syzkaller
syzkaller login: [ 14.858442][ T36] kauditd_printk_skb: 26 callbacks suppressed
[ 14.858459][ T36] audit: type=1400 audit(1789248458.550:59): avc: denied { transition } for pid=233 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
[ 14.863042][ T36] audit: type=1400 audit(1789248458.550:60): avc: denied { noatsecure } for pid=233 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 14.867183][ T36] audit: type=1400 audit(1789248458.560:61): avc: denied { write } for pid=233 comm="sh" path="pipe:[2349]" dev="pipefs" ino=2349 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[ 14.870721][ T36] audit: type=1400 audit(1789248458.560:62): avc: denied { rlimitinh } for pid=233 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 14.873659][ T36] audit: type=1400 audit(1789248458.560:63): avc: denied { siginh } for pid=233 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.1.141' (ED25519) to the list of known hosts.
2026/09/12 21:28:15 parsed 1 programs
2026/09/12 21:28:15 serving rpc on tcp://46011
[ 51.948398][ T36] audit: type=1400 audit(1789248495.640:64): avc: denied { node_bind } for pid=303 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1
[ 53.375754][ T36] audit: type=1400 audit(1789248497.060:65): avc: denied { mounton } for pid=309 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
[ 53.378928][ T309] cgroup: Unknown subsys name 'net'
[ 53.398708][ T36] audit: type=1400 audit(1789248497.070:66): avc: denied { mount } for pid=309 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
[ 53.425833][ T36] audit: type=1400 audit(1789248497.090:67): avc: denied { unmount } for pid=309 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 53.426277][ T309] cgroup: Unknown subsys name 'devices'
[ 53.547791][ T309] cgroup: Unknown subsys name 'hugetlb'
[ 53.553504][ T309] cgroup: Unknown subsys name 'rlimit'
[ 53.676279][ T36] audit: type=1400 audit(1789248497.370:68): avc: denied { setattr } for pid=309 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=190 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1
[ 53.699461][ T36] audit: type=1400 audit(1789248497.370:69): avc: denied { create } for pid=309 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 53.719876][ T36] audit: type=1400 audit(1789248497.370:70): avc: denied { write } for pid=309 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 53.740318][ T36] audit: type=1400 audit(1789248497.370:71): avc: denied { read } for pid=309 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
[ 53.760532][ T36] audit: type=1400 audit(1789248497.370:72): avc: denied { sys_module } for pid=309 comm="syz-executor" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1
[ 53.765432][ T313] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 53.781561][ T36] audit: type=1400 audit(1789248497.370:73): avc: denied { mounton } for pid=309 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
[ 53.820440][ T309] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 54.764996][ T315] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality.
[ 55.055352][ T332] bridge0: port 1(bridge_slave_0) entered blocking state
[ 55.062437][ T332] bridge0: port 1(bridge_slave_0) entered disabled state
[ 55.069527][ T332] bridge_slave_0: entered allmulticast mode
[ 55.076444][ T332] bridge_slave_0: entered promiscuous mode
[ 55.083064][ T332] bridge0: port 2(bridge_slave_1) entered blocking state
[ 55.090140][ T332] bridge0: port 2(bridge_slave_1) entered disabled state
[ 55.097215][ T332] bridge_slave_1: entered allmulticast mode
[ 55.103570][ T332] bridge_slave_1: entered promiscuous mode
[ 55.157558][ T332] bridge0: port 2(bridge_slave_1) entered blocking state
[ 55.164646][ T332] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 55.171980][ T332] bridge0: port 1(bridge_slave_0) entered blocking state
[ 55.179018][ T332] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 55.199487][ T46] bridge0: port 1(bridge_slave_0) entered disabled state
[ 55.206728][ T46] bridge0: port 2(bridge_slave_1) entered disabled state
[ 55.216774][ T53] bridge0: port 1(bridge_slave_0) entered blocking state
[ 55.223828][ T53] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 55.232445][ T46] bridge0: port 2(bridge_slave_1) entered blocking state
[ 55.239590][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 55.265945][ T332] veth0_vlan: entered promiscuous mode
[ 55.276696][ T332] veth1_macvtap: entered promiscuous mode
[ 55.348740][ T336] bridge_slave_1: left allmulticast mode
