Warning: Permanently added '10.128.1.131' (ED25519) to the list of known hosts.
2025/11/27 05:40:29 parsed 1 programs
[ 271.872883][ T30] audit: type=1400 audit(1764222029.541:64): avc: denied { node_bind } for pid=281 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1
[ 271.893721][ T30] audit: type=1400 audit(1764222029.541:65): avc: denied { module_request } for pid=281 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1
[ 272.827528][ T30] audit: type=1400 audit(1764222030.491:66): avc: denied { mounton } for pid=290 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[ 272.830305][ T290] cgroup: Unknown subsys name 'net'
[ 272.850296][ T30] audit: type=1400 audit(1764222030.491:67): avc: denied { mount } for pid=290 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 272.877622][ T30] audit: type=1400 audit(1764222030.521:68): avc: denied { unmount } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 272.877933][ T290] cgroup: Unknown subsys name 'devices'
[ 273.022183][ T290] cgroup: Unknown subsys name 'hugetlb'
[ 273.027939][ T290] cgroup: Unknown subsys name 'rlimit'
[ 273.265275][ T30] audit: type=1400 audit(1764222030.931:69): avc: denied { setattr } for pid=290 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1
[ 273.288493][ T30] audit: type=1400 audit(1764222030.931:70): avc: denied { create } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 273.294991][ T292] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 273.309238][ T30] audit: type=1400 audit(1764222030.931:71): avc: denied { write } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 273.338000][ T30] audit: type=1400 audit(1764222030.931:72): avc: denied { read } for pid=290 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 273.358280][ T30] audit: type=1400 audit(1764222030.931:73): avc: denied { mounton } for pid=290 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
Setting up swapspace version 1, size = 127995904 bytes
[ 273.431220][ T290] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 273.914340][ T295] request_module fs-gadgetfs succeeded, but still no fs?
[ 274.541739][ T337] bridge0: port 1(bridge_slave_0) entered blocking state
[ 274.548798][ T337] bridge0: port 1(bridge_slave_0) entered disabled state
[ 274.556353][ T337] device bridge_slave_0 entered promiscuous mode
[ 274.563272][ T337] bridge0: port 2(bridge_slave_1) entered blocking state
[ 274.570338][ T337] bridge0: port 2(bridge_slave_1) entered disabled state
[ 274.577706][ T337] device bridge_slave_1 entered promiscuous mode
[ 274.635310][ T337] bridge0: port 2(bridge_slave_1) entered blocking state
[ 274.642398][ T337] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 274.649702][ T337] bridge0: port 1(bridge_slave_0) entered blocking state
[ 274.656734][ T337] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 274.680176][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 274.687870][ T10] bridge0: port 1(bridge_slave_0) entered disabled state
[ 274.695584][ T10] bridge0: port 2(bridge_slave_1) entered disabled state
[ 274.704881][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 274.713590][ T10] bridge0: port 1(bridge_slave_0) entered blocking state
[ 274.720662][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 274.729406][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 274.737866][ T10] bridge0: port 2(bridge_slave_1) entered blocking state
[ 274.744939][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 274.758339][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 274.772976][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 274.792797][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 274.808841][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 274.817028][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 274.824656][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 274.832897][ T337] device veth0_vlan entered promiscuous mode
[ 274.852674][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 274.861853][ T337] device veth1_macvtap entered promiscuous mode
[ 274.871585][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 274.891517][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
2025/11/27 05:40:32 executed programs: 0
[ 275.340647][ T362] bridge0: port 1(bridge_slave_0) entered blocking state
[ 275.347701][ T362] bridge0: port 1(bridge_slave_0) entered disabled state
[ 275.355252][ T362] device bridge_slave_0 entered promiscuous mode
[ 275.362276][ T362] bridge0: port 2(bridge_slave_1) entered blocking state
[ 275.369311][ T362] bridge0: port 2(bridge_slave_1) entered disabled state
[ 275.376773][ T362] device bridge_slave_1 entered promiscuous mode
[ 275.425830][ T362] bridge0: port 2(bridge_slave_1) entered blocking state
[ 275.432923][ T362] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 275.440264][ T362] bridge0: port 1(bridge_slave_0) entered blocking state
[ 275.447310][ T362] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 275.466029][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 275.473795][ T10] bridge0: port 1(bridge_slave_0) entered disabled state
[ 275.481635][ T10] bridge0: port 2(bridge_slave_1) entered disabled state
[ 275.495958][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 275.504373][ T10] bridge0: port 1(bridge_slave_0) entered blocking state
[ 275.511452][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 275.520593][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 275.528800][ T10] bridge0: port 2(bridge_slave_1) entered blocking state
[ 275.535882][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 275.553076][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 275.562284][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 275.575763][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 275.591562][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 275.599800][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 275.607227][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 275.619591][ T362] device veth0_vlan entered promiscuous mode
[ 275.630623][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 275.639969][ T362] device veth1_macvtap entered promiscuous mode
[ 275.649275][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 275.659630][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 275.689294][ T372] loop2: detected capacity change from 0 to 1024
[ 275.720190][ T372] =======================================================
[ 275.720190][ T372] WARNING: The mand mount option has been deprecated and
[ 275.720190][ T372] and is ignored by this kernel. Remove the mand
[ 275.720190][ T372] option from the mount to silence this warning.
[ 275.720190][ T372] =======================================================
[ 275.756146][ T372] EXT4-fs (loop2): Ignoring removed oldalloc option
[ 275.762973][ T372] EXT4-fs (loop2): Ignoring removed orlov option
[ 275.781709][ T372] EXT4-fs (loop2): mounted filesystem without journal. Opts: debug_want_extra_isize=0x0000000000000080,grpjquota=,oldalloc,errors=remount-ro,orlov,usrquota,stripe=0x0000000000000622,. Quota mode: writeback.
[ 276.030976][ T8] device bridge_slave_1 left promiscuous mode
[ 276.037241][ T8] bridge0: port 2(bridge_slave_1) entered disabled state
[ 276.045125][ T8] device bridge_slave_0 left promiscuous mode
[ 276.051763][ T8] bridge0: port 1(bridge_slave_0) entered disabled state
[ 276.060280][ T8] device veth1_macvtap left promiscuous mode
[ 276.066378][ T8] device veth0_vlan left promiscuous mode
[ 277.459667][ C0] sched: RT throttling activated
[ 290.751750][ T378] bridge0: port 1(bridge_slave_0) entered blocking state
[ 290.758832][ T378] bridge0: port 1(bridge_slave_0) entered disabled state
[ 290.766599][ T378] device bridge_slave_0 entered promiscuous mode
[ 290.773895][ T378] bridge0: port 2(bridge_slave_1) entered blocking state
[ 290.781076][ T378] bridge0: port 2(bridge_slave_1) entered disabled state
[ 290.788608][ T378] device bridge_slave_1 entered promiscuous mode
[ 290.852210][ T378] bridge0: port 2(bridge_slave_1) entered blocking state
[ 290.859291][ T378] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 290.866630][ T378] bridge0: port 1(bridge_slave_0) entered blocking state
[ 290.873675][ T378] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 290.898006][ T8] bridge0: port 1(bridge_slave_0) entered disabled state
[ 290.905599][ T8] bridge0: port 2(bridge_slave_1) entered disabled state
[ 290.914030][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 290.921785][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 290.941732][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 290.951055][ T8] bridge0: port 1(bridge_slave_0) entered blocking state
[ 290.958211][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 290.965955][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 290.975909][ T8] bridge0: port 2(bridge_slave_1) entered blocking state
[ 290.982979][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 290.990778][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 290.998928][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 291.015879][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 291.026779][ T378] device veth0_vlan entered promiscuous mode
[ 291.033481][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 291.048649][ T378] device veth1_macvtap entered promiscuous mode
[ 291.056145][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 291.065308][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 291.073089][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 291.089806][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
2025/11/27 05:40:48 executed programs: 3
[ 291.098441][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 291.134976][ T389] loop3: detected capacity change from 0 to 1024
[ 291.193859][ T389] EXT4-fs (loop3): Ignoring removed oldalloc option
[ 291.200517][ T389] EXT4-fs (loop3): Ignoring removed orlov option
[ 291.228369][ T389] EXT4-fs (loop3): mounted filesystem without journal. Opts: debug_want_extra_isize=0x0000000000000080,grpjquota=,oldalloc,errors=remount-ro,orlov,usrquota,stripe=0x0000000000000622,. Quota mode: writeback.
