Warning: Permanently added '10.128.1.54' (ED25519) to the list of known hosts.
2025/12/12 05:37:04 parsed 1 programs
[ 253.852401][ T28] audit: type=1400 audit(1765517824.687:64): 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
[ 253.873203][ T28] audit: type=1400 audit(1765517824.687:65): 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
[ 254.605128][ T28] audit: type=1400 audit(1765517825.437:66): avc: denied { mounton } for pid=291 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
[ 254.606528][ T291] cgroup: Unknown subsys name 'net'
[ 254.627810][ T28] audit: type=1400 audit(1765517825.437:67): avc: denied { mount } for pid=291 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
[ 254.655071][ T28] audit: type=1400 audit(1765517825.467:68): avc: denied { unmount } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 254.655339][ T291] cgroup: Unknown subsys name 'devices'
[ 254.772051][ T291] cgroup: Unknown subsys name 'hugetlb'
[ 254.777707][ T291] cgroup: Unknown subsys name 'rlimit'
[ 254.915030][ T28] audit: type=1400 audit(1765517825.747:69): avc: denied { setattr } for pid=291 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
[ 254.938209][ T28] audit: type=1400 audit(1765517825.747:70): avc: denied { create } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 254.950056][ T294] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 254.958777][ T28] audit: type=1400 audit(1765517825.747:71): avc: denied { write } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 254.987372][ T28] audit: type=1400 audit(1765517825.747:72): avc: denied { read } for pid=291 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
[ 255.007671][ T28] audit: type=1400 audit(1765517825.747:73): avc: denied { mounton } for pid=291 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
[ 255.035925][ T291] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 255.680955][ T296] request_module fs-gadgetfs succeeded, but still no fs?
[ 256.247371][ T336] bridge0: port 1(bridge_slave_0) entered blocking state
[ 256.254458][ T336] bridge0: port 1(bridge_slave_0) entered disabled state
[ 256.262235][ T336] device bridge_slave_0 entered promiscuous mode
[ 256.269072][ T336] bridge0: port 2(bridge_slave_1) entered blocking state
[ 256.276353][ T336] bridge0: port 2(bridge_slave_1) entered disabled state
[ 256.284029][ T336] device bridge_slave_1 entered promiscuous mode
[ 256.326208][ T336] bridge0: port 2(bridge_slave_1) entered blocking state
[ 256.333252][ T336] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 256.340523][ T336] bridge0: port 1(bridge_slave_0) entered blocking state
[ 256.347533][ T336] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 256.364808][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 256.372806][ T8] bridge0: port 1(bridge_slave_0) entered disabled state
[ 256.380080][ T8] bridge0: port 2(bridge_slave_1) entered disabled state
[ 256.388844][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 256.397314][ T8] bridge0: port 1(bridge_slave_0) entered blocking state
[ 256.404362][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 256.413187][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 256.421396][ T8] bridge0: port 2(bridge_slave_1) entered blocking state
[ 256.428407][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 256.440178][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 256.449282][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 256.464378][ T336] device veth0_vlan entered promiscuous mode
[ 256.470722][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 256.479092][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 256.487250][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 256.494866][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 256.506231][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 256.515261][ T336] device veth1_macvtap entered promiscuous mode
[ 256.524397][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 256.534504][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 256.566360][ T336] syz-executor (336) used greatest stack depth: 21568 bytes left
2025/12/12 05:37:07 executed programs: 0
[ 256.846127][ T365] bridge0: port 1(bridge_slave_0) entered blocking state
[ 256.853323][ T365] bridge0: port 1(bridge_slave_0) entered disabled state
[ 256.860762][ T365] device bridge_slave_0 entered promiscuous mode
[ 256.867482][ T365] bridge0: port 2(bridge_slave_1) entered blocking state
[ 256.874676][ T365] bridge0: port 2(bridge_slave_1) entered disabled state
[ 256.882300][ T365] device bridge_slave_1 entered promiscuous mode
[ 256.925584][ T365] bridge0: port 2(bridge_slave_1) entered blocking state
[ 256.932626][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 256.939869][ T365] bridge0: port 1(bridge_slave_0) entered blocking state
[ 256.946896][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 256.971306][ T10] bridge0: port 1(bridge_slave_0) entered disabled state
[ 256.978596][ T10] bridge0: port 2(bridge_slave_1) entered disabled state
[ 256.986026][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 256.993502][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 257.002362][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 257.010560][ T10] bridge0: port 1(bridge_slave_0) entered blocking state
[ 257.017566][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 257.032202][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 257.040366][ T10] bridge0: port 2(bridge_slave_1) entered blocking state
[ 257.047364][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 257.058515][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 257.067708][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 257.080924][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 257.095027][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 257.103229][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 257.110779][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 257.118989][ T365] device veth0_vlan entered promiscuous mode
[ 257.134271][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 257.143287][ T365] device veth1_macvtap entered promiscuous mode
[ 257.152423][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 257.162069][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 257.193980][ T376] loop2: detected capacity change from 0 to 1024
[ 257.201470][ T376] =======================================================
[ 257.201470][ T376] WARNING: The mand mount option has been deprecated and
[ 257.201470][ T376] and is ignored by this kernel. Remove the mand
[ 257.201470][ T376] option from the mount to silence this warning.
[ 257.201470][ T376] =======================================================
[ 257.236746][ T376] EXT4-fs: Ignoring removed oldalloc option
[ 257.242690][ T376] EXT4-fs: Ignoring removed orlov option
[ 257.251859][ T376] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback.
[ 257.930948][ T43] device bridge_slave_1 left promiscuous mode
[ 257.937094][ T43] bridge0: port 2(bridge_slave_1) entered disabled state
[ 257.945134][ T43] device bridge_slave_0 left promiscuous mode
[ 257.951449][ T43] bridge0: port 1(bridge_slave_0) entered disabled state
[ 257.959518][ T43] device veth1_macvtap left promiscuous mode
[ 257.965788][ T43] device veth0_vlan left promiscuous mode
[ 258.439939][ C0] sched: RT throttling activated
[ 272.253088][ T382] bridge0: port 1(bridge_slave_0) entered blocking state
[ 272.260478][ T382] bridge0: port 1(bridge_slave_0) entered disabled state
[ 272.267907][ T382] device bridge_slave_0 entered promiscuous mode
[ 272.275096][ T382] bridge0: port 2(bridge_slave_1) entered blocking state
[ 272.282295][ T382] bridge0: port 2(bridge_slave_1) entered disabled state
[ 272.289729][ T382] device bridge_slave_1 entered promiscuous mode
[ 272.353369][ T382] bridge0: port 2(bridge_slave_1) entered blocking state
[ 272.360434][ T382] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 272.367713][ T382] bridge0: port 1(bridge_slave_0) entered blocking state
[ 272.374768][ T382] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 272.398905][ T348] bridge0: port 1(bridge_slave_0) entered disabled state
[ 272.406462][ T348] bridge0: port 2(bridge_slave_1) entered disabled state
[ 272.414779][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 272.422439][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 272.432210][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 272.440450][ T348] bridge0: port 1(bridge_slave_0) entered blocking state
[ 272.447457][ T348] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 272.456000][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 272.464202][ T348] bridge0: port 2(bridge_slave_1) entered blocking state
[ 272.471235][ T348] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 272.491769][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 272.500301][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 272.513468][ T382] device veth0_vlan entered promiscuous mode
[ 272.520888][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 272.529026][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 272.536698][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 272.544521][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 272.559082][ T382] device veth1_macvtap entered promiscuous mode
[ 272.566238][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 272.579076][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 272.600265][ T348] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
2025/12/12 05:37:23 executed programs: 3
[ 272.627402][ T393] loop3: detected capacity change from 0 to 1024
[ 272.634119][ T393] EXT4-fs: Ignoring removed oldalloc option
[ 272.640074][ T393] EXT4-fs: Ignoring removed orlov option
[ 272.660359][ T393] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback.
