Warning: Permanently added '10.128.1.218' (ED25519) to the list of known hosts. 2026/01/12 04:45:18 parsed 1 programs [ 468.286040][ T30] audit: type=1400 audit(1768193117.998:64): avc: denied { node_bind } for pid=282 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 468.306963][ T30] audit: type=1400 audit(1768193117.998:65): avc: denied { module_request } for pid=282 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 [ 468.933832][ T30] audit: type=1400 audit(1768193118.648:66): 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 [ 468.935464][ T291] cgroup: Unknown subsys name 'net' [ 468.956584][ T30] audit: type=1400 audit(1768193118.648:67): 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 [ 468.983853][ T30] audit: type=1400 audit(1768193118.678:68): 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 [ 468.984309][ T291] cgroup: Unknown subsys name 'devices' [ 469.124808][ T291] cgroup: Unknown subsys name 'hugetlb' [ 469.130638][ T291] cgroup: Unknown subsys name 'rlimit' [ 469.302782][ T30] audit: type=1400 audit(1768193119.018:69): avc: denied { setattr } for pid=291 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 [ 469.325964][ T30] audit: type=1400 audit(1768193119.018:70): 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 [ 469.346388][ T30] audit: type=1400 audit(1768193119.018:71): 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 [ 469.352036][ T293] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 469.366942][ T30] audit: type=1400 audit(1768193119.018:72): 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 [ 469.395752][ T30] audit: type=1400 audit(1768193119.018:73): 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 [ 469.431011][ T291] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 469.864490][ T295] request_module fs-gadgetfs succeeded, but still no fs? [ 470.012447][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 470.019708][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 470.027292][ T304] device bridge_slave_0 entered promiscuous mode [ 470.034256][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 470.041278][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 470.048814][ T304] device bridge_slave_1 entered promiscuous mode [ 470.098750][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 470.105807][ T304] bridge0: port 2(bridge_slave_1) entered forwarding state [ 470.113112][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 470.120164][ T304] bridge0: port 1(bridge_slave_0) entered forwarding state [ 470.140971][ T266] bridge0: port 1(bridge_slave_0) entered disabled state [ 470.148522][ T266] bridge0: port 2(bridge_slave_1) entered disabled state [ 470.155998][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 470.164128][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 470.173855][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 470.182014][ T266] bridge0: port 1(bridge_slave_0) entered blocking state [ 470.189059][ T266] bridge0: port 1(bridge_slave_0) entered forwarding state [ 470.197871][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 470.206262][ T266] bridge0: port 2(bridge_slave_1) entered blocking state [ 470.213463][ T266] bridge0: port 2(bridge_slave_1) entered forwarding state [ 470.226277][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 470.235635][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 470.248730][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 470.259347][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 470.267471][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 470.275005][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 470.284164][ T304] device veth0_vlan entered promiscuous mode [ 470.297177][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 470.306459][ T304] device veth1_macvtap entered promiscuous mode [ 470.315653][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 470.326474][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 470.353628][ T304] syz-executor (304) used greatest stack depth: 20736 bytes left 2026/01/12 04:45:20 executed programs: 0 [ 470.918191][ T10] device bridge_slave_1 left promiscuous mode [ 470.924410][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 470.931909][ T10] device bridge_slave_0 left promiscuous mode [ 470.938083][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 470.945987][ T10] device veth1_macvtap left promiscuous mode [ 470.952163][ T10] device veth0_vlan left promiscuous mode [ 471.092848][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 471.100001][ T362] bridge0: port 1(bridge_slave_0) entered disabled state [ 471.107722][ T362] device bridge_slave_0 entered promiscuous mode [ 471.114736][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 471.121770][ T362] bridge0: port 2(bridge_slave_1) entered disabled state [ 471.129380][ T362] device bridge_slave_1 entered promiscuous mode [ 471.183242][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 471.190395][ T362] bridge0: port 2(bridge_slave_1) entered forwarding state [ 471.197899][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 471.205111][ T362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 471.225939][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 471.233857][ T266] bridge0: port 1(bridge_slave_0) entered disabled state [ 471.241372][ T266] bridge0: port 2(bridge_slave_1) entered disabled state [ 471.254374][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 471.262717][ T266] bridge0: port 1(bridge_slave_0) entered blocking state [ 471.269771][ T266] bridge0: port 1(bridge_slave_0) entered forwarding state [ 471.278413][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 471.286842][ T266] bridge0: port 2(bridge_slave_1) entered blocking state [ 471.294010][ T266] bridge0: port 2(bridge_slave_1) entered forwarding state [ 471.310841][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 471.322843][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 471.340945][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 471.357983][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 471.366340][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 471.374296][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 471.382369][ T362] device veth0_vlan entered promiscuous mode [ 471.395840][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 471.405273][ T362] device veth1_macvtap entered promiscuous mode [ 471.415398][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 471.425692][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 486.513134][ T375] bridge0: port 1(bridge_slave_0) entered blocking state [ 486.520367][ T375] bridge0: port 1(bridge_slave_0) entered disabled state [ 486.528068][ T375] device bridge_slave_0 entered promiscuous mode [ 486.534958][ T375] bridge0: port 2(bridge_slave_1) entered blocking state [ 486.542405][ T375] bridge0: port 2(bridge_slave_1) entered disabled state [ 486.550190][ T375] device bridge_slave_1 entered promiscuous mode [ 486.603736][ T375] bridge0: port 2(bridge_slave_1) entered blocking state [ 486.610902][ T375] bridge0: port 2(bridge_slave_1) entered forwarding state [ 486.618542][ T375] bridge0: port 1(bridge_slave_0) entered blocking state [ 486.625760][ T375] bridge0: port 1(bridge_slave_0) entered forwarding state [ 486.643923][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 486.651302][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 486.659554][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 486.667567][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 486.676645][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 486.684919][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 486.692082][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 486.700947][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 486.709185][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 486.716256][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 486.727710][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 486.737829][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 486.751102][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 486.762152][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 486.770339][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 486.778143][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 486.786483][ T375] device veth0_vlan entered promiscuous mode 2026/01/12 04:45:36 executed programs: 3 [ 486.799022][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 486.808037][ T375] device veth1_macvtap entered promiscuous mode [ 486.817615][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 486.830268][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 501.906292][ T388] bridge0: port 1(bridge_slave_0) entered blocking state [ 501.913402][ T388] bridge0: port 1(bridge_slave_0) entered disabled state [ 501.920749][ T388] device bridge_slave_0 entered promiscuous mode [ 501.928510][ T388] bridge0: port 2(bridge_slave_1) entered blocking state [ 501.935687][ T388] bridge0: port 2(bridge_slave_1) entered disabled state [ 501.943059][ T388] device bridge_slave_1 entered promiscuous mode [ 501.996717][ T388] bridge0: port 2(bridge_slave_1) entered blocking state [ 502.004040][ T388] bridge0: port 2(bridge_slave_1) entered forwarding state [ 502.011359][ T388] bridge0: port 1(bridge_slave_0) entered blocking state [ 502.018466][ T388] bridge0: port 1(bridge_slave_0) entered forwarding state [ 502.035922][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 502.043572][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 502.051065][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 502.058917][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 502.067830][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 502.076457][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 502.083559][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 502.103797][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 502.112170][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 502.119342][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 502.126960][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 502.135276][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 502.145398][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 502.156721][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 502.164810][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 502.172390][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 502.180921][ T388] device veth0_vlan entered promiscuous mode [ 502.190673][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready 2026/01/12 04:45:51 executed programs: 4 [ 502.203622][ T388] device veth1_macvtap entered promiscuous mode [ 502.212923][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 502.223952][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 517.306437][ T400] bridge0: port 1(bridge_slave_0) entered blocking state [ 517.313690][ T400] bridge0: port 1(bridge_slave_0) entered disabled state [ 517.321059][ T400] device bridge_slave_0 entered promiscuous mode [ 517.327978][ T400] bridge0: port 2(bridge_slave_1) entered blocking state [ 517.335087][ T400] bridge0: port 2(bridge_slave_1) entered disabled state [ 517.342721][ T400] device bridge_slave_1 entered promiscuous mode [ 517.390522][ T400] bridge0: port 2(bridge_slave_1) entered blocking state [ 517.397600][ T400] bridge0: port 2(bridge_slave_1) entered forwarding state [ 517.404869][ T400] bridge0: port 1(bridge_slave_0) entered blocking state [ 517.411925][ T400] bridge0: port 1(bridge_slave_0) entered forwarding state [ 517.432569][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 517.440065][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 517.447685][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 517.455528][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 517.464405][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 517.472698][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 517.479720][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 517.488535][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 517.496931][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 517.504009][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 517.516146][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 517.528345][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 517.545330][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 517.556803][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 517.564940][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 517.572350][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 517.580485][ T400] device veth0_vlan entered promiscuous mode 2026/01/12 04:46:07 executed programs: 5 [ 517.590237][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 517.599736][ T400] device veth1_macvtap entered promiscuous mode [ 517.609106][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 517.622936][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 532.699191][ T412] bridge0: port 1(bridge_slave_0) entered blocking state [ 532.706359][ T412] bridge0: port 1(bridge_slave_0) entered disabled state [ 532.713738][ T412] device bridge_slave_0 entered promiscuous mode [ 532.720629][ T412] bridge0: port 2(bridge_slave_1) entered blocking state [ 532.727698][ T412] bridge0: port 2(bridge_slave_1) entered disabled state [ 532.735086][ T412] device bridge_slave_1 entered promiscuous mode [ 532.786651][ T412] bridge0: port 2(bridge_slave_1) entered blocking state [ 532.793714][ T412] bridge0: port 2(bridge_slave_1) entered forwarding state [ 532.800956][ T412] bridge0: port 1(bridge_slave_0) entered blocking state [ 532.807987][ T412] bridge0: port 1(bridge_slave_0) entered forwarding state [ 532.825681][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 532.836244][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 532.844250][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 532.851706][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 532.860630][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 532.868797][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 532.875842][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 532.884847][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 532.893044][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 532.900135][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 532.912455][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 532.921695][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 532.935409][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 532.946711][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 532.954908][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 532.962379][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 532.970689][ T412] device veth0_vlan entered promiscuous mode 2026/01/12 04:46:22 executed programs: 6 [ 532.984390][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 532.993763][ T412] device veth1_macvtap entered promiscuous mode [ 533.003368][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 533.013638][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 548.099168][ T424] bridge0: port 1(bridge_slave_0) entered blocking state [ 548.106352][ T424] bridge0: port 1(bridge_slave_0) entered disabled state [ 548.113954][ T424] device bridge_slave_0 entered promiscuous mode [ 548.120776][ T424] bridge0: port 2(bridge_slave_1) entered blocking state [ 548.127877][ T424] bridge0: port 2(bridge_slave_1) entered disabled state [ 548.135408][ T424] device bridge_slave_1 entered promiscuous mode [ 548.185662][ T424] bridge0: port 2(bridge_slave_1) entered blocking state [ 548.192744][ T424] bridge0: port 2(bridge_slave_1) entered forwarding state [ 548.200120][ T424] bridge0: port 1(bridge_slave_0) entered blocking state [ 548.207178][ T424] bridge0: port 1(bridge_slave_0) entered forwarding state [ 548.228058][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 548.235888][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 548.243754][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 548.251199][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 548.260655][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 548.268980][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 548.276023][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 548.284715][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 548.292922][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 548.300014][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 548.315510][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 548.328085][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 548.341684][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 548.353412][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 548.361454][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 548.369120][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 548.377358][ T424] device veth0_vlan entered promiscuous mode 2026/01/12 04:46:38 executed programs: 7 [ 548.391394][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 548.400638][ T424] device veth1_macvtap entered promiscuous mode [ 548.410203][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 548.420498][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 563.493327][ T437] bridge0: port 1(bridge_slave_0) entered blocking state [ 563.500370][ T437] bridge0: port 1(bridge_slave_0) entered disabled state [ 563.508000][ T437] device bridge_slave_0 entered promiscuous mode [ 563.515028][ T437] bridge0: port 2(bridge_slave_1) entered blocking state [ 563.522070][ T437] bridge0: port 2(bridge_slave_1) entered disabled state [ 563.529453][ T437] device bridge_slave_1 entered promiscuous mode [ 563.585368][ T437] bridge0: port 2(bridge_slave_1) entered blocking state [ 563.592584][ T437] bridge0: port 2(bridge_slave_1) entered forwarding state [ 563.599832][ T437] bridge0: port 1(bridge_slave_0) entered blocking state [ 563.606902][ T437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 563.625423][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 563.632932][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 563.640775][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 563.648747][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 563.657895][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 563.666300][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 563.673359][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 563.682245][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 563.690514][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 563.697555][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 563.713281][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 563.723127][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 563.739844][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 563.751244][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 563.759560][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 563.767274][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 563.775699][ T437] device veth0_vlan entered promiscuous mode [ 563.785974][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 563.795284][ T437] device veth1_macvtap entered promiscuous mode [ 563.805336][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 563.815457][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 611.852766][ T31] INFO: task syz.2.17:373 blocked for more than 122 seconds. [ 611.860218][ T31] Not tainted syzkaller #0 [ 611.865523][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 611.874223][ T31] task:syz.2.17 state:D stack:25824 pid: 373 ppid: 362 flags:0x00004000 [ 611.883519][ T31] Call Trace: [ 611.886802][ T31] [ 611.889718][ T31] __schedule+0xb6e/0x14c0 [ 611.894209][ T31] ? release_firmware_map_entry+0x190/0x190 [ 611.900238][ T31] ? __kasan_check_write+0x14/0x20 [ 611.905510][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 611.910548][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 611.916116][ T31] schedule+0x11e/0x1e0 [ 611.920273][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 611.926015][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 611.931908][ T31] ? dput+0x47/0x90 [ 611.935732][ T31] ? kasan_save_stack+0x49/0x60 [ 611.940578][ T31] ? kasan_save_stack+0x3a/0x60 [ 611.945451][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 611.951096][ T31] ? call_rcu+0x105/0xfe0 [ 611.955461][ T31] ? __fput+0x590/0x8b0 [ 611.959618][ T31] ? ____fput+0x15/0x20 [ 