[ 24.348533][ T8] device bridge_slave_0 left promiscuous mode [ 24.356120][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.364793][ T8] device veth1_macvtap left promiscuous mode [ 24.371596][ T8] device veth0_vlan left promiscuous mode [ 25.294460][ T8] device bridge_slave_1 left promiscuous mode [ 25.300823][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.308459][ T8] device bridge_slave_0 left promiscuous mode [ 25.314707][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.322585][ T8] device veth1_macvtap left promiscuous mode [ 25.328716][ T8] device veth0_vlan left promiscuous mode Warning: Permanently added '10.128.1.148' (ED25519) to the list of known hosts. 2026/08/04 04:20:13 parsed 1 programs 2026/08/04 04:20:13 serving rpc on tcp://45637 Setting up swapspace version 1, size = 127995904 bytes [ 33.602703][ T30] kauditd_printk_skb: 31 callbacks suppressed [ 33.602716][ T30] audit: type=1400 audit(1785817214.450:105): avc: denied { unlink } for pid=412 comm="syz-executor" name="swap-file" dev="sda1" ino=2027 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 33.671338][ T412] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 34.123475][ T30] audit: type=1401 audit(1785817214.970:106): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" [ 34.747014][ T463] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.758318][ T463] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.766707][ T463] device bridge_slave_0 entered promiscuous mode [ 34.774508][ T463] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.781790][ T463] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.789628][ T463] device bridge_slave_1 entered promiscuous mode [ 34.825938][ T463] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.835075][ T463] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.844928][ T463] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.853322][ T463] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.873515][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.883194][ T45] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.892504][ T45] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.904250][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 34.913794][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.921630][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.941169][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 34.951206][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.959465][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.975760][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 34.984939][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 34.998562][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 35.016107][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 35.024444][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 35.032987][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 35.041508][ T463] device veth0_vlan entered promiscuous mode [ 35.056845][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 35.066235][ T463] device veth1_macvtap entered promiscuous mode [ 35.076068][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 35.094031][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/08/04 04:20:16 executed programs: 0 [ 35.375144][ T477] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.382598][ T477] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.390386][ T477] device bridge_slave_0 entered promiscuous mode [ 35.399747][ T477] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.407663][ T477] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.415768][ T477] device bridge_slave_1 entered promiscuous mode [ 35.451251][ T477] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.458770][ T477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.466619][ T477] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.474329][ T477] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.491949][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.500141][ T349] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.507949][ T349] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.517961][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 35.526574][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.533749][ T349] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.553261][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 35.561903][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 35.570031][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 35.577603][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 35.585443][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 35.594267][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.601567][ T349] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.609656][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 35.618045][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 35.627423][ T477] device veth0_vlan entered promiscuous mode [ 35.641452][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 35.651210][ T477] device veth1_macvtap entered promiscuous mode [ 35.660842][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 35.675071][ T349] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 35.699929][ T482] loop2: detected capacity change from 0 to 16 [ 35.725700][ T482] erofs: (device loop2): mounted with root inode @ nid 36. [ 35.734073][ T30] audit: type=1400 audit(1785817216.580:107): avc: denied { mount } for pid=481 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 [ 35.737952][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 35.757595][ T30] audit: type=1400 audit(1785817216.580:108): avc: denied { read } for pid=481 comm="syz.2.17" name="file2" dev="loop2" ino=89 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 35.768271][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 35.792963][ T30] audit: type=1400 audit(1785817216.580:109): avc: denied { open } for pid=481 comm="syz.2.17" path="/0/file1/file2" dev="loop2" ino=89 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 35.801436][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 35.834861][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 35.844868][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 35.854687][ T482] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 35.866366][ T482] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 35.876032][ T482] BUG: scheduling while atomic: syz.2.17/482/0x00000002 [ 35.883241][ T482] Modules linked in: [ 35.887453][ T482] Preemption disabled at: [ 35.887462][ T482] [] z_erofs_reload_indexes+0x1cc/0x410 [ 35.899313][ T482] CPU: 1 PID: 482 Comm: syz.2.17 Not tainted syzkaller #0 [ 35.906768][ T482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 35.917103][ T482] Call Trace: [ 35.920983][ T482] [ 35.923934][ T482] __dump_stack+0x21/0x30 [ 35.928344][ T482] dump_stack_lvl+0x110/0x170 [ 35.933036][ T482] ? show_regs_print_info+0x20/0x20 [ 35.938350][ T482] ? z_erofs_reload_indexes+0x1cc/0x410 [ 35.944384][ T482] dump_stack+0x15/0x20 [ 35.948794][ T482] __schedule_bug+0x180/0x230 [ 35.953735][ T482] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 35.959588][ T482] ? page_cache_ra_unbounded+0x78c/0x960 [ 35.965397][ T482] __schedule+0xc21/0x14a0 [ 35.970009][ T482] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 35.976516][ T482] ? release_firmware_map_entry+0x190/0x190 [ 35.982777][ T482] ? __kasan_check_write+0x14/0x20 [ 35.987890][ T482] ? _raw_spin_lock_irq+0x95/0xf0 [ 35.992905][ T482] schedule+0x11e/0x1e0 [ 35.997062][ T482] io_schedule+0x84/0xe0 [ 36.001291][ T482] wait_on_page_bit_common+0x6f8/0x9d0 [ 36.007310][ T482] ? wait_on_page_bit+0x50/0x50 [ 36.012708][ T482] ? page_mapcount+0xf0/0xf0 [ 36.017290][ T482] ? down_read+0xab/0x100 [ 36.021922][ T482] ? __down_common+0x360/0x360 [ 36.026761][ T482] filemap_read+0xd8d/0x21e0 [ 36.031339][ T482] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 36.037246][ T482] ? avc_policy_seqno+0x1b/0x70 [ 36.042190][ T482] generic_file_read_iter+0xac/0x420 [ 36.048082][ T482] ? iov_iter_init+0xbc/0x180 [ 36.052768][ T482] vfs_read+0x6c0/0xc20 [ 36.056952][ T482] ? kernel_read+0x1f0/0x1f0 [ 36.061733][ T482] ? wait_for_completion_killable_timeout+0x10/0x10 [ 36.069005][ T482] ? __fget_files+0x2e1/0x340 [ 36.073679][ T482] ? __fdget_pos+0x2d2/0x380 [ 36.078281][ T482] ? ksys_read+0x70/0x260 [ 36.082783][ T482] ksys_read+0x14a/0x260 [ 36.087338][ T482] ? vfs_write+0xfd0/0xfd0 [ 36.092107][ T482] ? __kasan_check_write+0x14/0x20 [ 36.097418][ T482] ? switch_fpu_return+0x15d/0x2c0 [ 36.102910][ T482] __x64_sys_read+0x7b/0x90 [ 36.107420][ T482] x64_sys_call+0x96d/0x9a0 [ 36.112183][ T482] do_syscall_64+0x4c/0xa0 [ 36.116697][ T482] ? clear_bhb_loop+0x50/0xa0 [ 36.122586][ T482] ? clear_bhb_loop+0x50/0xa0 [ 36.128886][ T482] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 36.136313][ T482] RIP: 0033:0x7fc4792d8e99 [ 36.140730][ 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 [ 36.162609][ T482] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 36.171277][ T482] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 36.180133][ T482] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 36.188147][ T482] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 36.196712][ T482] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 36.205299][ T482] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 36.214138][ T482] [ 36.219269][ T482] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 36.230266][ T482] BUG: scheduling while atomic: syz.2.17/482/0x00000002 [ 36.237871][ T482] Modules linked in: [ 36.241751][ T482] Preemption disabled at: [ 36.241757][ T482] [] z_erofs_reload_indexes+0x30c/0x410 [ 36.254131][ T482] CPU: 0 PID: 482 Comm: syz.2.17 Tainted: G W syzkaller #0 [ 36.263496][ T482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 36.273996][ T482] Call Trace: [ 36.277408][ T482] [ 36.280347][ T482] __dump_stack+0x21/0x30 [ 36.284672][ T482] dump_stack_lvl+0x110/0x170 [ 36.289440][ T482] ? show_regs_print_info+0x20/0x20 [ 36.294640][ T482] ? z_erofs_reload_indexes+0x30c/0x410 [ 36.300263][ T482] dump_stack+0x15/0x20 [ 36.304647][ T482] __schedule_bug+0x180/0x230 [ 36.309316][ T482] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 36.314588][ T482] ? blk_try_enter_queue+0x165/0x350 [ 36.319881][ T482] __schedule+0xc21/0x14a0 [ 36.324302][ T482] ? release_firmware_map_entry+0x190/0x190 [ 36.330203][ T482] ? slab_post_alloc_hook+0x6d/0x2b0 [ 36.335570][ T482] schedule+0x11e/0x1e0 [ 36.339931][ T482] schedule_timeout+0xba/0x340 [ 36.345123][ T482] ? console_conditional_schedule+0x30/0x30 [ 36.353900][ T482] ? submit_bio_noacct+0x762/0x800 [ 36.359185][ T482] ? __kasan_check_write+0x14/0x20 [ 36.364301][ T482] ? _raw_spin_lock_irq+0x95/0xf0 [ 36.369401][ T482] ? _raw_spin_lock_irqsave+0x130/0x130 [ 36.376102][ T482] io_schedule_timeout+0x8d/0x100 [ 36.381740][ T482] wait_for_common_io+0x16f/0x2e0 [ 36.387434][ T482] ? wait_for_completion_io+0x20/0x20 [ 36.392980][ T482] ? submit_bio+0x367/0x620 [ 36.397517][ T482] ? submit_bio_noacct+0x800/0x800 [ 36.402766][ T482] wait_for_completion_io+0x13/0x20 [ 36.408250][ T482] z_erofs_runqueue+0x115d/0x11f0 [ 36.414227][ T482] ? xas_load+0x2ea/0x300 [ 36.418569][ T482] ? z_erofs_do_read_page+0x2250/0x2250 [ 36.424207][ T482] ? page_cache_prev_miss+0x290/0x290 [ 36.429658][ T482] ? mutex_unlock+0x8f/0x230 [ 36.434235][ T482] ? __mutex_lock_slowpath+0x10/0x10 [ 36.439593][ T482] z_erofs_readpage+0x25d/0x4d0 [ 36.444442][ T482] ? xas_start+0x31d/0x3e0 [ 36.449226][ T482] ? z_erofs_rcu_callback+0x170/0x170 [ 36.454701][ T482] ? wait_on_page_bit+0x50/0x50 [ 36.459654][ T482] ? down_read+0xab/0x100 [ 36.464065][ T482] ? __down_common+0x360/0x360 [ 36.468957][ T482] filemap_read_page+0xd3/0x330 [ 36.473820][ T482] filemap_read+0x142e/0x21e0 [ 36.478527][ T482] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 36.484411][ T482] ? avc_policy_seqno+0x1b/0x70 [ 36.489350][ T482] generic_file_read_iter+0xac/0x420 [ 36.495257][ T482] ? iov_iter_init+0xbc/0x180 [ 36.499925][ T482] vfs_read+0x6c0/0xc20 [ 36.504248][ T482] ? kernel_read+0x1f0/0x1f0 [ 36.508949][ T482] ? wait_for_completion_killable_timeout+0x10/0x10 [ 36.515804][ T482] ? __fget_files+0x2e1/0x340 [ 36.520939][ T482] ? __fdget_pos+0x2d2/0x380 [ 36.525530][ T482] ? ksys_read+0x70/0x260 [ 36.530587][ T482] ksys_read+0x14a/0x260 [ 36.534998][ T482] ? vfs_write+0xfd0/0xfd0 [ 36.539946][ T482] ? __kasan_check_write+0x14/0x20 [ 36.545158][ T482] ? switch_fpu_return+0x15d/0x2c0 [ 36.550378][ T482] __x64_sys_read+0x7b/0x90 [ 36.555148][ T482] x64_sys_call+0x96d/0x9a0 [ 36.559760][ T482] do_syscall_64+0x4c/0xa0 [ 36.564324][ T482] ? clear_bhb_loop+0x50/0xa0 [ 36.569288][ T482] ? clear_bhb_loop+0x50/0xa0 [ 36.574147][ T482] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 36.580946][ T482] RIP: 0033:0x7fc4792d8e99 [ 36.585374][ 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 [ 36.612431][ T482] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 36.621576][ T482] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 36.629942][ T482] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 36.638219][ T482] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 36.646562][ T482] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 36.655473][ T482] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 36.664608][ T482] [ 36.708054][ T484] loop2: detected capacity change from 0 to 16 [ 36.753673][ T484] erofs: (device loop2): mounted with root inode @ nid 36. [ 36.761428][ T484] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 36.771097][ T484] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 36.780667][ T484] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 36.789826][ T484] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 36.799127][ T484] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 36.808713][ T484] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 36.819636][ T484] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 36.828987][ T484] BUG: scheduling while atomic: syz.2.18/484/0x00000002 [ 36.836463][ T484] Modules linked in: [ 36.840386][ T484] Preemption disabled at: [ 36.840393][ T484] [] z_erofs_reload_indexes+0x1cc/0x410 [ 36.852055][ T484] CPU: 1 PID: 484 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 36.861062][ T484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 36.871105][ T484] Call Trace: [ 36.874413][ T484] [ 36.877350][ T484] __dump_stack+0x21/0x30 [ 36.881864][ T484] dump_stack_lvl+0x110/0x170 [ 36.887063][ T484] ? show_regs_print_info+0x20/0x20 [ 36.892398][ T484] ? z_erofs_reload_indexes+0x1cc/0x410 [ 36.898565][ T484] dump_stack+0x15/0x20 [ 36.902857][ T484] __schedule_bug+0x180/0x230 [ 36.907762][ T484] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 36.913150][ T484] ? page_cache_ra_unbounded+0x78c/0x960 [ 36.919406][ T484] __schedule+0xc21/0x14a0 [ 36.923922][ T484] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 36.930602][ T484] ? release_firmware_map_entry+0x190/0x190 [ 36.936604][ T484] ? __kasan_check_write+0x14/0x20 [ 36.941814][ T484] ? _raw_spin_lock_irq+0x95/0xf0 [ 36.947079][ T484] schedule+0x11e/0x1e0 [ 36.951318][ T484] io_schedule+0x84/0xe0 [ 36.955736][ T484] wait_on_page_bit_common+0x6f8/0x9d0 [ 36.961288][ T484] ? wait_on_page_bit+0x50/0x50 [ 36.966500][ T484] ? page_mapcount+0xf0/0xf0 [ 36.971491][ T484] ? down_read+0xab/0x100 [ 36.975835][ T484] ? __down_common+0x360/0x360 [ 36.980583][ T484] filemap_read+0xd8d/0x21e0 [ 36.985248][ T484] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 36.990951][ T484] ? avc_policy_seqno+0x1b/0x70 [ 36.995875][ T484] generic_file_read_iter+0xac/0x420 [ 37.001448][ T484] ? iov_iter_init+0xbc/0x180 [ 37.006403][ T484] vfs_read+0x6c0/0xc20 [ 37.010554][ T484] ? kernel_read+0x1f0/0x1f0 [ 37.015336][ T484] ? wait_for_completion_killable_timeout+0x10/0x10 [ 37.022074][ T484] ? __fget_files+0x2e1/0x340 [ 37.026955][ T484] ? __fdget_pos+0x2d2/0x380 [ 37.031538][ T484] ? ksys_read+0x70/0x260 [ 37.036051][ T484] ksys_read+0x14a/0x260 [ 37.040388][ T484] ? vfs_write+0xfd0/0xfd0 [ 37.045018][ T484] ? __kasan_check_write+0x14/0x20 [ 37.050148][ T484] ? switch_fpu_return+0x15d/0x2c0 [ 37.055258][ T484] __x64_sys_read+0x7b/0x90 [ 37.059760][ T484] x64_sys_call+0x96d/0x9a0 [ 37.064720][ T484] do_syscall_64+0x4c/0xa0 [ 37.069268][ T484] ? clear_bhb_loop+0x50/0xa0 [ 37.074026][ T484] ? clear_bhb_loop+0x50/0xa0 [ 37.079091][ T484] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 37.085716][ T484] RIP: 0033:0x7fc4792d8e99 [ 37.090491][ T484] 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 [ 37.111100][ T484] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 37.119680][ T484] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 37.128706][ T484] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 37.137894][ T484] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 37.147940][ T484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 37.158381][ T484] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 37.166430][ T484] [ 37.171954][ T484] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 37.183620][ T484] BUG: scheduling while atomic: syz.2.18/484/0x00000002 [ 37.191126][ T484] Modules linked in: [ 37.197288][ T484] Preemption disabled at: [ 37.197298][ T484] [] z_erofs_reload_indexes+0x30c/0x410 [ 37.209883][ T484] CPU: 1 PID: 484 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 37.218787][ T484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 37.229115][ T484] Call Trace: [ 37.232426][ T484] [ 37.235409][ T484] __dump_stack+0x21/0x30 [ 37.239927][ T484] dump_stack_lvl+0x110/0x170 [ 37.244875][ T484] ? show_regs_print_info+0x20/0x20 [ 37.251120][ T484] ? z_erofs_reload_indexes+0x30c/0x410 [ 37.256674][ T484] dump_stack+0x15/0x20 [ 37.260995][ T484] __schedule_bug+0x180/0x230 [ 37.266465][ T484] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 37.271757][ T484] ? blk_try_enter_queue+0x165/0x350 [ 37.277162][ T484] __schedule+0xc21/0x14a0 [ 37.281832][ T484] ? release_firmware_map_entry+0x190/0x190 [ 37.287917][ T484] ? slab_post_alloc_hook+0x6d/0x2b0 [ 37.293465][ T484] schedule+0x11e/0x1e0 [ 37.297976][ T484] schedule_timeout+0xba/0x340 [ 37.302730][ T484] ? console_conditional_schedule+0x30/0x30 [ 37.308698][ T484] ? submit_bio_noacct+0x762/0x800 [ 37.314092][ T484] ? __kasan_check_write+0x14/0x20 [ 37.319589][ T484] ? _raw_spin_lock_irq+0x95/0xf0 [ 37.324628][ T484] ? _raw_spin_lock_irqsave+0x130/0x130 [ 37.330526][ T484] io_schedule_timeout+0x8d/0x100 [ 37.335896][ T484] wait_for_common_io+0x16f/0x2e0 [ 37.341112][ T484] ? wait_for_completion_io+0x20/0x20 [ 37.346688][ T484] ? submit_bio+0x367/0x620 [ 37.351330][ T484] ? submit_bio_noacct+0x800/0x800 [ 37.356489][ T484] wait_for_completion_io+0x13/0x20 [ 37.362708][ T484] z_erofs_runqueue+0x115d/0x11f0 [ 37.368393][ T484] ? xas_load+0x2ea/0x300 [ 37.373859][ T484] ? z_erofs_do_read_page+0x2250/0x2250 [ 37.379723][ T484] ? page_cache_prev_miss+0x290/0x290 [ 37.385193][ T484] ? mutex_unlock+0x8f/0x230 [ 37.389897][ T484] ? __mutex_lock_slowpath+0x10/0x10 [ 37.395188][ T484] z_erofs_readpage+0x25d/0x4d0 [ 37.400117][ T484] ? xas_start+0x31d/0x3e0 [ 37.404691][ T484] ? z_erofs_rcu_callback+0x170/0x170 [ 37.410139][ T484] ? wait_on_page_bit+0x50/0x50 [ 37.415149][ T484] ? down_read+0xab/0x100 [ 37.419481][ T484] ? __down_common+0x360/0x360 [ 37.424395][ T484] filemap_read_page+0xd3/0x330 [ 37.429321][ T484] filemap_read+0x142e/0x21e0 [ 37.434157][ T484] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 37.439879][ T484] ? avc_policy_seqno+0x1b/0x70 [ 37.444855][ T484] generic_file_read_iter+0xac/0x420 [ 37.450309][ T484] ? iov_iter_init+0xbc/0x180 [ 37.454999][ T484] vfs_read+0x6c0/0xc20 [ 37.459751][ T484] ? kernel_read+0x1f0/0x1f0 [ 37.464473][ T484] ? wait_for_completion_killable_timeout+0x10/0x10 [ 37.471527][ T484] ? __fget_files+0x2e1/0x340 [ 37.476298][ T484] ? __fdget_pos+0x2d2/0x380 [ 37.481006][ T484] ? ksys_read+0x70/0x260 [ 37.485338][ T484] ksys_read+0x14a/0x260 [ 37.489915][ T484] ? vfs_write+0xfd0/0xfd0 [ 37.494451][ T484] ? __kasan_check_write+0x14/0x20 [ 37.499573][ T484] ? switch_fpu_return+0x15d/0x2c0 [ 37.504761][ T484] __x64_sys_read+0x7b/0x90 [ 37.509249][ T484] x64_sys_call+0x96d/0x9a0 [ 37.513934][ T484] do_syscall_64+0x4c/0xa0 [ 37.518353][ T484] ? clear_bhb_loop+0x50/0xa0 [ 37.523019][ T484] ? clear_bhb_loop+0x50/0xa0 [ 37.527786][ T484] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 37.533692][ T484] RIP: 0033:0x7fc4792d8e99 [ 37.538119][ T484] 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 [ 37.558350][ T484] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 37.566751][ T484] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 37.574884][ T484] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 37.582945][ T484] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 37.591037][ T484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 37.599584][ T484] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 37.607791][ T484] [ 37.659644][ T486] loop2: detected capacity change from 0 to 16 [ 37.668274][ T486] erofs: (device loop2): mounted with root inode @ nid 36. [ 37.676684][ T486] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 37.686649][ T486] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 37.696199][ T486] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 37.705491][ T486] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 37.715958][ T486] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 37.725546][ T486] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 37.736525][ T486] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 37.746321][ T486] BUG: scheduling while atomic: syz.2.19/486/0x00000002 [ 37.753309][ T486] Modules linked in: [ 37.757480][ T486] Preemption disabled at: [ 37.757488][ T486] [] z_erofs_reload_indexes+0x1cc/0x410 [ 37.769546][ T486] CPU: 1 PID: 486 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 37.779319][ T486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 37.789480][ T486] Call Trace: [ 37.792962][ T486] [ 37.796046][ T486] __dump_stack+0x21/0x30 [ 37.800385][ T486] dump_stack_lvl+0x110/0x170 [ 37.805155][ T486] ? show_regs_print_info+0x20/0x20 [ 37.810445][ T486] ? z_erofs_reload_indexes+0x1cc/0x410 [ 37.816214][ T486] dump_stack+0x15/0x20 [ 37.820367][ T486] __schedule_bug+0x180/0x230 [ 37.825156][ T486] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 37.830767][ T486] ? page_cache_ra_unbounded+0x78c/0x960 [ 37.836685][ T486] __schedule+0xc21/0x14a0 [ 37.841138][ T486] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 37.847791][ T486] ? release_firmware_map_entry+0x190/0x190 [ 37.853711][ T486] ? __kasan_check_write+0x14/0x20 [ 37.859043][ T486] ? _raw_spin_lock_irq+0x95/0xf0 [ 37.864182][ T486] schedule+0x11e/0x1e0 [ 37.868354][ T486] io_schedule+0x84/0xe0 [ 37.873070][ T486] wait_on_page_bit_common+0x6f8/0x9d0 [ 37.878632][ T486] ? wait_on_page_bit+0x50/0x50 [ 37.883720][ T486] ? page_mapcount+0xf0/0xf0 [ 37.888338][ T486] ? down_read+0xab/0x100 [ 37.892666][ T486] ? __down_common+0x360/0x360 [ 37.897835][ T486] filemap_read+0xd8d/0x21e0 [ 37.902794][ T486] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 37.909104][ T486] ? avc_policy_seqno+0x1b/0x70 [ 37.914483][ T486] generic_file_read_iter+0xac/0x420 [ 37.920123][ T486] ? iov_iter_init+0xbc/0x180 [ 37.924895][ T486] vfs_read+0x6c0/0xc20 [ 37.929265][ T486] ? kernel_read+0x1f0/0x1f0 [ 37.933947][ T486] ? wait_for_completion_killable_timeout+0x10/0x10 [ 37.940836][ T486] ? __fget_files+0x2e1/0x340 [ 37.945899][ T486] ? __fdget_pos+0x2d2/0x380 [ 37.950780][ T486] ? ksys_read+0x70/0x260 [ 37.955243][ T486] ksys_read+0x14a/0x260 [ 37.960595][ T486] ? vfs_write+0xfd0/0xfd0 [ 37.965294][ T486] ? __kasan_check_write+0x14/0x20 [ 37.970581][ T486] ? switch_fpu_return+0x15d/0x2c0 [ 37.975818][ T486] __x64_sys_read+0x7b/0x90 [ 37.980701][ T486] x64_sys_call+0x96d/0x9a0 [ 37.985218][ T486] do_syscall_64+0x4c/0xa0 [ 37.989746][ T486] ? clear_bhb_loop+0x50/0xa0 [ 37.996024][ T486] ? clear_bhb_loop+0x50/0xa0 [ 38.001578][ T486] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 38.007699][ T486] RIP: 0033:0x7fc4792d8e99 [ 38.012356][ T486] 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 [ 38.032465][ T486] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 38.041054][ T486] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 38.049881][ T486] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 38.058299][ T486] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 38.066890][ T486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 38.075060][ T486] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 38.083506][ T486] [ 38.087506][ T486] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 38.098459][ T486] BUG: scheduling while atomic: syz.2.19/486/0x00000002 [ 38.105645][ T486] Modules linked in: [ 38.109597][ T486] Preemption disabled at: [ 38.109607][ T486] [] z_erofs_reload_indexes+0x30c/0x410 [ 38.121412][ T486] CPU: 1 PID: 486 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 38.130195][ T486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 38.140599][ T486] Call Trace: [ 38.143881][ T486] [ 38.146797][ T486] __dump_stack+0x21/0x30 [ 38.151221][ T486] dump_stack_lvl+0x110/0x170 [ 38.156273][ T486] ? show_regs_print_info+0x20/0x20 [ 38.161811][ T486] ? z_erofs_reload_indexes+0x30c/0x410 [ 38.167539][ T486] dump_stack+0x15/0x20 [ 38.171697][ T486] __schedule_bug+0x180/0x230 [ 38.176720][ T486] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 38.181996][ T486] ? blk_try_enter_queue+0x165/0x350 [ 38.187473][ T486] __schedule+0xc21/0x14a0 [ 38.191922][ T486] ? release_firmware_map_entry+0x190/0x190 [ 38.198543][ T486] ? slab_post_alloc_hook+0x6d/0x2b0 [ 38.204001][ T486] schedule+0x11e/0x1e0 [ 38.208277][ T486] schedule_timeout+0xba/0x340 [ 38.213238][ T486] ? console_conditional_schedule+0x30/0x30 [ 38.219325][ T486] ? submit_bio_noacct+0x762/0x800 [ 38.224613][ T486] ? __kasan_check_write+0x14/0x20 [ 38.229737][ T486] ? _raw_spin_lock_irq+0x95/0xf0 [ 38.235133][ T486] ? _raw_spin_lock_irqsave+0x130/0x130 [ 38.241564][ T486] io_schedule_timeout+0x8d/0x100 [ 38.247404][ T486] wait_for_common_io+0x16f/0x2e0 [ 38.252463][ T486] ? wait_for_completion_io+0x20/0x20 [ 38.257913][ T486] ? submit_bio+0x367/0x620 [ 38.262616][ T486] ? submit_bio_noacct+0x800/0x800 [ 38.267740][ T486] wait_for_completion_io+0x13/0x20 [ 38.272989][ T486] z_erofs_runqueue+0x115d/0x11f0 [ 38.278046][ T486] ? xas_load+0x2ea/0x300 [ 38.282552][ T486] ? z_erofs_do_read_page+0x2250/0x2250 [ 38.288195][ T486] ? page_cache_prev_miss+0x290/0x290 [ 38.293594][ T486] ? mutex_unlock+0x8f/0x230 [ 38.298240][ T486] ? __mutex_lock_slowpath+0x10/0x10 [ 38.303541][ T486] z_erofs_readpage+0x25d/0x4d0 [ 38.308400][ T486] ? xas_start+0x31d/0x3e0 [ 38.312915][ T486] ? z_erofs_rcu_callback+0x170/0x170 [ 38.318374][ T486] ? wait_on_page_bit+0x50/0x50 [ 38.323489][ T486] ? down_read+0xab/0x100 [ 38.328023][ T486] ? __down_common+0x360/0x360 [ 38.332857][ T486] filemap_read_page+0xd3/0x330 [ 38.337694][ T486] filemap_read+0x142e/0x21e0 [ 38.342542][ T486] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 38.348315][ T486] ? avc_policy_seqno+0x1b/0x70 [ 38.353441][ T486] generic_file_read_iter+0xac/0x420 [ 38.358937][ T486] ? iov_iter_init+0xbc/0x180 [ 38.364370][ T486] vfs_read+0x6c0/0xc20 [ 38.368538][ T486] ? kernel_read+0x1f0/0x1f0 [ 38.373340][ T486] ? wait_for_completion_killable_timeout+0x10/0x10 [ 38.379943][ T486] ? __fget_files+0x2e1/0x340 [ 38.384657][ T486] ? __fdget_pos+0x2d2/0x380 [ 38.389513][ T486] ? ksys_read+0x70/0x260 [ 38.394043][ T486] ksys_read+0x14a/0x260 [ 38.398982][ T486] ? vfs_write+0xfd0/0xfd0 [ 38.403410][ T486] ? __kasan_check_write+0x14/0x20 [ 38.408967][ T486] ? switch_fpu_return+0x15d/0x2c0 [ 38.414632][ T486] __x64_sys_read+0x7b/0x90 [ 38.419285][ T486] x64_sys_call+0x96d/0x9a0 [ 38.424140][ T486] do_syscall_64+0x4c/0xa0 [ 38.428668][ T486] ? clear_bhb_loop+0x50/0xa0 [ 38.433353][ T486] ? clear_bhb_loop+0x50/0xa0 [ 38.438032][ T486] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 38.444034][ T486] RIP: 0033:0x7fc4792d8e99 [ 38.448473][ T486] 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 [ 38.468484][ T486] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 38.476986][ T486] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 38.485125][ T486] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 38.493257][ T486] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 38.501225][ T486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 38.509277][ T486] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 38.517416][ T486] [ 38.566219][ T8] device bridge_slave_1 left promiscuous mode [ 38.573435][ T488] loop2: detected capacity change from 0 to 16 [ 38.580140][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.583768][ T488] erofs: (device loop2): mounted with root inode @ nid 36. [ 38.595604][ T8] device bridge_slave_0 left promiscuous mode [ 38.596145][ T488] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 38.608398][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.611696][ T488] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 38.628697][ T488] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 38.638365][ T8] device veth1_macvtap left promiscuous mode [ 38.638424][ T488] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 38.644865][ T8] device veth0_vlan left promiscuous mode [ 38.654233][ T488] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 38.669530][ T488] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 38.680554][ T488] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 38.689653][ T488] BUG: scheduling while atomic: syz.2.20/488/0x00000002 [ 38.696840][ T488] Modules linked in: [ 38.700927][ T488] Preemption disabled at: [ 38.700937][ T488] [] z_erofs_reload_indexes+0x1cc/0x410 [ 38.713375][ T488] CPU: 1 PID: 488 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 38.722087][ T488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 38.732401][ T488] Call Trace: [ 38.735743][ T488] [ 38.738672][ T488] __dump_stack+0x21/0x30 [ 38.743309][ T488] dump_stack_lvl+0x110/0x170 [ 38.748011][ T488] ? show_regs_print_info+0x20/0x20 [ 38.753215][ T488] ? z_erofs_reload_indexes+0x1cc/0x410 [ 38.758994][ T488] dump_stack+0x15/0x20 [ 38.763751][ T488] __schedule_bug+0x180/0x230 [ 38.768518][ T488] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 38.774289][ T488] ? page_cache_ra_unbounded+0x78c/0x960 [ 38.780315][ T488] __schedule+0xc21/0x14a0 [ 38.784880][ T488] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 38.791395][ T488] ? release_firmware_map_entry+0x190/0x190 [ 38.797888][ T488] ? __kasan_check_write+0x14/0x20 [ 38.803017][ T488] ? _raw_spin_lock_irq+0x95/0xf0 [ 38.808051][ T488] schedule+0x11e/0x1e0 [ 38.812572][ T488] io_schedule+0x84/0xe0 [ 38.817152][ T488] wait_on_page_bit_common+0x6f8/0x9d0 [ 38.822782][ T488] ? wait_on_page_bit+0x50/0x50 [ 38.827831][ T488] ? page_mapcount+0xf0/0xf0 [ 38.832498][ T488] ? down_read+0xab/0x100 [ 38.836910][ T488] ? __down_common+0x360/0x360 [ 38.841869][ T488] filemap_read+0xd8d/0x21e0 [ 38.846469][ T488] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 38.852414][ T488] ? avc_policy_seqno+0x1b/0x70 [ 38.857305][ T488] generic_file_read_iter+0xac/0x420 [ 38.862869][ T488] ? iov_iter_init+0xbc/0x180 [ 38.867563][ T488] vfs_read+0x6c0/0xc20 [ 38.871939][ T488] ? kernel_read+0x1f0/0x1f0 [ 38.876772][ T488] ? wait_for_completion_killable_timeout+0x10/0x10 [ 38.883364][ T488] ? __fget_files+0x2e1/0x340 [ 38.888035][ T488] ? __fdget_pos+0x2d2/0x380 [ 38.892608][ T488] ? ksys_read+0x70/0x260 [ 38.896939][ T488] ksys_read+0x14a/0x260 [ 38.901293][ T488] ? vfs_write+0xfd0/0xfd0 [ 38.905711][ T488] ? __kasan_check_write+0x14/0x20 [ 38.910902][ T488] ? switch_fpu_return+0x15d/0x2c0 [ 38.916446][ T488] __x64_sys_read+0x7b/0x90 [ 38.921376][ T488] x64_sys_call+0x96d/0x9a0 [ 38.925895][ T488] do_syscall_64+0x4c/0xa0 [ 38.930320][ T488] ? clear_bhb_loop+0x50/0xa0 [ 38.935939][ T488] ? clear_bhb_loop+0x50/0xa0 [ 38.940812][ T488] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 38.946938][ T488] RIP: 0033:0x7fc4792d8e99 [ 38.951446][ T488] 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 [ 38.972047][ T488] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 38.980479][ T488] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 38.988437][ T488] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 38.996752][ T488] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 39.005292][ T488] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 39.013547][ T488] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 39.021942][ T488] [ 39.026876][ T488] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 39.038094][ T488] BUG: scheduling while atomic: syz.2.20/488/0x00000002 [ 39.045525][ T488] Modules linked in: [ 39.049415][ T488] Preemption disabled at: [ 39.049423][ T488] [] z_erofs_reload_indexes+0x30c/0x410 [ 39.061838][ T488] CPU: 1 PID: 488 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 39.070354][ T488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 39.081434][ T488] Call Trace: [ 39.085589][ T488] [ 39.088510][ T488] __dump_stack+0x21/0x30 [ 39.092853][ T488] dump_stack_lvl+0x110/0x170 [ 39.097695][ T488] ? show_regs_print_info+0x20/0x20 [ 39.102900][ T488] ? z_erofs_reload_indexes+0x30c/0x410 [ 39.108435][ T488] dump_stack+0x15/0x20 [ 39.112604][ T488] __schedule_bug+0x180/0x230 [ 39.117309][ T488] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 39.122677][ T488] ? blk_try_enter_queue+0x165/0x350 [ 39.128175][ T488] __schedule+0xc21/0x14a0 [ 39.132597][ T488] ? release_firmware_map_entry+0x190/0x190 [ 39.138720][ T488] ? slab_post_alloc_hook+0x6d/0x2b0 [ 39.143998][ T488] schedule+0x11e/0x1e0 [ 39.148705][ T488] schedule_timeout+0xba/0x340 [ 39.153706][ T488] ? console_conditional_schedule+0x30/0x30 [ 39.159867][ T488] ? submit_bio_noacct+0x762/0x800 [ 39.164981][ T488] ? __kasan_check_write+0x14/0x20 [ 39.170092][ T488] ? _raw_spin_lock_irq+0x95/0xf0 [ 39.175243][ T488] ? _raw_spin_lock_irqsave+0x130/0x130 [ 39.181029][ T488] io_schedule_timeout+0x8d/0x100 [ 39.186873][ T488] wait_for_common_io+0x16f/0x2e0 [ 39.192267][ T488] ? wait_for_completion_io+0x20/0x20 [ 39.198245][ T488] ? submit_bio+0x367/0x620 [ 39.203092][ T488] ? submit_bio_noacct+0x800/0x800 [ 39.208379][ T488] wait_for_completion_io+0x13/0x20 [ 39.213789][ T488] z_erofs_runqueue+0x115d/0x11f0 [ 39.219452][ T488] ? xas_load+0x2ea/0x300 [ 39.223870][ T488] ? z_erofs_do_read_page+0x2250/0x2250 [ 39.229497][ T488] ? page_cache_prev_miss+0x290/0x290 [ 39.235038][ T488] ? mutex_unlock+0x8f/0x230 [ 39.240484][ T488] ? __mutex_lock_slowpath+0x10/0x10 [ 39.246074][ T488] z_erofs_readpage+0x25d/0x4d0 [ 39.251486][ T488] ? xas_start+0x31d/0x3e0 [ 39.256109][ T488] ? z_erofs_rcu_callback+0x170/0x170 [ 39.262103][ T488] ? wait_on_page_bit+0x50/0x50 [ 39.267012][ T488] ? down_read+0xab/0x100 [ 39.271448][ T488] ? __down_common+0x360/0x360 [ 39.276561][ T488] filemap_read_page+0xd3/0x330 [ 39.282051][ T488] filemap_read+0x142e/0x21e0 [ 39.287163][ T488] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 39.293322][ T488] ? avc_policy_seqno+0x1b/0x70 [ 39.298531][ T488] generic_file_read_iter+0xac/0x420 [ 39.303912][ T488] ? iov_iter_init+0xbc/0x180 [ 39.308873][ T488] vfs_read+0x6c0/0xc20 [ 39.313563][ T488] ? kernel_read+0x1f0/0x1f0 [ 39.318162][ T488] ? wait_for_completion_killable_timeout+0x10/0x10 [ 39.325103][ T488] ? __fget_files+0x2e1/0x340 [ 39.330569][ T488] ? __fdget_pos+0x2d2/0x380 [ 39.335159][ T488] ? ksys_read+0x70/0x260 [ 39.340170][ T488] ksys_read+0x14a/0x260 [ 39.345069][ T488] ? vfs_write+0xfd0/0xfd0 [ 39.349777][ T488] ? __kasan_check_write+0x14/0x20 [ 39.354975][ T488] ? switch_fpu_return+0x15d/0x2c0 [ 39.360187][ T488] __x64_sys_read+0x7b/0x90 [ 39.364961][ T488] x64_sys_call+0x96d/0x9a0 [ 39.369466][ T488] do_syscall_64+0x4c/0xa0 [ 39.373887][ T488] ? clear_bhb_loop+0x50/0xa0 [ 39.379031][ T488] ? clear_bhb_loop+0x50/0xa0 [ 39.383801][ T488] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 39.389887][ T488] RIP: 0033:0x7fc4792d8e99 [ 39.394411][ T488] 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 [ 39.414290][ T488] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 39.422781][ T488] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 39.430948][ T488] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 39.439225][ T488] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 39.448141][ T488] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 39.456332][ T488] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 39.464519][ T488] [ 39.508163][ T490] loop2: detected capacity change from 0 to 16 [ 39.518042][ T490] erofs: (device loop2): mounted with root inode @ nid 36. [ 39.527070][ T490] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 39.536767][ T490] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 39.546346][ T490] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 39.556054][ T490] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 39.565131][ T490] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 39.574560][ T490] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 39.585223][ T490] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 39.594521][ T490] BUG: scheduling while atomic: syz.2.21/490/0x00000002 [ 39.601462][ T490] Modules linked in: [ 39.605457][ T490] Preemption disabled at: [ 39.605465][ T490] [] z_erofs_reload_indexes+0x1cc/0x410 [ 39.617025][ T490] CPU: 0 PID: 490 Comm: syz.2.21 Tainted: G W syzkaller #0 [ 39.625607][ T490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 39.635794][ T490] Call Trace: [ 39.639152][ T490] [ 39.642070][ T490] __dump_stack+0x21/0x30 [ 39.646480][ T490] dump_stack_lvl+0x110/0x170 [ 39.651236][ T490] ? show_regs_print_info+0x20/0x20 [ 39.656471][ T490] ? z_erofs_reload_indexes+0x1cc/0x410 [ 39.662016][ T490] dump_stack+0x15/0x20 [ 39.666358][ T490] __schedule_bug+0x180/0x230 [ 39.671624][ T490] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 39.677441][ T490] ? page_cache_ra_unbounded+0x78c/0x960 [ 39.683224][ T490] __schedule+0xc21/0x14a0 [ 39.688486][ T490] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 39.695008][ T490] ? release_firmware_map_entry+0x190/0x190 [ 39.700939][ T490] ? __kasan_check_write+0x14/0x20 [ 39.706154][ T490] ? _raw_spin_lock_irq+0x95/0xf0 [ 39.711558][ T490] schedule+0x11e/0x1e0 [ 39.715918][ T490] io_schedule+0x84/0xe0 [ 39.720156][ T490] wait_on_page_bit_common+0x6f8/0x9d0 [ 39.725889][ T490] ? wait_on_page_bit+0x50/0x50 [ 39.730916][ T490] ? page_mapcount+0xf0/0xf0 [ 39.735582][ T490] ? down_read+0xab/0x100 [ 39.739910][ T490] ? __down_common+0x360/0x360 [ 39.744989][ T490] filemap_read+0xd8d/0x21e0 [ 39.749603][ T490] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 39.755401][ T490] ? avc_policy_seqno+0x1b/0x70 [ 39.760377][ T490] generic_file_read_iter+0xac/0x420 [ 39.766171][ T490] ? iov_iter_init+0xbc/0x180 [ 39.771594][ T490] vfs_read+0x6c0/0xc20 [ 39.776096][ T490] ? kernel_read+0x1f0/0x1f0 [ 39.780866][ T490] ? wait_for_completion_killable_timeout+0x10/0x10 [ 39.788122][ T490] ? __fget_files+0x2e1/0x340 [ 39.792970][ T490] ? __fdget_pos+0x2d2/0x380 [ 39.797570][ T490] ? ksys_read+0x70/0x260 [ 39.802020][ T490] ksys_read+0x14a/0x260 [ 39.806351][ T490] ? vfs_write+0xfd0/0xfd0 [ 39.810940][ T490] ? __kasan_check_write+0x14/0x20 [ 39.816486][ T490] ? switch_fpu_return+0x15d/0x2c0 [ 39.822195][ T490] __x64_sys_read+0x7b/0x90 [ 39.828526][ T490] x64_sys_call+0x96d/0x9a0 [ 39.833983][ T490] do_syscall_64+0x4c/0xa0 [ 39.839052][ T490] ? clear_bhb_loop+0x50/0xa0 [ 39.844710][ T490] ? clear_bhb_loop+0x50/0xa0 [ 39.850100][ T490] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 39.856241][ T490] RIP: 0033:0x7fc4792d8e99 [ 39.860758][ T490] 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 [ 39.881085][ T490] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 39.889854][ T490] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 39.898371][ T490] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 39.906393][ T490] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 39.914468][ T490] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 39.922695][ T490] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 39.930937][ T490] [ 39.935246][ T490] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 39.946415][ T490] BUG: scheduling while atomic: syz.2.21/490/0x00000002 [ 39.954408][ T490] Modules linked in: [ 39.958496][ T490] Preemption disabled at: [ 39.958504][ T490] [] z_erofs_reload_indexes+0x30c/0x410 [ 39.970206][ T490] CPU: 0 PID: 490 Comm: syz.2.21 Tainted: G W syzkaller #0 [ 39.978701][ T490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 39.988751][ T490] Call Trace: [ 39.992025][ T490] [ 39.994955][ T490] __dump_stack+0x21/0x30 [ 39.999289][ T490] dump_stack_lvl+0x110/0x170 [ 40.004539][ T490] ? show_regs_print_info+0x20/0x20 [ 40.009918][ T490] ? z_erofs_reload_indexes+0x30c/0x410 [ 40.015469][ T490] dump_stack+0x15/0x20 [ 40.019664][ T490] __schedule_bug+0x180/0x230 [ 40.024567][ T490] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 40.029870][ T490] ? blk_try_enter_queue+0x165/0x350 [ 40.035373][ T490] __schedule+0xc21/0x14a0 [ 40.040044][ T490] ? release_firmware_map_entry+0x190/0x190 [ 40.046053][ T490] ? slab_post_alloc_hook+0x6d/0x2b0 [ 40.051341][ T490] schedule+0x11e/0x1e0 [ 40.055597][ T490] schedule_timeout+0xba/0x340 [ 40.060388][ T490] ? console_conditional_schedule+0x30/0x30 [ 40.066426][ T490] ? submit_bio_noacct+0x762/0x800 [ 40.071623][ T490] ? __kasan_check_write+0x14/0x20 [ 40.076959][ T490] ? _raw_spin_lock_irq+0x95/0xf0 [ 40.081990][ T490] ? _raw_spin_lock_irqsave+0x130/0x130 [ 40.087858][ T490] io_schedule_timeout+0x8d/0x100 [ 40.092982][ T490] wait_for_common_io+0x16f/0x2e0 [ 40.098343][ T490] ? wait_for_completion_io+0x20/0x20 [ 40.103854][ T490] ? submit_bio+0x367/0x620 [ 40.108441][ T490] ? submit_bio_noacct+0x800/0x800 [ 40.113738][ T490] wait_for_completion_io+0x13/0x20 [ 40.119024][ T490] z_erofs_runqueue+0x115d/0x11f0 [ 40.124580][ T490] ? xas_load+0x2ea/0x300 [ 40.129018][ T490] ? z_erofs_do_read_page+0x2250/0x2250 [ 40.134587][ T490] ? page_cache_prev_miss+0x290/0x290 [ 40.139947][ T490] ? mutex_unlock+0x8f/0x230 [ 40.144536][ T490] ? __mutex_lock_slowpath+0x10/0x10 [ 40.149894][ T490] z_erofs_readpage+0x25d/0x4d0 [ 40.154761][ T490] ? xas_start+0x31d/0x3e0 [ 40.159168][ T490] ? z_erofs_rcu_callback+0x170/0x170 [ 40.164536][ T490] ? wait_on_page_bit+0x50/0x50 [ 40.169380][ T490] ? down_read+0xab/0x100 [ 40.173780][ T490] ? __down_common+0x360/0x360 [ 40.178580][ T490] filemap_read_page+0xd3/0x330 [ 40.183572][ T490] filemap_read+0x142e/0x21e0 [ 40.188267][ T490] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 40.193982][ T490] ? avc_policy_seqno+0x1b/0x70 [ 40.199031][ T490] generic_file_read_iter+0xac/0x420 [ 40.204406][ T490] ? iov_iter_init+0xbc/0x180 [ 40.209078][ T490] vfs_read+0x6c0/0xc20 [ 40.213224][ T490] ? kernel_read+0x1f0/0x1f0 [ 40.217885][ T490] ? wait_for_completion_killable_timeout+0x10/0x10 [ 40.224733][ T490] ? __fget_files+0x2e1/0x340 [ 40.229661][ T490] ? __fdget_pos+0x2d2/0x380 [ 40.234275][ T490] ? ksys_read+0x70/0x260 [ 40.238673][ T490] ksys_read+0x14a/0x260 [ 40.242985][ T490] ? vfs_write+0xfd0/0xfd0 [ 40.247393][ T490] ? __kasan_check_write+0x14/0x20 [ 40.252508][ T490] ? switch_fpu_return+0x15d/0x2c0 [ 40.257646][ T490] __x64_sys_read+0x7b/0x90 [ 40.262134][ T490] x64_sys_call+0x96d/0x9a0 [ 40.266623][ T490] do_syscall_64+0x4c/0xa0 [ 40.271020][ T490] ? clear_bhb_loop+0x50/0xa0 [ 40.275685][ T490] ? clear_bhb_loop+0x50/0xa0 [ 40.280433][ T490] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 40.286743][ T490] RIP: 0033:0x7fc4792d8e99 [ 40.291265][ T490] 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 [ 40.311314][ T490] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 40.319754][ T490] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 40.327734][ T490] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 40.335824][ T490] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 40.343888][ T490] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 40.351871][ T490] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 40.360145][ T490] 2026/08/04 04:20:21 executed programs: 7 [ 40.410144][ T492] loop2: detected capacity change from 0 to 16 [ 40.417891][ T492] erofs: (device loop2): mounted with root inode @ nid 36. [ 40.426045][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 40.435312][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 40.444400][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 40.453934][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 40.463655][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 40.472949][ T492] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 40.483733][ T492] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 40.492933][ T492] BUG: scheduling while atomic: syz.2.22/492/0x00000002 [ 40.500085][ T492] Modules linked in: [ 40.504010][ T492] Preemption disabled at: [ 40.504020][ T492] [] z_erofs_reload_indexes+0x1cc/0x410 [ 40.515555][ T492] CPU: 1 PID: 492 Comm: syz.2.22 Tainted: G W syzkaller #0 [ 40.524323][ T492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 40.534477][ T492] Call Trace: [ 40.537844][ T492] [ 40.540769][ T492] __dump_stack+0x21/0x30 [ 40.545107][ T492] dump_stack_lvl+0x110/0x170 [ 40.550142][ T492] ? show_regs_print_info+0x20/0x20 [ 40.555531][ T492] ? z_erofs_reload_indexes+0x1cc/0x410 [ 40.561261][ T492] dump_stack+0x15/0x20 [ 40.565437][ T492] __schedule_bug+0x180/0x230 [ 40.570131][ T492] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 40.575414][ T492] ? page_cache_ra_unbounded+0x78c/0x960 [ 40.581243][ T492] __schedule+0xc21/0x14a0 [ 40.585774][ T492] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 40.592375][ T492] ? release_firmware_map_entry+0x190/0x190 [ 40.598465][ T492] ? __kasan_check_write+0x14/0x20 [ 40.603651][ T492] ? _raw_spin_lock_irq+0x95/0xf0 [ 40.608805][ T492] schedule+0x11e/0x1e0 [ 40.613098][ T492] io_schedule+0x84/0xe0 [ 40.617441][ T492] wait_on_page_bit_common+0x6f8/0x9d0 [ 40.623169][ T492] ? wait_on_page_bit+0x50/0x50 [ 40.628030][ T492] ? page_mapcount+0xf0/0xf0 [ 40.632726][ T492] ? down_read+0xab/0x100 [ 40.637068][ T492] ? __down_common+0x360/0x360 [ 40.642183][ T492] filemap_read+0xd8d/0x21e0 [ 40.646767][ T492] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 40.652932][ T492] ? avc_policy_seqno+0x1b/0x70 [ 40.657973][ T492] generic_file_read_iter+0xac/0x420 [ 40.663677][ T492] ? iov_iter_init+0xbc/0x180 [ 40.668788][ T492] vfs_read+0x6c0/0xc20 [ 40.673105][ T492] ? kernel_read+0x1f0/0x1f0 [ 40.677922][ T492] ? wait_for_completion_killable_timeout+0x10/0x10 [ 40.684829][ T492] ? __fget_files+0x2e1/0x340 [ 40.689627][ T492] ? __fdget_pos+0x2d2/0x380 [ 40.694572][ T492] ? ksys_read+0x70/0x260 [ 40.699371][ T492] ksys_read+0x14a/0x260 [ 40.703964][ T492] ? vfs_write+0xfd0/0xfd0 [ 40.708385][ T492] ? __kasan_check_write+0x14/0x20 [ 40.713961][ T492] ? switch_fpu_return+0x15d/0x2c0 [ 40.719183][ T492] __x64_sys_read+0x7b/0x90 [ 40.723838][ T492] x64_sys_call+0x96d/0x9a0 [ 40.728709][ T492] do_syscall_64+0x4c/0xa0 [ 40.733152][ T492] ? clear_bhb_loop+0x50/0xa0 [ 40.737941][ T492] ? clear_bhb_loop+0x50/0xa0 [ 40.743213][ T492] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 40.749188][ T492] RIP: 0033:0x7fc4792d8e99 [ 40.753672][ 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 [ 40.774139][ T492] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 40.782662][ T492] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 40.790636][ T492] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 40.798701][ T492] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 40.807250][ T492] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 40.815337][ T492] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 40.823675][ T492] [ 40.827421][ T492] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 40.838303][ T492] BUG: scheduling while atomic: syz.2.22/492/0x00000002 [ 40.846220][ T492] Modules linked in: [ 40.850138][ T492] Preemption disabled at: [ 40.850147][ T492] [] z_erofs_reload_indexes+0x30c/0x410 [ 40.861928][ T492] CPU: 1 PID: 492 Comm: syz.2.22 Tainted: G W syzkaller #0 [ 40.870572][ T492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 40.880849][ T492] Call Trace: [ 40.884224][ T492] [ 40.887954][ T492] __dump_stack+0x21/0x30 [ 40.892479][ T492] dump_stack_lvl+0x110/0x170 [ 40.897179][ T492] ? show_regs_print_info+0x20/0x20 [ 40.902630][ T492] ? z_erofs_reload_indexes+0x30c/0x410 [ 40.908266][ T492] dump_stack+0x15/0x20 [ 40.912416][ T492] __schedule_bug+0x180/0x230 [ 40.917271][ T492] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 40.922761][ T492] ? blk_try_enter_queue+0x165/0x350 [ 40.928313][ T492] __schedule+0xc21/0x14a0 [ 40.932895][ T492] ? release_firmware_map_entry+0x190/0x190 [ 40.938776][ T492] ? slab_post_alloc_hook+0x6d/0x2b0 [ 40.944224][ T492] schedule+0x11e/0x1e0 [ 40.948469][ T492] schedule_timeout+0xba/0x340 [ 40.953489][ T492] ? console_conditional_schedule+0x30/0x30 [ 40.959372][ T492] ? submit_bio_noacct+0x762/0x800 [ 40.964485][ T492] ? __kasan_check_write+0x14/0x20 [ 40.969617][ T492] ? _raw_spin_lock_irq+0x95/0xf0 [ 40.974654][ T492] ? _raw_spin_lock_irqsave+0x130/0x130 [ 40.980192][ T492] io_schedule_timeout+0x8d/0x100 [ 40.985216][ T492] wait_for_common_io+0x16f/0x2e0 [ 40.990319][ T492] ? wait_for_completion_io+0x20/0x20 [ 40.995687][ T492] ? submit_bio+0x367/0x620 [ 41.000271][ T492] ? submit_bio_noacct+0x800/0x800 [ 41.005369][ T492] wait_for_completion_io+0x13/0x20 [ 41.010730][ T492] z_erofs_runqueue+0x115d/0x11f0 [ 41.015845][ T492] ? xas_load+0x2ea/0x300 [ 41.020276][ T492] ? z_erofs_do_read_page+0x2250/0x2250 [ 41.025907][ T492] ? page_cache_prev_miss+0x290/0x290 [ 41.031462][ T492] ? mutex_unlock+0x8f/0x230 [ 41.036412][ T492] ? __mutex_lock_slowpath+0x10/0x10 [ 41.042415][ T492] z_erofs_readpage+0x25d/0x4d0 [ 41.047783][ T492] ? xas_start+0x31d/0x3e0 [ 41.052974][ T492] ? z_erofs_rcu_callback+0x170/0x170 [ 41.058967][ T492] ? wait_on_page_bit+0x50/0x50 [ 41.063900][ T492] ? down_read+0xab/0x100 [ 41.068674][ T492] ? __down_common+0x360/0x360 [ 41.074405][ T492] filemap_read_page+0xd3/0x330 [ 41.079614][ T492] filemap_read+0x142e/0x21e0 [ 41.084714][ T492] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 41.091037][ T492] ? avc_policy_seqno+0x1b/0x70 [ 41.095972][ T492] generic_file_read_iter+0xac/0x420 [ 41.101788][ T492] ? iov_iter_init+0xbc/0x180 [ 41.107032][ T492] vfs_read+0x6c0/0xc20 [ 41.111208][ T492] ? kernel_read+0x1f0/0x1f0 [ 41.116194][ T492] ? wait_for_completion_killable_timeout+0x10/0x10 [ 41.122876][ T492] ? __fget_files+0x2e1/0x340 [ 41.127571][ T492] ? __fdget_pos+0x2d2/0x380 [ 41.132149][ T492] ? ksys_read+0x70/0x260 [ 41.136578][ T492] ksys_read+0x14a/0x260 [ 41.140979][ T492] ? vfs_write+0xfd0/0xfd0 [ 41.145382][ T492] ? __kasan_check_write+0x14/0x20 [ 41.150784][ T492] ? switch_fpu_return+0x15d/0x2c0 [ 41.155904][ T492] __x64_sys_read+0x7b/0x90 [ 41.160885][ T492] x64_sys_call+0x96d/0x9a0 [ 41.165389][ T492] do_syscall_64+0x4c/0xa0 [ 41.169883][ T492] ? clear_bhb_loop+0x50/0xa0 [ 41.174652][ T492] ? clear_bhb_loop+0x50/0xa0 [ 41.179486][ T492] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 41.185374][ T492] RIP: 0033:0x7fc4792d8e99 [ 41.190007][ 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 [ 41.211856][ T492] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 41.220485][ T492] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 41.228760][ T492] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 41.236992][ T492] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 41.245215][ T492] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 41.253406][ T492] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 41.261465][ T492] [ 41.317365][ T494] loop2: detected capacity change from 0 to 16 [ 41.329405][ T494] erofs: (device loop2): mounted with root inode @ nid 36. [ 41.337478][ T494] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 41.346647][ T494] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 41.356301][ T494] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 41.366018][ T494] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 41.375860][ T494] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 41.385637][ T494] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 41.396832][ T494] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 41.406218][ T494] BUG: scheduling while atomic: syz.2.23/494/0x00000002 [ 41.413626][ T494] Modules linked in: [ 41.417901][ T494] Preemption disabled at: [ 41.417908][ T494] [] z_erofs_reload_indexes+0x1cc/0x410 [ 41.429619][ T494] CPU: 1 PID: 494 Comm: syz.2.23 Tainted: G W syzkaller #0 [ 41.438135][ T494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 41.448420][ T494] Call Trace: [ 41.451696][ T494] [ 41.454618][ T494] __dump_stack+0x21/0x30 [ 41.458969][ T494] dump_stack_lvl+0x110/0x170 [ 41.463638][ T494] ? show_regs_print_info+0x20/0x20 [ 41.468964][ T494] ? z_erofs_reload_indexes+0x1cc/0x410 [ 41.474682][ T494] dump_stack+0x15/0x20 [ 41.478832][ T494] __schedule_bug+0x180/0x230 [ 41.483511][ T494] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 41.488983][ T494] ? page_cache_ra_unbounded+0x78c/0x960 [ 41.494837][ T494] __schedule+0xc21/0x14a0 [ 41.499444][ T494] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 41.506178][ T494] ? release_firmware_map_entry+0x190/0x190 [ 41.512514][ T494] ? __kasan_check_write+0x14/0x20 [ 41.517851][ T494] ? _raw_spin_lock_irq+0x95/0xf0 [ 41.523368][ T494] schedule+0x11e/0x1e0 [ 41.527519][ T494] io_schedule+0x84/0xe0 [ 41.531749][ T494] wait_on_page_bit_common+0x6f8/0x9d0 [ 41.537456][ T494] ? wait_on_page_bit+0x50/0x50 [ 41.542424][ T494] ? page_mapcount+0xf0/0xf0 [ 41.547336][ T494] ? down_read+0xab/0x100 [ 41.551926][ T494] ? __down_common+0x360/0x360 [ 41.556694][ T494] filemap_read+0xd8d/0x21e0 [ 41.561622][ T494] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 41.567675][ T494] ? avc_policy_seqno+0x1b/0x70 [ 41.572658][ T494] generic_file_read_iter+0xac/0x420 [ 41.577972][ T494] ? iov_iter_init+0xbc/0x180 [ 41.582725][ T494] vfs_read+0x6c0/0xc20 [ 41.587395][ T494] ? kernel_read+0x1f0/0x1f0 [ 41.592068][ T494] ? wait_for_completion_killable_timeout+0x10/0x10 [ 41.598656][ T494] ? __fget_files+0x2e1/0x340 [ 41.603401][ T494] ? __fdget_pos+0x2d2/0x380 [ 41.608554][ T494] ? ksys_read+0x70/0x260 [ 41.613834][ T494] ksys_read+0x14a/0x260 [ 41.618170][ T494] ? vfs_write+0xfd0/0xfd0 [ 41.624121][ T494] ? __kasan_check_write+0x14/0x20 [ 41.632195][ T494] ? switch_fpu_return+0x15d/0x2c0 [ 41.638389][ T494] __x64_sys_read+0x7b/0x90 [ 41.643146][ T494] x64_sys_call+0x96d/0x9a0 [ 41.648101][ T494] do_syscall_64+0x4c/0xa0 [ 41.652688][ T494] ? clear_bhb_loop+0x50/0xa0 [ 41.658320][ T494] ? clear_bhb_loop+0x50/0xa0 [ 41.664788][ T494] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 41.673020][ T494] RIP: 0033:0x7fc4792d8e99 [ 41.678845][ T494] 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 [ 41.699454][ T494] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 41.708868][ T494] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 41.717467][ T494] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 41.725652][ T494] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 41.735755][ T494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 41.745138][ T494] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 41.754465][ T494] [ 41.759657][ T494] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 41.774601][ T494] BUG: scheduling while atomic: syz.2.23/494/0x00000002 [ 41.783081][ T494] Modules linked in: [ 41.787539][ T494] Preemption disabled at: [ 41.787550][ T494] [] z_erofs_reload_indexes+0x30c/0x410 [ 41.799546][ T494] CPU: 1 PID: 494 Comm: syz.2.23 Tainted: G W syzkaller #0 [ 41.808366][ T494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 41.820096][ T494] Call Trace: [ 41.823659][ T494] [ 41.827839][ T494] __dump_stack+0x21/0x30 [ 41.832253][ T494] dump_stack_lvl+0x110/0x170 [ 41.836950][ T494] ? show_regs_print_info+0x20/0x20 [ 41.842365][ T494] ? z_erofs_reload_indexes+0x30c/0x410 [ 41.848191][ T494] dump_stack+0x15/0x20 [ 41.852336][ T494] __schedule_bug+0x180/0x230 [ 41.857043][ T494] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 41.862478][ T494] ? blk_try_enter_queue+0x165/0x350 [ 41.867785][ T494] __schedule+0xc21/0x14a0 [ 41.872296][ T494] ? release_firmware_map_entry+0x190/0x190 [ 41.878441][ T494] ? slab_post_alloc_hook+0x6d/0x2b0 [ 41.883718][ T494] schedule+0x11e/0x1e0 [ 41.887901][ T494] schedule_timeout+0xba/0x340 [ 41.892652][ T494] ? console_conditional_schedule+0x30/0x30 [ 41.898710][ T494] ? submit_bio_noacct+0x762/0x800 [ 41.903819][ T494] ? __kasan_check_write+0x14/0x20 [ 41.909102][ T494] ? _raw_spin_lock_irq+0x95/0xf0 [ 41.914128][ T494] ? _raw_spin_lock_irqsave+0x130/0x130 [ 41.919971][ T494] io_schedule_timeout+0x8d/0x100 [ 41.925010][ T494] wait_for_common_io+0x16f/0x2e0 [ 41.930497][ T494] ? wait_for_completion_io+0x20/0x20 [ 41.936061][ T494] ? submit_bio+0x367/0x620 [ 41.940929][ T494] ? submit_bio_noacct+0x800/0x800 [ 41.946209][ T494] wait_for_completion_io+0x13/0x20 [ 41.951572][ T494] z_erofs_runqueue+0x115d/0x11f0 [ 41.957004][ T494] ? xas_load+0x2ea/0x300 [ 41.961611][ T494] ? z_erofs_do_read_page+0x2250/0x2250 [ 41.967510][ T494] ? page_cache_prev_miss+0x290/0x290 [ 41.973054][ T494] ? mutex_unlock+0x8f/0x230 [ 41.977637][ T494] ? __mutex_lock_slowpath+0x10/0x10 [ 41.983414][ T494] z_erofs_readpage+0x25d/0x4d0 [ 41.988386][ T494] ? xas_start+0x31d/0x3e0 [ 41.992889][ T494] ? z_erofs_rcu_callback+0x170/0x170 [ 41.998250][ T494] ? wait_on_page_bit+0x50/0x50 [ 42.003526][ T494] ? down_read+0xab/0x100 [ 42.008289][ T494] ? __down_common+0x360/0x360 [ 42.013424][ T494] filemap_read_page+0xd3/0x330 [ 42.018268][ T494] filemap_read+0x142e/0x21e0 [ 42.022960][ T494] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 42.028947][ T494] ? avc_policy_seqno+0x1b/0x70 [ 42.033899][ T494] generic_file_read_iter+0xac/0x420 [ 42.039281][ T494] ? iov_iter_init+0xbc/0x180 [ 42.044041][ T494] vfs_read+0x6c0/0xc20 [ 42.048451][ T494] ? kernel_read+0x1f0/0x1f0 [ 42.053569][ T494] ? wait_for_completion_killable_timeout+0x10/0x10 [ 42.060196][ T494] ? __fget_files+0x2e1/0x340 [ 42.065633][ T494] ? __fdget_pos+0x2d2/0x380 [ 42.070563][ T494] ? ksys_read+0x70/0x260 [ 42.074972][ T494] ksys_read+0x14a/0x260 [ 42.080534][ T494] ? vfs_write+0xfd0/0xfd0 [ 42.085215][ T494] ? __kasan_check_write+0x14/0x20 [ 42.090712][ T494] ? switch_fpu_return+0x15d/0x2c0 [ 42.095830][ T494] __x64_sys_read+0x7b/0x90 [ 42.100607][ T494] x64_sys_call+0x96d/0x9a0 [ 42.105102][ T494] do_syscall_64+0x4c/0xa0 [ 42.109627][ T494] ? clear_bhb_loop+0x50/0xa0 [ 42.114307][ T494] ? clear_bhb_loop+0x50/0xa0 [ 42.119150][ T494] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 42.125211][ T494] RIP: 0033:0x7fc4792d8e99 [ 42.129709][ T494] 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 [ 42.149500][ T494] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 42.158042][ T494] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 42.166354][ T494] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 42.174525][ T494] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 42.182489][ T494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 42.190881][ T494] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 42.199302][ T494] [ 42.257587][ T496] loop2: detected capacity change from 0 to 16 [ 42.312742][ T496] erofs: (device loop2): mounted with root inode @ nid 36. [ 42.320536][ T496] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 42.330887][ T496] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 42.340187][ T496] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 42.350024][ T496] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 42.359402][ T496] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 42.369212][ T496] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 42.380210][ T496] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 42.390099][ T496] BUG: scheduling while atomic: syz.2.24/496/0x00000002 [ 42.397645][ T496] Modules linked in: [ 42.402383][ T496] Preemption disabled at: [ 42.402393][ T496] [] z_erofs_reload_indexes+0x1cc/0x410 [ 42.414335][ T496] CPU: 1 PID: 496 Comm: syz.2.24 Tainted: G W syzkaller #0 [ 42.424020][ T496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 42.434290][ T496] Call Trace: [ 42.437563][ T496] [ 42.440486][ T496] __dump_stack+0x21/0x30 [ 42.444817][ T496] dump_stack_lvl+0x110/0x170 [ 42.449687][ T496] ? show_regs_print_info+0x20/0x20 [ 42.454920][ T496] ? z_erofs_reload_indexes+0x1cc/0x410 [ 42.460655][ T496] dump_stack+0x15/0x20 [ 42.465014][ T496] __schedule_bug+0x180/0x230 [ 42.469817][ T496] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 42.475100][ T496] ? page_cache_ra_unbounded+0x78c/0x960 [ 42.480841][ T496] __schedule+0xc21/0x14a0 [ 42.485586][ T496] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 42.492573][ T496] ? release_firmware_map_entry+0x190/0x190 [ 42.498572][ T496] ? __kasan_check_write+0x14/0x20 [ 42.504253][ T496] ? _raw_spin_lock_irq+0x95/0xf0 [ 42.509270][ T496] schedule+0x11e/0x1e0 [ 42.513456][ T496] io_schedule+0x84/0xe0 [ 42.517801][ T496] wait_on_page_bit_common+0x6f8/0x9d0 [ 42.523850][ T496] ? wait_on_page_bit+0x50/0x50 [ 42.529474][ T496] ? page_mapcount+0xf0/0xf0 [ 42.534272][ T496] ? down_read+0xab/0x100 [ 42.538792][ T496] ? __down_common+0x360/0x360 [ 42.543929][ T496] filemap_read+0xd8d/0x21e0 [ 42.548731][ T496] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 42.554548][ T496] ? avc_policy_seqno+0x1b/0x70 [ 42.559536][ T496] generic_file_read_iter+0xac/0x420 [ 42.564931][ T496] ? iov_iter_init+0xbc/0x180 [ 42.569956][ T496] vfs_read+0x6c0/0xc20 [ 42.574120][ T496] ? kernel_read+0x1f0/0x1f0 [ 42.578893][ T496] ? wait_for_completion_killable_timeout+0x10/0x10 [ 42.585580][ T496] ? __fget_files+0x2e1/0x340 [ 42.590530][ T496] ? __fdget_pos+0x2d2/0x380 [ 42.595111][ T496] ? ksys_read+0x70/0x260 [ 42.599619][ T496] ksys_read+0x14a/0x260 [ 42.603948][ T496] ? vfs_write+0xfd0/0xfd0 [ 42.608462][ T496] ? __kasan_check_write+0x14/0x20 [ 42.613657][ T496] ? switch_fpu_return+0x15d/0x2c0 [ 42.618966][ T496] __x64_sys_read+0x7b/0x90 [ 42.623476][ T496] x64_sys_call+0x96d/0x9a0 [ 42.627994][ T496] do_syscall_64+0x4c/0xa0 [ 42.632771][ T496] ? clear_bhb_loop+0x50/0xa0 [ 42.637872][ T496] ? clear_bhb_loop+0x50/0xa0 [ 42.643127][ T496] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 42.649341][ T496] RIP: 0033:0x7fc4792d8e99 [ 42.653766][ T496] 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 [ 42.675081][ T496] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 42.683775][ T496] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 42.692245][ T496] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 42.700417][ T496] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 42.708385][ T496] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 42.716690][ T496] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 42.724669][ T496] [ 42.727858][ T496] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 42.738892][ T496] BUG: scheduling while atomic: syz.2.24/496/0x00000002 [ 42.746314][ T496] Modules linked in: [ 42.752154][ T496] Preemption disabled at: [ 42.752165][ T496] [] z_erofs_reload_indexes+0x30c/0x410 [ 42.765269][ T496] CPU: 1 PID: 496 Comm: syz.2.24 Tainted: G W syzkaller #0 [ 42.775864][ T496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 42.788608][ T496] Call Trace: [ 42.791895][ T496] [ 42.795034][ T496] __dump_stack+0x21/0x30 [ 42.799378][ T496] dump_stack_lvl+0x110/0x170 [ 42.804222][ T496] ? show_regs_print_info+0x20/0x20 [ 42.809660][ T496] ? z_erofs_reload_indexes+0x30c/0x410 [ 42.815313][ T496] dump_stack+0x15/0x20 [ 42.819768][ T496] __schedule_bug+0x180/0x230 [ 42.824613][ T496] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 42.830061][ T496] ? blk_try_enter_queue+0x165/0x350 [ 42.835685][ T496] __schedule+0xc21/0x14a0 [ 42.840682][ T496] ? release_firmware_map_entry+0x190/0x190 [ 42.846607][ T496] ? slab_post_alloc_hook+0x6d/0x2b0 [ 42.851920][ T496] schedule+0x11e/0x1e0 [ 42.856341][ T496] schedule_timeout+0xba/0x340 [ 42.861091][ T496] ? console_conditional_schedule+0x30/0x30 [ 42.867320][ T496] ? submit_bio_noacct+0x762/0x800 [ 42.872638][ T496] ? __kasan_check_write+0x14/0x20 [ 42.877921][ T496] ? _raw_spin_lock_irq+0x95/0xf0 [ 42.883333][ T496] ? _raw_spin_lock_irqsave+0x130/0x130 [ 42.889002][ T496] io_schedule_timeout+0x8d/0x100 [ 42.894510][ T496] wait_for_common_io+0x16f/0x2e0 [ 42.899560][ T496] ? wait_for_completion_io+0x20/0x20 [ 42.905011][ T496] ? submit_bio+0x367/0x620 [ 42.910170][ T496] ? submit_bio_noacct+0x800/0x800 [ 42.915480][ T496] wait_for_completion_io+0x13/0x20 [ 42.921078][ T496] z_erofs_runqueue+0x115d/0x11f0 [ 42.926115][ T496] ? xas_load+0x2ea/0x300 [ 42.930618][ T496] ? z_erofs_do_read_page+0x2250/0x2250 [ 42.936519][ T496] ? page_cache_prev_miss+0x290/0x290 [ 42.942338][ T496] ? mutex_unlock+0x8f/0x230 [ 42.946936][ T496] ? __mutex_lock_slowpath+0x10/0x10 [ 42.952214][ T496] z_erofs_readpage+0x25d/0x4d0 [ 42.957062][ T496] ? xas_start+0x31d/0x3e0 [ 42.962141][ T496] ? z_erofs_rcu_callback+0x170/0x170 [ 42.967640][ T496] ? wait_on_page_bit+0x50/0x50 [ 42.972729][ T496] ? down_read+0xab/0x100 [ 42.977223][ T496] ? __down_common+0x360/0x360 [ 42.981982][ T496] filemap_read_page+0xd3/0x330 [ 42.987357][ T496] filemap_read+0x142e/0x21e0 [ 42.992158][ T496] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 42.998017][ T496] ? avc_policy_seqno+0x1b/0x70 [ 43.002882][ T496] generic_file_read_iter+0xac/0x420 [ 43.008363][ T496] ? iov_iter_init+0xbc/0x180 [ 43.013380][ T496] vfs_read+0x6c0/0xc20 [ 43.017704][ T496] ? kernel_read+0x1f0/0x1f0 [ 43.022563][ T496] ? wait_for_completion_killable_timeout+0x10/0x10 [ 43.029626][ T496] ? __fget_files+0x2e1/0x340 [ 43.034388][ T496] ? __fdget_pos+0x2d2/0x380 [ 43.039348][ T496] ? ksys_read+0x70/0x260 [ 43.044099][ T496] ksys_read+0x14a/0x260 [ 43.048362][ T496] ? vfs_write+0xfd0/0xfd0 [ 43.052807][ T496] ? __kasan_check_write+0x14/0x20 [ 43.058376][ T496] ? switch_fpu_return+0x15d/0x2c0 [ 43.063948][ T496] __x64_sys_read+0x7b/0x90 [ 43.069121][ T496] x64_sys_call+0x96d/0x9a0 [ 43.073826][ T496] do_syscall_64+0x4c/0xa0 [ 43.079388][ T496] ? clear_bhb_loop+0x50/0xa0 [ 43.085202][ T496] ? clear_bhb_loop+0x50/0xa0 [ 43.090128][ T496] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 43.096752][ T496] RIP: 0033:0x7fc4792d8e99 [ 43.101371][ T496] 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 [ 43.121910][ T496] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 43.130589][ T496] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 43.138562][ T496] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 43.146683][ T496] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 43.154661][ T496] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.162635][ T496] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 43.170705][ T496] [ 43.227486][ T498] loop2: detected capacity change from 0 to 16 [ 43.265169][ T498] erofs: (device loop2): mounted with root inode @ nid 36. [ 43.273319][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 