Warning: Permanently added '10.128.0.140' (ED25519) to the list of known hosts. 2025/12/20 23:13:07 ignoring optional flag "type"="gce" 2025/12/20 23:13:07 parsed 1 programs [ 43.557049][ T28] kauditd_printk_skb: 18 callbacks suppressed [ 43.557063][ T28] audit: type=1400 audit(1766272387.261:92): avc: denied { unlink } for pid=328 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" 2025/12/20 23:13:07 executed programs: 0 [ 43.628989][ T328] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 43.835988][ T347] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.843181][ T347] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.850871][ T347] device bridge_slave_0 entered promiscuous mode [ 43.872370][ T347] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.879567][ T347] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.887107][ T347] device bridge_slave_1 entered promiscuous mode [ 43.951977][ T344] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.959214][ T344] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.966758][ T344] device bridge_slave_0 entered promiscuous mode [ 43.973432][ T348] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.980536][ T348] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.988056][ T348] device bridge_slave_0 entered promiscuous mode [ 43.994997][ T348] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.002119][ T348] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.009557][ T348] device bridge_slave_1 entered promiscuous mode [ 44.022011][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.029115][ T344] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.036634][ T344] device bridge_slave_1 entered promiscuous mode [ 44.097806][ T350] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.104923][ T350] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.112550][ T350] device bridge_slave_0 entered promiscuous mode [ 44.119367][ T339] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.126426][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.134041][ T339] device bridge_slave_0 entered promiscuous mode [ 44.141172][ T339] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.148442][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.156015][ T339] device bridge_slave_1 entered promiscuous mode [ 44.173318][ T350] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.180470][ T350] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.187972][ T350] device bridge_slave_1 entered promiscuous mode [ 44.330706][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.337829][ T349] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.345313][ T349] device bridge_slave_0 entered promiscuous mode [ 44.363311][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.370470][ T349] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.378097][ T349] device bridge_slave_1 entered promiscuous mode [ 44.419207][ T347] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.426488][ T347] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.433792][ T347] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.440888][ T347] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.483891][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.490986][ T344] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.498316][ T344] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.505549][ T344] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.534078][ T348] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.541353][ T348] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.548852][ T348] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.555906][ T348] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.583295][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.590791][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.598423][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.605645][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.613016][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.620210][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.628710][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.636139][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.677484][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.685695][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.692760][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.700490][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.709334][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.716382][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.724057][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.758464][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.766070][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.774009][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.783344][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.790406][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.798125][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.815599][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.823291][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.850727][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.859871][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.868555][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.875615][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.907622][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 44.915875][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.924018][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 44.932530][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.940798][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.949243][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.957460][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.964659][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.972190][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.980721][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.989110][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.996231][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.003690][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.012231][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.020673][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.027726][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.035079][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.043507][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.051800][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.058892][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.066354][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.074529][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.082556][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.090810][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.099019][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.115864][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 45.124394][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.149379][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.157007][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.164450][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 45.173837][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.182551][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.190830][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.198983][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.207264][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.215209][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 45.223675][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.232055][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.240539][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.248800][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.255838][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.263389][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.275732][ T344] device veth0_vlan entered promiscuous mode [ 45.286242][ T348] device veth0_vlan entered promiscuous mode [ 45.298812][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.307141][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.314754][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.322874][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.331071][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.339236][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.347859][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.356069][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.363187][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.370898][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.378629][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.389403][ T347] device veth0_vlan entered promiscuous mode [ 45.407175][ T350] device veth0_vlan entered promiscuous mode [ 45.418430][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.426991][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.435038][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.442857][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.450796][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.459299][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.467596][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.476057][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.483688][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.499938][ T348] device veth1_macvtap entered promiscuous mode [ 45.509279][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.517517][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.525472][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.533954][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.543072][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.551700][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.565965][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.575283][ T347] device veth1_macvtap entered promiscuous mode [ 45.592888][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.601531][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 45.610095][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.618628][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.627317][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.635528][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.644148][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.659191][ T339] device veth0_vlan entered promiscuous mode [ 45.667309][ T344] device veth1_macvtap entered promiscuous mode [ 45.676340][ T350] device veth1_macvtap entered promiscuous mode [ 45.684050][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.691800][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.699529][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.707992][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.716410][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.724898][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.733481][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.742149][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.750704][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.759184][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.766215][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.773998][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.781614][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.789281][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.837196][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.850251][ T28] audit: type=1400 audit(1766272389.551:93): avc: denied { mounton } for pid=405 comm="syz-executor.0" path="/root/syzkaller-testdir2260865650/syzkaller.DI0gbe/0/bus" dev="sda1" ino=2048 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=file permissive=1 [ 45.853731][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.888424][ T408] loop0: detected capacity change from 0 to 518 [ 45.891447][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.923729][ T28] audit: type=1400 audit(1766272389.581:94): avc: denied { map } for pid=405 comm="syz-executor.0" path="/root/syzkaller-testdir2260865650/syzkaller.DI0gbe/0/bus" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 45.943686][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.968697][ T28] audit: type=1400 audit(1766272389.611:95): avc: denied { unmount } for pid=348 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=filesystem permissive=1 [ 45.987997][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.997258][ T421] loop0: detected capacity change from 0 to 512 [ 46.005766][ T420] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 5 prio class 2 [ 46.015637][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.024297][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.033431][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.042026][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.049130][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.057185][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.067019][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.079174][ T427] loop0: detected capacity change from 0 to 512 [ 46.085924][ T339] device veth1_macvtap entered promiscuous mode [ 46.093248][ T28] audit: type=1400 audit(1766272389.791:96): avc: denied { mounton } for pid=426 comm="syz-executor.0" path="/root/syzkaller-testdir2260865650/syzkaller.DI0gbe/3/file0" dev="sda1" ino=2046 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 46.133202][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.141493][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.150948][ T427] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 46.162700][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.171498][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.179925][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.188450][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.197482][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.233571][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.250969][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.265021][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.274163][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.295900][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 46.316113][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.346111][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 46.354962][ T446] loop3: detected capacity change from 0 to 512 [ 46.358881][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.384377][ T454] loop1: detected capacity change from 0 to 519 [ 46.392734][ T349] device veth0_vlan entered promiscuous mode [ 46.399673][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.413376][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.435922][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.453670][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.464547][ T349] device veth1_macvtap entered promiscuous mode [ 46.480796][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.488877][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.497671][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.508791][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.517422][ T406] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.551772][ T466] loop2: detected capacity change from 0 to 512 [ 46.560568][ T467] loop0: detected capacity change from 0 to 512 [ 46.571433][ T476] loop4: detected capacity change from 0 to 512 [ 46.589577][ T464] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 2 [ 46.607898][ T463] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 2 prio class 2 [ 46.616717][ T483] loop3: detected capacity change from 0 to 512 [ 46.624032][ T465] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 11 prio class 2 [ 46.633404][ T466] request_module fs- succeeded, but still no fs? [ 46.656047][ T485] loop1: detected capacity change from 0 to 512 [ 46.663596][ T491] loop3: detected capacity change from 0 to 512 [ 46.673293][ T489] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 2 [ 46.706118][ T494] loop2: detected capacity change from 0 to 512 [ 46.707611][ T493] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 21 prio class 2 [ 46.724484][ T499] loop0: detected capacity change from 0 to 512 [ 46.736291][ T501] loop4: detected capacity change from 0 to 512 [ 46.793320][ T521] loop5: detected capacity change from 0 to 512 [ 46.803986][ T519] loop1: detected capacity change from 0 to 512 [ 46.811392][ T517] I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 28 prio class 2 [ 46.825363][ T531] loop3: detected capacity change from 0 to 512 [ 46.829877][ T528] loop0: detected capacity change from 0 to 512 [ 46.846068][ T518] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 30 prio class 2 [ 46.899254][ T545] loop2: detected capacity change from 0 to 512 [ 46.920427][ T553] loop0: detected capacity change from 0 to 512 [ 46.934311][ T561] loop1: detected capacity change from 0 to 512 [ 46.950890][ T567] loop5: detected capacity change from 0 to 512 [ 46.980839][ T579] loop2: detected capacity change from 0 to 512 [ 46.992920][ T566] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 2 [ 47.009674][ T553] EXT4-fs error (device loop0): ext4_init_orphan_info:582: comm syz-executor.0: inode #0: comm syz-executor.0: iget: illegal inode # [ 47.029772][ T588] loop3: detected capacity change from 0 to 512 [ 47.039501][ T578] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 29 prio class 2 [ 47.051444][ T553] EXT4-fs (loop0): get orphan inode failed [ 47.052267][ T561] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 47.066729][ T28] audit: type=1400 audit(1766272390.771:97): avc: denied { mount } for pid=556 comm="syz-executor.1" name="/" dev="loop1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 47.066755][ T561] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/7/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.104959][ T553] EXT4-fs (loop0): mount failed [ 47.118122][ T28] audit: type=1400 audit(1766272390.821:98): avc: denied { unmount } for pid=350 comm="syz-executor.1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 47.126006][ T350] EXT4-fs (loop1): unmounting filesystem. [ 47.166004][ T602] loop2: detected capacity change from 0 to 512 [ 47.176048][ T597] loop4: detected capacity change from 0 to 512 [ 47.211988][ T617] loop5: detected capacity change from 0 to 512 [ 47.222731][ T616] loop3: detected capacity change from 0 to 512 [ 47.234552][ T614] Buffer I/O error on dev loop5, logical block 0, async page read [ 47.244140][ T623] loop0: detected capacity change from 0 to 512 [ 47.267340][ T628] loop4: detected capacity change from 0 to 512 [ 47.269068][ T602] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 47.307195][ T633] loop1: detected capacity change from 0 to 512 [ 47.322658][ T639] loop4: detected capacity change from 0 to 512 [ 47.322761][ T602] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/9/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.337532][ T642] loop3: detected capacity change from 0 to 512 [ 47.353218][ T638] loop5: detected capacity change from 0 to 512 [ 47.381753][ T339] EXT4-fs (loop2): unmounting filesystem. [ 47.394309][ T652] loop1: detected capacity change from 0 to 512 [ 47.436312][ T664] loop0: detected capacity change from 0 to 512 [ 47.456292][ T674] EXT4-fs warning (device loop1): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 47.480930][ T652] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 47.489125][ T664] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 47.497175][ T684] loop4: detected capacity change from 0 to 512 [ 47.506811][ T652] EXT4-fs (loop1): failed to initialize system zone (-117) [ 47.515656][ T689] loop2: detected capacity change from 0 to 512 [ 47.532594][ T652] EXT4-fs (loop1): mount failed [ 47.538730][ T691] EXT4-fs warning (device loop2): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 47.550568][ T689] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 47.559628][ T689] EXT4-fs (loop2): failed to initialize system zone (-117) [ 47.568460][ T689] EXT4-fs (loop2): mount failed [ 47.592545][ T703] loop4: detected capacity change from 0 to 512 [ 47.599441][ T699] loop0: detected capacity change from 0 to 512 [ 47.606118][ T697] loop3: detected capacity change from 0 to 512 [ 47.638399][ T712] loop5: detected capacity change from 0 to 512 [ 47.648693][ T703] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 47.681298][ T726] loop2: detected capacity change from 0 to 512 [ 47.718845][ T731] loop0: detected capacity change from 0 to 512 [ 47.722767][ T735] loop1: detected capacity change from 0 to 512 [ 47.775124][ T756] loop0: detected capacity change from 0 to 512 [ 47.787445][ T761] loop5: detected capacity change from 0 to 512 [ 47.814208][ T755] Buffer I/O error on dev loop0, logical block 0, async page read [ 47.823477][ T755] Buffer I/O error on dev loop0, logical block 0, async page read [ 47.852751][ T755] Buffer I/O error on dev loop0, logical block 0, async page read [ 47.870029][ T773] loop1: detected capacity change from 0 to 512 [ 47.893518][ T794] loop5: detected capacity change from 0 to 512 [ 47.899607][ T795] loop4: detected capacity change from 0 to 519 [ 47.912854][ T801] loop2: detected capacity change from 0 to 512 [ 47.920122][ T800] loop3: detected capacity change from 0 to 512 [ 47.930700][ T799] Buffer I/O error on dev loop3, logical block 0, async page read [ 47.942832][ T808] loop0: detected capacity change from 0 to 512 [ 47.950755][ T810] EXT4-fs warning (device loop5): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 47.957270][ T798] Buffer I/O error on dev loop2, logical block 0, async page read [ 47.969996][ T794] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 47.978632][ T805] Buffer I/O error on dev loop0, logical block 0, async page read [ 47.987459][ T805] Buffer I/O error on dev loop0, logical block 0, async page read [ 48.020593][ T820] loop2: detected capacity change from 0 to 512 [ 48.027124][ T794] EXT4-fs (loop5): failed to initialize system zone (-117) [ 48.035310][ T813] loop1: detected capacity change from 0 to 512 [ 48.041937][ T794] EXT4-fs (loop5): mount failed [ 48.049507][ T825] loop3: detected capacity change from 0 to 512 [ 48.058238][ T821] Buffer I/O error on dev loop3, logical block 0, async page read [ 48.094193][ T836] loop5: detected capacity change from 0 to 512 [ 48.098133][ T831] loop4: detected capacity change from 0 to 512 [ 48.120284][ T838] loop2: detected capacity change from 0 to 512 [ 48.130053][ T844] loop0: detected capacity change from 0 to 512 [ 48.151722][ T850] loop5: detected capacity change from 0 to 512 [ 48.175631][ T849] Buffer I/O error on dev loop5, logical block 0, async page read [ 48.198357][ T867] loop2: detected capacity change from 0 to 512 [ 48.222583][ T873] loop3: detected capacity change from 0 to 512 [ 48.254355][ T867] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 48.262445][ T888] loop5: detected capacity change from 0 to 519 [ 48.284538][ T891] loop0: detected capacity change from 0 to 512 [ 48.298560][ T898] loop3: detected capacity change from 0 to 512 [ 48.303662][ T902] loop5: detected capacity change from 0 to 512 [ 48.329634][ T909] loop4: detected capacity