[ 372.659889][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 372.667075][ C0] (detected by 0, t=10002 jiffies, g=1461, q=1121 ncpus=2)
[ 372.674364][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10001 (4294974485-4294964484), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 372.687722][ C0] rcu: rcu_preempt kthread starved for 10002 jiffies! g1461 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[ 372.698821][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 372.708777][ C0] rcu: RCU grace-period kthread stack dump:
[ 372.714650][ C0] task:rcu_preempt state:R running task stack:28528 pid:14 ppid:2 flags:0x00004000
[ 372.725429][ C0] Call Trace:
[ 372.728700][ C0]
[ 372.731629][ C0] __schedule+0xb87/0x14e0
[ 372.736163][ C0] ? __sched_text_start+0x8/0x8
[ 372.741010][ C0] schedule+0xbd/0x170
[ 372.745070][ C0] schedule_timeout+0x12c/0x2e0
[ 372.749920][ C0] ? __cfi_schedule_timeout+0x10/0x10
[ 372.755282][ C0] ? _raw_spin_lock_irqsave+0xb0/0x110
[ 372.760737][ C0] ? __cfi_process_timeout+0x10/0x10
[ 372.766057][ C0] ? prepare_to_swait_event+0x308/0x320
[ 372.771652][ C0] rcu_gp_fqs_loop+0x2d8/0x10a0
[ 372.776493][ C0] ? __cfi_dyntick_save_progress_counter+0x10/0x10
[ 372.782986][ C0] ? rcu_gp_init+0xf10/0xf10
[ 372.787567][ C0] rcu_gp_kthread+0x95/0x370
[ 372.792144][ C0] ? __cfi_rcu_gp_kthread+0x10/0x10
[ 372.797341][ C0] ? __kasan_check_read+0x11/0x20
[ 372.802383][ C0] ? __kthread_parkme+0x142/0x180
[ 372.807450][ C0] kthread+0x281/0x320
[ 372.811541][ C0] ? __cfi_rcu_gp_kthread+0x10/0x10
[ 372.816741][ C0] ? __cfi_kthread+0x10/0x10
[ 372.821320][ C0] ret_from_fork+0x1f/0x30
[ 372.825757][ C0]
[ 372.828765][ C0] rcu: Stack dump where RCU GP kthread last ran:
[ 372.835074][ C0] Sending NMI from CPU 0 to CPUs 1:
[ 372.840278][ C1] NMI backtrace for cpu 1
[ 372.840342][ C1] CPU: 1 PID: 393 Comm: syz.3.18 Not tainted syzkaller #0
[ 372.840358][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 372.840370][ C1] RIP: 0010:__ext4_handle_dirty_metadata+0x4a/0x800
[ 372.840399][ C1] Code: 7d b8 49 bd 00 00 00 00 00 fc ff df e8 7f fd 8d ff 4c 89 ff be 08 00 00 00 e8 72 79 d2 ff 4c 89 fb 48 c1 eb 03 42 80 3c 2b 00 <74> 08 4c 89 ff e8 ec 76 d2 ff 4d 8b 27 4c 89 e6 48 81 e6 00 20 00
[ 372.840411][ C1] RSP: 0018:ffffc90000b96ee0 EFLAGS: 00000246
[ 372.840424][ C1] RAX: ffffffff81e22c01 RBX: 1ffff110223e6fa4 RCX: ffffffff81e22c4e
[ 372.840435][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888111f37d20
[ 372.840445][ C1] RBP: ffffc90000b96f40 R08: dffffc0000000000 R09: ffffed10223e6fa5
[ 372.840455][ C1] R10: ffffed10223e6fa5 R11: 1ffff110223e6fa4 R12: ffff888124338cd8
[ 372.840466][ C1] R13: dffffc0000000000 R14: 0000000000000002 R15: ffff888111f37d20
[ 372.840476][ C1] FS: 00005555601e4500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 372.840489][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 372.840499][ C1] CR2: 00007f1a8ffc4090 CR3: 000000010a4b9000 CR4: 00000000003506a0
[ 372.840512][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 372.840520][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 372.840529][ C1] Call Trace:
[ 372.840534][ C1]
[ 372.840540][ C1] ext4_mark_iloc_dirty+0x1253/0x1930
[ 372.840580][ C1] ? __cfi___ext4_journal_get_write_access+0x10/0x10
[ 372.840598][ C1] __ext4_mark_inode_dirty+0x423/0x600
[ 372.840616][ C1] ext4_dirty_inode+0xbd/0x100
[ 372.840633][ C1] ? __cfi_ext4_dirty_inode+0x10/0x10
[ 372.840651][ C1] __mark_inode_dirty+0x203/0x9d0
[ 372.840673][ C1] ext4_xattr_block_set+0x167d/0x3270
[ 372.840698][ C1] ? ext4_xattr_block_find+0x310/0x310
[ 372.840718][ C1] ? ext4_xattr_block_find+0xf0/0x310
[ 372.840737][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 372.840758][ C1] ? __cfi_ext4_xattr_set_handle+0x10/0x10
[ 372.840776][ C1] ? selinux_inode_init_security+0x67d/0x950
[ 372.840801][ C1] ? __cfi_selinux_inode_init_security+0x10/0x10
[ 372.840817][ C1] ext4_initxattrs+0xa6/0x110
[ 372.840833][ C1] security_inode_init_security+0x28c/0x3a0
[ 372.840848][ C1] ? posix_acl_create+0x118/0x440
[ 372.840867][ C1] ? __cfi_ext4_initxattrs+0x10/0x10
[ 372.840882][ C1] ? __cfi_security_inode_init_security+0x10/0x10
[ 372.840898][ C1] ? dquot_alloc_inode+0x1d3/0x810
[ 372.840916][ C1] ? __cfi_inode_set_flags+0x10/0x10
[ 372.840939][ C1] ? __cfi_ext4_init_acl+0x10/0x10
[ 372.840954][ C1] ? _raw_spin_unlock+0x4c/0x70
[ 372.840971][ C1] ext4_init_security+0x34/0x40
[ 372.840985][ C1] __ext4_new_inode+0x2c29/0x3640
[ 372.841009][ C1] ? __cfi___ext4_new_inode+0x10/0x10
[ 372.841028][ C1] ? dquot_initialize+0x20/0x20
[ 372.841046][ C1] ? ext4_lookup+0x2ce/0x6d0
[ 372.841065][ C1] ext4_create+0x22a/0x460
[ 372.841085][ C1] ? __cfi_ext4_create+0x10/0x10
[ 372.841103][ C1] ? selinux_inode_create+0x22/0x30
[ 372.841117][ C1] ? security_inode_create+0xd2/0x120
[ 372.841132][ C1] ? __cfi_ext4_create+0x10/0x10
[ 372.841150][ C1] path_openat+0x11e3/0x2f50
[ 372.841175][ C1] ? do_filp_open+0x3c0/0x3c0
[ 372.841192][ C1] do_filp_open+0x1c1/0x3c0
[ 372.841208][ C1] ? __cfi_do_filp_open+0x10/0x10
[ 372.841226][ C1] ? alloc_fd+0x4e6/0x590
[ 372.841240][ C1] do_sys_openat2+0x185/0x7e0
[ 372.841258][ C1] ? __se_sys_futex+0x273/0x2e0
[ 372.841285][ C1] ? do_sys_open+0xe0/0xe0
[ 372.841302][ C1] ? __x64_sys_futex+0x100/0x100
[ 372.841315][ C1] ? do_user_addr_fault+0xd36/0x1050
[ 372.841369][ C1] __x64_sys_creat+0x8e/0xb0
[ 372.841388][ C1] x64_sys_call+0x116/0x9a0
[ 372.841404][ C1] do_syscall_64+0x4c/0xa0
[ 372.841433][ C1] ? clear_bhb_loop+0x30/0x80
[ 372.841453][ C1] ? clear_bhb_loop+0x30/0x80
[ 372.841472][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 372.841491][ C1] RIP: 0033:0x7f17b1f8f749
[ 372.841504][ C1] 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
[ 372.841515][ C1] RSP: 002b:00007fffbe7bbe88 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 372.841529][ C1] RAX: ffffffffffffffda RBX: 00007f17b21e5fa0 RCX: 00007f17b1f8f749
[ 372.841539][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 372.841548][ C1] RBP: 00007f17b2013f91 R08: 0000000000000000 R09: 0000000000000000
[ 372.841557][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 372.841565][ C1] R13: 00007f17b21e5fa0 R14: 00007f17b21e5fa0 R15: 0000000000000002
[ 372.841577][ C1]
[ 432.429931][ T29] INFO: task kworker/u4:4:348 blocked for more than 126 seconds.
[ 432.437709][ T29] Not tainted syzkaller #0
[ 432.442857][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 432.451577][ T29] task:kworker/u4:4 state:D stack:21472 pid:348 ppid:2 flags:0x00004000
[ 432.460830][ T29] Workqueue: events_unbound linkwatch_event
[ 432.466756][ T29] Call Trace:
[ 432.470173][ T29]
[ 432.473104][ T29] __schedule+0xb87/0x14e0
[ 432.477502][ T29] ? __sched_text_start+0x8/0x8
[ 433.430272][ T29] ? __mutex_add_waiter+0x17b/0x270
[ 433.435609][ T29] ? __kasan_check_write+0x14/0x20
[ 433.440808][ T29] ? kthread_data+0x50/0xc0
[ 433.445366][ T29] ? wq_worker_sleeping+0x64/0x280
[ 433.450582][ T29] schedule+0xbd/0x170
[ 433.454740][ T29] schedule_preempt_disabled+0x13/0x20
[ 433.460256][ T29] __mutex_lock+0x74a/0x16d0
[ 433.464840][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 433.471659][ T29] ? __kasan_check_write+0x14/0x20
[ 433.476767][ T29] ? __switch_to+0x51f/0xe30
[ 434.430407][ T29] ? __cfi___switch_to+0x10/0x10
[ 434.435441][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 434.440557][ T29] __mutex_lock_slowpath+0xe/0x10
[ 434.445682][ T29] mutex_lock+0xf8/0x1a0
[ 434.449944][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 434.454841][ T29] ? __schedule+0xb8f/0x14e0
[ 434.459423][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 434.464997][ T29] rtnl_lock+0x15/0x20
[ 434.469057][ T29] linkwatch_event+0xe/0x60
[ 434.473572][ T29] process_one_work+0x71f/0xc40
[ 434.478417][ T29] worker_thread+0xa29/0x11f0
[ 435.430386][ T29] ? _raw_spin_lock_irqsave+0xb0/0x110
[ 435.435886][ T29] ? __kthread_parkme+0x142/0x180
[ 435.440978][ T29] kthread+0x281/0x320
[ 435.445083][ T29] ? __cfi_worker_thread+0x10/0x10
[ 435.450244][ T29] ? __cfi_kthread+0x10/0x10
[ 435.454872][ T29] ret_from_fork+0x1f/0x30
[ 435.459283][ T29]
[ 435.462323][ T29] INFO: task syz-executor:398 blocked for more than 129 seconds.
