Warning: Permanently added '10.128.1.156' (ED25519) to the list of known hosts. 2025/08/29 06:05:14 parsed 1 programs [ 47.201068][ T30] audit: type=1400 audit(1756447515.153:105): avc: denied { unlink } for pid=395 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" [ 47.236491][ T395] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 47.897134][ T30] audit: type=1401 audit(1756447515.843:106): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" [ 47.989562][ T30] audit: type=1400 audit(1756447515.933:107): avc: denied { create } for pid=424 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 48.064808][ T430] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.071969][ T430] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.079798][ T430] device bridge_slave_0 entered promiscuous mode [ 48.087001][ T430] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.094887][ T430] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.102705][ T430] device bridge_slave_1 entered promiscuous mode [ 48.141176][ T430] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.148440][ T430] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.156026][ T430] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.163155][ T430] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.181832][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.189267][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.197090][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 48.204881][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.214880][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.223361][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.230449][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.239535][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.248114][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.255500][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.266839][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.276493][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.289477][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 48.302034][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 48.310338][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 48.318042][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 48.326482][ T430] device veth0_vlan entered promiscuous mode [ 48.336199][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 48.345563][ T430] device veth1_macvtap entered promiscuous mode [ 48.354726][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 48.370355][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2025/08/29 06:05:16 executed programs: 0 [ 48.752706][ T460] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.760094][ T460] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.767639][ T460] device bridge_slave_0 entered promiscuous mode [ 48.775159][ T460] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.782947][ T460] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.790590][ T460] device bridge_slave_1 entered promiscuous mode [ 48.851616][ T460] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.858755][ T460] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.866391][ T460] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.873817][ T460] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.891476][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.899488][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.907499][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.918962][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.928360][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.935947][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.944890][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.953104][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.960216][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.972643][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.981912][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.995389][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.006091][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.014955][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.023159][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.031820][ T460] device veth0_vlan entered promiscuous mode [ 49.042929][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.052766][ T460] device veth1_macvtap entered promiscuous mode [ 49.062363][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 49.070952][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.080318][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 49.088812][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.111854][ T471] loop2: detected capacity change from 0 to 16 [ 49.192812][ T471] erofs: (device loop2): mounted with root inode @ nid 36. [ 49.200279][ T30] audit: type=1400 audit(1756447517.143:108): avc: denied { mount } for pid=470 comm="syz.2.16" name="/" dev="loop2" ino=36 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 49.208017][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.231822][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 49.241379][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.251262][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 49.260575][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 49.269739][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 49.278941][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 49.288363][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 49.297836][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 49.307265][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.316954][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 49.326333][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 49.335515][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 49.345195][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.354683][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 49.364100][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 49.373609][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 49.383106][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 49.392861][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 49.402319][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 49.411565][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.421145][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 49.430527][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 49.439732][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 49.449290][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.458836][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 49.468298][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 49.477848][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 49.487136][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 49.496958][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 49.506520][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 49.515767][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.525397][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 49.534818][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 49.544518][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 49.553784][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.563268][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 49.572563][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 49.581881][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 49.591124][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 49.600314][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 49.609838][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 49.619512][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.629117][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 49.638570][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 49.647986][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 49.657345][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.667090][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 49.676556][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 49.686512][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 49.697172][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 49.706486][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 49.716031][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 49.725718][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.735434][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 49.744869][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 49.754454][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 49.764207][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.774277][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 49.783631][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 49.792784][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 49.801853][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 49.810947][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 49.820066][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 49.829274][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.838604][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 49.849011][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 49.858745][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 49.868291][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.877966][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 49.887387][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 49.896718][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 49.906081][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 49.915632][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 49.925348][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 49.934475][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.944333][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 49.953623][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 49.962883][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 49.972256][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.981871][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 49.991246][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 50.000941][ T8] device bridge_slave_1 left promiscuous mode [ 50.007283][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.010470][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 50.023674][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 