Warning: Permanently added '10.128.0.15' (ED25519) to the list of known hosts. 2026/04/08 18:57:47 ignoring optional flag "type"="gce" 2026/04/08 18:57:47 parsed 1 programs 2026/04/08 18:57:47 executed programs: 0 [ 42.892882][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.899912][ T325] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.907284][ T325] device bridge_slave_0 entered promiscuous mode [ 42.915184][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.922269][ T325] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.929757][ T325] device bridge_slave_1 entered promiscuous mode [ 42.946285][ T324] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.953403][ T324] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.961043][ T324] device bridge_slave_0 entered promiscuous mode [ 42.968842][ T324] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.975943][ T324] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.983257][ T324] device bridge_slave_1 entered promiscuous mode [ 42.995278][ T331] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.002481][ T331] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.010086][ T331] device bridge_slave_0 entered promiscuous mode [ 43.017831][ T331] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.024952][ T331] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.032586][ T331] device bridge_slave_1 entered promiscuous mode [ 43.115087][ T329] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.122500][ T329] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.129877][ T329] device bridge_slave_0 entered promiscuous mode [ 43.138349][ T329] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.145806][ T329] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.153202][ T329] device bridge_slave_1 entered promiscuous mode [ 43.188102][ T330] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.195191][ T330] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.202804][ T330] device bridge_slave_0 entered promiscuous mode [ 43.209629][ T330] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.216716][ T330] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.224062][ T330] device bridge_slave_1 entered promiscuous mode [ 43.251750][ T337] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.258888][ T337] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.266293][ T337] device bridge_slave_0 entered promiscuous mode [ 43.274722][ T337] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.282318][ T337] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.289801][ T337] device bridge_slave_1 entered promiscuous mode [ 43.399905][ T324] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.406977][ T324] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.414525][ T324] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.421732][ T324] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.431826][ T329] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.438898][ T329] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.446178][ T329] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.453204][ T329] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.475536][ T331] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.482592][ T331] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.489842][ T331] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.497052][ T331] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.508636][ T330] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.516054][ T330] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.523434][ T330] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.530567][ T330] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.547610][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.554788][ T325] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.562169][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.569182][ T325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.584207][ T337] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.591793][ T337] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.599067][ T337] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.606116][ T337] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.634848][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.642446][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.649798][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.657358][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.664940][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.672302][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.679572][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.687315][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.694521][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.701819][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.709065][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.716964][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.724215][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.747057][ T329] device veth0_vlan entered promiscuous mode [ 