611.963794][ T31] ? task_work_run+0x121/0x190 [ 611.968607][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 611.974090][ T31] ? rwsem_write_trylock+0x130/0x300 [ 611.979411][ T31] ? clear_nonspinnable+0x60/0x60 [ 611.984453][ T31] ? perf_event_exit_event+0x520/0x520 [ 611.990000][ T31] ? mutex_unlock+0x89/0x220 [ 611.994605][ T31] down_write+0x29/0x30 [ 611.998754][ T31] exit_mmap+0x127/0x860 [ 612.003016][ T31] ? vm_brk+0x30/0x30 [ 612.006997][ T31] ? mutex_unlock+0x89/0x220 [ 612.011749][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 612.017364][ T31] __mmput+0x93/0x320 [ 612.021446][ T31] ? mmput+0x48/0x150 [ 612.025515][ T31] mmput+0x50/0x150 [ 612.029413][ T31] do_exit+0x9d2/0x27a0 [ 612.033718][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 612.039922][ T31] ? put_task_struct+0x90/0x90 [ 612.044720][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 612.050363][ T31] ? ____fput+0x15/0x20 [ 612.054557][ T31] do_group_exit+0x141/0x310 [ 612.059166][ T31] ? debug_smp_processor_id+0x17/0x20 [ 612.064749][ T31] __x64_sys_exit_group+0x3f/0x40 [ 612.069967][ T31] x64_sys_call+0x832/0x9a0 [ 612.074516][ T31] do_syscall_64+0x4c/0xa0 [ 612.078938][ T31] ? clear_bhb_loop+0x50/0xa0 [ 612.083631][ T31] ? clear_bhb_loop+0x50/0xa0 [ 612.088306][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 612.094399][ T31] RIP: 0033:0x7f480d15b749 [ 612.098821][ T31] RSP: 002b:00007ffd6f262258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 612.107400][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f480d15b749 [ 612.115494][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 612.123489][ T31] RBP: 0000000000000003 R08: 000000056f26234f R09: 00007f480d380280 [ 612.131470][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 612.139464][ T31] R13: 00007f480d380280 R14: 0000000000000003 R15: 00007ffd6f262310 [ 612.147471][ T31] [ 612.150508][ T31] INFO: task syz.3.18:385 blocked for more than 123 seconds. [ 612.158038][ T31] Not tainted syzkaller #0 [ 612.162986][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 612.171640][ T31] task:syz.3.18 state:D stack:25824 pid: 385 ppid: 375 flags:0x00004000 [ 612.181345][ T31] Call Trace: [ 612.184851][ T31] [ 612.187881][ T31] __schedule+0xb6e/0x14c0 [ 612.192320][ T31] ? release_firmware_map_entry+0x190/0x190 [ 612.198471][ T31] ? __kasan_check_write+0x14/0x20 [ 612.203601][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 612.208611][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 612.214171][ T31] schedule+0x11e/0x1e0 [ 612.218410][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 612.224149][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 612.230052][ T31] ? dput+0x47/0x90 [ 612.233886][ T31] ? kasan_save_stack+0x49/0x60 [ 612.238735][ T31] ? kasan_save_stack+0x3a/0x60 [ 612.243621][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 612.249261][ T31] ? call_rcu+0x105/0xfe0 [ 612.253619][ T31] ? __fput+0x590/0x8b0 [ 612.257779][ T31] ? ____fput+0x15/0x20 [ 612.261934][ T31] ? task_work_run+0x121/0x190 [ 612.266772][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 612.272197][ T31] ? rwsem_write_trylock+0x130/0x300 [ 612.277578][ T31] ? clear_nonspinnable+0x60/0x60 [ 612.282617][ T31] ? perf_event_exit_event+0x520/0x520 [ 612.288287][ T31] ? mutex_unlock+0x89/0x220 [ 612.293098][ T31] down_write+0x29/0x30 [ 612.297256][ T31] exit_mmap+0x127/0x860 [ 612.301492][ T31] ? vm_brk+0x30/0x30 [ 612.305495][ T31] ? mutex_unlock+0x89/0x220 [ 612.310172][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 612.315487][ T31] __mmput+0x93/0x320 [ 612.319568][ T31] ? mmput+0x48/0x150 [ 612.323565][ T31] mmput+0x50/0x150 [ 612.327367][ T31] do_exit+0x9d2/0x27a0 [ 612.331507][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 612.337781][ T31] ? put_task_struct+0x90/0x90 [ 612.342594][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 612.348335][ T31] ? ____fput+0x15/0x20 [ 612.352825][ T31] do_group_exit+0x141/0x310 [ 612.357433][ T31] ? debug_smp_processor_id+0x17/0x20 [ 612.363199][ T31] __x64_sys_exit_group+0x3f/0x40 [ 612.368236][ T31] x64_sys_call+0x832/0x9a0 [ 612.372787][ T31] do_syscall_64+0x4c/0xa0 [ 612.377347][ T31] ? clear_bhb_loop+0x50/0xa0 [ 612.382383][ T31] ? clear_bhb_loop+0x50/0xa0 [ 612.387117][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 612.393173][ T31] RIP: 0033:0x7f9aa8f15749 [ 612.397579][ T31] RSP: 002b:00007ffc9ff402f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 612.406092][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9aa8f15749 [ 612.414213][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 612.422175][ T31] RBP: 0000000000000003 R08: 000000059ff403ef R09: 00007f9aa913a280 [ 612.430172][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 612.438274][ T31] R13: 00007f9aa913a280 R14: 0000000000000003 R15: 00007ffc9ff403b0 [ 612.446447][ T31] [ 612.449589][ T31] NMI backtrace for cpu 0 [ 612.453907][ T31] CPU: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 [ 612.461094][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 612.471230][ T31] Call Trace: [ 612.474589][ T31] [ 612.477588][ T31] __dump_stack+0x21/0x30 [ 612.481903][ T31] dump_stack_lvl+0xee/0x150 [ 612.486475][ T31] ? show_regs_print_info+0x20/0x20 [ 612.491650][ T31] dump_stack+0x15/0x20 [ 612.495794][ T31] nmi_cpu_backtrace+0x2b4/0x2c0 [ 612.500723][ T31] ? rcu_read_unlock_special+0xab/0x460 [ 612.506372][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240 [ 612.512513][ T31] ? __rcu_read_unlock+0xa0/0xa0 [ 612.517529][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 612.523608][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 612.529659][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240 [ 612.535775][ T31] arch_trigger_cpumask_backtrace+0x10/0x20 [ 612.541839][ T31] watchdog+0xd64/0xea0 [ 612.546025][ T31] ? hungtask_pm_notify+0x50/0x50 [ 612.551505][ T31] ? __kasan_check_read+0x11/0x20 [ 612.556691][ T31] ? __kthread_parkme+0xac/0x200 [ 612.562059][ T31] ? preempt_count_add+0x90/0x1b0 [ 612.567083][ T31] kthread+0x411/0x500 [ 612.571147][ T31] ? hungtask_pm_notify+0x50/0x50 [ 612.576159][ T31] ? kthread_blkcg+0xd0/0xd0 [ 612.580879][ T31] ret_from_fork+0x1f/0x30 [ 612.585578][ T31] [ 612.589010][ T31] Sending NMI from CPU 0 to CPUs 1: [ 612.594949][ C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 [ 632.972651][ T31] INFO: task syz.2.17:373 blocked for more than 144 seconds. [ 632.980588][ T31] Not tainted syzkaller #0 [ 632.986218][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 632.995229][ T31] task:syz.2.17 state:D stack:25824 pid: 373 ppid: 362 flags:0x00004000 [ 633.004972][ T31] Call Trace: [ 633.008413][ T31] [ 633.011435][ T31] __schedule+0xb6e/0x14c0 [ 633.016113][ T31] ? release_firmware_map_entry+0x190/0x190 [ 633.022286][ T31] ? __kasan_check_write+0x14/0x20 [ 633.027652][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 