377] ? __cfi_do_rmdir+0x10/0x10 [ 35.223675][ T377] ? getname_flags+0x206/0x500 [ 35.228445][ T377] __x64_sys_rmdir+0x49/0x50 [ 35.233060][ T377] x64_sys_call+0x68e/0x9a0 [ 35.237594][ T377] do_syscall_64+0x4c/0xa0 [ 35.242028][ T377] ? clear_bhb_loop+0x30/0x80 [ 35.246715][ T377] ? clear_bhb_loop+0x30/0x80 [ 35.251413][ T377] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 35.257340][ T377] RIP: 0033:0x7fc29fb9acb9 [ 35.261763][ T377] 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 [ 35.281385][ T377] RSP: 002b:00007fc2a0a16028 EFLAGS: 00000246 ORIG_RAX: 0000000000000054 [ 35.290084][ T377] RAX: ffffffffffffffda RBX: 00007fc29fe15fa0 RCX: 00007fc29fb9acb9 [ 35.298070][ T377] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000040 [ 35.306083][ T377] RBP: 00007fc29fc08bf7 R08: 0000000000000000 R09: 0000000000000000 [ 35.314070][ T377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 35.322071][ T377] R13: 00007fc29fe16038 R14: 00007fc29fe15fa0 R15: 00007fff2023b178 [ 35.330071][ T377] [ 35.333097][ T377] Modules linked in: [ 35.339222][ T377] ---[ end trace 0000000000000000 ]--- [ 35.344714][ T377] RIP: 0010:do_rmdir+0x1fa/0x6b0 [ 35.349730][ T377] Code: ff ff 49 89 c6 48 3d 01 f0 ff ff 72 0d e8 7e bd ae ff 45 89 f7 e9 94 00 00 00 4c 89 74 24 20 4d 8d 7e 30 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 c7 e9 f3 ff 49 83 3f 00 4c 8b 34 [ 35.369507][ T377] RSP: 0018:ffffc900007b7e20 EFLAGS: 00010202 [ 35.375641][ T377] RAX: 0000000000000007 RBX: 1ffff920000f6fcc RCX: ffff888114100000 [ 35.383717][ T377] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888114100000 [ 35.392161][ T377] RBP: ffffc900007b7ee8 R08: ffffc900007b7d07 R09: 1ffff920000f6fa0 [ 35.400386][ T377] R10: dffffc0000000000 R11: fffff520000f6fa1 R12: 00000000ffffff9c [ 35.408489][ T377] R13: dffffc0000000000 R14: 0000000000000009 R15: 0000000000000039 [ 35.416560][ T377] FS: 00007fc2a0a166c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 35.425507][ T377] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.432158][ T377] CR2: 00007fc29fbe8400 CR3: 0000000111c60000 CR4: 00000000003506b0 [ 35.440281][ T377] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.448351][ T377] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.456404][ T377] Kernel panic - not syncing: Fatal exception [ 35.462598][ T377] Kernel Offset: disabled [ 35.466980][ T377] Rebooting in 86400 seconds..