Warning: Permanently added '10.128.1.15' (ED25519) to the list of known hosts. 2026/04/13 13:23:57 parsed 1 programs Setting up swapspace version 1, size = 127995904 bytes [ 44.491127][ T24] kauditd_printk_skb: 31 callbacks suppressed [ 44.491137][ T24] audit: type=1400 audit(1776086637.760:105): avc: denied { unlink } for pid=410 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" [ 44.564144][ T24] audit: type=1400 audit(1776086637.830:106): avc: denied { write } for pid=412 comm="mkswap" path="pipe:[14925]" dev="pipefs" ino=14925 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 44.587495][ T410] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 45.170195][ T24] audit: type=1400 audit(1776086638.440:107): avc: denied { create } for pid=427 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 45.374716][ T437] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.382047][ T437] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.389511][ T437] device bridge_slave_0 entered promiscuous mode [ 45.396198][ T437] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.403370][ T437] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.411366][ T437] device bridge_slave_1 entered promiscuous mode [ 45.442723][ T437] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.450020][ T437] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.457941][ T437] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.464974][ T437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.480224][ T112] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.487546][ T112] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.494923][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.503177][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.512588][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.521066][ T112] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.528632][ T112] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.537446][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.546152][ T112] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.553672][ T112] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.564792][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.574880][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.587594][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.598110][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.606050][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.613611][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.622044][ T437] device veth0_vlan entered promiscuous mode [ 45.632849][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.642566][ T437] device veth1_macvtap entered promiscuous mode [ 45.651720][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.661471][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.729426][ T24] audit: type=1401 audit(1776086639.000:108): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" 2026/04/13 13:23:59 executed programs: 0 [ 46.138915][ T474] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.146539][ T474] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.154056][ T474] device bridge_slave_0 entered promiscuous mode [ 46.163675][ T474] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.170789][ T474] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.178191][ T474] device bridge_slave_1 entered promiscuous mode [ 46.210806][ T474] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.217907][ T474] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.225607][ T474] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.232740][ T474] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.253425][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.261096][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.268598][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.278769][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.287042][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.294259][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.303682][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.312284][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.319962][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.332777][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.342173][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.354504][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.365084][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.373146][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.380774][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.388994][ T474] device veth0_vlan entered promiscuous mode [ 46.398671][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.406788][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.415724][ T474] device veth1_macvtap entered promiscuous mode [ 46.424597][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.432393][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.440873][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.450085][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.458553][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.559716][ T479] erofs: (device loop2): mounted with root inode @ nid 36. [ 46.567209][ T24] audit: type=1400 audit(1776086639.840:109): avc: denied { mount } for pid=478 comm="syz.2.17" name="/" dev="loop2" ino=36 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 46.569326][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 46.598827][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.608149][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 46.617395][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 46.626551][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 46.635960][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 46.645128][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 46.654481][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 46.663656][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.673040][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 46.682283][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 46.691590][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 46.701151][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.711493][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 46.721165][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 46.730372][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 46.739555][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 46.748721][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 46.757957][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 46.767252][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.776942][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 46.786338][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 46.795788][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 46.805156][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.814586][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 46.824935][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 46.834320][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 46.843496][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 46.853005][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 46.862210][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 46.871807][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.881279][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 46.890453][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 46.899990][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 46.909404][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.918957][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 46.929106][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 46.938887][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 46.948150][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 46.957886][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 46.967491][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 46.978773][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 46.988507][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 46.998543][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 47.008670][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 47.018318][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.027657][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 47.036828][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 47.046350][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 47.055627][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 47.064800][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 47.074606][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 47.083980][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.093960][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 47.103170][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 47.113215][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 47.122296][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.131946][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 47.141019][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 47.150283][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 47.159548][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 47.168607][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 47.178461][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 47.187572][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.196855][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 47.205907][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 47.214955][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 47.224182][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.233780][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 47.243072][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 47.252210][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 47.261718][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 47.271253][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 47.280886][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 47.290357][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.299815][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 47.309082][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 47.318233][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 47.327344][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.337496][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 47.347298][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 47.357627][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 