50.023819][ T8] device bridge_slave_0 left promiscuous mode [ 50.033185][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 50.039626][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.048552][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 50.064765][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.074555][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 50.074679][ T8] device veth1_macvtap left promiscuous mode [ 50.084059][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 50.090140][ T8] device veth0_vlan left promiscuous mode [ 50.099199][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 50.114283][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.124509][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 50.133972][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 50.143282][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 50.152671][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 50.162133][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 50.171657][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 50.180846][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.190455][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 50.199842][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 50.209244][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 50.218604][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.228915][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 50.238274][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 50.247929][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 50.257506][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 50.267398][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 50.277102][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 50.286976][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.296647][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 50.306605][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 50.316518][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 50.326152][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.335679][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 50.344857][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 50.354199][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 50.363348][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 50.372912][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 50.382446][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 50.391945][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.401670][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 50.411238][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 50.420990][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 45 @ nid 36 [ 50.430529][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 50.439803][ T471] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 50.450466][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 50.459857][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.469323][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 50.479049][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 50.488846][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 50.498539][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 50.507862][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.517821][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 50.527086][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 50.536616][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 50.545805][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 50.554980][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 50.564612][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 50.573767][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 50.583457][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 50.592620][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 50.601906][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.611290][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 50.620585][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 50.629814][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 50.639043][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.648568][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 50.659424][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 50.668756][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 50.677835][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 50.687090][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 50.696371][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 50.706164][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.715864][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 50.725446][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 50.734820][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 50.743977][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 50.753508][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 50.762765][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 50.772009][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 50.781225][ T471] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.791170][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 50.800789][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 50.810199][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 50.819283][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 50.828601][ T471] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 50.838757][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 50.847835][ T471] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 50.857661][ T471] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 50.866752][ T471] attempt to access beyond end of device [ 50.866752][ T471] loop2: rw=524288, want=720, limit=16 [ 50.878875][ T471] attempt to access beyond end of device [ 50.878875][ T471] loop2: rw=524288, want=525144, limit=16 [ 50.890741][ T471] attempt to access beyond end of device [ 50.890741][ T471] loop2: rw=524288, want=72, limit=16 [ 50.902283][ T471] attempt to access beyond end of device [ 50.902283][ T471] loop2: rw=524288, want=1183600, limit=16 [ 50.913679][ T471] attempt to access beyond end of device [ 50.913679][ T471] loop2: rw=524288, want=1048976, limit=16 [ 50.925859][ T471] attempt to access beyond end of device [ 50.925859][ T471] loop2: rw=524288, want=672, limit=16 [ 50.937147][ T471] attempt to access beyond end of device [ 50.937147][ T471] loop2: rw=524288, want=3670472, limit=16 [ 50.948885][ T471] attempt to access beyond end of device [ 50.948885][ T471] loop2: rw=524288, want=790384, limit=16 [ 50.960334][ T471] attempt to access beyond end of device [ 50.960334][ T471] loop2: rw=524288, want=14425508768, limit=16 [ 50.972378][ T471] BUG: scheduling while atomic: syz.2.16/471/0x00000002 [ 50.972625][ T49] erofs: (device loop2): z_erofs_lz4_decompress_mem: failed to decompress -18 in[3072, 1024] out[3984] [ 50.979419][ T471] Modules linked in: [ 50.995042][ T471] Preemption disabled at: [ 50.995054][ T471] [] z_erofs_reload_indexes+0x1d0/0x410 [ 51.006700][ T471] CPU: 0 PID: 471 Comm: syz.2.16 Not tainted syzkaller #0 [ 51.014137][ T471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 51.014148][ T471] Call Trace: [ 51.014155][ T471] [ 51.014162][ T471] __dump_stack+0x21/0x30 [ 51.028384][ T471] dump_stack_lvl+0xee/0x150 [ 51.035694][ T471] ? show_regs_print_info+0x20/0x20 [ 51.045578][ T471] ? z_erofs_reload_indexes+0x1d0/0x410 [ 51.051145][ T471] dump_stack+0x15/0x20 [ 51.051163][ T471] __schedule_bug+0x174/0x230 [ 51.060058][ T471] ? ttwu_queue_wakelist+0x490/0x490 [ 51.065868][ T471] __schedule+0xc2f/0x14c0 [ 51.065891][ T471] ? release_firmware_map_entry+0x190/0x190 [ 51.065910][ T471] ? task_work_add+0x1b2/0x1e0 [ 51.076414][ T471] schedule+0x11e/0x1e0 [ 51.076435][ T471] exit_to_user_mode_loop+0x50/0xe0 [ 51.085767][ T471] exit_to_user_mode_prepare+0x5a/0xa0 [ 51.096726][ T471] syscall_exit_to_user_mode+0x1a/0x30 [ 51.096757][ T471] do_syscall_64+0x58/0xa0 [ 51.106713][ T471] ? clear_bhb_loop+0x50/0xa0 [ 51.111593][ T471] ? clear_bhb_loop+0x50/0xa0 [ 51.111619][ T471] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 51.111637][ T471] RIP: 0033:0x7f5805c35969 [ 51.111653][ T471] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 51.111667][ T471] RSP: 002b:00007f58056a6038 EFLAGS: 00000246 [ 51.122242][ T471] ORIG_RAX: 00000000000000dd [ 51.122252][ T471] RAX: 0000000000000000 RBX: 00007f5805e5cfa0 RCX: 00007f5805c35969 [ 51.122264][ T471] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 51.146636][ T471] RBP: 00007f5805cb7ab1 R08: 0000000000000000 R09: 0000000000000000 [ 51.146649][ T471] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 51.146660][ T471] R13: 0000000000000000 R14: 00007f5805e5cfa0 R15: 00007ffdb45ba248 [ 51.157728][ T471] [ 51.286303][ T473] loop2: detected capacity change from 0 to 16 [ 51.363451][ T473] erofs: (device loop2): mounted with root inode @ nid 36. [ 51.372591][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.382497][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 51.392227][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.401888][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 51.411424][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 51.420666][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 51.430282][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 51.439788][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 51.449662][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 51.459268][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.469320][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 51.479000][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 51.488650][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 51.498573][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.508224][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 51.517473][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 51.526962][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 51.536370][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 51.545632][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 51.554804][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 51.564521][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.574391][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 51.584190][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 