633.032960][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 633.038871][ T31] schedule+0x11e/0x1e0 [ 633.043134][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 633.048993][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 633.055216][ T31] ? dput+0x47/0x90 [ 633.059059][ T31] ? kasan_save_stack+0x49/0x60 [ 633.064117][ T31] ? kasan_save_stack+0x3a/0x60 [ 633.068975][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 633.074630][ T31] ? call_rcu+0x105/0xfe0 [ 633.078960][ T31] ? __fput+0x590/0x8b0 [ 633.083129][ T31] ? ____fput+0x15/0x20 [ 633.087292][ T31] ? task_work_run+0x121/0x190 [ 633.092041][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 633.097564][ T31] ? rwsem_write_trylock+0x130/0x300 [ 633.103057][ T31] ? clear_nonspinnable+0x60/0x60 [ 633.108167][ T31] ? perf_event_exit_event+0x520/0x520 [ 633.113784][ T31] ? mutex_unlock+0x89/0x220 [ 633.118388][ T31] down_write+0x29/0x30 [ 633.122570][ T31] exit_mmap+0x127/0x860 [ 633.126827][ T31] ? vm_brk+0x30/0x30 [ 633.130898][ T31] ? mutex_unlock+0x89/0x220 [ 633.135712][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 633.141089][ T31] __mmput+0x93/0x320 [ 633.145111][ T31] ? mmput+0x48/0x150 [ 633.149215][ T31] mmput+0x50/0x150 [ 633.153279][ T31] do_exit+0x9d2/0x27a0 [ 633.157572][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 633.163761][ T31] ? put_task_struct+0x90/0x90 [ 633.168871][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 633.174532][ T31] ? ____fput+0x15/0x20 [ 633.178777][ T31] do_group_exit+0x141/0x310 [ 633.183630][ T31] ? debug_smp_processor_id+0x17/0x20 [ 633.189040][ T31] __x64_sys_exit_group+0x3f/0x40 [ 633.194189][ T31] x64_sys_call+0x832/0x9a0 [ 633.198809][ T31] do_syscall_64+0x4c/0xa0 [ 633.203670][ T31] ? clear_bhb_loop+0x50/0xa0 [ 633.208450][ T31] ? clear_bhb_loop+0x50/0xa0 [ 633.213452][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 633.219736][ T31] RIP: 0033:0x7f480d15b749 [ 633.224372][ T31] RSP: 002b:00007ffd6f262258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 633.232997][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f480d15b749 [ 633.241166][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 633.249361][ T31] RBP: 0000000000000003 R08: 000000056f26234f R09: 00007f480d380280 [ 633.257367][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 633.265623][ T31] R13: 00007f480d380280 R14: 0000000000000003 R15: 00007ffd6f262310 [ 633.273860][ T31] [ 633.277073][ T31] INFO: task syz.3.18:385 blocked for more than 144 seconds. [ 633.285201][ T31] Not tainted syzkaller #0 [ 633.290139][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 633.299286][ T31] task:syz.3.18 state:D stack:25824 pid: 385 ppid: 375 flags:0x00004000 [ 633.308787][ T31] Call Trace: [ 633.312091][ T31] [ 633.315038][ T31] __schedule+0xb6e/0x14c0 [ 633.319704][ T31] ? release_firmware_map_entry+0x190/0x190 [ 633.325646][ T31] ? __kasan_check_write+0x14/0x20 [ 633.330768][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 633.335812][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 633.341448][ T31] schedule+0x11e/0x1e0 [ 633.345613][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 633.351331][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 633.357341][ T31] ? dput+0x47/0x90 [ 633.361157][ T31] ? kasan_save_stack+0x49/0x60 [ 633.366026][ T31] ? kasan_save_stack+0x3a/0x60 [ 633.370888][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 633.376556][ T31] ? call_rcu+0x105/0xfe0 [ 633.381047][ T31] ? __fput+0x590/0x8b0 [ 633.385265][ T31] ? ____fput+0x15/0x20 [ 633.389418][ T31] ? task_work_run+0x121/0x190 [ 633.394217][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 633.399937][ T31] ? rwsem_write_trylock+0x130/0x300 [ 633.405267][ T31] ? clear_nonspinnable+0x60/0x60 [ 633.410289][ T31] ? perf_event_exit_event+0x520/0x520 [ 633.416077][ T31] ? mutex_unlock+0x89/0x220 [ 633.421008][ T31] down_write+0x29/0x30 [ 633.425616][ T31] exit_mmap+0x127/0x860 [ 633.430169][ T31] ? vm_brk+0x30/0x30 [ 633.434225][ T31] ? mutex_unlock+0x89/0x220 [ 633.438988][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 633.444355][ T31] __mmput+0x93/0x320 [ 633.448546][ T31] ? mmput+0x48/0x150 [ 633.452675][ T31] mmput+0x50/0x150 [ 633.456502][ T31] do_exit+0x9d2/0x27a0 [ 633.460678][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 633.466838][ T31] ? put_task_struct+0x90/0x90 [ 633.471756][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 633.477420][ T31] ? ____fput+0x15/0x20 [ 633.481667][ T31] do_group_exit+0x141/0x310 [ 633.486393][ T31] ? debug_smp_processor_id+0x17/0x20 [ 633.491764][ T31] __x64_sys_exit_group+0x3f/0x40 [ 633.496839][ T31] x64_sys_call+0x832/0x9a0 [ 633.501347][ T31] do_syscall_64+0x4c/0xa0 [ 633.505786][ T31] ? clear_bhb_loop+0x50/0xa0 [ 633.510503][ T31] ? clear_bhb_loop+0x50/0xa0 [ 633.515198][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 633.521244][ T31] RIP: 0033:0x7f9aa8f15749 [ 633.525705][ T31] RSP: 002b:00007ffc9ff402f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 633.534160][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9aa8f15749 [ 633.542130][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 633.550252][ T31] RBP: 0000000000000003 R08: 000000059ff403ef R09: 00007f9aa913a280 [ 633.558246][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 633.566237][ T31] R13: 00007f9aa913a280 R14: 0000000000000003 R15: 00007ffc9ff403b0 [ 633.574233][ T31] [ 633.577340][ T31] INFO: task syz.4.19:398 blocked for more than 124 seconds. [ 633.584741][ T31] Not tainted syzkaller #0 [ 633.589688][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 633.598556][ T31] task:syz.4.19 state:D stack:25824 pid: 398 ppid: 388 flags:0x00004000 [ 633.607810][ T31] Call Trace: [ 633.611633][ T31] [ 633.615252][ T31] __schedule+0xb6e/0x14c0 [ 633.619688][ T31] ? release_firmware_map_entry+0x190/0x190 [ 633.625665][ T31] ? __kasan_check_write+0x14/0x20 [ 633.630794][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 633.635844][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 633.641535][ T31] schedule+0x11e/0x1e0 [ 633.645772][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 633.651491][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 633.657531][ T31] ? dput+0x47/0x90 [ 633.661348][ T31] ? kasan_save_stack+0x49/0x60 [ 633.666335][ T31] ? kasan_save_stack+0x3a/0x60 [ 633.671278][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 633.676927][ T31] ? call_rcu+0x105/0xfe0 [ 633.681319][ T31] ? __fput+0x590/0x8b0 [ 633.685514][ T31] ? ____fput+0x15/0x20 [ 633.689662][ T31] ? task_work_run+0x121/0x190 [ 633.694476][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 633.699864][ T31] ? rwsem_write_trylock+0x130/0x300 [ 633.705240][ T31] ? clear_nonspinnable+0x60/0x60 [ 633.710482][ T31] ? perf_event_exit_event+0x520/0x520 [ 633.716160][ T31] ? mutex_unlock+0x89/0x220 [ 633.720763][ T31] down_write+0x29/0x30 [ 633.725705][ T31] exit_mmap+0x127/0x860 [ 633.730307][ T31] ? vm_brk+0x30/0x30 [ 633.734326][ T31] ? mutex_unlock+0x89/0x220 [ 633.739062][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 633.744610][ T31] __mmput+0x93/0x320 [ 633.748690][ T31] ? mmput+0x48/0x150 [ 633.752793][ T31] mmput+0x50/0x150 [ 633.756710][ T31] do_exit+0x9d2/0x27a0 [ 633.761196][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 633.768174][ T31] ? put_task_struct+0x90/0x90 [ 633.773264][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 633.779550][ T31] do_group_exit+0x141/0x310 [ 633.784612][ T31] __x64_sys_exit_group+0x3f/0x40 [ 633.790332][ T31] x64_sys_call+0x832/0x9a0 [ 633.795666][ T31] do_syscall_64+0x4c/0xa0 [ 633.800521][ T31] ? clear_bhb_loop+0x50/0xa0 [ 633.805301][ T31] ? clear_bhb_loop+0x50/0xa0 [ 633.810398][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 633.817044][ T31] RIP: 0033:0x7f1f74297749 [ 633.821464][ T31] RSP: 002b:00007ffc71ecdec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 633.830143][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1f74297749 [ 633.838466][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 633.846579][ T31] RBP: 0000000000000003 R08: 0000000571ecdfbf R09: 00007f1f744bc280 [ 633.854570][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 633.862582][ T31] R13: 00007f1f744bc280 R14: 0000000000000003 R15: 00007ffc71ecdf80 [ 633.871049][ T31] [ 633.874143][ T31] NMI backtrace for cpu 0 [ 633.878640][ T31] CPU: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 [ 633.886313][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 633.896837][ T31] Call Trace: [ 633.900293][ T31] [ 633.903234][ T31] __dump_stack+0x21/0x30 [ 633.907565][ T31] dump_stack_lvl+0xee/0x150 [ 633.912456][ T31] ? show_regs_print_info+0x20/0x20 [ 633.917653][ T31] dump_stack+0x15/0x20 [ 633.921955][ T31] nmi_cpu_backtrace+0x2b4/0x2c0 [ 633.927080][ T31] ? rcu_read_unlock_special+0xab/0x460 [ 633.933152][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240 [ 633.939685][ T31] ? __rcu_read_unlock+0xa0/0xa0 [ 633.944744][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 633.950987][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 633.958058][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240 [ 633.964358][ T31] arch_trigger_cpumask_backtrace+0x10/0x20 [ 633.970590][ T31] watchdog+0xd64/0xea0 [ 633.975520][ T31] ? hungtask_pm_notify+0x50/0x50 [ 633.980620][ T31] ? __kasan_check_read+0x11/0x20 [ 633.986455][ T31] ? __kthread_parkme+0xac/0x200 [ 633.992029][ T31] ? preempt_count_add+0x90/0x1b0 [ 633.997054][ T31] kthread+0x411/0x500 [ 634.001640][ T31] ? hungtask_pm_notify+0x50/0x50 [ 634.006929][ T31] ? kthread_blkcg+0xd0/0xd0 [ 634.011895][ T31] ret_from_fork+0x1f/0x30 [ 634.016328][ T31] [ 634.019619][ T31] Sending NMI from CPU 0 to CPUs 1: [ 634.025213][ C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 [ 654.093002][ T31] INFO: task syz.2.17:373 blocked for more than 165 seconds. [ 654.100427][ T31] Not tainted syzkaller #0 [ 654.105596][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 654.114742][ T31] task:syz.2.17 state:D stack:25824 pid: 373 ppid: 362 flags:0x00004000 [ 654.124020][ T31] Call Trace: [ 654.127306][ T31] [ 654.130218][ T31] __schedule+0xb6e/0x14c0 [ 654.134653][ T31] ? release_firmware_map_entry+0x190/0x190 [ 654.140546][ T31] ? __kasan_check_write+0x14/0x20 [ 654.145673][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 654.150699][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 654.156262][ T31] schedule+0x11e/0x1e0 [ 654.160414][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 654.166142][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 654.172031][ T31] ? dput+0x47/0x90 [ 654.176003][ T31] ? kasan_save_stack+0x49/0x60 [ 654.180851][ T31] ? kasan_save_stack+0x3a/0x60 [ 654.185720][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 654.191349][ T31] ? call_rcu+0x105/0xfe0 [ 654.195685][ T31] ? __fput+0x590/0x8b0 [ 654.199834][ T31] ? ____fput+0x15/0x20 [ 654.204092][ T31] ? task_work_run+0x121/0x190 [ 654.208848][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 654.214229][ T31] ? rwsem_write_trylock+0x130/0x300 [ 654.219509][ T31] ? clear_nonspinnable+0x60/0x60 [ 654.224549][ T31] ? perf_event_exit_event+0x520/0x520 [ 654.230002][ T31] ? mutex_unlock+0x89/0x220 [ 654.234622][ T31] down_write+0x29/0x30 [ 654.238773][ T31] exit_mmap+0x127/0x860 [ 654.243036][ T31] ? vm_brk+0x30/0x30 [ 654.247008][ T31] ? mutex_unlock+0x89/0x220 [ 654.251578][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 654.256987][ T31] __mmput+0x93/0x320 [ 654.260969][ T31] ? mmput+0x48/0x150 [ 654.265047][ T31] mmput+0x50/0x150 [ 654.268848][ T31] do_exit+0x9d2/0x27a0 [ 654.273017][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 654.279079][ T31] ? put_task_struct+0x90/0x90 [ 654.283940][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 654.289569][ T31] ? ____fput+0x15/0x20 [ 654.293747][ T31] do_group_exit+0x141/0x310 [ 654.298419][ T31] ? debug_smp_processor_id+0x17/0x20 [ 654.303807][ T31] __x64_sys_exit_group+0x3f/0x40 [ 654.309267][ T31] x64_sys_call+0x832/0x9a0 [ 654.313779][ T31] do_syscall_64+0x4c/0xa0 [ 654.318224][ T31] ? clear_bhb_loop+0x50/0xa0 [ 654.322950][ T31] ? clear_bhb_loop+0x50/0xa0 [ 654.327624][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 654.333615][ T31] RIP: 0033:0x7f480d15b749 [ 654.338021][ T31] RSP: 002b:00007ffd6f262258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 654.346440][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f480d15b749 [ 654.354419][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 654.362377][ T31] RBP: 0000000000000003 R08: 000000056f26234f R09: 00007f480d380280 [ 654.370362][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 654.378340][ T31] R13: 00007f480d380280 R14: 0000000000000003 R15: 00007ffd6f262310 [ 654.386407][ T31] [ 654.389441][ T31] INFO: task syz.3.18:385 blocked for more than 165 seconds. [ 654.396922][ T31] Not tainted syzkaller #0 [ 654.401850][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 654.410645][ T31] task:syz.3.18 state:D stack:25824 pid: 385 ppid: 375 flags:0x00004000 [ 654.419867][ T31] Call Trace: [ 654.423167][ T31] [ 654.426089][ T31] __schedule+0xb6e/0x14c0 [ 654.430597][ T31] ? release_firmware_map_entry+0x190/0x190 [ 654.436504][ T31] ? __kasan_check_write+0x14/0x20 [ 654.441636][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 654.446764][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 654.452402][ T31] schedule+0x11e/0x1e0 [ 654.456576][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 654.462394][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 654.468306][ T31] ? dput+0x47/0x90 [ 654.472109][ T31] ? kasan_save_stack+0x49/0x60 [ 654.476980][ T31] ? kasan_save_stack+0x3a/0x60 [ 654.481829][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 