[ 391.239631][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 391.246665][ C1] (detected by 1, t=10002 jiffies, g=1933, q=941)
[ 391.253184][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10001 (4294976327-4294966326), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 391.266565][ C1] rcu: rcu_preempt kthread starved for 10002 jiffies! g1933 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[ 391.277685][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 391.287753][ C1] rcu: RCU grace-period kthread stack dump:
[ 391.293652][ C1] task:rcu_preempt state:R running task stack:28752 pid: 14 ppid: 2 flags:0x00004000
[ 391.304463][ C1] Call Trace:
[ 391.307756][ C1]
[ 391.310702][ C1] __schedule+0xb6e/0x14c0
[ 391.315156][ C1] ? release_firmware_map_entry+0x190/0x190
[ 391.321060][ C1] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 391.326879][ C1] ? __mod_timer+0x7ae/0xb30
[ 391.331486][ C1] schedule+0x11e/0x1e0
[ 391.335656][ C1] schedule_timeout+0x12c/0x2e0
[ 391.340520][ C1] ? console_conditional_schedule+0x30/0x30
[ 391.346424][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110
[ 391.351899][ C1] ? update_process_times+0x200/0x200
[ 391.357282][ C1] ? prepare_to_swait_event+0x308/0x320
[ 391.362841][ C1] rcu_gp_fqs_loop+0x293/0xf60
[ 391.367618][ C1] ? rcu_cleanup_dead_rnp+0x180/0x180
[ 391.373005][ C1] ? debug_smp_processor_id+0x17/0x20
[ 391.378391][ C1] ? __note_gp_changes+0x4e2/0x9e0
[ 391.383511][ C1] ? rcu_gp_init+0xc00/0xc00
[ 391.388126][ C1] ? _raw_spin_unlock_irq+0x4e/0x70
[ 391.393344][ C1] ? rcu_gp_init+0x9a7/0xc00
[ 391.398037][ C1] rcu_gp_kthread+0x98/0x330
[ 391.402644][ C1] ? wake_nocb_gp+0x1d0/0x1d0
[ 391.407336][ C1] ? __kasan_check_read+0x11/0x20
[ 391.412373][ C1] ? __kthread_parkme+0xac/0x200
[ 391.417322][ C1] ? preempt_count_add+0x90/0x1b0
[ 391.422354][ C1] kthread+0x411/0x500
[ 391.426448][ C1] ? wake_nocb_gp+0x1d0/0x1d0
[ 391.431137][ C1] ? kthread_blkcg+0xd0/0xd0
[ 391.435745][ C1] ret_from_fork+0x1f/0x30
[ 391.440182][ C1]
[ 391.443218][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 391.449556][ C1] NMI backtrace for cpu 1
[ 391.453894][ C1] CPU: 1 PID: 389 Comm: syz.3.18 Not tainted syzkaller #0
[ 391.461025][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 391.471203][ C1] Call Trace:
[ 391.474508][ C1]
[ 391.477440][ C1] __dump_stack+0x21/0x30
[ 391.481772][ C1] dump_stack_lvl+0xee/0x150
[ 391.486360][ C1] ? show_regs_print_info+0x20/0x20
[ 391.491562][ C1] dump_stack+0x15/0x20
[ 391.495718][ C1] nmi_cpu_backtrace+0x2b4/0x2c0
[ 391.500669][ C1] ? nmi_trigger_cpumask_backtrace+0x240/0x240
[ 391.506825][ C1] ? load_image+0x3a0/0x3a0
[ 391.511334][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 391.517491][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 391.523656][ C1] nmi_trigger_cpumask_backtrace+0x138/0x240
[ 391.529644][ C1] arch_trigger_cpumask_backtrace+0x10/0x20
[ 391.535561][ C1] rcu_check_gp_kthread_starvation+0x1e0/0x260
[ 391.541734][ C1] print_other_cpu_stall+0xded/0xfd0
[ 391.547019][ C1] ? print_cpu_stall+0x600/0x600
[ 391.551958][ C1] ? _raw_spin_lock+0x8e/0xe0
[ 391.556641][ C1] ? cgroup_rstat_updated+0xf5/0x370
[ 391.561942][ C1] ? debug_smp_processor_id+0x17/0x20
[ 391.567313][ C1] rcu_sched_clock_irq+0x8a3/0x12b0
[ 391.572508][ C1] ? rcu_boost_kthread_setaffinity+0x310/0x310
[ 391.578659][ C1] ? hrtimer_run_queues+0x166/0x430
[ 391.583861][ C1] update_process_times+0x198/0x200
[ 391.589064][ C1] tick_sched_timer+0x17c/0x240
[ 391.593917][ C1] ? tick_setup_sched_timer+0x450/0x450
[ 391.599481][ C1] __hrtimer_run_queues+0x3b5/0x9e0
[ 391.604686][ C1] ? hrtimer_interrupt+0x8c0/0x8c0
[ 391.609802][ C1] ? ktime_get_update_offsets_now+0x2fa/0x310
[ 391.615881][ C1] hrtimer_interrupt+0x3c7/0x8c0
[ 391.620847][ C1] __sysvec_apic_timer_interrupt+0xfa/0x3e0
[ 391.626755][ C1] sysvec_apic_timer_interrupt+0xa4/0xc0
[ 391.632418][ C1]
[ 391.635452][ C1]
[ 391.638377][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 391.644551][ C1] RIP: 0010:__kasan_check_read+0x12/0x20
[ 391.650273][ C1] Code: eb 0a 48 c7 c7 89 4b db 85 48 89 de e8 17 ce f8 02 45 31 ff eb d1 00 00 55 48 89 e5 89 f6 48 8b 4d 08 31 d2 e8 bf ed ff ff 5d 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 89 f6 48 8b
[ 391.669907][ C1] RSP: 0018:ffffc90002d06c58 EFLAGS: 00000256
[ 391.675979][ C1] RAX: ffffffff8191ba01 RBX: dffffc0000000000 RCX: ffffffff8191ba40
[ 391.683947][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0004b48bc0
[ 391.692005][ C1] RBP: ffffc90002d06d10 R08: dffffc0000000000 R09: fffff94000969179
[ 391.699994][ C1] R10: fffff94000969179 R11: 1ffffd4000969178 R12: dffffc0000000000
[ 391.708056][ C1] R13: 1ffff920005a0d90 R14: ffffea0004b48bc8 R15: ffffea0004b48bc0
[ 391.716031][ C1] ? mark_page_accessed+0x201/0x8d0
[ 391.721233][ C1] ? mark_page_accessed+0x240/0x8d0
[ 391.726427][ C1] ? mark_page_accessed+0x240/0x8d0
[ 391.731619][ C1] ? __activate_page+0xd40/0xd40
[ 391.736553][ C1] __find_get_block+0xafd/0xee0
[ 391.741401][ C1] ? write_boundary_block+0x140/0x140
[ 391.746771][ C1] ? finish_task_switch+0x209/0x780
[ 391.751969][ C1] ? __switch_to_asm+0x3a/0x60
[ 391.756727][ C1] __getblk_gfp+0x30/0x7d0
[ 391.761144][ C1] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20
[ 391.767298][ C1] ? ext4_get_group_desc+0x2ad/0x320
[ 391.772595][ C1] __ext4_get_inode_loc+0x461/0xcd0
[ 391.777829][ C1] ? __kasan_check_read+0x11/0x20
[ 391.782877][ C1] ? ext4_get_inode_loc+0x130/0x130
[ 391.788102][ C1] ? __kasan_check_write+0x14/0x20
[ 391.793303][ C1] ? _raw_spin_lock+0x8e/0xe0
[ 391.798002][ C1] ? _raw_spin_trylock_bh+0x130/0x130
[ 391.803474][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1/0x90
[ 391.809648][ C1] ext4_reserve_inode_write+0x16c/0x320
[ 391.815202][ C1] __ext4_mark_inode_dirty+0xb7/0x610
[ 391.820573][ C1] ? ext4_journal_check_start+0x172/0x240
[ 391.826306][ C1] ext4_dirty_inode+0xbd/0x100
[ 391.831068][ C1] ? __ext4_expand_extra_isize+0x3e0/0x3e0
[ 391.836984][ C1] __mark_inode_dirty+0x1f5/0x9c0
[ 391.842009][ C1] ext4_xattr_block_set+0x13db/0x2cb0
[ 391.847384][ C1] ? ext4_xattr_block_find+0x4f0/0x4f0
[ 391.852841][ C1] ? ext4_xattr_block_find+0xf1/0x4f0
[ 391.858214][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 391.863595][ C1] ? ext4_xattr_set_entry+0x37d0/0x37d0
[ 391.869141][ C1] ? selinux_inode_free_security+0x210/0x210
[ 391.875118][ C1] ext4_initxattrs+0xa6/0x110
[ 391.879793][ C1] security_inode_init_security+0x254/0x370
[ 391.885685][ C1] ? posix_acl_create+0x118/0x440
[ 391.890797][ C1] ? ext4_init_security+0x40/0x40
[ 391.895822][ C1] ? security_dentry_create_files_as+0xc0/0xc0
[ 391.902112][ C1] ? dquot_alloc_inode+0x1c2/0x7d0
[ 391.907342][ C1] ? __ext4_set_acl+0x600/0x600
[ 391.912199][ C1] ? prandom_u32+0x24d/0x290
[ 391.916795][ C1] ext4_init_security+0x34/0x40
[ 391.921666][ C1] __ext4_new_inode+0x2c41/0x3690
[ 391.926698][ C1] ? ext4_has_group_desc_csum+0x1f0/0x1f0
[ 391.932428][ C1] ? dquot_initialize+0x20/0x20
[ 391.937282][ C1] ? ext4_lookup+0x427/0x840
[ 391.941890][ C1] ? ext4_add_entry+0xf40/0xf40
[ 391.946745][ C1] ? may_create+0x377/0x460
[ 391.951243][ C1] ext4_create+0x22a/0x460
[ 391.955665][ C1] ? ext4_lookup+0x840/0x840
[ 391.960398][ C1] ? selinux_inode_create+0x22/0x30
[ 391.965621][ C1] ? security_inode_create+0xbd/0x110
[ 391.971013][ C1] ? ext4_lookup+0x840/0x840
[ 391.975630][ C1] path_openat+0x11ae/0x2f10
[ 391.980233][ C1] ? do_filp_open+0x3e0/0x3e0
[ 391.984909][ C1] ? expand_files+0xde/0x8e0
[ 391.989543][ C1] do_filp_open+0x1b3/0x3e0
[ 391.994044][ C1] ? vfs_tmpfile+0x2d0/0x2d0
[ 391.998645][ C1] do_sys_openat2+0x14c/0x7b0
[ 392.003324][ C1] ? __se_sys_futex+0x139/0x310
[ 392.008182][ C1] ? do_sys_open+0xe0/0xe0
[ 392.012601][ C1] ? __x64_sys_futex+0x100/0x100
[ 392.017568][ C1] __x64_sys_creat+0x8e/0xb0
[ 392.022159][ C1] x64_sys_call+0x94a/0x9a0
[ 392.026660][ C1] do_syscall_64+0x4c/0xa0
[ 392.031104][ C1] ? clear_bhb_loop+0x50/0xa0
[ 392.036302][ C1] ? clear_bhb_loop+0x50/0xa0
[ 392.040977][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 392.046960][ C1] RIP: 0033:0x7f6a596c0749
[ 392.051396][ 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
[ 392.071018][ C1] RSP: 002b:00007ffef98980b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 392.079432][ C1] RAX: ffffffffffffffda RBX: 00007f6a59916fa0 RCX: 00007f6a596c0749
[ 392.087402][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 392.095379][ C1] RBP: 00007f6a59744f91 R08: 0000000000000000 R09: 0000000000000000
[ 392.103369][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 392.111348][ C1] R13: 00007f6a59916fa0 R14: 00007f6a59916fa0 R15: 0000000000000002
[ 392.119327][ C1]
[ 439.449661][ T31] INFO: task kworker/u4:3:309 blocked for more than 125 seconds.
[ 439.457447][ T31] Not tainted syzkaller #0
[ 439.462766][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 439.471612][ T31] task:kworker/u4:3 state:D stack:24864 pid: 309 ppid: 2 flags:0x00004000
[ 439.480880][ T31] Workqueue: events_unbound linkwatch_event
[ 439.486840][ T31] Call Trace:
[ 439.490264][ T31]
[ 439.493222][ T31] __schedule+0xb6e/0x14c0
[ 439.497691][ T31] ? release_firmware_map_entry+0x190/0x190
[ 440.450796][ T31] ? __mutex_add_waiter+0x17b/0x270
[ 440.456059][ T31] ? __kasan_check_write+0x14/0x20
[ 440.461419][ T31] ? kthread_data+0x50/0xc0
[ 440.465953][ T31] ? wq_worker_sleeping+0x60/0x200
[ 440.471109][ T31] schedule+0x11e/0x1e0
[ 440.475337][ T31] schedule_preempt_disabled+0x13/0x20
[ 440.480870][ T31] __mutex_lock+0x7b6/0x11b0
[ 440.485523][ T31] ? __update_load_avg_cfs_rq+0xaf/0x2f0
[ 440.491228][ T31] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 440.498011][ T31] ? __kasan_check_write+0x14/0x20
[ 441.449910][ T31] ? __switch_to+0x51d/0xe20
[ 441.454590][ T31] __mutex_lock_slowpath+0xe/0x10
[ 441.459744][ T31] mutex_lock+0x100/0x1a0
[ 441.464225][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 441.470887][ T31] ? __schedule+0xb76/0x14c0
[ 441.475498][ T31] rtnl_lock+0x15/0x20
[ 441.479729][ T31] linkwatch_event+0xe/0x60
[ 441.484362][ T31] process_one_work+0x6be/0xba0
[ 441.489219][ T31] worker_thread+0xa59/0x1200
[ 441.493937][ T31] ? __kthread_parkme+0xac/0x200
[ 441.498904][ T31] kthread+0x411/0x500
[ 442.450064][ T31] ? worker_clr_flags+0x190/0x190
[ 442.455300][ T31] ? kthread_blkcg+0xd0/0xd0
[ 442.460363][ T31] ret_from_fork+0x1f/0x30
[ 442.465444][ T31]
[ 442.468539][ T31] INFO: task syz-executor:395 blocked for more than 128 seconds.