51.593602][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 51.602942][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.612635][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 51.622058][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 51.631575][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 51.641122][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 51.650924][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 51.660848][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 51.670437][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.679899][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 51.689107][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 51.698384][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 51.707596][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.717763][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 51.727350][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 51.736695][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 51.745928][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 51.755096][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 51.764530][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 51.773955][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.783538][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 51.792723][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 51.801966][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 51.811184][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.820716][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 51.830056][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 51.839497][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 51.849005][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 51.858305][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 51.867774][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 51.877384][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.887157][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 51.897283][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 51.906826][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 51.916161][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.926117][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 51.935433][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 51.944919][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 51.954169][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 51.963539][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 51.973085][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 51.983176][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.993218][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 52.002423][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 52.011689][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 52.021161][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.030765][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 52.039974][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 52.049210][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 52.058785][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 52.067941][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 52.077164][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 52.086741][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.096516][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 52.106074][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 52.115593][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 52.125019][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.134533][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 52.143799][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 52.152935][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 52.162485][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 52.171931][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 52.181406][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 52.190632][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.200042][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 52.209305][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 52.218549][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 52.227730][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.237354][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 52.247031][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 52.256400][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 52.265479][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 52.274654][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 52.283880][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 52.293175][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.302820][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 52.311997][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 52.321349][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 52.330377][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.339879][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 52.349121][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 52.358314][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 52.367863][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 52.377541][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 52.386697][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 52.395934][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.405665][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 52.415143][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 52.424572][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 52.433642][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.442992][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 52.452418][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 52.461636][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 52.470722][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 52.479920][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 52.489344][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 52.498682][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.508298][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 52.517641][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 52.526779][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 45 @ nid 36 [ 52.535936][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 52.545153][ T473] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 52.554950][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 52.564169][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.573492][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 52.582570][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 52.591632][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 52.600869][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 52.609980][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.619850][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 52.629029][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 52.638523][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 52.647841][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 52.657357][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 52.666602][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 52.675782][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 52.684938][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 52.694214][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 52.703312][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.713247][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 52.722579][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 52.731941][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 52.741332][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.750676][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 52.759705][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 52.768831][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 52.778007][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 52.787579][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 52.796618][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 52.806279][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.815931][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 52.825092][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 52.834268][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 52.843449][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 52.852619][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 52.861677][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 52.871104][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 52.880231][ T473] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.889931][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 52.899079][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 52.908060][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 52.917658][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 52.926991][ T473] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 52.937011][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 52.946490][ T473] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 52.956529][ T473] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 52.965854][ T473] attempt to access beyond end of device [ 52.965854][ T473] loop2: rw=524288, want=720, limit=16 [ 52.977199][ T473] BUG: scheduling while atomic: syz.2.17/473/0x00000002 [ 52.977335][ T48] erofs: (device loop2): z_erofs_lz4_decompress_mem: failed to decompress -18 in[3072, 1024] out[3984] [ 52.984540][ T473] Modules linked in: [ 52.984551][ T473] Preemption disabled at: [ 52.984557][ T473] [] z_erofs_reload_indexes+0x1d0/0x410 [ 52.999934][ T473] CPU: 1 PID: 473 Comm: syz.2.17 Tainted: G W syzkaller #0 [ 53.011528][ T473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 53.011539][ T473] Call Trace: [ 53.011546][ T473] [ 53.011553][ T473] __dump_stack+0x21/0x30 [ 53.030204][ T473] dump_stack_lvl+0xee/0x150 [ 53.030237][ T473] ? show_regs_print_info+0x20/0x20 [ 53.036730][ T473] ? z_erofs_reload_indexes+0x1d0/0x410 [ 53.045855][ T473] dump_stack+0x15/0x20 [ 53.057093][ T473] __schedule_bug+0x174/0x230 [ 53.066767][ T473] ? ttwu_queue_wakelist+0x490/0x490 [ 53.072076][ T473] __schedule+0xc2f/0x14c0 [ 53.072104][ T473] ? release_firmware_map_entry+0x190/0x190 [ 53.072125][ T473] ? task_work_add+0x1b2/0x1e0 [ 53.082880][ T473] schedule+0x11e/0x1e0 [ 53.082901][ T473] exit_to_user_mode_loop+0x50/0xe0 [ 53.092313][ T473] exit_to_user_mode_prepare+0x5a/0xa0 [ 53.092333][ T473] syscall_exit_to_user_mode+0x1a/0x30 [ 53.092351][ T473] do_syscall_64+0x58/0xa0 [ 53.103175][ T473] ? clear_bhb_loop+0x50/0xa0 [ 53.103196][ T473] ? clear_bhb_loop+0x50/0xa0 [ 53.113183][ T473] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.122735][ T473] RIP: 0033:0x7f5805c35969 [ 53.122753][ T473] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 53.134062][ T473] RSP: 002b:00007f58056a6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 53.134085][ T473] RAX: 0000000000000000 RBX: 00007f5805e5cfa0 RCX: 00007f5805c35969 [ 53.163458][ T473] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 53.163475][ T473] RBP: 00007f5805cb7ab1 R08: 0000000000000000 R09: 0000000000000000 [ 53.163487][ T473] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 53.179771][ T473] R13: 0000000000000000 R14: 00007f5805e5cfa0 R15: 00007ffdb45ba248 [ 53.196388][ T473] [ 53.267604][ T475] loop2: detected capacity change from 0 to 16 [ 53.400946][ T475] erofs: (device loop2): mounted with root inode @ nid 36. [ 53.409915][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.419780][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 53.429441][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.438772][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 53.448341][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 53.457592][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 53.467064][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 53.476670][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 53.485901][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 53.495795][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.505441][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 53.514790][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 53.524143][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 53.533905][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.543934][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 53.553348][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 53.562863][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 53.572015][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 53.581394][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 53.591118][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 53.600347][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.609672][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 53.619088][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 53.628329][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 53.637511][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.647113][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 53.656616][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 53.666067][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 53.675755][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 53.684981][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 53.694342][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 53.704033][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.713727][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 53.722955][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 53.732109][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 53.741354][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.750855][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 53.760049][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 53.769317][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 53.778663][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 53.788761][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 53.798145][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 53.807560][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.817053][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 53.826652][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 53.836180][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 53.845621][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.855171][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 53.864883][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 53.874250][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 53.883612][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 53.893348][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 53.902819][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 53.912443][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.922135][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 53.931756][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 53.941668][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 53.951150][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.960609][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 53.969759][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 53.979018][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 53.988154][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 53.997379][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 54.006431][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 54.016342][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.026299][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 54.035890][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 54.045258][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 54.054838][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.064792][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 54.074115][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 54.083564][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 54.092934][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 54.102195][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 54.111268][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 54.120732][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.130200][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 54.139641][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 54.149404][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 54.158793][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.168890][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 54.178912][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 54.187974][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 54.197052][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 54.206288][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 54.216064][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 54.225338][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.234678][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 54.243862][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 54.252988][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 54.262641][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.272322][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 54.281617][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 54.290856][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 54.300181][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 54.309402][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 54.319182][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 54.328723][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.338210][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 54.347301][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 54.357304][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 54.367288][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.377210][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 54.387391][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 54.396961][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 54.407184][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 54.417923][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 54.427455][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 54.436641][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.446867][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 54.456595][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 54.465683][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 54.475093][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.484916][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 54.494780][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 54.504954][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 54.514151][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 54.523445][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 54.532695][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 54.541863][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.551371][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 54.560846][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 54.570497][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 45 @ nid 36 [ 54.579602][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 54.588803][ T475] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 54.598686][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 54.607869][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.617257][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 54.626955][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 54.636169][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 54.645324][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 54.654588][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.664199][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 54.673710][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 54.683469][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 54.692766][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 54.701958][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 54.711447][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 54.721063][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 54.730088][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 54.739229][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 54.748484][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.757879][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 54.766940][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 54.776181][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 