syzkaller syzkaller login: [ 12.708285][ T30] kauditd_printk_skb: 48 callbacks suppressed [ 12.708298][ T30] audit: type=1400 audit(1761768721.094:59): avc: denied { transition } for pid=223 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 [ 12.713166][ T30] audit: type=1400 audit(1761768721.094:60): avc: denied { noatsecure } for pid=223 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.716171][ T30] audit: type=1400 audit(1761768721.104:61): avc: denied { write } for pid=223 comm="sh" path="pipe:[14394]" dev="pipefs" ino=14394 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 12.719899][ T30] audit: type=1400 audit(1761768721.104:62): avc: denied { rlimitinh } for pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.722834][ T30] audit: type=1400 audit(1761768721.104:63): avc: denied { siginh } for pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.224' (ED25519) to the list of known hosts. 2025/10/29 20:12:28 parsed 1 programs [ 39.847050][ T30] audit: type=1400 audit(1761768748.234:64): avc: denied { node_bind } for pid=281 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 39.850680][ T30] audit: type=1400 audit(1761768748.234:65): avc: denied { module_request } for pid=281 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 [ 40.489190][ T30] audit: type=1400 audit(1761768748.874:66): 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 [ 40.490270][ T290] cgroup: Unknown subsys name 'net' [ 40.511856][ T30] audit: type=1400 audit(1761768748.874:67): 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 [ 40.539140][ T30] audit: type=1400 audit(1761768748.904:68): 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 [ 40.539329][ T290] cgroup: Unknown subsys name 'devices' [ 40.682462][ T290] cgroup: Unknown subsys name 'hugetlb' [ 40.688062][ T290] cgroup: Unknown subsys name 'rlimit' [ 40.860415][ T30] audit: type=1400 audit(1761768749.244:69): avc: denied { setattr } for pid=290 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 [ 40.883875][ T30] audit: type=1400 audit(1761768749.254:70): 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 [ 40.904482][ T30] audit: type=1400 audit(1761768749.254:71): 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 [ 40.910859][ T292] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 40.924787][ T30] audit: type=1400 audit(1761768749.254:72): 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 [ 40.954031][ T30] audit: type=1400 audit(1761768749.254:73): 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 [ 40.984767][ T290] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 41.390392][ T294] request_module fs-gadgetfs succeeded, but still no fs? [ 41.757259][ T324] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.764330][ T324] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.771964][ T324] device bridge_slave_0 entered promiscuous mode [ 41.778939][ T324] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.786265][ T324] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.793650][ T324] device bridge_slave_1 entered promiscuous mode [ 41.838242][ T324] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.845309][ T324] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.852811][ T324] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.859836][ T324] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.875550][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.883314][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.891264][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.900389][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.908716][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.915780][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.926462][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.934690][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.941728][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.952200][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 41.961688][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 41.974258][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.984757][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.992820][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 42.000220][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 42.008273][ T324] device veth0_vlan entered promiscuous mode [ 42.017627][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 42.026644][ T324] device veth1_macvtap entered promiscuous mode [ 42.035255][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 42.044847][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 42.071651][ T324] syz-executor (324) used greatest stack depth: 21120 bytes left 2025/10/29 20:12:30 executed programs: 0 [ 42.528139][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.536961][ T362] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.544422][ T362] device bridge_slave_0 entered promiscuous mode [ 42.551264][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.558280][ T362] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.565687][ T362] device bridge_slave_1 entered promiscuous mode [ 42.613650][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 42.621220][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.629652][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 42.638191][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.646333][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.653378][ T335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.661069][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 42.669564][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 