[ 435.470074][ T29] Not tainted syzkaller #0
[ 435.474997][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 436.431147][ T29] task:syz-executor state:D stack:23264 pid:398 ppid:1 flags:0x00004004
[ 436.440533][ T29] Call Trace:
[ 436.443852][ T29]
[ 436.446769][ T29] __schedule+0xb87/0x14e0
[ 436.451193][ T29] ? __kasan_check_write+0x14/0x20
[ 436.456382][ T29] ? __sched_text_start+0x8/0x8
[ 436.461289][ T29] ? _raw_spin_unlock_irqrestore+0x5a/0x80
[ 436.467116][ T29] ? prepare_to_wait_event+0x40b/0x440
[ 436.472656][ T29] schedule+0xbd/0x170
[ 436.476738][ T29] synchronize_rcu_expedited+0x70e/0x810
[ 437.430067][ T29] ? kasan_quarantine_put+0x34/0x190
[ 437.435383][ T29] ? __cfi_synchronize_rcu_expedited+0x10/0x10
[ 437.441591][ T29] ? ____kasan_slab_free+0x13d/0x180
[ 437.446909][ T29] ? __kasan_slab_free+0x11/0x20
[ 437.451906][ T29] ? slab_free_freelist_hook+0xc2/0x190
[ 437.457456][ T29] ? __cfi_wait_rcu_exp_gp+0x10/0x10
[ 437.462774][ T29] ? __kmem_cache_free+0xb7/0x1b0
[ 437.467794][ T29] ? __kasan_check_write+0x14/0x20
[ 437.472978][ T29] ? kobject_put+0x1bb/0x280
[ 437.477582][ T29] ? __cfi_netdev_queue_release+0x10/0x10
[ 438.440831][ T29] ? __cfi_autoremove_wake_function+0x10/0x10
[ 438.446943][ T29] ? netdev_queue_update_kobjects+0x428/0x470
[ 438.453070][ T29] ? __x64_sys_sendto+0xe5/0x100
[ 438.458016][ T29] ? x64_sys_call+0x83/0x9a0
[ 438.462634][ T29] ? __kasan_check_read+0x11/0x20
[ 438.467650][ T29] netif_set_real_num_tx_queues+0x4c9/0x7f0
[ 438.473629][ T29] veth_newlink+0x874/0xbe0
[ 438.478156][ T29] ? __cfi_veth_newlink+0x10/0x10
[ 439.430145][ T29] ? rtnl_create_link+0x88d/0xb10
[ 439.435187][ T29] ? __cfi_veth_newlink+0x10/0x10
[ 439.440250][ T29] rtnl_newlink+0x14b9/0x2030
[ 439.444954][ T29] ? memcpy+0x56/0x70
[ 439.448933][ T29] ? __cfi_rtnl_newlink+0x10/0x10
[ 439.453964][ T29] ? selinux_capable+0x29c/0x380
[ 439.458932][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 439.464268][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 439.469117][ T29] ? ns_capable+0x8c/0xf0
[ 439.473543][ T29] ? netlink_net_capable+0x125/0x160
[ 439.478855][ T29] ? __cfi_rtnl_newlink+0x10/0x10
[ 440.440620][ T29] rtnetlink_rcv_msg+0x9f4/0xcf0
[ 440.445650][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 440.451161][ T29] ? kernel_text_address+0xa0/0xd0
[ 440.456264][ T29] ? __kernel_text_address+0xd/0x30
[ 440.461492][ T29] ? unwind_get_return_address+0x4d/0x90
[ 440.467119][ T29] ? memcpy+0x56/0x70
[ 440.471137][ T29] ? avc_has_perm_noaudit+0x2f4/0x460
[ 440.476505][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 441.430156][ T29] ? slab_post_alloc_hook+0x4f/0x2d0
[ 441.435496][ T29] ? kmem_cache_alloc_node+0x181/0x340
[ 441.441029][ T29] ? __alloc_skb+0xea/0x4b0
[ 441.445537][ T29] ? avc_has_perm+0x158/0x240
[ 441.450251][ T29] ? __alloc_skb+0x236/0x4b0
[ 441.454837][ T29] ? netlink_sendmsg+0x626/0xbc0
[ 441.459750][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 441.464803][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 441.470207][ T29] netlink_rcv_skb+0x1f2/0x440
[ 441.474952][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 442.431353][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 442.436685][ T29] ? __netlink_lookup+0x387/0x3b0
[ 442.441771][ T29] rtnetlink_rcv+0x1c/0x20
[ 442.446221][ T29] netlink_unicast+0x8ab/0xa30
[ 442.451047][ T29] netlink_sendmsg+0x8aa/0xbc0
[ 442.455835][ T29] ? kasan_save_alloc_info+0x25/0x30
[ 442.461134][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 442.466426][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 442.471922][ T29] __sys_sendto+0x464/0x5e0
[ 442.476421][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 443.430102][ T29] ? errseq_sample+0x44/0x70
[ 443.434773][ T29] ? __this_cpu_preempt_check+0x13/0x20
[ 443.440397][ T29] ? xfd_validate_state+0x70/0x150
[ 443.445580][ T29] __x64_sys_sendto+0xe5/0x100
[ 443.450348][ T29] x64_sys_call+0x83/0x9a0
[ 443.454760][ T29] do_syscall_64+0x4c/0xa0
[ 443.459155][ T29] ? clear_bhb_loop+0x30/0x80
[ 443.463862][ T29] ? clear_bhb_loop+0x30/0x80
[ 443.468534][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 443.474433][ T29] RIP: 0033:0x7f9e1af91583
[ 443.478838][ T29] RSP: 002b:00007ffdf3659ec8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 444.431376][ T29] RAX: ffffffffffffffda RBX: 00007f9e1bd14620 RCX: 00007f9e1af91583
[ 444.439377][ T29] RDX: 000000000000002c RSI: 00007f9e1bd14670 RDI: 0000000000000003
[ 444.447410][ T29] RBP: 0000000000000001 R08: 00007ffdf3659ee4 R09: 000000000000000c
[ 444.455480][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 444.463477][ T29] R13: 0000000000000000 R14: 00007f9e1bd14670 R15: 0000000000000000
[ 444.471498][ T29]
[ 444.474511][ T29] NMI backtrace for cpu 1
[ 444.478808][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted syzkaller #0
[ 444.485988][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 444.496035][ T29] Call Trace:
[ 444.499302][ T29]
[ 444.502229][ T29] __dump_stack+0x21/0x24
[ 444.506565][ T29] dump_stack_lvl+0xee/0x150
[ 444.511199][ T29] ? __cfi_dump_stack_lvl+0x8/0x8
[ 444.516235][ T29] dump_stack+0x15/0x24
[ 444.520416][ T29] nmi_cpu_backtrace+0x2b4/0x2c0
[ 444.525362][ T29] ? rcu_read_unlock_special+0xab/0x480
[ 444.530918][ T29] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 444.536377][ T29] ? __rcu_read_unlock+0xa0/0xa0
[ 444.541322][ T29] ? memcpy+0x56/0x70
[ 444.545307][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 444.551353][ T29] nmi_trigger_cpumask_backtrace+0x16b/0x3a0
[ 444.557332][ T29] arch_trigger_cpumask_backtrace+0x10/0x20
[ 444.563222][ T29] watchdog+0xd44/0xe80
[ 444.567379][ T29] ? __cfi_watchdog+0x10/0x10
[ 444.572053][ T29] ? __kasan_check_read+0x11/0x20
[ 444.577068][ T29] ? __kthread_parkme+0x142/0x180
[ 444.582088][ T29] kthread+0x281/0x320
[ 444.586162][ T29] ? __cfi_watchdog+0x10/0x10
[ 444.590837][ T29] ? __cfi_kthread+0x10/0x10
[ 444.595422][ T29] ret_from_fork+0x1f/0x30
[ 444.599833][ T29]
[ 444.602899][ T29] Sending NMI from CPU 1 to CPUs 0:
[ 444.608108][ C0] NMI backtrace for cpu 0
[ 444.608118][ C0] CPU: 0 PID: 376 Comm: syz.2.17 Not tainted syzkaller #0
[ 444.608132][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 444.608140][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x17/0x60
[ 444.608166][ C0] Code: 5d c3 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 48 8b 45 08 65 48 8b 0d f0 43 92 7e 65 8b 15 f1 43 92 7e <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 6c 0b 00 00
[ 444.608178][ C0] RSP: 0018:ffffc90000a76f40 EFLAGS: 00000286
[ 444.608191][ C0] RAX: ffffffff81e9158d RBX: ffff8881242662a0 RCX: ffff888110302880
[ 444.608202][ C0] RDX: 0000000080000000 RSI: ffff8881242662a0 RDI: 0000000000000002
[ 444.608212][ C0] RBP: ffffc90000a76f40 R08: ffff888111cc3738 R09: 0000000000000001
[ 444.608228][ C0] R10: ffffed10223986e8 R11: 1ffff110223986e7 R12: ffffc90000a770a0
[ 444.608239][ C0] R13: 0000000000000080 R14: 1ffff1102484cc59 R15: dffffc0000000000
[ 444.608249][ C0] FS: 000055555f958500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 444.608261][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 444.608275][ C0] CR2: 00007fff7eab7358 CR3: 000000010a410000 CR4: 00000000003506b0
[ 444.608288][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 444.608296][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 444.608305][ C0] Call Trace:
[ 444.608309][ C0]
[ 444.608314][ C0] ext4_mark_iloc_dirty+0x2d/0x1930
[ 444.608335][ C0] ? __cfi___ext4_journal_get_write_access+0x10/0x10
[ 444.608353][ C0] ? ext4_reserve_inode_write+0x240/0x2e0
[ 444.608373][ C0] __ext4_mark_inode_dirty+0x423/0x600
[ 444.608390][ C0] ext4_dirty_inode+0xbd/0x100
[ 444.608408][ C0] ? __cfi_ext4_dirty_inode+0x10/0x10
[ 444.608426][ C0] __mark_inode_dirty+0x203/0x9d0
[ 444.608443][ C0] ext4_xattr_block_set+0x186e/0x3270
[ 444.608468][ C0] ? ext4_xattr_block_find+0x310/0x310
[ 444.608487][ C0] ? ext4_xattr_block_find+0xf0/0x310
[ 444.608507][ C0] ext4_xattr_set_handle+0xbd5/0x12b0
[ 444.608529][ C0] ? __cfi_ext4_xattr_set_handle+0x10/0x10
[ 444.608547][ C0] ? selinux_inode_init_security+0x67d/0x950
[ 444.608564][ C0] ? __cfi_selinux_inode_init_security+0x10/0x10
[ 444.608584][ C0] ext4_initxattrs+0xa6/0x110
[ 444.608599][ C0] security_inode_init_security+0x28c/0x3a0
[ 444.608615][ C0] ? posix_acl_create+0x118/0x440
[ 444.608633][ C0] ? __cfi_ext4_initxattrs+0x10/0x10
[ 444.608648][ C0] ? __cfi_security_inode_init_security+0x10/0x10
[ 444.608664][ C0] ? dquot_alloc_inode+0x1d3/0x810
[ 444.608682][ C0] ? __cfi_inode_set_flags+0x10/0x10
[ 444.608701][ C0] ? __cfi_ext4_init_acl+0x10/0x10
[ 444.608716][ C0] ? _raw_spin_unlock+0x4c/0x70
[ 444.608732][ C0] ext4_init_security+0x34/0x40
[ 444.608747][ C0] __ext4_new_inode+0x2c29/0x3640
[ 444.608771][ C0] ? __cfi___ext4_new_inode+0x10/0x10
[ 444.608791][ C0] ? dquot_initialize+0x20/0x20
[ 444.608809][ C0] ? ext4_lookup+0x2ce/0x6d0
[ 444.608828][ C0] ext4_create+0x22a/0x460
[ 444.608847][ C0] ? __cfi_ext4_create+0x10/0x10
[ 444.608865][ C0] ? selinux_inode_create+0x22/0x30
[ 444.608879][ C0] ? security_inode_create+0xd2/0x120
[ 444.608894][ C0] ? __cfi_ext4_create+0x10/0x10
[ 444.608912][ C0] path_openat+0x11e3/0x2f50
[ 444.608933][ C0] ? do_filp_open+0x3c0/0x3c0
[ 444.608950][ C0] do_filp_open+0x1c1/0x3c0
[ 444.608965][ C0] ? __cfi_do_filp_open+0x10/0x10
[ 444.608983][ C0] ? alloc_fd+0x4e6/0x590
[ 444.608997][ C0] do_sys_openat2+0x185/0x7e0
[ 444.609015][ C0] ? __se_sys_futex+0x273/0x2e0
[ 444.609029][ C0] ? do_sys_open+0xe0/0xe0
[ 444.609046][ C0] ? __x64_sys_futex+0x100/0x100
[ 444.609059][ C0] ? do_user_addr_fault+0xd36/0x1050
[ 444.609079][ C0] __x64_sys_creat+0x8e/0xb0
[ 444.609097][ C0] x64_sys_call+0x116/0x9a0
[ 444.609114][ C0] do_syscall_64+0x4c/0xa0
[ 444.609129][ C0] ? clear_bhb_loop+0x30/0x80
[ 444.609148][ C0] ? clear_bhb_loop+0x30/0x80
[ 444.609168][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 444.609187][ C0] RIP: 0033:0x7fa67db8f749
[ 444.609199][ C0] 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
[ 444.609210][ C0] RSP: 002b:00007ffe3be7cbc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 444.609229][ C0] RAX: ffffffffffffffda RBX: 00007fa67dde5fa0 RCX: 00007fa67db8f749
[ 444.609240][ C0] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 444.609249][ C0] RBP: 00007fa67dc13f91 R08: 0000000000000000 R09: 0000000000000000
[ 444.609258][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 444.609266][ C0] R13: 00007fa67dde5fa0 R14: 00007fa67dde5fa0 R15: 0000000000000002
[ 444.609278][ C0]
[ 467.430115][ T29] INFO: task kworker/u4:4:348 blocked for more than 161 seconds.