43.282995][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 43.292099][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 43.301583][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 43.310593][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 43.319657][ T498] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 43.330649][ T498] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 43.339778][ T498] BUG: scheduling while atomic: syz.2.25/498/0x00000002 [ 43.346982][ T498] Modules linked in: [ 43.350863][ T498] Preemption disabled at: [ 43.350870][ T498] [] z_erofs_reload_indexes+0x1cc/0x410 [ 43.362446][ T498] CPU: 0 PID: 498 Comm: syz.2.25 Tainted: G W syzkaller #0 [ 43.371180][ T498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 43.381329][ T498] Call Trace: [ 43.384627][ T498] [ 43.387549][ T498] __dump_stack+0x21/0x30 [ 43.391964][ T498] dump_stack_lvl+0x110/0x170 [ 43.396724][ T498] ? show_regs_print_info+0x20/0x20 [ 43.401998][ T498] ? z_erofs_reload_indexes+0x1cc/0x410 [ 43.407816][ T498] dump_stack+0x15/0x20 [ 43.412153][ T498] __schedule_bug+0x180/0x230 [ 43.416819][ T498] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 43.422112][ T498] ? page_cache_ra_unbounded+0x78c/0x960 [ 43.427737][ T498] __schedule+0xc21/0x14a0 [ 43.432264][ T498] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 43.438758][ T498] ? release_firmware_map_entry+0x190/0x190 [ 43.444649][ T498] ? __kasan_check_write+0x14/0x20 [ 43.449905][ T498] ? _raw_spin_lock_irq+0x95/0xf0 [ 43.455353][ T498] schedule+0x11e/0x1e0 [ 43.459727][ T498] io_schedule+0x84/0xe0 [ 43.463965][ T498] wait_on_page_bit_common+0x6f8/0x9d0 [ 43.469660][ T498] ? wait_on_page_bit+0x50/0x50 [ 43.474703][ T498] ? page_mapcount+0xf0/0xf0 [ 43.479291][ T498] ? down_read+0xab/0x100 [ 43.483791][ T498] ? __down_common+0x360/0x360 [ 43.488793][ T498] filemap_read+0xd8d/0x21e0 [ 43.493540][ T498] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 43.499471][ T498] ? avc_policy_seqno+0x1b/0x70 [ 43.504404][ T498] generic_file_read_iter+0xac/0x420 [ 43.509783][ T498] ? iov_iter_init+0xbc/0x180 [ 43.514451][ T498] vfs_read+0x6c0/0xc20 [ 43.518982][ T498] ? kernel_read+0x1f0/0x1f0 [ 43.523609][ T498] ? wait_for_completion_killable_timeout+0x10/0x10 [ 43.530385][ T498] ? __fget_files+0x2e1/0x340 [ 43.535135][ T498] ? __fdget_pos+0x2d2/0x380 [ 43.539856][ T498] ? ksys_read+0x70/0x260 [ 43.544352][ T498] ksys_read+0x14a/0x260 [ 43.548847][ T498] ? vfs_write+0xfd0/0xfd0 [ 43.553285][ T498] ? __kasan_check_write+0x14/0x20 [ 43.558473][ T498] ? switch_fpu_return+0x15d/0x2c0 [ 43.563600][ T498] __x64_sys_read+0x7b/0x90 [ 43.568096][ T498] x64_sys_call+0x96d/0x9a0 [ 43.572586][ T498] do_syscall_64+0x4c/0xa0 [ 43.577060][ T498] ? clear_bhb_loop+0x50/0xa0 [ 43.582274][ T498] ? clear_bhb_loop+0x50/0xa0 [ 43.586935][ T498] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 43.593091][ T498] RIP: 0033:0x7fc4792d8e99 [ 43.597488][ 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 [ 43.617648][ T498] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 43.626232][ T498] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 43.634367][ T498] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 43.642339][ T498] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 43.650315][ T498] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 43.658799][ T498] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 43.667162][ T498] [ 43.671240][ T498] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 43.682529][ T498] BUG: scheduling while atomic: syz.2.25/498/0x00000002 [ 43.689842][ T498] Modules linked in: [ 43.693836][ T498] Preemption disabled at: [ 43.693846][ T498] [] z_erofs_reload_indexes+0x30c/0x410 [ 43.705531][ T498] CPU: 0 PID: 498 Comm: syz.2.25 Tainted: G W syzkaller #0 [ 43.714387][ T498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 43.724561][ T498] Call Trace: [ 43.727852][ T498] [ 43.730893][ T498] __dump_stack+0x21/0x30 [ 43.735221][ T498] dump_stack_lvl+0x110/0x170 [ 43.740148][ T498] ? show_regs_print_info+0x20/0x20 [ 43.745516][ T498] ? z_erofs_reload_indexes+0x30c/0x410 [ 43.751880][ T498] dump_stack+0x15/0x20 [ 43.756463][ T498] __schedule_bug+0x180/0x230 [ 43.761382][ T498] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 43.766901][ T498] ? blk_try_enter_queue+0x165/0x350 [ 43.772238][ T498] __schedule+0xc21/0x14a0 [ 43.776665][ T498] ? release_firmware_map_entry+0x190/0x190 [ 43.783025][ T498] ? slab_post_alloc_hook+0x6d/0x2b0 [ 43.788311][ T498] schedule+0x11e/0x1e0 [ 43.792502][ T498] schedule_timeout+0xba/0x340 [ 43.797253][ T498] ? console_conditional_schedule+0x30/0x30 [ 43.803865][ T498] ? submit_bio_noacct+0x762/0x800 [ 43.808998][ T498] ? __kasan_check_write+0x14/0x20 [ 43.814474][ T498] ? _raw_spin_lock_irq+0x95/0xf0 [ 43.819869][ T498] ? _raw_spin_lock_irqsave+0x130/0x130 [ 43.825423][ T498] io_schedule_timeout+0x8d/0x100 [ 43.830442][ T498] wait_for_common_io+0x16f/0x2e0 [ 43.835458][ T498] ? wait_for_completion_io+0x20/0x20 [ 43.841008][ T498] ? submit_bio+0x367/0x620 [ 43.845725][ T498] ? submit_bio_noacct+0x800/0x800 [ 43.850937][ T498] wait_for_completion_io+0x13/0x20 [ 43.856301][ T498] z_erofs_runqueue+0x115d/0x11f0 [ 43.861330][ T498] ? xas_load+0x2ea/0x300 [ 43.865646][ T498] ? z_erofs_do_read_page+0x2250/0x2250 [ 43.871288][ T498] ? page_cache_prev_miss+0x290/0x290 [ 43.876771][ T498] ? mutex_unlock+0x8f/0x230 [ 43.881523][ T498] ? __mutex_lock_slowpath+0x10/0x10 [ 43.886870][ T498] z_erofs_readpage+0x25d/0x4d0 [ 43.891741][ T498] ? xas_start+0x31d/0x3e0 [ 43.896279][ T498] ? z_erofs_rcu_callback+0x170/0x170 [ 43.901954][ T498] ? wait_on_page_bit+0x50/0x50 [ 43.906953][ T498] ? down_read+0xab/0x100 [ 43.911375][ T498] ? __down_common+0x360/0x360 [ 43.916124][ T498] filemap_read_page+0xd3/0x330 [ 43.921311][ T498] filemap_read+0x142e/0x21e0 [ 43.926409][ T498] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 43.932305][ T498] ? avc_policy_seqno+0x1b/0x70 [ 43.937268][ T498] generic_file_read_iter+0xac/0x420 [ 43.942559][ T498] ? iov_iter_init+0xbc/0x180 [ 43.947230][ T498] vfs_read+0x6c0/0xc20 [ 43.951373][ T498] ? kernel_read+0x1f0/0x1f0 [ 43.956126][ T498] ? wait_for_completion_killable_timeout+0x10/0x10 [ 43.962795][ T498] ? __fget_files+0x2e1/0x340 [ 43.967474][ T498] ? __fdget_pos+0x2d2/0x380 [ 43.972055][ T498] ? ksys_read+0x70/0x260 [ 43.976394][ T498] ksys_read+0x14a/0x260 [ 43.980834][ T498] ? vfs_write+0xfd0/0xfd0 [ 43.985594][ T498] ? __kasan_check_write+0x14/0x20 [ 43.990722][ T498] ? switch_fpu_return+0x15d/0x2c0 [ 43.995833][ T498] __x64_sys_read+0x7b/0x90 [ 44.000349][ T498] x64_sys_call+0x96d/0x9a0 [ 44.004848][ T498] do_syscall_64+0x4c/0xa0 [ 44.009283][ T498] ? clear_bhb_loop+0x50/0xa0 [ 44.013954][ T498] ? clear_bhb_loop+0x50/0xa0 [ 44.018639][ T498] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 44.024519][ T498] RIP: 0033:0x7fc4792d8e99 [ 44.029069][ 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 [ 44.049022][ T498] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 44.057449][ T498] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 44.065590][ T498] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 44.073987][ T498] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 44.082211][ T498] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 44.090258][ T498] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 44.098643][ T498] [ 44.156591][ T500] loop2: detected capacity change from 0 to 16 [ 44.163478][ T500] erofs: (device loop2): mounted with root inode @ nid 36. [ 44.171436][ T500] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 44.180643][ T500] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 44.190568][ T500] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 44.199833][ T500] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 44.209081][ T500] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 44.218180][ T500] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 44.228780][ T500] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 44.238055][ T500] BUG: scheduling while atomic: syz.2.26/500/0x00000002 [ 44.245092][ T500] Modules linked in: [ 44.249144][ T500] Preemption disabled at: [ 44.249152][ T500] [] z_erofs_reload_indexes+0x1cc/0x410 [ 44.261099][ T500] CPU: 0 PID: 500 Comm: syz.2.26 Tainted: G W syzkaller #0 [ 44.269868][ T500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 44.281012][ T500] Call Trace: [ 44.284487][ T500] [ 44.287617][ T500] __dump_stack+0x21/0x30 [ 44.292423][ T500] dump_stack_lvl+0x110/0x170 [ 44.297574][ T500] ? show_regs_print_info+0x20/0x20 [ 44.303103][ T500] ? z_erofs_reload_indexes+0x1cc/0x410 [ 44.308848][ T500] dump_stack+0x15/0x20 [ 44.313010][ T500] __schedule_bug+0x180/0x230 [ 44.317678][ T500] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 44.322961][ T500] ? page_cache_ra_unbounded+0x78c/0x960 [ 44.328602][ T500] __schedule+0xc21/0x14a0 [ 44.333115][ T500] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 44.340109][ T500] ? release_firmware_map_entry+0x190/0x190 [ 44.346545][ T500] ? __kasan_check_write+0x14/0x20 [ 44.351661][ T500] ? _raw_spin_lock_irq+0x95/0xf0 [ 44.356763][ T500] schedule+0x11e/0x1e0 [ 44.360914][ T500] io_schedule+0x84/0xe0 [ 44.365231][ T500] wait_on_page_bit_common+0x6f8/0x9d0 [ 44.370774][ T500] ? wait_on_page_bit+0x50/0x50 [ 44.376041][ T500] ? page_mapcount+0xf0/0xf0 [ 44.381099][ T500] ? down_read+0xab/0x100 [ 44.385610][ T500] ? __down_common+0x360/0x360 [ 44.390611][ T500] filemap_read+0xd8d/0x21e0 [ 44.395303][ T500] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 44.401331][ T500] ? avc_policy_seqno+0x1b/0x70 [ 44.406293][ T500] generic_file_read_iter+0xac/0x420 [ 44.411699][ T500] ? iov_iter_init+0xbc/0x180 [ 44.416392][ T500] vfs_read+0x6c0/0xc20 [ 44.420561][ T500] ? kernel_read+0x1f0/0x1f0 [ 44.425441][ T500] ? wait_for_completion_killable_timeout+0x10/0x10 [ 44.432105][ T500] ? __fget_files+0x2e1/0x340 [ 44.437353][ T500] ? __fdget_pos+0x2d2/0x380 [ 44.442395][ T500] ? ksys_read+0x70/0x260 [ 44.446979][ T500] ksys_read+0x14a/0x260 [ 44.451396][ T500] ? vfs_write+0xfd0/0xfd0 [ 44.455930][ T500] ? __kasan_check_write+0x14/0x20 [ 44.461056][ T500] ? switch_fpu_return+0x15d/0x2c0 [ 44.466163][ T500] __x64_sys_read+0x7b/0x90 [ 44.471042][ T500] x64_sys_call+0x96d/0x9a0 [ 44.475805][ T500] do_syscall_64+0x4c/0xa0 [ 44.480394][ T500] ? clear_bhb_loop+0x50/0xa0 [ 44.485076][ T500] ? clear_bhb_loop+0x50/0xa0 [ 44.489741][ T500] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 44.495636][ T500] RIP: 0033:0x7fc4792d8e99 [ 44.500590][ T500] 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 [ 44.520764][ T500] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 44.529210][ T500] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 44.537441][ T500] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 44.545406][ T500] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 44.554083][ T500] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 44.562050][ T500] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 44.570259][ T500] [ 44.573367][ T500] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 44.584659][ T500] BUG: scheduling while atomic: syz.2.26/500/0x00000002 [ 44.591622][ T500] Modules