47.367094][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 47.377645][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 47.386683][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 47.396300][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.405847][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 47.415195][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 47.425061][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 47.434279][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 47.443436][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 47.452489][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 47.462148][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 47.471179][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 47.480224][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 47.489424][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.499077][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 47.508294][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 47.517344][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 47.526358][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.535887][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 47.544935][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 47.554195][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 47.563569][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 47.573034][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 47.582556][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 47.591969][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.601292][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 47.610357][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 47.619607][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 47.628746][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.638214][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 47.647605][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 47.656707][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 47.665797][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 47.674879][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 47.685240][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 47.694294][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.703738][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 47.713694][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 47.722928][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 47.732245][ T479] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 47.742197][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 47.751412][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.760818][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 47.769924][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 47.779574][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 47.788827][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 47.798095][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 47.807149][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 47.816168][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 47.825370][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 47.835445][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 47.844818][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 47.854088][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 47.863150][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 47.872212][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 47.881291][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.890745][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 47.900010][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 47.909256][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 47.918330][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.927812][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 47.937214][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 47.946322][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 47.955752][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 47.965028][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 47.974178][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 47.984467][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 47.994516][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 48.003588][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 48.012744][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 48.021803][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 48.030889][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 48.039976][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 48.048935][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 48.057951][ T479] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.067388][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 48.077277][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 48.086289][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 48.095235][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 48.104233][ T479] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 48.113970][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 48.122928][ T479] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 48.132568][ T479] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 48.142171][ T479] attempt to access beyond end of device [ 48.142171][ T479] loop2: rw=524288, want=720, limit=16 [ 48.153228][ T479] attempt to access beyond end of device [ 48.153228][ T479] loop2: rw=524288, want=525144, limit=16 [ 48.164720][ T479] attempt to access beyond end of device [ 48.164720][ T479] loop2: rw=524288, want=72, limit=16 [ 48.176245][ T479] attempt to access beyond end of device [ 48.176245][ T479] loop2: rw=524288, want=1183600, limit=16 [ 48.187960][ T479] attempt to access beyond end of device [ 48.187960][ T479] loop2: rw=524288, want=296, limit=16 [ 48.199374][ T479] attempt to access beyond end of device [ 48.199374][ T479] loop2: rw=524288, want=1048976, limit=16 [ 48.210707][ T479] attempt to access beyond end of device [ 48.210707][ T479] loop2: rw=524288, want=672, limit=16 [ 48.221915][ T479] attempt to access beyond end of device [ 48.221915][ T479] loop2: rw=524288, want=3670472, limit=16 [ 48.233398][ T479] attempt to access beyond end of device [ 48.233398][ T479] loop2: rw=524288, want=790384, limit=16 [ 48.244800][ T479] BUG: scheduling while atomic: syz.2.17/479/0x00000004 [ 48.251753][ T479] Modules linked in: [ 48.255743][ T479] Preemption disabled at: [ 48.255774][ T479] [] z_erofs_reload_indexes+0x1d0/0x450 [ 48.267558][ T479] CPU: 0 PID: 479 Comm: syz.2.17 Not tainted syzkaller #0 [ 48.274674][ T479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 48.285134][ T479] Call Trace: [ 48.288413][ T479] __dump_stack+0x21/0x24 [ 48.292730][ T479] dump_stack_lvl+0x1a7/0x208 [ 48.297831][ T479] ? z_erofs_reload_indexes+0x1d0/0x450 [ 48.303364][ T479] ? show_regs_print_info+0x18/0x18 [ 48.308546][ T479] ? z_erofs_reload_indexes+0x1d0/0x450 [ 48.314066][ T479] dump_stack+0x15/0x1c [ 48.318197][ T479] __schedule_bug+0x183/0x240 [ 48.322961][ T479] ? __migrate_task+0x190/0x190 [ 48.327783][ T479] __schedule+0xc45/0x1320 [ 48.332180][ T479] ? __sched_text_start+0x8/0x8 [ 48.337295][ T479] ? task_work_add+0x1b2/0x1e0 [ 48.342154][ T479] schedule+0x13c/0x1d0 [ 48.346289][ T479] exit_to_user_mode_loop+0x4b/0xe0 [ 48.351625][ T479] exit_to_user_mode_prepare+0x76/0xa0 [ 48.357073][ T479] syscall_exit_to_user_mode+0x1d/0x40 [ 48.362506][ T479] do_syscall_64+0x3d/0x40 [ 48.366939][ T479] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 48.373018][ T479] RIP: 0033:0x7f4c03ec6eb9 [ 48.377428][ T479] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 48.397447][ T479] RSP: 002b:00007f4c03d2b028 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 48.405863][ T479] RAX: 0000000000000000 RBX: 00007f4c04141fa0 RCX: 00007f4c03ec6eb9 [ 48.413845][ T479] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 48.422055][ T479] RBP: 00007f4c03f34c1f R08: 0000000000000000 R09: 0000000000000000 [ 48.430131][ T479] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 48.438181][ T479] R13: 00007f4c04142038 R14: 00007f4c04141fa0 R15: 00007ffcaf955fd8 [ 48.529577][ T482] erofs: (device loop2): mounted with root inode @ nid 36. [ 48.538979][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 48.548565][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.558258][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 48.567541][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 48.576678][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 48.586009][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 48.595654][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 48.604893][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 48.614039][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.623605][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 48.632796][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 48.642134][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 48.651831][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.661229][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 48.670641][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 48.680070][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 48.689441][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 48.698635][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 48.699396][ T320] device bridge_slave_1 left promiscuous mode [ 48.708169][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 48.708178][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.708184][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 48.708191][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 48.708198][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 48.708204][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.708210][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 48.708218][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 48.714636][ T320] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.723656][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 48.806558][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 48.806750][ T320] device bridge_slave_0 left promiscuous mode [ 48.816823][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 48.823515][ T320] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.833117][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 48.849497][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.859397][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 48.859724][ T320] device veth1_macvtap left