change from 0 to 512 [ 48.344304][ T912] loop1: detected capacity change from 0 to 512 [ 48.351582][ T902] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 48.353080][ T898] EXT4-fs (loop3): Magic mismatch, very weird! [ 48.377514][ T909] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 48.387875][ T912] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 48.429561][ T925] loop5: detected capacity change from 0 to 512 [ 48.455163][ T934] loop2: detected capacity change from 0 to 519 [ 48.467993][ T940] loop4: detected capacity change from 0 to 512 [ 48.485310][ T943] loop0: detected capacity change from 0 to 512 [ 48.511166][ T948] loop1: detected capacity change from 0 to 519 [ 48.523527][ T952] loop5: detected capacity change from 0 to 512 [ 48.540029][ T956] loop2: detected capacity change from 0 to 512 [ 48.573710][ T975] loop0: detected capacity change from 0 to 512 [ 48.586625][ T967] loop4: detected capacity change from 0 to 512 2025/12/20 23:13:12 executed programs: 191 [ 48.614591][ T975] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 48.674516][ T1008] loop4: detected capacity change from 0 to 512 [ 48.696119][ T1015] loop3: detected capacity change from 0 to 512 [ 48.717871][ T1021] loop0: detected capacity change from 0 to 512 [ 48.734349][ T1029] loop1: detected capacity change from 0 to 512 [ 48.745264][ T1028] loop2: detected capacity change from 0 to 512 [ 48.772932][ T1041] loop5: detected capacity change from 0 to 519 [ 48.822597][ T1053] loop4: detected capacity change from 0 to 512 [ 48.840511][ T1059] loop2: detected capacity change from 0 to 512 [ 48.843967][ T1057] loop0: detected capacity change from 0 to 518 [ 48.869583][ T1059] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 48.890568][ T1069] loop3: detected capacity change from 0 to 512 [ 48.923094][ T1080] loop4: detected capacity change from 0 to 512 [ 48.954741][ T1093] loop5: detected capacity change from 0 to 512 [ 48.963369][ T1086] loop1: detected capacity change from 0 to 519 [ 48.982052][ T1102] loop4: detected capacity change from 0 to 512 [ 49.008663][ T1111] loop2: detected capacity change from 0 to 512 [ 49.065767][ T1132] loop2: detected capacity change from 0 to 512 [ 49.083981][ T1136] loop1: detected capacity change from 0 to 512 [ 49.085005][ T1140] loop3: detected capacity change from 0 to 517 [ 49.103759][ T1138] loop0: detected capacity change from 0 to 512 [ 49.124580][ T1125] loop5: detected capacity change from 0 to 512 [ 49.131950][ T1143] loop4: detected capacity change from 0 to 512 [ 49.186106][ T1170] loop0: detected capacity change from 0 to 512 [ 49.189349][ T1162] loop4: detected capacity change from 0 to 519 [ 49.205020][ T1159] loop2: detected capacity change from 0 to 512 [ 49.220807][ T1179] loop3: detected capacity change from 0 to 512 [ 49.243154][ T1182] loop1: detected capacity change from 0 to 512 [ 49.266991][ T1190] loop4: detected capacity change from 0 to 512 [ 49.282598][ T1195] loop2: detected capacity change from 0 to 512 [ 49.285293][ T1197] loop0: detected capacity change from 0 to 512 [ 49.326060][ T1209] loop3: detected capacity change from 0 to 512 [ 49.354266][ T1219] loop1: detected capacity change from 0 to 512 [ 49.362122][ T1222] loop2: detected capacity change from 0 to 512 [ 49.365900][ T1190] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 49.385170][ T1224] loop5: detected capacity change from 0 to 512 [ 49.396627][ T1190] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/45/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.396818][ T1222] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 49.427873][ T1219] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 49.441337][ T1228] loop0: detected capacity change from 0 to 518 [ 49.457001][ T344] EXT4-fs (loop4): unmounting filesystem. [ 49.477677][ T1230] loop3: detected capacity change from 0 to 512 [ 49.498843][ T1228] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 49.513855][ T1241] loop5: detected capacity change from 0 to 512 [ 49.531365][ T1228] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/43/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.552030][ T1250] loop2: detected capacity change from 0 to 519 [ 49.563834][ T1250] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 49.574805][ T1241] EXT4-fs (loop5): Magic mismatch, very weird! [ 49.582087][ T348] EXT4-fs (loop0): unmounting filesystem. [ 49.611940][ T1263] loop4: detected capacity change from 0 to 512 [ 49.622422][ T1256] loop1: detected capacity change from 0 to 512 [ 49.632203][ T1263] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 49.659371][ T1272] loop5: detected capacity change from 0 to 512 [ 49.660974][ T1280] loop1: detected capacity change from 0 to 512 [ 49.676620][ T1263] EXT4-fs (loop4): group descriptors corrupted! [ 49.678013][ T1277] loop3: detected capacity change from 0 to 512 [ 49.721282][ T1293] loop5: detected capacity change from 0 to 512 [ 49.736032][ T1297] loop0: detected capacity change from 0 to 512 [ 49.755862][ T1280] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 49.767290][ T1280] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/46/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.786039][ T1311] loop4: detected capacity change from 0 to 519 [ 49.793188][ T1277] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 49.808002][ T1293] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 49.820630][ T1315] loop2: detected capacity change from 0 to 512 [ 49.827564][ T350] EXT4-fs (loop1): unmounting filesystem. [ 49.829589][ T1293] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/45/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.848355][ T1277] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/55/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.888783][ T1325] loop4: detected capacity change from 0 to 512 [ 49.900727][ T347] EXT4-fs (loop3): unmounting filesystem. [ 49.923462][ T349] EXT4-fs (loop5): unmounting filesystem. [ 49.934816][ T1331] loop2: detected capacity change from 0 to 512 [ 49.951883][ T1325] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 49.964956][ T1339] loop3: detected capacity change from 0 to 512 [ 49.977119][ T1343] loop0: detected capacity change from 0 to 512 [ 50.001235][ T1348] loop4: detected capacity change from 0 to 512 [ 50.012183][ T1344] loop1: detected capacity change from 0 to 512 [ 50.020774][ T1350] loop2: detected capacity change from 0 to 519 [ 50.028303][ T1354] loop5: detected capacity change from 0 to 512 [ 50.066738][ T1357] loop1: detected capacity change from 0 to 519 [ 50.099497][ T1375] loop0: detected capacity change from 0 to 512 [ 50.109409][ T1369] loop4: detected capacity change from 0 to 519 [ 50.146700][ T1375] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 50.174090][ T1399] loop2: detected capacity change from 0 to 512 [ 50.197271][ T1407] loop4: detected capacity change from 0 to 512 [ 50.226412][ T1418] loop5: detected capacity change from 0 to 512 [ 50.281251][ T1433] loop1: detected capacity change from 0 to 512 [ 50.290940][ T1444] loop2: detected capacity change from 0 to 512 [ 50.301360][ T1447] loop0: detected capacity change from 0 to 512 [ 50.319257][ T1450] loop5: detected capacity change from 0 to 512 [ 50.329308][ T1454] loop3: detected capacity change from 0 to 512 [ 50.346221][ T1459] loop4: detected capacity change from 0 to 512 [ 50.385828][ T1471] loop1: detected capacity change from 0 to 512 [ 50.400420][ T1475] loop2: detected capacity change from 0 to 519 [ 50.409136][ T1468] loop3: detected capacity change from 0 to 512 [ 50.425101][ T1478] loop0: detected capacity change from 0 to 512 [ 50.460891][ T1496] loop5: detected capacity change from 0 to 512 [ 50.469751][ T1492] loop2: detected capacity change from 0 to 512 [ 50.499753][ T1506] loop0: detected capacity change from 0 to 512 [ 50.523589][ T1512] loop3: detected capacity change from 0 to 512 [ 50.550617][ T1523] loop5: detected capacity change from 0 to 512 [ 50.558652][ T1519] loop2: detected capacity change from 0 to 512 [ 50.581791][ T1529] EXT4-fs warning (device loop3): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 50.584566][ T1531] loop0: detected capacity change from 0 to 512 [ 50.599210][ T1512] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 50.599247][ T1512] EXT4-fs (loop3): failed to initialize system zone (-117) [ 50.599291][ T1512] EXT4-fs (loop3): mount failed [ 50.644874][ T1539] loop4: detected capacity change from 0 to 512 [ 50.673815][ T1541] loop2: detected capacity change from 0 to 512 [ 50.673819][ T1547] loop3: detected capacity change from 0 to 512 [ 50.679166][ T1544] loop5: detected capacity change from 0 to 512 [ 50.697515][ T1547] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 50.752775][ T1569] loop2: detected capacity change from 0 to 512 [ 50.756880][ T1560] loop4: detected capacity change from 0 to 512 [ 50.768477][ T1563] loop1: detected capacity change from 0 to 512 [ 50.771438][ T1567] loop3: detected capacity change from 0 to 512 [ 50.794900][ T1576] loop5: detected capacity change from 0 to 519 [ 50.805232][ T1578] loop0: detected capacity change from 0 to 512 [ 50.818667][ T1563] EXT4-fs (loop1): Encoding requested by superblock is unknown [ 50.832188][ T1582] loop4: detected capacity change from 0 to 512 [ 50.853764][ T1585] loop2: detected capacity change from 0 to 512 [ 50.925758][ T1606] loop1: detected capacity change from 0 to 512 [ 50.932253][ T1604] loop5: detected capacity change from 0 to 512 [ 50.949652][ T1609] loop0: detected capacity change from 0 to 512 [ 50.987598][ T1617] loop2: detected capacity change from 0 to 512 [ 51.020160][ T1624] loop0: detected capacity change from 0 to 512 [ 51.026688][ T1636] loop1: detected capacity change from 0 to 512 [ 51.075675][ T1660] loop3: detected capacity change from 0 to 512 [ 51.098854][ T1668] loop0: detected capacity change from 0 to 512 [ 51.140902][ T1684] EXT4-fs warning (device loop0): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 51.152011][ T1668] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 51.152049][ T1668] EXT4-fs (loop0): failed to initialize system zone (-117) [ 51.152092][ T1668] EXT4-fs (loop0): mount failed [ 51.200381][ T1704] loop3: detected capacity change from 0 to 512 [ 51.212194][ T1707] loop2: detected capacity change from 0 to 512 [ 51.219173][ T1703] blk_print_req_error: 712 callbacks suppressed [ 51.219189][ T1703] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 51.240285][ T1715] loop0: detected capacity change from 0 to 512 [ 51.257152][ T1713] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 51.269710][ T1725] loop4: detected capacity change from 0 to 512 [ 51.279005][ T1713] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 51.313517][ T1733] loop2: detected capacity change from 0 to 519 [ 51.338196][ T1739] loop0: detected capacity change from 0 to 518 [ 51.349985][ T1742] loop4: detected capacity change from 0 to 519 [ 51.351977][ T1729] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 51.368562][ T1741] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 51.381037][ T1741] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 51.417568][ T1748] loop1: detected capacity change from 0 to 512 [ 51.427335][ T1759] loop5: detected capacity change from 0 to 512 [ 51.444985][ T1765] loop2: detected capacity change from 0 to 512 [ 51.456098][ T1764] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 51.463717][ T1756] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 51.485162][ T1768] loop0: detected capacity change from 0 to 512 [ 51.500609][ T1774] loop4: detected capacity change from 0 to 519 [ 51.502516][ T1767] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 51.519862][ T1767] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 51.540931][ T1774] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 51.554949][ T1777] loop3: detected capacity change from 0 to 512 [ 51.588864][ T1777] EXT4-fs (loop3): Magic mismatch, very weird! [ 51.598470][ T1787] loop1: detected capacity change from 0 to 519 [ 51.615756][ T1790] loop0: detected capacity change from 0 to 512 [ 51.655839][ T1802] loop3: detected capacity change from 0 to 512 [ 51.705832][ T1819] loop5: detected capacity change from 0 to 512 [ 51.713404][ T1826] loop2: detected capacity change from 0 to 519 [ 51.730681][ T1828] loop4: detected capacity change from 0 to 512 [ 51.745020][ T1836] loop3: detected capacity change from 0 to 512 [ 51.759812][ T1832] loop1: detected capacity change from 0 to 512 [ 51.783518][ T1843] loop0: detected capacity change from 0 to 512 [ 51.820634][ T1826] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 51.831184][ T1861] loop4: detected capacity change from 0 to 512 [ 51.839367][ T1858] loop1: detected capacity change from 0 to 512 [ 51.849569][ T1856] loop3: detected capacity change from 0 to 512 [ 51.856697][ T1826] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/72/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.875647][ T1865] loop5: detected capacity change from 0 to 512 [ 51.885402][ T1867] loop0: detected capacity change from 0 to 512 [ 51.895268][ T339] EXT4-fs (loop2): unmounting filesystem. [ 51.896780][ T1858] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 51.929903][ T1873] loop3: detected capacity change from 0 to 512 [ 51.931282][ T1867] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 51.987489][ T1886] loop4: detected capacity change from 0 to 512 [ 52.020741][ T1910] loop0: detected capacity change from 0 to 512 [ 52.060180][ T1915] loop1: detected capacity change from 0 to 512 [ 52.080389][ T1924] loop3: detected capacity change from 0 to 512 [ 52.118725][ T1946] loop4: detected capacity change from 0 to 512 [ 52.130744][ T1951] loop5: detected capacity change from 0 to 512 [ 52.140794][ T1942] loop2: detected capacity change from 0 to 512 [ 52.171516][ T1957] loop0: detected capacity change from 0 to 512 [ 52.196821][ T1963] loop3: detected capacity change from 0 to 512 [ 52.225713][ T1981] loop1: detected capacity change from 0 to 512 [ 52.250841][ T1984] loop3: detected capacity change from 0 to 512 [ 52.265938][ T1993] loop4: detected capacity change from 0 to 512 [ 52.274652][ T1987] loop5: detected capacity change from 0 to 512 [ 52.287143][ T1996] loop0: detected capacity change from 0 to 518 [ 52.311525][ T1993] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 52.330886][ T2007] loop5: detected capacity change from 0 to 512 [ 52.340184][ T2002] loop1: detected capacity change from 0 to 519 [ 52.350198][ T2011] loop2: detected capacity change from 0 to 519 [ 52.360861][ T2004] buffer_io_error: 812 callbacks suppressed [ 52.360877][ T2004] Buffer I/O error on dev loop5, logical block 0, async page read [ 52.379412][ T2005] Buffer I/O error on dev loop2, logical block 0, async page read [ 52.406076][ T2019] loop3: detected capacity change from 0 to 512 [ 52.428313][ T2023] loop4: detected capacity change from 0 to 512 [ 52.435252][ T2022] Buffer I/O error on dev loop4, logical block 0, async page read [ 52.493059][ T2048] loop2: detected capacity change from 0 to 512 [ 52.500308][ T2046] loop1: detected capacity change from 0 to 512 [ 52.506761][ T2041] loop3: detected capacity change from 0 to 517 [ 52.515602][ T2043] Buffer I/O error on dev loop2, logical block 0, async page read [ 52.523811][ T2043] Buffer I/O error on dev loop2, logical block 0, async page read [ 52.535313][ T2056] loop4: detected capacity change from 0 to 512 [ 52.561564][ T2043] Buffer I/O error on dev loop2, logical block 0, async page read [ 52.573149][ T2068] loop0: detected capacity change from 0 to 512 [ 52.599580][ T2072] loop5: detected capacity change from 0 to 512 [ 52.630128][ T2089] loop3: detected capacity change from 0 to 517 [ 52.657215][ T2085] Buffer I/O error on dev loop3, logical block 0, async page read [ 52.669405][ T2093] loop2: detected capacity change from 0 to 519 [ 52.714348][ T2120] loop1: detected capacity change from 0 to 512 [ 52.722193][ T2123] loop5: detected capacity change from 0 to 512 [ 52.733505][ T2119] Buffer I/O error on dev loop5, logical block 0, async page read [ 52.754200][ T2118] Buffer I/O error on dev loop1, logical block 0, async page read [ 52.762373][ T2118] Buffer I/O error on dev loop1, logical block 0, async page read [ 52.773390][ T2132] loop2: detected capacity change from 0 to 512 [ 52.798882][ T2141] loop3: detected capacity change from 0 to 512 [ 52.825704][ T2146] loop5: detected capacity change from 0 to 512 [ 52.840413][ T2155] loop1: detected capacity change from 0 to 512 [ 52.843653][ T2158] loop4: detected capacity change from 0 to 512 [ 52.865177][ T2165] loop0: detected capacity change from 0 to 512 [ 52.872413][ T2155] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 52.896320][ T2170] loop3: detected capacity change from 0 to 512 [ 52.927342][ T2179] loop4: detected capacity change from 0 to 512 [ 52.945731][ T2188] loop2: detected capacity change from 0 to 512 [ 52.952224][ T2191] loop5: detected capacity change from 0 to 512 [ 52.965300][ T2191] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 53.028062][ T2215] loop2: detected capacity change from 0 to 512 [ 53.042538][ T2222] loop3: detected capacity change from 0 to 512 [ 53.061102][ T2227] loop0: detected capacity change from 0 to 512 [ 53.102721][ T2239] loop5: detected capacity change from 0 to 512 [ 53.134692][ T2249] loop3: detected capacity change from 0 to 512 [ 53.149817][ T2266] loop4: detected capacity change from 0 to 512 [ 53.168080][ T2227] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 53.177152][ T2227] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/99/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.209957][ T2276] loop4: detected capacity change from 0 to 512 [ 53.220715][ T2272] loop5: detected capacity change from 0 to 512 [ 53.227369][ T2276] EXT4-fs (loop4): Magic mismatch, very weird! [ 53.232758][ T348] EXT4-fs (loop0): unmounting filesystem. [ 53.331494][ T2302] loop0: detected capacity change from 0 to 518 [ 53.351011][ T2312] loop1: detected capacity change from 0 to 512 [ 53.353534][ T2316] loop5: detected capacity change from 0 to 512 [ 53.389992][ T2326] loop3: detected capacity change from 0 to 512 [ 53.417427][ T2326] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 53.457725][ T2349] loop1: detected capacity change from 0 to 512 [ 53.485313][ T2363] loop2: detected capacity change from 0 to 512 [ 53.507751][ T2365] loop4: detected capacity change from 0 to 512 [ 53.509971][ T2371] loop5: detected capacity change from 0 to 512 [ 53.533603][ T2375] loop1: detected capacity change from 0 to 512 [ 53.563788][ T2383] loop3: detected capacity change from 0 to 517 [ 53.579860][ T2386] loop4: detected capacity change from 0 to 512 [ 53.586125][ T2392] loop2: detected capacity change from 0 to 512 [ 53.604381][ T2395] loop0: detected capacity change from 0 to 512 2025/12/20 23:13:17 executed programs: 654 [ 53.680956][ T2413] loop3: detected capacity change from 0 to 517 [ 53.688206][ T2421] loop4: detected capacity change from 0 to 512 [ 53.704338][ T2425] loop0: detected capacity change from 0 to 518 [ 53.757955][ T2439] loop1: detected capacity change from 0 to 512 [ 53.759806][ T2438] loop5: detected capacity change from 0 to 512 [ 53.792715][ T2458] loop3: detected capacity change from 0 to 512 [ 53.807947][ T2464] loop0: detected capacity change from 0 to 512 [ 53.820872][ T2470] loop4: detected capacity change from 0 to 512 [ 53.835150][ T2468] loop1: detected capacity change from 0 to 512 [ 53.879153][ T2479] loop1: detected capacity change from 0 to 512 [ 53.887361][ T2482] loop4: detected capacity change from 0 to 512 [ 53.942054][ T2506] loop4: detected capacity change from 0 to 512 [ 53.963434][ T2513] loop0: detected capacity change from 0 to 512 [ 53.994186][ T2531] loop5: detected capacity change from 0 to 512 [ 54.004220][ T2524] loop2: detected capacity change from 0 to 512 [ 54.042660][ T2547] loop4: detected capacity change from 0 to 512 [ 54.060224][ T2552] loop2: detected capacity change from 0 to 512 [ 54.087188][ T2558] loop5: detected capacity change from 0 to 512 [ 54.094142][ T2563] loop3: detected capacity change from 0 to 517 [ 54.113461][ T2569] loop1: detected capacity change from 0 to 512 [ 54.129454][ T2573] loop4: detected capacity change from 0 to 512 [ 54.136145][ T2574] loop2: detected capacity change from 0 to 512 [ 54.192841][ T2592] loop0: detected capacity change from 0 to 512 [ 54.210165][ T2603] loop4: detected capacity change from 0 to 512 [ 54.220549][ T2601] loop2: detected capacity change from 0 to 512 [ 54.227626][ T2598] loop5: detected capacity change from 0 to 512 [ 54.258172][ T2611] loop3: detected capacity change from 0 to 512 [ 54.273763][ T2616] loop1: detected capacity change from 0 to 512 [ 54.302609][ T2620] loop5: detected capacity change from 0 to 512 [ 54.338968][ T2640] loop3: detected capacity change from 0 to 512 [ 54.351321][ T2642] loop0: detected capacity change from 0 to 512 [ 54.365212][ T2647] loop4: detected capacity change from 0 to 512 [ 54.379270][ T2648] loop5: detected capacity change from 0 to 519 [ 54.398332][ T2660] loop2: detected capacity change from 0 to 512 [ 54.425191][ T2647] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 54.441016][ T2671] loop1: detected capacity change from 0 to 519 [ 54.462574][ T2674] loop2: detected capacity change from 0 to 512 [ 54.463236][ T2677] loop3: detected capacity change from 0 to 512 [ 54.504524][ T2677] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 54.513719][ T2683] loop0: detected capacity change from 0 to 512 [ 54.535928][ T2686] loop4: detected capacity change from 0 to 512 [ 54.551054][ T2691] loop1: detected capacity change from 0 to 519 [ 54.558634][ T2689] loop5: detected capacity change from 0 to 519 [ 54.580111][ T2696] loop0: detected capacity change from 0 to 518 [ 54.586241][ T2700] loop3: detected capacity change from 0 to 512 [ 54.624614][ T2707] loop4: detected capacity change from 0 to 512 [ 54.654170][ T2714] loop1: detected capacity change from 0 to 512 [ 54.663420][ T2725] loop5: detected capacity change from 0 to 512 [ 54.696583][ T2730] loop4: detected capacity change from 0 to 519 [ 54.732713][ T2749] loop3: detected capacity change from 0 to 512 [ 54.751446][ T2754] loop1: detected capacity change from 0 to 512 [ 54.768040][ T2753] loop4: detected capacity change from 0 to 512 [ 54.774652][ T2761] loop5: detected capacity change from 0 to 512 [ 54.796779][ T2753] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 54.817089][ T2771] loop3: detected capacity change from 0 to 512 [ 54.825168][ T2768] loop2: detected capacity change from 0 to 512 [ 54.840949][ T2780] loop5: detected capacity change from 0 to 512 [ 54.873562][ T2790] loop4: detected capacity change from 0 to 512 [ 54.902614][ T2798] loop2: detected capacity change from 0 to 512 [ 54.911687][ T2801] loop3: detected capacity change from 0 to 512 [ 54.933220][ T2790] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 54.957427][ T2816] loop5: detected capacity change from 0 to 512 [ 54.974190][ T2814] loop1: detected capacity change from 0 to 512 [ 55.010001][ T2828] loop4: detected capacity change from 0 to 512 [ 55.068696][ T2850] loop5: detected capacity change from 0 to 512 [ 55.103946][ T2859] loop4: detected capacity change from 