54.785434][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.795017][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 54.804263][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 54.813563][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 54.823024][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 54.832257][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 54.841479][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 54.850786][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.860318][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 54.869866][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 54.879055][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 54.888551][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 54.897978][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 54.907140][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 54.916197][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 54.925259][ T475] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.935144][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 54.944562][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 54.953774][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 54.963018][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 54.972258][ T475] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 54.982306][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 55.004145][ T475] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 55.014024][ T475] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 55.023533][ T475] BUG: scheduling while atomic: syz.2.18/475/0x00000002 [ 55.023651][ T49] erofs: (device loop2): z_erofs_lz4_decompress_mem: failed to decompress -18 in[3072, 1024] out[3984] [ 55.030952][ T475] Modules linked in: [ 55.030962][ T475] Preemption disabled at: [ 55.030967][ T475] [] z_erofs_reload_indexes+0x1d0/0x410 [ 55.046466][ T475] CPU: 0 PID: 475 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 55.058502][ T475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 55.058520][ T475] Call Trace: [ 55.058527][ T475] [ 55.077495][ T475] __dump_stack+0x21/0x30 [ 55.077523][ T475] dump_stack_lvl+0xee/0x150 [ 55.083927][ T475] ? show_regs_print_info+0x20/0x20 [ 55.092833][ T475] ? z_erofs_reload_indexes+0x1d0/0x410 [ 55.092854][ T475] dump_stack+0x15/0x20 [ 55.092872][ T475] __schedule_bug+0x174/0x230 [ 55.103683][ T475] ? ttwu_queue_wakelist+0x490/0x490 [ 55.103704][ T475] __schedule+0xc2f/0x14c0 [ 55.112602][ T475] ? release_firmware_map_entry+0x190/0x190 [ 55.122420][ T475] ? task_work_add+0x1b2/0x1e0 [ 55.122459][ T475] schedule+0x11e/0x1e0 [ 55.133180][ T475] exit_to_user_mode_loop+0x50/0xe0 [ 55.133211][ T475] exit_to_user_mode_prepare+0x5a/0xa0 [ 55.142563][ T475] syscall_exit_to_user_mode+0x1a/0x30 [ 55.142589][ T475] do_syscall_64+0x58/0xa0 [ 55.142605][ T475] ? clear_bhb_loop+0x50/0xa0 [ 55.142625][ T475] ? clear_bhb_loop+0x50/0xa0 [ 55.153743][ T475] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 55.153765][ T475] RIP: 0033:0x7f5805c35969 [ 55.163130][ T475] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 55.163147][ T475] RSP: 002b:00007f58056a6038 EFLAGS: 00000246 [ 55.173965][ T475] ORIG_RAX: 00000000000000dd [ 55.173975][ T475] RAX: 0000000000000000 RBX: 00007f5805e5cfa0 RCX: 00007f5805c35969 [ 55.198943][ T475] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 55.198963][ T475] RBP: 00007f5805cb7ab1 R08: 0000000000000000 R09: 0000000000000000 [ 55.198976][ T475] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 55.198987][ T475] R13: 0000000000000000 R14: 00007f5805e5cfa0 R15: 00007ffdb45ba248 [ 55.210233][ T475] 2025/08/29 06:05:23 executed programs: 5 [ 55.306674][ T477] loop2: detected capacity change from 0 to 16 [ 55.364316][ T477] erofs: (device loop2): mounted with root inode @ nid 36. [ 55.373442][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.383221][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 55.393112][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.402659][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 55.412538][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 55.422091][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 55.431406][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 55.440892][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 55.450233][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 55.460040][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.469659][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 55.479472][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 55.489326][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 55.499364][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.509824][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 55.518990][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 55.528541][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 55.538573][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 55.547834][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 55.557444][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 55.567047][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.576712][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 55.586025][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 55.595416][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 55.604670][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.614331][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 55.624336][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 55.634076][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 55.643623][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 55.653130][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 55.662546][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 55.672107][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.681596][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 55.691349][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 55.701130][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 55.710333][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.719986][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 55.729584][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 55.738721][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 55.748137][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 55.757468][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 55.766844][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 55.776104][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.785718][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 55.795263][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 55.804694][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 55.814072][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.823545][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 55.833024][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 55.842445][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 55.851772][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 55.861356][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 55.870500][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 55.879959][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.889251][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 55.898485][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 55.907923][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 55.917156][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.927137][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 55.936787][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 55.945934][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 55.955166][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 55.964700][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 55.973889][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 55.983280][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.992865][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 56.002019][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 56.011167][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 56.020546][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.029866][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 56.039018][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 56.048174][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 56.057461][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 56.066758][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 56.076236][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 56.085765][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.095234][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 56.104834][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 56.114070][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 56.123531][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.133372][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 56.142738][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 56.152101][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 56.161271][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 56.170754][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 56.180079][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 56.189320][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.198857][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 56.207936][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 56.217189][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 56.226346][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.235661][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 56.244886][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 56.254237][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 56.263275][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 56.272538][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 56.281953][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 56.291122][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.300978][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 56.310130][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 56.319316][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 56.328401][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.337853][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 56.347016][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 