[ 32.774736][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 32.776372][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 32.777918][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 33.135711][ T795] device bridge_slave_1 left promiscuous mode [ 33.136673][ T795] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.175666][ T795] device bridge_slave_0 left promiscuous mode [ 33.176539][ T795] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.196144][ T795] device veth0_macvtap left promiscuous mode [ 33.197107][ T795] device veth1_vlan left promiscuous mode [ 33.197997][ T795] device veth0_vlan left promiscuous mode Warning: Permanently added '10.128.1.83' (ED25519) to the list of known hosts. 2026/10/15 05:01:30 parsed 1 programs 2026/10/15 05:01:30 serving rpc on tcp://36229 Setting up swapspace version 1, size = 127995904 bytes [ 42.471142][ T2459] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 42.884752][ T2513] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.886572][ T2513] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.887821][ T2513] device bridge_slave_0 entered promiscuous mode [ 42.889011][ T2513] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.890155][ T2513] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.891307][ T2513] device bridge_slave_1 entered promiscuous mode [ 42.931286][ T2513] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.932506][ T2513] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.933669][ T2513] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.934785][ T2513] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.037008][ T795] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.038371][ T795] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.039529][ T795] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.049300][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.050714][ T793] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.051917][ T793] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.053268][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.054662][ T793] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.055888][ T793] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.057929][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.059337][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.144732][ T795] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.155828][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.157109][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.158296][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.159574][ T2513] device veth0_vlan entered promiscuous mode [ 43.160725][ T2513] device veth1_vlan entered promiscuous mode [ 43.181038][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 43.182305][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 43.183582][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 43.184929][ T2513] device veth0_macvtap entered promiscuous mode [ 43.196112][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 43.197525][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 43.198817][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 43.385771][ T795] device bridge_slave_1 left promiscuous mode [ 43.386787][ T795] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.415653][ T795] device bridge_slave_0 left promiscuous mode [ 43.416726][ T795] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.445981][ T795] device veth0_macvtap left promiscuous mode [ 43.447044][ T795] device veth1_vlan left promiscuous mode [ 43.448033][ T795] device veth0_vlan left promiscuous mode 2026/10/15 05:01:34 executed programs: 0 [ 46.383488][ T2776] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.384750][ T2776] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.386446][ T2776] device bridge_slave_0 entered promiscuous mode [ 46.387626][ T2776] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.388768][ T2776] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.389925][ T2776] device bridge_slave_1 entered promiscuous mode [ 46.428435][ T2776] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.429677][ T2776] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.430953][ T2776] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.432136][ T2776] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.532391][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.533741][ T11] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.534978][ T11] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.543678][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.545051][ T793] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.546306][ T793] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.548389][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.549788][ T11] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.550946][ T11] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.552117][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.553541][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.640253][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.649816][ T795] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.651219][ T795] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.652455][ T795] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.653772][ T2776] device veth0_vlan entered promiscuous mode [ 46.654986][ T2776] device veth1_vlan entered promiscuous mode [ 46.676242][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.677602][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.678875][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.680242][ T2776] device veth0_macvtap entered promiscuous mode [ 46.691005][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.692512][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.693837][ T793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.783928][ T3004] loop2: detected capacity change from 0 to 512 [ 46.785213][ T3004] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 46.786590][ T3004] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 46.787880][ T3004] ext2 filesystem being mounted at /0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.791847][ T3004] ------------[ cut here ]------------ [ 46.792798][ T3004] block_group >= groups_count - block_group = 7, groups_count = 1 [ 46.792831][ T3004] WARNING: CPU: 0 PID: 3004 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 46.795616][ T3004] Modules linked in: [ 46.796336][ T3004] CPU: 0 PID: 3004 Comm: syz.2.17 Not tainted syzkaller #0 [ 46.797694][ T3004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.799576][ T3004] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 46.800949][ T3004] pc : ext2_new_blocks+0x418/0x564 [ 46.801844][ T3004] lr : ext2_new_blocks+0x418/0x564 [ 46.802738][ T3004] sp : ffff80001280b8f0 [ 46.803468][ T3004] x29: ffff80001280b940 x28: 0000000000010000 x27: 0000000000000008 [ 46.804890][ T3004] x26: ffff0000d41a6400 x25: 0000000000010000 x24: ffff80001280b9f4 [ 46.806319][ T3004] x23: ffff0000c9dd8000 x22: 0000000000000000 x21: ffff80001280b9f8 [ 46.807747][ T3004] x20: ffff0000c4292c00 x19: ffff0000c8e78718 x18: 000000000007fc00 [ 46.809212][ T3004] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000126 [ 46.810625][ T3004] x14: 00000000000f9b5d x13: 00000000023635de x12: ffff80000e90c000 [ 46.812074][ T3004] x11: 0000000000000003 x10: 00000000ffffffff x9 : 9fb4704f66972d00 [ 46.813524][ T3004] x8 : 9fb4704f66972d00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 46.814976][ T3004] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 46.816431][ T3004] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 46.817923][ T3004] Call trace: [ 46.818512][ T3004] ext2_new_blocks+0x418/0x564 [ 46.819368][ T3004] ext2_get_blocks+0x4b4/0x9b0 [ 46.820225][ T3004] ext2_get_block+0x58/0x158 [ 46.821046][ T3004] __block_write_begin_int+0x10c/0x6f0 [ 46.822038][ T3004] block_write_begin+0x5c/0xa4 [ 46.822904][ T3004] ext2_write_begin+0x40/0x6c [ 46.823749][ T3004] generic_perform_write+0x80/0x1e4 [ 46.824683][ T3004] __generic_file_write_iter+0x7c/0xc0 [ 46.825680][ T3004] generic_file_write_iter+0x50/0xd4 [ 46.826651][ T3004] ext2_file_write_iter+0x10/0x1c [ 46.827553][ T3004] vfs_write+0x1ac/0x2c4 [ 46.828300][ T3004] __arm64_sys_pwrite64+0x84/0xc8 [ 46.829207][ T3004] invoke_syscall+0x40/0xdc [ 46.830012][ T3004] el0_svc_common+0xb0/0xe8 [ 46.830832][ T3004] do_el0_svc+0x24/0x80 [ 46.831554][ T3004] el0_svc+0x34/0xd4 [ 46.832239][ T3004] el0t_64_sync_handler+0x84/0xf0 [ 46.833146][ T3004] el0t_64_sync+0x18c/0x190 [ 46.833956][ T3004] ---[ end trace 0000000000000000 ]--- [ 46.835261][ T3004] ------------[ cut here ]------------ [ 46.836248][ T3004] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 46.836273][ T3004] WARNING: CPU: 0 PID: 3004 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 46.838965][ T3004] Modules linked in: [ 46.839549][ T3004] CPU: 0 PID: 3004 Comm: syz.2.17 Tainted: G W syzkaller #0 [ 46.840944][ T3004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.842671][ T3004] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 46.844069][ T3004] pc : read_block_bitmap+0xec/0x224 [ 46.845038][ T3004] lr : read_block_bitmap+0xe8/0x224 [ 46.845983][ T3004] sp : ffff80001280ba50 [ 46.846723][ T3004] x29: ffff80001280ba50 x28: ffff0000c575d400 x27: 0000000000000000 [ 46.848140][ T3004] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 46.849555][ T3004] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 46.850993][ T3004] x20: 0000000000000000 x19: ffff0000c9dd8000 x18: 0000000000002000 [ 46.852458][ T3004] x17: 0000000000000001 x16: 0000000000000000 x15: 000000000000009a [ 46.853921][ T3004] x14: 00000000000fc77b x13: 000000000298979b x12: ffff80000e90c000 [ 46.855344][ T3004] x11: 0000000000000004 x10: 00000000ffffffff x9 : 9fb4704f66972d00 [ 46.856793][ T3004] x8 : 9fb4704f66972d00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 46.858244][ T3004] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 46.859716][ T3004] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 46.861150][ T3004] Call trace: [ 46.861722][ T3004] read_block_bitmap+0xec/0x224 [ 46.862599][ T3004] ext2_free_blocks+0x104/0x368 [ 46.863467][ T3004] __ext2_truncate_blocks+0xb8/0x550 [ 46.864392][ T3004] ext2_write_failed+0xa4/0xc0 [ 46.865250][ T3004] ext2_write_begin+0x54/0x6c [ 46.866080][ T3004] generic_perform_write+0x80/0x1e4 [ 46.867011][ T3004] __generic_file_write_iter+0x7c/0xc0 [ 46.867995][ T3004] generic_file_write_iter+0x50/0xd4 [ 46.869031][ T3004] ext2_file_write_iter+0x10/0x1c [ 46.869945][ T3004] vfs_write+0x1ac/0x2c4 [ 46.870711][ T3004] __arm64_sys_pwrite64+0x84/0xc8 [ 46.871632][ T3004] invoke_syscall+0x40/0xdc [ 46.872449][ T3004] el0_svc_common+0xb0/0xe8 [ 46.873252][ T3004] do_el0_svc+0x24/0x80 [ 46.874013][ T3004] el0_svc+0x34/0xd4 [ 46.874738][ T3004] el0t_64_sync_handler+0x84/0xf0 [ 46.875664][ T3004] el0t_64_sync+0x18c/0x190 [ 46.876498][ T3004] ---[ end trace 0000000000000000 ]--- [ 46.877611][ T3004] ------------[ cut here ]------------ [ 46.878519][ T3004] block_group >= groups_count - block_group = 3, groups_count = 1 [ 46.878570][ T3004] WARNING: CPU: 0 PID: 3004 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 46.881382][ T3004] Modules linked in: [ 46.882034][ T3004] CPU: 0 PID: 3004 Comm: syz.2.17 Tainted: G W syzkaller #0 [ 46.883384][ T3004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.885005][ T3004] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 46.886316][ T3004] pc : read_block_bitmap+0xec/0x224 [ 46.887220][ T3004] lr : read_block_bitmap+0xe8/0x224 [ 46.888152][ T3004] sp : ffff80001280ba50 [ 46.888926][ T3004] x29: ffff80001280ba50 x28: ffff0000c575d400 x27: 0000000000000000 [ 46.890361][ T3004] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 46.891792][ T3004] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 46.893277][ T3004] x20: 0000000000000000 x19: ffff0000c9dd8000 x18: 0000000000000000 [ 46.894776][ T3004] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 46.896291][ T3004] x14: 00000000000be82f x13: 000000000282a8e8 x12: ffff80000e90c000 [ 46.897759][ T3004] x11: 0000000000000004 x10: 00000000ffffffff x9 : 9fb4704f66972d00 [ 46.899247][ T3004] x8 : 9fb4704f66972d00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 46.900737][ T3004] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 46.902246][ T3004] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 46.903658][ T3004] Call trace: [ 46.904233][ T3004] read_block_bitmap+0xec/0x224 [ 46.905098][ T3004] ext2_free_blocks+0x104/0x368 [ 46.905973][ T3004] __ext2_truncate_blocks+0xb8/0x550 [ 46.906905][ T3004] ext2_write_failed+0xa4/0xc0 [ 46.907775][ T3004] ext2_write_begin+0x54/0x6c [ 46.908610][ T3004] generic_perform_write+0x80/0x1e4 [ 46.909539][ T3004] __generic_file_write_iter+0x7c/0xc0 [ 46.910508][ T3004] generic_file_write_iter+0x50/0xd4 [ 46.911507][ T3004] ext2_file_write_iter+0x10/0x1c [ 46.912429][ T3004] vfs_write+0x1ac/0x2c4 [ 46.913176][ T3004] __arm64_sys_pwrite64+0x84/0xc8 [ 46.914059][ T3004] invoke_syscall+0x40/0xdc [ 46.914875][ T3004] el0_svc_common+0xb0/0xe8 [ 46.915683][ T3004] do_el0_svc+0x24/0x80 [ 46.916417][ T3004] el0_svc+0x34/0xd4 [ 46.917112][ T3004] el0t_64_sync_handler+0x84/0xf0 [ 46.918062][ T3004] el0t_64_sync+0x18c/0x190 [ 46.918874][ T3004] ---[ end trace 0000000000000000 ]--- [ 46.919939][ T3004] ------------[ cut here ]------------ [ 46.920829][ T3004] block_group >= groups_count - block_group = 7, groups_count = 1 [ 46.920840][ T3004] WARNING: CPU: 0 PID: 3004 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 46.923535][ T3004] Modules linked in: [ 46.924157][ T3004] CPU: 0 PID: 3004 Comm: syz.2.17 Tainted: G W syzkaller #0 [ 46.925546][ T3004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.927444][ T3004] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 46.928877][ T3004] pc : read_block_bitmap+0xec/0x224 [ 46.929813][ T3004] lr : read_block_bitmap+0xe8/0x224 [ 46.930758][ T3004] sp : ffff80001280ba50 [ 46.931493][ T3004] x29: ffff80001280ba50 x28: ffff0000c575d400 x27: 0000000000000000 [ 46.932894][ T3004] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 46.934307][ T3004] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 46.935727][ T3004] x20: 0000000000000000 x19: ffff0000c9dd8000 x18: ffff80000a3f7ee1 [ 46.937147][ T3004] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 46.938613][ T3004] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 46.940051][ T3004] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 9fb4704f66972d00 [ 46.941486][ T3004] x8 : 9fb4704f66972d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 46.942941][ T3004] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 46.944396][ T3004] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 46.945838][ T3004] Call trace: [ 46.946420][ T3004] read_block_bitmap+0xec/0x224 [ 46.947286][ T3004] ext2_free_blocks+0x104/0x368 [ 46.948138][ T3004] __ext2_truncate_blocks+0x154/0x550 [ 46.949092][ T3004] ext2_write_failed+0xa4/0xc0 [ 46.949934][ T3004] ext2_write_begin+0x54/0x6c [ 46.950762][ T3004] generic_perform_write+0x80/0x1e4 [ 46.951691][ T3004] __generic_file_write_iter+0x7c/0xc0 [ 46.952663][ T3004] generic_file_write_iter+0x50/0xd4 [ 46.953609][ T3004] ext2_file_write_iter+0x10/0x1c [ 46.954521][ T3004] vfs_write+0x1ac/0x2c4 [ 46.955266][ T3004] __arm64_sys_pwrite64+0x84/0xc8 [ 46.956144][ T3004] invoke_syscall+0x40/0xdc [ 46.956929][ T3004] el0_svc_common+0xb0/0xe8 [ 46.957725][ T3004] do_el0_svc+0x24/0x80 [ 46.958460][ T3004] el0_svc+0x34/0xd4 [ 46.959163][ T3004] el0t_64_sync_handler+0x84/0xf0 [ 46.960081][ T3004] el0t_64_sync+0x18c/0x190 [ 46.960917][ T3004] ---[ end trace 0000000000000000 ]--- [ 46.966252][ T3006] loop2: detected capacity change from 0 to 512 [ 46.970977][ T3006] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 46.972241][ T3006] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 46.973593][ T3006] ext2 filesystem being mounted at /1/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.979185][ T3006] ------------[ cut here ]------------ [ 46.980100][ T3006] block_group >= groups_count - block_group = 7, groups_count = 1 [ 46.980112][ T3006] WARNING: CPU: 0 PID: 3006 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 46.982868][ T3006] Modules linked in: [ 46.983476][ T3006] CPU: 0 PID: 3006 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 46.984839][ T3006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.986658][ T3006] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 46.988049][ T3006] pc : ext2_new_blocks+0x418/0x564 [ 46.988996][ T3006] lr : ext2_new_blocks+0x418/0x564 [ 46.989924][ T3006] sp : ffff80001280b8f0 [ 46.990675][ T3006] x29: ffff80001280b940 x28: 0000000000010000 x27: 0000000000000008 [ 46.992103][ T3006] x26: ffff0000d424f400 x25: 0000000000010000 x24: ffff80001280b9f4 [ 46.993531][ T3006] x23: ffff0000c9ddb000 x22: 0000000000000000 x21: ffff80001280b9f8 [ 46.994988][ T3006] x20: ffff0000c55c4e80 x19: ffff0000c8e792d8 x18: ffff80000a3f7ee1 [ 46.996427][ T3006] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 46.997851][ T3006] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 46.999264][ T3006] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 0990965273975d00 [ 47.000681][ T3006] x8 : 0990965273975d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.002076][ T3006] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.003487][ T3006] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 47.004915][ T3006] Call trace: [ 47.005479][ T3006] ext2_new_blocks+0x418/0x564 [ 47.006312][ T3006] ext2_get_blocks+0x4b4/0x9b0 [ 47.007150][ T3006] ext2_get_block+0x58/0x158 [ 47.007960][ T3006] __block_write_begin_int+0x10c/0x6f0 [ 47.008938][ T3006] block_write_begin+0x5c/0xa4 [ 47.009770][ T3006] ext2_write_begin+0x40/0x6c [ 47.010573][ T3006] generic_perform_write+0x80/0x1e4 [ 47.011482][ T3006] __generic_file_write_iter+0x7c/0xc0 [ 47.012410][ T3006] generic_file_write_iter+0x50/0xd4 [ 47.013315][ T3006] ext2_file_write_iter+0x10/0x1c [ 47.014172][ T3006] vfs_write+0x1ac/0x2c4 [ 47.014888][ T3006] __arm64_sys_pwrite64+0x84/0xc8 [ 47.015759][ T3006] invoke_syscall+0x40/0xdc [ 47.016539][ T3006] el0_svc_common+0xb0/0xe8 [ 47.017338][ T3006] do_el0_svc+0x24/0x80 [ 47.018102][ T3006] el0_svc+0x34/0xd4 [ 47.018793][ T3006] el0t_64_sync_handler+0x84/0xf0 [ 47.019684][ T3006] el0t_64_sync+0x18c/0x190 [ 47.020500][ T3006] ---[ end trace 0000000000000000 ]--- [ 47.021741][ T3006] ------------[ cut here ]------------ [ 47.022797][ T3006] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 47.022822][ T3006] WARNING: CPU: 0 PID: 3006 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.025627][ T3006] Modules linked in: [ 47.026309][ T3006] CPU: 0 PID: 3006 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 47.027818][ T3006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.029568][ T3006] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.030943][ T3006] pc : read_block_bitmap+0xec/0x224 [ 47.031841][ T3006] lr : read_block_bitmap+0xe8/0x224 [ 47.032742][ T3006] sp : ffff80001280ba50 [ 47.033450][ T3006] x29: ffff80001280ba50 x28: ffff0000c01cf800 x27: 0000000000000000 [ 47.034841][ T3006] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 47.036230][ T3006] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 47.037611][ T3006] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: 0000000000002800 [ 47.039004][ T3006] x17: 0000000000000001 x16: 0000000000000000 x15: 000000000000033e [ 47.040385][ T3006] x14: 00000000000e4a37 x13: 0000000002aa34e8 x12: ffff80000e90c000 [ 47.041761][ T3006] x11: 0000000000000004 x10: 00000000ffffffff x9 : 0990965273975d00 [ 47.043153][ T3006] x8 : 0990965273975d00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 47.044541][ T3006] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.045946][ T3006] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 47.047387][ T3006] Call trace: [ 47.047953][ T3006] read_block_bitmap+0xec/0x224 [ 47.048809][ T3006] ext2_free_blocks+0x104/0x368 [ 47.049665][ T3006] __ext2_truncate_blocks+0xb8/0x550 [ 47.050606][ T3006] ext2_write_failed+0xa4/0xc0 [ 47.051454][ T3006] ext2_write_begin+0x54/0x6c [ 47.052297][ T3006] generic_perform_write+0x80/0x1e4 [ 47.053202][ T3006] __generic_file_write_iter+0x7c/0xc0 [ 47.054140][ T3006] generic_file_write_iter+0x50/0xd4 [ 47.055096][ T3006] ext2_file_write_iter+0x10/0x1c [ 47.055958][ T3006] vfs_write+0x1ac/0x2c4 [ 47.056678][ T3006] __arm64_sys_pwrite64+0x84/0xc8 [ 47.057564][ T3006] invoke_syscall+0x40/0xdc [ 47.058341][ T3006] el0_svc_common+0xb0/0xe8 [ 47.059121][ T3006] do_el0_svc+0x24/0x80 [ 47.059821][ T3006] el0_svc+0x34/0xd4 [ 47.060483][ T3006] el0t_64_sync_handler+0x84/0xf0 [ 47.061354][ T3006] el0t_64_sync+0x18c/0x190 [ 47.062123][ T3006] ---[ end trace 0000000000000000 ]--- [ 47.063440][ T3006] ------------[ cut here ]------------ [ 47.064326][ T3006] block_group >= groups_count - block_group = 3, groups_count = 1 [ 47.064338][ T3006] WARNING: CPU: 0 PID: 3006 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.067258][ T3006] Modules linked in: [ 47.067926][ T3006] CPU: 0 PID: 3006 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 47.069449][ T3006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.071240][ T3006] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.072608][ T3006] pc : read_block_bitmap+0xec/0x224 [ 47.073518][ T3006] lr : read_block_bitmap+0xe8/0x224 [ 47.074416][ T3006] sp : ffff80001280ba50 [ 47.075175][ T3006] x29: ffff80001280ba50 x28: ffff0000c01cf800 x27: 0000000000000000 [ 47.076545][ T3006] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 47.077989][ T3006] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 47.079412][ T3006] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: ffff80000a3f7ee1 [ 47.080839][ T3006] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.082263][ T3006] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.083678][ T3006] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 0990965273975d00 [ 47.085114][ T3006] x8 : 0990965273975d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.086528][ T3006] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.087945][ T3006] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.089360][ T3006] Call trace: [ 47.089928][ T3006] read_block_bitmap+0xec/0x224 [ 47.090806][ T3006] ext2_free_blocks+0x104/0x368 [ 47.091673][ T3006] __ext2_truncate_blocks+0xb8/0x550 [ 47.092581][ T3006] ext2_write_failed+0xa4/0xc0 [ 47.093406][ T3006] ext2_write_begin+0x54/0x6c [ 47.094396][ T3006] generic_perform_write+0x80/0x1e4 [ 47.095306][ T3006] __generic_file_write_iter+0x7c/0xc0 [ 47.096251][ T3006] generic_file_write_iter+0x50/0xd4 [ 47.097184][ T3006] ext2_file_write_iter+0x10/0x1c [ 47.098088][ T3006] vfs_write+0x1ac/0x2c4 [ 47.098841][ T3006] __arm64_sys_pwrite64+0x84/0xc8 [ 47.099754][ T3006] invoke_syscall+0x40/0xdc [ 47.100554][ T3006] el0_svc_common+0xb0/0xe8 [ 47.101385][ T3006] do_el0_svc+0x24/0x80 [ 47.102114][ T3006] el0_svc+0x34/0xd4 [ 47.102785][ T3006] el0t_64_sync_handler+0x84/0xf0 [ 47.103659][ T3006] el0t_64_sync+0x18c/0x190 [ 47.104454][ T3006] ---[ end trace 0000000000000000 ]--- [ 47.105495][ T3006] ------------[ cut here ]------------ [ 47.106503][ T3006] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.106517][ T3006] WARNING: CPU: 0 PID: 3006 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.109164][ T3006] Modules linked in: [ 47.109754][ T3006] CPU: 0 PID: 3006 Comm: syz.2.18 Tainted: G W syzkaller #0 [ 47.111065][ T3006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.112601][ T3006] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.113757][ T3006] pc : read_block_bitmap+0xec/0x224 [ 47.114525][ T3006] lr : read_block_bitmap+0xe8/0x224 [ 47.115302][ T3006] sp : ffff80001280ba50 [ 47.115982][ T3006] x29: ffff80001280ba50 x28: ffff0000c01cf800 x27: 0000000000000000 [ 47.117401][ T3006] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 47.118782][ T3006] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 47.120140][ T3006] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: ffff80000a3f7ee1 [ 47.121492][ T3006] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.122833][ T3006] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.124188][ T3006] x11: 00000000ffffefff x10: c0000000ffffefff x9 : 0990965273975d00 [ 47.125556][ T3006] x8 : 0990965273975d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.126934][ T3006] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.128329][ T3006] x2 : 0000000000000000 x1 : ffff80001280b7e0 x0 : 0000000000000000 [ 47.129752][ T3006] Call trace: [ 47.130333][ T3006] read_block_bitmap+0xec/0x224 [ 47.131224][ T3006] ext2_free_blocks+0x104/0x368 [ 47.132100][ T3006] __ext2_truncate_blocks+0x154/0x550 [ 47.133070][ T3006] ext2_write_failed+0xa4/0xc0 [ 47.133922][ T3006] ext2_write_begin+0x54/0x6c [ 47.134755][ T3006] generic_perform_write+0x80/0x1e4 [ 47.135694][ T3006] __generic_file_write_iter+0x7c/0xc0 [ 47.136685][ T3006] generic_file_write_iter+0x50/0xd4 [ 47.137644][ T3006] ext2_file_write_iter+0x10/0x1c [ 47.138572][ T3006] vfs_write+0x1ac/0x2c4 [ 47.139321][ T3006] __arm64_sys_pwrite64+0x84/0xc8 [ 47.140204][ T3006] invoke_syscall+0x40/0xdc [ 47.141042][ T3006] el0_svc_common+0xb0/0xe8 [ 47.141838][ T3006] do_el0_svc+0x24/0x80 [ 47.142548][ T3006] el0_svc+0x34/0xd4 [ 47.143221][ T3006] el0t_64_sync_handler+0x84/0xf0 [ 47.144156][ T3006] el0t_64_sync+0x18c/0x190 [ 47.144945][ T3006] ---[ end trace 0000000000000000 ]--- [ 47.151070][ T3008] loop2: detected capacity change from 0 to 512 [ 47.154014][ T3008] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 47.155328][ T3008] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 47.156851][ T3008] ext2 filesystem being mounted at /2/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.164827][ T3008] ------------[ cut here ]------------ [ 47.165876][ T3008] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.165899][ T3008] WARNING: CPU: 1 PID: 3008 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 47.168665][ T3008] Modules linked in: [ 47.169309][ T3008] CPU: 1 PID: 3008 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 47.170766][ T3008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.172438][ T3008] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.173729][ T3008] pc : ext2_new_blocks+0x418/0x564 [ 47.174547][ T3008] lr : ext2_new_blocks+0x418/0x564 [ 47.175359][ T3008] sp : ffff80001280b8f0 [ 47.176087][ T3008] x29: ffff80001280b940 x28: 0000000000010000 x27: 0000000000000008 [ 47.177593][ T3008] x26: ffff0000cd4bf400 x25: 0000000000010000 x24: ffff80001280b9f4 [ 47.179053][ T3008] x23: ffff0000c5f0c000 x22: 0000000000000000 x21: ffff80001280b9f8 [ 47.180566][ T3008] x20: ffff0000c5555980 x19: ffff0000c8ef0718 x18: 0000000000001800 [ 47.182029][ T3008] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000002 [ 47.183486][ T3008] x14: 0000000000079968 x13: 0000000000000001 x12: ffff80000e90c000 [ 47.184913][ T3008] x11: 0000000000000003 x10: 00000000ffffffff x9 : 77259b9cfe822600 [ 47.186330][ T3008] x8 : 77259b9cfe822600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 47.187774][ T3008] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.189240][ T3008] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 47.190707][ T3008] Call trace: [ 47.191285][ T3008] ext2_new_blocks+0x418/0x564 [ 47.192120][ T3008] ext2_get_blocks+0x4b4/0x9b0 [ 47.192965][ T3008] ext2_get_block+0x58/0x158 [ 47.193788][ T3008] __block_write_begin_int+0x10c/0x6f0 [ 47.194748][ T3008] block_write_begin+0x5c/0xa4 [ 47.195626][ T3008] ext2_write_begin+0x40/0x6c [ 47.196580][ T3008] generic_perform_write+0x80/0x1e4 [ 47.197504][ T3008] __generic_file_write_iter+0x7c/0xc0 [ 47.198482][ T3008] generic_file_write_iter+0x50/0xd4 [ 47.199438][ T3008] ext2_file_write_iter+0x10/0x1c [ 47.200348][ T3008] vfs_write+0x1ac/0x2c4 [ 47.201096][ T3008] __arm64_sys_pwrite64+0x84/0xc8 [ 47.201970][ T3008] invoke_syscall+0x40/0xdc [ 47.202751][ T3008] el0_svc_common+0xb0/0xe8 [ 47.203536][ T3008] do_el0_svc+0x24/0x80 [ 47.204262][ T3008] el0_svc+0x34/0xd4 [ 47.204930][ T3008] el0t_64_sync_handler+0x84/0xf0 [ 47.205771][ T3008] el0t_64_sync+0x18c/0x190 [ 47.206577][ T3008] ---[ end trace 0000000000000000 ]--- [ 47.207668][ T3008] ------------[ cut here ]------------ [ 47.208512][ T3008] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 47.208523][ T3008] WARNING: CPU: 1 PID: 3008 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.211269][ T3008] Modules linked in: [ 47.211877][ T3008] CPU: 1 PID: 3008 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 47.213258][ T3008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.214891][ T3008] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.216200][ T3008] pc : read_block_bitmap+0xec/0x224 [ 47.217097][ T3008] lr : read_block_bitmap+0xe8/0x224 [ 47.218004][ T3008] sp : ffff80001280ba50 [ 47.218736][ T3008] x29: ffff80001280ba50 x28: ffff0000c43bf000 x27: 0000000000000000 [ 47.220187][ T3008] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 47.221619][ T3008] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 47.223126][ T3008] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 47.224561][ T3008] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.225937][ T3008] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.227351][ T3008] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 77259b9cfe822600 [ 47.228751][ T3008] x8 : 77259b9cfe822600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.230154][ T3008] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.231567][ T3008] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.232955][ T3008] Call trace: [ 47.233527][ T3008] read_block_bitmap+0xec/0x224 [ 47.234371][ T3008] ext2_free_blocks+0x104/0x368 [ 47.235256][ T3008] __ext2_truncate_blocks+0xb8/0x550 [ 47.236238][ T3008] ext2_write_failed+0xa4/0xc0 [ 47.237113][ T3008] ext2_write_begin+0x54/0x6c [ 47.237907][ T3008] generic_perform_write+0x80/0x1e4 [ 47.238804][ T3008] __generic_file_write_iter+0x7c/0xc0 [ 47.239754][ T3008] generic_file_write_iter+0x50/0xd4 [ 47.240702][ T3008] ext2_file_write_iter+0x10/0x1c [ 47.241605][ T3008] vfs_write+0x1ac/0x2c4 [ 47.242343][ T3008] __arm64_sys_pwrite64+0x84/0xc8 [ 47.243208][ T3008] invoke_syscall+0x40/0xdc [ 47.243978][ T3008] el0_svc_common+0xb0/0xe8 [ 47.244748][ T3008] do_el0_svc+0x24/0x80 [ 47.245512][ T3008] el0_svc+0x34/0xd4 [ 47.246183][ T3008] el0t_64_sync_handler+0x84/0xf0 [ 47.247087][ T3008] el0t_64_sync+0x18c/0x190 [ 47.247883][ T3008] ---[ end trace 0000000000000000 ]--- [ 47.248877][ T3008] ------------[ cut here ]------------ [ 47.249759][ T3008] block_group >= groups_count - block_group = 3, groups_count = 1 [ 47.249771][ T3008] WARNING: CPU: 1 PID: 3008 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.252516][ T3008] Modules linked in: [ 47.253167][ T3008] CPU: 1 PID: 3008 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 47.254541][ T3008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.256213][ T3008] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.257586][ T3008] pc : read_block_bitmap+0xec/0x224 [ 47.258485][ T3008] lr : read_block_bitmap+0xe8/0x224 [ 47.259406][ T3008] sp : ffff80001280ba50 [ 47.260157][ T3008] x29: ffff80001280ba50 x28: ffff0000c43bf000 x27: 0000000000000000 [ 47.261563][ T3008] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 47.263025][ T3008] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 47.264494][ T3008] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 47.265894][ T3008] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.267400][ T3008] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.268877][ T3008] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 77259b9cfe822600 [ 47.270305][ T3008] x8 : 77259b9cfe822600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.271734][ T3008] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.273204][ T3008] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.274683][ T3008] Call trace: [ 47.275245][ T3008] read_block_bitmap+0xec/0x224 [ 47.276115][ T3008] ext2_free_blocks+0x104/0x368 [ 47.276990][ T3008] __ext2_truncate_blocks+0xb8/0x550 [ 47.277953][ T3008] ext2_write_failed+0xa4/0xc0 [ 47.278849][ T3008] ext2_write_begin+0x54/0x6c [ 47.279700][ T3008] generic_perform_write+0x80/0x1e4 [ 47.280622][ T3008] __generic_file_write_iter+0x7c/0xc0 [ 47.281587][ T3008] generic_file_write_iter+0x50/0xd4 [ 47.282494][ T3008] ext2_file_write_iter+0x10/0x1c [ 47.283371][ T3008] vfs_write+0x1ac/0x2c4 [ 47.284094][ T3008] __arm64_sys_pwrite64+0x84/0xc8 [ 47.284970][ T3008] invoke_syscall+0x40/0xdc [ 47.285809][ T3008] el0_svc_common+0xb0/0xe8 [ 47.286594][ T3008] do_el0_svc+0x24/0x80 [ 47.287334][ T3008] el0_svc+0x34/0xd4 [ 47.288099][ T3008] el0t_64_sync_handler+0x84/0xf0 [ 47.288960][ T3008] el0t_64_sync+0x18c/0x190 [ 47.289749][ T3008] ---[ end trace 0000000000000000 ]--- [ 47.291102][ T3008] ------------[ cut here ]------------ [ 47.291934][ T3008] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.291948][ T3008] WARNING: CPU: 1 PID: 3008 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.294657][ T3008] Modules linked in: [ 47.295253][ T3008] CPU: 1 PID: 3008 Comm: syz.2.19 Tainted: G W syzkaller #0 [ 47.296743][ T3008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.298490][ T3008] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.299842][ T3008] pc : read_block_bitmap+0xec/0x224 [ 47.300748][ T3008] lr : read_block_bitmap+0xe8/0x224 [ 47.301684][ T3008] sp : ffff80001280ba50 [ 47.302389][ T3008] x29: ffff80001280ba50 x28: ffff0000c43bf000 x27: 0000000000000000 [ 47.303804][ T3008] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 47.305234][ T3008] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 47.306682][ T3008] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 47.308090][ T3008] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.309542][ T3008] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.310992][ T3008] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 77259b9cfe822600 [ 47.312378][ T3008] x8 : 77259b9cfe822600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.313754][ T3008] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.315117][ T3008] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.316486][ T3008] Call trace: [ 47.317059][ T3008] read_block_bitmap+0xec/0x224 [ 47.317887][ T3008] ext2_free_blocks+0x104/0x368 [ 47.318732][ T3008] __ext2_truncate_blocks+0x154/0x550 [ 47.319679][ T3008] ext2_write_failed+0xa4/0xc0 [ 47.320530][ T3008] ext2_write_begin+0x54/0x6c [ 47.321358][ T3008] generic_perform_write+0x80/0x1e4 [ 47.322296][ T3008] __generic_file_write_iter+0x7c/0xc0 [ 47.323243][ T3008] generic_file_write_iter+0x50/0xd4 [ 47.324154][ T3008] ext2_file_write_iter+0x10/0x1c [ 47.325090][ T3008] vfs_write+0x1ac/0x2c4 [ 47.325828][ T3008] __arm64_sys_pwrite64+0x84/0xc8 [ 47.326714][ T3008] invoke_syscall+0x40/0xdc [ 47.327498][ T3008] el0_svc_common+0xb0/0xe8 [ 47.328273][ T3008] do_el0_svc+0x24/0x80 [ 47.329006][ T3008] el0_svc+0x34/0xd4 [ 47.329682][ T3008] el0t_64_sync_handler+0x84/0xf0 [ 47.330557][ T3008] el0t_64_sync+0x18c/0x190 [ 47.331393][ T3008] ---[ end trace 0000000000000000 ]--- [ 47.335287][ T3010] loop2: detected capacity change from 0 to 512 [ 47.336570][ T3010] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 47.337674][ T3010] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 47.338865][ T3010] ext2 filesystem being mounted at /3/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.343350][ T3010] ------------[ cut here ]------------ [ 47.344170][ T3010] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.344184][ T3010] WARNING: CPU: 0 PID: 3010 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 47.347289][ T3010] Modules linked in: [ 47.347976][ T3010] CPU: 0 PID: 3010 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 47.349549][ T3010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.351366][ T3010] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.352732][ T3010] pc : ext2_new_blocks+0x418/0x564 [ 47.353630][ T3010] lr : ext2_new_blocks+0x418/0x564 [ 47.354495][ T3010] sp : ffff8000127fb8f0 [ 47.355247][ T3010] x29: ffff8000127fb940 x28: 0000000000010000 x27: 0000000000000008 [ 47.356655][ T3010] x26: ffff0000d41c4400 x25: 0000000000010000 x24: ffff8000127fb9f4 [ 47.358083][ T3010] x23: ffff0000c9ddd000 x22: 0000000000000000 x21: ffff8000127fb9f8 [ 47.359532][ T3010] x20: ffff0000c4ca8200 x19: ffff0000c8e78cf8 x18: ffff80000a3f7ee1 [ 47.360942][ T3010] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.362338][ T3010] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.363737][ T3010] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 221187b5a322bf00 [ 47.365152][ T3010] x8 : 221187b5a322bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.366554][ T3010] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.367978][ T3010] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 47.369386][ T3010] Call trace: [ 47.369959][ T3010] ext2_new_blocks+0x418/0x564 [ 47.370834][ T3010] ext2_get_blocks+0x4b4/0x9b0 [ 47.371635][ T3010] ext2_get_block+0x58/0x158 [ 47.372416][ T3010] __block_write_begin_int+0x10c/0x6f0 [ 47.373338][ T3010] block_write_begin+0x5c/0xa4 [ 47.374141][ T3010] ext2_write_begin+0x40/0x6c [ 47.374894][ T3010] generic_perform_write+0x80/0x1e4 [ 47.375762][ T3010] __generic_file_write_iter+0x7c/0xc0 [ 47.376689][ T3010] generic_file_write_iter+0x50/0xd4 [ 47.377614][ T3010] ext2_file_write_iter+0x10/0x1c [ 47.378509][ T3010] vfs_write+0x1ac/0x2c4 [ 47.379270][ T3010] __arm64_sys_pwrite64+0x84/0xc8 [ 47.380178][ T3010] invoke_syscall+0x40/0xdc [ 47.380998][ T3010] el0_svc_common+0xb0/0xe8 [ 47.381804][ T3010] do_el0_svc+0x24/0x80 [ 47.382570][ T3010] el0_svc+0x34/0xd4 [ 47.383273][ T3010] el0t_64_sync_handler+0x84/0xf0 [ 47.384154][ T3010] el0t_64_sync+0x18c/0x190 [ 47.384936][ T3010] ---[ end trace 0000000000000000 ]--- [ 47.386204][ T3010] ------------[ cut here ]------------ [ 47.387261][ T3010] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 47.387272][ T3010] WARNING: CPU: 0 PID: 3010 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.389912][ T3010] Modules linked in: [ 47.390528][ T3010] CPU: 0 PID: 3010 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 47.391869][ T3010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.393437][ T3010] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.394785][ T3010] pc : read_block_bitmap+0xec/0x224 [ 47.395709][ T3010] lr : read_block_bitmap+0xe8/0x224 [ 47.396645][ T3010] sp : ffff8000127fba50 [ 47.397374][ T3010] x29: ffff8000127fba50 x28: ffff0000c01cd400 x27: 0000000000000000 [ 47.398812][ T3010] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 47.400289][ T3010] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 47.401728][ T3010] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 47.403146][ T3010] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.404544][ T3010] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.405971][ T3010] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 221187b5a322bf00 [ 47.407434][ T3010] x8 : 221187b5a322bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.408875][ T3010] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.410287][ T3010] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.411674][ T3010] Call trace: [ 47.412249][ T3010] read_block_bitmap+0xec/0x224 [ 47.413100][ T3010] ext2_free_blocks+0x104/0x368 [ 47.413951][ T3010] __ext2_truncate_blocks+0xb8/0x550 [ 47.414886][ T3010] ext2_write_failed+0xa4/0xc0 [ 47.415722][ T3010] ext2_write_begin+0x54/0x6c [ 47.416547][ T3010] generic_perform_write+0x80/0x1e4 [ 47.417470][ T3010] __generic_file_write_iter+0x7c/0xc0 [ 47.418452][ T3010] generic_file_write_iter+0x50/0xd4 [ 47.419375][ T3010] ext2_file_write_iter+0x10/0x1c [ 47.420247][ T3010] vfs_write+0x1ac/0x2c4 [ 47.420997][ T3010] __arm64_sys_pwrite64+0x84/0xc8 [ 47.421867][ T3010] invoke_syscall+0x40/0xdc [ 47.422658][ T3010] el0_svc_common+0xb0/0xe8 [ 47.423452][ T3010] do_el0_svc+0x24/0x80 [ 47.424188][ T3010] el0_svc+0x34/0xd4 [ 47.424877][ T3010] el0t_64_sync_handler+0x84/0xf0 [ 47.425837][ T3010] el0t_64_sync+0x18c/0x190 [ 47.426627][ T3010] ---[ end trace 0000000000000000 ]--- [ 47.427615][ T3010] ------------[ cut here ]------------ [ 47.428502][ T3010] block_group >= groups_count - block_group = 3, groups_count = 1 [ 47.428514][ T3010] WARNING: CPU: 0 PID: 3010 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.431080][ T3010] Modules linked in: [ 47.431691][ T3010] CPU: 0 PID: 3010 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 47.433042][ T3010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.434551][ T3010] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.435731][ T3010] pc : read_block_bitmap+0xec/0x224 [ 47.436641][ T3010] lr : read_block_bitmap+0xe8/0x224 [ 47.437530][ T3010] sp : ffff8000127fba50 [ 47.438228][ T3010] x29: ffff8000127fba50 x28: ffff0000c01cd400 x27: 0000000000000000 [ 47.439618][ T3010] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 47.441042][ T3010] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 47.442472][ T3010] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 47.443889][ T3010] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.445305][ T3010] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.446695][ T3010] x11: 00000000ffffefff x10: c0000000ffffefff x9 : 221187b5a322bf00 [ 47.448081][ T3010] x8 : 221187b5a322bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.449486][ T3010] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.450880][ T3010] x2 : 0000000000000000 x1 : ffff8000127fb7e0 x0 : 0000000000000000 [ 47.452299][ T3010] Call trace: [ 47.452871][ T3010] read_block_bitmap+0xec/0x224 [ 47.453716][ T3010] ext2_free_blocks+0x104/0x368 [ 47.454600][ T3010] __ext2_truncate_blocks+0xb8/0x550 [ 47.455516][ T3010] ext2_write_failed+0xa4/0xc0 [ 47.456379][ T3010] ext2_write_begin+0x54/0x6c [ 47.457225][ T3010] generic_perform_write+0x80/0x1e4 [ 47.458139][ T3010] __generic_file_write_iter+0x7c/0xc0 [ 47.459105][ T3010] generic_file_write_iter+0x50/0xd4 [ 47.460049][ T3010] ext2_file_write_iter+0x10/0x1c [ 47.460928][ T3010] vfs_write+0x1ac/0x2c4 [ 47.461673][ T3010] __arm64_sys_pwrite64+0x84/0xc8 [ 47.462557][ T3010] invoke_syscall+0x40/0xdc [ 47.463347][ T3010] el0_svc_common+0xb0/0xe8 [ 47.464132][ T3010] do_el0_svc+0x24/0x80 [ 47.464833][ T3010] el0_svc+0x34/0xd4 [ 47.465492][ T3010] el0t_64_sync_handler+0x84/0xf0 [ 47.466378][ T3010] el0t_64_sync+0x18c/0x190 [ 47.467155][ T3010] ---[ end trace 0000000000000000 ]--- [ 47.468230][ T3010] ------------[ cut here ]------------ [ 47.469109][ T3010] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.469123][ T3010] WARNING: CPU: 0 PID: 3010 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.472080][ T3010] Modules linked in: [ 47.472764][ T3010] CPU: 0 PID: 3010 Comm: syz.2.20 Tainted: G W syzkaller #0 [ 47.474294][ T3010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.476059][ T3010] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.477407][ T3010] pc : read_block_bitmap+0xec/0x224 [ 47.478315][ T3010] lr : read_block_bitmap+0xe8/0x224 [ 47.479195][ T3010] sp : ffff8000127fba50 [ 47.479909][ T3010] x29: ffff8000127fba50 x28: ffff0000c01cd400 x27: 0000000000000000 [ 47.481332][ T3010] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 47.482789][ T3010] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 47.484154][ T3010] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 47.485560][ T3010] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.486953][ T3010] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.488349][ T3010] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 221187b5a322bf00 [ 47.489746][ T3010] x8 : 221187b5a322bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.491116][ T3010] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.492495][ T3010] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.493886][ T3010] Call trace: [ 47.494455][ T3010] read_block_bitmap+0xec/0x224 [ 47.495320][ T3010] ext2_free_blocks+0x104/0x368 [ 47.496227][ T3010] __ext2_truncate_blocks+0x154/0x550 [ 47.497184][ T3010] ext2_write_failed+0xa4/0xc0 [ 47.498038][ T3010] ext2_write_begin+0x54/0x6c [ 47.498844][ T3010] generic_perform_write+0x80/0x1e4 [ 47.499775][ T3010] __generic_file_write_iter+0x7c/0xc0 [ 47.500723][ T3010] generic_file_write_iter+0x50/0xd4 [ 47.501658][ T3010] ext2_file_write_iter+0x10/0x1c [ 47.502547][ T3010] vfs_write+0x1ac/0x2c4 [ 47.503292][ T3010] __arm64_sys_pwrite64+0x84/0xc8 [ 47.504183][ T3010] invoke_syscall+0x40/0xdc [ 47.504995][ T3010] el0_svc_common+0xb0/0xe8 [ 47.505796][ T3010] do_el0_svc+0x24/0x80 [ 47.506533][ T3010] el0_svc+0x34/0xd4 [ 47.507216][ T3010] el0t_64_sync_handler+0x84/0xf0 [ 47.508113][ T3010] el0t_64_sync+0x18c/0x190 [ 47.508885][ T3010] ---[ end trace 0000000000000000 ]--- [ 47.515258][ T3012] loop2: detected capacity change from 0 to 512 [ 47.517475][ T3012] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 47.518874][ T3012] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 47.520548][ T3012] ext2 filesystem being mounted at /4/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.532829][ T3012] ------------[ cut here ]------------ [ 47.533745][ T3012] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.533759][ T3012] WARNING: CPU: 1 PID: 3012 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 47.536414][ T3012] Modules linked in: [ 47.537105][ T3012] CPU: 1 PID: 3012 Comm: syz.2.21 Tainted: G W syzkaller #0 [ 47.538667][ T3012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.540400][ T3012] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.541744][ T3012] pc : ext2_new_blocks+0x418/0x564 [ 47.542628][ T3012] lr : ext2_new_blocks+0x418/0x564 [ 47.543544][ T3012] sp : ffff80001281b8f0 [ 47.544264][ T3012] x29: ffff80001281b940 x28: 0000000000010000 x27: 0000000000000008 [ 47.545679][ T3012] x26: ffff0000d4244400 x25: 0000000000010000 x24: ffff80001281b9f4 [ 47.547119][ T3012] x23: ffff0000c5f3a000 x22: 0000000000000000 x21: ffff80001281b9f8 [ 47.548527][ T3012] x20: ffff0000c49b7700 x19: ffff0000c8ef12d8 x18: ffff80000a3f7ee1 [ 47.549915][ T3012] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.551308][ T3012] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.552734][ T3012] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 00111a8db2dc9e00 [ 47.554146][ T3012] x8 : 00111a8db2dc9e00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.555537][ T3012] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.556868][ T3012] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 47.558257][ T3012] Call trace: [ 47.558809][ T3012] ext2_new_blocks+0x418/0x564 [ 47.559618][ T3012] ext2_get_blocks+0x4b4/0x9b0 [ 47.560436][ T3012] ext2_get_block+0x58/0x158 [ 47.561239][ T3012] __block_write_begin_int+0x10c/0x6f0 [ 47.562198][ T3012] block_write_begin+0x5c/0xa4 [ 47.563035][ T3012] ext2_write_begin+0x40/0x6c [ 47.563860][ T3012] generic_perform_write+0x80/0x1e4 [ 47.564736][ T3012] __generic_file_write_iter+0x7c/0xc0 [ 47.565683][ T3012] generic_file_write_iter+0x50/0xd4 [ 47.566601][ T3012] ext2_file_write_iter+0x10/0x1c [ 47.567468][ T3012] vfs_write+0x1ac/0x2c4 [ 47.568186][ T3012] __arm64_sys_pwrite64+0x84/0xc8 [ 47.569038][ T3012] invoke_syscall+0x40/0xdc [ 47.569805][ T3012] el0_svc_common+0xb0/0xe8 [ 47.570583][ T3012] do_el0_svc+0x24/0x80 [ 47.571301][ T3012] el0_svc+0x34/0xd4 [ 47.571977][ T3012] el0t_64_sync_handler+0x84/0xf0 [ 47.572852][ T3012] el0t_64_sync+0x18c/0x190 [ 47.573641][ T3012] ---[ end trace 0000000000000000 ]--- [ 47.574886][ T3012] ------------[ cut here ]------------ [ 47.575881][ T3012] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 47.575962][ T3012] WARNING: CPU: 1 PID: 3012 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.578641][ T3012] Modules linked in: [ 47.579248][ T3012] CPU: 1 PID: 3012 Comm: syz.2.21 Tainted: G W syzkaller #0 [ 47.580607][ T3012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.582169][ T3012] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.583377][ T3012] pc : read_block_bitmap+0xec/0x224 [ 47.584199][ T3012] lr : read_block_bitmap+0xe8/0x224 [ 47.585044][ T3012] sp : ffff80001281ba50 [ 47.585721][ T3012] x29: ffff80001281ba50 x28: ffff0000c0172400 x27: 0000000000000000 [ 47.587184][ T3012] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 47.588582][ T3012] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 47.589978][ T3012] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: 0000000000000000 [ 47.591395][ T3012] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 47.592808][ T3012] x14: 00000000000b5aa7 x13: 0000000002557ffc x12: ffff80000e90c000 [ 47.594240][ T3012] x11: 0000000000000004 x10: 00000000ffffffff x9 : 00111a8db2dc9e00 [ 47.595670][ T3012] x8 : 00111a8db2dc9e00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 47.597081][ T3012] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.598524][ T3012] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 47.599995][ T3012] Call trace: [ 47.600595][ T3012] read_block_bitmap+0xec/0x224 [ 47.601471][ T3012] ext2_free_blocks+0x104/0x368 [ 47.602350][ T3012] __ext2_truncate_blocks+0xb8/0x550 [ 47.603272][ T3012] ext2_write_failed+0xa4/0xc0 [ 47.604113][ T3012] ext2_write_begin+0x54/0x6c [ 47.604947][ T3012] generic_perform_write+0x80/0x1e4 [ 47.605868][ T3012] __generic_file_write_iter+0x7c/0xc0 [ 47.606810][ T3012] generic_file_write_iter+0x50/0xd4 [ 47.607691][ T3012] ext2_file_write_iter+0x10/0x1c [ 47.608535][ T3012] vfs_write+0x1ac/0x2c4 [ 47.609248][ T3012] __arm64_sys_pwrite64+0x84/0xc8 [ 47.610082][ T3012] invoke_syscall+0x40/0xdc [ 47.610835][ T3012] el0_svc_common+0xb0/0xe8 [ 47.611591][ T3012] do_el0_svc+0x24/0x80 [ 47.612295][ T3012] el0_svc+0x34/0xd4 [ 47.612943][ T3012] el0t_64_sync_handler+0x84/0xf0 [ 47.613803][ T3012] el0t_64_sync+0x18c/0x190 [ 47.614571][ T3012] ---[ end trace 0000000000000000 ]--- [ 47.615696][ T3012] ------------[ cut here ]------------ [ 47.616628][ T3012] block_group >= groups_count - block_group = 3, groups_count = 1 [ 47.616640][ T3012] WARNING: CPU: 1 PID: 3012 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.619189][ T3012] Modules linked in: [ 47.619781][ T3012] CPU: 1 PID: 3012 Comm: syz.2.21 Tainted: G W syzkaller #0 [ 47.621150][ T3012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.622692][ T3012] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.623902][ T3012] pc : read_block_bitmap+0xec/0x224 [ 47.624677][ T3012] lr : read_block_bitmap+0xe8/0x224 [ 47.625466][ T3012] sp : ffff80001281ba50 [ 47.626180][ T3012] x29: ffff80001281ba50 x28: ffff0000c0172400 x27: 0000000000000000 [ 47.627609][ T3012] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 47.629013][ T3012] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 