promiscuous mode [ 48.868830][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 48.874981][ T320] device veth0_vlan left promiscuous mode [ 48.884300][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 48.899851][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.909723][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 48.919065][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 48.928247][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 48.937848][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 48.947564][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 48.957549][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 48.968219][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 48.977666][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 48.987338][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 48.996717][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 49.005896][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.015549][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 49.025120][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 49.034257][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 49.043400][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 49.053207][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 49.062776][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 49.072568][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.082213][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 49.091477][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 49.100705][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 49.109964][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.119489][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 49.128655][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 49.138001][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 49.147131][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 49.156602][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 49.165805][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 49.174853][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.184367][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 49.193441][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 49.202548][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 49.211736][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.221198][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 49.230376][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 49.239872][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 49.249042][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 49.258741][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 49.268096][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 49.277603][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.287348][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 49.296385][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 49.305557][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 49.315144][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.324826][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 49.334154][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 49.343648][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 49.352833][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 49.362141][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 49.371491][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 49.381486][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.391568][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 49.400996][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 49.410183][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 49.419572][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 49.428683][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 49.437963][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 49.447539][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 49.456736][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 49.466186][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 49.475597][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.485345][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 49.494446][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 49.503626][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 49.512794][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.522641][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 49.531916][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 49.541077][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 49.550580][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 49.559958][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 49.569330][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 49.578536][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.588170][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 49.597619][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 49.606956][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 49.616208][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.625776][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 49.635437][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 49.644645][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 49.653856][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 49.662959][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 49.672257][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 49.681479][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.690918][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 49.700225][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 49.709719][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 49.718886][ T482] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 49.728572][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 49.737666][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.746970][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 49.756047][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 49.765188][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 49.774323][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 49.783561][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 49.792663][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 49.801975][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 49.811436][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 49.820781][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 49.830276][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 49.839504][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 49.848656][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 49.858514][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 49.867999][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.877321][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 49.886444][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 49.895537][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 49.904895][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.914218][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 49.923765][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 49.932912][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 49.942447][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 49.951645][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 49.960728][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 49.969900][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 49.979466][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 49.988802][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 49.998319][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 50.007515][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 50.016806][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 50.025781][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 50.035395][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 50.044510][ T482] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.054133][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 50.063207][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 50.072470][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 50.081485][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 50.090517][ T482] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 50.100813][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 50.109781][ T482] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 50.119449][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 50.128453][ T482] attempt to access beyond end of device [ 50.128453][ T482] loop2: rw=524288, want=720, limit=16 [ 50.139766][ T482] BUG: scheduling while atomic: syz.2.18/482/0x00000004 [ 50.146788][ T482] Modules linked in: [ 50.150756][ T482] Preemption disabled at: [ 50.150779][ T482] [] z_erofs_reload_indexes+0x1d0/0x450 [ 50.162318][ T482] CPU: 0 PID: 482 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 50.170907][ T482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 50.180956][ T482] Call Trace: [ 50.184386][ T482] __dump_stack+0x21/0x24 [ 50.188715][ T482] dump_stack_lvl+0x1a7/0x208 [ 50.193377][ T482] ? z_erofs_reload_indexes+0x1d0/0x450 [ 50.198942][ T482] ? show_regs_print_info+0x18/0x18 [ 50.204252][ T482] ? z_erofs_reload_indexes+0x1d0/0x450 [ 50.209990][ T482] dump_stack+0x15/0x1c [ 50.214151][ T482] __schedule_bug+0x183/0x240 [ 50.218916][ T482] ? __migrate_task+0x190/0x190 [ 50.223832][ T482] __schedule+0xc45/0x1320 [ 50.228507][ T482] ? __sched_text_start+0x8/0x8 [ 50.233460][ T482] ? task_work_add+0x1b2/0x1e0 [ 50.238212][ T482] schedule+0x13c/0x1d0 [ 50.242535][ T482] exit_to_user_mode_loop+0x4b/0xe0 [ 50.247922][ T482] exit_to_user_mode_prepare+0x76/0xa0 [ 50.253394][ T482] syscall_exit_to_user_mode+0x1d/0x40 [ 50.258844][ T482] do_syscall_64+0x3d/0x40 [ 50.263246][ T482] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 50.269348][ T482] RIP: 0033:0x7f4c03ec6eb9 [ 50.273845][ T482] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 50.293878][ T482] RSP: 002b:00007f4c03d2b028 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 50.302407][ T482] RAX: 0000000000000000 RBX: 00007f4c04141fa0 RCX: 00007f4c03ec6eb9 [ 50.310390][ T482] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 50.318379][ T482] RBP: 00007f4c03f34c1f R08: 0000000000000000 R09: 0000000000000000 [ 50.326540][ T482] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 50.334678][ T482] R13: 00007f4c04142038 R14: 00007f4c04141fa0 R15: 00007ffcaf955fd8 [ 50.459791][ T485] erofs: (device loop2): mounted with root