56.356338][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 56.365615][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 56.374936][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 56.384282][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 56.393461][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.402772][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 56.412109][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 56.421574][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 56.430843][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.440378][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 56.449664][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 56.459244][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 56.468471][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 56.477801][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 56.486986][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 56.496531][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.506122][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 56.515702][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 56.524769][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 45 @ nid 36 [ 56.533902][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 56.543229][ T477] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 56.553048][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 56.562127][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.571657][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 56.581002][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 56.590116][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 56.599539][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 56.608602][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.618109][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 56.627256][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 56.636558][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 56.645889][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 56.655173][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 56.664581][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 56.674015][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 56.683484][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 56.692715][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 56.702501][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.712326][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 56.721614][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 56.730944][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 56.740196][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.749545][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 56.758695][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 56.767861][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 56.777021][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 56.786393][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 56.795910][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 56.805583][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.815742][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 56.825116][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 56.834389][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 56.843786][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 56.852954][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 56.861926][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 56.871140][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 56.880121][ T477] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.890304][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 56.899906][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 56.909185][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 56.918782][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 56.928261][ T477] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 56.938536][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 56.948028][ T477] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 56.957852][ T477] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 56.967058][ T477] handle_bad_sector: 17 callbacks suppressed [ 56.967074][ T477] attempt to access beyond end of device [ 56.967074][ T477] loop2: rw=524288, want=720, limit=16 [ 56.984957][ T477] attempt to access beyond end of device [ 56.984957][ T477] loop2: rw=524288, want=525144, limit=16 [ 56.996581][ T477] attempt to access beyond end of device [ 56.996581][ T477] loop2: rw=524288, want=72, limit=16 [ 57.007751][ T477] attempt to access beyond end of device [ 57.007751][ T477] loop2: rw=524288, want=1183600, limit=16 [ 57.019466][ T477] attempt to access beyond end of device [ 57.019466][ T477] loop2: rw=524288, want=1048976, limit=16 [ 57.030950][ T477] attempt to access beyond end of device [ 57.030950][ T477] loop2: rw=524288, want=672, limit=16 [ 57.042526][ T477] attempt to access beyond end of device [ 57.042526][ T477] loop2: rw=524288, want=3670472, limit=16 [ 57.054419][ T477] attempt to access beyond end of device [ 57.054419][ T477] loop2: rw=524288, want=790384, limit=16 [ 57.066303][ T477] attempt to access beyond end of device [ 57.066303][ T477] loop2: rw=524288, want=14425508768, limit=16 [ 57.078426][ T477] BUG: scheduling while atomic: syz.2.19/477/0x00000002 [ 57.078544][ T49] erofs: (device loop2): z_erofs_lz4_decompress_mem: failed to decompress -18 in[3072, 1024] out[3984] [ 57.085586][ T477] Modules linked in: [ 57.101235][ T477] Preemption disabled at: [ 57.101245][ T477] [] z_erofs_reload_indexes+0x1d0/0x410 [ 57.113493][ T477] CPU: 0 PID: 477 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 57.122214][ T477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 57.122229][ T477] Call Trace: [ 57.122235][ T477] [ 57.122242][ T477] __dump_stack+0x21/0x30 [ 57.122266][ T477] dump_stack_lvl+0xee/0x150 [ 57.122283][ T477] ? show_regs_print_info+0x20/0x20 [ 57.135708][ T477] ? z_erofs_reload_indexes+0x1d0/0x410 [ 57.142996][ T477] dump_stack+0x15/0x20 [ 57.143017][ T477] __schedule_bug+0x174/0x230 [ 57.153343][ T477] ? ttwu_queue_wakelist+0x490/0x490 [ 57.153363][ T477] __schedule+0xc2f/0x14c0 [ 57.163523][ T477] ? release_firmware_map_entry+0x190/0x190 [ 57.163561][ T477] ? task_work_add+0x1b2/0x1e0 [ 57.173526][ T477] schedule+0x11e/0x1e0 [ 57.173548][ T477] exit_to_user_mode_loop+0x50/0xe0 [ 57.173565][ T477] exit_to_user_mode_prepare+0x5a/0xa0 [ 57.184425][ T477] syscall_exit_to_user_mode+0x1a/0x30 [ 57.184463][ T477] do_syscall_64+0x58/0xa0 [ 57.193484][ T477] ? clear_bhb_loop+0x50/0xa0 [ 57.193515][ T477] ? clear_bhb_loop+0x50/0xa0 [ 57.193534][ T477] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 57.204362][ T477] RIP: 0033:0x7f5805c35969 [ 57.204382][ T477] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 57.214461][ T477] RSP: 002b:00007f58056a6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 57.214483][ T477] RAX: 0000000000000000 RBX: 00007f5805e5cfa0 RCX: 00007f5805c35969 [ 57.214496][ T477] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 57.224327][ T477] RBP: 00007f5805cb7ab1 R08: 0000000000000000 R09: 0000000000000000 [ 57.224340][ T477] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 57.224351][ T477] R13: 0000000000000000 R14: 00007f5805e5cfa0 R15: 00007ffdb45ba248 [ 57.224368][ T477] [ 57.365575][ T479] loop2: detected capacity change from 0 to 16 [ 57.427771][ T479] erofs: (device loop2): mounted with root inode @ nid 36. [ 57.436539][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.446682][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 57.456226][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.465781][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 57.475106][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 57.484525][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 57.494029][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 57.503292][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 57.512783][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 57.522133][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.531438][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 57.540600][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 57.549707][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 57.558824][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.568124][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 57.577265][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 57.586614][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 57.595985][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 57.605829][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 57.615158][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 57.624389][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.633906][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 57.643050][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 57.652372][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 57.661600][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.671011][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 57.680455][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 57.689658][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 57.698990][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 57.708230][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 57.717548][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 57.726872][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.736261][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 57.745478][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 57.755040][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 57.764449][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.773754][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 57.783243][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 57.792368][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 57.801607][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 57.810847][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 57.820230][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 57.829546][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.839140][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 57.848396][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 57.857630][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 