[ 467.437875][ T29] Not tainted syzkaller #0
[ 467.442869][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 467.451672][ T29] task:kworker/u4:4 state:D stack:21472 pid:348 ppid:2 flags:0x00004000
[ 467.460923][ T29] Workqueue: events_unbound linkwatch_event
[ 467.466826][ T29] Call Trace:
[ 467.470107][ T29]
[ 467.473032][ T29] __schedule+0xb87/0x14e0
[ 467.477430][ T29] ? __sched_text_start+0x8/0x8
[ 468.430397][ T29] ? __mutex_add_waiter+0x17b/0x270
[ 468.435651][ T29] ? __kasan_check_write+0x14/0x20
[ 468.440838][ T29] ? kthread_data+0x50/0xc0
[ 468.445363][ T29] ? wq_worker_sleeping+0x64/0x280
[ 468.450513][ T29] schedule+0xbd/0x170
[ 468.454574][ T29] schedule_preempt_disabled+0x13/0x20
[ 468.460100][ T29] __mutex_lock+0x74a/0x16d0
[ 468.464702][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 468.471507][ T29] ? __kasan_check_write+0x14/0x20
[ 468.476608][ T29] ? __switch_to+0x51f/0xe30
[ 469.430185][ T29] ? __cfi___switch_to+0x10/0x10
[ 469.435164][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 469.440173][ T29] __mutex_lock_slowpath+0xe/0x10
[ 469.445310][ T29] mutex_lock+0xf8/0x1a0
[ 469.449555][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 469.454435][ T29] ? __schedule+0xb8f/0x14e0
[ 469.459031][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 469.464601][ T29] rtnl_lock+0x15/0x20
[ 469.468672][ T29] linkwatch_event+0xe/0x60
[ 469.473371][ T29] process_one_work+0x71f/0xc40
[ 469.478293][ T29] worker_thread+0xa29/0x11f0
[ 470.430899][ T29] ? _raw_spin_lock_irqsave+0xb0/0x110
[ 470.436402][ T29] ? __kthread_parkme+0x142/0x180
[ 470.441491][ T29] kthread+0x281/0x320
[ 470.445720][ T29] ? __cfi_worker_thread+0x10/0x10
[ 470.450870][ T29] ? __cfi_kthread+0x10/0x10
[ 470.455474][ T29] ret_from_fork+0x1f/0x30
[ 470.460034][ T29]
[ 470.463054][ T29] INFO: task syz-executor:398 blocked for more than 164 seconds.
[ 470.470774][ T29] Not tainted syzkaller #0
[ 470.475789][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 471.439922][ T29] task:syz-executor state:D stack:23264 pid:398 ppid:1 flags:0x00004004
[ 471.449158][ T29] Call Trace:
[ 471.452471][ T29]
[ 471.455398][ T29] __schedule+0xb87/0x14e0
[ 471.459795][ T29] ? __kasan_check_write+0x14/0x20
[ 471.464949][ T29] ? __sched_text_start+0x8/0x8
[ 471.469808][ T29] ? _raw_spin_unlock_irqrestore+0x5a/0x80
[ 471.475707][ T29] ? prepare_to_wait_event+0x40b/0x440
[ 472.430111][ T29] schedule+0xbd/0x170
[ 472.434297][ T29] synchronize_rcu_expedited+0x70e/0x810
[ 472.440006][ T29] ? kasan_quarantine_put+0x34/0x190
[ 472.445355][ T29] ? __cfi_synchronize_rcu_expedited+0x10/0x10
[ 472.451562][ T29] ? ____kasan_slab_free+0x13d/0x180
[ 472.456896][ T29] ? __kasan_slab_free+0x11/0x20
[ 472.461894][ T29] ? slab_free_freelist_hook+0xc2/0x190
[ 472.467530][ T29] ? __cfi_wait_rcu_exp_gp+0x10/0x10
[ 472.472871][ T29] ? __kmem_cache_free+0xb7/0x1b0
[ 472.477894][ T29] ? __kasan_check_write+0x14/0x20
[ 473.430013][ T29] ? kobject_put+0x1bb/0x280
[ 473.434634][ T29] ? __cfi_netdev_queue_release+0x10/0x10
[ 473.440421][ T29] ? __cfi_autoremove_wake_function+0x10/0x10
[ 473.446494][ T29] ? netdev_queue_update_kobjects+0x428/0x470
[ 473.452608][ T29] ? __x64_sys_sendto+0xe5/0x100
[ 473.457571][ T29] ? x64_sys_call+0x83/0x9a0
[ 473.462197][ T29] ? __kasan_check_read+0x11/0x20
[ 473.467219][ T29] netif_set_real_num_tx_queues+0x4c9/0x7f0
[ 473.473150][ T29] veth_newlink+0x874/0xbe0
[ 473.477656][ T29] ? __cfi_veth_newlink+0x10/0x10
[ 474.440317][ T29] ? rtnl_create_link+0x88d/0xb10
[ 474.445393][ T29] ? __cfi_veth_newlink+0x10/0x10
[ 474.450448][ T29] rtnl_newlink+0x14b9/0x2030
[ 474.455161][ T29] ? memcpy+0x56/0x70
[ 474.459140][ T29] ? __cfi_rtnl_newlink+0x10/0x10
[ 474.464231][ T29] ? selinux_capable+0x29c/0x380
[ 474.469166][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 474.474491][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 474.479342][ T29] ? ns_capable+0x8c/0xf0
[ 475.430276][ T29] ? netlink_net_capable+0x125/0x160
[ 475.435641][ T29] ? __cfi_rtnl_newlink+0x10/0x10
[ 475.440735][ T29] rtnetlink_rcv_msg+0x9f4/0xcf0
[ 475.445699][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 475.451210][ T29] ? kernel_text_address+0xa0/0xd0
[ 475.456464][ T29] ? __kernel_text_address+0xd/0x30
[ 475.461739][ T29] ? unwind_get_return_address+0x4d/0x90
[ 475.467392][ T29] ? memcpy+0x56/0x70
[ 475.471427][ T29] ? avc_has_perm_noaudit+0x2f4/0x460
[ 475.476905][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 476.440224][ T29] ? slab_post_alloc_hook+0x4f/0x2d0
[ 476.445641][ T29] ? kmem_cache_alloc_node+0x181/0x340
[ 476.451197][ T29] ? __alloc_skb+0xea/0x4b0
[ 476.455727][ T29] ? avc_has_perm+0x158/0x240
[ 476.460473][ T29] ? __alloc_skb+0x236/0x4b0
[ 476.465057][ T29] ? netlink_sendmsg+0x626/0xbc0
[ 476.470033][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 476.475055][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 477.430108][ T29] netlink_rcv_skb+0x1f2/0x440
[ 477.435030][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 477.440601][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 477.445916][ T29] ? __netlink_lookup+0x387/0x3b0
[ 477.451009][ T29] rtnetlink_rcv+0x1c/0x20
[ 477.455448][ T29] netlink_unicast+0x8ab/0xa30
[ 477.460275][ T29] netlink_sendmsg+0x8aa/0xbc0
[ 477.465040][ T29] ? kasan_save_alloc_info+0x25/0x30
[ 477.470378][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 477.475664][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 478.430151][ T29] __sys_sendto+0x464/0x5e0
[ 478.434759][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 478.439878][ T29] ? errseq_sample+0x44/0x70
[ 478.444538][ T29] ? __this_cpu_preempt_check+0x13/0x20
[ 478.450142][ T29] ? xfd_validate_state+0x70/0x150
[ 478.455253][ T29] __x64_sys_sendto+0xe5/0x100
[ 478.460057][ T29] x64_sys_call+0x83/0x9a0
[ 478.464483][ T29] do_syscall_64+0x4c/0xa0
[ 478.468877][ T29] ? clear_bhb_loop+0x30/0x80
[ 478.473600][ T29] ? clear_bhb_loop+0x30/0x80
[ 478.478284][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 479.439934][ T29] RIP: 0033:0x7f9e1af91583
[ 479.444380][ T29] RSP: 002b:00007ffdf3659ec8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 479.452882][ T29] RAX: ffffffffffffffda RBX: 00007f9e1bd14620 RCX: 00007f9e1af91583
[ 479.460907][ T29] RDX: 000000000000002c RSI: 00007f9e1bd14670 RDI: 0000000000000003
[ 479.468874][ T29] RBP: 0000000000000001 R08: 00007ffdf3659ee4 R09: 000000000000000c
[ 479.476865][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 480.431049][ T29] R13: 0000000000000000 R14: 00007f9e1bd14670 R15: 0000000000000000
[ 480.439046][ T29]
[ 480.442353][ T29] NMI backtrace for cpu 1
[ 480.446681][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted syzkaller #0
[ 480.453860][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 480.463890][ T29] Call Trace:
[ 480.467190][ T29]
[ 480.470109][ T29] __dump_stack+0x21/0x24
[ 480.474441][ T29] dump_stack_lvl+0xee/0x150
[ 480.479009][ T29] ? __cfi_dump_stack_lvl+0x8/0x8
[ 480.484017][ T29] dump_stack+0x15/0x24
[ 480.488174][ T29] nmi_cpu_backtrace+0x2b4/0x2c0
[ 480.493107][ T29] ? rcu_read_unlock_special+0xab/0x480
[ 480.498657][ T29] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 480.504123][ T29] ? __rcu_read_unlock+0xa0/0xa0