47.630398][ T3012] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 47.631798][ T3012] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.633185][ T3012] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.634602][ T3012] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 00111a8db2dc9e00 [ 47.636021][ T3012] x8 : 00111a8db2dc9e00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.637460][ T3012] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.638859][ T3012] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.640244][ T3012] Call trace: [ 47.640806][ T3012] read_block_bitmap+0xec/0x224 [ 47.641637][ T3012] ext2_free_blocks+0x104/0x368 [ 47.642471][ T3012] __ext2_truncate_blocks+0xb8/0x550 [ 47.643397][ T3012] ext2_write_failed+0xa4/0xc0 [ 47.644216][ T3012] ext2_write_begin+0x54/0x6c [ 47.645023][ T3012] generic_perform_write+0x80/0x1e4 [ 47.645911][ T3012] __generic_file_write_iter+0x7c/0xc0 [ 47.646858][ T3012] generic_file_write_iter+0x50/0xd4 [ 47.647767][ T3012] ext2_file_write_iter+0x10/0x1c [ 47.648675][ T3012] vfs_write+0x1ac/0x2c4 [ 47.649395][ T3012] __arm64_sys_pwrite64+0x84/0xc8 [ 47.650281][ T3012] invoke_syscall+0x40/0xdc [ 47.651064][ T3012] el0_svc_common+0xb0/0xe8 [ 47.651854][ T3012] do_el0_svc+0x24/0x80 [ 47.652581][ T3012] el0_svc+0x34/0xd4 [ 47.653259][ T3012] el0t_64_sync_handler+0x84/0xf0 [ 47.654168][ T3012] el0t_64_sync+0x18c/0x190 [ 47.655012][ T3012] ---[ end trace 0000000000000000 ]--- [ 47.656005][ T3012] ------------[ cut here ]------------ [ 47.656849][ T3012] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.656862][ T3012] WARNING: CPU: 1 PID: 3012 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.659394][ T3012] Modules linked in: [ 47.659978][ T3012] CPU: 1 PID: 3012 Comm: syz.2.21 Tainted: G W syzkaller #0 [ 47.661324][ T3012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.662879][ T3012] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.664124][ T3012] pc : read_block_bitmap+0xec/0x224 [ 47.664918][ T3012] lr : read_block_bitmap+0xe8/0x224 [ 47.665722][ T3012] sp : ffff80001281ba50 [ 47.666448][ T3012] x29: ffff80001281ba50 x28: ffff0000c0172400 x27: 0000000000000000 [ 47.667872][ T3012] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 47.669269][ T3012] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 47.670707][ T3012] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 47.672123][ T3012] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.673537][ T3012] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.674958][ T3012] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 00111a8db2dc9e00 [ 47.676352][ T3012] x8 : 00111a8db2dc9e00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.677716][ T3012] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.679066][ T3012] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.680459][ T3012] Call trace: [ 47.681032][ T3012] read_block_bitmap+0xec/0x224 [ 47.681863][ T3012] ext2_free_blocks+0x104/0x368 [ 47.682686][ T3012] __ext2_truncate_blocks+0x154/0x550 [ 47.683595][ T3012] ext2_write_failed+0xa4/0xc0 [ 47.684400][ T3012] ext2_write_begin+0x54/0x6c [ 47.685249][ T3012] generic_perform_write+0x80/0x1e4 [ 47.686140][ T3012] __generic_file_write_iter+0x7c/0xc0 [ 47.687074][ T3012] generic_file_write_iter+0x50/0xd4 [ 47.687968][ T3012] ext2_file_write_iter+0x10/0x1c [ 47.688830][ T3012] vfs_write+0x1ac/0x2c4 [ 47.689540][ T3012] __arm64_sys_pwrite64+0x84/0xc8 [ 47.690377][ T3012] invoke_syscall+0x40/0xdc [ 47.691148][ T3012] el0_svc_common+0xb0/0xe8 [ 47.691930][ T3012] do_el0_svc+0x24/0x80 [ 47.692629][ T3012] el0_svc+0x34/0xd4 [ 47.693289][ T3012] el0t_64_sync_handler+0x84/0xf0 [ 47.694133][ T3012] el0t_64_sync+0x18c/0x190 [ 47.694912][ T3012] ---[ end trace 0000000000000000 ]--- [ 47.699119][ T3014] loop2: detected capacity change from 0 to 512 [ 47.700416][ T3014] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 47.701549][ T3014] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 47.702674][ T3014] ext2 filesystem being mounted at /5/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.708307][ T3014] ------------[ cut here ]------------ [ 47.709316][ T3014] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.709330][ T3014] WARNING: CPU: 1 PID: 3014 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 47.711944][ T3014] Modules linked in: [ 47.712536][ T3014] CPU: 1 PID: 3014 Comm: syz.2.22 Tainted: G W syzkaller #0 [ 47.713875][ T3014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.715421][ T3014] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.716776][ T3014] pc : ext2_new_blocks+0x418/0x564 [ 47.717700][ T3014] lr : ext2_new_blocks+0x418/0x564 [ 47.718649][ T3014] sp : ffff8000128238f0 [ 47.719360][ T3014] x29: ffff800012823940 x28: 0000000000010000 x27: 0000000000000008 [ 47.720821][ T3014] x26: ffff0000cd53b400 x25: 0000000000010000 x24: ffff8000128239f4 [ 47.722241][ T3014] x23: ffff0000c9ddb000 x22: 0000000000000000 x21: ffff8000128239f8 [ 47.723645][ T3014] x20: ffff0000c9689380 x19: ffff0000c8ef18b8 x18: ffff80000a3f7ee1 [ 47.725087][ T3014] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.726547][ T3014] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.728024][ T3014] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 5b578da6ecc34f00 [ 47.729484][ T3014] x8 : 5b578da6ecc34f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.730825][ T3014] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.732207][ T3014] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 47.733607][ T3014] Call trace: [ 47.734151][ T3014] ext2_new_blocks+0x418/0x564 [ 47.734998][ T3014] ext2_get_blocks+0x4b4/0x9b0 [ 47.735817][ T3014] ext2_get_block+0x58/0x158 [ 47.736604][ T3014] __block_write_begin_int+0x10c/0x6f0 [ 47.737540][ T3014] block_write_begin+0x5c/0xa4 [ 47.738351][ T3014] ext2_write_begin+0x40/0x6c [ 47.739176][ T3014] generic_perform_write+0x80/0x1e4 [ 47.740069][ T3014] __generic_file_write_iter+0x7c/0xc0 [ 47.741029][ T3014] generic_file_write_iter+0x50/0xd4 [ 47.741949][ T3014] ext2_file_write_iter+0x10/0x1c [ 47.742815][ T3014] vfs_write+0x1ac/0x2c4 [ 47.743529][ T3014] __arm64_sys_pwrite64+0x84/0xc8 [ 47.744354][ T3014] invoke_syscall+0x40/0xdc [ 47.745106][ T3014] el0_svc_common+0xb0/0xe8 [ 47.745868][ T3014] do_el0_svc+0x24/0x80 [ 47.746635][ T3014] el0_svc+0x34/0xd4 [ 47.747319][ T3014] el0t_64_sync_handler+0x84/0xf0 [ 47.748224][ T3014] el0t_64_sync+0x18c/0x190 [ 47.749017][ T3014] ---[ end trace 0000000000000000 ]--- [ 47.750061][ T3014] ------------[ cut here ]------------ [ 47.750922][ T3014] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 47.750994][ T3014] WARNING: CPU: 1 PID: 3014 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.753765][ T3014] Modules linked in: [ 47.754400][ T3014] CPU: 1 PID: 3014 Comm: syz.2.22 Tainted: G W syzkaller #0 [ 47.755884][ T3014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.757657][ T3014] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.759032][ T3014] pc : read_block_bitmap+0xec/0x224 [ 47.759961][ T3014] lr : read_block_bitmap+0xe8/0x224 [ 47.760895][ T3014] sp : ffff800012823a50 [ 47.761609][ T3014] x29: ffff800012823a50 x28: ffff0000c44a4400 x27: 0000000000000000 [ 47.763005][ T3014] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 47.764448][ T3014] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 47.765851][ T3014] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: 0000000000000000 [ 47.767253][ T3014] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 47.768681][ T3014] x14: 00000000000ba2e8 x13: 000000000211f742 x12: ffff80000e90c000 [ 47.770141][ T3014] x11: 0000000000000004 x10: 00000000ffffffff x9 : 5b578da6ecc34f00 [ 47.771516][ T3014] x8 : 5b578da6ecc34f00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 47.772886][ T3014] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.774285][ T3014] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 47.775710][ T3014] Call trace: [ 47.776362][ T3014] read_block_bitmap+0xec/0x224 [ 47.777256][ T3014] ext2_free_blocks+0x104/0x368 [ 47.778119][ T3014] __ext2_truncate_blocks+0xb8/0x550 [ 47.779041][ T3014] ext2_write_failed+0xa4/0xc0 [ 47.779873][ T3014] ext2_write_begin+0x54/0x6c [ 47.780713][ T3014] generic_perform_write+0x80/0x1e4 [ 47.781633][ T3014] __generic_file_write_iter+0x7c/0xc0 [ 47.782574][ T3014] generic_file_write_iter+0x50/0xd4 [ 47.783488][ T3014] ext2_file_write_iter+0x10/0x1c [ 47.784352][ T3014] vfs_write+0x1ac/0x2c4 [ 47.785079][ T3014] __arm64_sys_pwrite64+0x84/0xc8 [ 47.785953][ T3014] invoke_syscall+0x40/0xdc [ 47.786737][ T3014] el0_svc_common+0xb0/0xe8 [ 47.787516][ T3014] do_el0_svc+0x24/0x80 [ 47.788236][ T3014] el0_svc+0x34/0xd4 [ 47.788896][ T3014] el0t_64_sync_handler+0x84/0xf0 [ 47.789761][ T3014] el0t_64_sync+0x18c/0x190 [ 47.790528][ T3014] ---[ end trace 0000000000000000 ]--- [ 47.792007][ T3014] ------------[ cut here ]------------ [ 47.792861][ T3014] block_group >= groups_count - block_group = 3, groups_count = 1 [ 47.792873][ T3014] WARNING: CPU: 1 PID: 3014 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.795854][ T3014] Modules linked in: [ 47.796517][ T3014] CPU: 1 PID: 3014 Comm: syz.2.22 Tainted: G W syzkaller #0 [ 47.798049][ T3014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.799808][ T3014] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.801169][ T3014] pc : read_block_bitmap+0xec/0x224 [ 47.802065][ T3014] lr : read_block_bitmap+0xe8/0x224 [ 47.802931][ T3014] sp : ffff800012823a50 [ 47.803632][ T3014] x29: ffff800012823a50 x28: ffff0000c44a4400 x27: 0000000000000000 [ 47.805000][ T3014] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 47.806359][ T3014] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 47.807724][ T3014] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: ffff80000a3f7ee1 [ 47.809110][ T3014] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.810509][ T3014] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.811917][ T3014] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 5b578da6ecc34f00 [ 47.813372][ T3014] x8 : 5b578da6ecc34f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.814777][ T3014] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.816159][ T3014] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.817564][ T3014] Call trace: [ 47.818128][ T3014] read_block_bitmap+0xec/0x224 [ 47.818992][ T3014] ext2_free_blocks+0x104/0x368 [ 47.819813][ T3014] __ext2_truncate_blocks+0xb8/0x550 [ 47.820747][ T3014] ext2_write_failed+0xa4/0xc0 [ 47.821625][ T3014] ext2_write_begin+0x54/0x6c [ 47.822465][ T3014] generic_perform_write+0x80/0x1e4 [ 47.823395][ T3014] __generic_file_write_iter+0x7c/0xc0 [ 47.824401][ T3014] generic_file_write_iter+0x50/0xd4 [ 47.825354][ T3014] ext2_file_write_iter+0x10/0x1c [ 47.826247][ T3014] vfs_write+0x1ac/0x2c4 [ 47.826990][ T3014] __arm64_sys_pwrite64+0x84/0xc8 [ 47.827873][ T3014] invoke_syscall+0x40/0xdc [ 47.828687][ T3014] el0_svc_common+0xb0/0xe8 [ 47.829458][ T3014] do_el0_svc+0x24/0x80 [ 47.830165][ T3014] el0_svc+0x34/0xd4 [ 47.830820][ T3014] el0t_64_sync_handler+0x84/0xf0 [ 47.831752][ T3014] el0t_64_sync+0x18c/0x190 [ 47.832547][ T3014] ---[ end trace 0000000000000000 ]--- [ 47.833599][ T3014] ------------[ cut here ]------------ [ 47.834499][ T3014] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.834557][ T3014] WARNING: CPU: 1 PID: 3014 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.837505][ T3014] Modules linked in: [ 47.838200][ T3014] CPU: 1 PID: 3014 Comm: syz.2.22 Tainted: G W syzkaller #0 [ 47.839771][ T3014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.841608][ T3014] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.843024][ T3014] pc : read_block_bitmap+0xec/0x224 [ 47.843954][ T3014] lr : read_block_bitmap+0xe8/0x224 [ 47.844895][ T3014] sp : ffff800012823a50 [ 47.845608][ T3014] x29: ffff800012823a50 x28: ffff0000c44a4400 x27: 0000000000000000 [ 47.846958][ T3014] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 47.848336][ T3014] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 47.849674][ T3014] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: 0000000000000000 [ 47.851047][ T3014] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 47.852436][ T3014] x14: 00000000000a6144 x13: 00000000034af2c7 x12: ffff80000e90c000 [ 47.853815][ T3014] x11: 0000000000000004 x10: 00000000ffffffff x9 : 5b578da6ecc34f00 [ 47.855215][ T3014] x8 : 5b578da6ecc34f00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 47.856572][ T3014] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.857931][ T3014] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 47.859288][ T3014] Call trace: [ 47.859839][ T3014] read_block_bitmap+0xec/0x224 [ 47.860671][ T3014] ext2_free_blocks+0x104/0x368 [ 47.861517][ T3014] __ext2_truncate_blocks+0x154/0x550 [ 47.862426][ T3014] ext2_write_failed+0xa4/0xc0 [ 47.863254][ T3014] ext2_write_begin+0x54/0x6c [ 47.864077][ T3014] generic_perform_write+0x80/0x1e4 [ 47.864977][ T3014] __generic_file_write_iter+0x7c/0xc0 [ 47.865923][ T3014] generic_file_write_iter+0x50/0xd4 [ 47.866836][ T3014] ext2_file_write_iter+0x10/0x1c [ 47.867684][ T3014] vfs_write+0x1ac/0x2c4 [ 47.868403][ T3014] __arm64_sys_pwrite64+0x84/0xc8 [ 47.869271][ T3014] invoke_syscall+0x40/0xdc [ 47.870057][ T3014] el0_svc_common+0xb0/0xe8 [ 47.870854][ T3014] do_el0_svc+0x24/0x80 [ 47.871598][ T3014] el0_svc+0x34/0xd4 [ 47.872302][ T3014] el0t_64_sync_handler+0x84/0xf0 [ 47.873164][ T3014] el0t_64_sync+0x18c/0x190 [ 47.873934][ T3014] ---[ end trace 0000000000000000 ]--- [ 47.878199][ T3016] loop2: detected capacity change from 0 to 512 [ 47.879323][ T3016] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 47.880530][ T3016] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 47.881759][ T3016] ext2 filesystem being mounted at /6/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.892042][ T3016] ------------[ cut here ]------------ [ 47.892965][ T3016] block_group >= groups_count - block_group = 7, groups_count = 1 [ 47.892973][ T3016] WARNING: CPU: 0 PID: 3016 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 47.895622][ T3016] Modules linked in: [ 47.896332][ T3016] CPU: 0 PID: 3016 Comm: syz.2.23 Tainted: G W syzkaller #0 [ 47.897923][ T3016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.899799][ T3016] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.901220][ T3016] pc : ext2_new_blocks+0x418/0x564 [ 47.902112][ T3016] lr : ext2_new_blocks+0x418/0x564 [ 47.903039][ T3016] sp : ffff80001282b8f0 [ 47.903764][ T3016] x29: ffff80001282b940 x28: 0000000000010000 x27: 0000000000000008 [ 47.905169][ T3016] x26: ffff0000d4239400 x25: 0000000000010000 x24: ffff80001282b9f4 [ 47.906584][ T3016] x23: ffff0000c9ddc000 x22: 0000000000000000 x21: ffff80001282b9f8 [ 47.908022][ T3016] x20: ffff0000c52d1200 x19: ffff0000c8e798b8 x18: ffff80000a3f7ee1 [ 47.909442][ T3016] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.910842][ T3016] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.912242][ T3016] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : e7d112ff4a1c8f00 [ 47.913678][ T3016] x8 : e7d112ff4a1c8f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.915172][ T3016] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.916605][ T3016] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 47.918066][ T3016] Call trace: [ 47.918670][ T3016] ext2_new_blocks+0x418/0x564 [ 47.919513][ T3016] ext2_get_blocks+0x4b4/0x9b0 [ 47.920350][ T3016] ext2_get_block+0x58/0x158 [ 47.921195][ T3016] __block_write_begin_int+0x10c/0x6f0 [ 47.922165][ T3016] block_write_begin+0x5c/0xa4 [ 47.922998][ T3016] ext2_write_begin+0x40/0x6c [ 47.923830][ T3016] generic_perform_write+0x80/0x1e4 [ 47.924752][ T3016] __generic_file_write_iter+0x7c/0xc0 [ 47.925688][ T3016] generic_file_write_iter+0x50/0xd4 [ 47.926628][ T3016] ext2_file_write_iter+0x10/0x1c [ 47.927511][ T3016] vfs_write+0x1ac/0x2c4 [ 47.928262][ T3016] __arm64_sys_pwrite64+0x84/0xc8 [ 47.929141][ T3016] invoke_syscall+0x40/0xdc [ 47.929933][ T3016] el0_svc_common+0xb0/0xe8 [ 47.930712][ T3016] do_el0_svc+0x24/0x80 [ 47.931434][ T3016] el0_svc+0x34/0xd4 [ 47.932103][ T3016] el0t_64_sync_handler+0x84/0xf0 [ 47.932993][ T3016] el0t_64_sync+0x18c/0x190 [ 47.933808][ T3016] ---[ end trace 0000000000000000 ]--- [ 47.935069][ T3016] ------------[ cut here ]------------ [ 47.936061][ T3016] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 47.936073][ T3016] WARNING: CPU: 0 PID: 3016 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.938788][ T3016] Modules linked in: [ 47.939392][ T3016] CPU: 0 PID: 3016 Comm: syz.2.23 Tainted: G W syzkaller #0 [ 47.940736][ T3016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.942371][ T3016] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.943594][ T3016] pc : read_block_bitmap+0xec/0x224 [ 47.944442][ T3016] lr : read_block_bitmap+0xe8/0x224 [ 47.945244][ T3016] sp : ffff80001282ba50 [ 47.945918][ T3016] x29: ffff80001282ba50 x28: ffff0000c5ee8400 x27: 0000000000000000 [ 47.947363][ T3016] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 47.948781][ T3016] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 47.950210][ T3016] x20: 0000000000000000 x19: ffff0000c9ddc000 x18: ffff80000a3f7ee1 [ 47.951635][ T3016] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.953042][ T3016] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.954495][ T3016] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : e7d112ff4a1c8f00 [ 47.955930][ T3016] x8 : e7d112ff4a1c8f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.957364][ T3016] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.958776][ T3016] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 47.960212][ T3016] Call trace: [ 47.960791][ T3016] read_block_bitmap+0xec/0x224 [ 47.961621][ T3016] ext2_free_blocks+0x104/0x368 [ 47.962480][ T3016] __ext2_truncate_blocks+0xb8/0x550 [ 47.963403][ T3016] ext2_write_failed+0xa4/0xc0 [ 47.964272][ T3016] ext2_write_begin+0x54/0x6c [ 47.965107][ T3016] generic_perform_write+0x80/0x1e4 [ 47.966012][ T3016] __generic_file_write_iter+0x7c/0xc0 [ 47.966947][ T3016] generic_file_write_iter+0x50/0xd4 [ 47.967862][ T3016] ext2_file_write_iter+0x10/0x1c [ 47.968713][ T3016] vfs_write+0x1ac/0x2c4 [ 47.969444][ T3016] __arm64_sys_pwrite64+0x84/0xc8 [ 47.970312][ T3016] invoke_syscall+0x40/0xdc [ 47.971110][ T3016] el0_svc_common+0xb0/0xe8 [ 47.971927][ T3016] do_el0_svc+0x24/0x80 [ 47.972653][ T3016] el0_svc+0x34/0xd4 [ 47.973333][ T3016] el0t_64_sync_handler+0x84/0xf0 [ 47.974235][ T3016] el0t_64_sync+0x18c/0x190 [ 47.975031][ T3016] ---[ end trace 0000000000000000 ]--- [ 47.976086][ T3016] ------------[ cut here ]------------ [ 47.976993][ T3016] block_group >= groups_count - block_group = 3, groups_count = 1 [ 47.977007][ T3016] WARNING: CPU: 0 PID: 3016 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 47.979463][ T3016] Modules linked in: [ 47.980031][ T3016] CPU: 0 PID: 3016 Comm: syz.2.23 Tainted: G W syzkaller #0 [ 47.981311][ T3016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.982771][ T3016] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 47.983964][ T3016] pc : read_block_bitmap+0xec/0x224 [ 47.984742][ T3016] lr : read_block_bitmap+0xe8/0x224 [ 47.985515][ T3016] sp : ffff80001282ba50 [ 47.986222][ T3016] x29: ffff80001282ba50 x28: ffff0000c5ee8400 x27: 0000000000000000 [ 47.987520][ T3016] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 47.988853][ T3016] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 47.990223][ T3016] x20: 0000000000000000 x19: ffff0000c9ddc000 x18: ffff80000a3f7ee1 [ 47.991583][ T3016] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 47.992951][ T3016] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 47.994339][ T3016] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : e7d112ff4a1c8f00 [ 47.995709][ T3016] x8 : e7d112ff4a1c8f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 47.997192][ T3016] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 47.998602][ T3016] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.000006][ T3016] Call trace: [ 48.000579][ T3016] read_block_bitmap+0xec/0x224 [ 48.001436][ T3016] ext2_free_blocks+0x104/0x368 [ 48.002293][ T3016] __ext2_truncate_blocks+0xb8/0x550 [ 48.003203][ T3016] ext2_write_failed+0xa4/0xc0 [ 48.004016][ T3016] ext2_write_begin+0x54/0x6c [ 48.004840][ T3016] generic_perform_write+0x80/0x1e4 [ 48.005739][ T3016] __generic_file_write_iter+0x7c/0xc0 [ 48.006700][ T3016] generic_file_write_iter+0x50/0xd4 [ 48.007628][ T3016] ext2_file_write_iter+0x10/0x1c [ 48.008538][ T3016] vfs_write+0x1ac/0x2c4 [ 48.009283][ T3016] __arm64_sys_pwrite64+0x84/0xc8 [ 48.010179][ T3016] invoke_syscall+0x40/0xdc [ 48.011008][ T3016] el0_svc_common+0xb0/0xe8 [ 48.011827][ T3016] do_el0_svc+0x24/0x80 [ 48.012598][ T3016] el0_svc+0x34/0xd4 [ 48.013285][ T3016] el0t_64_sync_handler+0x84/0xf0 [ 48.014170][ T3016] el0t_64_sync+0x18c/0x190 [ 48.015032][ T3016] ---[ end trace 0000000000000000 ]--- [ 48.016141][ T3016] ------------[ cut here ]------------ [ 48.017027][ T3016] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.017039][ T3016] WARNING: CPU: 0 PID: 3016 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.019725][ T3016] Modules linked in: [ 48.020341][ T3016] CPU: 0 PID: 3016 Comm: syz.2.23 Tainted: G W syzkaller #0 [ 48.021746][ T3016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.023466][ T3016] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.024737][ T3016] pc : read_block_bitmap+0xec/0x224 [ 48.025549][ T3016] lr : read_block_bitmap+0xe8/0x224 [ 48.026499][ T3016] sp : ffff80001282ba50 [ 48.027216][ T3016] x29: ffff80001282ba50 x28: ffff0000c5ee8400 x27: 0000000000000000 [ 48.028674][ T3016] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 48.030143][ T3016] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 48.031543][ T3016] x20: 0000000000000000 x19: ffff0000c9ddc000 x18: ffff80000a3f7ee1 [ 48.032965][ T3016] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.034393][ T3016] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.035812][ T3016] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : e7d112ff4a1c8f00 [ 48.037245][ T3016] x8 : e7d112ff4a1c8f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.038680][ T3016] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.040123][ T3016] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.041506][ T3016] Call trace: [ 48.042055][ T3016] read_block_bitmap+0xec/0x224 [ 48.042947][ T3016] ext2_free_blocks+0x104/0x368 [ 48.043771][ T3016] __ext2_truncate_blocks+0x154/0x550 [ 48.044707][ T3016] ext2_write_failed+0xa4/0xc0 [ 48.045547][ T3016] ext2_write_begin+0x54/0x6c [ 48.046379][ T3016] generic_perform_write+0x80/0x1e4 [ 48.047303][ T3016] __generic_file_write_iter+0x7c/0xc0 [ 48.048258][ T3016] generic_file_write_iter+0x50/0xd4 [ 48.049221][ T3016] ext2_file_write_iter+0x10/0x1c [ 48.050131][ T3016] vfs_write+0x1ac/0x2c4 [ 48.050908][ T3016] __arm64_sys_pwrite64+0x84/0xc8 [ 48.051806][ T3016] invoke_syscall+0x40/0xdc [ 48.052613][ T3016] el0_svc_common+0xb0/0xe8 [ 48.053383][ T3016] do_el0_svc+0x24/0x80 [ 48.054097][ T3016] el0_svc+0x34/0xd4 [ 48.054772][ T3016] el0t_64_sync_handler+0x84/0xf0 [ 48.055648][ T3016] el0t_64_sync+0x18c/0x190 [ 48.056409][ T3016] ---[ end trace 0000000000000000 ]--- [ 48.062555][ T3018] loop2: detected capacity change from 0 to 512 [ 48.067406][ T3018] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 48.068637][ T3018] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 48.069928][ T3018] ext2 filesystem being mounted at /7/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 48.077841][ T3018] ------------[ cut here ]------------ [ 48.078737][ T3018] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.078750][ T3018] WARNING: CPU: 0 PID: 3018 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 48.081300][ T3018] Modules linked in: [ 48.081882][ T3018] CPU: 0 PID: 3018 Comm: syz.2.24 Tainted: G W syzkaller #0 [ 48.083191][ T3018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.084691][ T3018] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.085836][ T3018] pc : ext2_new_blocks+0x418/0x564 [ 48.086749][ T3018] lr : ext2_new_blocks+0x418/0x564 [ 48.087660][ T3018] sp : ffff8000121f38f0 [ 48.088412][ T3018] x29: ffff8000121f3940 x28: 0000000000010000 x27: 0000000000000008 [ 48.089852][ T3018] x26: ffff0000d421d400 x25: 0000000000010000 x24: ffff8000121f39f4 [ 48.091294][ T3018] x23: ffff0000c9ddd000 x22: 0000000000000000 x21: ffff8000121f39f8 [ 48.092745][ T3018] x20: ffff0000c50c2d80 x19: ffff0000c8e79e98 x18: ffff80000a3f7ee1 [ 48.094172][ T3018] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.095593][ T3018] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.097030][ T3018] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : cda36fb90c22bf00 [ 48.098475][ T3018] x8 : cda36fb90c22bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.099907][ T3018] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.101414][ T3018] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 48.102859][ T3018] Call trace: [ 48.103445][ T3018] ext2_new_blocks+0x418/0x564 [ 48.104288][ T3018] ext2_get_blocks+0x4b4/0x9b0 [ 48.105133][ T3018] ext2_get_block+0x58/0x158 [ 48.105954][ T3018] __block_write_begin_int+0x10c/0x6f0 [ 48.106944][ T3018] block_write_begin+0x5c/0xa4 [ 48.107791][ T3018] ext2_write_begin+0x40/0x6c [ 48.108614][ T3018] generic_perform_write+0x80/0x1e4 [ 48.109523][ T3018] __generic_file_write_iter+0x7c/0xc0 [ 48.110523][ T3018] generic_file_write_iter+0x50/0xd4 [ 48.111488][ T3018] ext2_file_write_iter+0x10/0x1c [ 48.112367][ T3018] vfs_write+0x1ac/0x2c4 [ 48.113137][ T3018] __arm64_sys_pwrite64+0x84/0xc8 [ 48.114041][ T3018] invoke_syscall+0x40/0xdc [ 48.114802][ T3018] el0_svc_common+0xb0/0xe8 [ 48.115594][ T3018] do_el0_svc+0x24/0x80 [ 48.116327][ T3018] el0_svc+0x34/0xd4 [ 48.117001][ T3018] el0t_64_sync_handler+0x84/0xf0 [ 48.117859][ T3018] el0t_64_sync+0x18c/0x190 [ 48.118604][ T3018] ---[ end trace 0000000000000000 ]--- [ 48.119900][ T3018] ------------[ cut here ]------------ [ 48.120855][ T3018] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 48.120868][ T3018] WARNING: CPU: 0 PID: 3018 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.123699][ T3018] Modules linked in: [ 48.124311][ T3018] CPU: 0 PID: 3018 Comm: syz.2.24 Tainted: G W syzkaller #0 [ 48.125626][ T3018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.127379][ T3018] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.128733][ T3018] pc : read_block_bitmap+0xec/0x224 [ 48.129648][ T3018] lr : read_block_bitmap+0xe8/0x224 [ 48.130577][ T3018] sp : ffff8000121f3a50 [ 48.131310][ T3018] x29: ffff8000121f3a50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 48.132744][ T3018] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 48.134170][ T3018] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 48.135581][ T3018] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 48.136971][ T3018] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.138374][ T3018] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.139793][ T3018] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : cda36fb90c22bf00 [ 48.141197][ T3018] x8 : cda36fb90c22bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.142620][ T3018] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.144021][ T3018] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.145409][ T3018] Call trace: [ 48.145980][ T3018] read_block_bitmap+0xec/0x224 [ 48.146820][ T3018] ext2_free_blocks+0x104/0x368 [ 48.147685][ T3018] __ext2_truncate_blocks+0xb8/0x550 [ 48.148663][ T3018] ext2_write_failed+0xa4/0xc0 [ 48.149515][ T3018] ext2_write_begin+0x54/0x6c [ 48.150340][ T3018] generic_perform_write+0x80/0x1e4 [ 48.151261][ T3018] __generic_file_write_iter+0x7c/0xc0 [ 48.152233][ T3018] generic_file_write_iter+0x50/0xd4 [ 48.153181][ T3018] ext2_file_write_iter+0x10/0x1c [ 48.154066][ T3018] vfs_write+0x1ac/0x2c4 [ 48.154806][ T3018] __arm64_sys_pwrite64+0x84/0xc8 [ 48.155743][ T3018] invoke_syscall+0x40/0xdc [ 48.156605][ T3018] el0_svc_common+0xb0/0xe8 [ 48.157423][ T3018] do_el0_svc+0x24/0x80 [ 48.158180][ T3018] el0_svc+0x34/0xd4 [ 48.158890][ T3018] el0t_64_sync_handler+0x84/0xf0 [ 48.159822][ T3018] el0t_64_sync+0x18c/0x190 [ 48.160639][ T3018] ---[ end trace 0000000000000000 ]--- [ 48.161634][ T3018] ------------[ cut here ]------------ [ 48.162463][ T3018] block_group >= groups_count - block_group = 3, groups_count = 1 [ 48.162475][ T3018] WARNING: CPU: 0 PID: 3018 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.165004][ T3018] Modules linked in: [ 48.165582][ T3018] CPU: 0 PID: 3018 Comm: syz.2.24 Tainted: G W syzkaller #0 [ 48.167075][ T3018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.168835][ T3018] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.170205][ T3018] pc : read_block_bitmap+0xec/0x224 [ 48.171105][ T3018] lr : read_block_bitmap+0xe8/0x224 [ 48.172032][ T3018] sp : ffff8000121f3a50 [ 48.172763][ T3018] x29: ffff8000121f3a50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 48.174149][ T3018] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 48.175550][ T3018] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 48.176974][ T3018] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 48.178403][ T3018] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.179767][ T3018] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.181229][ T3018] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : cda36fb90c22bf00 [ 48.182666][ T3018] x8 : cda36fb90c22bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.184088][ T3018] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.185537][ T3018] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.186987][ T3018] Call trace: [ 48.187573][ T3018] read_block_bitmap+0xec/0x224 [ 48.188418][ T3018] ext2_free_blocks+0x104/0x368 [ 48.189274][ T3018] __ext2_truncate_blocks+0xb8/0x550 [ 48.190223][ T3018] ext2_write_failed+0xa4/0xc0 [ 48.191071][ T3018] ext2_write_begin+0x54/0x6c [ 48.191905][ T3018] generic_perform_write+0x80/0x1e4 [ 48.192825][ T3018] __generic_file_write_iter+0x7c/0xc0 [ 48.193777][ T3018] generic_file_write_iter+0x50/0xd4 [ 48.194697][ T3018] ext2_file_write_iter+0x10/0x1c [ 48.195575][ T3018] vfs_write+0x1ac/0x2c4 [ 48.196318][ T3018] __arm64_sys_pwrite64+0x84/0xc8 [ 48.197204][ T3018] invoke_syscall+0x40/0xdc [ 48.197982][ T3018] el0_svc_common+0xb0/0xe8 [ 48.198782][ T3018] do_el0_svc+0x24/0x80 [ 48.199503][ T3018] el0_svc+0x34/0xd4 [ 48.200162][ T3018] el0t_64_sync_handler+0x84/0xf0 [ 48.201021][ T3018] el0t_64_sync+0x18c/0x190 [ 48.201779][ T3018] ---[ end trace 0000000000000000 ]--- [ 48.202781][ T3018] ------------[ cut here ]------------ [ 48.203593][ T3018] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.203605][ T3018] WARNING: CPU: 0 PID: 3018 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.206216][ T3018] Modules linked in: [ 48.206895][ T3018] CPU: 0 PID: 3018 Comm: syz.2.24 Tainted: G W syzkaller #0 [ 48.208422][ T3018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.210193][ T3018] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.211570][ T3018] pc : read_block_bitmap+0xec/0x224 [ 48.212476][ T3018] lr : read_block_bitmap+0xe8/0x224 [ 48.213369][ T3018] sp : ffff8000121f3a50 [ 48.214074][ T3018] x29: ffff8000121f3a50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 48.215455][ T3018] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 48.216832][ T3018] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 48.218230][ T3018] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 48.219626][ T3018] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.221067][ T3018] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.222459][ T3018] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : cda36fb90c22bf00 [ 48.223828][ T3018] x8 : cda36fb90c22bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.225206][ T3018] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.226592][ T3018] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.227971][ T3018] Call trace: [ 48.228519][ T3018] read_block_bitmap+0xec/0x224 [ 48.229342][ T3018] ext2_free_blocks+0x104/0x368 [ 48.230173][ T3018] __ext2_truncate_blocks+0x154/0x550 [ 48.231099][ T3018] ext2_write_failed+0xa4/0xc0 [ 48.231920][ T3018] ext2_write_begin+0x54/0x6c [ 48.232729][ T3018] generic_perform_write+0x80/0x1e4 [ 48.233620][ T3018] __generic_file_write_iter+0x7c/0xc0 [ 48.234575][ T3018] generic_file_write_iter+0x50/0xd4 [ 48.235506][ T3018] ext2_file_write_iter+0x10/0x1c [ 48.236414][ T3018] vfs_write+0x1ac/0x2c4 [ 48.237172][ T3018] __arm64_sys_pwrite64+0x84/0xc8 [ 48.238063][ T3018] invoke_syscall+0x40/0xdc [ 48.238846][ T3018] el0_svc_common+0xb0/0xe8 [ 48.239648][ T3018] do_el0_svc+0x24/0x80 [ 48.240375][ T3018] el0_svc+0x34/0xd4 [ 48.241058][ T3018] el0t_64_sync_handler+0x84/0xf0 [ 48.241925][ T3018] el0t_64_sync+0x18c/0x190 [ 48.242719][ T3018] ---[ end trace 0000000000000000 ]--- [ 48.247848][ T3020] loop2: detected capacity change from 0 to 512 [ 48.250751][ T3020] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 48.252034][ T3020] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 48.253323][ T3020] ext2 filesystem being mounted at /8/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 48.265461][ T3020] ------------[ cut here ]------------ [ 48.266576][ T3020] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.266593][ T3020] WARNING: CPU: 0 PID: 3020 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 48.269097][ T3020] Modules linked in: [ 48.269676][ T3020] CPU: 0 PID: 3020 Comm: syz.2.25 Tainted: G W syzkaller #0 [ 48.270984][ T3020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.272548][ T3020] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.273741][ T3020] pc : ext2_new_blocks+0x418/0x564 [ 48.274527][ T3020] lr : ext2_new_blocks+0x418/0x564 [ 48.275305][ T3020] sp : ffff8000127038f0 [ 48.275973][ T3020] x29: ffff800012703940 x28: 0000000000010000 