[ 442.476407][ T31] Not tainted syzkaller #0
[ 442.481481][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 442.490474][ T31] task:syz-executor state:D stack:22976 pid: 395 ppid: 1 flags:0x00004004
[ 443.449794][ T31] Call Trace:
[ 443.453143][ T31]
[ 443.456122][ T31] __schedule+0xb6e/0x14c0
[ 443.460630][ T31] ? release_firmware_map_entry+0x190/0x190
[ 443.466570][ T31] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 443.472475][ T31] ? prepare_to_wait_event+0x40b/0x440
[ 443.477965][ T31] schedule+0x11e/0x1e0
[ 443.482168][ T31] synchronize_rcu_expedited+0x45c/0x5b0
[ 443.487827][ T31] ? synchronize_rcu+0x110/0x110
[ 443.493169][ T31] ? __kasan_slab_free+0x11/0x20
[ 443.498460][ T31] ? slab_free_freelist_hook+0xc2/0x190
[ 444.449939][ T31] ? rcu_exp_handler+0x370/0x370
[ 444.454955][ T31] ? kfree+0xc4/0x270
[ 444.458965][ T31] ? kfree_const+0x39/0x40
[ 444.463464][ T31] ? __kasan_check_write+0x14/0x20
[ 444.468893][ T31] ? kobject_put+0x1a8/0x270
[ 444.473615][ T31] ? store_rps_dev_flow_table_cnt+0x2e0/0x2e0
[ 444.479779][ T31] ? kobject_put+0x214/0x270
[ 444.484395][ T31] ? io_schedule+0xe0/0xe0
[ 444.488830][ T31] ? netdev_queue_update_kobjects+0x3c8/0x3e0
[ 444.495067][ T31] ? __kasan_check_read+0x11/0x20
[ 445.449690][ T31] netif_set_real_num_tx_queues+0x48a/0x780
[ 445.455651][ T31] ? linkwatch_fire_event+0x307/0x380
[ 445.461149][ T31] veth_newlink+0x9bc/0xda0
[ 445.465710][ T31] ? veth_validate+0x200/0x200
[ 445.470545][ T31] ? rtnl_create_link+0x7a4/0x9d0
[ 445.475704][ T31] ? veth_validate+0x200/0x200
[ 445.480603][ T31] rtnl_newlink+0x112d/0x17b0
[ 445.485312][ T31] ? rtnl_setlink+0x400/0x400
[ 445.490048][ T31] ? memcpy+0x56/0x70
[ 445.494065][ T31] ? __kasan_check_write+0x14/0x20
[ 445.499540][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 446.460344][ T31] ? ns_capable+0x8c/0xf0
[ 446.464922][ T31] ? netlink_net_capable+0x125/0x160
[ 446.470320][ T31] ? rtnl_setlink+0x400/0x400
[ 446.475020][ T31] rtnetlink_rcv_msg+0x9e4/0xb90
[ 446.480008][ T31] ? rtnetlink_bind+0x80/0x80
[ 446.484757][ T31] ? memcpy+0x56/0x70
[ 446.488757][ T31] ? avc_has_perm_noaudit+0x2f4/0x460
[ 446.494179][ T31] ? arch_stack_walk+0xee/0x140
[ 446.499266][ T31] ? avc_denied+0x1b0/0x1b0
[ 447.449782][ T31] ? stack_trace_save+0x98/0xe0
[ 447.454947][ T31] ? avc_has_perm+0x158/0x240
[ 447.460442][ T31] ? avc_has_perm_noaudit+0x460/0x460
[ 447.465839][ T31] ? do_syscall_64+0x4c/0xa0
[ 447.470474][ T31] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 447.475979][ T31] netlink_rcv_skb+0x1e0/0x430
[ 447.480790][ T31] ? rtnetlink_bind+0x80/0x80
[ 447.485484][ T31] ? netlink_ack+0xb60/0xb60
[ 447.490107][ T31] ? __netlink_lookup+0x387/0x3b0
[ 447.495239][ T31] rtnetlink_rcv+0x1c/0x20
[ 448.450044][ T31] netlink_unicast+0x876/0xa40
[ 448.455264][ T31] netlink_sendmsg+0x86a/0xb70
[ 448.460121][ T31] ? netlink_getsockopt+0x530/0x530
[ 448.465418][ T31] ? security_socket_sendmsg+0x82/0xa0
[ 448.470946][ T31] __sys_sendto+0x423/0x580
[ 448.475480][ T31] ? __ia32_sys_getpeername+0x90/0x90
[ 448.481022][ T31] ? alloc_empty_file_noaccount+0x80/0x80
[ 448.486786][ T31] __x64_sys_sendto+0xe5/0x100
[ 448.491618][ T31] x64_sys_call+0x178/0x9a0
[ 448.496147][ T31] do_syscall_64+0x4c/0xa0
[ 449.450072][ T31] ? clear_bhb_loop+0x50/0xa0
[ 449.454813][ T31] ? clear_bhb_loop+0x50/0xa0
[ 449.459529][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 449.465550][ T31] RIP: 0033:0x7f344c503583
[ 449.470011][ T31] RSP: 002b:00007fff32275ff8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 449.478440][ T31] RAX: ffffffffffffffda RBX: 00007f344d286620 RCX: 00007f344c503583
[ 449.486471][ T31] RDX: 000000000000002c RSI: 00007f344d286670 RDI: 0000000000000003
[ 449.494524][ T31] RBP: 0000000000000001 R08: 00007fff32276014 R09: 000000000000000c
[ 450.449822][ T31] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 450.457872][ T31] R13: 0000000000000000 R14: 00007f344d286670 R15: 0000000000000000
[ 450.465982][ T31]
[ 450.469108][ T31] NMI backtrace for cpu 0
[ 450.473464][ T31] CPU: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0
[ 450.480674][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 450.490725][ T31] Call Trace:
[ 450.494023][ T31]
[ 450.496947][ T31] __dump_stack+0x21/0x30
[ 450.501275][ T31] dump_stack_lvl+0xee/0x150
[ 450.505858][ T31] ? show_regs_print_info+0x20/0x20
[ 450.511131][ T31] dump_stack+0x15/0x20
[ 450.515315][ T31] nmi_cpu_backtrace+0x2b4/0x2c0
[ 450.520252][ T31] ? rcu_read_unlock_special+0xab/0x460
[ 450.525792][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240
[ 450.532035][ T31] ? __rcu_read_unlock+0xa0/0xa0
[ 450.536968][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 450.543173][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 450.549239][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240
[ 450.555213][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 450.561234][ T31] watchdog+0xd64/0xea0
[ 450.565470][ T31] ? hungtask_pm_notify+0x50/0x50
[ 450.570489][ T31] ? __kasan_check_read+0x11/0x20
[ 450.575541][ T31] ? __kthread_parkme+0xac/0x200
[ 450.580472][ T31] ? preempt_count_add+0x90/0x1b0
[ 450.585493][ T31] kthread+0x411/0x500
[ 450.589651][ T31] ? hungtask_pm_notify+0x50/0x50
[ 450.594681][ T31] ? kthread_blkcg+0xd0/0xd0
[ 450.599277][ T31] ret_from_fork+0x1f/0x30
[ 450.603689][ T31]
[ 450.606789][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 450.612034][ C1] NMI backtrace for cpu 1
[ 450.612044][ C1] CPU: 1 PID: 389 Comm: syz.3.18 Not tainted syzkaller #0
[ 450.612061][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 450.612070][ C1] RIP: 0010:__ext4_journal_get_write_access+0x128/0x6c0
[ 450.612094][ C1] Code: 28 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 0b a3 d5 ff 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 ee a2 d5 ff 48 8b 1b 4d 8d b4 24 c8 03 00 00 4c
[ 450.612108][ C1] RSP: 0018:ffffc90002d07100 EFLAGS: 00000246
[ 450.612123][ C1] RAX: 1ffff11021261187 RBX: ffff888109308c38 RCX: ffff8881125d8000
[ 450.612136][ C1] RDX: 0000000000000000 RSI: 0000000000000803 RDI: ffffffff85e27d53
[ 450.612147][ C1] RBP: ffffc90002d071d0 R08: ffff88810cd933f0 R09: 0000000000000001
[ 450.612158][ C1] R10: ffffed10219b2622 R11: 1ffff110219b2621 R12: ffff888112a0e000
[ 450.612171][ C1] R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88810cd933f0
[ 450.612182][ C1] FS: 000055556ee9c500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 450.612210][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 450.612220][ C1] CR2: 00007ffee2ec0958 CR3: 0000000128b85000 CR4: 00000000003506a0
[ 450.612234][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 450.612244][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 450.612253][ C1] Call Trace:
[ 450.612258][ C1]
[ 450.612265][ C1] ? __ext4_journal_ensure_credits+0x430/0x430
[ 450.612282][ C1] ? ext4_dirty_inode+0xd1/0x100
[ 450.612299][ C1] ? __ext4_expand_extra_isize+0x3e0/0x3e0
[ 450.612315][ C1] ? __mark_inode_dirty+0x25c/0x9c0
[ 450.612334][ C1] ext4_xattr_block_set+0x140f/0x2cb0
[ 450.612357][ C1] ? ext4_xattr_block_find+0x4f0/0x4f0
[ 450.612374][ C1] ? ext4_xattr_block_find+0xf1/0x4f0
[ 450.612392][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 450.612412][ C1] ? ext4_xattr_set_entry+0x37d0/0x37d0
[ 450.612431][ C1] ? selinux_inode_free_security+0x210/0x210
[ 450.612450][ C1] ext4_initxattrs+0xa6/0x110
[ 450.612465][ C1] security_inode_init_security+0x254/0x370
[ 450.612483][ C1] ? posix_acl_create+0x118/0x440
[ 450.612498][ C1] ? ext4_init_security+0x40/0x40
[ 450.612513][ C1] ? security_dentry_create_files_as+0xc0/0xc0
[ 450.612531][ C1] ? dquot_alloc_inode+0x1c2/0x7d0
[ 450.612548][ C1] ? __ext4_set_acl+0x600/0x600
[ 450.612562][ C1] ? prandom_u32+0x24d/0x290
[ 450.612576][ C1] ext4_init_security+0x34/0x40
[ 450.612591][ C1] __ext4_new_inode+0x2c41/0x3690
[ 450.612608][ C1] ? ext4_has_group_desc_csum+0x1f0/0x1f0
[ 450.612623][ C1] ? dquot_initialize+0x20/0x20
[ 450.612639][ C1] ? ext4_lookup+0x427/0x840
[ 450.612659][ C1] ? ext4_add_entry+0xf40/0xf40
[ 450.612673][ C1] ? may_create+0x377/0x460
[ 450.612687][ C1] ext4_create+0x22a/0x460
[ 450.612702][ C1] ? ext4_lookup+0x840/0x840
[ 450.612716][ C1] ? selinux_inode_create+0x22/0x30
[ 450.612732][ C1] ? security_inode_create+0xbd/0x110
[ 450.612748][ C1] ? ext4_lookup+0x840/0x840
[ 450.612762][ C1] path_openat+0x11ae/0x2f10
[ 450.612781][ C1] ? do_filp_open+0x3e0/0x3e0
[ 450.612797][ C1] ? expand_files+0xde/0x8e0
[ 450.612811][ C1] do_filp_open+0x1b3/0x3e0
[ 450.612826][ C1] ? vfs_tmpfile+0x2d0/0x2d0
[ 450.612845][ C1] do_sys_openat2+0x14c/0x7b0
[ 450.612862][ C1] ? __se_sys_futex+0x139/0x310
[ 450.612879][ C1] ? do_sys_open+0xe0/0xe0
[ 450.612896][ C1] ? __x64_sys_futex+0x100/0x100
[ 450.612913][ C1] __x64_sys_creat+0x8e/0xb0
[ 450.612931][ C1] x64_sys_call+0x94a/0x9a0
[ 450.612946][ C1] do_syscall_64+0x4c/0xa0
[ 450.612963][ C1] ? clear_bhb_loop+0x50/0xa0
[ 450.612977][ C1] ? clear_bhb_loop+0x50/0xa0
[ 450.612991][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 450.613009][ C1] RIP: 0033:0x7f6a596c0749
[ 450.613023][ 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
[ 450.613035][ C1] RSP: 002b:00007ffef98980b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 450.613050][ C1] RAX: ffffffffffffffda RBX: 00007f6a59916fa0 RCX: 00007f6a596c0749
[ 450.613061][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 450.613071][ C1] RBP: 00007f6a59744f91 R08: 0000000000000000 R09: 0000000000000000
[ 450.613081][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 450.613090][ C1] R13: 00007f6a59916fa0 R14: 00007f6a59916fa0 R15: 0000000000000002
[ 450.613103][ C1]
[ 473.449909][ T31] INFO: task kworker/u4:3:309 blocked for more than 159 seconds.