[ 480.509142][ T29] ? memcpy+0x56/0x70
[ 480.513115][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 480.519100][ T29] nmi_trigger_cpumask_backtrace+0x16b/0x3a0
[ 480.525076][ T29] arch_trigger_cpumask_backtrace+0x10/0x20
[ 480.530963][ T29] watchdog+0xd44/0xe80
[ 480.535119][ T29] ? __cfi_watchdog+0x10/0x10
[ 480.539791][ T29] ? __kasan_check_read+0x11/0x20
[ 480.544804][ T29] ? __kthread_parkme+0x142/0x180
[ 480.549818][ T29] kthread+0x281/0x320
[ 480.553877][ T29] ? __cfi_watchdog+0x10/0x10
[ 480.558547][ T29] ? __cfi_kthread+0x10/0x10
[ 480.563127][ T29] ret_from_fork+0x1f/0x30
[ 480.567543][ T29]
[ 480.570639][ T29] Sending NMI from CPU 1 to CPUs 0:
[ 480.575843][ C0] NMI backtrace for cpu 0
[ 480.575852][ C0] CPU: 0 PID: 376 Comm: syz.2.17 Not tainted syzkaller #0
[ 480.575866][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 480.575874][ C0] RIP: 0010:kasan_check_range+0x2/0x290
[ 480.575897][ C0] Code: c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc 90 90 90 90 90 90 90 90 90 90 90 b8 bf f3 05 3b b0 01 <48> 85 f6 0f 84 a9 01 00 00 55 48 89 e5 41 57 41 56 53 49 89 f8 49
[ 480.575908][ C0] RSP: 0018:ffffc90000a76ec8 EFLAGS: 00000246
[ 480.575921][ C0] RAX: ffffffff81e22c01 RBX: 1ffff110223986e7 RCX: ffffffff81e22d05
[ 480.575932][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888111cc3738
[ 480.575942][ C0] RBP: ffffc90000a76ed0 R08: dffffc0000000000 R09: ffffed10223986e8
[ 480.575952][ C0] R10: ffffed10223986e8 R11: 1ffff110223986e7 R12: 0000000000004000
[ 480.575963][ C0] R13: dffffc0000000000 R14: 0000000000000002 R15: ffff888111cc3738
[ 480.575973][ C0] FS: 000055555f958500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 480.575986][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 480.575996][ C0] CR2: 00007effef915000 CR3: 000000010a410000 CR4: 00000000003506b0
[ 480.576009][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 480.576017][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 480.576026][ C0] Call Trace:
[ 480.576030][ C0]
[ 480.576035][ C0] ? __kasan_check_read+0x11/0x20
[ 480.576048][ C0] __ext4_handle_dirty_metadata+0xf5/0x800
[ 480.576066][ C0] ext4_mark_iloc_dirty+0x1253/0x1930
[ 480.576085][ C0] ? __cfi___ext4_journal_get_write_access+0x10/0x10
[ 480.576104][ C0] __ext4_mark_inode_dirty+0x423/0x600
[ 480.576121][ C0] ext4_dirty_inode+0xbd/0x100
[ 480.576139][ C0] ? __cfi_ext4_dirty_inode+0x10/0x10
[ 480.576157][ C0] __mark_inode_dirty+0x203/0x9d0
[ 480.576174][ C0] ext4_xattr_block_set+0x167d/0x3270
[ 480.576199][ C0] ? ext4_xattr_block_find+0x310/0x310
[ 480.576219][ C0] ? ext4_xattr_block_find+0xf0/0x310
[ 480.576238][ C0] ext4_xattr_set_handle+0xbd5/0x12b0
[ 480.576260][ C0] ? __cfi_ext4_xattr_set_handle+0x10/0x10
[ 480.576278][ C0] ? selinux_inode_init_security+0x67d/0x950
[ 480.576296][ C0] ? __cfi_selinux_inode_init_security+0x10/0x10
[ 480.576318][ C0] ext4_initxattrs+0xa6/0x110
[ 480.576333][ C0] security_inode_init_security+0x28c/0x3a0
[ 480.576349][ C0] ? posix_acl_create+0x118/0x440
[ 480.576367][ C0] ? __cfi_ext4_initxattrs+0x10/0x10
[ 480.576382][ C0] ? __cfi_security_inode_init_security+0x10/0x10
[ 480.576399][ C0] ? dquot_alloc_inode+0x1d3/0x810
[ 480.576416][ C0] ? __cfi_inode_set_flags+0x10/0x10
[ 480.576434][ C0] ? __cfi_ext4_init_acl+0x10/0x10
[ 480.576449][ C0] ? _raw_spin_unlock+0x4c/0x70
[ 480.576467][ C0] ext4_init_security+0x34/0x40
[ 480.576481][ C0] __ext4_new_inode+0x2c29/0x3640
[ 480.576505][ C0] ? __cfi___ext4_new_inode+0x10/0x10
[ 480.576529][ C0] ? dquot_initialize+0x20/0x20
[ 480.576547][ C0] ? ext4_lookup+0x2ce/0x6d0
[ 480.576566][ C0] ext4_create+0x22a/0x460
[ 480.576586][ C0] ? __cfi_ext4_create+0x10/0x10
[ 480.576604][ C0] ? selinux_inode_create+0x22/0x30
[ 480.576618][ C0] ? security_inode_create+0xd2/0x120
[ 480.576633][ C0] ? __cfi_ext4_create+0x10/0x10
[ 480.576651][ C0] path_openat+0x11e3/0x2f50
[ 480.576672][ C0] ? do_filp_open+0x3c0/0x3c0
[ 480.576689][ C0] do_filp_open+0x1c1/0x3c0
[ 480.576704][ C0] ? __cfi_do_filp_open+0x10/0x10
[ 480.576723][ C0] ? alloc_fd+0x4e6/0x590
[ 480.576737][ C0] do_sys_openat2+0x185/0x7e0
[ 480.576755][ C0] ? __se_sys_futex+0x273/0x2e0
[ 480.576768][ C0] ? do_sys_open+0xe0/0xe0
[ 480.576785][ C0] ? __x64_sys_futex+0x100/0x100
[ 480.576798][ C0] ? do_user_addr_fault+0xd36/0x1050
[ 480.576818][ C0] __x64_sys_creat+0x8e/0xb0
[ 480.576837][ C0] x64_sys_call+0x116/0x9a0
[ 480.576853][ C0] do_syscall_64+0x4c/0xa0
[ 480.576869][ C0] ? clear_bhb_loop+0x30/0x80
[ 480.576888][ C0] ? clear_bhb_loop+0x30/0x80
[ 480.576907][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 480.576926][ C0] RIP: 0033:0x7fa67db8f749
[ 480.576938][ C0] 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
[ 480.576949][ C0] RSP: 002b:00007ffe3be7cbc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 480.576963][ C0] RAX: ffffffffffffffda RBX: 00007fa67dde5fa0 RCX: 00007fa67db8f749
[ 480.576973][ C0] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 480.576982][ C0] RBP: 00007fa67dc13f91 R08: 0000000000000000 R09: 0000000000000000
[ 480.576991][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 480.576999][ C0] R13: 00007fa67dde5fa0 R14: 00007fa67dde5fa0 R15: 0000000000000002
[ 480.577012][ C0]
[ 503.429915][ T29] INFO: task kworker/u4:4:348 blocked for more than 197 seconds.
[ 503.437661][ T29] Not tainted syzkaller #0
[ 503.442621][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 503.451296][ T29] task:kworker/u4:4 state:D stack:21472 pid:348 ppid:2 flags:0x00004000
[ 503.460562][ T29] Workqueue: events_unbound linkwatch_event
[ 503.466477][ T29] Call Trace:
[ 503.469742][ T29]
[ 503.472675][ T29] __schedule+0xb87/0x14e0
[ 503.477089][ T29] ? __sched_text_start+0x8/0x8
[ 504.430141][ T29] ? __mutex_add_waiter+0x17b/0x270
[ 504.435546][ T29] ? __kasan_check_write+0x14/0x20
[ 504.440809][ T29] ? kthread_data+0x50/0xc0
[ 504.445348][ T29] ? wq_worker_sleeping+0x64/0x280
[ 504.450532][ T29] schedule+0xbd/0x170
[ 504.454597][ T29] schedule_preempt_disabled+0x13/0x20
[ 504.460091][ T29] __mutex_lock+0x74a/0x16d0
[ 504.464679][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 504.471479][ T29] ? __kasan_check_write+0x14/0x20
[ 504.476588][ T29] ? __switch_to+0x51f/0xe30
[ 505.429994][ T29] ? __cfi___switch_to+0x10/0x10
[ 505.434976][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 505.439955][ T29] __mutex_lock_slowpath+0xe/0x10
[ 505.444994][ T29] mutex_lock+0xf8/0x1a0
[ 505.449291][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 505.454194][ T29] ? __schedule+0xb8f/0x14e0
[ 505.458823][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 505.464386][ T29] rtnl_lock+0x15/0x20
[ 505.468446][ T29] linkwatch_event+0xe/0x60
[ 505.472996][ T29] process_one_work+0x71f/0xc40
[ 505.477895][ T29] worker_thread+0xa29/0x11f0
[ 506.432991][ T29] ? _raw_spin_lock_irqsave+0xb0/0x110
[ 506.438491][ T29] ? __kthread_parkme+0x142/0x180
[ 506.443632][ T29] kthread+0x281/0x320
[ 506.447700][ T29] ? __cfi_worker_thread+0x10/0x10
[ 506.452841][ T29] ? __cfi_kthread+0x10/0x10
[ 506.457425][ T29] ret_from_fork+0x1f/0x30
[ 506.461855][ T29]
[ 506.464873][ T29] INFO: task syz-executor:398 blocked for more than 200 seconds.