0 to 512 [ 55.112063][ T2850] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 55.132217][ T2875] loop0: detected capacity change from 0 to 512 [ 55.141815][ T2850] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/132/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.166063][ T349] EXT4-fs (loop5): unmounting filesystem. [ 55.186868][ T2879] loop1: detected capacity change from 0 to 519 [ 55.204849][ T2890] loop2: detected capacity change from 0 to 512 [ 55.228961][ T2899] loop5: detected capacity change from 0 to 512 [ 55.240747][ T2896] loop0: detected capacity change from 0 to 512 [ 55.246355][ T2904] loop4: detected capacity change from 0 to 512 [ 55.256458][ T2895] loop1: detected capacity change from 0 to 512 [ 55.269213][ T2896] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 55.275968][ T2899] EXT4-fs (loop5): Magic mismatch, very weird! [ 55.318829][ T2914] loop1: detected capacity change from 0 to 512 [ 55.332563][ T2928] loop4: detected capacity change from 0 to 512 [ 55.340775][ T2920] loop5: detected capacity change from 0 to 519 [ 55.368505][ T2933] loop0: detected capacity change from 0 to 512 [ 55.380489][ T2938] loop3: detected capacity change from 0 to 512 [ 55.400079][ T2946] loop1: detected capacity change from 0 to 512 [ 55.408491][ T2943] loop2: detected capacity change from 0 to 512 [ 55.430916][ T2953] loop0: detected capacity change from 0 to 512 [ 55.443087][ T2956] loop3: detected capacity change from 0 to 512 [ 55.476780][ T2967] EXT4-fs warning (device loop3): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 55.492283][ T2963] loop5: detected capacity change from 0 to 512 [ 55.498910][ T2956] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 55.548962][ T2988] loop0: detected capacity change from 0 to 512 [ 55.549120][ T2956] EXT4-fs (loop3): failed to initialize system zone (-117) [ 55.565302][ T2991] loop4: detected capacity change from 0 to 512 [ 55.565335][ T2985] loop1: detected capacity change from 0 to 512 [ 55.577685][ T2956] EXT4-fs (loop3): mount failed [ 55.578956][ T2981] loop2: detected capacity change from 0 to 519 [ 55.597032][ T2991] EXT4-fs (loop4): Magic mismatch, very weird! [ 55.610958][ T2994] loop5: detected capacity change from 0 to 512 [ 55.651203][ T3009] loop1: detected capacity change from 0 to 512 [ 55.661344][ T3005] loop3: detected capacity change from 0 to 512 [ 55.711031][ T3034] loop4: detected capacity change from 0 to 512 [ 55.763720][ T3052] loop1: detected capacity change from 0 to 512 [ 55.771677][ T3053] loop3: detected capacity change from 0 to 517 [ 55.781826][ T3061] loop2: detected capacity change from 0 to 512 [ 55.807610][ T3070] loop4: detected capacity change from 0 to 512 [ 55.862291][ T3097] loop4: detected capacity change from 0 to 512 [ 55.872465][ T3099] loop1: detected capacity change from 0 to 512 [ 55.880611][ T3094] loop0: detected capacity change from 0 to 512 [ 55.902256][ T3106] loop5: detected capacity change from 0 to 512 [ 55.935622][ T3118] loop3: detected capacity change from 0 to 512 [ 55.943906][ T3114] loop0: detected capacity change from 0 to 512 [ 55.988229][ T3141] loop1: detected capacity change from 0 to 512 [ 56.013398][ T3147] loop4: detected capacity change from 0 to 512 [ 56.029732][ T3153] loop2: detected capacity change from 0 to 512 [ 56.068058][ T3165] loop5: detected capacity change from 0 to 512 [ 56.107171][ T3153] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 56.117051][ T3184] loop0: detected capacity change from 0 to 512 [ 56.131478][ T3186] loop1: detected capacity change from 0 to 512 [ 56.145944][ T3165] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 56.157846][ T3153] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/152/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.175662][ T3186] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 56.191117][ T3186] EXT4-fs (loop1): group descriptors corrupted! [ 56.197676][ T3165] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/148/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.213478][ T339] EXT4-fs (loop2): unmounting filesystem. [ 56.219105][ T3197] loop3: detected capacity change from 0 to 512 [ 56.237103][ T3184] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 56.246074][ T3184] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/155/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.262619][ T3202] loop4: detected capacity change from 0 to 512 [ 56.275567][ T3206] loop2: detected capacity change from 0 to 512 [ 56.284285][ T3201] blk_print_req_error: 839 callbacks suppressed [ 56.284300][ T3201] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 17 prio class 2 [ 56.301692][ T349] EXT4-fs (loop5): unmounting filesystem. [ 56.308088][ T3197] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.319038][ T348] EXT4-fs (loop0): unmounting filesystem. [ 56.350920][ T3215] loop4: detected capacity change from 0 to 512 [ 56.369272][ T3212] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 56.387309][ T3206] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 56.396420][ T3212] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 56.406973][ T3206] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/153/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.426548][ T3226] loop3: detected capacity change from 0 to 512 [ 56.444715][ T3225] loop5: detected capacity change from 0 to 512 [ 56.451782][ T339] EXT4-fs (loop2): unmounting filesystem. [ 56.464073][ T3230] loop0: detected capacity change from 0 to 512 [ 56.490185][ T3236] loop5: detected capacity change from 0 to 512 [ 56.500919][ T3245] loop3: detected capacity change from 0 to 512 [ 56.512462][ T3247] loop4: detected capacity change from 0 to 512 [ 56.535265][ T3236] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.549656][ T3254] loop0: detected capacity change from 0 to 512 [ 56.578075][ T3263] loop3: detected capacity change from 0 to 512 [ 56.588974][ T3265] loop2: detected capacity change from 0 to 512 [ 56.606386][ T3263] EXT4-fs (loop3): Encoding requested by superblock is unknown [ 56.630335][ T3268] loop4: detected capacity change from 0 to 512 [ 56.650813][ T3284] loop2: detected capacity change from 0 to 512 [ 56.651107][ T3286] loop1: detected capacity change from 0 to 512 [ 56.666996][ T3280] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 28 prio class 2 [ 56.680288][ T3280] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 56.695173][ T3290] loop0: detected capacity change from 0 to 512 [ 56.708755][ T3296] loop3: detected capacity change from 0 to 512 [ 56.714140][ T3280] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 56.725567][ T3286] EXT4-fs (loop1): failed to initialize system zone (-117) [ 56.748050][ T3286] EXT4-fs (loop1): mount failed [ 56.769667][ T3308] loop2: detected capacity change from 0 to 519 [ 56.780807][ T3305] loop3: detected capacity change from 0 to 517 [ 56.791390][ T3268] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 56.805477][ T3268] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/153/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.822294][ T3305] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.851015][ T3314] loop0: detected capacity change from 0 to 512 [ 56.854621][ T3317] loop1: detected capacity change from 0 to 512 [ 56.865711][ T344] EXT4-fs (loop4): unmounting filesystem. [ 56.871945][ T3313] loop5: detected capacity change from 0 to 512 [ 56.882080][ T3311] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 56.894041][ T3311] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 56.909156][ T3313] EXT4-fs (loop5): Magic mismatch, very weird! [ 56.913596][ T3324] loop3: detected capacity change from 0 to 512 [ 56.959439][ T3337] loop2: detected capacity change from 0 to 512 [ 56.967100][ T3334] loop4: detected capacity change from 0 to 512 [ 56.974107][ T3317] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 56.989433][ T3317] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/159/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 57.000617][ T3333] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 28 prio class 2 [ 57.031189][ T3350] loop3: detected capacity change from 0 to 512 [ 57.057674][ T350] EXT4-fs (loop1): unmounting filesystem. [ 57.064587][ T3347] loop0: detected capacity change from 0 to 512 [ 57.109686][ T3364] loop2: detected capacity change from 0 to 512 [ 57.151664][ T3376] loop1: detected capacity change from 0 to 512 [ 57.163954][ T3379] loop3: detected capacity change from 0 to 512 [ 57.178247][ T3369] I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 2 [ 57.190457][ T3390] EXT4-fs warning (device loop2): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 57.199997][ T3382] loop5: detected capacity change from 0 to 519 [ 57.205934][ T3364] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 57.228632][ T3396] loop4: detected capacity change from 0 to 512 [ 57.246489][ T3364] EXT4-fs (loop2): failed to initialize system zone (-117) [ 57.264698][ T3364] EXT4-fs (loop2): mount failed [ 57.282962][ T3403] loop5: detected capacity change from 0 to 512 [ 57.294320][ T3412] loop3: detected capacity change from 0 to 512 [ 57.326750][ T3409] loop1: detected capacity change from 0 to 512 [ 57.342385][ T3421] loop2: detected capacity change from 0 to 512 [ 57.349074][ T3418] loop0: detected capacity change from 0 to 512 [ 57.389864][ T3430] loop5: detected capacity change from 0 to 519 [ 57.426840][ T3442] loop1: detected capacity change from 0 to 512 [ 57.488664][ T3442] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 57.508940][ T3479] loop3: detected capacity change from 0 to 517 [ 57.513255][ T3484] loop5: detected capacity change from 0 to 512 [ 57.529286][ T3480] loop4: detected capacity change from 0 to 512 [ 57.536368][ T3487] loop0: detected capacity change from 0 to 512 [ 57.543177][ T3476] buffer_io_error: 712 callbacks suppressed [ 57.543194][ T3476] Buffer I/O error on dev loop5, logical block 0, async page read [ 57.572280][ T3495] loop4: detected capacity change from 0 to 512 [ 57.581049][ T3494] Buffer I/O error on dev loop4, logical block 0, async page read [ 57.599898][ T3494] Buffer I/O error on dev loop4, logical block 0, async page read [ 57.652107][ T3523] loop1: detected capacity change from 0 to 512 [ 57.662735][ T3522] Buffer I/O error on dev loop1, logical block 0, async page read [ 57.679851][ T3528] loop5: detected capacity change from 0 to 512 [ 57.709725][ T3538] loop2: detected capacity change from 0 to 512 [ 57.726854][ T3528] EXT4-fs (loop5): Magic mismatch, very weird! [ 57.738195][ T3544] loop0: detected capacity change from 0 to 512 [ 57.762800][ T3555] loop3: detected capacity change from 0 to 512 [ 57.786238][ T3564] loop4: detected capacity change from 0 to 512 [ 57.802784][ T3570] loop1: detected capacity change from 0 to 512 [ 57.823162][ T3568] Buffer I/O error on dev loop1, logical block 0, async page read [ 57.831782][ T3564] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 57.853373][ T3581] loop3: detected capacity change from 0 to 512 [ 57.859918][ T3568] Buffer I/O error on dev loop1, logical block 0, async page read [ 57.862580][ T3564] EXT4-fs (loop4): group descriptors corrupted! [ 57.908342][ T3597] loop5: detected capacity change from 0 to 512 [ 57.938337][ T3610] loop1: detected capacity change from 0 to 512 [ 57.942891][ T3605] loop3: detected capacity change from 0 to 512 [ 57.964130][ T3597] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 57.973383][ T3604] Buffer I/O error on dev loop3, logical block 0, async page read [ 58.006270][ T3597] EXT4-fs (loop5): failed to initialize system zone (-117) [ 58.021329][ T3610] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 58.038563][ T3597] EXT4-fs (loop5): mount failed [ 58.068367][ T3629] loop4: detected capacity change from 0 to 512 [ 58.088460][ T3642] loop0: detected capacity change from 0 to 518 [ 58.095555][ T3632] Buffer I/O error on dev loop0, logical block 0, async page read [ 58.117160][ T3629] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 58.149205][ T3647] loop3: detected capacity change from 0 to 512 [ 58.185977][ T3671] loop0: detected capacity change from 0 to 512 [ 58.197048][ T3670] Buffer I/O error on dev loop0, logical block 0, async page read [ 58.219210][ T3682] loop2: detected capacity change from 0 to 512 [ 58.237197][ T3682] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 58.288669][ T3701] loop1: detected capacity change from 0 to 512 [ 58.295430][ T3707] loop0: detected capacity change from 0 to 512 [ 58.310310][ T3713] loop3: detected capacity change from 0 to 512 [ 58.320921][ T3716] loop2: detected capacity change from 0 to 512 [ 58.341858][ T3722] loop5: detected capacity change from 0 to 512 [ 58.356981][ T3712] Buffer I/O error on dev loop3, logical block 0, async page read [ 58.371210][ T3725] loop1: detected capacity change from 0 to 519 [ 58.407759][ T3739] loop4: detected capacity change from 0 to 512 [ 58.426882][ T3739] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 58.459689][ T3759] loop2: detected capacity change from 0 to 512 [ 58.475345][ T3767] loop3: detected capacity change from 0 to 512 [ 58.483357][ T3762] loop0: detected capacity change from 0 to 518 [ 58.508899][ T3773] loop4: detected capacity change from 0 to 512 [ 58.515468][ T3765] loop5: detected capacity change from 0 to 512 [ 58.537865][ T3767] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 58.561681][ T3767] EXT4-fs (loop3): group descriptors corrupted! 2025/12/20 23:13:22 executed programs: 1113 [ 58.594134][ T3798] loop2: detected capacity change from 0 to 512 [ 58.598959][ T3799] loop0: detected capacity change from 0 to 512 [ 58.628767][ T3808] loop4: detected capacity change from 0 to 512 [ 58.717166][ T3822] loop3: detected capacity change from 0 to 512 [ 58.719025][ T3819] loop1: detected capacity change from 0 to 512 [ 58.730144][ T3830] loop2: detected capacity change from 0 to 512 [ 58.730157][ T3826] loop4: detected capacity change from 0 to 512 [ 58.755880][ T3839] loop5: detected capacity change from 0 to 512 [ 58.776496][ T3842] loop2: detected capacity change from 0 to 512 [ 58.818936][ T3861] loop1: detected capacity change from 0 to 512 [ 58.846242][ T3861] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 58.857439][ T3861] EXT4-fs (loop1): failed to initialize system zone (-117) [ 58.865212][ T3875] loop0: detected capacity change from 0 to 512 [ 58.866309][ T3861] EXT4-fs (loop1): mount failed [ 58.871723][ T3867] loop5: detected capacity change from 0 to 512 [ 58.885016][ T3883] loop4: detected capacity change from 0 to 512 [ 58.922201][ T3896] loop4: detected capacity change from 0 to 512 [ 58.958185][ T3911] loop3: detected capacity change from 0 to 512 [ 58.982392][ T3911] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 58.990321][ T3914] loop0: detected capacity change from 0 to 512 [ 59.043553][ T3939] loop3: detected capacity change from 0 to 512 [ 59.066141][ T3941] loop5: detected capacity change from 0 to 512 [ 59.079450][ T3950] loop0: detected capacity change from 0 to 512 [ 59.096060][ T3945] loop2: detected capacity change from 0 to 519 [ 59.103331][ T3950] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 59.116987][ T3941] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 59.127003][ T3956] loop1: detected capacity change from 0 to 512 [ 59.135362][ T3950] EXT4-fs (loop0): group descriptors corrupted! [ 59.141978][ T3941] EXT4-fs (loop5): group descriptors corrupted! [ 59.159022][ T3962] loop4: detected capacity change from 0 to 512 [ 59.196391][ T3971] loop0: detected capacity change from 0 to 512 [ 59.218937][ T3984] loop4: detected capacity change from 0 to 512 [ 59.227248][ T3981] loop1: detected capacity change from 0 to 512 [ 59.237728][ T3990] loop2: detected capacity change from 0 to 512 [ 59.273418][ T4007] loop1: detected capacity change from 0 to 512 [ 59.282369][ T3999] loop4: detected capacity change from 0 to 519 [ 59.303692][ T4013] loop3: detected capacity change from 0 to 512 [ 59.332808][ T4019] loop4: detected capacity change from 0 to 512 [ 59.342023][ T4025] loop5: detected capacity change from 0 to 512 [ 59.345356][ T4022] loop2: detected capacity change from 0 to 512 [ 59.373639][ T4028] loop0: detected capacity change from 0 to 512 [ 59.403919][ T4043] loop2: detected capacity change from 0 to 512 [ 59.419969][ T4051] loop1: detected capacity change from 0 to 512 [ 59.422286][ T4053] loop3: detected capacity change from 0 to 512 [ 59.457509][ T4058] loop4: detected capacity change from 0 to 512 [ 59.478234][ T4068] loop0: detected capacity change from 0 to 512 [ 59.494281][ T4070] loop1: detected capacity change from 0 to 512 [ 59.511556][ T4076] loop3: detected capacity change from 0 to 512 [ 59.524417][ T4080] loop4: detected capacity change from 0 to 512 [ 59.540888][ T4086] loop5: detected capacity change from 0 to 512 [ 59.558487][ T4091] loop2: detected capacity change from 0 to 512 [ 59.571853][ T4095] loop0: detected capacity change from 0 to 512 [ 59.627229][ T4116] loop1: detected capacity change from 0 to 512 [ 59.640864][ T4109] loop5: detected capacity change from 0 to 512 [ 59.676645][ T4109] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 59.714359][ T4149] loop3: detected capacity change from 0 to 512 [ 59.728363][ T4144] loop1: detected capacity change from 0 to 512 [ 59.742732][ T4155] loop0: detected capacity change from 0 to 512 [ 59.775654][ T4174] loop4: detected capacity change from 0 to 512 [ 59.805026][ T4149] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 59.823809][ T4149] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/197/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 59.868229][ T4193] loop2: detected capacity change from 0 to 512 [ 59.899099][ T347] EXT4-fs (loop3): unmounting filesystem. [ 59.922401][ T4207] loop0: detected capacity change from 0 to 512 [ 59.939669][ T4209] loop4: detected capacity change from 0 to 512 [ 59.946293][ T4204] loop1: detected capacity change from 0 to 512 [ 59.963563][ T4217] loop3: detected capacity change from 0 to 512 [ 59.989027][ T4222] loop5: detected capacity change from 0 to 512 [ 60.009805][ T4236] loop4: detected capacity change from 0 to 512 [ 60.029945][ T4222] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 60.047102][ T4231] loop3: detected capacity change from 0 to 517 [ 60.058205][ T4247] EXT4-fs warning (device loop4): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 60.069461][ T4236] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 60.081514][ T4251] loop1: detected capacity change from 0 to 512 [ 60.081546][ T4253] loop0: detected capacity change from 0 to 512 [ 60.099344][ T4236] EXT4-fs (loop4): failed to initialize system zone (-117) [ 60.129741][ T4236] EXT4-fs (loop4): mount failed [ 60.134910][ T4257] EXT4-fs warning (device loop0): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 60.150281][ T4251] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 60.159922][ T4260] loop3: detected capacity change from 0 to 512 [ 60.160365][ T4253] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 60.181512][ T4268] loop2: detected capacity change from 0 to 512 [ 60.189395][ T4251] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/207/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 60.204895][ T4253] EXT4-fs (loop0): failed to initialize system zone (-117) [ 60.219425][ T350] EXT4-fs (loop1): unmounting filesystem. [ 60.232746][ T4277] loop5: detected capacity change from 0 to 512 [ 60.241603][ T4253] EXT4-fs (loop0): mount failed [ 60.252152][ T4281] loop2: detected capacity change from 0 to 512 [ 60.284066][ T4285] loop3: detected capacity change from 0 to 512 [ 60.311789][ T4298] loop4: detected capacity change from 0 to 519 [ 60.324948][ T4290] loop0: detected capacity change from 0 to 512 [ 60.332931][ T4295] loop5: detected capacity change from 0 to 519 [ 60.362871][ T4312] loop4: detected capacity change from 0 to 512 [ 60.391102][ T4320] loop2: detected capacity change from 0 to 512 [ 60.397846][ T4321] loop5: detected capacity change from 0 to 512 [ 60.436539][ T4340] loop1: detected capacity change from 0 to 512 [ 60.463055][ T4353] loop5: detected capacity change from 0 to 512 [ 60.473123][ T4355] loop0: detected capacity change from 0 to 512 [ 60.500512][ T4362] loop4: detected capacity change from 0 to 512 [ 60.524184][ T4368] loop0: detected capacity change from 0 to 512 [ 60.550405][ T4353] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 60.564442][ T4385] loop0: detected capacity change from 0 to 512 [ 60.585304][ T4381] loop2: detected capacity change from 0 to 512 [ 60.593577][ T4353] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/209/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 60.613237][ T4388] loop1: detected capacity change from 0 to 512 [ 60.647838][ T4400] loop0: detected capacity change from 0 to 512 [ 60.655323][ T4401] loop2: detected capacity change from 0 to 512 [ 60.671390][ T349] EXT4-fs (loop5): unmounting filesystem. [ 60.688438][ T4400] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 60.709111][ T4412] loop3: detected capacity change from 0 to 512 [ 60.716238][ T4414] loop1: detected capacity change from 0 to 512 [ 60.752356][ T4426] loop5: detected capacity change from 0 to 512 [ 60.761624][ T4430] loop0: detected capacity change from 0 to 512 [ 60.778290][ T4435] loop4: detected capacity change from 0 to 512 [ 60.807406][ T4444] loop1: detected capacity change from 0 to 512 [ 60.816084][ T4440] loop3: detected capacity change from 0 to 512 [ 60.831669][ T4450] loop2: detected capacity change from 0 to 512 [ 60.855925][ T4444] EXT4-fs (loop1): Magic mismatch, very weird! [ 60.891913][ T4475] loop0: detected capacity change from 0 to 512 [ 60.913917][ T4482] loop5: detected capacity change from 0 to 512 [ 60.965157][ T4507] loop0: detected capacity change from 0 to 512 [ 60.991048][ T4517] loop5: detected capacity change from 0 to 519 [ 60.995349][ T4512] loop3: detected capacity change from 0 to 512 [ 61.031644][ T4529] loop4: detected capacity change from 0 to 512 [ 61.048595][ T4541] loop2: detected capacity change from 0 to 512 [ 61.060196][ T4539] loop3: detected capacity change from 0 to 512 [ 61.072776][ T4517] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 61.082681][ T4529] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 61.098237][ T4517] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/216/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.131505][ T4550] loop0: detected capacity change from 0 to 512 [ 61.131778][ T349] EXT4-fs (loop5): unmounting filesystem. [ 61.144686][ T4554] loop4: detected capacity change from 0 to 512 [ 61.151798][ T4552] loop1: detected capacity change from 0 to 512 [ 61.162414][ T4558] loop2: detected capacity change from 0 to 512 [ 61.179005][ T4564] loop3: detected capacity change from 0 to 512 [ 61.188379][ T4561] loop5: detected capacity change from 0 to 512 [ 61.234576][ T4554] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 61.245250][ T4552] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 61.278558][ T4552] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/225/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.313531][ T4594] loop2: detected capacity change from 0 to 512 [ 61.322121][ T4554] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/226/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.340195][ T4590] blk_print_req_error: 724 callbacks suppressed [ 61.340213][ T4590] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 61.359959][ T350] EXT4-fs (loop1): unmounting filesystem. [ 61.383816][ T4609] loop2: detected capacity change from 0 to 512 [ 61.390754][ T344] EXT4-fs (loop4): unmounting filesystem. [ 61.399064][ T4608] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 61.417387][ T4603] loop1: detected capacity change from 0 to 519 [ 61.429127][ T4613] loop5: detected capacity change from 0 to 512 [ 61.439571][ T4617] loop4: detected capacity change from 0 to 512 [ 61.473600][ T4613] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 61.489058][ T4613] EXT4-fs (loop5): failed to initialize system zone (-117) [ 61.496714][ T4613] EXT4-fs (loop5): mount failed [ 61.505089][ T4617] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 61.514315][ T4617] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/227/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.552400][ T344] EXT4-fs (loop4): unmounting filesystem. [ 61.553042][ T4645] loop3: detected capacity change from 0 to 512 [ 61.564681][ T4641] loop2: detected capacity change from 0 to 512 [ 61.576639][ T4649] loop1: detected capacity change from 0 to 512 [ 61.585764][ T4642] loop0: detected capacity change from 0 to 518 [ 61.631877][ T4669] loop4: detected capacity change from 0 to 512 [ 61.642207][ T4671] loop5: detected capacity change from 0 to 512 [ 61.672919][ T4669] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 61.686040][ T4686] loop2: detected capacity change from 0 to 512 [ 61.694229][ T4668] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 30 prio class 2 [ 61.708309][ T4688] loop1: detected capacity change from 0 to 512 [ 61.714591][ T4685] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 61.747549][ T4697] loop0: detected capacity change from 0 to 512 [ 61.759004][ T4691] loop3: detected capacity change from 0 to 512 [ 61.776856][ T4700] loop5: detected capacity change from 0 to 512 [ 61.789846][ T4705] loop4: detected capacity change from 0 to 512 [ 61.797747][ T4697] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 61.809043][ T4704] loop1: detected capacity change from 0 to 512 [ 61.842371][ T4716] loop5: detected capacity change from 0 to 512 [ 61.856197][ T4721] loop0: detected capacity change from 0 to 512 [ 61.869714][ T4720] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 61.907181][ T4730] loop3: detected capacity change from 0 to 517 [ 61.910118][ T4735] loop4: detected capacity change from 0 to 512 [ 61.925755][ T4716] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 61.938521][ T4741] loop1: detected capacity change from 0 to 512 [ 61.947081][ T4716] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/225/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.979839][ T4747] loop3: detected capacity change from 0 to 512 [ 61.986253][ T4745] loop0: detected capacity change from 0 to 512 [ 61.987349][ T4750] loop2: detected capacity change from 0 to 512 [ 62.005513][ T349] EXT4-fs (loop5): unmounting filesystem. [ 62.011512][ T4750] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.049855][ T4756] loop4: detected capacity change from 0 to 512 [ 62.068015][ T4760] loop3: detected capacity change from 0 to 512 [ 62.080207][ T4765] loop2: detected capacity change from 0 to 512 [ 62.090846][ T4763] loop0: detected capacity change from 0 to 512 [ 62.090863][ T4755] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 2 [ 62.145311][ T4784] loop0: detected capacity change from 0 to 512 [ 62.159499][ T4790] loop5: detected capacity change from 0 to 512 [ 62.166649][ T4781] loop2: detected capacity change from 0 to 512 [ 62.173352][ T4791] loop1: detected capacity change from 0 to 512 [ 62.208431][ T4780] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 62.242734][ T4814] loop1: detected capacity change from 0 to 512 [ 62.271843][ T4823] loop5: detected capacity change from 0 to 512 [ 62.279407][ T4820] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 30 prio class 2 [ 62.296648][ T4829] loop3: detected capacity change from 0 to 512 [ 62.306620][ T4821] loop0: detected capacity change from 0 to 518 [ 62.346313][ T4844] loop3: detected capacity change from 0 to 512 [ 62.358457][ T4853] loop1: detected capacity change from 0 to 512 [ 62.384836][ T4867] loop0: detected capacity change from 0 to 512 [ 62.390693][ T4861] loop4: detected capacity change from 0 to 519 [ 62.417290][ T4873] loop5: detected capacity change from 0 to 512 [ 62.438439][ T4877] loop2: detected capacity change from 0 to 512 [ 62.443381][ T4882] loop3: detected capacity change from 0 to 512 [ 62.452802][ T4872] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 17 prio class 2 [ 62.454793][ T4853] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 62.474788][ T4884] loop4: detected capacity change from 0 to 512 [ 62.483177][ T4872] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 62.511719][ T4853] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/242/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 62.545204][ T350] EXT4-fs (loop1): unmounting filesystem. [ 62.562059][ T4903] loop3: detected capacity change from 0 to 512 [ 62.572343][ T4895] loop2: detected capacity change from 0 to 512 [ 62.583384][ T4907] loop0: detected capacity change from 0 to 512 [ 62.590796][ T4906] buffer_io_error: 583 callbacks suppressed [ 62.590813][ T4906] Buffer I/O error on dev loop0, logical block 0, async page read [ 62.606158][ T4899] Buffer I/O error on dev loop3, logical block 0, async page read [ 62.614896][ T4894] Buffer I/O error on dev loop2, logical block 0, async page read [ 62.629801][ T4915] loop5: detected capacity change from 0 to 512 [ 62.641731][ T4913] loop4: detected capacity change from 0 to 512 [ 62.649583][ T4918] loop1: detected capacity change from 0 to 512 [ 62.656593][ T4894] Buffer I/O error on dev loop2, logical block 0, async page read [ 62.663239][ T4917] Buffer I/O error on dev loop1, logical block 0, async page read [ 62.704625][ T4929] loop2: detected capacity change from 0 to 512 [ 62.719780][ T4937] loop1: detected capacity change from 0 to 512 [ 62.730304][ T4940] loop4: detected capacity change from 0 to 512 [ 62.748897][ T4928] Buffer I/O error on dev loop2, logical block 0, async page read [ 62.765096][ T4928] Buffer I/O error on dev loop2, logical block 0, async page read [ 62.774538][ T4940] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.794876][ T4954] loop1: detected capacity change from 0 to 512 [ 62.821417][ T4953] Buffer I/O error on dev loop1, logical block 0, async page read [ 62.829926][ T4953] Buffer I/O error on dev loop1, logical block 0, async page read [ 62.843185][ T4969] loop0: detected capacity change from 0 to 512 [ 62.880913][ T4968] Buffer I/O error on dev loop0, logical block 0, async page read [ 62.928042][ T5002] loop1: detected capacity change from 0 to 512 [ 62.933130][ T5005] loop5: detected capacity change from 0 to 512 [ 62.951659][ T5009] loop2: detected capacity change from 0 to 512 [ 62.964950][ T5015] loop4: detected capacity change from 0 to 512 [ 62.998379][ T5025] loop3: detected capacity change from 0 to 512 [ 63.025178][ T5035] loop1: detected capacity change from 0 to 512 [ 63.056318][ T5032] loop2: detected capacity change from 0 to 512 [ 63.070846][ T5046] loop4: detected capacity change from 0 to 512 [ 63.090120][ T5047] loop3: detected capacity change from 0 to 512 [ 63.119452][ T5065] loop1: detected capacity change from 0 to 512 [ 63.155191][ T5079] loop5: detected capacity change from 0 to 512 [ 63.163225][ T5075] loop2: detected capacity change from 0 to 512 [ 63.199347][ T5087] loop0: detected capacity change from 0 to 512 [ 63.208409][ T5089] loop4: detected capacity change from 0 to 512 [ 63.230085][ T5089] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 63.244529][ T5104] loop5: detected capacity change from 0 to 512 [ 63.257417][ T5087] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.271218][ T5107] loop2: detected capacity change from 0 to 512 [ 63.281200][ T5111] loop1: detected capacity change from 0 to 512 [ 63.295653][ T5104] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.334180][ T5123] loop0: detected capacity change from 0 to 512 [ 63.365319][ T5140] loop4: detected capacity change from 0 to 512 [ 63.410825][ T5153] loop5: detected capacity change from 0 to 512 [ 63.417718][ T5140] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 63.440517][ T5164] EXT4-fs warning (device loop5): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 63.451912][ T5153] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 63.461824][ T5140] EXT4-fs (loop4): group descriptors corrupted! [ 63.470516][ T5168] loop3: detected capacity change from 0 to 512 [ 63.493988][ T5179] loop4: detected capacity change from 0 to 512 [ 63.505067][ T5181] loop1: detected capacity change from 0 to 512 [ 63.512593][ T5153] EXT4-fs (loop5): failed to initialize system zone (-117) [ 63.534480][ T5185] EXT4-fs warning (device loop3): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 63.552384][ T5153] EXT4-fs (loop5): mount failed [ 63.558660][ T5168] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 63.578166][ T5168] EXT4-fs (loop3): failed to initialize system zone (-117) [ 63.585524][ T5168] EXT4-fs (loop3): mount failed [ 63.601215][ T5193] loop1: detected capacity change from 0 to 512 2025/12/20 23:13:27 executed programs: 1564 [ 63.611987][ T5196] loop4: detected capacity change from 0 to 512 [ 63.621264][ T5191] loop0: detected capacity change from 0 to 518 [ 63.643632][ T5208] loop3: detected capacity change from 0 to 512 [ 63.648760][ T5205] loop2: detected capacity change from 0 to 512 [ 63.664177][ T5211] loop1: detected capacity change from 0 to 512 [ 63.686968][ T5214] loop5: detected capacity change from 0 to 512 [ 63.716086][ T5223] loop4: detected capacity change from 0 to 512 [ 63.747856][ T5211] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 63.760638][ T5237] loop5: detected capacity change from 0 to 512 [ 63.778789][ T5211] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/258/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 63.820638][ T350] EXT4-fs (loop1): unmounting filesystem. [ 63.839701][ T5262] loop2: detected capacity change from 0 to 512 [ 63.851063][ T5265] loop1: detected capacity change from 0 to 512 [ 63.878040][ T5279] loop4: detected capacity change from 0 to 512 [ 63.888627][ T5262] EXT4-fs (loop2): failed to initialize system zone (-117) [ 63.897235][ T5265] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.912373][ T5262] EXT4-fs (loop2): mount failed [ 63.919415][ T5268] loop3: detected capacity change from 0 to 512 [ 63.926263][ T5274] loop0: detected capacity change from 0 to 512 [ 63.952823][ T5287] loop4: detected capacity change from 0 to 512 [ 63.966995][ T5285] loop5: detected capacity change from 0 to 512 [ 63.984335][ T5294] loop3: detected capacity change from 0 to 512 [ 63.991791][ T5290] loop1: detected capacity change from 0 to 512 [ 64.002200][ T5297] loop0: detected capacity change from 0 to 512 [ 64.036587][ T5303] loop5: detected capacity change from 0 to 512 [ 64.044658][ T5297] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 64.065443][ T5318] loop4: detected capacity change from 0 to 512 [ 64.112735][ T5335] loop0: detected capacity change from 0 to 512 [ 64.142583][ T5348] loop1: detected capacity change from 0 to 512 [ 64.175395][ T5363] loop0: detected capacity change from 0 to 512 [ 64.193535][ T5348] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 64.216833][ T5374] loop4: detected capacity change from 0 to 512 [ 64.223264][ T5370] loop5: detected capacity change from 0 to 512 [ 64.236850][ T5348] EXT4-fs (loop1): group descriptors corrupted! [ 64.292799][ T5397] loop4: detected capacity change from 0 to 512 [ 64.342108][ T5429] loop4: detected capacity change from 0 to 512 [ 64.342233][ T5430] loop3: detected capacity change from 0 to 512 [ 64.361215][ T5438] loop5: detected capacity change from 0 to 512 [ 64.362029][ T5436] loop2: detected capacity change from 0 to 519 [ 64.403687][ T5444] loop1: detected capacity change from 0 to 512 [ 64.417297][ T5438] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 64.433670][ T5450] loop3: detected capacity change from 0 to 512 [ 64.446605][ T5444] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 64.473947][ T5465] loop0: detected capacity change from 0 to 512 [ 64.484705][ T5468] loop2: detected capacity change from 0 to 512 [ 64.543941][ T5496] loop4: detected capacity change from 0 to 512 [ 64.553963][ T5489] loop1: detected capacity change from 0 to 512 [ 64.577571][ T5496] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 64.595774][ T5511] loop3: detected capacity change from 0 to 512 [ 64.604151][ T5513] loop0: detected capacity change from 0 to 512 [ 64.646939][ T5528] loop5: detected capacity change from 0 to 512 [ 64.665435][ T5531] loop1: detected capacity change from 0 to 512 [ 64.672125][ T5537] loop2: detected capacity change from 0 to 512 [ 64.731206][ T5559] loop1: detected capacity change from 0 to 519 [ 64.738111][ T5560] loop0: detected capacity change from 0 to 512 [ 64.749742][ T5570] loop4: detected capacity change from 0 to 512 [ 64.757401][ T5568] loop3: detected capacity change from 0 to 512 [ 64.786180][ T5581] loop5: detected capacity change from 0 to 512 [ 64.792929][ T5559] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 64.805379][ T5570] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 64.807821][ T5580] loop0: detected capacity change from 0 to 512 [ 64.828342][ T5585] loop2: detected capacity change from 0 to 512 [ 64.842016][ T5585] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 64.859736][ T5588] loop3: detected capacity change from 0 to 512 [ 64.875562][ T5598] loop2: detected capacity change from 0 to 512 [ 64.899924][ T5603] loop4: detected capacity change from 0 to 512 [ 64.909532][ T5588] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 64.938614][ T5618] loop0: detected capacity change from 0 to 512 [ 65.009849][ T5652] loop2: detected capacity change from 0 to 512 [ 65.009930][ T5640] loop3: detected capacity change from 0 to 512 [ 65.065270][ T5675] loop0: detected capacity change from 0 to 512 [ 65.109900][ T5696] loop5: detected capacity change from 0 to 512 [ 65.116574][ T5675] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.135571][ T5702] loop1: detected capacity change from 0 to 512 [ 65.183335][ T5723] loop1: detected capacity change from 0 to 512 [ 65.202362][ T5727] loop5: detected capacity change from 0 to 512 [ 65.215665][ T5733] loop0: detected capacity change from 0 to 512 [ 65.224880][ T5738] loop3: detected capacity change from 0 to 512 [ 65.228063][ T5723] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 65.242315][ T5723] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/283/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.242586][ T5727] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 65.272445][ T5733] EXT4-fs (loop0): Magic mismatch, very weird! [ 65.277539][ T5738] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.297318][ T350] EXT4-fs (loop1): unmounting filesystem. [ 65.354255][ T5769] loop1: detected capacity change from 0 to 512 [ 65.377819][ T5780] loop4: detected capacity change from 0 to 512 [ 65.395961][ T5786] loop3: detected capacity change from 0 to 512 [ 65.449695][ T5806] loop5: detected capacity change from 0 to 512 [ 65.483886][ T5821] loop4: detected capacity change from 0 to 512 [ 65.515751][ T5832] loop1: detected capacity change from 0 to 519 [ 65.538432][ T5829] loop5: detected capacity change from 0 to 512 [ 65.565455][ T5848] loop0: detected capacity change from 0 to 518 [ 65.593238][ T5853] loop2: detected capacity change from 0 to 512 [ 65.601248][ T5863] loop1: detected capacity change from 0 to 512 [ 65.650203][ T5872] loop4: detected capacity change from 0 to 512 [ 65.656683][ T5863] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.686360][ T5887] loop0: detected capacity change from 0 to 512 [ 65.697106][ T5890] loop5: detected capacity change from 0 to 512 [ 65.705052][ T5881] loop2: detected capacity change from 0 to 512 [ 65.731334][ T5897] loop4: detected capacity change from 0 to 512 [ 65.771965][ T5911] loop2: detected capacity change from 0 to 512 [ 65.780107][ T5909] loop0: detected capacity change from 0 to 518 [ 65.810310][ T5929] loop4: detected capacity change from 0 to 512 [ 65.822253][ T5936] loop3: detected capacity change from 0 to 512 [ 65.822371][ T5933] loop1: detected capacity change from 0 to 512 [ 65.847561][ T5941] loop5: detected capacity change from 0 to 512 [ 65.862578][ T5911] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 65.880021][ T5948] loop4: detected capacity change from 0 to 512 [ 65.894920][ T5951] loop0: detected capacity change from 0 to 518 [ 65.900165][ T5911] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/318/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.919605][ T5936] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 65.926279][ T5948] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.943109][ T339] EXT4-fs (loop2): unmounting filesystem. [ 65.952234][ T5951] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.023867][ T5976] loop1: detected capacity change from 0 to 512 [ 66.035471][ T5978] loop4: detected capacity change from 0 to 512 [ 66.053227][ T5987] loop2: detected capacity change from 0 to 512 [ 66.075288][ T5994] loop3: detected capacity change from 0 to 512 [ 66.092298][ T6003] loop1: detected capacity change from 0 to 512 [ 66.103559][ T6000] loop0: detected capacity change from 0 to 512 [ 66.116169][ T5994] EXT4-fs (loop3): Magic mismatch, very weird! [ 66.122591][ T5987] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.134525][ T6008] loop5: detected capacity change from 0 to 512 [ 66.161379][ T6008] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.177796][ T6016] loop1: detected capacity change from 0 to 512 [ 66.229635][ T6039] loop2: detected capacity change from 0 to 512 [ 66.280644][ T6052] loop0: detected capacity change from 0 to 518 [ 66.282506][ T6065] loop2: detected capacity change from 0 to 519 [ 66.291016][ T6056] loop1: detected capacity change from 0 to 512 [ 66.318079][ T6063] loop5: detected capacity change from 0 to 512 [ 66.370211][ T6089] loop1: detected capacity change from 0 to 512 [ 66.380127][ T6087] loop2: detected capacity change from 0 to 512 [ 66.393083][ T6080] loop5: detected capacity change from 0 to 519 [ 66.400216][ T6096] loop0: detected capacity change from 0 to 512 [ 66.429770][ T6093] blk_print_req_error: 518 callbacks suppressed [ 66.429787][ T6093] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 66.455269][ T6089] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 66.471934][ T6115] loop4: detected capacity change from 0 to 512 [ 66.487620][ T6112] loop3: detected capacity change from 0 to 512 [ 66.495002][ T6089] EXT4-fs (loop1): failed to initialize system zone (-117) [ 66.504011][ T6111] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 66.518515][ T6114] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 66.528365][ T6089] EXT4-fs (loop1): mount failed [ 66.559788][ T6124] loop0: detected capacity change from 0 to 518 [ 66.569062][ T6121] loop2: detected capacity change from 0 to 512 [ 66.583697][ T6128] loop1: detected capacity change from 0 to 512 [ 66.584778][ T6130] loop3: detected capacity change from 0 to 512 [ 66.606306][ T6126] I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 66.619890][ T6126] I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 66.635752][ T6127] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 66.647482][ T6140] loop0: detected capacity change from 0 to 512 [ 66.654624][ T6127] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 66.685330][ T6148] loop2: detected capacity change from 0 to 512 [ 66.720689][ T6132] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 66.730702][ T6132] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 66.741408][ T6163] loop1: detected capacity change from 0 to 512 [ 66.765052][ T6172] loop3: detected capacity change from 0 to 512 [ 66.797555][ T6175] loop0: detected capacity change from 0 to 512 [ 66.839659][ T6202] loop3: detected capacity change from 0 to 517 [ 66.846234][ T6199] loop4: detected capacity change from 0 to 512 [ 66.860433][ T6198] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 66.880345][ T6205] loop1: detected capacity change from 0 to 512 [ 66.905856][ T6220] loop2: detected capacity change from 0 to 512 [ 66.941165][ T6225] loop5: detected capacity change from 0 to 512 [ 66.980964][ T6245] loop1: detected capacity change from 0 to 512 [ 67.020886][ T6268] loop0: detected capacity change from 0 to 512 [ 67.043384][ T6271] loop3: detected capacity change from 0 to 512 [ 67.043427][ T6278] loop4: detected capacity change from 0 to 512 [ 67.064905][ T6245] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 67.076090][ T6245] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/306/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 67.136715][ T350] EXT4-fs (loop1): unmounting filesystem. [ 67.144717][ T6294] loop0: detected capacity change from 0 to 512 [ 67.199800][ T6310] loop2: detected capacity change from 0 to 512 [ 67.224718][ T6315] loop1: detected capacity change from 0 to 512 [ 67.262165][ T6323] loop0: detected capacity change from 0 to 512 [ 67.323612][ T6360] loop4: detected capacity change from 0 to 512 [ 67.337454][ T6364] loop1: detected capacity change from 0 to 512 [ 67.387381][ T6382] loop5: detected capacity change from 0 to 512 [ 67.404638][ T6387] loop2: detected capacity change from 0 to 512 [ 67.416148][ T6394] loop4: detected capacity change from 0 to 512 [ 67.422190][ T6396] loop0: detected capacity change from 0 to 512 [ 67.470088][ T6409] loop3: detected capacity change from 0 to 512 [ 67.471553][ T6412] loop0: detected capacity change from 0 to 512 [ 67.485666][ T6394] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 67.491277][ T6415] loop1: detected capacity change from 0 to 512 [ 67.511107][ T6394] EXT4-fs (loop4): group descriptors corrupted! [ 67.518158][ T6409] EXT4-fs (loop3): invalid first ino: 2613274174 [ 67.532104][ T6420] loop5: detected capacity change from 0 to 512 [ 67.570003][ T6433] loop2: detected capacity change from 0 to 512 [ 67.583436][ T6438] loop3: detected capacity change from 0 to 512 [ 67.592141][ T6435] loop4: detected capacity change from 0 to 512 [ 67.610394][ T6438] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 67.611046][ T6444] loop5: detected capacity change from 0 to 512 [ 67.623314][ T6435] EXT4-fs (loop4): Magic mismatch, very weird! [ 67.641277][ T6443] buffer_io_error: 645 callbacks suppressed [ 67.641294][ T6443] Buffer I/O error on dev loop5, logical block 0, async page read [ 67.658143][ T6450] loop0: detected capacity change from 0 to 518 [ 67.688522][ T6456] loop2: detected capacity change from 0 to 512 [ 67.694871][ T6459] loop1: detected capacity change from 0 to 519 [ 67.701658][ T6450] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 67.715535][ T6463] loop5: detected capacity change from 0 to 519 [ 67.746798][ T6472] loop3: detected capacity change from 0 to 512 [ 67.754077][ T6458] Buffer I/O error on dev loop1, logical block 0, async page read [ 67.822213][ T6491] loop1: detected capacity change from 0 to 512 [ 67.826332][ T6485] loop5: detected capacity change from 0 to 519 [ 67.836010][ T6498] loop3: detected capacity change from 0 to 512 [ 67.879665][ T6515] loop2: detected capacity change from 0 to 512 [ 67.902342][ T6526] loop4: detected capacity change from 0 to 512 [ 67.912435][ T6522] EXT4-fs warning (device loop2): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 67.914861][ T6520] loop3: detected capacity change from 0 to 512 [ 67.930417][ T6515] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 67.943278][ T6534] loop1: detected capacity change from 0 to 512 [ 67.948765][ T6523] Buffer I/O error on dev loop4, logical block 0, async page read [ 67.958607][ T6515] EXT4-fs (loop2): failed to initialize system zone (-117) [ 67.967744][ T6523] Buffer I/O error on dev loop4, logical block 0, async page read [ 67.981089][ T6515] EXT4-fs (loop2): mount failed [ 67.999263][ T6520] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 68.025670][ T6554] loop4: detected capacity change from 0 to 512 [ 68.037246][ T6534] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 68.045915][ T6520] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/337/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 68.058856][ T6534] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/320/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 68.079686][ T6560] loop5: detected capacity change from 0 to 512 [ 68.089762][ T350] EXT4-fs (loop1): unmounting filesystem. [ 68.100092][ T6560] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 68.114133][ T6566] loop0: detected capacity change from 0 to 512 [ 68.121599][ T6565] Buffer I/O error on dev loop0, logical block 0, async page read [ 68.137123][ T6560] EXT4-fs (loop5): group descriptors corrupted! [ 68.151314][ T6575] loop4: detected capacity change from 0 to 512 [ 68.159618][ T347] EXT4-fs (loop3): unmounting filesystem. [ 68.186602][ T6575] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 68.199268][ T6587] loop3: detected capacity change from 0 to 512 [ 68.236586][ T6597] loop0: detected capacity change from 0 to 512 [ 68.243576][ T6599] loop2: detected capacity change from 0 to 512 [ 68.258396][ T6597] EXT4-fs (loop0): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 68.261382][ T6587] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 68.291902][ T6604] loop5: detected capacity change from 0 to 512 [ 68.316211][ T6614] loop0: detected capacity change from 0 to 512 [ 68.323815][ T6601] Buffer I/O error on dev loop5, logical block 0, async page read [ 68.331822][ T6608] loop4: detected capacity change from 0 to 512 [ 68.332637][ T6618] loop2: detected capacity change from 0 to 512 [ 68.345430][ T6617] Buffer I/O error on dev loop2, logical block 0, async page read [ 68.351068][ T6620] loop1: detected capacity change from 0 to 512 [ 68.360500][ T6616] Buffer I/O error on dev loop1, logical block 0, async page read [ 68.370081][ T6601] Buffer I/O error on dev loop5, logical block 0, async page read [ 68.370078][ T6613] Buffer I/O error on dev loop0, logical block 0, async page read [ 68.459663][ T6651] loop5: detected capacity change from 0 to 512 [ 68.466929][ T6641] loop4: detected capacity change from 0 to 512 [ 68.509730][ T6669] loop1: detected capacity change from 0 to 512 [ 68.523755][ T6672] loop2: detected capacity change from 0 to 512 [ 68.534225][ T6678] loop5: detected capacity change from 0 to 512 [ 68.548932][ T6675] loop4: detected capacity change from 0 to 512 [ 68.605692][ T6699] loop2: detected capacity change from 0 to 512 2025/12/20 23:13:32 executed programs: 2061 [ 68.646219][ T6710] loop0: detected capacity change from 0 to 512 [ 68.674199][ T6718] loop1: detected capacity change from 0 to 519 [ 68.690008][ T6730] loop5: detected capacity change from 0 to 519 [ 68.703939][ T6723] loop4: detected capacity change from 0 to 512 [ 68.712728][ T6726] loop3: detected capacity change from 0 to 512 [ 68.740699][ T6738] loop0: detected capacity change from 0 to 512 [ 68.773364][ T6753] loop3: detected capacity change from 0 to 512 [ 68.836020][ T6782] loop3: detected capacity change from 0 to 512 [ 68.873527][ T6800] loop5: detected capacity change from 0 to 512 [ 68.904003][ T6809] loop4: detected capacity change from 0 to 512 [ 68.930570][ T6818] loop0: detected capacity change from 0 to 512 [ 68.948275][ T6828] loop1: detected capacity change from 0 to 512 [ 68.974631][ T6833] loop4: detected capacity change from 0 to 512 [ 68.987517][ T6818] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.042458][ T6866] loop2: detected capacity change from 0 to 512 [ 69.043637][ T6864] loop4: detected capacity change from 0 to 519 [ 69.060232][ T6869] loop1: detected capacity change from 0 to 512 [ 69.068553][ T6860] loop5: detected capacity change from 0 to 512 [ 69.076794][ T6859] loop3: detected capacity change from 0 to 517 [ 69.120484][ T6878] loop2: detected capacity change from 0 to 512 [ 69.136933][ T6890] loop3: detected capacity change from 0 to 512 [ 69.147494][ T6893] loop0: detected capacity change from 0 to 512 [ 69.157538][ T6878] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 69.169598][ T6899] loop1: detected capacity change from 0 to 512 [ 69.198810][ T6905] loop0: detected capacity change from 0 to 518 [ 69.285511][ T6946] loop0: detected capacity change from 0 to 518 [ 69.293680][ T6945] loop1: detected capacity change from 0 to 512 [ 69.302389][ T6941] loop5: detected capacity change from 0 to 512 [ 69.338356][ T6960] loop4: detected capacity change from 0 to 512 [ 69.350735][ T6965] loop3: detected capacity change from 0 to 512 [ 69.362272][ T6968] loop0: detected capacity change from 0 to 512 [ 69.380481][ T6971] loop2: detected capacity change from 0 to 512 [ 69.405030][ T6974] loop1: detected capacity change from 0 to 512 [ 69.412270][ T6980] loop5: detected capacity change from 0 to 512 [ 69.418953][ T6968] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.461242][ T6992] loop3: detected capacity change from 0 to 512 [ 69.468544][ T6986] loop4: detected capacity change from 0 to 519 [ 69.478111][ T6995] loop5: detected capacity change from 0 to 512 [ 69.490981][ T6991] loop2: detected capacity change from 0 to 519 [ 69.512386][ T7005] loop3: detected capacity change from 0 to 512 [ 69.536103][ T7013] loop4: detected capacity change from 0 to 512 [ 69.563616][ T7025] loop0: detected capacity change from 0 to 512 [ 69.571198][ T7019] loop2: detected capacity change from 0 to 512 [ 69.611018][ T7034] loop4: detected capacity change from 0 to 512 [ 69.642552][ T7049] loop1: detected capacity change from 0 to 512 [ 69.704685][ T7079] loop2: detected capacity change from 0 to 512 [ 69.715618][ T7076] loop0: detected capacity change from 0 to 518 [ 69.715618][ T7083] loop5: detected capacity change from 0 to 512 [ 69.736938][ T7083] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 69.765485][ T7099] loop4: detected capacity change from 0 to 512 [ 69.768048][ T7079] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.788933][ T7103] loop3: detected capacity change from 0 to 512 [ 69.799052][ T7083] EXT4-fs (loop5): group descriptors corrupted! [ 69.832935][ T7109] loop0: detected capacity change from 0 to 512 [ 69.842029][ T7112] loop3: detected capacity change from 0 to 512 [ 69.870225][ T7109] EXT4-fs (loop0): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 69.902271][ T7128] loop5: detected capacity change from 0 to 512 [ 69.905843][ T7132] loop2: detected capacity change from 0 to 519 [ 69.911544][ T7112] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 69.943500][ T7131] loop4: detected capacity change from 0 to 512 [ 69.958525][ T7139] loop0: detected capacity change from 0 to 512 [ 70.005944][ T7155] loop4: detected capacity change from 0 to 512 [ 70.016711][ T7162] loop1: detected capacity change from 0 to 512 [ 70.035736][ T7169] loop5: detected capacity change from 0 to 512 [ 70.051660][ T7155] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 70.056695][ T7139] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 70.077264][ T7176] loop2: detected capacity change from 0 to 512 [ 70.083877][ T7139] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/363/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 70.085441][ T7155] EXT4-fs (loop4): group descriptors corrupted! [ 70.118185][ T348] EXT4-fs (loop0): unmounting filesystem. [ 70.121740][ T7181] loop3: detected capacity change from 0 to 512 [ 70.135838][ T7184] loop5: detected capacity change from 0 to 512 [ 70.145470][ T7189] loop4: detected capacity change from 0 to 512 [ 70.158506][ T7192] loop1: detected capacity change from 0 to 512 [ 70.212108][ T7213] loop3: detected capacity change from 0 to 512 [ 70.219776][ T7211] loop0: detected capacity change from 0 to 512 [ 70.281006][ T7239] loop1: detected capacity change from 0 to 512 [ 70.294006][ T7247] loop4: detected capacity change from 0 to 512 [ 70.300986][ T7246] loop3: detected capacity change from 0 to 512 [ 70.332248][ T7258] loop0: detected capacity change from 0 to 512 [ 70.378353][ T7275] loop5: detected capacity change from 0 to 512 [ 70.386126][ T7266] loop1: detected capacity change from 0 to 512 [ 70.389571][ T7270] loop4: detected capacity change from 0 to 512 [ 70.393924][ T7273] loop3: detected capacity change from 0 to 512 [ 70.444251][ T7296] loop0: detected capacity change from 0 to 512 [ 70.490007][ T7315] loop5: detected capacity change from 0 to 512 [ 70.502809][ T7320] loop2: detected capacity change from 0 to 512 [ 70.527223][ T7323] loop0: detected capacity change from 0 to 512 [ 70.581027][ T7342] loop1: detected capacity change from 0 to 512 [ 70.591647][ T7350] loop0: detected capacity change from 0 to 512 [ 70.600766][ T7353] loop5: detected capacity change from 0 to 512 [ 70.627536][ T7359] loop2: detected capacity change from 0 to 512 [ 70.655433][ T7372] loop1: detected capacity change from 0 to 519 [ 70.678515][ T7359] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 70.696011][ T7383] loop5: detected capacity change from 0 to 512 [ 70.718027][ T7386] loop3: detected capacity change from 0 to 512 [ 70.728128][ T7390] loop4: detected capacity change from 0 to 512 [ 70.749718][ T7392] loop0: detected capacity change from 0 to 512 [ 70.780398][ T7407] loop5: detected capacity change from 0 to 512 [ 70.809194][ T7419] loop4: detected capacity change from 0 to 512 [ 70.872936][ T7450] loop1: detected capacity change from 0 to 512 [ 70.913132][ T7462] loop3: detected capacity change from 0 to 512 [ 70.921102][ T7465] loop0: detected capacity change from 0 to 512 [ 70.952281][ T7480] loop1: detected capacity change from 0 to 512 [ 70.959816][ T7462] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/392/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 70.980759][ T7488] loop4: detected capacity change from 0 to 512 [ 70.988579][ T7485] loop2: detected capacity change from 0 to 512 [ 71.000891][ T7480] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 71.014151][ T7485] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.056286][ T7508] loop3: detected capacity change from 0 to 512 [ 71.061001][ T7499] loop4: detected capacity change from 0 to 512 [ 71.075858][ T7512] loop1: detected capacity change from 0 to 512 [ 71.082969][ T7514] loop5: detected capacity change from 0 to 512 [ 71.118711][ T7523] loop0: detected capacity change from 0 to 512 [ 71.138026][ T7526] loop1: detected capacity change from 0 to 512 [ 71.164808][ T7536] loop4: detected capacity change from 0 to 512 [ 71.172305][ T7539] loop2: detected capacity change from 0 to 512 [ 71.188738][ T7543] loop5: detected capacity change from 0 to 512 [ 71.226498][ T7561] loop1: detected capacity change from 0 to 512 [ 71.236764][ T7543] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.252339][ T7566] loop3: detected capacity change from 0 to 512 [ 71.265749][ T7570] loop2: detected capacity change from 0 to 512 [ 71.275394][ T7573] loop4: detected capacity change from 0 to 519 [ 71.316049][ T7584] loop5: detected capacity change from 0 to 512 [ 71.357478][ T7593] loop0: detected capacity change from 0 to 512 [ 71.369169][ T7608] loop5: detected capacity change from 0 to 512 [ 71.384401][ T7603] loop2: detected capacity change from 0 to 512 [ 71.397727][ T7616] loop4: detected capacity change from 0 to 512 [ 71.405922][ T7611] loop3: detected capacity change from 0 to 517 [ 71.427049][ T7593] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.443062][ T7624] loop2: detected capacity change from 0 to 512 [ 71.455644][ T7616] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/382/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 71.509369][ T7643] loop3: detected capacity change from 0 to 512 [ 71.524399][ T7635] blk_print_req_error: 1020 callbacks suppressed [ 71.524418][ T7635] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.543354][ T7650] loop5: detected capacity change from 0 to 512 [ 71.557098][ T7655] loop1: detected capacity change from 0 to 512 [ 71.564624][ T7651] I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.600338][ T7670] loop2: detected capacity change from 0 to 512 [ 71.611404][ T7666] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.621952][ T7666] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 71.652976][ T7676] loop0: detected capacity change from 0 to 512 [ 71.659742][ T7675] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.670350][ T7680] loop4: detected capacity change from 0 to 519 [ 71.673433][ T7686] loop3: detected capacity change from 0 to 517 [ 71.682627][ T7688] loop5: detected capacity change from 0 to 512 [ 71.713693][ T7683] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.729044][ T7698] loop4: detected capacity change from 0 to 512 [ 71.750519][ T7695] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.770033][ T7712] loop0: detected capacity change from 0 to 512 [ 71.785918][ T7706] loop3: detected capacity change from 0 to 512 [ 71.801931][ T7711] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.855507][ T7741] loop3: detected capacity change from 0 to 512 [ 71.870574][ T7745] loop2: detected capacity change from 0 to 512 [ 71.886957][ T7749] loop1: detected capacity change from 0 to 512 [ 71.886983][ T7739] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 71.906484][ T7739] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 71.918229][ T7745] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 71.934930][ T7756] loop5: detected capacity change from 0 to 512 [ 71.949184][ T7764] loop0: detected capacity change from 0 to 518 [ 71.998572][ T7775] loop0: detected capacity change from 0 to 518 [ 72.032983][ T7794] loop5: detected capacity change from 0 to 512 [ 72.040643][ T7791] loop3: detected capacity change from 0 to 512 [ 72.086406][ T7817] loop4: detected capacity change from 0 to 512 [ 72.120162][ T7830] loop0: detected capacity change from 0 to 512 [ 72.137946][ T7837] loop2: detected capacity change from 0 to 512 [ 72.181293][ T7848] loop4: detected capacity change from 0 to 512 [ 72.195594][ T7859] loop0: detected capacity change from 0 to 512 [ 72.231484][ T7874] loop5: detected capacity change from 0 to 512 [ 72.255854][ T7877] loop1: detected capacity change from 0 to 519 [ 72.275217][ T7886] loop4: detected capacity change from 0 to 512 [ 72.293025][ T7883] loop2: detected capacity change from 0 to 512 [ 72.317683][ T7892] loop0: detected capacity change from 0 to 518 [ 72.324578][ T7898] loop5: detected capacity change from 0 to 512 [ 72.374441][ T7911] loop0: detected capacity change from 0 to 518 [ 72.384920][ T7913] loop1: detected capacity change from 0 to 519 [ 72.393477][ T7921] loop3: detected capacity change from 0 to 512 [ 72.433532][ T7920] loop5: detected capacity change from 0 to 512 [ 72.463230][ T7946] loop0: detected capacity change from 0 to 512 [ 72.485181][ T7949] loop3: detected capacity change from 0 to 512 [ 72.499001][ T7956] loop2: detected capacity change from 0 to 519 [ 72.538354][ T7970] loop5: detected capacity change from 0 to 512 [ 72.580711][ T7990] loop3: detected capacity change from 0 to 512 [ 72.590656][ T7982] loop1: detected capacity change from 0 to 512 [ 72.603376][ T7994] loop0: detected capacity change from 0 to 512 [ 72.626323][ T7970] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/404/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 72.654928][ T8008] loop4: detected capacity change from 0 to 512 [ 72.664067][ T7994] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 72.667064][ T8007] buffer_io_error: 950 callbacks suppressed [ 72.667120][ T8007] Buffer I/O error on dev loop4, logical block 0, async page read [ 72.688445][ T8006] loop2: detected capacity change from 0 to 512 [ 72.696252][ T7994] EXT4-fs (loop0): group descriptors corrupted! [ 72.707091][ T8015] loop3: detected capacity change from 0 to 512 [ 72.713937][ T8005] Buffer I/O error on dev loop2, logical block 0, async page read [ 72.738976][ T8021] loop5: detected capacity change from 0 to 512 [ 72.748999][ T8014] Buffer I/O error on dev loop3, logical block 0, async page read [ 72.762802][ T8014] Buffer I/O error on dev loop3, logical block 0, async page read [ 72.788202][ T8021] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 72.850910][ T8049] loop3: detected capacity change from 0 to 512 [ 72.863105][ T8058] loop0: detected capacity change from 0 to 512 [ 72.875178][ T8061] loop5: detected capacity change from 0 to 519 [ 72.886683][ T8068] loop1: detected capacity change from 0 to 512 [ 72.901046][ T8074] loop4: detected capacity change from 0 to 512 [ 72.916923][ T8060] Buffer I/O error on dev loop5, logical block 0, async page read [ 72.924677][ T8073] Buffer I/O error on dev loop4, logical block 0, async page read [ 72.924893][ T8073] Buffer I/O error on dev loop4, logical block 0, async page read [ 72.941120][ T8060] Buffer I/O error on dev loop5, logical block 0, async page read [ 72.998966][ T8098] loop5: detected capacity change from 0 to 512 [ 73.011734][ T8101] loop0: detected capacity change from 0 to 512 [ 73.013339][ T8100] Buffer I/O error on dev loop0, logical block 0, async page read [ 73.038978][ T8112] loop4: detected capacity change from 0 to 512 [ 73.044159][ T8115] loop3: detected capacity change from 0 to 517 [ 73.054213][ T8109] Buffer I/O error on dev loop4, logical block 0, async page read [ 73.062336][ T8107] loop2: detected capacity change from 0 to 512 [ 73.071557][ T8098] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 73.110608][ T8125] loop0: detected capacity change from 0 to 512 [ 73.141584][ T8139] loop1: detected capacity change from 0 to 512 [ 73.142131][ T8131] loop4: detected capacity change from 0 to 519 [ 73.166847][ T8143] loop3: detected capacity change from 0 to 512 [ 73.173411][ T8141] EXT4-fs warning (device loop0): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 73.190075][ T8139] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.201139][ T8125] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 73.211534][ T8125] EXT4-fs (loop0): failed to initialize system zone (-117) [ 73.222521][ T8125] EXT4-fs (loop0): mount failed [ 73.243109][ T8156] loop5: detected capacity change from 0 to 512 [ 73.262339][ T8165] loop2: detected capacity change from 0 to 512 [ 73.288818][ T8171] loop4: detected capacity change from 0 to 512 [ 73.378902][ T8218] loop3: detected capacity change from 0 to 512 [ 73.406093][ T8231] loop4: detected capacity change from 0 to 512 [ 73.413633][ T8233] loop2: detected capacity change from 0 to 512 [ 73.450660][ T8249] loop5: detected capacity change from 0 to 512 [ 73.479693][ T8262] loop2: detected capacity change from 0 to 512 [ 73.491217][ T8267] loop0: detected capacity change from 0 to 512 [ 73.505441][ T8249] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 73.527365][ T8249] EXT4-fs (loop5): group descriptors corrupted! [ 73.551663][ T8278] loop4: detected capacity change from 0 to 512 [ 73.588729][ T8291] loop5: detected capacity change from 0 to 512 [ 73.599384][ T8296] loop1: detected capacity change from 0 to 512 [ 73.608875][ T8301] loop0: detected capacity change from 0 to 518 2025/12/20 23:13:37 executed programs: 2589 [ 73.641215][ T8306] loop4: detected capacity change from 0 to 512 [ 73.677338][ T8317] loop0: detected capacity change from 0 to 512 [ 73.684405][ T8312] loop1: detected capacity change from 0 to 512 [ 73.709765][ T8328] loop3: detected capacity change from 0 to 512 [ 73.725582][ T8334] loop2: detected capacity change from 0 to 512 [ 73.737979][ T8337] loop0: detected capacity change from 0 to 512 [ 73.761870][ T8344] loop1: detected capacity change from 0 to 512 [ 73.836724][ T8365] loop0: detected capacity change from 0 to 512 [ 73.844247][ T8372] loop3: detected capacity change from 0 to 512 [ 73.894360][ T8398] loop3: detected capacity change from 0 to 512 [ 73.901579][ T8391] loop1: detected capacity change from 0 to 519 [ 73.910515][ T8403] loop4: detected capacity change from 0 to 512 [ 73.946404][ T8412] loop2: detected capacity change from 0 to 512 [ 73.963568][ T8420] loop1: detected capacity change from 0 to 512 [ 73.971202][ T8417] loop5: detected capacity change from 0 to 512 [ 74.006242][ T8432] loop2: detected capacity change from 0 to 512 [ 74.082785][ T8468] loop0: detected capacity change from 0 to 512 [ 74.095024][ T8463] loop5: detected capacity change from 0 to 512 [ 74.101463][ T8465] loop2: detected capacity change from 0 to 512 [ 74.134625][ T8484] loop1: detected capacity change from 0 to 512 [ 74.160715][ T8491] loop0: detected capacity change from 0 to 512 [ 74.165673][ T8463] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/428/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 74.192209][ T8498] loop3: detected capacity change from 0 to 512 [ 74.196368][ T8502] loop2: detected capacity change from 0 to 512 [ 74.211731][ T8504] loop1: detected capacity change from 0 to 519 [ 74.222758][ T8495] loop4: detected capacity change from 0 to 512 [ 74.275500][ T8524] loop4: detected capacity change from 0 to 512 [ 74.288183][ T8502] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/467/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 74.306848][ T8498] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/444/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 74.328967][ T8526] loop1: detected capacity change from 0 to 512 [ 74.358814][ T8526] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 74.370669][ T8535] loop4: detected capacity change from 0 to 512 [ 74.401835][ T8544] loop1: detected capacity change from 0 to 512 [ 74.424462][ T8548] loop0: detected capacity change from 0 to 512 [ 74.441091][ T8559] loop3: detected capacity change from 0 to 512 [ 74.442060][ T8557] loop2: detected capacity change from 0 to 512 [ 74.455856][ T8544] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 74.463960][ T8553] loop4: detected capacity change from 0 to 519 [ 74.471266][ T8559] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 74.497405][ T8544] EXT4-fs (loop1): failed to initialize system zone (-117) [ 74.507165][ T8544] EXT4-fs (loop1): mount failed [ 74.507187][ T8567] loop4: detected capacity change from 0 to 512 [ 74.526690][ T8565] loop5: detected capacity change from 0 to 512 [ 74.527516][ T8548] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 74.543525][ T8557] EXT4-fs (loop2): Magic mismatch, very weird! [ 74.577974][ T8578] loop4: detected capacity change from 0 to 512 [ 74.578113][ T8573] loop2: detected capacity change from 0 to 512 [ 74.610819][ T8588] loop0: detected capacity change from 0 to 512 [ 74.642704][ T8603] loop4: detected capacity change from 0 to 512 [ 74.678514][ T8619] loop2: detected capacity change from 0 to 512 [ 74.698409][ T8621] loop0: detected capacity change from 0 to 512 [ 74.724864][ T8639] loop4: detected capacity change from 0 to 512 [ 74.774612][ T8646] loop3: detected capacity change from 0 to 512 [ 74.807757][ T8668] loop4: detected capacity change from 0 to 512 [ 74.818704][ T8671] loop3: detected capacity change from 0 to 512 [ 74.870269][ T8668] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 74.881681][ T8690] loop5: detected capacity change from 0 to 512 [ 74.921016][ T8708] loop4: detected capacity change from 0 to 519 [ 74.943065][ T8717] loop2: detected capacity change from 0 to 512 [ 74.965748][ T8728] loop0: detected capacity change from 0 to 512 [ 75.025566][ T8743] loop4: detected capacity change from 0 to 512 [ 75.037697][ T8749] loop2: detected capacity change from 0 to 512 [ 75.044348][ T8741] loop5: detected capacity change from 0 to 512 [ 75.107431][ T8768] loop2: detected capacity change from 0 to 512 [ 75.127984][ T8786] loop1: detected capacity change from 0 to 512 [ 75.147650][ T8792] loop0: detected capacity change from 0 to 512 [ 75.147702][ T8788] loop5: detected capacity change from 0 to 512 [ 75.174177][ T8786] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.188716][ T8804] loop0: detected capacity change from 0 to 512 [ 75.189183][ T8798] loop4: detected capacity change from 0 to 512 [ 75.210676][ T8810] loop2: detected capacity change from 0 to 512 [ 75.219729][ T8804] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 75.241516][ T8818] loop1: detected capacity change from 0 to 512 [ 75.248243][ T8814] loop3: detected capacity change from 0 to 512 [ 75.283939][ T8823] loop2: detected capacity change from 0 to 512 [ 75.303752][ T8825] loop5: detected capacity change from 0 to 512 [ 75.310504][ T8829] loop0: detected capacity change from 0 to 512 [ 75.323852][ T8834] loop3: detected capacity change from 0 to 512 [ 75.340550][ T8837] loop1: detected capacity change from 0 to 519 [ 75.365265][ T8844] loop2: detected capacity change from 0 to 512 [ 75.382096][ T8846] loop5: detected capacity change from 0 to 519 [ 75.392406][ T8849] loop0: detected capacity change from 0 to 512 [ 75.405944][ T8852] loop4: detected capacity change from 0 to 512 [ 75.435905][ T8858] loop3: detected capacity change from 0 to 512 [ 75.462734][ T8870] loop4: detected capacity change from 0 to 512 [ 75.479067][ T8873] loop5: detected capacity change from 0 to 512 [ 75.494956][ T8883] loop2: detected capacity change from 0 to 512 [ 75.518275][ T8888] loop0: detected capacity change from 0 to 512 [ 75.530311][ T8883] EXT4-fs (loop2): Magic mismatch, very weird! [ 75.552014][ T8895] loop4: detected capacity change from 0 to 512 [ 75.568900][ T8888] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 75.591373][ T8912] loop2: detected capacity change from 0 to 512 [ 75.595003][ T8906] loop3: detected capacity change from 0 to 512 [ 75.606286][ T8915] loop5: detected capacity change from 0 to 512 [ 75.640412][ T8924] loop3: detected capacity change from 0 to 512 [ 75.646958][ T8915] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.666262][ T8928] loop2: detected capacity change from 0 to 512 [ 75.699149][ T8939] loop4: detected capacity change from 0 to 512 [ 75.711497][ T8942] loop3: detected capacity change from 0 to 512 [ 75.728978][ T8952] loop2: detected capacity change from 0 to 512 [ 75.732793][ T8954] loop0: detected capacity change from 0 to 512 [ 75.738577][ T8946] loop5: detected capacity change from 0 to 512 [ 75.778827][ T8952] EXT4-fs (loop2): Magic mismatch, very weird! [ 75.825940][ T8979] loop2: detected capacity change from 0 to 512 [ 75.834112][ T8974] loop3: detected capacity change from 0 to 512 [ 75.848865][ T8985] loop5: detected capacity change from 0 to 512 [ 75.865973][ T8988] loop0: detected capacity change from 0 to 512 [ 75.875374][ T8992] loop1: detected capacity change from 0 to 512 [ 75.882469][ T8985] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 75.905009][ T8979] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/488/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.925250][ T8988] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/458/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.966136][ T9005] loop4: detected capacity change from 0 to 512 [ 75.989142][ T9015] loop0: detected capacity change from 0 to 512 [ 75.998949][ T9019] loop1: detected capacity change from 0 to 512 [ 76.025954][ T9025] loop5: detected capacity change from 0 to 512 [ 76.068051][ T9037] loop3: detected capacity change from 0 to 512 [ 76.076213][ T9031] loop1: detected capacity change from 0 to 512 [ 76.090764][ T9034] loop5: detected capacity change from 0 to 512 [ 76.124243][ T9046] loop4: detected capacity change from 0 to 512 [ 76.149777][ T9037] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/476/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.164965][ T9065] loop2: detected capacity change from 0 to 512 [ 76.183276][ T9065] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.199252][ T9070] loop5: detected capacity change from 0 to 512 [ 76.244895][ T9079] loop4: detected capacity change from 0 to 512 [ 76.263595][ T9085] loop2: detected capacity change from 0 to 512 [ 76.277929][ T9070] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/459/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.291170][ T9091] loop3: detected capacity change from 0 to 512 [ 76.311113][ T9091] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 76.318355][ T9102] loop4: detected capacity change from 0 to 512 [ 76.397256][ T9111] loop1: detected capacity change from 0 to 512 [ 76.418943][ T9124] loop2: detected capacity change from 0 to 512 [ 76.442090][ T9130] loop0: detected capacity change from 0 to 512 [ 76.462417][ T9138] loop1: detected capacity change from 0 to 512 [ 76.485675][ T9150] loop4: detected capacity change from 0 to 512 [ 76.530458][ T9160] loop3: detected capacity change from 0 to 512 [ 76.546993][ T9171] loop1: detected capacity change from 0 to 512 [ 76.557170][ T9170] blk_print_req_error: 842 callbacks suppressed [ 76.557188][ T9170] I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 13 prio class 2 [ 76.574946][ T9150] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/470/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.598647][ T9185] loop0: detected capacity change from 0 to 512 [ 76.637506][ T9185] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/470/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.647480][ T9190] loop2: detected capacity change from 0 to 512 [ 76.662185][ T9193] loop1: detected capacity change from 0 to 512 [ 76.676207][ T9199] loop3: detected capacity change from 0 to 512 [ 76.693549][ T9193] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 76.705218][ T9206] loop5: detected capacity change from 0 to 512 [ 76.713869][ T9199] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.729101][ T9193] EXT4-fs (loop1): failed to initialize system zone (-117) [ 76.747395][ T9208] loop4: detected capacity change from 0 to 512 [ 76.764801][ T9193] EXT4-fs (loop1): mount failed [ 76.769920][ T9216] loop5: detected capacity change from 0 to 512 [ 76.799292][ T9225] loop0: detected capacity change from 0 to 518 [ 76.817020][ T9234] loop5: detected capacity change from 0 to 519 [ 76.832323][ T9237] loop3: detected capacity change from 0 to 512 [ 76.840994][ T9230] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 30 prio class 2 [ 76.859511][ T9236] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 2 [ 76.869226][ T9243] loop1: detected capacity change from 0 to 512 [ 76.875276][ T9246] loop2: detected capacity change from 0 to 512 [ 76.885862][ T9236] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 76.895408][ T9245] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 76.895476][ T9245] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 76.895529][ T9245] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 76.895600][ T9245] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 76.895649][ T9245] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 76.895695][ T9245] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 76.902695][ T9249] loop0: detected capacity change from 0 to 512 [ 76.959023][ T9243] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 76.983630][ T9258] loop4: detected capacity change from 0 to 512 [ 77.001786][ T9264] loop1: detected capacity change from 0 to 512 [ 77.027795][ T9261] loop5: detected capacity change from 0 to 512 [ 77.036829][ T9268] loop2: detected capacity change from 0 to 512 [ 77.085446][ T9289] loop1: detected capacity change from 0 to 512 [ 77.103572][ T9293] loop0: detected capacity change from 0 to 512 [ 77.115801][ T9301] loop2: detected capacity change from 0 to 512 [ 77.159267][ T9319] loop4: detected capacity change from 0 to 512 [ 77.173448][ T9326] loop0: detected capacity change from 0 to 512 [ 77.175311][ T9323] EXT4-fs warning (device loop2): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 77.194845][ T9301] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 77.204323][ T9324] loop5: detected capacity change from 0 to 512 [ 77.216861][ T9301] EXT4-fs (loop2): failed to initialize system zone (-117) [ 77.224535][ T9301] EXT4-fs (loop2): mount failed [ 77.239059][ T9332] loop3: detected capacity change from 0 to 512 [ 77.268148][ T9340] loop4: detected capacity change from 0 to 512 [ 77.276112][ T9339] loop1: detected capacity change from 0 to 512 [ 77.335139][ T9372] loop0: detected capacity change from 0 to 512 [ 77.353645][ T9381] loop2: detected capacity change from 0 to 512 [ 77.364625][ T9383] loop5: detected capacity change from 0 to 512 [ 77.382133][ T9389] loop3: detected capacity change from 0 to 512 [ 77.390078][ T9386] loop4: detected capacity change from 0 to 519 [ 77.432820][ T9389] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.470519][ T9416] loop0: detected capacity change from 0 to 512 [ 77.484347][ T9420] loop4: detected capacity change from 0 to 512 [ 77.492834][ T9422] loop5: detected capacity change from 0 to 512 [ 77.564290][ T9454] loop1: detected capacity change from 0 to 512 [ 77.591043][ T9466] loop5: detected capacity change from 0 to 512 [ 77.623900][ T9454] EXT4-fs mount: 24 callbacks suppressed [ 77.623918][ T9454] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 77.646135][ T9486] loop2: detected capacity change from 0 to 512 [ 77.664542][ T9493] loop3: detected capacity change from 0 to 512 [ 77.672761][ T9454] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/493/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 77.691524][ T9484] buffer_io_error: 712 callbacks suppressed [ 77.691539][ T9484] Buffer I/O error on dev loop2, logical block 0, async page read [ 77.694804][ T9490] loop4: detected capacity change from 0 to 512 [ 77.697691][ T9484] Buffer I/O error on dev loop2, logical block 0, async page read [ 77.720763][ T9484] Buffer I/O error on dev loop2, logical block 0, async page read [ 77.728944][ T9484] Buffer I/O error on dev loop2, logical block 0, async page read [ 77.736960][ T9484] Buffer I/O error on dev loop2, logical block 0, async page read [ 77.738324][ T350] EXT4-fs (loop1): unmounting filesystem. [ 77.745168][ T9484] Buffer I/O error on dev loop2, logical block 0, async page read [ 77.782900][ T9507] loop0: detected capacity change from 0 to 512 [ 77.786408][ T9505] loop5: detected capacity change from 0 to 512 [ 77.807396][ T9509] loop4: detected capacity change from 0 to 512 [ 77.830144][ T9520] loop3: detected capacity change from 0 to 512 [ 77.843992][ T9519] Buffer I/O error on dev loop3, logical block 0, async page read [ 77.864257][ T9519] Buffer I/O error on dev loop3, logical block 0, async page read [ 77.872901][ T9533] loop0: detected capacity change from 0 to 512 [ 77.891610][ T9539] loop2: detected capacity change from 0 to 512 [ 77.907949][ T9538] Buffer I/O error on dev loop2, logical block 0, async page read [ 77.916559][ T9545] loop1: detected capacity change from 0 to 512 [ 77.924607][ T9526] Buffer I/O error on dev loop0, logical block 0, async page read [ 77.955933][ T9550] loop4: detected capacity change from 0 to 512 [ 77.970786][ T9561] loop1: detected capacity change from 0 to 512 [ 78.016581][ T9586] loop0: detected capacity change from 0 to 512 [ 78.048995][ T9596] loop4: detected capacity change from 0 to 512 [ 78.058657][ T9586] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 78.075361][ T9599] loop3: detected capacity change from 0 to 512 [ 78.135599][ T9624] loop5: detected capacity change from 0 to 512 [ 78.154835][ T9620] loop3: detected capacity change from 0 to 512 [ 78.171002][ T9626] loop4: detected capacity change from 0 to 512 [ 78.179833][ T9638] loop1: detected capacity change from 0 to 512 [ 78.187996][ T9624] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 78.205277][ T9644] loop0: detected capacity change from 0 to 512 [ 78.229869][ T9624] EXT4-fs (loop5): group descriptors corrupted! [ 78.249581][ T9658] loop3: detected capacity change from 0 to 512 [ 78.264094][ T9654] loop1: detected capacity change from 0 to 512 [ 78.274790][ T9663] loop2: detected capacity change from 0 to 512 [ 78.317397][ T9677] loop0: detected capacity change from 0 to 512 [ 78.330198][ T9680] loop2: detected capacity change from 0 to 512 [ 78.330482][ T9681] loop5: detected capacity change from 0 to 512 [ 78.343195][ T9654] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 78.395213][ T9695] loop3: detected capacity change from 0 to 512 [ 78.407770][ T9681] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 78.428174][ T9681] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/490/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 78.461924][ T9721] loop1: detected capacity change from 0 to 512 [ 78.493952][ T9721] EXT4-fs (loop1): Magic mismatch, very weird! [ 78.500514][ T9727] loop2: detected capacity change from 0 to 512 [ 78.507591][ T9712] loop3: detected capacity change from 0 to 512 [ 78.522714][ T349] EXT4-fs (loop5): unmounting filesystem. [ 78.531104][ T9730] loop4: detected capacity change from 0 to 512 [ 78.592153][ T9752] loop0: detected capacity change from 0 to 512 [ 78.605767][ T9760] loop2: detected capacity change from 0 to 512 [ 78.618404][ T9758] loop5: detected capacity change from 0 to 519 [ 78.631794][ T9764] loop1: detected capacity change from 0 to 512 2025/12/20 23:13:42 executed programs: 3066 [ 78.651986][ T9769] EXT4-fs warning (device loop0): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 78.676174][ T9752] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 78.731854][ T9789] loop4: detected capacity change from 0 to 512 [ 78.745013][ T9752] EXT4-fs (loop0): failed to initialize system zone (-117) [ 78.763029][ T9752] EXT4-fs (loop0): mount failed [ 78.790372][ T9796] loop5: detected capacity change from 0 to 512 [ 78.797642][ T9799] loop1: detected capacity change from 0 to 512 [ 78.814742][ T9794] loop2: detected capacity change from 0 to 519 [ 78.855981][ T9816] loop3: detected capacity change from 0 to 512 [ 78.862558][ T9799] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 78.899675][ T9831] loop2: detected capacity change from 0 to 512 [ 78.918312][ T9837] loop0: detected capacity change from 0 to 512 [ 78.931323][ T9834] loop3: detected capacity change from 0 to 512 [ 78.959509][ T9853] loop5: detected capacity change from 0 to 512 [ 78.975028][ T9837] EXT4-fs (loop0): Magic mismatch, very weird! [ 78.989839][ T9859] loop3: detected capacity change from 0 to 512 [ 78.997197][ T9861] loop1: detected capacity change from 0 to 519 [ 79.020216][ T9864] loop2: detected capacity change from 0 to 512 [ 79.039387][ T9873] loop0: detected capacity change from 0 to 518 [ 79.064797][ T9880] loop4: detected capacity change from 0 to 512 [ 79.082168][ T9888] loop3: detected capacity change from 0 to 512 [ 79.102063][ T9891] loop5: detected capacity change from 0 to 512 [ 79.135896][ T9909] loop0: detected capacity change from 0 to 512 [ 79.144150][ T9903] loop1: detected capacity change from 0 to 512 [ 79.159103][ T9900] loop2: detected capacity change from 0 to 512 [ 79.189915][ T9916] loop3: detected capacity change from 0 to 512 [ 79.200069][ T9924] loop1: detected capacity change from 0 to 512 [ 79.216153][ T9932] loop2: detected capacity change from 0 to 512 [ 79.230389][ T9936] loop0: detected capacity change from 0 to 512 [ 79.283237][ T9958] loop1: detected capacity change from 0 to 512 [ 79.298265][ T9962] loop0: detected capacity change from 0 to 512 [ 79.308775][ T9961] loop4: detected capacity change from 0 to 512 [ 79.340901][ T9972] loop2: detected capacity change from 0 to 519 [ 79.368508][ T9985] loop3: detected capacity change from 0 to 512 [ 79.384425][ T9990] loop0: detected capacity change from 0 to 512 [ 79.410427][ T9998] loop5: detected capacity change from 0 to 512 [ 79.418478][ T9985] EXT4-fs (loop3): Couldn't mount because of unsupported optional features (b85c1009) [ 79.441452][ T9998] EXT4-fs (loop5): Magic mismatch, very weird! [ 79.475620][T10011] loop4: detected capacity change from 0 to 512 [ 79.499438][T10023] loop3: detected capacity change from 0 to 512 [ 79.511036][T10035] loop5: detected capacity change from 0 to 512 [ 79.532074][T10038] loop0: detected capacity change from 0 to 512 [ 79.544243][T10042] loop2: detected capacity change from 0 to 512 [ 79.556847][T10045] loop4: detected capacity change from 0 to 512 [ 79.576826][T10038] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 79.617597][T10062] loop3: detected capacity change from 0 to 512 [ 79.666970][T10083] loop4: detected capacity change from 0 to 512 [ 79.675338][T10087] loop1: detected capacity change from 0 to 512 [ 79.722517][T10102] loop2: detected capacity change from 0 to 512 [ 79.754370][T10116] loop5: detected capacity change from 0 to 512 [ 79.783768][T10131] loop3: detected capacity change from 0 to 512 [ 79.824568][T10146] loop1: detected capacity change from 0 to 512 [ 79.865670][T10168] loop4: detected capacity change from 0 to 512 [ 79.866237][T10161] loop0: detected capacity change from 0 to 518 [ 79.890362][T10164] loop2: detected capacity change from 0 to 512 [ 79.901381][T10176] loop1: detected capacity change from 0 to 512 [ 79.935337][T10182] loop4: detected capacity change from 0 to 519 [ 79.942645][T10185] loop5: detected capacity change from 0 to 512 [ 79.968600][T10197] loop1: detected capacity change from 0 to 512 [ 79.978926][T10200] loop3: detected capacity change from 0 to 512 [ 79.985568][T10161] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 79.997864][T10161] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/519/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.038618][ T348] EXT4-fs (loop0): unmounting filesystem. [ 80.063416][T10226] loop5: detected capacity change from 0 to 512 [ 80.063420][T10227] loop3: detected capacity change from 0 to 512 [ 80.094654][T10237] loop4: detected capacity change from 0 to 512 [ 80.096982][T10235] loop0: detected capacity change from 0 to 512 [ 80.108457][T10232] loop2: detected capacity change from 0 to 512 [ 80.116529][T10237] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.131302][T10227] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 80.144846][T10227] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/541/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.164405][T10245] loop1: detected capacity change from 0 to 512 [ 80.171726][ T347] EXT4-fs (loop3): unmounting filesystem. [ 80.183678][T10244] loop5: detected capacity change from 0 to 512 [ 80.184645][T10248] loop2: detected capacity change from 0 to 512 [ 80.205127][T10254] loop4: detected capacity change from 0 to 512 [ 80.213984][T10252] loop0: detected capacity change from 0 to 512 [ 80.235528][T10252] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.264273][T10264] loop5: detected capacity change from 0 to 512 [ 80.269199][T10261] loop4: detected capacity change from 0 to 512 [ 80.281770][T10270] loop2: detected capacity change from 0 to 512 [ 80.300605][T10264] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 80.333676][T10281] loop2: detected capacity change from 0 to 512 [ 80.381099][T10305] loop0: detected capacity change from 0 to 512 [ 80.405697][T10320] loop1: detected capacity change from 0 to 512 [ 80.424537][T10325] loop5: detected capacity change from 0 to 512 [ 80.433271][T10328] loop3: detected capacity change from 0 to 512 [ 80.439892][T10322] EXT4-fs warning (device loop0): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 80.455514][T10305] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 80.467073][T10320] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.481383][T10325] EXT4-fs (loop5): Magic mismatch, very weird! [ 80.489269][T10336] loop4: detected capacity change from 0 to 512 [ 80.498414][T10305] EXT4-fs (loop0): failed to initialize system zone (-117) [ 80.518271][T10305] EXT4-fs (loop0): mount failed [ 80.542579][T10349] loop2: detected capacity change from 0 to 512 [ 80.551070][T10348] loop1: detected capacity change from 0 to 512 [ 80.562628][T10345] loop4: detected capacity change from 0 to 512 [ 80.582285][T10359] loop3: detected capacity change from 0 to 512 [ 80.602767][T10365] loop0: detected capacity change from 0 to 512 [ 80.615883][T10369] loop5: detected capacity change from 0 to 512 [ 80.650673][T10375] loop1: detected capacity change from 0 to 512 [ 80.676796][T10378] loop4: detected capacity change from 0 to 512 [ 80.685557][T10380] loop3: detected capacity change from 0 to 517 [ 80.692543][T10387] loop0: detected capacity change from 0 to 512 [ 80.746013][T10403] loop1: detected capacity change from 0 to 512 [ 80.751745][T10413] loop0: detected capacity change from 0 to 512 [ 80.777185][T10417] loop3: detected capacity change from 0 to 512 [ 80.815804][T10438] loop2: detected capacity change from 0 to 512 [ 80.845551][T10413] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 80.869538][T10413] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/528/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.906205][T10454] loop4: detected capacity change from 0 to 512 [ 80.916881][T10465] loop3: detected capacity change from 0 to 512 [ 80.923885][T10463] loop1: detected capacity change from 0 to 512 [ 80.927540][ T348] EXT4-fs (loop0): unmounting filesystem. [ 80.941126][T10468] loop5: detected capacity change from 0 to 512 [ 80.965448][T10471] loop0: detected capacity change from 0 to 512 [ 80.973351][T10454] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.983564][T10465] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.996672][T10468] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.011677][T10477] loop2: detected capacity change from 0 to 512 [ 81.018091][T10471] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.092161][T10498] loop0: detected capacity change from 0 to 512 [ 81.103270][T10504] loop2: detected capacity change from 0 to 512 [ 