[ 473.457834][ T31] Not tainted syzkaller #0
[ 473.462850][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 473.471592][ T31] task:kworker/u4:3 state:D stack:24864 pid: 309 ppid: 2 flags:0x00004000
[ 473.480834][ T31] Workqueue: events_unbound linkwatch_event
[ 473.486762][ T31] Call Trace:
[ 473.490076][ T31]
[ 473.493021][ T31] __schedule+0xb6e/0x14c0
[ 473.497611][ T31] ? release_firmware_map_entry+0x190/0x190
[ 474.451126][ T31] ? __mutex_add_waiter+0x17b/0x270
[ 474.456403][ T31] ? __kasan_check_write+0x14/0x20
[ 474.461600][ T31] ? kthread_data+0x50/0xc0
[ 474.466134][ T31] ? wq_worker_sleeping+0x60/0x200
[ 474.471326][ T31] schedule+0x11e/0x1e0
[ 474.475525][ T31] schedule_preempt_disabled+0x13/0x20
[ 474.481151][ T31] __mutex_lock+0x7b6/0x11b0
[ 474.485841][ T31] ? __update_load_avg_cfs_rq+0xaf/0x2f0
[ 474.491512][ T31] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 474.498318][ T31] ? __kasan_check_write+0x14/0x20
[ 475.449742][ T31] ? __switch_to+0x51d/0xe20
[ 475.454398][ T31] __mutex_lock_slowpath+0xe/0x10
[ 475.459450][ T31] mutex_lock+0x100/0x1a0
[ 475.463830][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 475.470458][ T31] ? __schedule+0xb76/0x14c0
[ 475.475424][ T31] rtnl_lock+0x15/0x20
[ 475.479490][ T31] linkwatch_event+0xe/0x60
[ 475.484023][ T31] process_one_work+0x6be/0xba0
[ 475.488984][ T31] worker_thread+0xa59/0x1200
[ 475.493713][ T31] ? __kthread_parkme+0xac/0x200
[ 475.498667][ T31] kthread+0x411/0x500
[ 476.451225][ T31] ? worker_clr_flags+0x190/0x190
[ 476.456325][ T31] ? kthread_blkcg+0xd0/0xd0
[ 476.461357][ T31] ret_from_fork+0x1f/0x30
[ 476.465822][ T31]
[ 476.468939][ T31] INFO: task syz-executor:395 blocked for more than 162 seconds.
[ 476.476738][ T31] Not tainted syzkaller #0
[ 476.481720][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 476.490426][ T31] task:syz-executor state:D stack:22976 pid: 395 ppid: 1 flags:0x00004004
[ 477.449652][ T31] Call Trace:
[ 477.452997][ T31]
[ 477.455971][ T31] __schedule+0xb6e/0x14c0
[ 477.460487][ T31] ? release_firmware_map_entry+0x190/0x190
[ 477.466458][ T31] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 477.472319][ T31] ? prepare_to_wait_event+0x40b/0x440
[ 477.477808][ T31] schedule+0x11e/0x1e0
[ 477.482041][ T31] synchronize_rcu_expedited+0x45c/0x5b0
[ 477.487702][ T31] ? synchronize_rcu+0x110/0x110
[ 477.492697][ T31] ? __kasan_slab_free+0x11/0x20
[ 477.497662][ T31] ? slab_free_freelist_hook+0xc2/0x190
[ 478.449868][ T31] ? rcu_exp_handler+0x370/0x370
[ 478.454892][ T31] ? kfree+0xc4/0x270
[ 478.458899][ T31] ? kfree_const+0x39/0x40
[ 478.463425][ T31] ? __kasan_check_write+0x14/0x20
[ 478.468577][ T31] ? kobject_put+0x1a8/0x270
[ 478.473206][ T31] ? store_rps_dev_flow_table_cnt+0x2e0/0x2e0
[ 478.479297][ T31] ? kobject_put+0x214/0x270
[ 478.483949][ T31] ? io_schedule+0xe0/0xe0
[ 478.488376][ T31] ? netdev_queue_update_kobjects+0x3c8/0x3e0
[ 478.494529][ T31] ? __kasan_check_read+0x11/0x20
[ 478.499618][ T31] netif_set_real_num_tx_queues+0x48a/0x780
[ 479.455681][ T31] ? linkwatch_fire_event+0x307/0x380
[ 479.461153][ T31] veth_newlink+0x9bc/0xda0
[ 479.465695][ T31] ? veth_validate+0x200/0x200
[ 479.470506][ T31] ? rtnl_create_link+0x7a4/0x9d0
[ 479.475553][ T31] ? veth_validate+0x200/0x200
[ 479.480409][ T31] rtnl_newlink+0x112d/0x17b0
[ 479.485131][ T31] ? rtnl_setlink+0x400/0x400
[ 479.489851][ T31] ? memcpy+0x56/0x70
[ 479.493868][ T31] ? __kasan_check_write+0x14/0x20
[ 479.498997][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 480.450235][ T31] ? ns_capable+0x8c/0xf0
[ 480.454615][ T31] ? netlink_net_capable+0x125/0x160
[ 480.460338][ T31] ? rtnl_setlink+0x400/0x400
[ 480.465065][ T31] rtnetlink_rcv_msg+0x9e4/0xb90
[ 480.470061][ T31] ? rtnetlink_bind+0x80/0x80
[ 480.474753][ T31] ? memcpy+0x56/0x70
[ 480.478730][ T31] ? avc_has_perm_noaudit+0x2f4/0x460
[ 480.484127][ T31] ? arch_stack_walk+0xee/0x140
[ 480.489003][ T31] ? avc_denied+0x1b0/0x1b0
[ 480.493539][ T31] ? stack_trace_save+0x98/0xe0
[ 480.498403][ T31] ? avc_has_perm+0x158/0x240
[ 481.449820][ T31] ? avc_has_perm_noaudit+0x460/0x460
[ 481.455251][ T31] ? do_syscall_64+0x4c/0xa0
[ 481.459924][ T31] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 481.465350][ T31] netlink_rcv_skb+0x1e0/0x430
[ 481.470176][ T31] ? rtnetlink_bind+0x80/0x80
[ 481.474959][ T31] ? netlink_ack+0xb60/0xb60
[ 481.479552][ T31] ? __netlink_lookup+0x387/0x3b0
[ 481.484719][ T31] rtnetlink_rcv+0x1c/0x20
[ 481.489133][ T31] netlink_unicast+0x876/0xa40
[ 481.493924][ T31] netlink_sendmsg+0x86a/0xb70
[ 481.498805][ T31] ? netlink_getsockopt+0x530/0x530
[ 482.450142][ T31] ? security_socket_sendmsg+0x82/0xa0
[ 482.455950][ T31] __sys_sendto+0x423/0x580
[ 482.461182][ T31] ? __ia32_sys_getpeername+0x90/0x90
[ 482.466604][ T31] ? alloc_empty_file_noaccount+0x80/0x80
[ 482.472407][ T31] __x64_sys_sendto+0xe5/0x100
[ 482.477198][ T31] x64_sys_call+0x178/0x9a0
[ 482.481745][ T31] do_syscall_64+0x4c/0xa0
[ 482.486179][ T31] ? clear_bhb_loop+0x50/0xa0
[ 482.490882][ T31] ? clear_bhb_loop+0x50/0xa0
[ 482.495578][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 483.450203][ T31] RIP: 0033:0x7f344c503583
[ 483.454674][ T31] RSP: 002b:00007fff32275ff8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 483.463140][ T31] RAX: ffffffffffffffda RBX: 00007f344d286620 RCX: 00007f344c503583
[ 483.471147][ T31] RDX: 000000000000002c RSI: 00007f344d286670 RDI: 0000000000000003
[ 483.479212][ T31] RBP: 0000000000000001 R08: 00007fff32276014 R09: 000000000000000c
[ 483.487205][ T31] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 483.495239][ T31] R13: 0000000000000000 R14: 00007f344d286670 R15: 0000000000000000
[ 484.449804][ T31]
[ 484.452890][ T31] NMI backtrace for cpu 0
[ 484.457221][ T31] CPU: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0
[ 484.464465][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 484.474621][ T31] Call Trace:
[ 484.477911][ T31]
[ 484.480841][ T31] __dump_stack+0x21/0x30
[ 484.485180][ T31] dump_stack_lvl+0xee/0x150
[ 484.489771][ T31] ? show_regs_print_info+0x20/0x20
[ 484.494978][ T31] dump_stack+0x15/0x20
[ 484.499133][ T31] nmi_cpu_backtrace+0x2b4/0x2c0
[ 484.504156][ T31] ? rcu_read_unlock_special+0xab/0x460
[ 484.509706][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240
[ 484.515872][ T31] ? __rcu_read_unlock+0xa0/0xa0
[ 484.520812][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 484.526882][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 484.532950][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240
[ 484.538933][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 484.544826][ T31] watchdog+0xd64/0xea0
[ 484.548993][ T31] ? hungtask_pm_notify+0x50/0x50
[ 484.554019][ T31] ? __kasan_check_read+0x11/0x20
[ 484.559047][ T31] ? __kthread_parkme+0xac/0x200
[ 484.563992][ T31] ? preempt_count_add+0x90/0x1b0
[ 484.569045][ T31] kthread+0x411/0x500
[ 484.573116][ T31] ? hungtask_pm_notify+0x50/0x50
[ 484.578144][ T31] ? kthread_blkcg+0xd0/0xd0
[ 484.582764][ T31] ret_from_fork+0x1f/0x30
[ 484.587181][ T31]
[ 484.590270][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 484.595595][ C1] NMI backtrace for cpu 1
[ 484.595605][ C1] CPU: 1 PID: 389 Comm: syz.3.18 Not tainted syzkaller #0
[ 484.595622][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 484.595631][ C1] RIP: 0010:bcmp+0x53/0x230
[ 484.595650][ C1] Code: 89 fe 4c 89 f0 48 c1 e8 03 42 0f b6 04 38 84 c0 75 6f 49 8d 46 07 48 89 c1 48 c1 e9 03 42 0f b6 0c 39 84 c9 0f 85 87 00 00 00 <4c> 8b 27 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 a6 00 00
[ 484.595664][ C1] RSP: 0018:ffffc90002d07198 EFLAGS: 00000246
[ 484.595678][ C1] RAX: ffff888112cb2beb RBX: ffff88812d2307e4 RCX: 0000000000000000
[ 484.595691][ C1] RDX: 000000000000001a RSI: ffff88812d2307e4 RDI: ffff888112cb2be4
[ 484.595702][ C1] RBP: ffffc90002d071d0 R08: 0000000000000000 R09: ffffed10219b267f
[ 484.595714][ C1] R10: ffffed10219b267f R11: 1ffff110219b267e R12: ffff888112cb2820
[ 484.595726][ C1] R13: dffffc0000000000 R14: ffff888112cb2be4 R15: dffffc0000000000
[ 484.595739][ C1] FS: 000055556ee9c500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 484.595754][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 484.595765][ C1] CR2: 00007ffee2ec0958 CR3: 0000000128b85000 CR4: 00000000003506a0
[ 484.595780][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 484.595789][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 484.595799][ C1] Call Trace:
[ 484.595804][ C1]