[ 506.472582][ T29] Not tainted syzkaller #0
[ 506.477524][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 507.430162][ T29] task:syz-executor state:D stack:23264 pid:398 ppid:1 flags:0x00004004
[ 507.439742][ T29] Call Trace:
[ 507.443074][ T29]
[ 507.446064][ T29] __schedule+0xb87/0x14e0
[ 507.450505][ T29] ? __kasan_check_write+0x14/0x20
[ 507.455609][ T29] ? __sched_text_start+0x8/0x8
[ 507.460505][ T29] ? _raw_spin_unlock_irqrestore+0x5a/0x80
[ 507.466314][ T29] ? prepare_to_wait_event+0x40b/0x440
[ 507.471794][ T29] schedule+0xbd/0x170
[ 507.475867][ T29] synchronize_rcu_expedited+0x70e/0x810
[ 508.431245][ T29] ? kasan_quarantine_put+0x34/0x190
[ 508.436564][ T29] ? __cfi_synchronize_rcu_expedited+0x10/0x10
[ 508.442807][ T29] ? ____kasan_slab_free+0x13d/0x180
[ 508.448283][ T29] ? __kasan_slab_free+0x11/0x20
[ 508.453298][ T29] ? slab_free_freelist_hook+0xc2/0x190
[ 508.458901][ T29] ? __cfi_wait_rcu_exp_gp+0x10/0x10
[ 508.464217][ T29] ? __kmem_cache_free+0xb7/0x1b0
[ 508.469247][ T29] ? __kasan_check_write+0x14/0x20
[ 508.474398][ T29] ? kobject_put+0x1bb/0x280
[ 508.478994][ T29] ? __cfi_netdev_queue_release+0x10/0x10
[ 509.440017][ T29] ? __cfi_autoremove_wake_function+0x10/0x10
[ 509.446168][ T29] ? netdev_queue_update_kobjects+0x428/0x470
[ 509.452341][ T29] ? __x64_sys_sendto+0xe5/0x100
[ 509.457280][ T29] ? x64_sys_call+0x83/0x9a0
[ 509.462003][ T29] ? __kasan_check_read+0x11/0x20
[ 509.467027][ T29] netif_set_real_num_tx_queues+0x4c9/0x7f0
[ 509.472977][ T29] veth_newlink+0x874/0xbe0
[ 509.477475][ T29] ? __cfi_veth_newlink+0x10/0x10
[ 510.430295][ T29] ? rtnl_create_link+0x88d/0xb10
[ 510.435397][ T29] ? __cfi_veth_newlink+0x10/0x10
[ 510.440523][ T29] rtnl_newlink+0x14b9/0x2030
[ 510.445212][ T29] ? memcpy+0x56/0x70
[ 510.449171][ T29] ? __cfi_rtnl_newlink+0x10/0x10
[ 510.454244][ T29] ? selinux_capable+0x29c/0x380
[ 510.459185][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 510.464559][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 510.469415][ T29] ? ns_capable+0x8c/0xf0
[ 510.473743][ T29] ? netlink_net_capable+0x125/0x160
[ 510.479166][ T29] ? __cfi_rtnl_newlink+0x10/0x10
[ 511.440051][ T29] rtnetlink_rcv_msg+0x9f4/0xcf0
[ 511.445085][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 511.450637][ T29] ? kernel_text_address+0xa0/0xd0
[ 511.455749][ T29] ? __kernel_text_address+0xd/0x30
[ 511.460982][ T29] ? unwind_get_return_address+0x4d/0x90
[ 511.466608][ T29] ? memcpy+0x56/0x70
[ 511.470625][ T29] ? avc_has_perm_noaudit+0x2f4/0x460
[ 511.476000][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 512.430391][ T29] ? slab_post_alloc_hook+0x4f/0x2d0
[ 512.435758][ T29] ? kmem_cache_alloc_node+0x181/0x340
[ 512.441271][ T29] ? __alloc_skb+0xea/0x4b0
[ 512.445778][ T29] ? avc_has_perm+0x158/0x240
[ 512.450511][ T29] ? __alloc_skb+0x236/0x4b0
[ 512.455096][ T29] ? netlink_sendmsg+0x626/0xbc0
[ 512.460066][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 512.465086][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 512.470534][ T29] netlink_rcv_skb+0x1f2/0x440
[ 512.475291][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 513.430117][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 513.435593][ T29] ? __netlink_lookup+0x387/0x3b0
[ 513.440697][ T29] rtnetlink_rcv+0x1c/0x20
[ 513.445113][ T29] netlink_unicast+0x8ab/0xa30
[ 513.449926][ T29] netlink_sendmsg+0x8aa/0xbc0
[ 513.454701][ T29] ? kasan_save_alloc_info+0x25/0x30
[ 513.460015][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 513.465329][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 513.470855][ T29] __sys_sendto+0x464/0x5e0
[ 513.475404][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 514.440490][ T29] ? errseq_sample+0x44/0x70
[ 514.445315][ T29] ? __this_cpu_preempt_check+0x13/0x20
[ 514.450963][ T29] ? xfd_validate_state+0x70/0x150
[ 514.456072][ T29] __x64_sys_sendto+0xe5/0x100
[ 514.460865][ T29] x64_sys_call+0x83/0x9a0
[ 514.465276][ T29] do_syscall_64+0x4c/0xa0
[ 514.469674][ T29] ? clear_bhb_loop+0x30/0x80
[ 514.474399][ T29] ? clear_bhb_loop+0x30/0x80
[ 514.479092][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 515.430067][ T29] RIP: 0033:0x7f9e1af91583
[ 515.434503][ T29] RSP: 002b:00007ffdf3659ec8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 515.442961][ T29] RAX: ffffffffffffffda RBX: 00007f9e1bd14620 RCX: 00007f9e1af91583
[ 515.450990][ T29] RDX: 000000000000002c RSI: 00007f9e1bd14670 RDI: 0000000000000003
[ 515.458956][ T29] RBP: 0000000000000001 R08: 00007ffdf3659ee4 R09: 000000000000000c
[ 515.466961][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 515.474941][ T29] R13: 0000000000000000 R14: 00007f9e1bd14670 R15: 0000000000000000
[ 516.432124][ T29]
[ 516.435186][ T29] INFO: task syz-executor:400 blocked for more than 147 seconds.
[ 516.443097][ T29] Not tainted syzkaller #0
[ 516.448067][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 516.456749][ T29] task:syz-executor state:D stack:27936 pid:400 ppid:1 flags:0x00004004
[ 516.466020][ T29] Call Trace:
[ 516.469332][ T29]
[ 516.472275][ T29] __schedule+0xb87/0x14e0
[ 516.476772][ T29] ? arch_stack_walk+0x118/0x150
[ 517.430224][ T29] ? __sched_text_start+0x8/0x8
[ 517.435107][ T29] ? __mutex_add_waiter+0xc7/0x270
[ 517.440256][ T29] ? __kasan_check_write+0x14/0x20
[ 517.445361][ T29] ? trace_contention_begin+0xa0/0xa0
[ 517.450767][ T29] schedule+0xbd/0x170
[ 517.454829][ T29] schedule_preempt_disabled+0x13/0x20
[ 517.460336][ T29] __mutex_lock+0x74a/0x16d0
[ 517.464919][ T29] ? __slab_alloc+0x5e/0xa0
[ 517.469416][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 517.476227][ T29] ? selinux_capable+0x29c/0x380
[ 518.431006][ T29] ? __cfi_selinux_capable+0x10/0x10
[ 518.436337][ T29] ? prep_compound_page+0x1cb/0x4a0
[ 518.441657][ T29] ? prep_new_page+0x3b/0x110
[ 518.446397][ T29] ? cap_capable+0x1aa/0x230
[ 518.451006][ T29] __mutex_lock_slowpath+0xe/0x10
[ 518.456289][ T29] mutex_lock+0xf8/0x1a0
[ 518.460536][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 518.465383][ T29] ? ns_capable+0x8c/0xf0
[ 518.469690][ T29] ? netlink_net_capable+0x125/0x160
[ 518.475063][ T29] rtnetlink_rcv_msg+0x8c6/0xcf0
[ 519.429896][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 519.435400][ T29] ? kernel_text_address+0xa0/0xd0
[ 519.440785][ T29] ? __kernel_text_address+0xd/0x30
[ 519.445995][ T29] ? unwind_get_return_address+0x4d/0x90
[ 519.451644][ T29] ? memcpy+0x56/0x70
[ 519.455659][ T29] ? avc_has_perm_noaudit+0x2f4/0x460
[ 519.461089][ T29] ? __cfi_avc_has_perm_noaudit+0x10/0x10
[ 519.466949][ T29] ? avc_has_perm+0x158/0x240
[ 519.471649][ T29] ? __alloc_skb+0x236/0x4b0
[ 519.476228][ T29] ? netlink_sendmsg+0x626/0xbc0
[ 520.430247][ T29] ? __cfi_avc_has_perm+0x10/0x10
[ 520.435359][ T29] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 520.440867][ T29] netlink_rcv_skb+0x1f2/0x440
[ 520.445627][ T29] ? __cfi_rtnetlink_rcv_msg+0x10/0x10
[ 520.451124][ T29] ? __cfi_netlink_rcv_skb+0x10/0x10
[ 520.456403][ T29] ? __netlink_lookup+0x387/0x3b0
[ 520.461462][ T29] rtnetlink_rcv+0x1c/0x20
[ 520.465877][ T29] netlink_unicast+0x8ab/0xa30
[ 520.470675][ T29] netlink_sendmsg+0x8aa/0xbc0
[ 520.475432][ T29] ? __cfi_netlink_sendmsg+0x10/0x10
[ 521.430115][ T29] ? security_socket_sendmsg+0x93/0xb0
[ 521.435642][ T29] __sys_sendto+0x464/0x5e0
[ 521.440222][ T29] ? __cfi___sys_sendto+0x10/0x10
[ 521.445269][ T29] ? do_user_addr_fault+0x9ac/0x1050
[ 521.450591][ T29] __x64_sys_sendto+0xe5/0x100
[ 521.455347][ T29] x64_sys_call+0x83/0x9a0
[ 521.459739][ T29] do_syscall_64+0x4c/0xa0
[ 521.464190][ T29] ? clear_bhb_loop+0x30/0x80
[ 521.468863][ T29] ? clear_bhb_loop+0x30/0x80
[ 521.473584][ T29] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 521.479477][ T29] RIP: 0033:0x7f1a8ff91583
[ 522.440700][ T29] RSP: 002b:00007ffd52a73d68 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 522.449127][ T29] RAX: ffffffffffffffda RBX: 00007f1a90d14620 RCX: 00007f1a8ff91583
[ 522.457181][ T29] RDX: 0000000000000028 RSI: 00007f1a90d14670 RDI: 0000000000000003
[ 522.465203][ T29] RBP: 0000000000000001 R08: 00007ffd52a73d84 R09: 000000000000000c
[ 522.473202][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 523.429896][ T29] R13: 0000000000000000 R14: 00007f1a90d14670 R15: 0000000000000000
[ 523.437935][ T29]
[ 523.440973][ T29] NMI backtrace for cpu 0
[ 523.445294][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted syzkaller #0
[ 523.452467][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 523.462505][ T29] Call Trace:
[ 523.465763][ T29]
[ 523.468672][ T29] __dump_stack+0x21/0x24
[ 523.472985][ T29] dump_stack_lvl+0xee/0x150
[ 523.477587][ T29] ? __cfi_dump_stack_lvl+0x8/0x8
[ 523.482599][ T29] dump_stack+0x15/0x24
[ 523.486737][ T29] nmi_cpu_backtrace+0x2b4/0x2c0
[ 523.491660][ T29] ? rcu_read_unlock_special+0xab/0x480