654.487485][ T31] ? call_rcu+0x105/0xfe0 [ 654.491810][ T31] ? __fput+0x590/0x8b0 [ 654.496159][ T31] ? ____fput+0x15/0x20 [ 654.500313][ T31] ? task_work_run+0x121/0x190 [ 654.505180][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 654.510613][ T31] ? rwsem_write_trylock+0x130/0x300 [ 654.516003][ T31] ? clear_nonspinnable+0x60/0x60 [ 654.521016][ T31] ? perf_event_exit_event+0x520/0x520 [ 654.526480][ T31] ? mutex_unlock+0x89/0x220 [ 654.531177][ T31] down_write+0x29/0x30 [ 654.535377][ T31] exit_mmap+0x127/0x860 [ 654.539622][ T31] ? vm_brk+0x30/0x30 [ 654.543620][ T31] ? mutex_unlock+0x89/0x220 [ 654.548238][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 654.553451][ T31] __mmput+0x93/0x320 [ 654.557431][ T31] ? mmput+0x48/0x150 [ 654.561478][ T31] mmput+0x50/0x150 [ 654.565384][ T31] do_exit+0x9d2/0x27a0 [ 654.569549][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 654.575644][ T31] ? put_task_struct+0x90/0x90 [ 654.580536][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 654.586220][ T31] ? ____fput+0x15/0x20 [ 654.590378][ T31] do_group_exit+0x141/0x310 [ 654.595169][ T31] ? debug_smp_processor_id+0x17/0x20 [ 654.600553][ T31] __x64_sys_exit_group+0x3f/0x40 [ 654.605630][ T31] x64_sys_call+0x832/0x9a0 [ 654.610151][ T31] do_syscall_64+0x4c/0xa0 [ 654.614677][ T31] ? clear_bhb_loop+0x50/0xa0 [ 654.619358][ T31] ? clear_bhb_loop+0x50/0xa0 [ 654.624051][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 654.629948][ T31] RIP: 0033:0x7f9aa8f15749 [ 654.634511][ T31] RSP: 002b:00007ffc9ff402f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 654.643181][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9aa8f15749 [ 654.651221][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 654.659377][ T31] RBP: 0000000000000003 R08: 000000059ff403ef R09: 00007f9aa913a280 [ 654.667371][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 654.675346][ T31] R13: 00007f9aa913a280 R14: 0000000000000003 R15: 00007ffc9ff403b0 [ 654.683330][ T31] [ 654.686337][ T31] INFO: task syz.4.19:398 blocked for more than 145 seconds. [ 654.693702][ T31] Not tainted syzkaller #0 [ 654.698711][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 654.707502][ T31] task:syz.4.19 state:D stack:25824 pid: 398 ppid: 388 flags:0x00004000 [ 654.716818][ T31] Call Trace: [ 654.720174][ T31] [ 654.723207][ T31] __schedule+0xb6e/0x14c0 [ 654.727630][ T31] ? release_firmware_map_entry+0x190/0x190 [ 654.733804][ T31] ? __kasan_check_write+0x14/0x20 [ 654.738912][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 654.743958][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 654.749513][ T31] schedule+0x11e/0x1e0 [ 654.753794][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 654.759508][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 654.765941][ T31] ? dput+0x47/0x90 [ 654.769756][ T31] ? kasan_save_stack+0x49/0x60 [ 654.774618][ T31] ? kasan_save_stack+0x3a/0x60 [ 654.779459][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 654.785095][ T31] ? call_rcu+0x105/0xfe0 [ 654.789524][ T31] ? __fput+0x590/0x8b0 [ 654.793721][ T31] ? ____fput+0x15/0x20 [ 654.797882][ T31] ? task_work_run+0x121/0x190 [ 654.802728][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 654.808291][ T31] ? rwsem_write_trylock+0x130/0x300 [ 654.813656][ T31] ? clear_nonspinnable+0x60/0x60 [ 654.818812][ T31] ? perf_event_exit_event+0x520/0x520 [ 654.824328][ T31] ? mutex_unlock+0x89/0x220 [ 654.829011][ T31] down_write+0x29/0x30 [ 654.833183][ T31] exit_mmap+0x127/0x860 [ 654.837424][ T31] ? vm_brk+0x30/0x30 [ 654.841389][ T31] ? mutex_unlock+0x89/0x220 [ 654.845980][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 654.851176][ T31] __mmput+0x93/0x320 [ 654.855174][ T31] ? mmput+0x48/0x150 [ 654.859148][ T31] mmput+0x50/0x150 [ 654.862988][ T31] do_exit+0x9d2/0x27a0 [ 654.867225][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 654.873308][ T31] ? put_task_struct+0x90/0x90 [ 654.878065][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 654.883718][ T31] do_group_exit+0x141/0x310 [ 654.888299][ T31] __x64_sys_exit_group+0x3f/0x40 [ 654.893493][ T31] x64_sys_call+0x832/0x9a0 [ 654.898033][ T31] do_syscall_64+0x4c/0xa0 [ 654.902442][ T31] ? clear_bhb_loop+0x50/0xa0 [ 654.907258][ T31] ? clear_bhb_loop+0x50/0xa0 [ 654.911934][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 654.917855][ T31] RIP: 0033:0x7f1f74297749 [ 654.922261][ T31] RSP: 002b:00007ffc71ecdec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 654.930792][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1f74297749 [ 654.938843][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 654.946835][ T31] RBP: 0000000000000003 R08: 0000000571ecdfbf R09: 00007f1f744bc280 [ 654.954942][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 654.962924][ T31] R13: 00007f1f744bc280 R14: 0000000000000003 R15: 00007ffc71ecdf80 [ 654.970911][ T31] [ 654.973959][ T31] INFO: task syz.5.20:410 blocked for more than 125 seconds. [ 654.981423][ T31] Not tainted syzkaller #0 [ 654.986367][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 654.995048][ T31] task:syz.5.20 state:D stack:25824 pid: 410 ppid: 400 flags:0x00004000 [ 655.004779][ T31] Call Trace: [ 655.008050][ T31] [ 655.010960][ T31] __schedule+0xb6e/0x14c0 [ 655.015391][ T31] ? release_firmware_map_entry+0x190/0x190 [ 655.021289][ T31] ? __kasan_check_write+0x14/0x20 [ 655.026419][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 655.031459][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 655.037033][ T31] schedule+0x11e/0x1e0 [ 655.041220][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 655.046962][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 655.053044][ T31] ? dput+0x47/0x90 [ 655.056864][ T31] ? kasan_save_stack+0x49/0x60 [ 655.061777][ T31] ? kasan_save_stack+0x3a/0x60 [ 655.066873][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 655.072531][ T31] ? call_rcu+0x105/0xfe0 [ 655.076847][ T31] ? __fput+0x590/0x8b0 [ 655.081006][ T31] ? ____fput+0x15/0x20 [ 655.085203][ T31] ? task_work_run+0x121/0x190 [ 655.089957][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 655.095351][ T31] ? rwsem_write_trylock+0x130/0x300 [ 655.100633][ T31] ? clear_nonspinnable+0x60/0x60 [ 655.105691][ T31] ? perf_event_exit_event+0x520/0x520 [ 655.111254][ T31] ? mutex_unlock+0x89/0x220 [ 655.115876][ T31] down_write+0x29/0x30 [ 655.120023][ T31] exit_mmap+0x127/0x860 [ 655.124280][ T31] ? vm_brk+0x30/0x30 [ 655.128290][ T31] ? mutex_unlock+0x89/0x220 [ 655.132893][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 655.138086][ T31] __mmput+0x93/0x320 [ 655.142051][ T31] ? mmput+0x48/0x150 [ 655.146150][ T31] mmput+0x50/0x150 [ 655.149954][ T31] do_exit+0x9d2/0x27a0 [ 655.154235][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 655.160393][ T31] ? put_task_struct+0x90/0x90 [ 655.165274][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 