inode @ nid 36. [ 50.471230][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 50.481043][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.490594][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 50.499839][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 50.509211][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 50.518925][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 50.528700][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 50.539030][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 50.548265][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.558339][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 50.568026][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 50.577650][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 50.587096][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.596632][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 50.606632][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 50.616664][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 50.626109][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 50.635411][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 50.644701][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 50.654629][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.664200][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 50.673452][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 50.682738][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 50.692418][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.701964][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 50.711476][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 50.720767][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 50.729983][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 50.739129][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 50.748263][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 50.757533][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.767808][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 50.776960][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 50.786085][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 50.795320][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.804732][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 50.813985][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 50.823657][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 50.832949][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 50.842087][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 50.851443][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 50.860692][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.870289][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 50.879643][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 50.888979][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 50.898154][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.907581][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 50.916695][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 50.926130][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 50.935553][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 50.945071][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 50.954263][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 50.963423][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 50.972922][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 50.982357][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 50.991516][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 51.000749][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.010237][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 51.019539][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 51.028701][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 51.037757][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 51.046798][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 51.055864][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 51.065026][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.075041][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 51.084620][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 51.093786][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 51.103037][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.112668][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 51.121730][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 51.131265][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 51.140597][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 51.150492][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 51.161002][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 51.171369][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.181122][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 51.190390][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 51.199760][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 51.208821][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.218728][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 51.227942][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 51.237138][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 51.246973][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 51.256576][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 51.265701][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 51.274859][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.284289][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 51.293547][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 51.303052][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 51.312132][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 51.321248][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 51.330692][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 51.339813][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 51.349459][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 51.358587][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 51.367726][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.377547][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 51.387324][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 51.396679][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 51.406852][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.416596][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 51.426221][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 51.435325][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 51.444591][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 51.453868][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 51.462949][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 51.472097][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.481413][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 51.490446][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 51.499568][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 51.508590][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.518166][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 51.527296][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 51.536302][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 51.545455][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 51.554695][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 51.563946][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 51.574101][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.584206][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 51.593464][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 51.602564][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 51.611652][ T485] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 51.621381][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 51.630538][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.639834][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 51.649010][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 51.658129][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 51.667209][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 51.676285][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 51.685733][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 51.694948][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 51.704208][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 51.713706][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 51.722953][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 51.732004][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 51.741453][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 51.750625][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 51.759813][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.769164][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 51.778308][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 51.787351][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 51.796497][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.806108][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 51.815569][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 51.825398][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 51.834448][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 51.843522][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 51.852665][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 51.861709][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.871000][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 51.880539][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 51.889685][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 51.898806][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 51.907867][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 51.916941][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 51.925988][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 51.935166][ T485] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 51.944750][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 51.953740][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 51.962812][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 51.971920][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 51.981478][ T485] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 51.991247][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 52.000217][ T485] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 52.010024][ T485] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 52.019420][ T485] BUG: scheduling while atomic: syz.2.19/485/0x00000004 [ 52.026997][ T485] Modules linked in: [ 52.030893][ T485] Preemption disabled at: [ 52.030911][ T485] [] z_erofs_reload_indexes+0x1d0/0x450 [ 52.042450][ T485] CPU: 0 PID: 485 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 52.051836][ T485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 52.062643][ T485] Call Trace: [ 52.067836][ T485] __dump_stack+0x21/0x24 [ 52.072452][ T485] dump_stack_lvl+0x1a7/0x208 [ 52.077113][ T485] ? z_erofs_reload_indexes+0x1d0/0x450 [ 52.084767][ T485] ? show_regs_print_info+0x18/0x18 [ 52.090204][ T485] ? z_erofs_reload_indexes+0x1d0/0x450 [ 52.095737][ T485] dump_stack+0x15/0x1c [ 52.099964][ T485] __schedule_bug+0x183/0x240 [ 52.104719][ T485] ? __migrate_task+0x190/0x190 [ 52.109573][ T485] __schedule+0xc45/0x1320 [ 52.113984][ T485] ? __sched_text_start+0x8/0x8 [ 52.118811][ T485] ? task_work_add+0x1b2/0x1e0 [ 52.123656][ T485] schedule+0x13c/0x1d0 [ 52.127795][ T485] exit_to_user_mode_loop+0x4b/0xe0 [ 52.133329][ T485] exit_to_user_mode_prepare+0x76/0xa0 [ 52.138866][ T485] syscall_exit_to_user_mode+0x1d/0x40 [ 52.145001][ T485] do_syscall_64+0x3d/0x40 [ 52.149748][ T485] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 52.156115][ T485] RIP: 0033:0x7f4c03ec6eb9 [ 52.160860][ T485] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 52.181667][ T485] RSP: 002b:00007f4c03d2b028 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 52.190328][ T485] RAX: 0000000000000000 RBX: 00007f4c04141fa0 RCX: 00007f4c03ec6eb9 [ 52.198333][ T485] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 52.206636][ T485] RBP: 00007f4c03f34c1f R08: 0000000000000000 R09: 0000000000000000 2026/04/13 13:24:05 executed programs: 5 [ 52.215082][ T485] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 52.223858][ T485] R13: 00007f4c04142038 R14: 00007f4c04141fa0 R15: 00007ffcaf955fd8 [ 52.378629][ T492] erofs: (device loop2): mounted with root inode @ nid 36. [ 52.387650][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 52.397495][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.406788][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 52.416050][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 52.425206][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 52.434371][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 52.443524][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 52.453596][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 52.463985][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.474104][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 52.484022][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 52.493806][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 52.503575][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.513110][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 52.522316][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 52.531455][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 52.540786][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 52.550025][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 52.559314][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 52.568812][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.578624][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 52.588172][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 52.597579][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 52.606789][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.616189][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 52.625592][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 52.634757][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 52.643978][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 52.653363][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 52.662672][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 52.672158][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.681649][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 52.690886][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 52.700237][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 52.709476][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.720095][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 52.729351][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 52.738755][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 52.747890][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 52.757114][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 52.766321][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 52.775897][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.785555][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 52.795061][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 52.804403][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 52.813906][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.824001][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 52.833724][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 52.843375][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 52.853014][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 52.862282][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 52.871794][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 52.881114][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.890520][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 52.899672][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 52.908918][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 52.918159][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.927887][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 52.937108][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 52.946394][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 52.955500][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 52.964633][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 52.974483][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 52.984166][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 52.993826][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 53.002890][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 53.011955][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 53.021370][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.030980][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 53.040136][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 53.049194][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 53.058481][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 53.067517][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 53.076623][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 53.085793][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.095111][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 53.104162][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 53.113196][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 53.122263][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.131659][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 53.141014][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 53.150968][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 53.160100][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 53.169322][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 53.178642][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 53.187824][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.197345][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 53.207036][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 53.216521][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 53.225599][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 53.235431][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 53.245064][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 53.254664][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 53.264046][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 53.273516][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 53.283794][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.293583][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 53.302750][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 53.311927][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 53.320974][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.330269][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 53.339328][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 53.348405][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 53.357519][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 53.366531][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 53.375566][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 53.384599][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.394736][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 53.404160][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 53.413227][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 53.422293][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.431610][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 53.440657][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 53.449927][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 53.459621][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 53.469254][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 53.478700][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 53.488229][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.497549][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 53.506684][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 53.515951][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 53.525017][ T492] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 53.534765][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 53.543941][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.553329][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 53.562902][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 53.572640][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 53.581751][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 53.592030][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 53.601103][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 53.610429][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 53.619983][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 53.629558][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 53.638802][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 53.648264][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 53.657342][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 