x27: 0000000000000008 [ 48.277374][ T3020] x26: ffff0000d4265400 x25: 0000000000010000 x24: ffff8000127039f4 [ 48.278782][ T3020] x23: ffff0000c9ddf000 x22: 0000000000000000 x21: ffff8000127039f8 [ 48.280190][ T3020] x20: ffff0000c5e89b80 x19: ffff0000c8e7aa58 x18: ffff80000a3f7ee1 [ 48.281607][ T3020] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.283030][ T3020] x14: ffff80000a96b270 x13: 0000000000000004 x12: 0000000b3ce589a2 [ 48.284393][ T3020] x11: 00000000f95959eb x10: 00000000ffffffff x9 : ea1234e4415fdb00 [ 48.285791][ T3020] x8 : ea1234e4415fdb00 x7 : 0000000000000000 x6 : ffff800009978974 [ 48.287217][ T3020] x5 : 0000000000000000 x4 : 0000000000000080 x3 : ffff0001fe9d4428 [ 48.288650][ T3020] x2 : ffff0001fe9d4428 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 48.290123][ T3020] Call trace: [ 48.290659][ T3020] ext2_new_blocks+0x418/0x564 [ 48.291466][ T3020] ext2_get_blocks+0x4b4/0x9b0 [ 48.292312][ T3020] ext2_get_block+0x58/0x158 [ 48.293139][ T3020] __block_write_begin_int+0x10c/0x6f0 [ 48.294134][ T3020] block_write_begin+0x5c/0xa4 [ 48.294985][ T3020] ext2_write_begin+0x40/0x6c [ 48.295815][ T3020] generic_perform_write+0x80/0x1e4 [ 48.296746][ T3020] __generic_file_write_iter+0x7c/0xc0 [ 48.297729][ T3020] generic_file_write_iter+0x50/0xd4 [ 48.298690][ T3020] ext2_file_write_iter+0x10/0x1c [ 48.299586][ T3020] vfs_write+0x1ac/0x2c4 [ 48.300346][ T3020] __arm64_sys_pwrite64+0x84/0xc8 [ 48.301235][ T3020] invoke_syscall+0x40/0xdc [ 48.302008][ T3020] el0_svc_common+0xb0/0xe8 [ 48.302786][ T3020] do_el0_svc+0x24/0x80 [ 48.303531][ T3020] el0_svc+0x34/0xd4 [ 48.304192][ T3020] el0t_64_sync_handler+0x84/0xf0 [ 48.305067][ T3020] el0t_64_sync+0x18c/0x190 [ 48.305847][ T3020] ---[ end trace 0000000000000000 ]--- [ 48.306823][ T3020] ------------[ cut here ]------------ [ 48.307625][ T3020] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 48.307639][ T3020] WARNING: CPU: 0 PID: 3020 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.310179][ T3020] Modules linked in: [ 48.310747][ T3020] CPU: 0 PID: 3020 Comm: syz.2.25 Tainted: G W syzkaller #0 [ 48.312011][ T3020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.313490][ T3020] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.314646][ T3020] pc : read_block_bitmap+0xec/0x224 [ 48.315434][ T3020] lr : read_block_bitmap+0xe8/0x224 [ 48.316318][ T3020] sp : ffff800012703a50 [ 48.317061][ T3020] x29: ffff800012703a50 x28: ffff0000c5eea800 x27: 0000000000000000 [ 48.318463][ T3020] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 48.319870][ T3020] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 48.321301][ T3020] x20: 0000000000000000 x19: ffff0000c9ddf000 x18: ffff80000a3f7ee1 [ 48.322701][ T3020] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.324065][ T3020] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.325405][ T3020] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : ea1234e4415fdb00 [ 48.326780][ T3020] x8 : ea1234e4415fdb00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.328188][ T3020] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.329561][ T3020] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.330909][ T3020] Call trace: [ 48.331463][ T3020] read_block_bitmap+0xec/0x224 [ 48.332290][ T3020] ext2_free_blocks+0x104/0x368 [ 48.333127][ T3020] __ext2_truncate_blocks+0xb8/0x550 [ 48.334040][ T3020] ext2_write_failed+0xa4/0xc0 [ 48.334860][ T3020] ext2_write_begin+0x54/0x6c [ 48.335661][ T3020] generic_perform_write+0x80/0x1e4 [ 48.336559][ T3020] __generic_file_write_iter+0x7c/0xc0 [ 48.337468][ T3020] generic_file_write_iter+0x50/0xd4 [ 48.338352][ T3020] ext2_file_write_iter+0x10/0x1c [ 48.339194][ T3020] vfs_write+0x1ac/0x2c4 [ 48.339905][ T3020] __arm64_sys_pwrite64+0x84/0xc8 [ 48.340779][ T3020] invoke_syscall+0x40/0xdc [ 48.341556][ T3020] el0_svc_common+0xb0/0xe8 [ 48.342334][ T3020] do_el0_svc+0x24/0x80 [ 48.343053][ T3020] el0_svc+0x34/0xd4 [ 48.343723][ T3020] el0t_64_sync_handler+0x84/0xf0 [ 48.344583][ T3020] el0t_64_sync+0x18c/0x190 [ 48.345375][ T3020] ---[ end trace 0000000000000000 ]--- [ 48.346411][ T3020] ------------[ cut here ]------------ [ 48.347242][ T3020] block_group >= groups_count - block_group = 3, groups_count = 1 [ 48.347255][ T3020] WARNING: CPU: 0 PID: 3020 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.349839][ T3020] Modules linked in: [ 48.350447][ T3020] CPU: 0 PID: 3020 Comm: syz.2.25 Tainted: G W syzkaller #0 [ 48.351803][ T3020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.353371][ T3020] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.354557][ T3020] pc : read_block_bitmap+0xec/0x224 [ 48.355340][ T3020] lr : read_block_bitmap+0xe8/0x224 [ 48.356279][ T3020] sp : ffff800012703a50 [ 48.357016][ T3020] x29: ffff800012703a50 x28: ffff0000c5eea800 x27: 0000000000000000 [ 48.358466][ T3020] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 48.359901][ T3020] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 48.361330][ T3020] x20: 0000000000000000 x19: ffff0000c9ddf000 x18: ffff80000a3f7ee1 [ 48.362785][ T3020] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.364263][ T3020] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.365720][ T3020] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : ea1234e4415fdb00 [ 48.367143][ T3020] x8 : ea1234e4415fdb00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.368565][ T3020] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.369969][ T3020] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.371409][ T3020] Call trace: [ 48.371954][ T3020] read_block_bitmap+0xec/0x224 [ 48.372806][ T3020] ext2_free_blocks+0x104/0x368 [ 48.373636][ T3020] __ext2_truncate_blocks+0xb8/0x550 [ 48.374562][ T3020] ext2_write_failed+0xa4/0xc0 [ 48.375392][ T3020] ext2_write_begin+0x54/0x6c [ 48.376211][ T3020] generic_perform_write+0x80/0x1e4 [ 48.377131][ T3020] __generic_file_write_iter+0x7c/0xc0 [ 48.378085][ T3020] generic_file_write_iter+0x50/0xd4 [ 48.378998][ T3020] ext2_file_write_iter+0x10/0x1c [ 48.379876][ T3020] vfs_write+0x1ac/0x2c4 [ 48.380603][ T3020] __arm64_sys_pwrite64+0x84/0xc8 [ 48.381520][ T3020] invoke_syscall+0x40/0xdc [ 48.382320][ T3020] el0_svc_common+0xb0/0xe8 [ 48.383136][ T3020] do_el0_svc+0x24/0x80 [ 48.383871][ T3020] el0_svc+0x34/0xd4 [ 48.384556][ T3020] el0t_64_sync_handler+0x84/0xf0 [ 48.385445][ T3020] el0t_64_sync+0x18c/0x190 [ 48.386266][ T3020] ---[ end trace 0000000000000000 ]--- [ 48.387527][ T3020] ------------[ cut here ]------------ [ 48.388366][ T3020] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.388377][ T3020] WARNING: CPU: 0 PID: 3020 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.390934][ T3020] Modules linked in: [ 48.391535][ T3020] CPU: 0 PID: 3020 Comm: syz.2.25 Tainted: G W syzkaller #0 [ 48.392903][ T3020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.394428][ T3020] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.395604][ T3020] pc : read_block_bitmap+0xec/0x224 [ 48.396514][ T3020] lr : read_block_bitmap+0xe8/0x224 [ 48.397402][ T3020] sp : ffff800012703a50 [ 48.398120][ T3020] x29: ffff800012703a50 x28: ffff0000c5eea800 x27: 0000000000000000 [ 48.399535][ T3020] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 48.400937][ T3020] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 48.402344][ T3020] x20: 0000000000000000 x19: ffff0000c9ddf000 x18: ffff80000a3f7ee1 [ 48.403740][ T3020] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.405134][ T3020] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.406537][ T3020] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : ea1234e4415fdb00 [ 48.407922][ T3020] x8 : ea1234e4415fdb00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.409329][ T3020] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.410777][ T3020] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.412161][ T3020] Call trace: [ 48.412723][ T3020] read_block_bitmap+0xec/0x224 [ 48.413572][ T3020] ext2_free_blocks+0x104/0x368 [ 48.414373][ T3020] __ext2_truncate_blocks+0x154/0x550 [ 48.415291][ T3020] ext2_write_failed+0xa4/0xc0 [ 48.416117][ T3020] ext2_write_begin+0x54/0x6c [ 48.416924][ T3020] generic_perform_write+0x80/0x1e4 [ 48.417825][ T3020] __generic_file_write_iter+0x7c/0xc0 [ 48.418765][ T3020] generic_file_write_iter+0x50/0xd4 [ 48.419691][ T3020] ext2_file_write_iter+0x10/0x1c [ 48.420575][ T3020] vfs_write+0x1ac/0x2c4 [ 48.421339][ T3020] __arm64_sys_pwrite64+0x84/0xc8 [ 48.422203][ T3020] invoke_syscall+0x40/0xdc [ 48.422989][ T3020] el0_svc_common+0xb0/0xe8 [ 48.423813][ T3020] do_el0_svc+0x24/0x80 [ 48.424539][ T3020] el0_svc+0x34/0xd4 [ 48.425227][ T3020] el0t_64_sync_handler+0x84/0xf0 [ 48.426122][ T3020] el0t_64_sync+0x18c/0x190 [ 48.426935][ T3020] ---[ end trace 0000000000000000 ]--- [ 48.430581][ T3022] loop2: detected capacity change from 0 to 512 [ 48.431767][ T3022] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 48.432906][ T3022] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 48.435644][ T3022] ext2 filesystem being mounted at /9/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 48.439502][ T3022] ------------[ cut here ]------------ [ 48.440590][ T3022] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.440619][ T3022] WARNING: CPU: 1 PID: 3022 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 48.443290][ T3022] Modules linked in: [ 48.443907][ T3022] CPU: 1 PID: 3022 Comm: syz.2.26 Tainted: G W syzkaller #0 [ 48.445260][ T3022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.446940][ T3022] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.448298][ T3022] pc : ext2_new_blocks+0x418/0x564 [ 48.449217][ T3022] lr : ext2_new_blocks+0x418/0x564 [ 48.450131][ T3022] sp : ffff8000128338f0 [ 48.450839][ T3022] x29: ffff800012833940 x28: 0000000000010000 x27: 0000000000000008 [ 48.452218][ T3022] x26: ffff0000d4255400 x25: 0000000000010000 x24: ffff8000128339f4 [ 48.453611][ T3022] x23: ffff0000c5f0f000 x22: 0000000000000000 x21: ffff8000128339f8 [ 48.455032][ T3022] x20: ffff0000c5e15000 x19: ffff0000c8ef2478 x18: 0000000000002c00 [ 48.456500][ T3022] x17: 0000000000000001 x16: 0000000000000000 x15: 000000000000026b [ 48.457941][ T3022] x14: 0000000000100000 x13: 00000000010ad359 x12: ffff80000e90c000 [ 48.459399][ T3022] x11: 0000000000000003 x10: 00000000ffffffff x9 : da59b4bd92ee1c00 [ 48.460819][ T3022] x8 : da59b4bd92ee1c00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 48.462277][ T3022] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.463714][ T3022] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 48.465128][ T3022] Call trace: [ 48.465688][ T3022] ext2_new_blocks+0x418/0x564 [ 48.466502][ T3022] ext2_get_blocks+0x4b4/0x9b0 [ 48.467451][ T3022] ext2_get_block+0x58/0x158 [ 48.468336][ T3022] __block_write_begin_int+0x10c/0x6f0 [ 48.469357][ T3022] block_write_begin+0x5c/0xa4 [ 48.470223][ T3022] ext2_write_begin+0x40/0x6c [ 48.471095][ T3022] generic_perform_write+0x80/0x1e4 [ 48.472026][ T3022] __generic_file_write_iter+0x7c/0xc0 [ 48.472992][ T3022] generic_file_write_iter+0x50/0xd4 [ 48.473905][ T3022] ext2_file_write_iter+0x10/0x1c [ 48.474788][ T3022] vfs_write+0x1ac/0x2c4 [ 48.475542][ T3022] __arm64_sys_pwrite64+0x84/0xc8 [ 48.476415][ T3022] invoke_syscall+0x40/0xdc [ 48.477261][ T3022] el0_svc_common+0xb0/0xe8 [ 48.478060][ T3022] do_el0_svc+0x24/0x80 [ 48.478820][ T3022] el0_svc+0x34/0xd4 [ 48.479517][ T3022] el0t_64_sync_handler+0x84/0xf0 [ 48.480411][ T3022] el0t_64_sync+0x18c/0x190 [ 48.481212][ T3022] ---[ end trace 0000000000000000 ]--- [ 48.482445][ T3022] ------------[ cut here ]------------ [ 48.483523][ T3022] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 48.483537][ T3022] WARNING: CPU: 1 PID: 3022 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.486583][ T3022] Modules linked in: [ 48.487299][ T3022] CPU: 1 PID: 3022 Comm: syz.2.26 Tainted: G W syzkaller #0 [ 48.488852][ T3022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.490710][ T3022] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.492107][ T3022] pc : read_block_bitmap+0xec/0x224 [ 48.493041][ T3022] lr : read_block_bitmap+0xe8/0x224 [ 48.493954][ T3022] sp : ffff800012833a50 [ 48.494691][ T3022] x29: ffff800012833a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 48.496126][ T3022] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 48.497538][ T3022] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 48.499010][ T3022] x20: 0000000000000000 x19: ffff0000c5f0f000 x18: ffff80000a3f7ee1 [ 48.500492][ T3022] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.501954][ T3022] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.503427][ T3022] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : da59b4bd92ee1c00 [ 48.504877][ T3022] x8 : da59b4bd92ee1c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.506271][ T3022] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.507687][ T3022] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.509170][ T3022] Call trace: [ 48.509770][ T3022] read_block_bitmap+0xec/0x224 [ 48.510670][ T3022] ext2_free_blocks+0x104/0x368 [ 48.511557][ T3022] __ext2_truncate_blocks+0xb8/0x550 [ 48.512459][ T3022] ext2_write_failed+0xa4/0xc0 [ 48.513316][ T3022] ext2_write_begin+0x54/0x6c [ 48.514197][ T3022] generic_perform_write+0x80/0x1e4 [ 48.515096][ T3022] __generic_file_write_iter+0x7c/0xc0 [ 48.516063][ T3022] generic_file_write_iter+0x50/0xd4 [ 48.516979][ T3022] ext2_file_write_iter+0x10/0x1c [ 48.517898][ T3022] vfs_write+0x1ac/0x2c4 [ 48.518655][ T3022] __arm64_sys_pwrite64+0x84/0xc8 [ 48.519532][ T3022] invoke_syscall+0x40/0xdc [ 48.520311][ T3022] el0_svc_common+0xb0/0xe8 [ 48.521161][ T3022] do_el0_svc+0x24/0x80 [ 48.521962][ T3022] el0_svc+0x34/0xd4 [ 48.522669][ T3022] el0t_64_sync_handler+0x84/0xf0 [ 48.523565][ T3022] el0t_64_sync+0x18c/0x190 [ 48.524370][ T3022] ---[ end trace 0000000000000000 ]--- [ 48.525545][ T3022] ------------[ cut here ]------------ [ 48.526547][ T3022] block_group >= groups_count - block_group = 3, groups_count = 1 [ 48.526555][ T3022] WARNING: CPU: 1 PID: 3022 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.529497][ T3022] Modules linked in: [ 48.530168][ T3022] CPU: 1 PID: 3022 Comm: syz.2.26 Tainted: G W syzkaller #0 [ 48.531731][ T3022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.533455][ T3022] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.534802][ T3022] pc : read_block_bitmap+0xec/0x224 [ 48.535709][ T3022] lr : read_block_bitmap+0xe8/0x224 [ 48.536622][ T3022] sp : ffff800012833a50 [ 48.537337][ T3022] x29: ffff800012833a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 48.538757][ T3022] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 48.540215][ T3022] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 48.541643][ T3022] x20: 0000000000000000 x19: ffff0000c5f0f000 x18: ffff80000a3f7ee1 [ 48.542998][ T3022] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.544379][ T3022] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.545773][ T3022] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : da59b4bd92ee1c00 [ 48.547195][ T3022] x8 : da59b4bd92ee1c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.548579][ T3022] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.549976][ T3022] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.551360][ T3022] Call trace: [ 48.551913][ T3022] read_block_bitmap+0xec/0x224 [ 48.552749][ T3022] ext2_free_blocks+0x104/0x368 [ 48.553588][ T3022] __ext2_truncate_blocks+0xb8/0x550 [ 48.554542][ T3022] ext2_write_failed+0xa4/0xc0 [ 48.555360][ T3022] ext2_write_begin+0x54/0x6c [ 48.556179][ T3022] generic_perform_write+0x80/0x1e4 [ 48.557107][ T3022] __generic_file_write_iter+0x7c/0xc0 [ 48.558052][ T3022] generic_file_write_iter+0x50/0xd4 [ 48.558999][ T3022] ext2_file_write_iter+0x10/0x1c [ 48.559877][ T3022] vfs_write+0x1ac/0x2c4 [ 48.560615][ T3022] __arm64_sys_pwrite64+0x84/0xc8 [ 48.561482][ T3022] invoke_syscall+0x40/0xdc [ 48.562266][ T3022] el0_svc_common+0xb0/0xe8 [ 48.563041][ T3022] do_el0_svc+0x24/0x80 [ 48.563773][ T3022] el0_svc+0x34/0xd4 [ 48.564439][ T3022] el0t_64_sync_handler+0x84/0xf0 [ 48.565301][ T3022] el0t_64_sync+0x18c/0x190 [ 48.566062][ T3022] ---[ end trace 0000000000000000 ]--- [ 48.567108][ T3022] ------------[ cut here ]------------ [ 48.567951][ T3022] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.567962][ T3022] WARNING: CPU: 1 PID: 3022 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.570518][ T3022] Modules linked in: [ 48.571132][ T3022] CPU: 1 PID: 3022 Comm: syz.2.26 Tainted: G W syzkaller #0 [ 48.572486][ T3022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.574101][ T3022] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.575350][ T3022] pc : read_block_bitmap+0xec/0x224 [ 48.576233][ T3022] lr : read_block_bitmap+0xe8/0x224 [ 48.577144][ T3022] sp : ffff800012833a50 [ 48.577878][ T3022] x29: ffff800012833a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 48.579292][ T3022] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 