[ 484.595810][ C1] ext4_xattr_block_set+0xf9b/0x2cb0
[ 484.595834][ C1] ? ext4_xattr_block_find+0x4f0/0x4f0
[ 484.595852][ C1] ? ext4_xattr_block_find+0xf1/0x4f0
[ 484.595871][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 484.595891][ C1] ? ext4_xattr_set_entry+0x37d0/0x37d0
[ 484.595910][ C1] ? selinux_inode_free_security+0x210/0x210
[ 484.595931][ C1] ext4_initxattrs+0xa6/0x110
[ 484.595946][ C1] security_inode_init_security+0x254/0x370
[ 484.595964][ C1] ? posix_acl_create+0x118/0x440
[ 484.595980][ C1] ? ext4_init_security+0x40/0x40
[ 484.595995][ C1] ? security_dentry_create_files_as+0xc0/0xc0
[ 484.596014][ C1] ? dquot_alloc_inode+0x1c2/0x7d0
[ 484.596032][ C1] ? __ext4_set_acl+0x600/0x600
[ 484.596046][ C1] ? prandom_u32+0x24d/0x290
[ 484.596061][ C1] ext4_init_security+0x34/0x40
[ 484.596076][ C1] __ext4_new_inode+0x2c41/0x3690
[ 484.596094][ C1] ? ext4_has_group_desc_csum+0x1f0/0x1f0
[ 484.596110][ C1] ? dquot_initialize+0x20/0x20
[ 484.596126][ C1] ? ext4_lookup+0x427/0x840
[ 484.596142][ C1] ? ext4_add_entry+0xf40/0xf40
[ 484.596156][ C1] ? may_create+0x377/0x460
[ 484.596170][ C1] ext4_create+0x22a/0x460
[ 484.596187][ C1] ? ext4_lookup+0x840/0x840
[ 484.596201][ C1] ? selinux_inode_create+0x22/0x30
[ 484.596217][ C1] ? security_inode_create+0xbd/0x110
[ 484.596234][ C1] ? ext4_lookup+0x840/0x840
[ 484.596248][ C1] path_openat+0x11ae/0x2f10
[ 484.596270][ C1] ? do_filp_open+0x3e0/0x3e0
[ 484.596287][ C1] ? expand_files+0xde/0x8e0
[ 484.596301][ C1] do_filp_open+0x1b3/0x3e0
[ 484.596317][ C1] ? vfs_tmpfile+0x2d0/0x2d0
[ 484.596338][ C1] do_sys_openat2+0x14c/0x7b0
[ 484.596364][ C1] ? __se_sys_futex+0x139/0x310
[ 484.596381][ C1] ? do_sys_open+0xe0/0xe0
[ 484.596397][ C1] ? __x64_sys_futex+0x100/0x100
[ 484.596416][ C1] __x64_sys_creat+0x8e/0xb0
[ 484.596434][ C1] x64_sys_call+0x94a/0x9a0
[ 484.596449][ C1] do_syscall_64+0x4c/0xa0
[ 484.596467][ C1] ? clear_bhb_loop+0x50/0xa0
[ 484.596481][ C1] ? clear_bhb_loop+0x50/0xa0
[ 484.596495][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 484.596514][ C1] RIP: 0033:0x7f6a596c0749
[ 484.596527][ 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
[ 484.596540][ C1] RSP: 002b:00007ffef98980b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 484.596555][ C1] RAX: ffffffffffffffda RBX: 00007f6a59916fa0 RCX: 00007f6a596c0749
[ 484.596567][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 484.596577][ C1] RBP: 00007f6a59744f91 R08: 0000000000000000 R09: 0000000000000000
[ 484.596587][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 484.596597][ C1] R13: 00007f6a59916fa0 R14: 00007f6a59916fa0 R15: 0000000000000002
[ 484.596612][ C1]
[ 507.449917][ T31] INFO: task kworker/u4:3:309 blocked for more than 193 seconds.
[ 507.457693][ T31] Not tainted syzkaller #0
[ 507.462716][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 507.471424][ T31] task:kworker/u4:3 state:D stack:24864 pid: 309 ppid: 2 flags:0x00004000
[ 507.480786][ T31] Workqueue: events_unbound linkwatch_event
[ 507.486706][ T31] Call Trace:
[ 507.490021][ T31]
[ 507.492974][ T31] __schedule+0xb6e/0x14c0
[ 507.497401][ T31] ? release_firmware_map_entry+0x190/0x190
[ 508.451154][ T31] ? __mutex_add_waiter+0x17b/0x270
[ 508.456423][ T31] ? __kasan_check_write+0x14/0x20
[ 508.461705][ T31] ? kthread_data+0x50/0xc0
[ 508.466230][ T31] ? wq_worker_sleeping+0x60/0x200
[ 508.471374][ T31] schedule+0x11e/0x1e0
[ 508.475544][ T31] schedule_preempt_disabled+0x13/0x20
[ 508.481021][ T31] __mutex_lock+0x7b6/0x11b0
[ 508.485627][ T31] ? __update_load_avg_cfs_rq+0xaf/0x2f0
[ 508.491348][ T31] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 508.498135][ T31] ? __kasan_check_write+0x14/0x20
[ 509.449974][ T31] ? __switch_to+0x51d/0xe20
[ 509.454637][ T31] __mutex_lock_slowpath+0xe/0x10
[ 509.459703][ T31] mutex_lock+0x100/0x1a0
[ 509.464111][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 509.470823][ T31] ? __schedule+0xb76/0x14c0
[ 509.475440][ T31] rtnl_lock+0x15/0x20
[ 509.479509][ T31] linkwatch_event+0xe/0x60
[ 509.484049][ T31] process_one_work+0x6be/0xba0
[ 509.488914][ T31] worker_thread+0xa59/0x1200
[ 509.493708][ T31] ? __kthread_parkme+0xac/0x200
[ 509.498662][ T31] kthread+0x411/0x500
[ 510.449781][ T31] ? worker_clr_flags+0x190/0x190
[ 510.454946][ T31] ? kthread_blkcg+0xd0/0xd0
[ 510.459669][ T31] ret_from_fork+0x1f/0x30
[ 510.464137][ T31]
[ 510.467176][ T31] INFO: task syz-executor:395 blocked for more than 196 seconds.
[ 510.474970][ T31] Not tainted syzkaller #0
[ 510.480008][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 510.488692][ T31] task:syz-executor state:D stack:22976 pid: 395 ppid: 1 flags:0x00004004
[ 510.498373][ T31] Call Trace:
[ 511.459625][ T31]
[ 511.462613][ T31] __schedule+0xb6e/0x14c0
[ 511.467057][ T31] ? release_firmware_map_entry+0x190/0x190
[ 511.472987][ T31] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 511.478924][ T31] ? prepare_to_wait_event+0x40b/0x440
[ 511.484437][ T31] schedule+0x11e/0x1e0
[ 511.488629][ T31] synchronize_rcu_expedited+0x45c/0x5b0
[ 511.494309][ T31] ? synchronize_rcu+0x110/0x110
[ 511.499260][ T31] ? __kasan_slab_free+0x11/0x20
[ 512.450324][ T31] ? slab_free_freelist_hook+0xc2/0x190
[ 512.455970][ T31] ? rcu_exp_handler+0x370/0x370
[ 512.461010][ T31] ? kfree+0xc4/0x270
[ 512.465082][ T31] ? kfree_const+0x39/0x40
[ 512.469538][ T31] ? __kasan_check_write+0x14/0x20
[ 512.474705][ T31] ? kobject_put+0x1a8/0x270
[ 512.479293][ T31] ? store_rps_dev_flow_table_cnt+0x2e0/0x2e0
[ 512.485393][ T31] ? kobject_put+0x214/0x270
[ 512.490058][ T31] ? io_schedule+0xe0/0xe0
[ 512.494485][ T31] ? netdev_queue_update_kobjects+0x3c8/0x3e0
[ 513.450173][ T31] ? __kasan_check_read+0x11/0x20
[ 513.455411][ T31] netif_set_real_num_tx_queues+0x48a/0x780
[ 513.461377][ T31] ? linkwatch_fire_event+0x307/0x380
[ 513.466782][ T31] veth_newlink+0x9bc/0xda0
[ 513.471335][ T31] ? veth_validate+0x200/0x200
[ 513.476123][ T31] ? rtnl_create_link+0x7a4/0x9d0
[ 513.481186][ T31] ? veth_validate+0x200/0x200
[ 513.485966][ T31] rtnl_newlink+0x112d/0x17b0
[ 513.490859][ T31] ? rtnl_setlink+0x400/0x400
[ 513.495658][ T31] ? memcpy+0x56/0x70
[ 514.450052][ T31] ? __kasan_check_write+0x14/0x20
[ 514.455275][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 514.461990][ T31] ? ns_capable+0x8c/0xf0
[ 514.466408][ T31] ? netlink_net_capable+0x125/0x160
[ 514.471755][ T31] ? rtnl_setlink+0x400/0x400
[ 514.476536][ T31] rtnetlink_rcv_msg+0x9e4/0xb90
[ 514.481651][ T31] ? rtnetlink_bind+0x80/0x80
[ 514.486341][ T31] ? memcpy+0x56/0x70
[ 514.490373][ T31] ? avc_has_perm_noaudit+0x2f4/0x460
[ 514.495772][ T31] ? arch_stack_walk+0xee/0x140
[ 515.449736][ T31] ? avc_denied+0x1b0/0x1b0
[ 515.454350][ T31] ? stack_trace_save+0x98/0xe0
[ 515.459229][ T31] ? avc_has_perm+0x158/0x240
[ 515.464059][ T31] ? avc_has_perm_noaudit+0x460/0x460
[ 515.469446][ T31] ? do_syscall_64+0x4c/0xa0
[ 515.474076][ T31] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 515.479464][ T31] netlink_rcv_skb+0x1e0/0x430
[ 515.484269][ T31] ? rtnetlink_bind+0x80/0x80
[ 515.488979][ T31] ? netlink_ack+0xb60/0xb60
[ 515.493599][ T31] ? __netlink_lookup+0x387/0x3b0
[ 515.498638][ T31] rtnetlink_rcv+0x1c/0x20
[ 516.460273][ T31] netlink_unicast+0x876/0xa40
[ 516.465264][ T31] netlink_sendmsg+0x86a/0xb70
[ 516.470255][ T31] ? netlink_getsockopt+0x530/0x530
[ 516.475513][ T31] ? security_socket_sendmsg+0x82/0xa0
[ 516.481493][ T31] __sys_sendto+0x423/0x580
[ 516.486127][ T31] ? __ia32_sys_getpeername+0x90/0x90
[ 516.491858][ T31] ? alloc_empty_file_noaccount+0x80/0x80
[ 516.497627][ T31] __x64_sys_sendto+0xe5/0x100
[ 517.449697][ T31] x64_sys_call+0x178/0x9a0
[ 517.455065][ T31] do_syscall_64+0x4c/0xa0
[ 517.459534][ T31] ? clear_bhb_loop+0x50/0xa0
[ 517.472247][ T31] ? clear_bhb_loop+0x50/0xa0
[ 517.476954][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 517.482881][ T31] RIP: 0033:0x7f344c503583
[ 517.487333][ T31] RSP: 002b:00007fff32275ff8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 517.495797][ T31] RAX: ffffffffffffffda RBX: 00007f344d286620 RCX: 00007f344c503583
[ 518.461395][ T31] RDX: 000000000000002c RSI: 00007f344d286670 RDI: 0000000000000003
[ 518.469540][ T31] RBP: 0000000000000001 R08: 00007fff32276014 R09: 000000000000000c
[ 518.477586][ T31] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 518.485621][ T31] R13: 0000000000000000 R14: 00007f344d286670 R15: 0000000000000000
[ 518.493665][ T31]
[ 518.496706][ T31] INFO: task syz-executor:397 blocked for more than 142 seconds.