[ 523.497191][ T29] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 523.502630][ T29] ? __rcu_read_unlock+0xa0/0xa0
[ 523.507558][ T29] ? memcpy+0x56/0x70
[ 523.511520][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 523.517486][ T29] nmi_trigger_cpumask_backtrace+0x16b/0x3a0
[ 523.523446][ T29] arch_trigger_cpumask_backtrace+0x10/0x20
[ 523.529327][ T29] watchdog+0xd44/0xe80
[ 523.533559][ T29] ? __cfi_watchdog+0x10/0x10
[ 523.538217][ T29] ? __kasan_check_read+0x11/0x20
[ 523.543219][ T29] ? __kthread_parkme+0x142/0x180
[ 523.548225][ T29] kthread+0x281/0x320
[ 523.552275][ T29] ? __cfi_watchdog+0x10/0x10
[ 523.556939][ T29] ? __cfi_kthread+0x10/0x10
[ 523.561520][ T29] ret_from_fork+0x1f/0x30
[ 523.565924][ T29]
[ 523.569014][ T29] Sending NMI from CPU 0 to CPUs 1:
[ 523.574223][ C1] NMI backtrace for cpu 1
[ 523.574232][ C1] CPU: 1 PID: 393 Comm: syz.3.18 Not tainted syzkaller #0
[ 523.574246][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 523.574254][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60
[ 523.574280][ C1] Code: f0 43 92 7e 65 8b 15 f1 43 92 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 6c 0b 00 00 00 74 2c 8b 91 48 0b 00 00 <83> fa 02 75 21 48 8b 91 50 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 4c
[ 523.574291][ C1] RSP: 0018:ffffc90000b96f30 EFLAGS: 00000246
[ 523.574305][ C1] RAX: ffffffff819d702f RBX: ffffea0004a888c0 RCX: ffff888116ff2880
[ 523.574316][ C1] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea0004a888c0
[ 523.574326][ C1] RBP: ffffc90000b96f30 R08: dffffc0000000000 R09: ffffed102486e076
[ 523.574337][ C1] R10: ffffed102486e076 R11: 1ffff1102486e075 R12: ffff888124370358
[ 523.574348][ C1] R13: ffff888124370348 R14: 0000000000035708 R15: 0000000000000400
[ 523.574358][ C1] FS: 00005555601e4500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 523.574371][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 523.574381][ C1] CR2: 00007f2c12315000 CR3: 000000010a4b9000 CR4: 00000000003506a0
[ 523.574394][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 523.574402][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 523.574411][ C1] Call Trace:
[ 523.574415][ C1]
[ 523.574420][ C1] mark_page_accessed+0xf/0x70
[ 523.574470][ C1] __find_get_block+0xafd/0xee0
[ 523.574506][ C1] ? __cfi___find_get_block+0x10/0x10
[ 523.574523][ C1] __getblk_gfp+0x2e/0x7d0
[ 523.574537][ C1] ? __cfi_wake_up_var+0x10/0x10
[ 523.574559][ C1] ? __kasan_check_write+0x14/0x20
[ 523.574573][ C1] __ext4_sb_bread_gfp+0x76/0x210
[ 523.574589][ C1] ext4_sb_bread+0x28/0x30
[ 523.574601][ C1] ext4_xattr_block_set+0xcd5/0x3270
[ 523.574625][ C1] ? ext4_xattr_block_find+0x310/0x310
[ 523.574645][ C1] ? ext4_xattr_block_find+0xf0/0x310
[ 523.574668][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 523.574690][ C1] ? __cfi_ext4_xattr_set_handle+0x10/0x10
[ 523.574708][ C1] ? selinux_inode_init_security+0x67d/0x950
[ 523.574725][ C1] ? __cfi_selinux_inode_init_security+0x10/0x10
[ 523.574741][ C1] ext4_initxattrs+0xa6/0x110
[ 523.574756][ C1] security_inode_init_security+0x28c/0x3a0
[ 523.574772][ C1] ? posix_acl_create+0x118/0x440
[ 523.574795][ C1] ? __cfi_ext4_initxattrs+0x10/0x10
[ 523.574810][ C1] ? __cfi_security_inode_init_security+0x10/0x10
[ 523.574827][ C1] ? dquot_alloc_inode+0x1d3/0x810
[ 523.574844][ C1] ? __cfi_inode_set_flags+0x10/0x10
[ 523.574863][ C1] ? __cfi_ext4_init_acl+0x10/0x10
[ 523.574878][ C1] ? _raw_spin_unlock+0x4c/0x70
[ 523.574895][ C1] ext4_init_security+0x34/0x40
[ 523.574909][ C1] __ext4_new_inode+0x2c29/0x3640
[ 523.574933][ C1] ? __cfi___ext4_new_inode+0x10/0x10
[ 523.574954][ C1] ? dquot_initialize+0x20/0x20
[ 523.574971][ C1] ? ext4_lookup+0x2ce/0x6d0
[ 523.574990][ C1] ext4_create+0x22a/0x460
[ 523.575010][ C1] ? __cfi_ext4_create+0x10/0x10
[ 523.575028][ C1] ? selinux_inode_create+0x22/0x30
[ 523.575042][ C1] ? security_inode_create+0xd2/0x120
[ 523.575057][ C1] ? __cfi_ext4_create+0x10/0x10
[ 523.575075][ C1] path_openat+0x11e3/0x2f50
[ 523.575096][ C1] ? do_filp_open+0x3c0/0x3c0
[ 523.575113][ C1] do_filp_open+0x1c1/0x3c0
[ 523.575128][ C1] ? __cfi_do_filp_open+0x10/0x10
[ 523.575147][ C1] ? alloc_fd+0x4e6/0x590
[ 523.575160][ C1] do_sys_openat2+0x185/0x7e0
[ 523.575178][ C1] ? __se_sys_futex+0x273/0x2e0
[ 523.575192][ C1] ? do_sys_open+0xe0/0xe0
[ 523.575209][ C1] ? __x64_sys_futex+0x100/0x100
[ 523.575222][ C1] ? do_user_addr_fault+0xd36/0x1050
[ 523.575242][ C1] __x64_sys_creat+0x8e/0xb0
[ 523.575260][ C1] x64_sys_call+0x116/0x9a0
[ 523.575277][ C1] do_syscall_64+0x4c/0xa0
[ 523.575292][ C1] ? clear_bhb_loop+0x30/0x80
[ 523.575311][ C1] ? clear_bhb_loop+0x30/0x80
[ 523.575331][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 523.575350][ C1] RIP: 0033:0x7f17b1f8f749
[ 523.575363][ C1] 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
[ 523.575374][ C1] RSP: 002b:00007fffbe7bbe88 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 523.575388][ C1] RAX: ffffffffffffffda RBX: 00007f17b21e5fa0 RCX: 00007f17b1f8f749
[ 523.575399][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 523.575408][ C1] RBP: 00007f17b2013f91 R08: 0000000000000000 R09: 0000000000000000
[ 523.575416][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 523.575425][ C1] R13: 00007f17b21e5fa0 R14: 00007f17b21e5fa0 R15: 0000000000000002
[ 523.575437][ C1]
[ 546.429859][ T29] INFO: task kworker/0:0:6 blocked for more than 156 seconds.
[ 546.437353][ T29] Not tainted syzkaller #0
[ 546.442463][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 546.451180][ T29] task:kworker/0:0 state:D stack:28608 pid:6 ppid:2 flags:0x00004000
[ 546.460455][ T29] Workqueue: ipv6_addrconf addrconf_verify_work
[ 546.466718][ T29] Call Trace:
[ 546.470024][ T29]
[ 546.472943][ T29] __schedule+0xb87/0x14e0
[ 546.477340][ T29] ? __sched_text_start+0x8/0x8
[ 547.430158][ T29] ? _raw_spin_unlock_irq+0x4d/0x70
[ 547.435399][ T29] ? wq_worker_sleeping+0x1d9/0x280
[ 547.440728][ T29] schedule+0xbd/0x170
[ 547.444850][ T29] schedule_preempt_disabled+0x13/0x20
[ 547.450389][ T29] __mutex_lock+0x74a/0x16d0
[ 547.455027][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 547.461807][ T29] ? __mod_timer+0x856/0xbf0
[ 547.466403][ T29] ? add_timer+0x68/0x80
[ 547.470643][ T29] ? __kasan_check_write+0x14/0x20
[ 547.475751][ T29] __mutex_lock_slowpath+0xe/0x10
[ 548.430210][ T29] mutex_lock+0xf8/0x1a0
[ 548.434555][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 548.439554][ T29] ? _raw_spin_lock_irq+0x8f/0xe0
[ 548.444641][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 548.450232][ T29] rtnl_lock+0x15/0x20
[ 548.454295][ T29] addrconf_verify_work+0x19/0x30
[ 548.459294][ T29] process_one_work+0x71f/0xc40
[ 548.464164][ T29] worker_thread+0xa29/0x11f0
[ 548.468869][ T29] kthread+0x281/0x320
[ 548.472984][ T29] ? __cfi_worker_thread+0x10/0x10
[ 548.478085][ T29] ? __cfi_kthread+0x10/0x10
[ 549.440183][ T29] ret_from_fork+0x1f/0x30
[ 549.444699][ T29]
[ 549.447734][ T29] INFO: task kworker/1:2:346 blocked for more than 159 seconds.
[ 549.455411][ T29] Not tainted syzkaller #0
[ 549.460382][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 549.469131][ T29] task:kworker/1:2 state:D stack:24544 pid:346 ppid:2 flags:0x00004000
[ 549.478418][ T29] Workqueue: ipv6_addrconf addrconf_verify_work
[ 550.430283][ T29] Call Trace:
[ 550.433595][ T29]
[ 550.436519][ T29] __schedule+0xb87/0x14e0
[ 550.441047][ T29] ? __sched_text_start+0x8/0x8
[ 550.445905][ T29] ? __mutex_add_waiter+0xc7/0x270
[ 550.451042][ T29] ? __kasan_check_write+0x14/0x20
[ 550.456167][ T29] ? _raw_spin_unlock_irq+0x4d/0x70
[ 550.461394][ T29] ? wq_worker_sleeping+0x1d9/0x280
[ 550.466588][ T29] schedule+0xbd/0x170
[ 550.470668][ T29] schedule_preempt_disabled+0x13/0x20
[ 550.476122][ T29] __mutex_lock+0x74a/0x16d0
[ 551.430241][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 551.437047][ T29] ? __kasan_check_write+0x14/0x20
[ 551.442219][ T29] ? __switch_to+0x51f/0xe30
[ 551.446855][ T29] ? __cfi___switch_to+0x10/0x10
[ 551.451873][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 551.456759][ T29] __mutex_lock_slowpath+0xe/0x10
[ 551.461826][ T29] mutex_lock+0xf8/0x1a0
[ 551.466090][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 551.470990][ T29] ? __schedule+0xb8f/0x14e0
[ 551.475580][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 552.430359][ T29] rtnl_lock+0x15/0x20
[ 552.434487][ T29] addrconf_verify_work+0x19/0x30
[ 552.439644][ T29] process_one_work+0x71f/0xc40
[ 552.444534][ T29] worker_thread+0xa29/0x11f0
[ 552.449214][ T29] ? _raw_spin_lock_irqsave+0xb0/0x110
[ 552.454856][ T29] ? __kthread_parkme+0x142/0x180
[ 552.459934][ T29] kthread+0x281/0x320
[ 552.463995][ T29] ? __cfi_worker_thread+0x10/0x10
[ 552.469080][ T29] ? __cfi_kthread+0x10/0x10
[ 552.473713][ T29] ret_from_fork+0x1f/0x30
[ 552.478127][ T29]
[ 553.429944][ T29] INFO: task kworker/u4:4:348 blocked for more than 247 seconds.