53.666359][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 53.675802][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.685958][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 53.695294][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 53.704580][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 53.713994][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.723331][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 53.732621][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 53.741703][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 53.750767][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 53.759951][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 53.769001][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 53.778209][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.787748][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 53.797236][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 53.806540][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 53.815759][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 53.824937][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 53.834017][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 53.842993][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 53.851994][ T492] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 53.861584][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 53.870746][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 53.879963][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 53.888950][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 53.898336][ T492] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 53.908293][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 53.917414][ T492] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 53.927075][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 53.936449][ T492] handle_bad_sector: 17 callbacks suppressed [ 53.936456][ T492] attempt to access beyond end of device [ 53.936456][ T492] loop2: rw=524288, want=720, limit=16 [ 53.954282][ T492] attempt to access beyond end of device [ 53.954282][ T492] loop2: rw=524288, want=525144, limit=16 [ 53.965650][ T492] attempt to access beyond end of device [ 53.965650][ T492] loop2: rw=524288, want=72, limit=16 [ 53.976673][ T492] attempt to access beyond end of device [ 53.976673][ T492] loop2: rw=524288, want=1183600, limit=16 [ 53.988017][ T492] attempt to access beyond end of device [ 53.988017][ T492] loop2: rw=524288, want=296, limit=16 [ 53.999044][ T492] attempt to access beyond end of device [ 53.999044][ T492] loop2: rw=524288, want=1048976, limit=16 [ 54.010673][ T492] attempt to access beyond end of device [ 54.010673][ T492] loop2: rw=524288, want=672, limit=16 [ 54.021661][ T492] attempt to access beyond end of device [ 54.021661][ T492] loop2: rw=524288, want=3670472, limit=16 [ 54.033160][ T492] attempt to access beyond end of device [ 54.033160][ T492] loop2: rw=524288, want=790384, limit=16 [ 54.044600][ T492] BUG: scheduling while atomic: syz.2.20/492/0x00000004 [ 54.051655][ T492] Modules linked in: [ 54.055626][ T492] Preemption disabled at: [ 54.055642][ T492] [] z_erofs_reload_indexes+0x1d0/0x450 [ 54.067280][ T492] CPU: 0 PID: 492 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 54.075939][ T492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 54.085985][ T492] Call Trace: [ 54.089254][ T492] __dump_stack+0x21/0x24 [ 54.093572][ T492] dump_stack_lvl+0x1a7/0x208 [ 54.098255][ T492] ? z_erofs_reload_indexes+0x1d0/0x450 [ 54.103865][ T492] ? show_regs_print_info+0x18/0x18 [ 54.109222][ T492] ? z_erofs_reload_indexes+0x1d0/0x450 [ 54.114846][ T492] dump_stack+0x15/0x1c [ 54.118994][ T492] __schedule_bug+0x183/0x240 [ 54.123743][ T492] ? __migrate_task+0x190/0x190 [ 54.128574][ T492] __schedule+0xc45/0x1320 [ 54.133381][ T492] ? __sched_text_start+0x8/0x8 [ 54.138211][ T492] ? task_work_add+0x1b2/0x1e0 [ 54.143035][ T492] schedule+0x13c/0x1d0 [ 54.147511][ T492] exit_to_user_mode_loop+0x4b/0xe0 [ 54.153103][ T492] exit_to_user_mode_prepare+0x76/0xa0 [ 54.158709][ T492] syscall_exit_to_user_mode+0x1d/0x40 [ 54.164271][ T492] do_syscall_64+0x3d/0x40 [ 54.168937][ T492] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 54.174829][ T492] RIP: 0033:0x7f4c03ec6eb9 [ 54.179250][ T492] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 54.199017][ T492] RSP: 002b:00007f4c03d2b028 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 54.207519][ T492] RAX: 0000000000000000 RBX: 00007f4c04141fa0 RCX: 00007f4c03ec6eb9 [ 54.215612][ T492] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 54.223672][ T492] RBP: 00007f4c03f34c1f R08: 0000000000000000 R09: 0000000000000000 [ 54.231626][ T492] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 54.239675][ T492] R13: 00007f4c04142038 R14: 00007f4c04141fa0 R15: 00007ffcaf955fd8 [ 54.402759][ T495] erofs: (device loop2): mounted with root inode @ nid 36. [ 54.418788][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 54.427950][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.437494][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 54.446779][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 54.456002][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 54.465272][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 54.474753][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 54.483899][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 54.493220][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.502848][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 54.512116][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 54.521380][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 54.530514][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.540069][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 54.549352][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 54.558620][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 54.567940][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 54.577482][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 54.586609][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 54.595760][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.605189][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 54.614341][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 54.623668][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 54.633010][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.642517][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 54.651672][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 54.661068][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 54.670468][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 54.680285][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 54.689882][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 54.699668][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.709847][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 54.719158][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 54.728332][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 54.737473][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.746855][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 54.756465][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 54.765632][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 54.774885][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 54.784058][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 54.793356][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 54.802960][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.812290][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 54.821701][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 54.831141][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 54.840275][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.850119][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 54.859578][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 54.868940][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 54.878257][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 54.887943][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 54.897128][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 54.906610][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.916154][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 54.925831][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 54.935284][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 54.944697][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 54.954002][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 54.963145][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 54.972949][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 54.982261][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 54.991308][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 55.000538][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 55.010058][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.019389][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 55.028438][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 55.037492][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 55.046505][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.055913][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 55.064979][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 55.075094][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 55.084217][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 55.093292][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 55.102369][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 55.111613][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.120959][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 55.130032][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 55.139754][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 55.149788][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.159326][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 55.168399][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 55.177608][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 55.186792][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 55.195863][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 55.205054][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 55.214280][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.223584][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 55.232630][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 55.241766][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 55.250928][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 