655.170890][ T31] ? ____fput+0x15/0x20 [ 655.175145][ T31] do_group_exit+0x141/0x310 [ 655.179730][ T31] ? debug_smp_processor_id+0x17/0x20 [ 655.185112][ T31] __x64_sys_exit_group+0x3f/0x40 [ 655.190132][ T31] x64_sys_call+0x832/0x9a0 [ 655.194644][ T31] do_syscall_64+0x4c/0xa0 [ 655.199057][ T31] ? clear_bhb_loop+0x50/0xa0 [ 655.203739][ T31] ? clear_bhb_loop+0x50/0xa0 [ 655.208513][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 655.214427][ T31] RIP: 0033:0x7f77e0713749 [ 655.218837][ T31] RSP: 002b:00007ffce1b250e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 655.227306][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f77e0713749 [ 655.235422][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 655.243416][ T31] RBP: 0000000000000003 R08: 00000005e1b251df R09: 00007f77e0938280 [ 655.251474][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 655.259467][ T31] R13: 00007f77e0938280 R14: 0000000000000003 R15: 00007ffce1b251a0 [ 655.267547][ T31] [ 655.270567][ T31] NMI backtrace for cpu 0 [ 655.274866][ T31] CPU: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 [ 655.282041][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 655.292073][ T31] Call Trace: [ 655.295331][ T31] [ 655.298241][ T31] __dump_stack+0x21/0x30 [ 655.302551][ T31] dump_stack_lvl+0xee/0x150 [ 655.307208][ T31] ? show_regs_print_info+0x20/0x20 [ 655.312388][ T31] dump_stack+0x15/0x20 [ 655.316516][ T31] nmi_cpu_backtrace+0x2b4/0x2c0 [ 655.321437][ T31] ? rcu_read_unlock_special+0xab/0x460 [ 655.326960][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240 [ 655.333268][ T31] ? __rcu_read_unlock+0xa0/0xa0 [ 655.338181][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 655.344227][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 655.350276][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240 [ 655.356237][ T31] arch_trigger_cpumask_backtrace+0x10/0x20 [ 655.362110][ T31] watchdog+0xd64/0xea0 [ 655.366241][ T31] ? hungtask_pm_notify+0x50/0x50 [ 655.371242][ T31] ? __kasan_check_read+0x11/0x20 [ 655.376252][ T31] ? __kthread_parkme+0xac/0x200 [ 655.381169][ T31] ? preempt_count_add+0x90/0x1b0 [ 655.386179][ T31] kthread+0x411/0x500 [ 655.390223][ T31] ? hungtask_pm_notify+0x50/0x50 [ 655.395219][ T31] ? kthread_blkcg+0xd0/0xd0 [ 655.399781][ T31] ret_from_fork+0x1f/0x30 [ 655.404175][ T31] [ 655.407444][ T31] Sending NMI from CPU 0 to CPUs 1: [ 655.412771][ C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 [ 675.852679][ T31] INFO: task syz.2.17:373 blocked for more than 186 seconds. [ 675.860061][ T31] Not tainted syzkaller #0 [ 675.865192][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 675.873989][ T31] task:syz.2.17 state:D stack:25824 pid: 373 ppid: 362 flags:0x00004000 [ 675.883238][ T31] Call Trace: [ 675.886511][ T31] [ 675.889422][ T31] __schedule+0xb6e/0x14c0 [ 675.893839][ T31] ? release_firmware_map_entry+0x190/0x190 [ 675.899900][ T31] ? __kasan_check_write+0x14/0x20 [ 675.905023][ T31] ? _raw_spin_lock_irq+0x8f/0xe0 [ 675.910047][ T31] ? _raw_spin_lock_irqsave+0x110/0x110 [ 675.915604][ T31] schedule+0x11e/0x1e0 [ 675.919757][ T31] rwsem_down_write_slowpath+0xae5/0x1930 [ 675.925516][ T31] ? rwsem_down_read_slowpath+0x1230/0x1230 [ 675.931414][ T31] ? dput+0x47/0x90 [ 675.935249][ T31] ? kasan_save_stack+0x49/0x60 [ 675.940106][ T31] ? kasan_save_stack+0x3a/0x60 [ 675.944984][ T31] ? __kasan_record_aux_stack+0xd2/0x100 [ 675.950619][ T31] ? call_rcu+0x105/0xfe0 [ 675.955042][ T31] ? __fput+0x590/0x8b0 [ 675.959190][ T31] ? ____fput+0x15/0x20 [ 675.963374][ T31] ? task_work_run+0x121/0x190 [ 675.968240][ T31] ? exit_to_user_mode_loop+0xd0/0xe0 [ 675.973657][ T31] ? rwsem_write_trylock+0x130/0x300 [ 675.978945][ T31] ? clear_nonspinnable+0x60/0x60 [ 675.984102][ T31] ? perf_event_exit_event+0x520/0x520 [ 675.989566][ T31] ? mutex_unlock+0x89/0x220 [ 675.994288][ T31] down_write+0x29/0x30 [ 675.998437][ T31] exit_mmap+0x127/0x860 [ 676.002715][ T31] ? vm_brk+0x30/0x30 [ 676.006688][ T31] ? mutex_unlock+0x89/0x220 [ 676.011262][ T31] ? uprobe_clear_state+0x2c1/0x320 [ 676.016608][ T31] __mmput+0x93/0x320 [ 676.020620][ T31] ? mmput+0x48/0x150 [ 676.024747][ T31] mmput+0x50/0x150 [ 676.028549][ T31] do_exit+0x9d2/0x27a0 [ 676.032719][ T31] ? blkcg_maybe_throttle_current+0x1df/0x9e0 [ 676.038779][ T31] ? put_task_struct+0x90/0x90 [ 676.043653][ T31] ? __blkcg_punt_bio_submit+0x170/0x170 [ 676.049278][ T31] ? ____fput+0x15/0x20 [ 676.053448][ T31] do_group_exit+0x141/0x310 [ 676.058121][ T31] ? debug_smp_processor_id+0x17/0x20 [ 676.063646][ T31] __x64_sys_exit_group+0x3f/0x40 [ 676.068699][ T31] x64_sys_call+0x832/0x9a0 [ 676.073229][ T31] do_syscall_64+0x4c/0xa0 [ 676.077661][ T31] ? clear_bhb_loop+0x50/0xa0 [ 676.082329][ T31] ? clear_bhb_loop+0x50/0xa0 [ 676.087023][ T31] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 676.092927][ T31] RIP: 0033:0x7f480d15b749 [ 676.097327][ T31] RSP: 002b:00007ffd6f262258 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 676.105785][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f480d15b749 [ 676.113781][ T31] RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 [ 676.121734][ T31] RBP: 0000000000000003 R08: 000000056f26234f R09: 00007f480d380280 [ 676.129731][ T31] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [ 676.137743][ T31] R13: 00007f480d380280 R14: 0000000000000003 R15: 00007ffd6f262310 [ 676.145724][ T31] [ 676.148766][ T31] NMI backtrace for cpu 1 [ 676.153109][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 [ 676.160387][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 676.170418][ T31] Call Trace: [ 676.173678][ T31] [ 676.176617][ T31] __dump_stack+0x21/0x30 [ 676.180943][ T31] dump_stack_lvl+0xee/0x150 [ 676.185526][ T31] ? show_regs_print_info+0x20/0x20 [ 676.190794][ T31] dump_stack+0x15/0x20 [ 676.194950][ T31] nmi_cpu_backtrace+0x2b4/0x2c0 [ 676.199874][ T31] ? rcu_read_unlock_special+0xab/0x460 [ 676.205396][ T31] ? nmi_trigger_cpumask_backtrace+0x240/0x240 [ 676.211544][ T31] ? __rcu_read_unlock+0xa0/0xa0 [ 676.216458][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 676.222499][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 676.228604][ T31] nmi_trigger_cpumask_backtrace+0x138/0x240 [ 676.234566][ T31] arch_trigger_cpumask_backtrace+0x10/0x20 [ 676.240439][ T31] watchdog+0xd64/0xea0 [ 676.244721][ T31] ? hungtask_pm_notify+0x50/0x50 [ 676.249719][ T31] ? __kasan_check_read+0x11/0x20 [ 676.254717][ T31] ? __kthread_parkme+0xac/0x200 [ 676.259640][ T31] ? preempt_count_add+0x90/0x1b0 [ 676.264643][ T31] kthread+0x411/0x500 [ 676.268690][ T31] ? hungtask_pm_notify+0x50/0x50 [ 676.273687][ T31] ? kthread_blkcg+0xd0/0xd0 [ 676.278252][ T31] ret_from_fork+0x1f/0x30 [ 676.282735][ T31] [ 676.285972][ T31] Sending NMI from CPU 1 to CPUs 0: [ 676.291249][ C0] NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20