81.134260][T10508] loop4: detected capacity change from 0 to 512 [ 81.148052][T10504] EXT4-fs (loop2): Magic mismatch, very weird! [ 81.161054][T10498] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 81.176716][T10498] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/530/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 81.223172][T10536] loop5: detected capacity change from 0 to 512 [ 81.242322][ T348] EXT4-fs (loop0): unmounting filesystem. [ 81.285401][T10554] loop4: detected capacity change from 0 to 512 [ 81.299027][T10557] loop0: detected capacity change from 0 to 512 [ 81.315031][T10560] loop1: detected capacity change from 0 to 519 [ 81.329302][T10562] EXT4-fs warning (device loop0): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 81.332503][T10557] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 81.352030][T10557] EXT4-fs (loop0): failed to initialize system zone (-117) [ 81.359673][T10557] EXT4-fs (loop0): mount failed [ 81.382195][T10577] loop3: detected capacity change from 0 to 512 [ 81.384389][T10567] loop2: detected capacity change from 0 to 512 [ 81.449912][T10598] loop4: detected capacity change from 0 to 512 [ 81.464282][T10601] loop3: detected capacity change from 0 to 512 [ 81.496301][T10598] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.529534][T10629] loop5: detected capacity change from 0 to 512 [ 81.544494][T10627] loop3: detected capacity change from 0 to 512 [ 81.553311][T10634] loop0: detected capacity change from 0 to 512 [ 81.562158][T10629] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 81.583525][T10627] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 81.596185][T10633] blk_print_req_error: 888 callbacks suppressed [ 81.596203][T10633] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 81.635140][T10656] loop3: detected capacity change from 0 to 512 [ 81.682648][T10678] loop5: detected capacity change from 0 to 512 [ 81.695556][T10684] loop2: detected capacity change from 0 to 512 [ 81.703233][T10677] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 81.739476][T10701] loop0: detected capacity change from 0 to 512 [ 81.752824][T10684] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.777845][T10701] EXT4-fs (loop0): Magic mismatch, very weird! [ 81.784162][T10712] loop3: detected capacity change from 0 to 512 [ 81.814110][T10712] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.826047][T10724] loop2: detected capacity change from 0 to 512 [ 81.844367][T10729] loop5: detected capacity change from 0 to 512 [ 81.858864][T10728] loop1: detected capacity change from 0 to 512 [ 81.871347][T10729] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 81.881047][T10729] EXT4-fs (loop5): group descriptors corrupted! [ 81.903424][T10743] loop4: detected capacity change from 0 to 512 [ 81.922759][T10741] loop0: detected capacity change from 0 to 518 [ 81.925193][T10746] loop3: detected capacity change from 0 to 517 [ 81.935277][T10740] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 81.957272][T10752] loop2: detected capacity change from 0 to 512 [ 82.015396][T10774] loop4: detected capacity change from 0 to 519 [ 82.025867][T10778] loop5: detected capacity change from 0 to 512 [ 82.028942][T10771] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 82.083532][T10794] loop0: detected capacity change from 0 to 512 [ 82.092235][T10771] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 82.102685][T10778] EXT4-fs (loop5): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 82.120010][T10792] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 82.140243][T10806] loop1: detected capacity change from 0 to 512 [ 82.144525][T10808] loop2: detected capacity change from 0 to 512 [ 82.154671][T10804] I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 82.170637][T10812] loop3: detected capacity change from 0 to 512 [ 82.172466][T10805] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 82.209823][T10820] loop4: detected capacity change from 0 to 512 [ 82.235531][T10814] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 82.263471][T10832] loop1: detected capacity change from 0 to 512 [ 82.270503][T10838] loop0: detected capacity change from 0 to 512 [ 82.290627][T10842] loop3: detected capacity change from 0 to 512 [ 82.303916][T10847] loop4: detected capacity change from 0 to 512 [ 82.316660][T10841] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 82.367279][T10869] loop1: detected capacity change from 0 to 512 [ 82.386050][T10870] loop4: detected capacity change from 0 to 512 [ 82.403122][T10881] loop5: detected capacity change from 0 to 512 [ 82.416155][T10889] loop2: detected capacity change from 0 to 512 [ 82.434520][T10892] loop1: detected capacity change from 0 to 512 [ 82.454477][T10896] loop5: detected capacity change from 0 to 512 [ 82.471762][T10904] loop4: detected capacity change from 0 to 512 [ 82.506075][T10916] loop0: detected capacity change from 0 to 512 [ 82.528819][T10927] loop5: detected capacity change from 0 to 512 [ 82.554435][T10927] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 82.578718][T10943] loop0: detected capacity change from 0 to 512 [ 82.602518][T10943] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 82.607074][T10950] loop3: detected capacity change from 0 to 512 [ 82.612723][T10943] EXT4-fs (loop0): group descriptors corrupted! [ 82.618275][T10927] EXT4-fs (loop5): group descriptors corrupted! [ 82.669866][T10960] loop0: detected capacity change from 0 to 512 [ 82.669870][T10962] loop4: detected capacity change from 0 to 512 [ 82.716019][T10979] loop3: detected capacity change from 0 to 512 [ 82.727603][T10985] loop2: detected capacity change from 0 to 512 [ 82.733935][T10983] loop4: detected capacity change from 0 to 512 [ 82.771905][T10983] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 82.800805][T11009] loop1: detected capacity change from 0 to 512 [ 82.821734][T11015] loop3: detected capacity change from 0 to 512 [ 82.828276][T11008] loop2: detected capacity change from 0 to 512 [ 82.837732][T11009] EXT4-fs (loop1): Magic mismatch, very weird! [ 82.844108][T11018] loop5: detected capacity change from 0 to 512 [ 82.864437][T11021] loop0: detected capacity change from 0 to 512 [ 82.895980][T11036] loop5: detected capacity change from 0 to 512 [ 82.903214][T11028] buffer_io_error: 833 callbacks suppressed [ 82.903229][T11028] Buffer I/O error on dev loop5, logical block 0, async page read [ 82.940259][T11047] loop3: detected capacity change from 0 to 512 [ 82.949278][T11043] Buffer I/O error on dev loop3, logical block 0, async page read [ 82.960559][T11049] loop2: detected capacity change from 0 to 512 [ 82.977235][T11056] loop1: detected capacity change from 0 to 512 [ 82.989084][T11060] loop4: detected capacity change from 0 to 512 [ 83.000455][T11057] loop0: detected capacity change from 0 to 512 [ 83.011906][T11055] Buffer I/O error on dev loop1, logical block 0, async page read [ 83.020967][T11055] Buffer I/O error on dev loop1, logical block 0, async page read [ 83.043245][T11068] loop2: detected capacity change from 0 to 512 [ 83.077774][T11076] loop5: detected capacity change from 0 to 512 [ 83.097740][T11091] loop2: detected capacity change from 0 to 512 [ 83.118679][T11093] loop0: detected capacity change from 0 to 512 [ 83.161014][T11113] loop4: detected capacity change from 0 to 512 [ 83.173699][T11115] loop0: detected capacity change from 0 to 512 [ 83.183233][T11117] loop3: detected capacity change from 0 to 512 [ 83.198505][T11106] Buffer I/O error on dev loop3, logical block 0, async page read [ 83.223190][T11130] loop4: detected capacity change from 0 to 512 [ 83.230607][T11106] Buffer I/O error on dev loop3, logical block 0, async page read [ 83.239588][T11106] Buffer I/O error on dev loop3, logical block 0, async page read [ 83.262599][T11128] Buffer I/O error on dev loop4, logical block 0, async page read [ 83.266163][T11142] loop2: detected capacity change from 0 to 512 [ 83.277610][T11128] Buffer I/O error on dev loop4, logical block 0, async page read [ 83.302878][T11137] Buffer I/O error on dev loop2, logical block 0, async page read [ 83.316262][T11154] loop0: detected capacity change from 0 to 518 [ 83.344249][T11156] loop1: detected capacity change from 0 to 512 [ 83.381628][T11173] loop4: detected capacity change from 0 to 512 [ 83.407948][T11178] loop3: detected capacity change from 0 to 517 [ 83.416967][T11180] loop1: detected capacity change from 0 to 512 [ 83.428971][T11178] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 83.446157][T11190] loop0: detected capacity change from 0 to 512 [ 83.452115][T11198] loop5: detected capacity change from 0 to 512 [ 83.461314][T11195] loop2: detected capacity change from 0 to 512 [ 83.477594][T11202] loop1: detected capacity change from 0 to 512 [ 83.520099][T11219] loop4: detected capacity change from 0 to 512 [ 83.529912][T11213] loop3: detected capacity change from 0 to 512 [ 83.553590][T11198] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 83.574965][T11198] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/574/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 83.593904][T11229] loop1: detected capacity change from 0 to 512 [ 83.625331][ T349] EXT4-fs (loop5): unmounting filesystem. [ 83.652745][T11244] loop4: detected capacity change from 0 to 512 [ 83.662304][T11238] loop0: detected capacity change from 0 to 512 2025/12/20 23:13:47 executed programs: 3554 [ 83.670556][T11246] loop2: detected capacity change from 0 to 512 [ 83.676941][T11242] loop3: detected capacity change from 0 to 512 [ 83.715310][T11262] loop2: detected capacity change from 0 to 512 [ 83.745359][T11273] loop1: detected capacity change from 0 to 512 [ 83.766790][T11262] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 83.800735][T11296] loop5: detected capacity change from 0 to 512 [ 83.823268][T11307] loop0: detected capacity change from 0 to 512 [ 83.859425][T11325] loop5: detected capacity change from 0 to 512 [ 83.879030][T11318] loop2: detected capacity change from 0 to 519 [ 83.890104][T11330] loop3: detected capacity change from 0 to 512 [ 83.909118][T11333] loop1: detected capacity change from 0 to 512 [ 83.948633][T11342] loop0: detected capacity change from 0 to 512 [ 83.955242][T11349] loop2: detected capacity change from 0 to 512 [ 84.012494][T11374] loop2: detected capacity change from 0 to 512 [ 84.020816][T11377] loop0: detected capacity change from 0 to 512 [ 84.034406][T11389] loop5: detected capacity change from 0 to 512 [ 84.068671][T11404] loop4: detected capacity change from 0 to 512 [ 84.096906][T11400] loop1: detected capacity change from 0 to 519 [ 84.126624][T11415] loop5: detected capacity change from 0 to 512 [ 84.150704][T11429] loop2: detected capacity change from 0 to 512 [ 84.154683][T11432] loop1: detected capacity change from 0 to 512 [ 84.195370][T11444] loop3: detected capacity change from 0 to 512 [ 84.234948][T11465] loop4: detected capacity change from 0 to 512 [ 84.294195][T11490] EXT4-fs warning (device loop4): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 84.305442][T11484] loop0: detected capacity change from 0 to 512 [ 84.305530][T11488] loop5: detected capacity change from 0 to 512 [ 84.314641][T11465] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 84.326314][T11465] EXT4-fs (loop4): failed to initialize system zone (-117) [ 84.327437][T11487] loop2: detected capacity change from 0 to 512 [ 84.370234][T11465] EXT4-fs (loop4): mount failed [ 84.391685][T11503] loop3: detected capacity change from 0 to 512 [ 84.419784][T11512] loop5: detected capacity change from 0 to 512 [ 84.461372][T11521] loop2: detected capacity change from 0 to 512 [ 84.516155][T11544] loop5: detected capacity change from 0 to 512 [ 84.535478][T11554] loop2: detected capacity change from 0 to 519 [ 84.546335][T11558] loop0: detected capacity change from 0 to 512 [ 84.553621][T11560] loop4: detected capacity change from 0 to 512 [ 84.599801][T11576] loop2: detected capacity change from 0 to 512 [ 84.620695][T11581] loop4: detected capacity change from 0 to 512 [ 84.650747][T11597] loop1: detected capacity change from 0 to 512 [ 84.657474][T11588] loop3: detected capacity change from 0 to 512 [ 84.667772][T11581] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 84.684426][T11602] loop5: detected capacity change from 0 to 512 [ 84.702290][T11599] loop2: detected capacity change from 0 to 512 [ 84.709091][T11581] EXT4-fs (loop4): group descriptors corrupted! [ 84.736718][T11608] loop0: detected capacity change from 0 to 512 [ 84.745768][T11614] loop3: detected capacity change from 0 to 512 [ 84.762331][T11617] loop2: detected capacity change from 0 to 512 [ 84.780414][T11623] loop5: detected capacity change from 0 to 512 [ 84.788456][T11621] loop1: detected capacity change from 0 to 512 [ 84.815263][T11631] loop3: detected capacity change from 0 to 512 [ 84.891171][T11660] loop1: detected capacity change from 0 to 512 [ 84.914339][T11663] loop4: detected capacity change from 0 to 512 [ 84.958784][T11692] loop5: detected capacity change from 0 to 512 [ 85.007358][T11714] loop0: detected capacity change from 0 to 512 [ 85.016109][T11717] loop4: detected capacity change from 0 to 512 [ 85.089551][T11744] loop3: detected capacity change from 0 to 512 [ 85.124325][T11744] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 85.149379][T11774] loop2: detected capacity change from 0 to 512 [ 85.191679][T11789] loop1: detected capacity change from 0 to 512 [ 85.200003][T11791] loop4: detected capacity change from 0 to 512 [ 85.252102][T11806] loop0: detected capacity change from 0 to 518 [ 85.276405][T11824] loop1: detected capacity change from 0 to 512 [ 85.278240][T11791] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 85.304746][T11791] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/610/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 85.367203][ T344] EXT4-fs (loop4): unmounting filesystem. [ 85.401453][T11848] loop2: detected capacity change from 0 to 512 [ 85.402558][T11860] loop4: detected capacity change from 0 to 519 [ 85.449052][T11867] loop0: detected capacity change from 0 to 512 [ 85.467739][T11868] loop5: detected capacity change from 0 to 519 [ 85.480733][T11867] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 85.492519][T11887] loop3: detected capacity change from 0 to 512 [ 85.504331][T11890] loop2: detected capacity change from 0 to 512 [ 85.534641][T11899] loop5: detected capacity change from 0 to 512 [ 85.550929][T11906] loop0: detected capacity change from 0 to 512 [ 85.574667][T11911] loop1: detected capacity change from 0 to 512 [ 85.588349][T11917] loop2: detected capacity change from 0 to 512 [ 85.626848][T11917] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 85.635873][T11932] loop3: detected capacity change from 0 to 512 [ 85.651503][T11938] loop0: detected capacity change from 0 to 512 [ 85.671028][T11945] loop4: detected capacity change from 0 to 512 [ 85.690870][T11932] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 85.691991][T11950] loop2: detected capacity change from 0 to 512 [ 85.746538][T11932] EXT4-fs (loop3): group descriptors corrupted! [ 85.770702][T11974] loop2: detected capacity change from 0 to 512 [ 85.777480][T11971] loop4: detected capacity change from 0 to 512 [ 85.792832][T11980] loop5: detected capacity change from 0 to 512 [ 85.821414][T11991] EXT4-fs warning (device loop4): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 85.837279][T11971] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 85.854907][T11996] loop0: detected capacity change from 0 to 512 [ 85.870257][T12002] loop1: detected capacity change from 0 to 512 [ 85.886757][T12004] loop3: detected capacity change from 0 to 512 [ 85.895760][T11971] EXT4-fs (loop4): failed to initialize system zone (-117) [ 85.930398][T11971] EXT4-fs (loop4): mount failed [ 85.936014][T12002] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 85.944750][T12013] loop2: detected capacity change from 0 to 512 [ 85.976326][T12020] loop0: detected capacity change from 0 to 512 [ 85.996274][T12004] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 86.008764][T12025] loop4: detected capacity change from 0 to 512 [ 86.018757][T12004] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/642/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 86.028491][T12025] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 86.043973][T12022] loop5: detected capacity change from 0 to 512 [ 86.060417][T12029] loop0: detected capacity change from 0 to 512 [ 86.076871][T12032] loop1: detected capacity change from 0 to 512 [ 86.085377][T12034] loop2: detected capacity change from 0 to 512 [ 86.099190][ T347] EXT4-fs (loop3): unmounting filesystem. [ 86.102996][T12029] EXT4-fs (loop0): Magic mismatch, very weird! [ 86.157551][T12054] loop1: detected capacity change from 0 to 512 [ 86.193413][T12074] loop5: detected capacity change from 0 to 512 [ 86.205186][T12079] loop3: detected capacity change from 0 to 512 [ 86.222487][T12075] loop4: detected capacity change from 0 to 512 [ 86.291825][T12101] loop5: detected capacity change from 0 to 512 [ 86.291889][T12111] loop2: detected capacity change from 0 to 512 [ 86.304624][T12115] loop1: detected capacity change from 0 to 512 [ 86.312013][T12118] loop4: detected capacity change from 0 to 519 [ 86.329622][T12121] loop0: detected capacity change from 0 to 512 [ 86.379932][T12141] loop0: detected capacity change from 0 to 512 [ 86.414899][T12153] loop5: detected capacity change from 0 to 512 [ 86.423777][T12152] loop4: detected capacity change from 0 to 512 [ 86.435646][T12160] loop2: detected capacity change from 0 to 512 [ 86.469138][T12173] loop1: detected capacity change from 0 to 512 [ 86.483195][T12169] EXT4-fs warning (device loop5): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 86.501110][T12153] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 86.512129][T12153] EXT4-fs (loop5): failed to initialize system zone (-117) [ 86.519564][T12153] EXT4-fs (loop5): mount failed [ 86.540399][T12181] loop0: detected capacity change from 0 to 512 [ 86.548826][T12183] loop3: detected capacity change from 0 to 512 [ 86.582508][T12196] loop2: detected capacity change from 0 to 512 [ 86.604042][T12195] blk_print_req_error: 784 callbacks suppressed [ 86.604059][T12195] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 86.620461][T12195] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 86.630508][T12203] loop3: detected capacity change from 0 to 512 [ 86.630515][T12201] loop1: detected capacity change from 0 to 512 [ 86.650488][T12207] loop5: detected capacity change from 0 to 512 [ 86.661165][T12213] loop4: detected capacity change from 0 to 512 [ 86.681945][T12216] loop1: detected capacity change from 0 to 512 [ 86.693741][T12206] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 86.724449][T12222] loop3: detected capacity change from 0 to 517 [ 86.750376][T12229] loop2: detected capacity change from 0 to 512 [ 86.758348][T12237] loop0: detected capacity change from 0 to 512 [ 86.770518][T12236] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 86.786339][T12242] loop4: detected capacity change from 0 to 512 [ 86.806999][T12252] loop3: detected capacity change from 0 to 512 [ 86.809580][T12240] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 86.823030][T12240] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 86.844830][T12256] loop5: detected capacity change from 0 to 512 [ 86.863553][T12264] loop2: detected capacity change from 0 to 512 [ 86.869853][T12254] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 86.869987][T12254] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 86.888976][T12254] I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 86.898012][T12261] I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 86.920082][T12269] loop1: detected capacity change from 0 to 512 [ 86.921337][T12271] loop4: detected capacity change from 0 to 512 [ 86.976770][T12286] loop0: detected capacity change from 0 to 512 [ 86.991479][T12271] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 87.000419][T12292] loop5: detected capacity change from 0 to 512 [ 87.050296][T12318] loop1: detected capacity change from 0 to 512 [ 87.114896][T12337] loop4: detected capacity change from 0 to 512 [ 87.142605][T12356] loop2: detected capacity change from 0 to 512 [ 87.157091][T12318] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: writeback. [ 87.166105][T12318] ext4 filesystem being mounted at /root/syzkaller-testdir2406300145/syzkaller.XSsq7f/667/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.194409][ T350] EXT4-fs (loop1): unmounting filesystem. [ 87.203935][T12366] loop3: detected capacity change from 0 to 512 [ 87.210359][T12364] loop4: detected capacity change from 0 to 512 [ 87.222958][T12356] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 87.240122][T12378] loop1: detected capacity change from 0 to 512 [ 87.245481][T12381] loop5: detected capacity change from 0 to 512 [ 87.257077][T12364] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 87.267539][T12366] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 87.275585][T12356] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/674/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.293035][T12381] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 87.311047][T12390] loop0: detected capacity change from 0 to 512 [ 87.315805][T12381] EXT4-fs (loop5): failed to initialize system zone (-117) [ 87.331488][ T339] EXT4-fs (loop2): unmounting filesystem. [ 87.358297][T12381] EXT4-fs (loop5): mount failed [ 87.370161][T12394] loop1: detected capacity change from 0 to 512 [ 87.383424][T12402] loop2: detected capacity change from 0 to 512 [ 87.395394][T12390] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 87.407103][T12390] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/638/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.411006][T12410] loop3: detected capacity change from 0 to 512 [ 87.433467][T12414] loop4: detected capacity change from 0 to 512 [ 87.446979][ T348] EXT4-fs (loop0): unmounting filesystem. [ 87.453315][T12415] loop5: detected capacity change from 0 to 512 [ 87.460484][T12414] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 87.486869][T12423] loop0: detected capacity change from 0 to 512 [ 87.491518][T12419] loop1: detected capacity change from 0 to 512 [ 87.505975][T12428] loop5: detected capacity change from 0 to 512 [ 87.515587][T12424] loop2: detected capacity change from 0 to 519 [ 87.526090][T12410] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 87.561617][T12437] loop4: detected capacity change from 0 to 512 [ 87.575575][T12440] loop2: detected capacity change from 0 to 512 [ 87.599790][T12444] loop1: detected capacity change from 0 to 512 [ 87.617216][T12453] loop5: detected capacity change from 0 to 512 [ 87.635221][T12456] loop3: detected capacity change from 0 to 512 [ 87.649016][T12453] EXT4-fs (loop5): Magic mismatch, very weird! [ 87.660487][T12464] loop4: detected capacity change from 0 to 512 [ 87.716778][T12485] loop4: detected capacity change from 0 to 512 [ 87.724414][T12476] loop5: detected capacity change from 0 to 519 [ 87.735117][T12491] loop3: detected capacity change from 0 to 512 [ 87.744685][T12494] loop0: detected capacity change from 0 to 518 [ 87.766774][T12500] loop1: detected capacity change from 0 