55.260429][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 55.269500][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 55.279104][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 55.288296][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 55.297735][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 55.307212][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.316608][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 55.325801][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 55.334872][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 55.344008][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.353869][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 55.363151][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 55.372416][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 55.381627][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 55.390715][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 55.400020][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 55.409281][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.418709][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 55.427839][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 55.437016][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 55.446060][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.456205][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 55.465560][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 55.475429][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 55.485519][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 55.495010][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 55.504119][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 55.513207][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.523233][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 55.532519][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 55.542033][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 55.551272][ T495] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 55.561023][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 55.570171][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.579519][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 55.588638][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 55.597684][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 55.606844][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 55.616079][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 55.625156][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 55.634204][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 55.643348][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 55.652402][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 55.661580][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 55.670640][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 55.679698][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 55.688931][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 55.698089][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.707617][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 55.716996][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 55.726131][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 55.735212][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.744713][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 55.753852][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 55.763002][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 55.772155][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 55.781204][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 55.790357][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 55.799583][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.808988][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 55.818077][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 55.827290][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 55.836312][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 55.845468][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 55.854588][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 55.863671][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 55.872780][ T495] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 55.882115][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 55.891108][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 55.900389][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 55.909558][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 55.918580][ T495] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 55.928352][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 55.937454][ T495] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 55.947159][ T495] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 55.956445][ T495] attempt to access beyond end of device [ 55.956445][ T495] loop2: rw=524288, want=720, limit=16 [ 55.967727][ T495] BUG: scheduling while atomic: syz.2.21/495/0x00000004 [ 55.974641][ T495] Modules linked in: [ 55.978545][ T495] Preemption disabled at: [ 55.978562][ T495] [] z_erofs_reload_indexes+0x1d0/0x450 [ 55.990263][ T495] CPU: 1 PID: 495 Comm: syz.2.21 Tainted: G W syzkaller #0 [ 55.998793][ T495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 56.009113][ T495] Call Trace: [ 56.012422][ T495] __dump_stack+0x21/0x24 [ 56.016753][ T495] dump_stack_lvl+0x1a7/0x208 [ 56.021589][ T495] ? z_erofs_reload_indexes+0x1d0/0x450 [ 56.027119][ T495] ? show_regs_print_info+0x18/0x18 [ 56.032300][ T495] ? z_erofs_reload_indexes+0x1d0/0x450 [ 56.037829][ T495] dump_stack+0x15/0x1c [ 56.041986][ T495] __schedule_bug+0x183/0x240 [ 56.046638][ T495] ? __migrate_task+0x190/0x190 [ 56.051481][ T495] __schedule+0xc45/0x1320 [ 56.056080][ T495] ? __sched_text_start+0x8/0x8 [ 56.061042][ T495] ? task_work_add+0x1b2/0x1e0 [ 56.065882][ T495] schedule+0x13c/0x1d0 [ 56.070054][ T495] exit_to_user_mode_loop+0x4b/0xe0 [ 56.075227][ T495] exit_to_user_mode_prepare+0x76/0xa0 [ 56.080673][ T495] syscall_exit_to_user_mode+0x1d/0x40 [ 56.086229][ T495] do_syscall_64+0x3d/0x40 [ 56.090642][ T495] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 56.096739][ T495] RIP: 0033:0x7f4c03ec6eb9 [ 56.101141][ T495] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 56.120822][ T495] RSP: 002b:00007f4c03d2b028 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 56.129318][ T495] RAX: 0000000000000000 RBX: 00007f4c04141fa0 RCX: 00007f4c03ec6eb9 [ 56.137265][ T495] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 56.145441][ T495] RBP: 00007f4c03f34c1f R08: 0000000000000000 R09: 0000000000000000 [ 56.153471][ T495] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 56.161523][ T495] R13: 00007f4c04142038 R14: 00007f4c04141fa0 R15: 00007ffcaf955fd8 [ 56.300768][ T498] erofs: (device loop2): mounted with root inode @ nid 36. [ 56.309430][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 144 @ nid 36 [ 56.319085][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.328672][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 143 @ nid 36 [ 56.337865][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 142 @ nid 36 [ 56.346997][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 141 @ nid 36 [ 56.356779][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 140 @ nid 36 [ 56.366101][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 139 @ nid 36 [ 56.375681][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 138 @ nid 36 [ 56.384903][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.394290][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 137 @ nid 36 [ 56.403419][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 136 @ nid 36 [ 56.412965][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 135 @ nid 36 [ 56.422477][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.432071][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 134 @ nid 36 [ 56.441576][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 133 @ nid 36 [ 56.450872][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 132 @ nid 36 [ 56.460096][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 131 @ nid 36 [ 56.469591][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 130 @ nid 36 [ 56.478849][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 129 @ nid 36 [ 56.487979][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.497724][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 128 @ nid 36 [ 56.506950][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 127 @ nid 36 [ 56.516138][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 126 @ nid 36 [ 56.525274][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.534682][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 125 @ nid 36 [ 56.544141][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 124 @ nid 36 [ 56.553454][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 123 @ nid 36 [ 56.562675][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 122 @ nid 36 [ 56.571810][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 121 @ nid 36 [ 56.581106][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 120 @ nid 36 [ 56.590399][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.599891][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 119 @ nid 36 [ 56.609125][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 118 @ nid 36 [ 56.618258][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 117 @ nid 36 [ 56.627459][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.637037][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 116 @ nid 36 [ 56.646341][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 115 @ nid 36 [ 56.655502][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 114 @ nid 36 [ 56.664742][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 113 @ nid 36 [ 56.673893][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 112 @ nid 36 [ 56.683358][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 111 @ nid 36 [ 56.692475][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.701756][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 110 @ nid 36 [ 56.710908][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 109 @ nid 36 [ 56.720289][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 108 @ nid 36 [ 56.729504][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.738830][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 107 @ nid 36 [ 56.747989][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 106 @ nid 36 [ 56.757100][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 105 @ nid 36 [ 56.766474][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 