[ 519.449755][ T31] Not tainted syzkaller #0
[ 519.454826][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 519.463544][ T31] task:syz-executor state:D stack:28000 pid: 397 ppid: 1 flags:0x00004004
[ 519.472810][ T31] Call Trace:
[ 519.476131][ T31]
[ 519.479074][ T31] __schedule+0xb6e/0x14c0
[ 519.483519][ T31] ? release_firmware_map_entry+0x190/0x190
[ 519.489438][ T31] ? __mutex_add_waiter+0xc7/0x270
[ 519.494838][ T31] ? __kasan_check_write+0x14/0x20
[ 520.449892][ T31] ? __ww_mutex_check_waiters+0x350/0x350
[ 520.455685][ T31] schedule+0x11e/0x1e0
[ 520.460430][ T31] schedule_preempt_disabled+0x13/0x20
[ 520.465935][ T31] __mutex_lock+0x7b6/0x11b0
[ 520.470614][ T31] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 520.477397][ T31] ? selinux_capable+0x29c/0x380
[ 520.482400][ T31] ? selinux_capset+0xf0/0xf0
[ 520.487106][ T31] ? cap_capable+0x1aa/0x230
[ 520.491838][ T31] __mutex_lock_slowpath+0xe/0x10
[ 520.496974][ T31] mutex_lock+0x100/0x1a0
[ 521.450033][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 521.456685][ T31] ? ns_capable+0x8c/0xf0
[ 521.461090][ T31] ? netlink_net_capable+0x125/0x160
[ 521.466465][ T31] rtnetlink_rcv_msg+0x4af/0xb90
[ 521.471476][ T31] ? rtnetlink_bind+0x80/0x80
[ 521.476258][ T31] ? memcpy+0x56/0x70
[ 521.480284][ T31] ? avc_has_perm_noaudit+0x2f4/0x460
[ 521.485670][ T31] ? arch_stack_walk+0xee/0x140
[ 521.490577][ T31] ? avc_denied+0x1b0/0x1b0
[ 521.495091][ T31] ? stack_trace_save+0x98/0xe0
[ 522.449856][ T31] ? avc_has_perm+0x158/0x240
[ 522.454669][ T31] ? avc_has_perm_noaudit+0x460/0x460
[ 522.460215][ T31] ? do_syscall_64+0x4c/0xa0
[ 522.464848][ T31] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 522.470292][ T31] netlink_rcv_skb+0x1e0/0x430
[ 522.475092][ T31] ? rtnetlink_bind+0x80/0x80
[ 522.479825][ T31] ? netlink_ack+0xb60/0xb60
[ 522.484452][ T31] ? __netlink_lookup+0x387/0x3b0
[ 522.489497][ T31] rtnetlink_rcv+0x1c/0x20
[ 522.493953][ T31] netlink_unicast+0x876/0xa40
[ 522.498732][ T31] netlink_sendmsg+0x86a/0xb70
[ 523.449807][ T31] ? netlink_getsockopt+0x530/0x530
[ 523.455080][ T31] ? security_socket_sendmsg+0x82/0xa0
[ 523.460712][ T31] __sys_sendto+0x423/0x580
[ 523.465238][ T31] ? __ia32_sys_getpeername+0x90/0x90
[ 523.470732][ T31] __x64_sys_sendto+0xe5/0x100
[ 523.475536][ T31] x64_sys_call+0x178/0x9a0
[ 523.480120][ T31] do_syscall_64+0x4c/0xa0
[ 523.484548][ T31] ? clear_bhb_loop+0x50/0xa0
[ 523.489216][ T31] ? clear_bhb_loop+0x50/0xa0
[ 523.493928][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 524.450541][ T31] RIP: 0033:0x7f8172a1c583
[ 524.455047][ T31] RSP: 002b:00007ffc62ace0d8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 524.463618][ T31] RAX: ffffffffffffffda RBX: 00007f817379f620 RCX: 00007f8172a1c583
[ 524.471663][ T31] RDX: 0000000000000028 RSI: 00007f817379f670 RDI: 0000000000000003
[ 524.479705][ T31] RBP: 0000000000000001 R08: 00007ffc62ace0f4 R09: 000000000000000c
[ 524.487747][ T31] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 524.495776][ T31] R13: 0000000000000000 R14: 00007f817379f670 R15: 0000000000000000
[ 525.459617][ T31]
[ 525.462863][ T31] NMI backtrace for cpu 0
[ 525.467200][ T31] CPU: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0
[ 525.474383][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 525.484456][ T31] Call Trace:
[ 525.487727][ T31]
[ 525.490654][ T31] __dump_stack+0x21/0x30
[ 525.494983][ T31] dump_stack_lvl+0xee/0x150
[ 525.499572][ T31] ? show_regs_print_info+0x20/0x20
[ 525.504791][ T31] dump_stack+0x15/0x20
[ 525.508956][ T31] nmi_cpu_backtrace+0x2b4/0x2c0
[ 525.513902][ T31] ? rcu_read_unlock_special+0xab/0x460
[ 525.519451][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240
[ 525.525608][ T31] ? __rcu_read_unlock+0xa0/0xa0
[ 525.530549][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 525.536621][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 525.542692][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240
[ 525.548673][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 525.554570][ T31] watchdog+0xd64/0xea0
[ 525.558734][ T31] ? hungtask_pm_notify+0x50/0x50
[ 525.563759][ T31] ? __kasan_check_read+0x11/0x20
[ 525.568783][ T31] ? __kthread_parkme+0xac/0x200
[ 525.573722][ T31] ? preempt_count_add+0x90/0x1b0
[ 525.578757][ T31] kthread+0x411/0x500
[ 525.582824][ T31] ? hungtask_pm_notify+0x50/0x50
[ 525.587849][ T31] ? kthread_blkcg+0xd0/0xd0
[ 525.592444][ T31] ret_from_fork+0x1f/0x30
[ 525.596881][ T31]
[ 525.599994][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 525.605388][ C1] NMI backtrace for cpu 1
[ 525.605398][ C1] CPU: 1 PID: 389 Comm: syz.3.18 Not tainted syzkaller #0
[ 525.605415][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 525.605424][ C1] RIP: 0010:mark_page_accessed+0x136/0x8d0
[ 525.605446][ C1] Code: 89 15 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 8b 87 15 00 4d 8b 27 41 83 e4 02 31 ff 4c 89 e6 e8 ea 09 d7 ff <4c> 89 eb 48 8b 44 24 10 42 80 3c 28 00 74 08 4c 89 f7 e8 63 87 15
[ 525.605459][ C1] RSP: 0018:ffffc90002d06c60 EFLAGS: 00000293
[ 525.605474][ C1] RAX: ffffffff8191b936 RBX: ffffea0004b47e08 RCX: ffff8881125d8000
[ 525.605487][ C1] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[ 525.605497][ C1] RBP: ffffc90002d06d10 R08: dffffc0000000000 R09: fffff94000969179
[ 525.605509][ C1] R10: fffff94000969179 R11: 1ffffd4000969178 R12: 0000000000000002
[ 525.605520][ C1] R13: dffffc0000000000 R14: ffffea0004b48bc8 R15: ffffea0004b48bc0
[ 525.605533][ C1] FS: 000055556ee9c500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 525.605547][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 525.605559][ C1] CR2: 00007fe4bc463000 CR3: 0000000128b85000 CR4: 00000000003506a0
[ 525.605573][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 525.605583][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 525.605593][ C1] Call Trace:
[ 525.605597][ C1]
[ 525.605603][ C1] ? __activate_page+0xd40/0xd40
[ 525.605618][ C1] ? __kasan_check_read+0x11/0x20
[ 525.605636][ C1] ? cpupri_find+0xfc/0x280
[ 525.605653][ C1] __find_get_block+0xafd/0xee0
[ 525.605673][ C1] ? write_boundary_block+0x140/0x140
[ 525.605691][ C1] ? find_lock_lowest_rq+0x97/0x460
[ 525.605711][ C1] __getblk_gfp+0x30/0x7d0
[ 525.605728][ C1] ? ext4_get_group_desc+0x2ad/0x320
[ 525.605746][ C1] __ext4_get_inode_loc+0x461/0xcd0
[ 525.605762][ C1] ? __kasan_check_read+0x11/0x20
[ 525.605780][ C1] ? ext4_get_inode_loc+0x130/0x130
[ 525.605797][ C1] ? __kasan_check_write+0x14/0x20
[ 525.605813][ C1] ? _raw_spin_lock+0x8e/0xe0
[ 525.605830][ C1] ? _raw_spin_trylock_bh+0x130/0x130
[ 525.605848][ C1] ext4_reserve_inode_write+0x16c/0x320
[ 525.605866][ C1] __ext4_mark_inode_dirty+0xb7/0x610
[ 525.605888][ C1] ? ext4_journal_check_start+0x172/0x240
[ 525.605906][ C1] ext4_dirty_inode+0xbd/0x100
[ 525.605922][ C1] ? __ext4_expand_extra_isize+0x3e0/0x3e0
[ 525.605939][ C1] __mark_inode_dirty+0x1f5/0x9c0
[ 525.605957][ C1] ext4_xattr_block_set+0x13db/0x2cb0
[ 525.605979][ C1] ? ext4_xattr_block_find+0x4f0/0x4f0
[ 525.605997][ C1] ? ext4_xattr_block_find+0xf1/0x4f0
[ 525.606015][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 525.606035][ C1] ? ext4_xattr_set_entry+0x37d0/0x37d0
[ 525.606054][ C1] ? selinux_inode_free_security+0x210/0x210
[ 525.606075][ C1] ext4_initxattrs+0xa6/0x110
[ 525.606089][ C1] security_inode_init_security+0x254/0x370
[ 525.606108][ C1] ? posix_acl_create+0x118/0x440
[ 525.606123][ C1] ? ext4_init_security+0x40/0x40
[ 525.606138][ C1] ? security_dentry_create_files_as+0xc0/0xc0
[ 525.606157][ C1] ? dquot_alloc_inode+0x1c2/0x7d0
[ 525.606174][ C1] ? __ext4_set_acl+0x600/0x600
[ 525.606188][ C1] ? prandom_u32+0x24d/0x290
[ 525.606204][ C1] ext4_init_security+0x34/0x40
[ 525.606218][ C1] __ext4_new_inode+0x2c41/0x3690
[ 525.606236][ C1] ? ext4_has_group_desc_csum+0x1f0/0x1f0
[ 525.606252][ C1] ? dquot_initialize+0x20/0x20
[ 525.606268][ C1] ? ext4_lookup+0x427/0x840
[ 525.606284][ C1] ? ext4_add_entry+0xf40/0xf40
[ 525.606297][ C1] ? may_create+0x377/0x460
[ 525.606312][ C1] ext4_create+0x22a/0x460
[ 525.606328][ C1] ? ext4_lookup+0x840/0x840
[ 525.606342][ C1] ? selinux_inode_create+0x22/0x30
[ 525.606358][ C1] ? security_inode_create+0xbd/0x110
[ 525.606375][ C1] ? ext4_lookup+0x840/0x840
[ 525.606389][ C1] path_openat+0x11ae/0x2f10
[ 525.606410][ C1] ? do_filp_open+0x3e0/0x3e0
[ 525.606425][ C1] ? expand_files+0xde/0x8e0
[ 525.606440][ C1] do_filp_open+0x1b3/0x3e0
[ 525.606455][ C1] ? vfs_tmpfile+0x2d0/0x2d0
[ 525.606475][ C1] do_sys_openat2+0x14c/0x7b0
[ 525.606494][ C1] ? __se_sys_futex+0x139/0x310
[ 525.606511][ C1] ? do_sys_open+0xe0/0xe0
[ 525.606527][ C1] ? __x64_sys_futex+0x100/0x100
[ 525.606546][ C1] __x64_sys_creat+0x8e/0xb0
[ 525.606564][ C1] x64_sys_call+0x94a/0x9a0
[ 525.606579][ C1] do_syscall_64+0x4c/0xa0
[ 525.606595][ C1] ? clear_bhb_loop+0x50/0xa0
[ 525.606609][ C1] ? clear_bhb_loop+0x50/0xa0
[ 525.606624][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 525.606642][ C1] RIP: 0033:0x7f6a596c0749
[ 525.606656][ 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
[ 525.606668][ C1] RSP: 002b:00007ffef98980b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 525.606684][ C1] RAX: ffffffffffffffda RBX: 00007f6a59916fa0 RCX: 00007f6a596c0749
[ 525.606696][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 525.606706][ C1] RBP: 00007f6a59744f91 R08: 0000000000000000 R09: 0000000000000000
[ 525.606716][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 525.606726][ C1] R13: 00007f6a59916fa0 R14: 00007f6a59916fa0 R15: 0000000000000002
[ 525.606739][ C1]
[ 548.451600][ T31] INFO: task kworker/u4:3:309 blocked for more than 234 seconds.