to 512 [ 87.780798][T12503] loop2: detected capacity change from 0 to 512 [ 87.813191][T12514] loop4: detected capacity change from 0 to 512 [ 87.820128][T12507] loop5: detected capacity change from 0 to 512 [ 87.827447][T12513] loop3: detected capacity change from 0 to 512 [ 87.843024][T12509] loop1: detected capacity change from 0 to 512 [ 87.851635][T12518] loop0: detected capacity change from 0 to 512 [ 87.891210][T12527] loop3: detected capacity change from 0 to 512 [ 87.926319][T12542] loop5: detected capacity change from 0 to 512 [ 87.931632][T12545] loop1: detected capacity change from 0 to 519 [ 87.953223][T12533] loop0: detected capacity change from 0 to 518 [ 87.959936][T12537] loop2: detected capacity change from 0 to 512 [ 87.970207][T12551] EXT4-fs warning (device loop5): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 87.981082][T12542] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 87.997791][T12542] EXT4-fs (loop5): failed to initialize system zone (-117) [ 88.009579][T12560] loop4: detected capacity change from 0 to 512 [ 88.023156][T12557] loop3: detected capacity change from 0 to 512 [ 88.030872][T12542] EXT4-fs (loop5): mount failed [ 88.037641][T12555] buffer_io_error: 780 callbacks suppressed [ 88.037663][T12555] Buffer I/O error on dev loop4, logical block 0, async page read [ 88.053998][T12565] loop0: detected capacity change from 0 to 512 [ 88.062884][T12568] loop2: detected capacity change from 0 to 519 [ 88.107240][T12583] loop1: detected capacity change from 0 to 519 [ 88.137725][T12582] Buffer I/O error on dev loop1, logical block 0, async page read [ 88.147692][T12594] loop3: detected capacity change from 0 to 512 [ 88.154388][T12592] loop4: detected capacity change from 0 to 512 [ 88.160834][T12589] loop2: detected capacity change from 0 to 519 [ 88.170127][T12599] loop5: detected capacity change from 0 to 512 [ 88.179041][T12591] Buffer I/O error on dev loop4, logical block 0, async page read [ 88.195727][T12604] loop0: detected capacity change from 0 to 512 [ 88.208766][T12603] Buffer I/O error on dev loop0, logical block 0, async page read [ 88.220917][T12610] loop2: detected capacity change from 0 to 512 [ 88.229673][T12613] loop3: detected capacity change from 0 to 512 [ 88.245161][T12610] EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 88.262839][T12607] loop1: detected capacity change from 0 to 512 [ 88.269350][T12613] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.274162][T12610] EXT4-fs (loop2): group descriptors corrupted! [ 88.336178][T12646] loop5: detected capacity change from 0 to 512 [ 88.370111][T12659] loop2: detected capacity change from 0 to 512 [ 88.381543][T12646] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 88.398221][T12646] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/649/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.420087][T12657] Buffer I/O error on dev loop2, logical block 0, async page read [ 88.442849][ T349] EXT4-fs (loop5): unmounting filesystem. [ 88.450076][T12676] loop3: detected capacity change from 0 to 512 [ 88.462000][T12678] loop0: detected capacity change from 0 to 512 [ 88.468853][T12672] loop1: detected capacity change from 0 to 512 [ 88.472965][T12674] Buffer I/O error on dev loop0, logical block 0, async page read [ 88.484684][T12681] loop4: detected capacity change from 0 to 512 [ 88.495590][T12676] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 88.531026][T12696] loop1: detected capacity change from 0 to 512 [ 88.540545][T12692] Buffer I/O error on dev loop1, logical block 0, async page read [ 88.546748][T12690] loop2: detected capacity change from 0 to 512 [ 88.555575][T12699] loop3: detected capacity change from 0 to 512 [ 88.555590][T12688] loop4: detected capacity change from 0 to 512 [ 88.580594][T12705] loop4: detected capacity change from 0 to 512 [ 88.591419][T12698] Buffer I/O error on dev loop3, logical block 0, async page read [ 88.597593][T12704] Buffer I/O error on dev loop4, logical block 0, async page read [ 88.620132][T12712] loop2: detected capacity change from 0 to 512 [ 88.661316][T12723] loop3: detected capacity change from 0 to 512 [ 88.683194][T12728] loop0: detected capacity change from 0 to 518 [ 88.704558][T12741] loop4: detected capacity change from 0 to 512 2025/12/20 23:13:52 executed programs: 4039 [ 88.730467][T12744] loop5: detected capacity change from 0 to 512 [ 88.739204][T12748] loop2: detected capacity change from 0 to 512 [ 88.743999][T12746] Buffer I/O error on dev loop2, logical block 0, async page read [ 88.762021][T12758] loop1: detected capacity change from 0 to 512 [ 88.782369][T12763] loop0: detected capacity change from 0 to 518 [ 88.792700][T12741] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 88.794272][T12767] loop3: detected capacity change from 0 to 512 [ 88.805620][T12741] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/655/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.830100][ T344] EXT4-fs (loop4): unmounting filesystem. [ 88.841221][T12758] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.863305][T12778] loop4: detected capacity change from 0 to 512 [ 88.869854][T12767] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.931050][T12805] loop1: detected capacity change from 0 to 512 [ 88.942696][T12811] loop4: detected capacity change from 0 to 512 [ 88.989510][T12828] loop3: detected capacity change from 0 to 512 [ 89.031792][T12844] loop1: detected capacity change from 0 to 512 [ 89.043649][T12828] EXT4-fs (loop3): Magic mismatch, very weird! [ 89.055891][T12853] loop2: detected capacity change from 0 to 512 [ 89.073359][T12844] EXT4-fs (loop1): Magic mismatch, very weird! [ 89.093006][T12853] EXT4-fs (loop2): Magic mismatch, very weird! [ 89.118902][T12876] loop0: detected capacity change from 0 to 512 [ 89.144473][T12885] loop4: detected capacity change from 0 to 512 [ 89.153166][T12882] loop3: detected capacity change from 0 to 512 [ 89.222586][T12915] loop5: detected capacity change from 0 to 512 [ 89.235691][T12920] loop1: detected capacity change from 0 to 512 [ 89.240438][T12910] loop4: detected capacity change from 0 to 512 [ 89.281334][T12936] loop3: detected capacity change from 0 to 512 [ 89.298389][T12933] loop0: detected capacity change from 0 to 512 [ 89.316211][T12939] loop1: detected capacity change from 0 to 512 [ 89.316220][T12910] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 89.316288][T12910] EXT4-fs (loop4): failed to initialize system zone (-117) [ 89.341459][T12910] EXT4-fs (loop4): mount failed [ 89.381234][T12960] loop3: detected capacity change from 0 to 512 [ 89.390638][T12962] loop2: detected capacity change from 0 to 512 [ 89.400895][T12958] loop5: detected capacity change from 0 to 519 [ 89.433820][T12969] loop1: detected capacity change from 0 to 512 [ 89.457978][T12983] loop0: detected capacity change from 0 to 512 [ 89.480700][T12962] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 89.491852][T12994] loop3: detected capacity change from 0 to 512 [ 89.504633][T12991] loop5: detected capacity change from 0 to 512 [ 89.512194][T12962] ext4 filesystem being mounted at /root/syzkaller-testdir1527196547/syzkaller.t9sK6Q/706/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.555000][T12998] loop4: detected capacity change from 0 to 512 [ 89.555675][T13000] loop0: detected capacity change from 0 to 518 [ 89.570634][T13003] loop3: detected capacity change from 0 to 512 [ 89.579734][T12998] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 89.580631][ T339] EXT4-fs (loop2): unmounting filesystem. [ 89.603032][T13006] loop1: detected capacity change from 0 to 512 [ 89.609757][T13000] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 89.627986][T13000] ext4 filesystem being mounted at /root/syzkaller-testdir2260865650/syzkaller.DI0gbe/677/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.654910][T13019] loop4: detected capacity change from 0 to 512 [ 89.671804][T13014] loop5: detected capacity change from 0 to 512 [ 89.674724][T13023] loop3: detected capacity change from 0 to 512 [ 89.700331][ T348] EXT4-fs (loop0): unmounting filesystem. [ 89.702563][T13030] loop4: detected capacity change from 0 to 512 [ 89.740493][T13044] loop2: detected capacity change from 0 to 512 [ 89.751337][T13039] loop0: detected capacity change from 0 to 512 [ 89.767052][T13041] loop5: detected capacity change from 0 to 512 [ 89.789969][T13059] loop4: detected capacity change from 0 to 512 [ 89.810786][T13039] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 89.864997][T13084] loop2: detected capacity change from 0 to 512 [ 89.871484][T13072] loop5: detected capacity change from 0 to 512 [ 89.876735][T13078] loop1: detected capacity change from 0 to 512 [ 89.898066][T13091] loop3: detected capacity change from 0 to 512 [ 89.929158][T13101] loop1: detected capacity change from 0 to 512 [ 89.937073][T13097] loop5: detected capacity change from 0 to 512 [ 89.944110][T13098] loop4: detected capacity change from 0 to 512 [ 89.955885][T13107] loop2: detected capacity change from 0 to 512 [ 89.973773][T13098] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 89.988463][T13109] EXT4-fs warning (device loop4): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 90.001009][T13110] EXT4-fs warning (device loop1): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 90.015294][T13098] EXT4-fs (loop4): failed to initialize system zone (-117) [ 90.022797][T13098] EXT4-fs (loop4): mount failed [ 90.032269][T13101] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 90.057382][T13101] EXT4-fs (loop1): failed to initialize system zone (-117) [ 90.066963][T13101] EXT4-fs (loop1): mount failed [ 90.073702][T13120] loop2: detected capacity change from 0 to 512 [ 90.079284][T13123] loop5: detected capacity change from 0 to 512 [ 90.093063][T13132] loop3: detected capacity change from 0 to 512 [ 90.101397][T13129] loop4: detected capacity change from 0 to 512 [ 90.121746][T13135] loop0: detected capacity change from 0 to 512 [ 90.144705][T13143] loop5: detected capacity change from 0 to 512 [ 90.171790][T13154] loop2: detected capacity change from 0 to 512 [ 90.178857][T13129] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. [ 90.195677][T13158] loop0: detected capacity change from 0 to 518 [ 90.231678][T13129] ext4 filesystem being mounted at /root/syzkaller-testdir2152205987/syzkaller.nQHtfn/673/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 90.303337][T13169] loop3: detected capacity change from 0 to 512 [ 90.333495][ T344] EXT4-fs (loop4): unmounting filesystem. [ 90.349725][T13190] loop0: detected capacity change from 0 to 512 [ 90.362211][T13193] loop1: detected capacity change from 0 to 512 [ 90.399285][T13211] loop4: detected capacity change from 0 to 512 [ 90.421891][T13219] loop5: detected capacity change from 0 to 512 [ 90.421907][T13211] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 90.445111][T13208] loop2: detected capacity change from 0 to 512 [ 90.462875][T13227] loop3: detected capacity change from 0 to 512 [ 90.496858][T13232] loop4: detected capacity change from 0 to 512 [ 90.514167][T13239] loop1: detected capacity change from 0 to 512 [ 90.553094][T13256] loop5: detected capacity change from 0 to 512 [ 90.583873][T13269] loop0: detected capacity change from 0 to 512 [ 90.600440][T13278] loop1: detected capacity change from 0 to 512 [ 90.612272][T13283] loop2: detected capacity change from 0 to 512 [ 90.624437][T13286] loop3: detected capacity change from 0 to 512 [ 90.646281][T13292] loop0: detected capacity change from 0 to 512 [ 90.665028][T13286] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 90.718212][T13311] loop5: detected capacity change from 0 to 512 [ 90.729788][T13316] loop3: detected capacity change from 0 to 512 [ 90.757330][T13328] loop0: detected capacity change from 0 to 512 [ 90.761024][T13332] loop4: detected capacity change from 0 to 512 [ 90.791818][T13338] loop2: detected capacity change from 0 to 512 [ 90.836193][T13349] loop3: detected capacity change from 0 to 512 [ 90.845441][T13311] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 90.855711][T13311] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/688/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 90.896264][ T349] EXT4-fs (loop5): unmounting filesystem. [ 90.904828][T13360] loop2: detected capacity change from 0 to 512 [ 90.914108][T13354] loop1: detected capacity change from 0 to 512 [ 90.927413][T13362] loop0: detected capacity change from 0 to 512 [ 90.938579][T13360] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 90.949346][T13370] loop4: detected capacity change from 0 to 512 [ 90.979938][T13377] loop1: detected capacity change from 0 to 512 [ 91.000685][T13386] loop5: detected capacity change from 0 to 512 [ 91.045303][T13404] loop2: detected capacity change from 0 to 512 [ 91.066638][T13405] loop1: detected capacity change from 0 to 512 [ 91.080284][T13417] loop3: detected capacity change from 0 to 512 [ 91.109847][T13425] loop0: detected capacity change from 0 to 512 [ 91.125156][T13429] loop5: detected capacity change from 0 to 512 [ 91.133526][T13431] loop1: detected capacity change from 0 to 512 [ 91.154814][T13439] EXT4-fs warning (device loop3): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 91.172258][T13417] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 91.217918][T13417] EXT4-fs (loop3): failed to initialize system zone (-117) [ 91.225272][T13417] EXT4-fs (loop3): mount failed [ 91.239491][T13459] loop5: detected capacity change from 0 to 512 [ 91.260411][T13468] loop1: detected capacity change from 0 to 512 [ 91.260414][T13466] loop0: detected capacity change from 0 to 512 [ 91.276140][T13459] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 91.290301][T13475] loop4: detected capacity change from 0 to 512 [ 91.304425][T13480] loop3: detected capacity change from 0 to 512 [ 91.323825][T13484] loop5: detected capacity change from 0 to 512 [ 91.336333][T13487] loop2: detected capacity change from 0 to 512 [ 91.346524][T13475] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 91.364846][T13495] loop1: detected capacity change from 0 to 512 [ 91.388233][T13495] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 91.421640][T13504] loop5: detected capacity change from 0 to 519 [ 91.428777][T13511] loop4: detected capacity change from 0 to 512 [ 91.467479][T13530] loop0: detected capacity change from 0 to 518 [ 91.476547][T13511] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 91.504372][T13538] loop5: detected capacity change from 0 to 512 [ 91.520167][T13545] loop1: detected capacity change from 0 to 512 [ 91.531427][T13547] loop3: detected capacity change from 0 to 512 [ 91.554311][T13564] loop0: detected capacity change from 0 to 512 [ 91.594258][T13579] loop4: detected capacity change from 0 to 519 [ 91.613908][T13574] blk_print_req_error: 616 callbacks suppressed [ 91.613925][T13574] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 91.630327][T13574] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 91.646129][T13589] loop0: detected capacity change from 0 to 512 [ 91.658195][T13588] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 91.672844][T13588] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 91.691383][T13602] loop3: detected capacity change from 0 to 512 [ 91.704644][T13607] loop2: detected capacity change from 0 to 512 [ 91.728009][T13616] loop1: detected capacity change from 0 to 512 [ 91.728319][T13599] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 91.755750][T13618] loop4: detected capacity change from 0 to 512 [ 91.802379][T13636] loop5: detected capacity change from 0 to 512 [ 91.806942][T13618] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 91.827678][T13642] loop0: detected capacity change from 0 to 518 [ 91.864579][T13657] loop1: detected capacity change from 0 to 512 [ 91.881578][T13660] loop5: detected capacity change from 0 to 512 [ 91.912830][T13664] loop0: detected capacity change from 0 to 512 [ 91.916781][T13672] loop3: detected capacity change from 0 to 512 [ 91.944281][T13678] loop1: detected capacity change from 0 to 512 [ 91.944458][T13682] loop4: detected capacity change from 0 to 512 [ 91.961909][T13686] loop0: detected capacity change from 0 to 512 [ 91.983417][T13684] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 92.006905][T13693] EXT4-fs warning (device loop4): kmmpd:168: kmmpd being stopped since MMP feature has been disabled. [ 92.018715][T13682] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 92.044020][T13682] EXT4-fs (loop4): failed to initialize system zone (-117) [ 92.051629][T13682] EXT4-fs (loop4): mount failed [ 92.060096][T13707] loop3: detected capacity change from 0 to 512 [ 92.080631][T13716] loop1: detected capacity change from 0 to 512 [ 92.113756][T13722] loop5: detected capacity change from 0 to 512 [ 92.133625][T13707] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. [ 92.150704][T13707] ext4 filesystem being mounted at /root/syzkaller-testdir4154294958/syzkaller.Dg5E09/729/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 92.162527][T13722] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 92.168645][T13739] loop4: detected capacity change from 0 to 512 [ 92.175284][T13741] loop0: detected capacity change from 0 to 512 [ 92.204333][T13736] loop2: detected capacity change from 0 to 519 [ 92.222853][ T347] EXT4-fs (loop3): unmounting filesystem. [ 92.224082][T13749] loop4: detected capacity change from 0 to 519 [ 92.235476][T13747] I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 92.252830][T13745] loop1: detected capacity change from 0 to 519 [ 92.266548][T13751] loop0: detected capacity change from 0 to 512 [ 92.273031][T13757] loop5: detected capacity change from 0 to 512 [ 92.348768][T13757] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. [ 92.368340][T13795] loop3: detected capacity change from 0 to 512 [ 92.375110][T13757] ext4 filesystem being mounted at /root/syzkaller-testdir2237745019/syzkaller.Uu8v0G/710/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 92.397793][ T349] EXT4-fs (loop5): unmounting filesystem. [ 92.406151][T13803] loop4: detected capacity change from 0 to 512 [ 92.422385][T13812] loop5: detected capacity change from 0 to 512 [ 92.430099][T13807] loop2: detected capacity change from 0 to 512 [ 92.445629][T13803] ------------[ cut here ]------------ [ 92.451246][T13803] kernel BUG at fs/ext4/super.c:6993! [ 92.460704][T13815] loop3: detected capacity change from 0 to 512 [ 92.474350][T13803] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 92.480487][T13803] CPU: 0 PID: 13803 Comm: syz-executor.4 Not tainted syzkaller #0 [ 92.488331][T13803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 92.498439][T13803] RIP: 0010:ext4_enable_quotas+0x6c9/0x6d0 [ 92.504390][T13803] Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a4 fa ff ff 4c 89 f7 e8 e6 2a bf ff e9 97 fa ff ff e8 cc 53 f8 02 e8 87 b0 7a ff <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 11 c0 4f [ 92.524052][T13803] RSP: 0018:ffffc90001f6f890 EFLAGS: 00010293 [ 92.530185][T13803] RAX: ffffffff81f57979 RBX: ffff888115cab000 RCX: ffff8881280ea880 [ 92.538545][T13803] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.546590][T13803] RBP: ffffc90001f6f930 R08: dffffc0000000000 R09: ffffed10250b9839 [ 92.554682][T13803] R10: ffffed10250b9839 R11: 1ffff110250b9838 R12: 0000000000000004 [ 92.562790][T13803] R13: ffff88810d427464 R14: 0000000000000000 R15: 0000000000000001 [ 92.570796][T13803] FS: 00007f8c289cc6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 92.579849][T13803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.586472][T13803] CR2: 00007f50a2957f28 CR3: 000000010f009000 CR4: 00000000003506b0 [ 92.594492][T13803] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.602502][T13803] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.610509][T13803] Call Trace: [ 92.613816][T13803] [ 92.616774][T13803] ext4_fill_super+0x70c1/0x7950 [ 92.621761][T13803] ? __cfi_ext4_fill_super+0x10/0x10 [ 92.627098][T13803] ? snprintf+0xd7/0x120 [ 92.631387][T13803] ? __cfi_snprintf+0x10/0x10 [ 92.636109][T13803] ? mutex_unlock+0x89/0x220 [ 92.640745][T13803] ? set_blocksize+0x1df/0x360 [ 92.645548][T13803] ? sb_set_blocksize+0xaa/0xf0 [ 92.650442][T13803] get_tree_bdev+0x444/0x680 [ 92.655101][T13803] ? __cfi_ext4_fill_super+0x10/0x10 [ 92.660426][T13803] ext4_get_tree+0x1c/0x20 [ 92.664895][T13803] vfs_get_tree+0x9a/0x270 [ 92.669356][T13803] do_new_mount+0x25a/0xa20 [ 92.673906][T13803] path_mount+0x675/0x1010 [ 92.678366][T13803] ? user_path_at_empty+0x161/0x1c0 [ 92.683692][T13803] __se_sys_mount+0x318/0x380 [ 92.688417][T13803] ? do_mkdirat+0x459/0x4c0 [ 92.692964][T13803] ? __x64_sys_mount+0xd0/0xd0 [ 92.697769][T13803] __x64_sys_mount+0xbf/0xd0 [ 92.702418][T13803] x64_sys_call+0x65d/0x9a0 [ 92.706967][T13803] do_syscall_64+0x4c/0xa0 [ 92.711505][T13803] ? clear_bhb_loop+0x30/0x80 [ 92.716532][T13803] ? clear_bhb_loop+0x30/0x80 [ 92.721259][T13803] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 92.727302][T13803] RIP: 0033:0x7f8c27c7e1ea [ 92.731753][T13803] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 92.751492][T13803] RSP: 002b:00007f8c289cbee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 92.760031][T13803] RAX: ffffffffffffffda RBX: 00007f8c289cbf80 RCX: 00007f8c27c7e1ea [ 92.768042][T13803] RDX: 00000000200005c0 RSI: 0000000020000000 RDI: 00007f8c289cbf40 [ 92.776171][T13803] RBP: 00000000200005c0 R08: 00007f8c289cbf80 R09: 0000000000200810 [ 92.784192][T13803] R10: 0000000000200810 R11: 0000000000000246 R12: 0000000020000000 [ 92.792198][T13803] R13: 00007f8c289cbf40 R14: 00000000000004da R15: 0000000020001400 [ 92.800296][T13803] [ 92.803360][T13803] Modules linked in: [ 92.820001][T13826] loop0: detected capacity change from 0 to 512 [ 92.833115][T13829] loop3: detected capacity change from 0 to 512 [ 92.842683][T13823] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 92.860326][T13823] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 92.883456][T13803] ---[ end trace 0000000000000000 ]--- [ 92.892025][T13803] RIP: 0010:ext4_enable_quotas+0x6c9/0x6d0 [ 92.901713][T13803] Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a4 fa ff ff 4c 89 f7 e8 e6 2a bf ff e9 97 fa ff ff e8 cc 53 f8 02 e8 87 b0 7a ff <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 11 c0 4f [ 92.924339][T13803] RSP: 0018:ffffc90001f6f890 EFLAGS: 00010293 [ 92.931355][T13803] RAX: ffffffff81f57979 RBX: ffff888115cab000 RCX: ffff8881280ea880 [ 92.939496][T13803] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.947949][T13803] RBP: ffffc90001f6f930 R08: dffffc0000000000 R09: ffffed10250b9839 [ 92.956014][T13803] R10: ffffed10250b9839 R11: 1ffff110250b9838 R12: 0000000000000004 [ 92.969617][T13803] R13: ffff88810d427464 R14: 0000000000000000 R15: 0000000000000001 [ 92.977808][T13803] FS: 00007f8c289cc6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 92.995814][T13803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.005072][T13803] CR2: 00007fcd54b78038 CR3: 000000010f009000 CR4: 00000000003506b0 [ 93.043543][T13803] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.055474][T13803] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.094481][T13803] Kernel panic - not syncing: Fatal exception [ 93.101146][T13803] Kernel Offset: disabled [ 93.105489][T13803] Rebooting in 86400 seconds..