57.866861][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.876450][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 57.885915][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 57.895317][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 57.904634][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 57.913954][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 57.923335][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 57.932645][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.941971][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 57.951362][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 57.960587][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 57.969996][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.979572][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 57.988641][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 57.998033][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 58.007732][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 58.016821][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 58.026131][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 58.035291][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.044703][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 58.054283][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 58.063634][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 58.072687][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.082002][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 58.091155][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 58.100373][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 58.109628][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 58.118765][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 58.128002][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 58.137243][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.146564][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 58.156025][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 58.165743][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 58.175060][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.184954][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 58.194578][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 58.204205][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 58.213355][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 58.222506][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 58.231866][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 58.241321][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.250983][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 58.260476][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 58.269789][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 58.279061][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.288377][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 58.297610][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 58.307021][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 58.316188][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 58.325665][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 58.335012][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 58.344300][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.353783][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 58.363463][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 58.372833][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 58.382682][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.392118][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 58.401959][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 58.411142][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 58.420459][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 58.429693][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 58.438951][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 58.448390][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.457745][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 58.467770][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 58.477032][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 58.486640][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.496741][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 58.505999][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 58.515166][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 58.524701][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 58.534083][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 58.543399][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 58.552960][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.562559][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 58.571685][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 58.581064][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 45 @ nid 36 [ 58.590283][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 58.599687][ T479] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 58.609508][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 58.619011][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.628643][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 58.637762][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 58.647542][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 58.656865][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 58.666580][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.676495][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 58.685667][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 58.694747][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 58.704413][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 58.713883][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 58.723146][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 58.732229][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 58.741374][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 58.750785][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 58.760361][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.770326][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 58.779735][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 58.788867][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 58.798009][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.807929][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 58.817596][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 58.826991][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 58.836151][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 58.845462][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 58.854680][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 58.864446][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.874200][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 58.883453][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 58.893332][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 58.902857][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 58.912422][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 58.921861][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 58.931139][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 58.940079][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 58.949697][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 58.958841][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 58.968218][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 58.977526][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 58.987171][ T479] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 58.996946][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 59.006295][ T479] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 59.016781][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 59.026451][ T479] attempt to access beyond end of device [ 59.026451][ T479] loop2: rw=524288, want=720, limit=16 [ 59.038289][ T479] BUG: scheduling while atomic: syz.2.20/479/0x00000002 [ 59.038402][ T48] erofs: (device loop2): z_erofs_lz4_decompress_mem: failed to decompress -18 in[3072, 1024] out[3984] [ 59.045320][ T479] Modules linked in: [ 59.060721][ T479] Preemption disabled at: [ 59.060733][ T479] [] z_erofs_reload_indexes+0x1d0/0x410 [ 59.072745][ T479] CPU: 1 PID: 479 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 59.081254][ T479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 59.081267][ T479] Call Trace: [ 59.081274][ T479] [ 59.081281][ T479] __dump_stack+0x21/0x30 [ 59.094999][ T479] dump_stack_lvl+0xee/0x150 [ 59.102425][ T479] ? show_regs_print_info+0x20/0x20 [ 59.102446][ T479] ? z_erofs_reload_indexes+0x1d0/0x410 [ 59.112925][ T479] dump_stack+0x15/0x20 [ 59.112958][ T479] __schedule_bug+0x174/0x230 [ 59.123023][ T479] ? ttwu_queue_wakelist+0x490/0x490 [ 59.123051][ T479] __schedule+0xc2f/0x14c0 [ 59.132996][ T479] ? release_firmware_map_entry+0x190/0x190 [ 59.133019][ T479] ? task_work_add+0x1b2/0x1e0 [ 59.133034][ T479] schedule+0x11e/0x1e0 [ 59.133050][ T479] exit_to_user_mode_loop+0x50/0xe0 [ 59.143889][ T479] exit_to_user_mode_prepare+0x5a/0xa0 [ 59.143918][ T479] syscall_exit_to_user_mode+0x1a/0x30 [ 59.153221][ T479] do_syscall_64+0x58/0xa0 [ 59.164574][ T479] ? clear_bhb_loop+0x50/0xa0 [ 59.174713][ T479] ? clear_bhb_loop+0x50/0xa0 [ 59.174735][ T479] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 59.184393][ T479] RIP: 0033:0x7f5805c35969 [ 59.184417][ T479] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 59.184433][ T479] RSP: 002b:00007f58056a6038 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 59.184454][ T479] RAX: 0000000000000000 RBX: 00007f5805e5cfa0 RCX: 00007f5805c35969 [ 59.195018][ T479] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 59.195031][ T479] RBP: 00007f5805cb7ab1 R08: 0000000000000000 R09: 0000000000000000 [ 59.195043][ T479] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 59.224361][ T479] R13: 0000000000000000 R14: 00007f5805e5cfa0 R15: 00007ffdb45ba248 [ 59.224383][ T479] [ 59.365472][ T481] loop2: detected capacity change from 0 to 16 [ 59.372852][ T481] erofs: (device loop2): mounted with root inode @ nid 36. [ 59.382046][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.391899][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 59.402246][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.412317][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 