[ 55.354423][ T336] bridge_slave_1: left promiscuous mode
[ 55.360266][ T336] bridge0: port 2(bridge_slave_1) entered disabled state
[ 55.367858][ T336] bridge_slave_0: left allmulticast mode
[ 55.373515][ T336] bridge_slave_0: left promiscuous mode
[ 55.379252][ T336] bridge0: port 1(bridge_slave_0) entered disabled state
[ 55.524479][ T336] veth1_macvtap: left promiscuous mode
[ 55.531520][ T336] veth0_vlan: left promiscuous mode
2026/09/12 21:28:19 executed programs: 0
[ 56.157533][ T377] bridge0: port 1(bridge_slave_0) entered blocking state
[ 56.164586][ T377] bridge0: port 1(bridge_slave_0) entered disabled state
[ 56.171705][ T377] bridge_slave_0: entered allmulticast mode
[ 56.178019][ T377] bridge_slave_0: entered promiscuous mode
[ 56.184346][ T377] bridge0: port 2(bridge_slave_1) entered blocking state
[ 56.191416][ T377] bridge0: port 2(bridge_slave_1) entered disabled state
[ 56.198564][ T377] bridge_slave_1: entered allmulticast mode
[ 56.204863][ T377] bridge_slave_1: entered promiscuous mode
[ 56.256467][ T377] bridge0: port 2(bridge_slave_1) entered blocking state
[ 56.263535][ T377] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 56.270869][ T377] bridge0: port 1(bridge_slave_0) entered blocking state
[ 56.277978][ T377] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 56.299081][ T46] bridge0: port 1(bridge_slave_0) entered disabled state
[ 56.306397][ T46] bridge0: port 2(bridge_slave_1) entered disabled state
[ 56.315326][ T13] bridge0: port 1(bridge_slave_0) entered blocking state
[ 56.322398][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 56.331540][ T46] bridge0: port 2(bridge_slave_1) entered blocking state
[ 56.338628][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 56.364317][ T377] veth0_vlan: entered promiscuous mode
[ 56.375274][ T377] veth1_macvtap: entered promiscuous mode
[ 196.615791][ T37] INFO: task jbd2/sda1-8:74 blocked for more than 122 seconds.
[ 196.623372][ T37] Not tainted syzkaller #0
[ 196.628372][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 196.637091][ T37] task:jbd2/sda1-8 state:D stack:0 pid:74 tgid:74 ppid:2 flags:0x00004000
[ 196.647313][ T37] Call Trace:
[ 196.650607][ T37]
[ 196.653534][ T37] __schedule+0x1496/0x20b0
[ 196.658085][ T37] ? __sched_text_start+0x10/0x10
[ 196.663127][ T37] ? dd_has_work+0x1f3/0x2f0
[ 196.667761][ T37] ? __kasan_check_write+0x18/0x20
[ 196.672888][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160
[ 196.678387][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10
[ 196.684295][ T37] ? blk_mq_flush_plug_list+0x1517/0x1750
[ 196.690047][ T37] schedule+0xc5/0x240
[ 196.694168][ T37] io_schedule+0x85/0x150
[ 196.698535][ T37] bit_wait_io+0x17/0xd0
[ 196.702797][ T37] __wait_on_bit+0xb6/0x2e0
[ 196.707333][ T37] ? __cfi_bit_wait_io+0x10/0x10
[ 196.712291][ T37] out_of_line_wait_on_bit+0x139/0x190
[ 196.717784][ T37] ? __cfi_bit_wait_io+0x10/0x10
[ 196.722738][ T37] ? __cfi_out_of_line_wait_on_bit+0x10/0x10
[ 196.728756][ T37] ? __cfi_wake_bit_function+0x10/0x10
[ 196.734235][ T37] ? __cfi__raw_write_lock+0x10/0x10
[ 196.739560][ T37] ? _raw_read_unlock+0x16/0x40
[ 196.744427][ T37] __wait_on_buffer+0x5a/0x70
[ 196.749143][ T37] jbd2_journal_commit_transaction+0x2dba/0x5510
[ 196.755500][ T37] ? __cfi_jbd2_journal_commit_transaction+0x10/0x10
[ 196.762205][ T37] ? __schedule+0x149e/0x20b0
[ 196.766916][ T37] ? __kasan_check_write+0x18/0x20
[ 196.772029][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160
[ 196.777702][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160
[ 196.783236][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10
[ 196.789224][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160
[ 196.794717][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70
[ 196.800581][ T37] ? __try_to_del_timer_sync+0x2e8/0x440
[ 196.806280][ T37] kjournald2+0x386/0x6a0
[ 196.810618][ T37] ? __cfi_kjournald2+0x10/0x10
[ 196.815462][ T37] ? set_cpus_allowed_ptr+0xa1/0xf0
[ 196.820695][ T37] ? __cfi_autoremove_wake_function+0x10/0x10
[ 196.826811][ T37] ? __kasan_check_read+0x15/0x20
[ 196.831929][ T37] ? __kthread_parkme+0x12f/0x180
[ 196.837006][ T37] ? schedule+0xc5/0x240
[ 196.841269][ T37] kthread+0x2c4/0x360
[ 196.845340][ T37] ? __cfi_kjournald2+0x10/0x10
[ 196.850235][ T37] ? __cfi_kthread+0x10/0x10
[ 196.854833][ T37] ret_from_fork+0x64/0xa0
[ 196.859301][ T37] ? __cfi_kthread+0x10/0x10
[ 196.863917][ T37] ret_from_fork_asm+0x1a/0x30
[ 196.868726][ T37]
[ 196.871768][ T37] INFO: task syz.2.214:579 blocked for more than 123 seconds.