42.677969][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.686112][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.693144][ T335] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.703904][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 42.711994][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.721105][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 42.729172][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.741699][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 42.750043][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 42.761594][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 42.769538][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 42.777651][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 42.785432][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 42.794103][ T362] device veth0_vlan entered promiscuous mode [ 42.810455][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 42.819039][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 42.828702][ T362] device veth1_macvtap entered promiscuous mode [ 42.837923][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 42.846223][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 42.854929][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 42.868847][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 42.877210][ T335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 43.009037][ T374] general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN [ 43.020865][ T374] KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f] [ 43.029379][ T374] CPU: 0 PID: 374 Comm: syz.2.17 Not tainted syzkaller #0 [ 43.036495][ T374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 43.046543][ T374] RIP: 0010:vfs_rename+0x1b1/0x10d0 [ 43.051741][ T374] Code: c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 97 11 f5 ff 48 8b 03 48 89 44 24 48 48 8b 44 24 30 4c 8d 70 30 4d 89 f7 49 c1 ef 03 <43> 80 3c 27 00 74 08 4c 89 f7 e8 70 11 f5 ff 49 8b 16 4c 89 6c 24 [ 43.071333][ T374] RSP: 0018:ffffc900040afb80 EFLAGS: 00010206 [ 43.077388][ T374] RAX: 0000000000000018 RBX: ffff88810cc459c0 RCX: ffff8881101862c0 [ 43.085342][ T374] RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000000200000 [ 43.093294][ T374] RBP: ffffc900040afcf0 R08: dffffc0000000000 R09: ffffed10219858b6 [ 43.101350][ T374] R10: ffffed10219858b6 R11: 1ffff110219858b5 R12: dffffc0000000000 [ 43.109314][ T374] R13: ffff888123393600 R14: 0000000000000048 R15: 0000000000000009 [ 43.117269][ T374] FS: 00007f299375c6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 43.126184][ T374] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.133152][ T374] CR2: 000020000000b000 CR3: 000000012cb98000 CR4: 00000000003506b0 [ 43.141150][ T374] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.149116][ T374] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.157071][ T374] Call Trace: [ 43.160333][ T374] [ 43.163250][ T374] ? dentry_free+0xbd/0x150 [ 43.167773][ T374] ? __ia32_sys_link+0x90/0x90 [ 43.172536][ T374] ? fast_dput+0x83/0x290 [ 43.176852][ T374] ? dput+0x5b/0x90 [ 43.180829][ T374] ? lookup_one_qstr_excl+0x1de/0x250 [ 43.186199][ T374] do_renameat2+0x7ed/0xf60 [ 43.190689][ T374] ? fsnotify_move+0x450/0x450 [ 43.196060][ T374] ? getname_flags+0x206/0x500 [ 43.200931][ T374] __x64_sys_rename+0x86/0x90 [ 43.205737][ T374] x64_sys_call+0x680/0x9a0 [ 43.210311][ T374] do_syscall_64+0x4c/0xa0 [ 43.214729][ T374] ? clear_bhb_loop+0x50/0xa0 [ 43.219395][ T374] ? clear_bhb_loop+0x50/0xa0 [ 43.224075][ T374] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 43.229954][ T374] RIP: 0033:0x7f299390cfc9 [ 43.234710][ T374] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 43.254309][ T374] RSP: 002b:00007f299375c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 43.262838][ T374] RAX: ffffffffffffffda RBX: 00007f2993b64090 RCX: 00007f299390cfc9 [ 43.270912][ T374] RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000200000000100 [ 43.278884][ T374] RBP: 00007f299398ff91 R08: 0000000000000000 R09: 0000000000000000 [ 43.286849][ T374] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.294932][ T374] R13: 00007f2993b64128 R14: 00007f2993b64090 R15: 00007ffe27804fd8 [ 43.303014][ T374] [ 43.306024][ T374] Modules linked in: [ 43.310505][ T374] ---[ end trace dd5d794f8da4b07b ]--- [ 43.316558][ T374] RIP: 0010:vfs_rename+0x1b1/0x10d0 [ 43.321847][ T374] Code: c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 97 11 f5 ff 48 8b 03 48 89 44 24 48 48 8b 44 24 30 4c 8d 70 30 4d 89 f7 49 c1 ef 03 <43> 80 3c 27 00 74 08 4c 89 f7 e8 70 11 f5 ff 49 8b 16 4c 89 6c 24 [ 43.341941][ T374] RSP: 0018:ffffc900040afb80 EFLAGS: 00010206 [ 43.348190][ T374] RAX: 0000000000000018 RBX: ffff88810cc459c0 RCX: ffff8881101862c0 [ 43.357142][ T374] RDX: 0000000000000000 RSI: 0000000000400000 RDI: 0000000000200000 [ 43.365291][ T374] RBP: ffffc900040afcf0 R08: dffffc0000000000 R09: ffffed10219858b6 [ 43.373381][ T374] R10: ffffed10219858b6 R11: 1ffff110219858b5 R12: dffffc0000000000 [ 43.381587][ T374] R13: ffff888123393600 R14: 0000000000000048 R15: 0000000000000009 [ 43.389759][ T374] FS: 00007f299375c6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 43.398838][ T374] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.405451][ T374] CR2: 00007f299375bf98 CR3: 000000012cb98000 CR4: 00000000003506a0 [ 43.413492][ T374] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.421651][ T374] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.429656][ T374] Kernel panic - not syncing: Fatal exception [ 43.435921][ T374] Kernel Offset: disabled [ 43.440246][ T374] Rebooting in 86400 seconds..