syzkaller syzkaller login: [ 14.706518][ T28] kauditd_printk_skb: 31 callbacks suppressed [ 14.706534][ T28] audit: type=1400 audit(1786092625.853:59): 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 [ 14.711355][ T28] audit: type=1400 audit(1786092625.853:60): 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 [ 14.715502][ T28] audit: type=1400 audit(1786092625.863:61): avc: denied { write } for pid=225 comm="sh" path="pipe:[15167]" dev="pipefs" ino=15167 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.719274][ T28] audit: type=1400 audit(1786092625.863:62): 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 [ 14.722420][ T28] audit: type=1400 audit(1786092625.863:63): 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 '10.128.1.152' (ED25519) to the list of known hosts. 2026/08/07 08:50:35 parsed 1 programs 2026/08/07 08:50:35 serving rpc on tcp://39581 [ 24.607326][ T28] audit: type=1400 audit(1786092635.753:64): 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 [ 24.628254][ T28] audit: type=1400 audit(1786092635.753:65): 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 [ 25.804300][ T28] audit: type=1400 audit(1786092636.953:66): 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 [ 25.807610][ T301] cgroup: Unknown subsys name 'net' [ 25.826978][ T28] audit: type=1400 audit(1786092636.953:67): 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 [ 25.854293][ T28] audit: type=1400 audit(1786092636.973:68): 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 [ 25.854717][ T301] cgroup: Unknown subsys name 'devices' [ 25.996834][ T301] cgroup: Unknown subsys name 'hugetlb' [ 26.002502][ T301] cgroup: Unknown subsys name 'rlimit' [ 26.145455][ T28] audit: type=1400 audit(1786092637.293:69): 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 [ 26.168700][ T28] audit: type=1400 audit(1786092637.293:70): 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 [ 26.189168][ T28] audit: type=1400 audit(1786092637.293:71): 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 [ 26.209591][ T28] audit: type=1400 audit(1786092637.293:72): 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 [ 26.230783][ T28] audit: type=1400 audit(1786092637.293:73): 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 [ 26.242538][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.286195][ T301] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.955452][ T307] request_module fs-gadgetfs succeeded, but still no fs? [ 27.055851][ T313] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.062976][ T313] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.070666][ T313] device bridge_slave_0 entered promiscuous mode [ 27.078811][ T313] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.086229][ T313] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.093880][ T313] device bridge_slave_1 entered promiscuous mode [ 27.148453][ T313] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.155571][ T313] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.162901][ T313] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.170039][ T313] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.192458][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.200577][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.208393][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.216116][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.226202][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.234430][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.241459][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.250428][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.258819][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.265931][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.279486][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.289450][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.304612][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.318055][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.326297][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.333808][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.342372][ T313] device veth0_vlan entered promiscuous mode [ 27.353149][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.362804][ T313] device veth1_macvtap entered promiscuous mode [ 27.373476][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.383954][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.417510][ T313] syz-executor (313) used greatest stack depth: 21536 bytes left [ 28.116725][ T8] device bridge_slave_1 left promiscuous mode [ 28.122873][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.131053][ T8] device bridge_slave_0 left promiscuous mode [ 28.137429][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.145673][ T8] device veth1_macvtap left promiscuous mode [ 28.151705][ T8] device veth0_vlan left promiscuous mode 2026/08/07 08:50:39 executed programs: 0 [ 28.504617][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.511693][ T370] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.519810][ T370] device bridge_slave_0 entered promiscuous mode [ 28.527119][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.534295][ T370] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.541720][ T370] device bridge_slave_1 entered promiscuous mode [ 28.587337][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.594433][ T370] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.601709][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.608814][ T370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.629177][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.636842][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.644040][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.654024][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.662352][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.669417][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.678391][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.686611][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.693642][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.706609][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.715954][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.730815][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.742610][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.751047][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.759215][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.767677][ T370] device veth0_vlan entered promiscuous mode [ 28.778327][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.787689][ T370] device veth1_macvtap entered promiscuous mode [ 28.797646][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.807783][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.875413][ T375] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.18: Invalid inode table block 0 in block_group 0 [ 28.888006][ T375] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 28.897885][ T375] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.18: mark_inode_dirty error [ 28.914935][ T375] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.18: Invalid inode table block 0 in block_group 0 [ 28.927582][ T375] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 28.937191][ T375] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.18: mark_inode_dirty error [ 28.978223][ T377] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.19: Invalid inode table block 0 in block_group 0 [ 28.990990][ T377] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 29.000663][ T377] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.19: mark_inode_dirty error [ 29.015384][ T377] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.19: Invalid inode table block 0 in block_group 0 [ 29.374977][ T39] JBD2: Spotted dirty metadata buffer (dev = sda1, blocknr = 0). There's a risk of filesystem corruption in case of system crash. [ 32.838356][ T6] JBD2: Spotted dirty metadata buffer (dev = sda1, blocknr = 0). There's a risk of filesystem corruption in case of system crash. 2026/08/07 08:50:44 executed programs: 260 [ 33.886232][ T662] EXT4-fs error: 782 callbacks suppressed [ 33.886249][ T662] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.303: Invalid inode table block 0 in block_group 0 [ 33.904744][ T662] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 33.914854][ T662] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.303: mark_inode_dirty error [ 33.926518][ T662] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.303: Invalid inode table block 0 in block_group 0 [ 33.939031][ T662] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 33.948479][ T662] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.303: mark_inode_dirty error [ 33.968386][ T663] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.304: Invalid inode table block 0 in block_group 0 [ 33.981331][ T663] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 33.990928][ T663] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.304: mark_inode_dirty error [ 34.002815][ T663] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.304: Invalid inode table block 0 in block_group 0 2026/08/07 08:50:49 executed programs: 554 [ 38.896415][ T954] EXT4-fs error: 821 callbacks suppressed [ 38.896428][ T954] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.595: Invalid inode table block 0 in block_group 0 [ 38.914941][ T954] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 38.924579][ T954] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.595: mark_inode_dirty error [ 38.936486][ T954] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.595: Invalid inode table block 0 in block_group 0 [ 38.949079][ T954] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 38.958529][ T954] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.595: mark_inode_dirty error [ 38.990128][ T955] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.596: Invalid inode table block 0 in block_group 0 [ 39.002749][ T955] EXT4-fs error (device sda1) in ext4_reserve_inode_write:5954: Corrupt filesystem [ 39.012227][ T955] EXT4-fs error (device sda1): ext4_dirty_inode:6158: inode #2029: comm syz.2.596: mark_inode_dirty error [ 39.023882][ T955] EXT4-fs error (device sda1): __ext4_get_inode_loc:4522: comm syz.2.596: Invalid inode table block 0 in block_group 0 SYZFAIL: posix_spawnp failed (errno 117: Structure needs cleaning) [ 39.351107][ T308] udevd[308]: incorrect ext4 checksum on /dev/sda1 connection error: failed to recv *flatrpc.ExecutorMessageRawT: read tcp 127.0.0.1:39581->127.0.0.1:34992: read: connection reset by peer [ 39.392502][ T301] EXT4-fs warning (device sda1): ext4_evict_inode:284: couldn't mark inode dirty (err -117) [ 39.403160][ T301] EXT4-fs warning (device sda1): ext4_evict_inode:284: couldn't mark inode dirty (err -117) [ 39.964763][ T43] device bridge_slave_1 left promiscuous mode [ 39.971007][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.978935][ T43] device bridge_slave_0 left promiscuous mode [ 39.985145][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.993506][ T43] device veth1_macvtap left promiscuous mode [ 39.999799][ T43] device veth0_vlan left promiscuous mode [ 45.497341][ T8] EXT4-fs error: 69 callbacks suppressed [ 45.497358][ T8] EXT4-fs error (device sda1): ext4_read_block_bitmap_nowait:477: comm kworker/u4:0: Invalid block bitmap block 0 in block_group 1 [ 45.516710][ T8] EXT4-fs (sda1): Delayed block allocation failed for inode 2021 at logical offset 392 with max blocks 2048 with error 117 [ 45.529552][ T8] EXT4-fs (sda1): This should not happen!! Data will be lost [ 45.529552][ T8]