[ 553.437679][ T29] Not tainted syzkaller #0
[ 553.442717][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 553.451445][ T29] task:kworker/u4:4 state:D stack:21472 pid:348 ppid:2 flags:0x00004000
[ 553.460729][ T29] Workqueue: events_unbound linkwatch_event
[ 553.466627][ T29] Call Trace:
[ 553.469943][ T29]
[ 553.472864][ T29] __schedule+0xb87/0x14e0
[ 553.477263][ T29] ? __sched_text_start+0x8/0x8
[ 554.431036][ T29] ? __mutex_add_waiter+0x17b/0x270
[ 554.436281][ T29] ? __kasan_check_write+0x14/0x20
[ 554.441496][ T29] ? kthread_data+0x50/0xc0
[ 554.446060][ T29] ? wq_worker_sleeping+0x64/0x280
[ 554.451216][ T29] schedule+0xbd/0x170
[ 554.455392][ T29] schedule_preempt_disabled+0x13/0x20
[ 554.460926][ T29] __mutex_lock+0x74a/0x16d0
[ 554.465553][ T29] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 554.472334][ T29] ? __kasan_check_write+0x14/0x20
[ 554.477440][ T29] ? __switch_to+0x51f/0xe30
[ 555.430378][ T29] ? __cfi___switch_to+0x10/0x10
[ 555.435359][ T29] ? _raw_spin_unlock+0x4c/0x70
[ 555.440327][ T29] __mutex_lock_slowpath+0xe/0x10
[ 555.445357][ T29] mutex_lock+0xf8/0x1a0
[ 555.449668][ T29] ? __cfi_mutex_lock+0x10/0x10
[ 555.454606][ T29] ? __schedule+0xb8f/0x14e0
[ 555.459204][ T29] ? __cfi__raw_spin_lock_irq+0x10/0x10
[ 555.464832][ T29] rtnl_lock+0x15/0x20
[ 555.468904][ T29] linkwatch_event+0xe/0x60
[ 555.473422][ T29] process_one_work+0x71f/0xc40
[ 555.478270][ T29] worker_thread+0xa29/0x11f0
[ 556.431027][ T29] ? _raw_spin_lock_irqsave+0xb0/0x110
[ 556.436537][ T29] ? __kthread_parkme+0x142/0x180
[ 556.441685][ T29] kthread+0x281/0x320
[ 556.445759][ T29] ? __cfi_worker_thread+0x10/0x10
[ 556.450899][ T29] ? __cfi_kthread+0x10/0x10
[ 556.455488][ T29] ret_from_fork+0x1f/0x30
[ 556.459967][ T29]
[ 556.462992][ T29] NMI backtrace for cpu 0
[ 556.467303][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted syzkaller #0
[ 556.474478][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 556.484509][ T29] Call Trace:
[ 556.487768][ T29]
[ 556.490677][ T29] __dump_stack+0x21/0x24
[ 556.494985][ T29] dump_stack_lvl+0xee/0x150
[ 556.499548][ T29] ? __cfi_dump_stack_lvl+0x8/0x8
[ 556.504546][ T29] dump_stack+0x15/0x24
[ 556.508674][ T29] nmi_cpu_backtrace+0x2b4/0x2c0
[ 556.513589][ T29] ? rcu_read_unlock_special+0xab/0x480
[ 556.519124][ T29] ? __cfi_nmi_cpu_backtrace+0x10/0x10
[ 556.524569][ T29] ? __rcu_read_unlock+0xa0/0xa0
[ 556.529496][ T29] ? memcpy+0x56/0x70
[ 556.533448][ T29] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10
[ 556.539402][ T29] nmi_trigger_cpumask_backtrace+0x16b/0x3a0
[ 556.545365][ T29] arch_trigger_cpumask_backtrace+0x10/0x20
[ 556.551244][ T29] watchdog+0xd44/0xe80
[ 556.555378][ T29] ? __cfi_watchdog+0x10/0x10
[ 556.560035][ T29] ? __kasan_check_read+0x11/0x20
[ 556.565030][ T29] ? __kthread_parkme+0x142/0x180
[ 556.570029][ T29] kthread+0x281/0x320
[ 556.574084][ T29] ? __cfi_watchdog+0x10/0x10
[ 556.578740][ T29] ? __cfi_kthread+0x10/0x10
[ 556.583303][ T29] ret_from_fork+0x1f/0x30
[ 556.587698][ T29]
[ 556.590740][ T29] Sending NMI from CPU 0 to CPUs 1:
[ 556.595934][ C1] NMI backtrace for cpu 1
[ 556.595944][ C1] CPU: 1 PID: 393 Comm: syz.3.18 Not tainted syzkaller #0
[ 556.595959][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 556.595967][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60
[ 556.595995][ C1] Code: f0 43 92 7e 65 8b 15 f1 43 92 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 6c 0b 00 00 00 74 2c 8b 91 48 0b 00 00 <83> fa 02 75 21 48 8b 91 50 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 4c
[ 556.596007][ C1] RSP: 0018:ffffc90000b97148 EFLAGS: 00000246
[ 556.596020][ C1] RAX: ffffffff81f4d416 RBX: 0000000000002000 RCX: ffff888116ff2880
[ 556.596031][ C1] RDX: 0000000000000000 RSI: 0000000000000071 RDI: ffff888117840000
[ 556.596040][ C1] RBP: ffffc90000b97148 R08: dffffc0000000000 R09: ffffed1022eb83ed
[ 556.596051][ C1] R10: ffffed1022eb83ed R11: 1ffff11022eb83ec R12: ffff888124370348
[ 556.596062][ C1] R13: ffffc90000b973b0 R14: 0000000000000071 R15: ffff888117840000
[ 556.596072][ C1] FS: 00005555601e4500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 556.596085][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 556.596095][ C1] CR2: 00007f5730f15000 CR3: 000000010a4b9000 CR4: 00000000003506a0
[ 556.596108][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 556.596116][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 556.596125][ C1] Call Trace:
[ 556.596130][ C1]
[ 556.596135][ C1] ext4_sb_bread+0x16/0x30
[ 556.596150][ C1] ext4_xattr_block_set+0xcd5/0x3270
[ 556.596174][ C1] ? ext4_xattr_block_find+0x310/0x310
[ 556.596193][ C1] ? ext4_xattr_block_find+0xf0/0x310
[ 556.596213][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 556.596239][ C1] ? __cfi_ext4_xattr_set_handle+0x10/0x10
[ 556.596258][ C1] ? selinux_inode_init_security+0x67d/0x950
[ 556.596275][ C1] ? __cfi_selinux_inode_init_security+0x10/0x10
[ 556.596291][ C1] ext4_initxattrs+0xa6/0x110
[ 556.596306][ C1] security_inode_init_security+0x28c/0x3a0
[ 556.596323][ C1] ? posix_acl_create+0x118/0x440
[ 556.596341][ C1] ? __cfi_ext4_initxattrs+0x10/0x10
[ 556.596356][ C1] ? __cfi_security_inode_init_security+0x10/0x10
[ 556.596373][ C1] ? dquot_alloc_inode+0x1d3/0x810
[ 556.596390][ C1] ? __cfi_inode_set_flags+0x10/0x10
[ 556.596409][ C1] ? __cfi_ext4_init_acl+0x10/0x10
[ 556.596423][ C1] ? _raw_spin_unlock+0x4c/0x70
[ 556.596441][ C1] ext4_init_security+0x34/0x40
[ 556.596455][ C1] __ext4_new_inode+0x2c29/0x3640
[ 556.596480][ C1] ? __cfi___ext4_new_inode+0x10/0x10
[ 556.596500][ C1] ? dquot_initialize+0x20/0x20
[ 556.596518][ C1] ? ext4_lookup+0x2ce/0x6d0
[ 556.596537][ C1] ext4_create+0x22a/0x460
[ 556.596556][ C1] ? __cfi_ext4_create+0x10/0x10
[ 556.596575][ C1] ? selinux_inode_create+0x22/0x30
[ 556.596589][ C1] ? security_inode_create+0xd2/0x120
[ 556.596604][ C1] ? __cfi_ext4_create+0x10/0x10
[ 556.596622][ C1] path_openat+0x11e3/0x2f50
[ 556.596642][ C1] ? do_filp_open+0x3c0/0x3c0
[ 556.596659][ C1] do_filp_open+0x1c1/0x3c0
[ 556.596675][ C1] ? __cfi_do_filp_open+0x10/0x10
[ 556.596693][ C1] ? alloc_fd+0x4e6/0x590
[ 556.596707][ C1] do_sys_openat2+0x185/0x7e0
[ 556.596724][ C1] ? __se_sys_futex+0x273/0x2e0
[ 556.596738][ C1] ? do_sys_open+0xe0/0xe0
[ 556.596754][ C1] ? __x64_sys_futex+0x100/0x100
[ 556.596768][ C1] ? do_user_addr_fault+0xd36/0x1050
[ 556.596788][ C1] __x64_sys_creat+0x8e/0xb0
[ 556.596807][ C1] x64_sys_call+0x116/0x9a0
[ 556.596823][ C1] do_syscall_64+0x4c/0xa0
[ 556.596839][ C1] ? clear_bhb_loop+0x30/0x80
[ 556.596858][ C1] ? clear_bhb_loop+0x30/0x80
[ 556.596877][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 556.596902][ C1] RIP: 0033:0x7f17b1f8f749
[ 556.596914][ C1] 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
[ 556.596924][ C1] RSP: 002b:00007fffbe7bbe88 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 556.596938][ C1] RAX: ffffffffffffffda RBX: 00007f17b21e5fa0 RCX: 00007f17b1f8f749
[ 556.596948][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 556.596957][ C1] RBP: 00007f17b2013f91 R08: 0000000000000000 R09: 0000000000000000
[ 556.596966][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 556.596974][ C1] R13: 00007f17b21e5fa0 R14: 00007f17b21e5fa0 R15: 0000000000000002
[ 556.596986][ C1]