48.580754][ T3022] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 48.582120][ T3022] x20: 0000000000000000 x19: ffff0000c5f0f000 x18: ffff80000a3f7ee1 [ 48.583524][ T3022] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.584921][ T3022] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.586345][ T3022] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : da59b4bd92ee1c00 [ 48.587788][ T3022] x8 : da59b4bd92ee1c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.589246][ T3022] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.590688][ T3022] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.592067][ T3022] Call trace: [ 48.592624][ T3022] read_block_bitmap+0xec/0x224 [ 48.593475][ T3022] ext2_free_blocks+0x104/0x368 [ 48.594330][ T3022] __ext2_truncate_blocks+0x154/0x550 [ 48.595299][ T3022] ext2_write_failed+0xa4/0xc0 [ 48.596144][ T3022] ext2_write_begin+0x54/0x6c [ 48.596994][ T3022] generic_perform_write+0x80/0x1e4 [ 48.597902][ T3022] __generic_file_write_iter+0x7c/0xc0 [ 48.598863][ T3022] generic_file_write_iter+0x50/0xd4 [ 48.599805][ T3022] ext2_file_write_iter+0x10/0x1c [ 48.600697][ T3022] vfs_write+0x1ac/0x2c4 [ 48.601451][ T3022] __arm64_sys_pwrite64+0x84/0xc8 [ 48.602332][ T3022] invoke_syscall+0x40/0xdc [ 48.603109][ T3022] el0_svc_common+0xb0/0xe8 [ 48.603884][ T3022] do_el0_svc+0x24/0x80 [ 48.604597][ T3022] el0_svc+0x34/0xd4 [ 48.605265][ T3022] el0t_64_sync_handler+0x84/0xf0 [ 48.606134][ T3022] el0t_64_sync+0x18c/0x190 [ 48.606899][ T3022] ---[ end trace 0000000000000000 ]--- [ 48.617632][ T3024] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 48.618862][ T3024] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 48.620079][ T3024] ext2 filesystem being mounted at /10/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 48.633759][ T3024] ------------[ cut here ]------------ [ 48.634688][ T3024] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.634700][ T3024] WARNING: CPU: 0 PID: 3024 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 48.637743][ T3024] Modules linked in: [ 48.638465][ T3024] CPU: 0 PID: 3024 Comm: syz.2.27 Tainted: G W syzkaller #0 [ 48.640097][ T3024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.641874][ T3024] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.643190][ T3024] pc : ext2_new_blocks+0x418/0x564 [ 48.644074][ T3024] lr : ext2_new_blocks+0x418/0x564 [ 48.644954][ T3024] sp : ffff80001283b8f0 [ 48.645662][ T3024] x29: ffff80001283b940 x28: 0000000000010000 x27: 0000000000000008 [ 48.647067][ T3024] x26: ffff0000d4206400 x25: 0000000000010000 x24: ffff80001283b9f4 [ 48.648466][ T3024] x23: ffff0000c9dde000 x22: 0000000000000000 x21: ffff80001283b9f8 [ 48.649910][ T3024] x20: ffff0000c9d00580 x19: ffff0000c8e7b618 x18: ffff80000a3f7ee1 [ 48.651338][ T3024] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.652751][ T3024] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.654170][ T3024] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 313ccfeb2a3c0a00 [ 48.655617][ T3024] x8 : 313ccfeb2a3c0a00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.657060][ T3024] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.658472][ T3024] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 48.659879][ T3024] Call trace: [ 48.660458][ T3024] ext2_new_blocks+0x418/0x564 [ 48.661291][ T3024] ext2_get_blocks+0x4b4/0x9b0 [ 48.662146][ T3024] ext2_get_block+0x58/0x158 [ 48.662929][ T3024] __block_write_begin_int+0x10c/0x6f0 [ 48.663868][ T3024] block_write_begin+0x5c/0xa4 [ 48.664697][ T3024] ext2_write_begin+0x40/0x6c [ 48.665503][ T3024] generic_perform_write+0x80/0x1e4 [ 48.666410][ T3024] __generic_file_write_iter+0x7c/0xc0 [ 48.667369][ T3024] generic_file_write_iter+0x50/0xd4 [ 48.668270][ T3024] ext2_file_write_iter+0x10/0x1c [ 48.669140][ T3024] vfs_write+0x1ac/0x2c4 [ 48.669865][ T3024] __arm64_sys_pwrite64+0x84/0xc8 [ 48.670740][ T3024] invoke_syscall+0x40/0xdc [ 48.671526][ T3024] el0_svc_common+0xb0/0xe8 [ 48.672314][ T3024] do_el0_svc+0x24/0x80 [ 48.673043][ T3024] el0_svc+0x34/0xd4 [ 48.673723][ T3024] el0t_64_sync_handler+0x84/0xf0 [ 48.674604][ T3024] el0t_64_sync+0x18c/0x190 [ 48.675383][ T3024] ---[ end trace 0000000000000000 ]--- [ 48.676418][ T3024] ------------[ cut here ]------------ [ 48.677265][ T3024] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 48.677288][ T3024] WARNING: CPU: 0 PID: 3024 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.679921][ T3024] Modules linked in: [ 48.680524][ T3024] CPU: 0 PID: 3024 Comm: syz.2.27 Tainted: G W syzkaller #0 [ 48.681856][ T3024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.683396][ T3024] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.684602][ T3024] pc : read_block_bitmap+0xec/0x224 [ 48.685392][ T3024] lr : read_block_bitmap+0xe8/0x224 [ 48.686276][ T3024] sp : ffff80001283ba50 [ 48.687024][ T3024] x29: ffff80001283ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 48.688447][ T3024] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 48.689876][ T3024] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 48.691260][ T3024] x20: 0000000000000000 x19: ffff0000c9dde000 x18: 00000000000b0000 [ 48.692656][ T3024] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000044 [ 48.694046][ T3024] x14: 00000000000b30f6 x13: 00000000023e5b55 x12: ffff80000e90c000 [ 48.695454][ T3024] x11: 0000000000000004 x10: 00000000ffffffff x9 : 313ccfeb2a3c0a00 [ 48.696860][ T3024] x8 : 313ccfeb2a3c0a00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 48.698263][ T3024] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.699723][ T3024] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 48.701193][ T3024] Call trace: [ 48.701764][ T3024] read_block_bitmap+0xec/0x224 [ 48.702628][ T3024] ext2_free_blocks+0x104/0x368 [ 48.703491][ T3024] __ext2_truncate_blocks+0xb8/0x550 [ 48.704455][ T3024] ext2_write_failed+0xa4/0xc0 [ 48.705341][ T3024] ext2_write_begin+0x54/0x6c [ 48.706208][ T3024] generic_perform_write+0x80/0x1e4 [ 48.707130][ T3024] __generic_file_write_iter+0x7c/0xc0 [ 48.708097][ T3024] generic_file_write_iter+0x50/0xd4 [ 48.709054][ T3024] ext2_file_write_iter+0x10/0x1c [ 48.709916][ T3024] vfs_write+0x1ac/0x2c4 [ 48.710647][ T3024] __arm64_sys_pwrite64+0x84/0xc8 [ 48.711565][ T3024] invoke_syscall+0x40/0xdc [ 48.712334][ T3024] el0_svc_common+0xb0/0xe8 [ 48.713140][ T3024] do_el0_svc+0x24/0x80 [ 48.713852][ T3024] el0_svc+0x34/0xd4 [ 48.714508][ T3024] el0t_64_sync_handler+0x84/0xf0 [ 48.715358][ T3024] el0t_64_sync+0x18c/0x190 [ 48.716133][ T3024] ---[ end trace 0000000000000000 ]--- [ 48.717095][ T3024] ------------[ cut here ]------------ [ 48.717916][ T3024] block_group >= groups_count - block_group = 3, groups_count = 1 [ 48.717928][ T3024] WARNING: CPU: 0 PID: 3024 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.720558][ T3024] Modules linked in: [ 48.721167][ T3024] CPU: 0 PID: 3024 Comm: syz.2.27 Tainted: G W syzkaller #0 [ 48.722502][ T3024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.724082][ T3024] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.725312][ T3024] pc : read_block_bitmap+0xec/0x224 [ 48.726210][ T3024] lr : read_block_bitmap+0xe8/0x224 [ 48.727160][ T3024] sp : ffff80001283ba50 [ 48.727878][ T3024] x29: ffff80001283ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 48.729291][ T3024] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 48.730660][ T3024] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 48.732043][ T3024] x20: 0000000000000000 x19: ffff0000c9dde000 x18: ffff80000a3f7ee1 [ 48.733417][ T3024] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.734783][ T3024] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.736163][ T3024] x11: 00000000ffffefff x10: c0000000ffffefff x9 : 313ccfeb2a3c0a00 [ 48.737566][ T3024] x8 : 313ccfeb2a3c0a00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.738972][ T3024] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.740397][ T3024] x2 : 0000000000000000 x1 : ffff80001283b7e0 x0 : 0000000000000000 [ 48.741850][ T3024] Call trace: [ 48.742410][ T3024] read_block_bitmap+0xec/0x224 [ 48.743245][ T3024] ext2_free_blocks+0x104/0x368 [ 48.744064][ T3024] __ext2_truncate_blocks+0xb8/0x550 [ 48.744995][ T3024] ext2_write_failed+0xa4/0xc0 [ 48.745840][ T3024] ext2_write_begin+0x54/0x6c [ 48.746666][ T3024] generic_perform_write+0x80/0x1e4 [ 48.747587][ T3024] __generic_file_write_iter+0x7c/0xc0 [ 48.748532][ T3024] generic_file_write_iter+0x50/0xd4 [ 48.749462][ T3024] ext2_file_write_iter+0x10/0x1c [ 48.750349][ T3024] vfs_write+0x1ac/0x2c4 [ 48.751104][ T3024] __arm64_sys_pwrite64+0x84/0xc8 [ 48.751991][ T3024] invoke_syscall+0x40/0xdc [ 48.752797][ T3024] el0_svc_common+0xb0/0xe8 [ 48.753604][ T3024] do_el0_svc+0x24/0x80 [ 48.754331][ T3024] el0_svc+0x34/0xd4 [ 48.755046][ T3024] el0t_64_sync_handler+0x84/0xf0 [ 48.755932][ T3024] el0t_64_sync+0x18c/0x190 [ 48.756736][ T3024] ---[ end trace 0000000000000000 ]--- [ 48.757986][ T3024] ------------[ cut here ]------------ [ 48.758824][ T3024] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.758835][ T3024] WARNING: CPU: 0 PID: 3024 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.761491][ T3024] Modules linked in: [ 48.762092][ T3024] CPU: 0 PID: 3024 Comm: syz.2.27 Tainted: G W syzkaller #0 [ 48.763452][ T3024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.765010][ T3024] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.766342][ T3024] pc : read_block_bitmap+0xec/0x224 [ 48.767238][ T3024] lr : read_block_bitmap+0xe8/0x224 [ 48.768131][ T3024] sp : ffff80001283ba50 [ 48.768843][ T3024] x29: ffff80001283ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 48.770240][ T3024] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 48.771645][ T3024] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 48.773045][ T3024] x20: 0000000000000000 x19: ffff0000c9dde000 x18: ffff80000a3f7ee1 [ 48.774455][ T3024] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.775909][ T3024] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.777369][ T3024] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 313ccfeb2a3c0a00 [ 48.778876][ T3024] x8 : 313ccfeb2a3c0a00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.780369][ T3024] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.781832][ T3024] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.783290][ T3024] Call trace: [ 48.783875][ T3024] read_block_bitmap+0xec/0x224 [ 48.784734][ T3024] ext2_free_blocks+0x104/0x368 [ 48.785595][ T3024] __ext2_truncate_blocks+0x154/0x550 [ 48.786547][ T3024] ext2_write_failed+0xa4/0xc0 [ 48.787394][ T3024] ext2_write_begin+0x54/0x6c [ 48.788233][ T3024] generic_perform_write+0x80/0x1e4 [ 48.789156][ T3024] __generic_file_write_iter+0x7c/0xc0 [ 48.790135][ T3024] generic_file_write_iter+0x50/0xd4 [ 48.791095][ T3024] ext2_file_write_iter+0x10/0x1c [ 48.791988][ T3024] vfs_write+0x1ac/0x2c4 [ 48.792761][ T3024] __arm64_sys_pwrite64+0x84/0xc8 [ 48.793665][ T3024] invoke_syscall+0x40/0xdc [ 48.794469][ T3024] el0_svc_common+0xb0/0xe8 [ 48.795271][ T3024] do_el0_svc+0x24/0x80 [ 48.796006][ T3024] el0_svc+0x34/0xd4 [ 48.796695][ T3024] el0t_64_sync_handler+0x84/0xf0 [ 48.797602][ T3024] el0t_64_sync+0x18c/0x190 [ 48.798404][ T3024] ---[ end trace 0000000000000000 ]--- [ 48.811501][ T3026] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 48.812775][ T3026] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 48.814108][ T3026] ext2 filesystem being mounted at /11/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 48.819245][ T3026] ------------[ cut here ]------------ [ 48.820151][ T3026] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.820163][ T3026] WARNING: CPU: 0 PID: 3026 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 48.822879][ T3026] Modules linked in: [ 48.823479][ T3026] CPU: 0 PID: 3026 Comm: syz.2.28 Tainted: G W syzkaller #0 [ 48.824854][ T3026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.826565][ T3026] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.828007][ T3026] pc : ext2_new_blocks+0x418/0x564 [ 48.828897][ T3026] lr : ext2_new_blocks+0x418/0x564 [ 48.829786][ T3026] sp : ffff8000128438f0 [ 48.830519][ T3026] x29: ffff800012843940 x28: 0000000000010000 x27: 0000000000000008 [ 48.831932][ T3026] x26: ffff0000d429b400 x25: 0000000000010000 x24: ffff8000128439f4 [ 48.833359][ T3026] x23: ffff0000c9ddf000 x22: 0000000000000000 x21: ffff8000128439f8 [ 48.834790][ T3026] x20: ffff0000c4a9a500 x19: ffff0000c8e7c1d8 x18: ffff80000a3f7ee1 [ 48.836212][ T3026] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.837644][ T3026] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.839066][ T3026] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : b511e2918040c500 [ 48.840444][ T3026] x8 : b511e2918040c500 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.841802][ T3026] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.843185][ T3026] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 48.844576][ T3026] Call trace: [ 48.845142][ T3026] ext2_new_blocks+0x418/0x564 [ 48.845985][ T3026] ext2_get_blocks+0x4b4/0x9b0 [ 48.846821][ T3026] ext2_get_block+0x58/0x158 [ 48.847628][ T3026] __block_write_begin_int+0x10c/0x6f0 [ 48.848547][ T3026] block_write_begin+0x5c/0xa4 [ 48.849329][ T3026] ext2_write_begin+0x40/0x6c [ 48.850131][ T3026] generic_perform_write+0x80/0x1e4 [ 48.851028][ T3026] __generic_file_write_iter+0x7c/0xc0 [ 48.851980][ T3026] generic_file_write_iter+0x50/0xd4 [ 48.852902][ T3026] ext2_file_write_iter+0x10/0x1c [ 48.853775][ T3026] vfs_write+0x1ac/0x2c4 [ 48.854505][ T3026] __arm64_sys_pwrite64+0x84/0xc8 [ 48.855360][ T3026] invoke_syscall+0x40/0xdc [ 48.856138][ T3026] el0_svc_common+0xb0/0xe8 [ 48.856908][ T3026] do_el0_svc+0x24/0x80 [ 48.857620][ T3026] el0_svc+0x34/0xd4 [ 48.858293][ T3026] el0t_64_sync_handler+0x84/0xf0 [ 48.859165][ T3026] el0t_64_sync+0x18c/0x190 [ 48.859981][ T3026] ---[ end trace 0000000000000000 ]--- [ 48.860972][ T3026] ------------[ cut here ]------------ [ 48.861816][ T3026] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 48.861843][ T3026] WARNING: CPU: 0 PID: 3026 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.864597][ T3026] Modules linked in: [ 48.865208][ T3026] CPU: 0 PID: 3026 Comm: syz.2.28 Tainted: G W syzkaller #0 [ 48.866730][ T3026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.868555][ T3026] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.869984][ T3026] pc : read_block_bitmap+0xec/0x224 [ 48.870915][ T3026] lr : read_block_bitmap+0xe8/0x224 [ 48.871868][ T3026] sp : ffff800012843a50 [ 48.872618][ T3026] x29: ffff800012843a50 x28: ffff0000c5eeb000 x27: 0000000000000000 [ 48.874083][ T3026] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 48.875531][ T3026] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 48.876907][ T3026] x20: 0000000000000000 x19: ffff0000c9ddf000 x18: 0000000000000000 [ 48.878318][ T3026] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 48.879773][ T3026] x14: 00000000000ef343 x13: 0000000002c0218a x12: ffff80000e90c000 [ 48.881239][ T3026] x11: 0000000000000004 x10: 00000000ffffffff x9 : b511e2918040c500 [ 48.882719][ T3026] x8 : b511e2918040c500 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 48.884174][ T3026] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.885612][ T3026] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 48.887079][ T3026] Call trace: [ 48.887669][ T3026] read_block_bitmap+0xec/0x224 [ 48.888555][ T3026] ext2_free_blocks+0x104/0x368 [ 48.889458][ T3026] __ext2_truncate_blocks+0xb8/0x550 [ 48.890410][ T3026] ext2_write_failed+0xa4/0xc0 [ 48.891249][ T3026] ext2_write_begin+0x54/0x6c [ 48.892096][ T3026] generic_perform_write+0x80/0x1e4 [ 48.893016][ T3026] __generic_file_write_iter+0x7c/0xc0 [ 48.894020][ T3026] generic_file_write_iter+0x50/0xd4 [ 48.894984][ T3026] ext2_file_write_iter+0x10/0x1c [ 48.895899][ T3026] vfs_write+0x1ac/0x2c4 [ 48.896672][ T3026] __arm64_sys_pwrite64+0x84/0xc8 [ 48.897601][ T3026] invoke_syscall+0x40/0xdc [ 48.898399][ T3026] el0_svc_common+0xb0/0xe8 [ 48.899193][ T3026] do_el0_svc+0x24/0x80 [ 48.899968][ T3026] el0_svc+0x34/0xd4 [ 48.900682][ T3026] el0t_64_sync_handler+0x84/0xf0 [ 48.901747][ T3026] el0t_64_sync+0x18c/0x190 [ 48.902690][ T3026] ---[ end trace 0000000000000000 ]--- [ 48.903868][ T3026] ------------[ cut here ]------------ [ 48.904633][ T3026] block_group >= groups_count - block_group = 3, groups_count = 1 [ 48.904644][ T3026] WARNING: CPU: 0 PID: 3026 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.907497][ T3026] Modules linked in: [ 48.908218][ T3026] CPU: 0 PID: 3026 Comm: syz.2.28 Tainted: G W syzkaller #0 [ 48.909710][ T3026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.911434][ T3026] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.912815][ T3026] pc : read_block_bitmap+0xec/0x224 [ 48.913751][ T3026] lr : read_block_bitmap+0xe8/0x224 [ 48.914659][ T3026] sp : ffff800012843a50 [ 48.915387][ T3026] x29: ffff800012843a50 x28: ffff0000c5eeb000 x27: 0000000000000000 [ 