[ 196.879256][ T37] Not tainted syzkaller #0
[ 196.884204][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 196.892903][ T37] task:syz.2.214 state:D stack:0 pid:579 tgid:579 ppid:377 flags:0x00000004
[ 196.903151][ T37] Call Trace:
[ 196.906476][ T37]
[ 196.909509][ T37] __schedule+0x1496/0x20b0
[ 196.914018][ T37] ? asm_exc_page_fault+0x2b/0x30
[ 196.919182][ T37] ? __sched_text_start+0x10/0x10
[ 196.924227][ T37] ? __kasan_check_write+0x18/0x20
[ 196.929898][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160
[ 196.935397][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10
[ 196.941320][ T37] ? folio_mark_accessed+0x35f/0x620
[ 196.946640][ T37] schedule+0xc5/0x240
[ 196.950710][ T37] io_schedule+0x85/0x150
[ 196.955035][ T37] bit_wait_io+0x17/0xd0
[ 196.959340][ T37] __wait_on_bit+0xb6/0x2e0
[ 196.963874][ T37] ? __cfi_bit_wait_io+0x10/0x10
[ 196.968862][ T37] out_of_line_wait_on_bit+0x139/0x190
[ 196.974428][ T37] ? __cfi_bit_wait_io+0x10/0x10
[ 196.979394][ T37] ? __cfi_out_of_line_wait_on_bit+0x10/0x10
[ 196.985407][ T37] ? __cfi_wake_bit_function+0x10/0x10
[ 196.990907][ T37] do_get_write_access+0x558/0xd70
[ 196.996055][ T37] jbd2_journal_get_write_access+0x268/0x3d0
[ 197.002032][ T37] __ext4_journal_get_write_access+0x1b6/0x6a0
[ 197.008238][ T37] ? __cfi___ext4_journal_get_write_access+0x10/0x10
[ 197.014943][ T37] ? __kasan_slab_alloc+0x73/0x90
[ 197.020044][ T37] ? kmem_cache_alloc_noprof+0x1e2/0x410
[ 197.025731][ T37] ext4_reserve_inode_write+0x1f6/0x2e0
[ 197.031296][ T37] __ext4_mark_inode_dirty+0xac/0x5e0
[ 197.036791][ T37] ext4_dirty_inode+0xc9/0x110
[ 197.041582][ T37] ? __cfi_ext4_dirty_inode+0x10/0x10
[ 197.047001][ T37] __mark_inode_dirty+0x24e/0xc50
[ 197.052049][ T37] ? __cfi___mark_inode_dirty+0x10/0x10
[ 197.057723][ T37] ? mnt_get_write_access_file+0x1af/0x3b0
[ 197.063565][ T37] ? __kasan_check_read+0x15/0x20
[ 197.068673][ T37] file_update_time+0x1d3/0x210
[ 197.073560][ T37] ext4_page_mkwrite+0x2bf/0x1120
[ 197.078625][ T37] ? __kasan_check_write+0x18/0x20
[ 197.083754][ T37] ? folio_unlock+0x137/0x1b0
[ 197.088479][ T37] ? __cfi_ext4_page_mkwrite+0x10/0x10
[ 197.093975][ T37] ? __alloc_pages_noprof+0x35a/0x7e0
[ 197.099389][ T37] do_pte_missing+0x12c4/0x4440
[ 197.104369][ T37] ? pte_marker_clear+0x1b0/0x1b0
[ 197.109475][ T37] ? __thp_vma_allowable_orders+0x820/0x9a0
[ 197.115415][ T37] ? __cfi___pmd_alloc+0x10/0x10
[ 197.120414][ T37] ? __cfi___thp_vma_allowable_orders+0x10/0x10
[ 197.126725][ T37] handle_mm_fault+0x1189/0x1ba0
[ 197.131679][ T37] ? __cfi_handle_mm_fault+0x10/0x10
[ 197.137009][ T37] ? lock_vma_under_rcu+0x4cf/0x590
[ 197.142237][ T37] do_user_addr_fault+0x951/0x1230
[ 197.147399][ T37] ? __x64_sys_prctl+0xf0/0xf0
[ 197.152185][ T37] ? fpregs_assert_state_consistent+0xb6/0xe0
[ 197.158299][ T37] exc_page_fault+0x58/0xc0
[ 197.162830][ T37] asm_exc_page_fault+0x2b/0x30
[ 197.167736][ T37] RIP: 0033:0x7f416a26baa3
[ 197.172182][ T37] RSP: 002b:00007ffe60a3ba80 EFLAGS: 00010246
[ 197.178312][ T37] RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000
[ 197.186355][ T37] RDX: 0000001b34424000 RSI: 0000000000040000 RDI: 00007f416a5e0708
[ 197.194338][ T37] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 197.202358][ T37] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 197.210361][ T37] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe60a3bd10
[ 197.218381][ T37]