104 @ nid 36 [ 56.775892][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 103 @ nid 36 [ 56.785124][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 102 @ nid 36 [ 56.794304][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.804267][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 101 @ nid 36 [ 56.813532][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 100 @ nid 36 [ 56.822821][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 99 @ nid 36 [ 56.831872][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.841159][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 98 @ nid 36 [ 56.850187][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 97 @ nid 36 [ 56.859230][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 96 @ nid 36 [ 56.868301][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 95 @ nid 36 [ 56.877722][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 94 @ nid 36 [ 56.887009][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 93 @ nid 36 [ 56.896204][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.905698][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 92 @ nid 36 [ 56.914966][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 91 @ nid 36 [ 56.924195][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 90 @ nid 36 [ 56.933772][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 56.943257][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 89 @ nid 36 [ 56.952312][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 88 @ nid 36 [ 56.961651][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 87 @ nid 36 [ 56.970727][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 86 @ nid 36 [ 56.979827][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 85 @ nid 36 [ 56.988855][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 84 @ nid 36 [ 56.998030][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.007611][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 83 @ nid 36 [ 57.016658][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 82 @ nid 36 [ 57.025713][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 81 @ nid 36 [ 57.034755][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.044053][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 80 @ nid 36 [ 57.053141][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 79 @ nid 36 [ 57.062297][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 78 @ nid 36 [ 57.071446][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 77 @ nid 36 [ 57.080530][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 76 @ nid 36 [ 57.089758][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 75 @ nid 36 [ 57.098993][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.108376][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 74 @ nid 36 [ 57.117401][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 73 @ nid 36 [ 57.126512][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 72 @ nid 36 [ 57.135723][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 71 @ nid 36 [ 57.144959][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 70 @ nid 36 [ 57.154120][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 69 @ nid 36 [ 57.163182][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 68 @ nid 36 [ 57.172335][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 67 @ nid 36 [ 57.181402][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 66 @ nid 36 [ 57.190541][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.199944][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 65 @ nid 36 [ 57.209344][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 64 @ nid 36 [ 57.218569][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 63 @ nid 36 [ 57.227610][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.236932][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 62 @ nid 36 [ 57.245950][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 61 @ nid 36 [ 57.255091][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 60 @ nid 36 [ 57.264402][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 59 @ nid 36 [ 57.273460][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 58 @ nid 36 [ 57.282800][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 57 @ nid 36 [ 57.291846][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.301438][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 56 @ nid 36 [ 57.310729][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 55 @ nid 36 [ 57.319770][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 54 @ nid 36 [ 57.329246][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.338551][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 53 @ nid 36 [ 57.348068][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 52 @ nid 36 [ 57.358161][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 51 @ nid 36 [ 57.367220][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 50 @ nid 36 [ 57.376421][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 49 @ nid 36 [ 57.385785][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 48 @ nid 36 [ 57.395549][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.406207][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 47 @ nid 36 [ 57.415286][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 46 @ nid 36 [ 57.424614][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 44 @ nid 36 [ 57.433713][ T498] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 57.443383][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 43 @ nid 36 [ 57.452576][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.462160][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 41 @ nid 36 [ 57.471366][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 38 @ nid 36 [ 57.480421][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 37 @ nid 36 [ 57.489597][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 35 @ nid 36 [ 57.498688][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 34 @ nid 36 [ 57.507749][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 33 @ nid 36 [ 57.516793][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 32 @ nid 36 [ 57.525858][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 31 @ nid 36 [ 57.535401][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 29 @ nid 36 [ 57.544828][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 28 @ nid 36 [ 57.553887][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 27 @ nid 36 [ 57.563535][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 26 @ nid 36 [ 57.572868][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 25 @ nid 36 [ 57.582002][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.591342][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 24 @ nid 36 [ 57.601097][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 23 @ nid 36 [ 57.610151][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 22 @ nid 36 [ 57.619186][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.628572][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 21 @ nid 36 [ 57.637612][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 20 @ nid 36 [ 57.646647][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 19 @ nid 36 [ 57.655689][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 18 @ nid 36 [ 57.665002][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 17 @ nid 36 [ 57.674063][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 16 @ nid 36 [ 57.683380][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.692694][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 15 @ nid 36 [ 57.702067][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 14 @ nid 36 [ 57.711439][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 13 @ nid 36 [ 57.721440][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 12 @ nid 36 [ 57.730849][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 9 @ nid 36 [ 57.739993][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 8 @ nid 36 [ 57.749079][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 7 @ nid 36 [ 57.758506][ T498] erofs: (device loop2): z_erofs_extent_lookback: bogus lookback distance @ nid 36 [ 57.768284][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 36 [ 57.777280][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 36 [ 57.786285][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 36 [ 57.795242][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 36 [ 57.804502][ T498] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 57.814158][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 36 [ 57.823340][ T498] erofs: (device loop2): z_erofs_extent_lookback: invalid lookback distance 0 @ nid 36 [ 57.833143][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 0 @ nid 36 [ 57.842381][ T498] BUG: scheduling while atomic: syz.2.22/498/0x00000004 [ 57.849464][ T498] Modules linked in: [ 57.853446][ T498] Preemption disabled at: [ 57.853463][ T498] [] z_erofs_reload_indexes+0x1d0/0x450 [ 57.864961][ T498] CPU: 1 PID: 498 Comm: syz.2.22 Tainted: G W syzkaller #0 [ 57.873885][ T498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 57.883945][ T498] Call Trace: [ 57.887318][ T498] __dump_stack+0x21/0x24 [ 57.891625][ T498] dump_stack_lvl+0x1a7/0x208 [ 57.896280][ T498] ? z_erofs_reload_indexes+0x1d0/0x450 [ 57.901889][ T498] ? show_regs_print_info+0x18/0x18 [ 57.907077][ T498] ? z_erofs_reload_indexes+0x1d0/0x450 [ 57.912665][ T498] dump_stack+0x15/0x1c [ 57.916823][ T498] __schedule_bug+0x183/0x240 [ 57.921613][ T498] ? __migrate_task+0x190/0x190 [ 57.926442][ T498] __schedule+0xc45/0x1320 [ 57.930951][ T498] ? __sched_text_start+0x8/0x8 [ 57.935810][ T498] ? task_work_add+0x1b2/0x1e0 [ 57.940563][ T498] schedule+0x13c/0x1d0 [ 57.944695][ T498] exit_to_user_mode_loop+0x4b/0xe0 [ 57.949956][ T498] exit_to_user_mode_prepare+0x76/0xa0 [ 57.955706][ T498] syscall_exit_to_user_mode+0x1d/0x40 [ 57.961796][ T498] do_syscall_64+0x3d/0x40 [ 57.966459][ T498] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 57.972788][ T498] RIP: 0033:0x7f4c03ec6eb9 [ 57.977386][ T498] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 57.997249][ T498] RSP: 002b:00007f4c03d2b028 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 58.006213][ T498] RAX: 0000000000000000 RBX: 00007f4c04141fa0 RCX: 00007f4c03ec6eb9 [ 58.014303][ T498] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 58.022369][ T498] RBP: 00007f4c03f34c1f R08: 0000000000000000 R09: 0000000000000000 [ 58.030319][ T498] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 58.038281][ T498] R13: 00007f4c04142038 R14: 00007f4c04141fa0 R15: 00007ffcaf955fd8 2026/04/13 13:24:11 executed programs: 8