43.754301][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.762790][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.771044][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.778577][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.786334][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.794717][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.801960][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.809930][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.818169][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.825218][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.832636][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.840949][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.873058][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.880539][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.888251][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.897023][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.904080][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.911608][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.919905][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.926980][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.934386][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.942136][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.955101][ T329] device veth1_macvtap entered promiscuous mode [ 43.967372][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 43.976419][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.984074][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.991748][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 43.999893][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.013412][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.021794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.029973][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.037093][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.045276][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 44.053417][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.061602][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.069875][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.078312][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.085345][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.093059][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 44.101435][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.119712][ T325] device veth0_vlan entered promiscuous mode [ 44.141090][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.149562][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.158082][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.166808][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.174700][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.183259][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.191599][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.198600][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.205982][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.214389][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.222554][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.229559][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.237064][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 44.245369][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.253369][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 44.261359][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.269325][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 44.277839][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.285462][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.292973][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 44.301406][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.308779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.316561][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.324971][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.333500][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.340509][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.348021][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.356480][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.364816][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.371846][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.392311][ T325] device veth1_macvtap entered promiscuous mode [ 44.412539][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.423202][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.430743][ T24] kauditd_printk_skb: 14 callbacks suppressed [ 44.430754][ T24] audit: type=1400 audit(1775674668.970:88): avc: denied { mounton } for pid=357 comm="syz-executor.0" path="/root/syzkaller-testdir3069711486/syzkaller.6k6iOh/0/bus" dev="sda1" ino=2044 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 44.432996][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.446328][ T358] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 44.465768][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.473086][ T24] audit: type=1400 audit(1775674669.020:89): avc: denied { mount } for pid=357 comm="syz-executor.0" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 44.481541][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.482157][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.489083][ T358] ext4 filesystem being mounted at /root/syzkaller-testdir3069711486/syzkaller.6k6iOh/0/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 