[ 548.459479][ T31] Not tainted syzkaller #0
[ 548.464489][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 548.473292][ T31] task:kworker/u4:3 state:D stack:24864 pid: 309 ppid: 2 flags:0x00004000
[ 548.482536][ T31] Workqueue: events_unbound linkwatch_event
[ 548.488454][ T31] Call Trace:
[ 548.491798][ T31]
[ 548.494770][ T31] __schedule+0xb6e/0x14c0
[ 548.499182][ T31] ? release_firmware_map_entry+0x190/0x190
[ 549.459958][ T31] ? __mutex_add_waiter+0x17b/0x270
[ 549.465216][ T31] ? __kasan_check_write+0x14/0x20
[ 549.470505][ T31] ? kthread_data+0x50/0xc0
[ 549.475031][ T31] ? wq_worker_sleeping+0x60/0x200
[ 549.480194][ T31] schedule+0x11e/0x1e0
[ 549.484383][ T31] schedule_preempt_disabled+0x13/0x20
[ 549.490023][ T31] __mutex_lock+0x7b6/0x11b0
[ 549.494814][ T31] ? __update_load_avg_cfs_rq+0xaf/0x2f0
[ 550.449869][ T31] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 550.456759][ T31] ? __kasan_check_write+0x14/0x20
[ 550.461980][ T31] ? __switch_to+0x51d/0xe20
[ 550.466745][ T31] __mutex_lock_slowpath+0xe/0x10
[ 550.471844][ T31] mutex_lock+0x100/0x1a0
[ 550.476197][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 550.482828][ T31] ? __schedule+0xb76/0x14c0
[ 550.487473][ T31] rtnl_lock+0x15/0x20
[ 550.491583][ T31] linkwatch_event+0xe/0x60
[ 550.496104][ T31] process_one_work+0x6be/0xba0
[ 551.449730][ T31] worker_thread+0xa59/0x1200
[ 551.454488][ T31] ? __kthread_parkme+0xac/0x200
[ 551.459440][ T31] kthread+0x411/0x500
[ 551.463609][ T31] ? worker_clr_flags+0x190/0x190
[ 551.468663][ T31] ? kthread_blkcg+0xd0/0xd0
[ 551.473339][ T31] ret_from_fork+0x1f/0x30
[ 551.477777][ T31]
[ 551.480863][ T31] INFO: task syz-executor:395 blocked for more than 237 seconds.
[ 551.488629][ T31] Not tainted syzkaller #0
[ 551.493594][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 552.449993][ T31] task:syz-executor state:D stack:22976 pid: 395 ppid: 1 flags:0x00004004
[ 552.459621][ T31] Call Trace:
[ 552.462985][ T31]
[ 552.465938][ T31] __schedule+0xb6e/0x14c0
[ 552.470402][ T31] ? release_firmware_map_entry+0x190/0x190
[ 552.476401][ T31] ? _raw_spin_unlock_irqrestore+0x5b/0x80
[ 552.482249][ T31] ? prepare_to_wait_event+0x40b/0x440
[ 552.487725][ T31] schedule+0x11e/0x1e0
[ 552.491915][ T31] synchronize_rcu_expedited+0x45c/0x5b0
[ 552.497571][ T31] ? synchronize_rcu+0x110/0x110
[ 553.449689][ T31] ? __kasan_slab_free+0x11/0x20
[ 553.454691][ T31] ? slab_free_freelist_hook+0xc2/0x190
[ 553.460280][ T31] ? rcu_exp_handler+0x370/0x370
[ 553.465234][ T31] ? kfree+0xc4/0x270
[ 553.469235][ T31] ? kfree_const+0x39/0x40
[ 553.473697][ T31] ? __kasan_check_write+0x14/0x20
[ 553.478839][ T31] ? kobject_put+0x1a8/0x270
[ 553.483489][ T31] ? store_rps_dev_flow_table_cnt+0x2e0/0x2e0
[ 553.489602][ T31] ? kobject_put+0x214/0x270
[ 553.494213][ T31] ? io_schedule+0xe0/0xe0
[ 553.498621][ T31] ? netdev_queue_update_kobjects+0x3c8/0x3e0
[ 554.449997][ T31] ? __kasan_check_read+0x11/0x20
[ 554.455179][ T31] netif_set_real_num_tx_queues+0x48a/0x780
[ 554.461154][ T31] ? linkwatch_fire_event+0x307/0x380
[ 554.466674][ T31] veth_newlink+0x9bc/0xda0
[ 554.471287][ T31] ? veth_validate+0x200/0x200
[ 554.476073][ T31] ? rtnl_create_link+0x7a4/0x9d0
[ 554.481130][ T31] ? veth_validate+0x200/0x200
[ 554.485906][ T31] rtnl_newlink+0x112d/0x17b0
[ 554.490704][ T31] ? rtnl_setlink+0x400/0x400
[ 554.495407][ T31] ? memcpy+0x56/0x70
[ 554.499392][ T31] ? __kasan_check_write+0x14/0x20
[ 555.460039][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 555.466812][ T31] ? ns_capable+0x8c/0xf0
[ 555.471195][ T31] ? netlink_net_capable+0x125/0x160
[ 555.476495][ T31] ? rtnl_setlink+0x400/0x400
[ 555.481209][ T31] rtnetlink_rcv_msg+0x9e4/0xb90
[ 555.486166][ T31] ? rtnetlink_bind+0x80/0x80
[ 555.491000][ T31] ? memcpy+0x56/0x70
[ 555.495024][ T31] ? avc_has_perm_noaudit+0x2f4/0x460
[ 556.449939][ T31] ? arch_stack_walk+0xee/0x140
[ 556.454917][ T31] ? avc_denied+0x1b0/0x1b0
[ 556.459455][ T31] ? stack_trace_save+0x98/0xe0
[ 556.464341][ T31] ? avc_has_perm+0x158/0x240
[ 556.469032][ T31] ? avc_has_perm_noaudit+0x460/0x460
[ 556.474431][ T31] ? do_syscall_64+0x4c/0xa0
[ 556.479042][ T31] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 556.484607][ T31] netlink_rcv_skb+0x1e0/0x430
[ 556.489418][ T31] ? rtnetlink_bind+0x80/0x80
[ 556.494267][ T31] ? netlink_ack+0xb60/0xb60
[ 556.498887][ T31] ? __netlink_lookup+0x387/0x3b0
[ 557.461538][ T31] rtnetlink_rcv+0x1c/0x20
[ 557.466016][ T31] netlink_unicast+0x876/0xa40
[ 557.471039][ T31] netlink_sendmsg+0x86a/0xb70
[ 557.475924][ T31] ? netlink_getsockopt+0x530/0x530
[ 557.481457][ T31] ? security_socket_sendmsg+0x82/0xa0
[ 557.486936][ T31] __sys_sendto+0x423/0x580
[ 557.491481][ T31] ? __ia32_sys_getpeername+0x90/0x90
[ 557.496867][ T31] ? alloc_empty_file_noaccount+0x80/0x80
[ 558.449937][ T31] __x64_sys_sendto+0xe5/0x100
[ 558.454764][ T31] x64_sys_call+0x178/0x9a0
[ 558.459393][ T31] do_syscall_64+0x4c/0xa0
[ 558.463859][ T31] ? clear_bhb_loop+0x50/0xa0
[ 558.468553][ T31] ? clear_bhb_loop+0x50/0xa0
[ 558.473274][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 558.479187][ T31] RIP: 0033:0x7f344c503583
[ 558.483638][ T31] RSP: 002b:00007fff32275ff8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 558.492194][ T31] RAX: ffffffffffffffda RBX: 00007f344d286620 RCX: 00007f344c503583
[ 559.450247][ T31] RDX: 000000000000002c RSI: 00007f344d286670 RDI: 0000000000000003
[ 559.458272][ T31] RBP: 0000000000000001 R08: 00007fff32276014 R09: 000000000000000c
[ 559.466410][ T31] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 559.474458][ T31] R13: 0000000000000000 R14: 00007f344d286670 R15: 0000000000000000
[ 559.482500][ T31]
[ 559.485552][ T31] INFO: task syz-executor:397 blocked for more than 183 seconds.