[ 197.221425][ T37] NMI backtrace for cpu 0
[ 197.221454][ T37] CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 238002c42480d657f84ffff3a67e0b81dcf43858
[ 197.221493][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 197.221502][ T37] Call Trace:
[ 197.221506][ T37]
[ 197.221511][ T37] __dump_stack+0x21/0x30
[ 197.221534][ T37] dump_stack_lvl+0x140/0x1c0
[ 197.221554][ T37] ? __cfi_dump_stack_lvl+0x10/0x10
[ 197.221574][ T37] ? rcu_preempt_deferred_qs_irqrestore+0x6d6/0xa50
[ 197.221597][ T37] dump_stack+0x19/0x20
[ 197.221616][ T37] nmi_cpu_backtrace+0x2ba/0x2d0
[ 197.221638][ T37] ? rcu_read_unlock_special+0x150/0x420
[ 197.221658][ T37] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 197.221679][ T37] ? sched_show_task+0x371/0x530
[ 197.221698][ T37] ? __rcu_read_unlock+0xc0/0xc0
[ 197.221736][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 197.221757][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 197.221778][ T37] nmi_trigger_cpumask_backtrace+0x142/0x2c0
[ 197.221802][ T37] arch_trigger_cpumask_backtrace+0x14/0x20
[ 197.221823][ T37] watchdog+0xe45/0xf90
[ 197.221839][ T37] ? __kasan_check_write+0x18/0x20
[ 197.221857][ T37] ? __cfi_watchdog+0x10/0x10
[ 197.221872][ T37] ? __kasan_check_read+0x15/0x20
[ 197.221887][ T37] ? __kthread_parkme+0x12f/0x180
[ 197.221903][ T37] ? schedule+0xc5/0x240
[ 197.221918][ T37] kthread+0x2c4/0x360
[ 197.221934][ T37] ? __cfi_watchdog+0x10/0x10
[ 197.221950][ T37] ? __cfi_kthread+0x10/0x10
[ 197.221967][ T37] ret_from_fork+0x64/0xa0
[ 197.221989][ T37] ? __cfi_kthread+0x10/0x10
[ 197.222006][ T37] ret_from_fork_asm+0x1a/0x30
[ 197.222022][ T37]
[ 197.222027][ T37] Sending NMI from CPU 0 to CPUs 1:
[ 197.392281][ C1] NMI backtrace for cpu 1
[ 197.392293][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 238002c42480d657f84ffff3a67e0b81dcf43858
[ 197.392312][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[ 197.392321][ C1] RIP: 0010:pv_native_safe_halt+0x13/0x20
[ 197.392347][ C1] Code: cc cc cc cc cc cc cc b8 d4 47 3e 46 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 03 48 42 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
[ 197.392358][ C1] RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2
[ 197.392372][ C1] RAX: ffff8881f6f00000 RBX: ffff888103668000 RCX: ffffffff85a514fd
[ 197.392383][ C1] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 000000000001f13c
[ 197.392392][ C1] RBP: ffffc900001a7e00 R08: ffff8881f6f395eb R09: 1ffff1103ede72bd
[ 197.392403][ C1] R10: dffffc0000000000 R11: ffffed103ede72be R12: 0000000000000000
[ 197.392413][ C1] R13: 1ffff110206cd000 R14: dffffc0000000000 R15: ffffffff87ece068
[ 197.392424][ C1] FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[ 197.392436][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 197.392446][ C1] CR2: 00007f297e5dd100 CR3: 000000010c74c000 CR4: 00000000003526b0
[ 197.392460][ C1] Call Trace:
[ 197.392467][ C1]
[ 197.392474][ C1] default_idle+0x17/0x30
[ 197.392495][ C1] arch_cpu_idle+0xd/0x20
[ 197.392514][ C1] default_idle_call+0x3e/0x80
[ 197.392534][ C1] do_idle+0x1df/0x570
[ 197.392550][ C1] ? idle_inject_timer_fn+0x80/0x80
[ 197.392567][ C1] ? _raw_spin_unlock_irqrestore+0x4a/0x70
[ 197.392582][ C1] ? complete+0x172/0x1d0
[ 197.392596][ C1] cpu_startup_entry+0x47/0x60
[ 197.392612][ C1] start_secondary+0x12e/0x140
[ 197.392632][ C1] common_startup_64+0x13b/0x157
[ 197.392655][ C1]