44.527078][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.549547][ T24] audit: type=1400 audit(1775674669.090:90): avc: denied { write } for pid=357 comm="syz-executor.0" name="file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 44.572246][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.579286][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.584620][ T24] audit: type=1400 audit(1775674669.090:91): avc: denied { add_name } for pid=357 comm="syz-executor.0" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 44.587648][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 44.608074][ T24] audit: type=1400 audit(1775674669.090:92): avc: denied { create } for pid=357 comm="syz-executor.0" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 44.617825][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.636909][ T24] audit: type=1400 audit(1775674669.090:93): avc: denied { read write open } for pid=357 comm="syz-executor.0" path="/root/syzkaller-testdir3069711486/syzkaller.6k6iOh/0/bus/file0/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 44.645882][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 44.674300][ T24] audit: type=1400 audit(1775674669.090:94): avc: denied { mounton } for pid=357 comm="syz-executor.0" path="/root/syzkaller-testdir3069711486/syzkaller.6k6iOh/0/bus/file0/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 44.681633][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.708681][ T24] audit: type=1400 audit(1775674669.090:95): avc: denied { append } for pid=357 comm="syz-executor.0" path="/root/syzkaller-testdir3069711486/syzkaller.6k6iOh/0/bus/file0/blkio.throttle.io_service_bytes_recursive" dev="loop0" ino=19 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 44.717063][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.747382][ T24] audit: type=1400 audit(1775674669.160:96): avc: denied { unmount } for pid=329 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 44.755940][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.783409][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.798813][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 44.807171][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.825374][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 44.834405][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.842989][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 44.852755][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 44.861471][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 44.862425][ T366] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 44.869559][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.878368][ T366] ext4 filesystem being mounted at /root/syzkaller-testdir3069711486/syzkaller.6k6iOh/1/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 44.904605][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.912965][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.920458][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.936106][ T324] device veth0_vlan entered promiscuous mode [ 44.952753][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 44.963933][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.972396][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 44.981262][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.981947][ T372] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 44.994946][ T330] device veth0_vlan entered promiscuous mode [ 44.998556][ T372] ext4 filesystem being mounted at /root/syzkaller-testdir3069711486/syzkaller.6k6iOh/2/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.008267][ T331] device veth0_vlan entered promiscuous mode [ 45.038791][ T337] device veth0_vlan entered promiscuous mode [ 45.046057][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.055900][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.066765][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.080144][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.088538][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 45.089259][ T377] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [ 45.097315][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.106692][ T377] ext4 filesystem being mounted at /root/syzkaller-testdir4100621941/syzkaller.mMeDnq/0/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.115132][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.138118][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.157665][ T324] device veth1_macvtap entered promiscuous mode [ 45.173994][ T330] device veth1_macvtap entered promiscuous mode [ 45.181950][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.193140][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.201415][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.210074][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.219937][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.229776][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.238013][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.238784][ T383] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 45.246291][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.255568][ T383] ext4 filesystem being mounted at /root/syzkaller-testdir3069711486/syzkaller.6k6iOh/3/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.263749][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 45.322004][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.330489][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.332072][ T388] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [ 45.339673][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 45.348251][ T388] ext4 filesystem being mounted at /root/syzkaller-testdir4100621941/syzkaller.mMeDnq/1/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.378561][ T331] device veth1_macvtap entered promiscuous mode [ 45.400233][ T337] device veth1_macvtap entered promiscuous mode [ 45.407381][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.417127][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.426641][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 45.434821][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.443811][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.453045][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.453917][ T393] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 45.461440][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.478461][ T393] ext4 filesystem being mounted at /root/syzkaller-testdir3069711486/syzkaller.6k6iOh/4/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.478842][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.501980][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.510381][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.518723][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.527526][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.536074][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.544637][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 45.580604][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.591090][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.598200][ T399] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [ 45.608898][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.611943][ T399] ext4 filesystem being mounted at /root/syzkaller-testdir4100621941/syzkaller.mMeDnq/2/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.617851][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.640644][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.649207][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.658108][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.666647][ T363] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.746876][ T411] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue [ 45.756885][ T411] ext4 filesystem being mounted at /root/syzkaller-testdir977520858/syzkaller.05e59k/0/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.782583][ T415] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue [ 45.793279][ T408] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 45.806491][ T414] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue [ 45.821448][ T409] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue [ 45.831635][ T408] ext4 filesystem being mounted at /root/syzkaller-testdir3069711486/syzkaller.6k6iOh/5/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.846462][ T363] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5952: Out of memory [ 45.856011][ T414] ext4 filesystem being mounted at /root/syzkaller-testdir1075834742/syzkaller.RCABdF/0/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.861136][ T409] ext4 filesystem being mounted at /root/syzkaller-testdir2146363657/syzkaller.2j4Mud/0/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.873550][ T415] ext4 filesystem being mounted at /root/syzkaller-testdir3668283437/syzkaller.BSYEDL/0/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 45.900755][ T363] EXT4-fs error (device loop5): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:4: mark_inode_dirty error [ 45.921027][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -12) [ 45.938484][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 34: len 1: ext4_ext_map_blocks returned -28 [ 45.953165][ T363] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5952: Out of memory [ 45.962773][ T24] audit: type=1400 audit(1775674670.510:97): avc: denied { read } for pid=76 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 45.986448][ T112] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5952: Out of memory [ 45.993958][ T363] EXT4-fs error (device loop5): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:4: mark_inode_dirty error [ 46.003568][ T112] EXT4-fs error (device loop0): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:2: mark_inode_dirty error [ 46.008456][ T400] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5952: Out of memory [ 46.028718][ T112] EXT4-fs (loop0): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -12) [ 46.030220][ T408] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 19 with max blocks 29 with error 28 [ 46.045530][ T112] EXT4-fs error (device loop0): ext4_map_blocks:740: inode #19: block 1: comm kworker/u4:2: lblock 1 mapped to illegal pblock 1 (length 1) [ 46.056297][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 46.070098][ T408] EXT4-fs (loop0): This should not happen!! Data will be lost [ 46.070098][ T408] [ 46.070110][ T408] EXT4-fs (loop0): Total free blocks count 0 [ 46.070116][ T408] EXT4-fs (loop0): Free/Dirty block details [ 46.070123][ T408] EXT4-fs (loop0): free_blocks=0 [ 46.070129][ T408] EXT4-fs (loop0): dirty_blocks=0 [ 46.070133][ T408] EXT4-fs (loop0): Block reservation details [ 46.070139][ T408] EXT4-fs (loop0): i_reserved_data_blocks=0 [ 46.093190][ T400] EXT4-fs error (device loop2): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:5: mark_inode_dirty error [ 46.102458][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 35: len 1: ext4_ext_map_blocks returned -28 [ 46.105176][ T9] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5952: Out of memory [ 46.110012][ T363] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5952: Out of memory [ 46.121387][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -12) [ 46.127718][ T363] EXT4-fs error (device loop5): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:4: mark_inode_dirty error [ 46.141803][ T9] EXT4-fs error (device loop3): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:1: mark_inode_dirty error [ 46.154556][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 46.174920][ T414] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 37 with max blocks 11 with error 28 [ 46.198707][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 36: len 1: ext4_ext_map_blocks returned -28 [ 46.213111][ T414] EXT4-fs (loop3): This should not happen!! Data will be lost [ 46.213111][ T414] [ 46.227171][ T400] EXT4-fs error (device loop2): ext4_find_extent:928: inode #19: comm kworker/u4:5: pblk 208 bad header/extent: invalid magic - magic 6469, entries 8250, max 26723(0), depth 28525(0) [ 46.236568][ T414] EXT4-fs (loop3): Total free blocks count 0 [ 46.250448][ T9] EXT4-fs (loop3): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -12) [ 46.260312][ T414] EXT4-fs (loop3): Free/Dirty block details [ 46.278337][ T9] ================================================================== [ 46.284398][ T112] EXT4-fs warning (device loop0): ext4_convert_unwritten_extents:4875: inode #19: block 1: len 1: ext4_ext_map_blocks returned -117 [ 46.296754][ T9] BUG: KASAN: use-after-free in ext4_ext_insert_extent+0x28bc/0x45d0 [ 46.296763][ T9] Read of size 86724 at addr ffff888121a2e000 by task kworker/u4:1/9 [ 46.296765][ T9] [ 46.296778][ T9] CPU: 1 PID: 9 Comm: kworker/u4:1 Not tainted syzkaller #0 [ 46.296791][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 46.360807][ T9] Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work [ 46.367667][ T9] Call Trace: [ 46.370944][ T9] __dump_stack+0x21/0x24 [ 46.375281][ T9] dump_stack_lvl+0x1a7/0x208 [ 46.379956][ T9] ? show_regs_print_info+0x18/0x18 [ 46.385134][ T9] ? thaw_kernel_threads+0x220/0x220 [ 46.390498][ T9] print_address_description+0x7f/0x2c0 [ 46.396024][ T9] ? ext4_ext_insert_extent+0x28bc/0x45d0 [ 46.401805][ T9] kasan_report+0xe2/0x130 [ 46.406196][ T9] ? ext4_ext_insert_extent+0x28bc/0x45d0 [ 46.411900][ T9] kasan_check_range+0x249/0x2a0 [ 46.416900][ T9] ? ext4_ext_insert_extent+0x28bc/0x45d0 [ 46.422688][ T9] memmove+0x2d/0x70 [ 46.426599][ T9] ext4_ext_insert_extent+0x28bc/0x45d0 [ 46.432431][ T9] ? __read_extent_tree_block+0x1e8/0x790 [ 46.438216][ T9] ? ext4_ext_next_allocated_block+0x2e0/0x2e0 [ 46.444350][ T9] ? get_implied_cluster_alloc+0x526/0x940 [ 46.450134][ T9] ext4_ext_map_blocks+0x17a9/0x5dd0 [ 46.455404][ T9] ? ret_from_fork+0x1f/0x30 [ 46.459982][ T9] ? __kasan_check_write+0x14/0x20 [ 46.465077][ T9] ? _raw_spin_lock+0xf0/0xf0 [ 46.469729][ T9] ? worker_thread+0xa6a/0x13c0 [ 46.474598][ T9] ? ext4_ext_release+0x10/0x10 [ 46.479421][ T9] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 46.485213][ T9] ? ext4_es_lookup_extent+0x54c/0x900 [ 46.490736][ T9] ext4_map_blocks+0x985/0x1bd0 [ 46.495572][ T9] ? ext4_issue_zeroout+0x1a0/0x1a0 [ 46.500753][ T9] ? __kasan_check_read+0x11/0x20 [ 46.505766][ T9] ? __ext4_journal_start_sb+0x2e2/0x490 [ 46.511372][ T9] ext4_convert_unwritten_extents+0x227/0x400 [ 46.517637][ T9] ? trace_ext4_fallocate_exit+0x140/0x140 [ 46.523420][ T9] ? __kasan_check_write+0x14/0x20 [ 46.528599][ T9] ? _raw_spin_lock_irqsave+0xc2/0x130 [ 46.534033][ T9] ? _raw_spin_lock+0xf0/0xf0 [ 46.538687][ T9] ext4_convert_unwritten_io_end_vec+0x103/0x180 [ 46.545256][ T9] ext4_end_io_rsv_work+0x2c1/0x610 [ 46.550547][ T9] ? __kasan_check_write+0x14/0x20 [ 46.555725][ T9] ? ext4_last_io_end_vec+0x70/0x70 [ 46.560898][ T9] ? read_word_at_a_time+0x12/0x20 [ 46.565984][ T9] ? strscpy+0x9b/0x290 [ 46.570287][ T9] process_one_work+0x6e1/0xba0 [ 46.575228][ T9] worker_thread+0xa6a/0x13c0 [ 46.579884][ T9] kthread+0x346/0x3d0 [ 46.584133][ T9] ? worker_clr_flags+0x190/0x190 [ 46.589133][ T9] ? kthread_blkcg+0xd0/0xd0 [ 46.593794][ T9] ret_from_fork+0x1f/0x30 [ 46.598179][ T9] [ 46.600482][ T9] The buggy address belongs to the page: [ 46.606195][ T9] page:ffffea0004868b80 refcount:1 mapcount:1 mapping:0000000000000000 index:0x5620e59af pfn:0x121a2e [ 46.617117][ T9] anon flags: 0x4000000000080014(uptodate|lru|swapbacked) [ 46.624224][ T9] raw: 4000000000080014 ffffea000486b9c8 ffffea0004868bc8 ffff88810d667ac9 [ 46.632798][ T9] raw: 00000005620e59af 0000000000000000 0000000100000000 ffff888100142000 [ 46.641446][ T9] page dumped because: kasan: bad access detected [ 46.647833][ T9] page->mem_cgroup:ffff888100142000 [ 46.653096][ T9] page_owner tracks the page as allocated [ 46.659144][ T9] page last allocated via order 0, migratetype Movable, gfp_mask 0x100cca(GFP_HIGHUSER_MOVABLE), pid 94, ts 45778854389, free_ts 45764218779 [ 46.673824][ T9] prep_new_page+0x179/0x180 [ 46.678396][ T9] get_page_from_freelist+0x223b/0x23d0 [ 46.684017][ T9] __alloc_pages_nodemask+0x290/0x620 [ 46.689365][ T9] wp_page_copy+0x212/0x15f0 [ 46.693939][ T9] do_wp_page+0x9a6/0xc80 [ 46.698516][ T9] handle_pte_fault+0xac1/0x3750 [ 46.703641][ T9] handle_mm_fault+0xf81/0x1710 [ 46.708740][ T9] do_user_addr_fault+0x5a8/0xc90 [ 46.713847][ T9] exc_page_fault+0x5a/0xc0 [ 46.718323][ T9] asm_exc_page_fault+0x1e/0x30 [ 46.723149][ T9] page last free stack trace: [ 46.727804][ T9] free_unref_page_prepare+0x2b7/0x2d0 [ 46.733256][ T9] free_unref_page_list+0x129/0x9c0 [ 46.738429][ T9] release_pages+0xe52/0xea0 [ 46.743005][ T9] __pagevec_release+0x71/0xe0 [ 46.747827][ T9] shmem_undo_range+0x74a/0x1810 [ 46.752736][ T9] shmem_evict_inode+0x210/0xa00 [ 46.757651][ T9] evict+0x4ae/0x930 [ 46.761518][ T9] iput+0x638/0x7c0 [ 46.765307][ T9] dentry_unlink_inode+0x2cf/0x380 [ 46.770523][ T9] __dentry_kill+0x44f/0x650 [ 46.775425][ T9] dentry_kill+0xc0/0x2a0 [ 46.779755][ T9] dput+0x42/0x80 [ 46.783393][ T9] __fput+0x4fe/0x770 [ 46.787458][ T9] ____fput+0x15/0x20 [ 46.791599][ T9] task_work_run+0x127/0x190 [ 46.796168][ T9] exit_to_user_mode_loop+0xcb/0xe0 [ 46.801347][ T9] [ 46.803664][ T9] Memory state around the buggy address: [ 46.809798][ T9] ffff888121a40f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 46.818028][ T9] ffff888121a40f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 46.826115][ T9] >ffff888121a41000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 46.834169][ T9] ^ [ 46.838387][ T9] ffff888121a41080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 46.846428][ T9] ffff888121a41100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 46.854661][ T9] ================================================================== [ 46.862793][ T9] Disabling lock debugging due to kernel taint [ 46.880657][ T112] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5952: Out of memory [ 46.889855][ T363] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5952: Out of memory [ 46.890268][ T414] EXT4-fs (loop3): free_blocks=0 [ 46.899959][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 3: len 1: ext4_ext_map_blocks returned -117 [ 46.904359][ T414] EXT4-fs (loop3): dirty_blocks=0 [ 46.917590][ T9] EXT4-fs error (device loop3): ext4_map_blocks:740: inode #19: block 1: comm kworker/u4:1: lblock 1 mapped to illegal pblock 1 (length 1) [ 46.917764][ T363] EXT4-fs error (device loop5): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:4: mark_inode_dirty error [ 46.923233][ T414] EXT4-fs (loop3): Block reservation details [ 46.937248][ T112] EXT4-fs error (device loop0): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:2: mark_inode_dirty error [ 46.938402][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 1: len 1: ext4_ext_map_blocks returned -117 [ 46.951930][ T414] EXT4-fs (loop3): i_reserved_data_blocks=0 [ 46.956566][ T112] EXT4-fs (loop0): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 46.988034][ T400] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5952: Out of memory [ 46.988900][ T9] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5952: Out of memory [ 47.002289][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 47.012588][ T112] EXT4-fs error (device loop0): ext4_map_blocks:740: inode #19: block 2: comm kworker/u4:2: lblock 2 mapped to illegal pblock 2 (length 1) [ 47.021668][ T400] EXT4-fs error (device loop2): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:5: mark_inode_dirty error [ 47.033502][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 37: len 1: ext4_ext_map_blocks returned -28 [ 47.047647][ T9] EXT4-fs error (device loop3): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:1: mark_inode_dirty error [ 47.065446][ T363] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5952: Out of memory [ 47.081199][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.087335][ T112] EXT4-fs warning (device loop0): ext4_convert_unwritten_extents:4875: inode #19: block 2: len 1: ext4_ext_map_blocks returned -117 [ 47.110740][ T363] EXT4-fs error (device loop5): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:4: mark_inode_dirty error [ 47.123985][ T112] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5952: Out of memory [ 47.138105][ T9] EXT4-fs (loop3): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.146931][ T112] EXT4-fs error (device loop0): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:2: mark_inode_dirty error [ 47.164816][ T400] EXT4-fs error (device loop2): ext4_find_extent:928: inode #19: comm kworker/u4:5: pblk 208 bad header/extent: invalid magic - magic 6469, entries 8250, max 26723(0), depth 28525(0) [ 47.174217][ T112] EXT4-fs error (device loop0): ext4_map_blocks:740: inode #19: block 3: comm kworker/u4:2: lblock 3 mapped to illegal pblock 3 (length 1) [ 47.192432][ T9] EXT4-fs error (device loop3): ext4_map_blocks:740: inode #19: block 2: comm kworker/u4:1: lblock 2 mapped to illegal pblock 2 (length 1) [ 47.205965][ T112] EXT4-fs warning (device loop0): ext4_convert_unwritten_extents:4875: inode #19: block 3: len 1: ext4_ext_map_blocks returned -117 [ 47.220468][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 47.233720][ T112] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5952: Out of memory [ 47.247235][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 38: len 1: ext4_ext_map_blocks returned -28 [ 47.256640][ T112] EXT4-fs warning (device loop0): ext4_convert_unwritten_extents:4875: inode #19: block 4: len 1: ext4_ext_map_blocks returned -117 [ 47.269507][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 4: len 1: ext4_ext_map_blocks returned -117 [ 47.282928][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 2: len 1: ext4_ext_map_blocks returned -117 [ 47.297119][ T400] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5952: Out of memory [ 47.310508][ T9] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5952: Out of memory [ 47.320858][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 47.328474][ T9] EXT4-fs error (device loop3): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:1: mark_inode_dirty error [ 47.344914][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 39: len 1: ext4_ext_map_blocks returned -28 [ 47.354720][ T9] EXT4-fs error (device loop3): ext4_map_blocks:740: inode #19: block 3: comm kworker/u4:1: lblock 3 mapped to illegal pblock 3 (length 1) [ 47.369382][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 47.383054][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 3: len 1: ext4_ext_map_blocks returned -117 [ 47.397141][ T400] EXT4-fs error (device loop2): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:5: mark_inode_dirty error [ 47.409135][ T9] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5952: Out of memory [ 47.422503][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 40: len 1: ext4_ext_map_blocks returned -28 [ 47.432125][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 4: len 1: ext4_ext_map_blocks returned -117 [ 47.446077][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 47.461774][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 16: len 1: ext4_ext_map_blocks returned -28 [ 47.471713][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.485485][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 17: len 1: ext4_ext_map_blocks returned -28 [ 47.512323][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 18: len 1: ext4_ext_map_blocks returned -28 [ 47.526064][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 41: len 1: ext4_ext_map_blocks returned -28 [ 47.526326][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 19: len 1: ext4_ext_map_blocks returned -28 [ 47.553509][ T400] EXT4-fs error (device loop2): ext4_find_extent:928: inode #19: comm kworker/u4:5: pblk 208 bad header/extent: invalid magic - magic 6469, entries 8250, max 26723(0), depth 28525(0) [ 47.553729][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 20: len 1: ext4_ext_map_blocks returned -28 [ 47.586068][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 47.586126][ T9] EXT4-fs warning (device loop3): ext4_convert_unwritten_extents:4875: inode #19: block 21: len 1: ext4_ext_map_blocks returned -28 [ 47.612733][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 42: len 1: ext4_ext_map_blocks returned -28 [ 47.612839][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 5: len 1: ext4_ext_map_blocks returned -117 [ 47.627244][ T112] ------------[ cut here ]------------ [ 47.644550][ T363] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -28) [ 47.646408][ T112] kernel BUG at fs/ext4/extents.c:3184! [ 47.646450][ T112] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 47.646462][ T112] CPU: 0 PID: 112 Comm: kworker/u4:2 Tainted: G B syzkaller #0 [ 47.646468][ T112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 47.646492][ T112] Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work [ 47.646511][ T112] RIP: 0010:ext4_split_extent_at+0xe1f/0xe40 [ 47.646520][ T112] Code: a7 cf d2 ff e9 05 fc ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c 12 fc ff ff 48 89 df e8 6b cf d2 ff e9 05 fc ff ff e8 81 4f 98 ff <0f> 0b e8 7a 4f 98 ff 0f 0b e8 73 4f 98 ff 0f 0b e8 6c 4f 98 ff 0f [ 47.646527][ T112] RSP: 0018:ffffc90000ca74c0 EFLAGS: 00010293 [ 47.646537][ T112] RAX: ffffffff81cc63cf RBX: 1ffff110243600d5 RCX: ffff888111fe3b40 [ 47.646543][ T112] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000000b [ 47.646550][ T112] RBP: ffffc90000ca7620 R08: 0000000000000010 R09: 0000000040000018 [ 47.646556][ T112] R10: dffffc0000000000 R11: ffffed10228cfcea R12: 0000000000000010 [ 47.646562][ T112] R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000008 [ 47.646570][ T112] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 47.646576][ T112] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.646581][ T112] CR2: 00007f614bf02018 CR3: 000000011d9ea000 CR4: 00000000003506b0 [ 47.646595][ T112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.660147][ T363] EXT4-fs warning (device loop5): ext4_convert_unwritten_extents:4875: inode #19: block 43: len 1: ext4_ext_map_blocks returned -28 [ 47.664859][ T112] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.664864][ T112] Call Trace: [ 47.664884][ T112] ? ext4_ext_try_to_merge_right+0x820/0x820 [ 47.664892][ T112] ? ext4_find_extent+0xc9a/0xe20 [ 47.664900][ T112] ext4_split_extent+0x363/0x4a0 [ 47.664908][ T112] ext4_ext_map_blocks+0x23aa/0x5dd0 [ 47.664920][ T112] ? ret_from_fork+0x1f/0x30 [ 47.664937][ T112] ? stack_trace_snprint+0xf0/0xf0 [ 47.676076][ T400] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5952: Out of memory [ 47.679975][ T112] ? worker_thread+0xa6a/0x13c0 [ 47.679994][ T112] ? ext4_ext_release+0x10/0x10 [ 47.692168][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.696866][ T112] ? ext4_es_lookup_extent+0x54c/0x900 [ 47.696884][ T112] ext4_map_blocks+0x985/0x1bd0 2026/04/08 18:57:52 executed programs: 17 [ 47.703436][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 6: len 1: ext4_ext_map_blocks returned -117 [ 47.722835][ T112] ? ext4_issue_zeroout+0x1a0/0x1a0 [ 47.722848][ T112] ? __kasan_check_read+0x11/0x20 [ 47.722855][ T112] ? __ext4_journal_start_sb+0x2e2/0x490 [ 47.722865][ T112] ext4_convert_unwritten_extents+0x227/0x400 [ 47.722872][ T112] ? trace_ext4_fallocate_exit+0x140/0x140 [ 47.722892][ T112] ? kmem_cache_free+0x100/0x2d0 [ 47.729728][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.737001][ T112] ext4_convert_unwritten_io_end_vec+0x103/0x180 [ 47.737012][ T112] ext4_end_io_rsv_work+0x2c1/0x610 [ 47.737022][ T112] ? ext4_last_io_end_vec+0x70/0x70 [ 47.737031][ T112] process_one_work+0x6e1/0xba0 [ 47.737046][ T112] worker_thread+0xa6a/0x13c0 [ 47.745750][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 7: len 1: ext4_ext_map_blocks returned -117 [ 47.753072][ T112] kthread+0x346/0x3d0 [ 47.753080][ T112] ? worker_clr_flags+0x190/0x190 [ 47.753087][ T112] ? kthread_blkcg+0xd0/0xd0 [ 47.753097][ T112] ret_from_fork+0x1f/0x30 [ 47.753102][ T112] Modules linked in: [ 47.754059][ T112] ---[ end trace 59dbe1795b80a21e ]--- [ 47.769865][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.778309][ T112] RIP: 0010:ext4_split_extent_at+0xe1f/0xe40 [ 47.786678][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 8: len 1: ext4_ext_map_blocks returned -117 [ 47.793195][ T112] Code: a7 cf d2 ff e9 05 fc ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c 12 fc ff ff 48 89 df e8 6b cf d2 ff e9 05 fc ff ff e8 81 4f 98 ff <0f> 0b e8 7a 4f 98 ff 0f 0b e8 73 4f 98 ff 0f 0b e8 6c 4f 98 ff 0f [ 47.801871][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.815428][ T112] RSP: 0018:ffffc90000ca74c0 EFLAGS: 00010293 [ 47.829539][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 9: len 1: ext4_ext_map_blocks returned -117 [ 47.832234][ T112] [ 47.837391][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.842378][ T112] RAX: ffffffff81cc63cf RBX: 1ffff110243600d5 RCX: ffff888111fe3b40 [ 47.847699][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 10: len 1: ext4_ext_map_blocks returned -117 [ 47.852267][ T112] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000000b [ 47.857479][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.866341][ T112] RBP: ffffc90000ca7620 R08: 0000000000000010 R09: 0000000040000018 [ 47.871343][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 11: len 1: ext4_ext_map_blocks returned -117 [ 47.876087][ T112] R10: dffffc0000000000 R11: ffffed10228cfcea R12: 0000000000000010 [ 47.889014][ T400] EXT4-fs (loop2): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -117) [ 47.896560][ T112] R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000008 [ 47.900162][ T400] EXT4-fs warning (device loop2): ext4_convert_unwritten_extents:4875: inode #19: block 12: len 1: ext4_ext_map_blocks returned -117 [ 47.913211][ T112] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 48.018978][ T442] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue [ 48.021217][ T112] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.029001][ T442] ext4 filesystem being mounted at /root/syzkaller-testdir1075834742/syzkaller.RCABdF/1/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 48.039771][ T112] CR2: 00007f614bf02018 CR3: 000000010d5bb000 CR4: 00000000003506b0 [ 48.049197][ T443] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue [ 48.059444][ T112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.080291][ T443] ext4 filesystem being mounted at /root/syzkaller-testdir977520858/syzkaller.05e59k/1/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 48.092516][ T112] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.098651][ T444] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [ 48.112473][ T445] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue [ 48.219656][ T363] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5952: Out of memory [ 48.222083][ T445] ext4 filesystem being mounted at /root/syzkaller-testdir3668283437/syzkaller.BSYEDL/1/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 48.267497][ T9] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5952: Out of memory [ 48.275393][ T444] ext4 filesystem being mounted at /root/syzkaller-testdir4100621941/syzkaller.mMeDnq/3/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 48.283838][ T9] EXT4-fs error (device loop5): ext4_convert_unwritten_extents:4876: inode #19: comm kworker/u4:1: mark_inode_dirty error [ 48.300488][ T112] Kernel panic - not syncing: Fatal exception [ 48.315761][ T9] EXT4-fs (loop5): failed to convert unwritten extents to written extents -- potential data loss! (inode 19, error -12) [ 48.322927][ T112] Kernel Offset: disabled [ 48.423562][ T112] Rebooting in 86400 seconds..