[ 559.493301][ T31] Not tainted syzkaller #0
[ 559.498241][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 560.460619][ T31] task:syz-executor state:D stack:28000 pid: 397 ppid: 1 flags:0x00004004
[ 560.469920][ T31] Call Trace:
[ 560.473216][ T31]
[ 560.476151][ T31] __schedule+0xb6e/0x14c0
[ 560.480628][ T31] ? release_firmware_map_entry+0x190/0x190
[ 560.486541][ T31] ? __mutex_add_waiter+0xc7/0x270
[ 560.491692][ T31] ? __kasan_check_write+0x14/0x20
[ 560.496830][ T31] ? __ww_mutex_check_waiters+0x350/0x350
[ 561.450145][ T31] schedule+0x11e/0x1e0
[ 561.454360][ T31] schedule_preempt_disabled+0x13/0x20
[ 561.459909][ T31] __mutex_lock+0x7b6/0x11b0
[ 561.464528][ T31] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20
[ 561.471391][ T31] ? selinux_capable+0x29c/0x380
[ 561.476378][ T31] ? selinux_capset+0xf0/0xf0
[ 561.481281][ T31] ? cap_capable+0x1aa/0x230
[ 561.485890][ T31] __mutex_lock_slowpath+0xe/0x10
[ 561.490972][ T31] mutex_lock+0x100/0x1a0
[ 561.495409][ T31] ? wait_for_completion_killable_timeout+0x10/0x10
[ 562.450224][ T31] ? ns_capable+0x8c/0xf0
[ 562.454663][ T31] ? netlink_net_capable+0x125/0x160
[ 562.460051][ T31] rtnetlink_rcv_msg+0x4af/0xb90
[ 562.465032][ T31] ? rtnetlink_bind+0x80/0x80
[ 562.469743][ T31] ? memcpy+0x56/0x70
[ 562.473742][ T31] ? avc_has_perm_noaudit+0x2f4/0x460
[ 562.479113][ T31] ? arch_stack_walk+0xee/0x140
[ 562.483990][ T31] ? avc_denied+0x1b0/0x1b0
[ 562.488514][ T31] ? stack_trace_save+0x98/0xe0
[ 562.493404][ T31] ? avc_has_perm+0x158/0x240
[ 562.498185][ T31] ? avc_has_perm_noaudit+0x460/0x460
[ 563.449679][ T31] ? do_syscall_64+0x4c/0xa0
[ 563.454335][ T31] ? selinux_nlmsg_lookup+0x400/0x4c0
[ 563.459770][ T31] netlink_rcv_skb+0x1e0/0x430
[ 563.464865][ T31] ? rtnetlink_bind+0x80/0x80
[ 563.469807][ T31] ? netlink_ack+0xb60/0xb60
[ 563.474496][ T31] ? __netlink_lookup+0x387/0x3b0
[ 563.479621][ T31] rtnetlink_rcv+0x1c/0x20
[ 563.484067][ T31] netlink_unicast+0x876/0xa40
[ 563.488847][ T31] netlink_sendmsg+0x86a/0xb70
[ 563.493671][ T31] ? netlink_getsockopt+0x530/0x530
[ 563.498893][ T31] ? security_socket_sendmsg+0x82/0xa0
[ 564.459860][ T31] __sys_sendto+0x423/0x580
[ 564.464707][ T31] ? __ia32_sys_getpeername+0x90/0x90
[ 564.470157][ T31] __x64_sys_sendto+0xe5/0x100
[ 564.475028][ T31] x64_sys_call+0x178/0x9a0
[ 564.479774][ T31] do_syscall_64+0x4c/0xa0
[ 564.484208][ T31] ? clear_bhb_loop+0x50/0xa0
[ 564.488897][ T31] ? clear_bhb_loop+0x50/0xa0
[ 564.493610][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 565.449684][ T31] RIP: 0033:0x7f8172a1c583
[ 565.454160][ T31] RSP: 002b:00007ffc62ace0d8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 565.462623][ T31] RAX: ffffffffffffffda RBX: 00007f817379f620 RCX: 00007f8172a1c583
[ 565.470632][ T31] RDX: 0000000000000028 RSI: 00007f817379f670 RDI: 0000000000000003
[ 565.478622][ T31] RBP: 0000000000000001 R08: 00007ffc62ace0f4 R09: 000000000000000c
[ 565.486680][ T31] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[ 565.494690][ T31] R13: 0000000000000000 R14: 00007f817379f670 R15: 0000000000000000
[ 566.450270][ T31]
[ 566.453393][ T31] NMI backtrace for cpu 0
[ 566.457731][ T31] CPU: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0
[ 566.464924][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 566.474972][ T31] Call Trace:
[ 566.478243][ T31]
[ 566.481164][ T31] __dump_stack+0x21/0x30
[ 566.485505][ T31] dump_stack_lvl+0xee/0x150
[ 566.490121][ T31] ? show_regs_print_info+0x20/0x20
[ 566.495330][ T31] dump_stack+0x15/0x20
[ 566.499491][ T31] nmi_cpu_backtrace+0x2b4/0x2c0
[ 566.504427][ T31] ? rcu_read_unlock_special+0xab/0x460
[ 566.509975][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240
[ 566.516134][ T31] ? __rcu_read_unlock+0xa0/0xa0
[ 566.521078][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 566.527160][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 566.533244][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240
[ 566.539236][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 566.545142][ T31] watchdog+0xd64/0xea0
[ 566.549300][ T31] ? hungtask_pm_notify+0x50/0x50
[ 566.554317][ T31] ? __kasan_check_read+0x11/0x20
[ 566.559343][ T31] ? __kthread_parkme+0xac/0x200
[ 566.564275][ T31] ? preempt_count_add+0x90/0x1b0
[ 566.569295][ T31] kthread+0x411/0x500
[ 566.573375][ T31] ? hungtask_pm_notify+0x50/0x50
[ 566.578393][ T31] ? kthread_blkcg+0xd0/0xd0
[ 566.583066][ T31] ret_from_fork+0x1f/0x30
[ 566.587482][ T31]
[ 566.590585][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 566.595798][ C1] NMI backtrace for cpu 1
[ 566.595809][ C1] CPU: 1 PID: 389 Comm: syz.3.18 Not tainted syzkaller #0
[ 566.595826][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 566.595835][ C1] RIP: 0010:__this_cpu_preempt_check+0x0/0x20
[ 566.595863][ C1] Code: 89 fc ff 48 8b 75 08 48 c7 c7 80 48 63 85 e8 b7 89 fc ff e8 52 fa fc ff eb a7 e8 fb f8 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 <55> 48 89 e5 48 89 fe 48 c7 c7 00 48 63 85 e8 cd fe ff ff 5d c3 00
[ 566.595876][ C1] RSP: 0018:ffffc90002d06d18 EFLAGS: 00000082
[ 566.595891][ C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: b794045b2d376a00
[ 566.595902][ C1] RDX: 0000000000000000 RSI: ffffffff854bda20 RDI: ffffffff854bda00
[ 566.595914][ C1] RBP: ffffc90002d06e20 R08: dffffc0000000000 R09: ffffc90002d06fa0
[ 566.595931][ C1] R10: fffff520005a0df9 R11: 1ffff920005a0df4 R12: ffff88810cd930a8
[ 566.595943][ C1] R13: ffff88810cd930a8 R14: 00000000000352d0 R15: 0000000000000400
[ 566.595955][ C1] FS: 000055556ee9c500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[ 566.595969][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 566.595981][ C1] CR2: 00007fe4bc463000 CR3: 0000000128b85000 CR4: 00000000003506a0
[ 566.595996][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 566.596005][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 566.596015][ C1] Call Trace:
[ 566.596020][ C1]
[ 566.596024][ C1] ? __find_get_block+0xa35/0xee0
[ 566.596045][ C1] ? write_boundary_block+0x140/0x140
[ 566.596069][ C1] ? __kasan_check_write+0x14/0x20
[ 566.596087][ C1] ? _raw_spin_lock+0x8e/0xe0
[ 566.596105][ C1] __getblk_gfp+0x30/0x7d0
[ 566.596123][ C1] ? _raw_spin_trylock_bh+0x130/0x130
[ 566.596141][ C1] ? ext4_get_group_desc+0x2ad/0x320
[ 566.596159][ C1] __ext4_get_inode_loc+0x461/0xcd0
[ 566.596176][ C1] ? __kasan_check_read+0x11/0x20
[ 566.596194][ C1] ? ext4_get_inode_loc+0x130/0x130
[ 566.596211][ C1] ? __kasan_check_write+0x14/0x20
[ 566.596227][ C1] ? _raw_spin_lock+0x8e/0xe0
[ 566.596243][ C1] ? _raw_spin_trylock_bh+0x130/0x130
[ 566.596261][ C1] ext4_reserve_inode_write+0x16c/0x320
[ 566.596279][ C1] __ext4_mark_inode_dirty+0xb7/0x610
[ 566.596294][ C1] ? ext4_journal_check_start+0x172/0x240
[ 566.596313][ C1] ext4_dirty_inode+0xbd/0x100
[ 566.596329][ C1] ? __ext4_expand_extra_isize+0x3e0/0x3e0
[ 566.596346][ C1] __mark_inode_dirty+0x1f5/0x9c0
[ 566.596366][ C1] ext4_xattr_block_set+0x13db/0x2cb0
[ 566.596390][ C1] ? ext4_xattr_block_find+0x4f0/0x4f0
[ 566.596407][ C1] ? ext4_xattr_block_find+0xf1/0x4f0
[ 566.596426][ C1] ext4_xattr_set_handle+0xbd5/0x12b0
[ 566.596446][ C1] ? ext4_xattr_set_entry+0x37d0/0x37d0
[ 566.596465][ C1] ? selinux_inode_free_security+0x210/0x210
[ 566.596485][ C1] ext4_initxattrs+0xa6/0x110
[ 566.596500][ C1] security_inode_init_security+0x254/0x370
[ 566.596519][ C1] ? posix_acl_create+0x118/0x440
[ 566.596535][ C1] ? ext4_init_security+0x40/0x40
[ 566.596550][ C1] ? security_dentry_create_files_as+0xc0/0xc0
[ 566.596580][ C1] ? dquot_alloc_inode+0x1c2/0x7d0
[ 566.596597][ C1] ? __ext4_set_acl+0x600/0x600
[ 566.596611][ C1] ? prandom_u32+0x24d/0x290
[ 566.596626][ C1] ext4_init_security+0x34/0x40
[ 566.596640][ C1] __ext4_new_inode+0x2c41/0x3690
[ 566.596658][ C1] ? ext4_has_group_desc_csum+0x1f0/0x1f0
[ 566.596673][ C1] ? dquot_initialize+0x20/0x20
[ 566.596689][ C1] ? ext4_lookup+0x427/0x840
[ 566.596704][ C1] ? ext4_add_entry+0xf40/0xf40
[ 566.596717][ C1] ? may_create+0x377/0x460
[ 566.596731][ C1] ext4_create+0x22a/0x460
[ 566.596747][ C1] ? ext4_lookup+0x840/0x840
[ 566.596761][ C1] ? selinux_inode_create+0x22/0x30
[ 566.596786][ C1] ? security_inode_create+0xbd/0x110
[ 566.596803][ C1] ? ext4_lookup+0x840/0x840
[ 566.596816][ C1] path_openat+0x11ae/0x2f10
[ 566.596837][ C1] ? do_filp_open+0x3e0/0x3e0
[ 566.596853][ C1] ? expand_files+0xde/0x8e0
[ 566.596872][ C1] do_filp_open+0x1b3/0x3e0
[ 566.596887][ C1] ? vfs_tmpfile+0x2d0/0x2d0
[ 566.596907][ C1] do_sys_openat2+0x14c/0x7b0
[ 566.596925][ C1] ? __se_sys_futex+0x139/0x310
[ 566.596943][ C1] ? do_sys_open+0xe0/0xe0
[ 566.596960][ C1] ? __x64_sys_futex+0x100/0x100
[ 566.596978][ C1] __x64_sys_creat+0x8e/0xb0
[ 566.596995][ C1] x64_sys_call+0x94a/0x9a0
[ 566.597010][ C1] do_syscall_64+0x4c/0xa0
[ 566.597025][ C1] ? clear_bhb_loop+0x50/0xa0
[ 566.597039][ C1] ? clear_bhb_loop+0x50/0xa0
[ 566.597052][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 566.597069][ C1] RIP: 0033:0x7f6a596c0749
[ 566.597083][ 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
[ 566.597095][ C1] RSP: 002b:00007ffef98980b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 566.597111][ C1] RAX: ffffffffffffffda RBX: 00007f6a59916fa0 RCX: 00007f6a596c0749
[ 566.597123][ C1] RDX: 0000000000000000 RSI: 0000000000000182 RDI: 0000200000000000
[ 566.597133][ C1] RBP: 00007f6a59744f91 R08: 0000000000000000 R09: 0000000000000000
[ 566.597142][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 566.597151][ C1] R13: 00007f6a59916fa0 R14: 00007f6a59916fa0 R15: 0000000000000002
[ 566.597164][ C1]