linked in: [ 44.595633][ T500] Preemption disabled at: [ 44.595641][ T500] [] z_erofs_reload_indexes+0x30c/0x410 [ 44.608008][ T500] CPU: 0 PID: 500 Comm: syz.2.26 Tainted: G W syzkaller #0 [ 44.618263][ T500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 44.630561][ T500] Call Trace: [ 44.634882][ T500] [ 44.638288][ T500] __dump_stack+0x21/0x30 [ 44.643159][ T500] dump_stack_lvl+0x110/0x170 [ 44.648681][ T500] ? show_regs_print_info+0x20/0x20 [ 44.656407][ T500] ? z_erofs_reload_indexes+0x30c/0x410 [ 44.664883][ T500] dump_stack+0x15/0x20 [ 44.671642][ T500] __schedule_bug+0x180/0x230 [ 44.677842][ T500] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 44.684932][ T500] ? blk_try_enter_queue+0x165/0x350 [ 44.690601][ T500] __schedule+0xc21/0x14a0 [ 44.695552][ T500] ? release_firmware_map_entry+0x190/0x190 [ 44.702564][ T500] ? slab_post_alloc_hook+0x6d/0x2b0 [ 44.709975][ T500] schedule+0x11e/0x1e0 [ 44.716003][ T500] schedule_timeout+0xba/0x340 [ 44.721168][ T500] ? console_conditional_schedule+0x30/0x30 [ 44.727516][ T500] ? submit_bio_noacct+0x762/0x800 [ 44.733295][ T500] ? __kasan_check_write+0x14/0x20 [ 44.738499][ T500] ? _raw_spin_lock_irq+0x95/0xf0 [ 44.743845][ T500] ? _raw_spin_lock_irqsave+0x130/0x130 [ 44.750648][ T500] io_schedule_timeout+0x8d/0x100 [ 44.756521][ T500] wait_for_common_io+0x16f/0x2e0 [ 44.762089][ T500] ? wait_for_completion_io+0x20/0x20 [ 44.767729][ T500] ? submit_bio+0x367/0x620 [ 44.772778][ T500] ? submit_bio_noacct+0x800/0x800 [ 44.778555][ T500] wait_for_completion_io+0x13/0x20 [ 44.783754][ T500] z_erofs_runqueue+0x115d/0x11f0 [ 44.788772][ T500] ? xas_load+0x2ea/0x300 [ 44.793104][ T500] ? z_erofs_do_read_page+0x2250/0x2250 [ 44.798646][ T500] ? page_cache_prev_miss+0x290/0x290 [ 44.804174][ T500] ? mutex_unlock+0x8f/0x230 [ 44.808852][ T500] ? __mutex_lock_slowpath+0x10/0x10 [ 44.814257][ T500] z_erofs_readpage+0x25d/0x4d0 [ 44.819300][ T500] ? xas_start+0x31d/0x3e0 [ 44.824534][ T500] ? z_erofs_rcu_callback+0x170/0x170 [ 44.830238][ T500] ? wait_on_page_bit+0x50/0x50 [ 44.835532][ T500] ? down_read+0xab/0x100 [ 44.839941][ T500] ? __down_common+0x360/0x360 [ 44.844693][ T500] filemap_read_page+0xd3/0x330 [ 44.850129][ T500] filemap_read+0x142e/0x21e0 [ 44.854908][ T500] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 44.860718][ T500] ? avc_policy_seqno+0x1b/0x70 [ 44.865576][ T500] generic_file_read_iter+0xac/0x420 [ 44.870849][ T500] ? iov_iter_init+0xbc/0x180 [ 44.875693][ T500] vfs_read+0x6c0/0xc20 [ 44.880186][ T500] ? kernel_read+0x1f0/0x1f0 [ 44.884860][ T500] ? wait_for_completion_killable_timeout+0x10/0x10 [ 44.891680][ T500] ? __fget_files+0x2e1/0x340 [ 44.896553][ T500] ? __fdget_pos+0x2d2/0x380 [ 44.901658][ T500] ? ksys_read+0x70/0x260 [ 44.906118][ T500] ksys_read+0x14a/0x260 [ 44.910435][ T500] ? vfs_write+0xfd0/0xfd0 [ 44.914921][ T500] ? __kasan_check_write+0x14/0x20 [ 44.920306][ T500] ? switch_fpu_return+0x15d/0x2c0 [ 44.925606][ T500] __x64_sys_read+0x7b/0x90 [ 44.930853][ T500] x64_sys_call+0x96d/0x9a0 [ 44.935453][ T500] do_syscall_64+0x4c/0xa0 [ 44.940480][ T500] ? clear_bhb_loop+0x50/0xa0 [ 44.945269][ T500] ? clear_bhb_loop+0x50/0xa0 [ 44.949933][ T500] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 44.955812][ T500] RIP: 0033:0x7fc4792d8e99 [ 44.960450][ T500] 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 [ 44.980742][ T500] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 44.989277][ T500] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 44.997330][ T500] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 45.005935][ T500] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 45.013990][ T500] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 45.021976][ T500] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 45.029949][ T500] [ 45.086744][ T502] loop2: detected capacity change from 0 to 16 [ 45.094349][ T502] erofs: (device loop2): mounted with root inode @ nid 36. [ 45.102579][ T502] erofs: (device loop2): z_erofs_readahead: readahead error at page 6 @ nid 89 [ 45.111849][ T502] erofs: (device loop2): z_erofs_readahead: readahead error at page 5 @ nid 89 [ 45.121234][ T502] erofs: (device loop2): z_erofs_readahead: readahead error at page 4 @ nid 89 [ 45.130759][ T502] erofs: (device loop2): z_erofs_readahead: readahead error at page 3 @ nid 89 [ 45.140712][ T502] erofs: (device loop2): z_erofs_readahead: readahead error at page 2 @ nid 89 [ 45.150132][ T502] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 45.161084][ T502] erofs: (device loop2): z_erofs_readahead: readahead error at page 1 @ nid 89 [ 45.170230][ T502] BUG: scheduling while atomic: syz.2.27/502/0x00000002 [ 45.177316][ T502] Modules linked in: [ 45.181301][ T502] Preemption disabled at: [ 45.181308][ T502] [] z_erofs_reload_indexes+0x1cc/0x410 [ 45.192991][ T502] CPU: 1 PID: 502 Comm: syz.2.27 Tainted: G W syzkaller #0 [ 45.201687][ T502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 45.212003][ T502] Call Trace: [ 45.215270][ T502] [ 45.218269][ T502] __dump_stack+0x21/0x30 [ 45.222583][ T502] dump_stack_lvl+0x110/0x170 [ 45.227260][ T502] ? show_regs_print_info+0x20/0x20 [ 45.232451][ T502] ? z_erofs_reload_indexes+0x1cc/0x410 [ 45.237986][ T502] dump_stack+0x15/0x20 [ 45.242140][ T502] __schedule_bug+0x180/0x230 [ 45.246862][ T502] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 45.252356][ T502] ? page_cache_ra_unbounded+0x78c/0x960 [ 45.258098][ T502] __schedule+0xc21/0x14a0 [ 45.262612][ T502] ? read_cache_pages_invalidate_pages+0x1c0/0x1c0 [ 45.269473][ T502] ? release_firmware_map_entry+0x190/0x190 [ 45.275477][ T502] ? __kasan_check_write+0x14/0x20 [ 45.281158][ T502] ? _raw_spin_lock_irq+0x95/0xf0 [ 45.286181][ T502] schedule+0x11e/0x1e0 [ 45.290537][ T502] io_schedule+0x84/0xe0 [ 45.294784][ T502] wait_on_page_bit_common+0x6f8/0x9d0 [ 45.300415][ T502] ? wait_on_page_bit+0x50/0x50 [ 45.305268][ T502] ? page_mapcount+0xf0/0xf0 [ 45.309872][ T502] ? down_read+0xab/0x100 [ 45.314387][ T502] ? __down_common+0x360/0x360 [ 45.319326][ T502] filemap_read+0xd8d/0x21e0 [ 45.324075][ T502] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 45.329805][ T502] ? avc_policy_seqno+0x1b/0x70 [ 45.334670][ T502] generic_file_read_iter+0xac/0x420 [ 45.339959][ T502] ? iov_iter_init+0xbc/0x180 [ 45.344661][ T502] vfs_read+0x6c0/0xc20 [ 45.348889][ T502] ? kernel_read+0x1f0/0x1f0 [ 45.353625][ T502] ? wait_for_completion_killable_timeout+0x10/0x10 [ 45.360323][ T502] ? __fget_files+0x2e1/0x340 [ 45.365024][ T502] ? __fdget_pos+0x2d2/0x380 [ 45.369692][ T502] ? ksys_read+0x70/0x260 [ 45.374098][ T502] ksys_read+0x14a/0x260 [ 45.378689][ T502] ? vfs_write+0xfd0/0xfd0 [ 45.383468][ T502] ? __kasan_check_write+0x14/0x20 [ 45.388945][ T502] ? switch_fpu_return+0x15d/0x2c0 [ 45.394367][ T502] __x64_sys_read+0x7b/0x90 [ 45.398894][ T502] x64_sys_call+0x96d/0x9a0 [ 45.403427][ T502] do_syscall_64+0x4c/0xa0 [ 45.407852][ T502] ? clear_bhb_loop+0x50/0xa0 [ 45.412797][ T502] ? clear_bhb_loop+0x50/0xa0 [ 45.417563][ T502] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 45.423553][ T502] RIP: 0033:0x7fc4792d8e99 [ 45.428117][ T502] 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 [ 45.448647][ T502] RSP: 002b:00007fc47913a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 45.458142][ T502] RAX: ffffffffffffffda RBX: 00007fc479560fa0 RCX: 00007fc4792d8e99 [ 45.468361][ T502] RDX: 0000000000002020 RSI: 0000200000000940 RDI: 0000000000000004 [ 45.477113][ T502] RBP: 00007fc47936eeaf R08: 0000000000000000 R09: 0000000000000000 [ 45.485416][ T502] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 45.493471][ T502] R13: 00007fc479561038 R14: 00007fc479560fa0 R15: 00007ffee5e7b3a8 [ 45.501727][ T502] [ 45.504917][ T502] erofs: (device loop2): z_erofs_get_extent_compressedlen: cannot found CBLKCNT @ lcn 1 of nid 89 [ 45.516247][ T502] BUG: scheduling while atomic: syz.2.27/502/0x00000002 [ 45.523657][ T502] Modules linked in: [ 45.527545][ T502] Preemption disabled at: [ 45.527551][ T502] [] z_erofs_reload_indexes+0x30c/0x410 [ 45.539037][ T502] CPU: 1 PID: 502 Comm: syz.2.27 Tainted: G W syzkaller #0 [ 45.547818][ T502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 45.557866][ T502] Call Trace: [ 45.561239][ T502] [ 45.564162][ T502] __dump_stack+0x21/0x30 [ 45.568794][ T502] dump_stack_lvl+0x110/0x170 [ 45.573585][ T502] ? show_regs_print_info+0x20/0x20 [ 45.578978][ T502] ? z_erofs_reload_indexes+0x30c/0x410 [ 45.584750][ T502] dump_stack+0x15/0x20 [ 45.588939][ T502] __schedule_bug+0x180/0x230 [ 45.593811][ T502] ? ttwu_queue_wakelist+0x4a0/0x4a0 [ 45.599194][ T502] ? blk_try_enter_queue+0x165/0x350 [ 45.604501][ T502] __schedule+0xc21/0x14a0 [ 45.608905][ T502] ? release_firmware_map_entry+0x190/0x190 [ 45.615047][ T502] ? slab_post_alloc_hook+0x6d/0x2b0 [ 45.620619][ T502] schedule+0x11e/0x1e0 [ 45.624790][ T502] schedule_timeout+0xba/0x340 [ 45.629555][ T502] ? console_conditional_schedule+0x30/0x30 [ 45.635610][ T502] ? submit_bio_noacct+0x762/0x800 [ 45.640709][ T502] ? __kasan_check_write+0x14/0x20 [ 45.645985][ T502] ? _raw_spin_lock_irq+0x95/0xf0 [ 45.651102][ T502] ? _raw_spin_lock_irqsave+0x130/0x130 [ 45.656782][ T502] io_schedule_timeout+0x8d/0x100 [ 45.661803][ T502] wait_for_common_io+0x16f/0x2e0 [ 45.666924][ T502] ? wait_for_completion_io+0x20/0x20 [ 45.672733][ T502] ? submit_bio+0x367/0x620 [ 45.677458][ T502] ? submit_bio_noacct+0x800/0x800 [ 45.682651][ T502] wait_for_completion_io+0x13/0x20 [ 45.687839][ T502] z_erofs_runqueue+0x115d/0x11f0 [ 45.693050][ T502] ? xas_load+0x2ea/0x300 [ 45.697555][ T502] ? z_erofs_do_read_page+0x2250/0x2250 [ 45.703283][ T502] ? page_cache_prev_miss+0x290/0x290 [ 45.708849][ T502] ? mutex_unlock+0x8f/0x230 [ 45.713444][ T502] ? __mutex_lock_slowpath+0x10/0x10 [ 45.718719][ T502] z_erofs_readpage+0x25d/0x4d0 [ 45.723942][ T502] ? xas_start+0x31d/0x3e0 [ 45.728780][ T502] ? z_erofs_rcu_callback+0x170/0x170 [ 45.734272][ T502] ? wait_on_page_bit+0x50/0x50 [ 45.739398][ T502] ? down_read+0xab/0x100 [ 45.743821][ T502] ? __down_common+0x360/0x360 [ 45.748583][ T502] filemap_read_page+0xd3/0x330 [ 45.754539][ T502] filemap_read+0x142e/0x21e0 [ 45.759659][ T502] ? find_get_pages_range_tag+0x2e0/0x2e0 [ 45.766255][ T502] ? avc_policy_seqno+0x1b/0x70 [ 45.771920][ T502] generic_file_read_iter+0xac/0x420 [ 45.777758][ T502] ? iov_iter_init+0xbc/0x180 [ 45.782954][ T502] vfs_read+0x6c0/0xc20 [ 45.787285][ T502] ? kernel_read+0x1f0/0x1f0 [ 45.791890][ T502] ? wait_for_completion_killable_timeout+0x10/0x10 [ 45.798492][ T502] ? __fget_files+0x2e1/0x340 [ 45.803182][ T502] ? __fdget_pos+0x2d2/0x380 [ 45.807862][ T502] ? ksys_read+0x70/0x260 [ 45.812180][ T502] ksys_read+0x14a/0x260 [ 45.816575][ T502] ? vfs_write+0xfd0/0xfd0 [ 45.820994][ T502] ? __kasan_check_write+0x14/0x20 [ 45.826396][ T502] ? switch_fpu_return+0x15d/0x2c0 [ 45.831514][ T502] __x64_sys_read+0x7b/0x90 [ 45.836009][ T502] x64_sys_call+0x96d/0x9a0 [ 45.840691][ T502] do_syscall_64+0x4c/0xa0 [ 45.845099][ T502] ? clear_bhb_loop+0x50/0xa0 [ 45.849897][ T502] ? clear_bhb_loop+0x50/0xa0 [ 45.854581][ T502] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 45.860734][ T502] RIP: 0033:0x7fc4792d8e99 [ 45.865511][ T502] 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