59.421968][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 59.431453][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 59.440727][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 59.449838][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 59.459098][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 59.468668][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.478106][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 59.488217][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 59.497814][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 59.507620][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.517293][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 59.526517][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 59.536054][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 59.545229][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 59.554529][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 59.563758][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 59.572907][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.582326][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 59.591642][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 59.601205][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 59.610318][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.619728][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 59.628864][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 59.637981][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 59.647197][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 59.656321][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 59.665452][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 59.674939][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.685023][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 59.694333][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 59.703892][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 59.713517][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.723009][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 59.732249][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 59.741665][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 59.751360][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 59.761072][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 59.770187][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 59.779420][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.788855][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 59.799073][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 59.808607][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 59.818116][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.827528][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 59.836946][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 59.846613][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 59.856183][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 59.865606][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 59.875321][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 59.884733][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.894433][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 59.903771][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 59.913534][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 59.923163][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 59.934651][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 59.944070][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 59.953653][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 59.963279][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 59.972358][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 59.981805][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 59.991581][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.001009][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 60.010492][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 60.019577][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 60.028660][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.039039][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 60.048630][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 60.058070][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 60.067298][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 60.076363][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 60.085552][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 60.094943][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.104363][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 60.113547][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 60.123049][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 60.132571][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.142353][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 60.151665][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 60.161170][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 60.170504][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 60.179720][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 60.188843][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 60.198321][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.207832][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 60.216905][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 60.226432][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 60.235983][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.245517][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 60.254946][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 60.264332][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 60.273663][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 60.283228][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 60.292880][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 60.302735][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.312518][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 60.321740][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 60.331076][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 60.340362][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.349954][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 60.359111][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 60.368290][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 60.377803][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 60.387067][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 60.396738][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 60.406139][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.415902][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 60.425406][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 60.435823][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 60.445001][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.454513][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 60.464209][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 60.473588][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 60.482921][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 60.492564][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 60.502289][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 60.511578][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.521433][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 60.530857][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 60.540452][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 45 @ nid 36 [ 60.549735][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 60.559079][ T481] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 60.569238][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 60.578346][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.588121][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 60.597750][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 60.606906][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 60.616270][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 60.625327][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.634711][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 60.643863][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 60.652982][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 60.662200][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 60.671352][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 60.680549][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 60.689741][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 60.698868][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 60.707958][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 60.717247][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.727176][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 60.736472][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 60.745530][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 60.754744][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.764149][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 60.773694][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 60.783335][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 60.793170][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 60.802404][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 60.811863][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 60.821368][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.831410][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 60.840760][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 60.849887][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 60.859111][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 60.868740][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 60.877869][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 60.887364][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 60.896927][ T481] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 60.906774][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 60.915951][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 60.925317][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 60.934891][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 60.944125][ T481] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 60.954050][ T481] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36