48.916797][ T3026] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 48.918218][ T3026] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 48.919589][ T3026] x20: 0000000000000000 x19: ffff0000c9ddf000 x18: ffff80000a3f7ee1 [ 48.920968][ T3026] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.922370][ T3026] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.923809][ T3026] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : b511e2918040c500 [ 48.925250][ T3026] x8 : b511e2918040c500 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.926627][ T3026] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.928009][ T3026] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.929426][ T3026] Call trace: [ 48.930029][ T3026] read_block_bitmap+0xec/0x224 [ 48.930892][ T3026] ext2_free_blocks+0x104/0x368 [ 48.931759][ T3026] __ext2_truncate_blocks+0xb8/0x550 [ 48.932667][ T3026] ext2_write_failed+0xa4/0xc0 [ 48.933483][ T3026] ext2_write_begin+0x54/0x6c [ 48.934338][ T3026] generic_perform_write+0x80/0x1e4 [ 48.935284][ T3026] __generic_file_write_iter+0x7c/0xc0 [ 48.936241][ T3026] generic_file_write_iter+0x50/0xd4 [ 48.937154][ T3026] ext2_file_write_iter+0x10/0x1c [ 48.938006][ T3026] vfs_write+0x1ac/0x2c4 [ 48.938730][ T3026] __arm64_sys_pwrite64+0x84/0xc8 [ 48.939604][ T3026] invoke_syscall+0x40/0xdc [ 48.940362][ T3026] el0_svc_common+0xb0/0xe8 [ 48.941136][ T3026] do_el0_svc+0x24/0x80 [ 48.941841][ T3026] el0_svc+0x34/0xd4 [ 48.942524][ T3026] el0t_64_sync_handler+0x84/0xf0 [ 48.943382][ T3026] el0t_64_sync+0x18c/0x190 [ 48.944163][ T3026] ---[ end trace 0000000000000000 ]--- [ 48.945167][ T3026] ------------[ cut here ]------------ [ 48.946077][ T3026] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.946090][ T3026] WARNING: CPU: 0 PID: 3026 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 48.948877][ T3026] Modules linked in: [ 48.949537][ T3026] CPU: 0 PID: 3026 Comm: syz.2.28 Tainted: G W syzkaller #0 [ 48.951013][ T3026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.952714][ T3026] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.954098][ T3026] pc : read_block_bitmap+0xec/0x224 [ 48.954999][ T3026] lr : read_block_bitmap+0xe8/0x224 [ 48.955898][ T3026] sp : ffff800012843a50 [ 48.956607][ T3026] x29: ffff800012843a50 x28: ffff0000c5eeb000 x27: 0000000000000000 [ 48.957940][ T3026] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 48.959289][ T3026] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 48.960611][ T3026] x20: 0000000000000000 x19: ffff0000c9ddf000 x18: ffff80000a3f7ee1 [ 48.961967][ T3026] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 48.963349][ T3026] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 48.964723][ T3026] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : b511e2918040c500 [ 48.966123][ T3026] x8 : b511e2918040c500 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 48.967481][ T3026] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 48.968843][ T3026] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 48.970213][ T3026] Call trace: [ 48.970758][ T3026] read_block_bitmap+0xec/0x224 [ 48.971597][ T3026] ext2_free_blocks+0x104/0x368 [ 48.972444][ T3026] __ext2_truncate_blocks+0x154/0x550 [ 48.973393][ T3026] ext2_write_failed+0xa4/0xc0 [ 48.974238][ T3026] ext2_write_begin+0x54/0x6c [ 48.975054][ T3026] generic_perform_write+0x80/0x1e4 [ 48.975965][ T3026] __generic_file_write_iter+0x7c/0xc0 [ 48.976930][ T3026] generic_file_write_iter+0x50/0xd4 [ 48.977879][ T3026] ext2_file_write_iter+0x10/0x1c [ 48.978786][ T3026] vfs_write+0x1ac/0x2c4 [ 48.979575][ T3026] __arm64_sys_pwrite64+0x84/0xc8 [ 48.980462][ T3026] invoke_syscall+0x40/0xdc [ 48.981227][ T3026] el0_svc_common+0xb0/0xe8 [ 48.982021][ T3026] do_el0_svc+0x24/0x80 [ 48.982718][ T3026] el0_svc+0x34/0xd4 [ 48.983362][ T3026] el0t_64_sync_handler+0x84/0xf0 [ 48.984175][ T3026] el0t_64_sync+0x18c/0x190 [ 48.984903][ T3026] ---[ end trace 0000000000000000 ]--- [ 48.989805][ T3028] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 48.991032][ T3028] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 48.992274][ T3028] ext2 filesystem being mounted at /12/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 48.996658][ T3028] ------------[ cut here ]------------ [ 48.997579][ T3028] block_group >= groups_count - block_group = 7, groups_count = 1 [ 48.997591][ T3028] WARNING: CPU: 1 PID: 3028 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 49.000509][ T3028] Modules linked in: [ 49.001157][ T3028] CPU: 1 PID: 3028 Comm: syz.2.29 Tainted: G W syzkaller #0 [ 49.002657][ T3028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.004403][ T3028] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.005750][ T3028] pc : ext2_new_blocks+0x418/0x564 [ 49.006663][ T3028] lr : ext2_new_blocks+0x418/0x564 [ 49.007547][ T3028] sp : ffff80001284b8f0 [ 49.008269][ T3028] x29: ffff80001284b940 x28: 0000000000010000 x27: 0000000000000008 [ 49.009638][ T3028] x26: ffff0000d42d3400 x25: 0000000000010000 x24: ffff80001284b9f4 [ 49.011021][ T3028] x23: ffff0000c5f0c000 x22: 0000000000000000 x21: ffff80001284b9f8 [ 49.012407][ T3028] x20: ffff0000c49c8380 x19: ffff0000c8ef1e98 x18: ffff80000a3f7ee1 [ 49.013812][ T3028] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.015211][ T3028] x14: ffff80000a96b270 x13: 0000000000000004 x12: 0000000b6877b959 [ 49.016593][ T3028] x11: 0000000121ccd9f8 x10: 00000000ffffffff x9 : afa41b6ac3f09f00 [ 49.017952][ T3028] x8 : afa41b6ac3f09f00 x7 : 0000000000000000 x6 : ffff800009978974 [ 49.019269][ T3028] x5 : 0000000000000000 x4 : 0000000000000080 x3 : ffff0001fe9eb428 [ 49.020639][ T3028] x2 : ffff0001fe9eb428 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 49.022076][ T3028] Call trace: [ 49.022648][ T3028] ext2_new_blocks+0x418/0x564 [ 49.023504][ T3028] ext2_get_blocks+0x4b4/0x9b0 [ 49.024330][ T3028] ext2_get_block+0x58/0x158 [ 49.025122][ T3028] __block_write_begin_int+0x10c/0x6f0 [ 49.026078][ T3028] block_write_begin+0x5c/0xa4 [ 49.026923][ T3028] ext2_write_begin+0x40/0x6c [ 49.027740][ T3028] generic_perform_write+0x80/0x1e4 [ 49.028618][ T3028] __generic_file_write_iter+0x7c/0xc0 [ 49.029570][ T3028] generic_file_write_iter+0x50/0xd4 [ 49.030486][ T3028] ext2_file_write_iter+0x10/0x1c [ 49.031345][ T3028] vfs_write+0x1ac/0x2c4 [ 49.032078][ T3028] __arm64_sys_pwrite64+0x84/0xc8 [ 49.032948][ T3028] invoke_syscall+0x40/0xdc [ 49.033743][ T3028] el0_svc_common+0xb0/0xe8 [ 49.034541][ T3028] do_el0_svc+0x24/0x80 [ 49.035263][ T3028] el0_svc+0x34/0xd4 [ 49.035944][ T3028] el0t_64_sync_handler+0x84/0xf0 [ 49.036782][ T3028] el0t_64_sync+0x18c/0x190 [ 49.037557][ T3028] ---[ end trace 0000000000000000 ]--- [ 49.038804][ T3028] ------------[ cut here ]------------ [ 49.039798][ T3028] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 49.039810][ T3028] WARNING: CPU: 1 PID: 3028 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.042635][ T3028] Modules linked in: [ 49.043254][ T3028] CPU: 1 PID: 3028 Comm: syz.2.29 Tainted: G W syzkaller #0 [ 49.044600][ T3028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.046270][ T3028] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.047642][ T3028] pc : read_block_bitmap+0xec/0x224 [ 49.048559][ T3028] lr : read_block_bitmap+0xe8/0x224 [ 49.049467][ T3028] sp : ffff80001284ba50 [ 49.050228][ T3028] x29: ffff80001284ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 49.051586][ T3028] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 49.052939][ T3028] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 49.054330][ T3028] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 49.055675][ T3028] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.057047][ T3028] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.058394][ T3028] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : afa41b6ac3f09f00 [ 49.059754][ T3028] x8 : afa41b6ac3f09f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.061118][ T3028] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.062489][ T3028] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.063883][ T3028] Call trace: [ 49.064441][ T3028] read_block_bitmap+0xec/0x224 [ 49.065293][ T3028] ext2_free_blocks+0x104/0x368 [ 49.066127][ T3028] __ext2_truncate_blocks+0xb8/0x550 [ 49.067017][ T3028] ext2_write_failed+0xa4/0xc0 [ 49.067871][ T3028] ext2_write_begin+0x54/0x6c [ 49.068677][ T3028] generic_perform_write+0x80/0x1e4 [ 49.069588][ T3028] __generic_file_write_iter+0x7c/0xc0 [ 49.070531][ T3028] generic_file_write_iter+0x50/0xd4 [ 49.071451][ T3028] ext2_file_write_iter+0x10/0x1c [ 49.072303][ T3028] vfs_write+0x1ac/0x2c4 [ 49.073105][ T3028] __arm64_sys_pwrite64+0x84/0xc8 [ 49.073981][ T3028] invoke_syscall+0x40/0xdc [ 49.074762][ T3028] el0_svc_common+0xb0/0xe8 [ 49.075532][ T3028] do_el0_svc+0x24/0x80 [ 49.076236][ T3028] el0_svc+0x34/0xd4 [ 49.076908][ T3028] el0t_64_sync_handler+0x84/0xf0 [ 49.077810][ T3028] el0t_64_sync+0x18c/0x190 [ 49.078576][ T3028] ---[ end trace 0000000000000000 ]--- [ 49.079556][ T3028] ------------[ cut here ]------------ [ 49.080406][ T3028] block_group >= groups_count - block_group = 3, groups_count = 1 [ 49.080420][ T3028] WARNING: CPU: 1 PID: 3028 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.083291][ T3028] Modules linked in: [ 49.083945][ T3028] CPU: 1 PID: 3028 Comm: syz.2.29 Tainted: G W syzkaller #0 [ 49.085427][ T3028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.087197][ T3028] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.088581][ T3028] pc : read_block_bitmap+0xec/0x224 [ 49.089472][ T3028] lr : read_block_bitmap+0xe8/0x224 [ 49.090367][ T3028] sp : ffff80001284ba50 [ 49.091068][ T3028] x29: ffff80001284ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 49.092443][ T3028] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 49.093806][ T3028] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 49.095160][ T3028] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 49.096541][ T3028] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.097915][ T3028] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.099309][ T3028] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : afa41b6ac3f09f00 [ 49.100760][ T3028] x8 : afa41b6ac3f09f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.102215][ T3028] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.103646][ T3028] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.105112][ T3028] Call trace: [ 49.105692][ T3028] read_block_bitmap+0xec/0x224 [ 49.106542][ T3028] ext2_free_blocks+0x104/0x368 [ 49.107379][ T3028] __ext2_truncate_blocks+0xb8/0x550 [ 49.108299][ T3028] ext2_write_failed+0xa4/0xc0 [ 49.109132][ T3028] ext2_write_begin+0x54/0x6c [ 49.109946][ T3028] generic_perform_write+0x80/0x1e4 [ 49.110850][ T3028] __generic_file_write_iter+0x7c/0xc0 [ 49.111831][ T3028] generic_file_write_iter+0x50/0xd4 [ 49.112779][ T3028] ext2_file_write_iter+0x10/0x1c [ 49.113682][ T3028] vfs_write+0x1ac/0x2c4 [ 49.114438][ T3028] __arm64_sys_pwrite64+0x84/0xc8 [ 49.115313][ T3028] invoke_syscall+0x40/0xdc [ 49.116320][ T3028] el0_svc_common+0xb0/0xe8 [ 49.117186][ T3028] do_el0_svc+0x24/0x80 [ 49.117996][ T3028] el0_svc+0x34/0xd4 [ 49.118720][ T3028] el0t_64_sync_handler+0x84/0xf0 [ 49.119646][ T3028] el0t_64_sync+0x18c/0x190 [ 49.120426][ T3028] ---[ end trace 0000000000000000 ]--- [ 49.121432][ T3028] ------------[ cut here ]------------ [ 49.122322][ T3028] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.122334][ T3028] WARNING: CPU: 1 PID: 3028 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.124982][ T3028] Modules linked in: [ 49.125636][ T3028] CPU: 1 PID: 3028 Comm: syz.2.29 Tainted: G W syzkaller #0 [ 49.127172][ T3028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.128956][ T3028] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.130292][ T3028] pc : read_block_bitmap+0xec/0x224 [ 49.131206][ T3028] lr : read_block_bitmap+0xe8/0x224 [ 49.132122][ T3028] sp : ffff80001284ba50 [ 49.132829][ T3028] x29: ffff80001284ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 49.134234][ T3028] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 49.135650][ T3028] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 49.137033][ T3028] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 49.138407][ T3028] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.139780][ T3028] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.141189][ T3028] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : afa41b6ac3f09f00 [ 49.142570][ T3028] x8 : afa41b6ac3f09f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.143956][ T3028] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.145333][ T3028] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.146706][ T3028] Call trace: [ 49.147271][ T3028] read_block_bitmap+0xec/0x224 [ 49.148126][ T3028] ext2_free_blocks+0x104/0x368 [ 49.148968][ T3028] __ext2_truncate_blocks+0x154/0x550 [ 49.149912][ T3028] ext2_write_failed+0xa4/0xc0 [ 49.150737][ T3028] ext2_write_begin+0x54/0x6c [ 49.151570][ T3028] generic_perform_write+0x80/0x1e4 [ 49.152503][ T3028] __generic_file_write_iter+0x7c/0xc0 [ 49.153463][ T3028] generic_file_write_iter+0x50/0xd4 [ 49.154397][ T3028] ext2_file_write_iter+0x10/0x1c [ 49.155280][ T3028] vfs_write+0x1ac/0x2c4 [ 49.156050][ T3028] __arm64_sys_pwrite64+0x84/0xc8 [ 49.156915][ T3028] invoke_syscall+0x40/0xdc [ 49.157698][ T3028] el0_svc_common+0xb0/0xe8 [ 49.158484][ T3028] do_el0_svc+0x24/0x80 [ 49.159188][ T3028] el0_svc+0x34/0xd4 [ 49.159884][ T3028] el0t_64_sync_handler+0x84/0xf0 [ 49.160768][ T3028] el0t_64_sync+0x18c/0x190 [ 49.161554][ T3028] ---[ end trace 0000000000000000 ]--- [ 49.165420][ T3030] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 49.166918][ T3030] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 49.168055][ T3030] ext2 filesystem being mounted at /13/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.171861][ T3030] ------------[ cut here ]------------ [ 49.172729][ T3030] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.172742][ T3030] WARNING: CPU: 1 PID: 3030 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 49.175682][ T3030] Modules linked in: [ 49.176399][ T3030] CPU: 1 PID: 3030 Comm: syz.2.30 Tainted: G W syzkaller #0 [ 49.177971][ T3030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.179775][ T3030] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.181251][ T3030] pc : ext2_new_blocks+0x418/0x564 [ 49.182199][ T3030] lr : ext2_new_blocks+0x418/0x564 [ 49.183112][ T3030] sp : ffff8000128538f0 [ 49.183833][ T3030] x29: ffff800012853940 x28: 0000000000010000 x27: 0000000000000008 [ 49.185279][ T3030] x26: ffff0000d4299400 x25: 0000000000010000 x24: ffff8000128539f4 [ 49.186742][ T3030] x23: ffff0000c5f3b000 x22: 0000000000000000 x21: ffff8000128539f8 [ 49.188214][ T3030] x20: ffff0000c45a4300 x19: ffff0000c8ef3038 x18: ffff80000a3f7ee1 [ 49.189679][ T3030] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.191117][ T3030] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.192558][ T3030] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 50ee77fe203f2100 [ 49.194004][ T3030] x8 : 50ee77fe203f2100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.195465][ T3030] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.197120][ T3030] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 49.198532][ T3030] Call trace: [ 49.199102][ T3030] ext2_new_blocks+0x418/0x564 [ 49.199965][ T3030] ext2_get_blocks+0x4b4/0x9b0 [ 49.200809][ T3030] ext2_get_block+0x58/0x158 [ 49.201629][ T3030] __block_write_begin_int+0x10c/0x6f0 [ 49.202606][ T3030] block_write_begin+0x5c/0xa4 [ 49.203448][ T3030] ext2_write_begin+0x40/0x6c [ 49.204261][ T3030] generic_perform_write+0x80/0x1e4 [ 49.205188][ T3030] __generic_file_write_iter+0x7c/0xc0 [ 49.206154][ T3030] generic_file_write_iter+0x50/0xd4 [ 49.207087][ T3030] ext2_file_write_iter+0x10/0x1c [ 49.207980][ T3030] vfs_write+0x1ac/0x2c4 [ 49.208723][ T3030] __arm64_sys_pwrite64+0x84/0xc8 [ 49.209626][ T3030] invoke_syscall+0x40/0xdc [ 49.210410][ T3030] el0_svc_common+0xb0/0xe8 [ 49.211173][ T3030] do_el0_svc+0x24/0x80 [ 49.211877][ T3030] el0_svc+0x34/0xd4 [ 49.212561][ T3030] el0t_64_sync_handler+0x84/0xf0 [ 49.213416][ T3030] el0t_64_sync+0x18c/0x190 [ 49.214208][ T3030] ---[ end trace 0000000000000000 ]--- [ 49.215305][ T3030] ------------[ cut here ]------------ [ 49.216223][ T3030] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 49.216260][ T3030] WARNING: CPU: 1 PID: 3030 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.219333][ T3030] Modules linked in: [ 49.219993][ T3030] CPU: 1 PID: 3030 Comm: syz.2.30 Tainted: G W syzkaller #0 [ 49.221492][ T3030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.223181][ T3030] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.224479][ T3030] pc : read_block_bitmap+0xec/0x224 [ 49.225359][ T3030] lr : read_block_bitmap+0xe8/0x224 [ 49.226266][ T3030] sp : ffff800012853a50 [ 49.226999][ T3030] x29: ffff800012853a50 x28: ffff0000c4151800 x27: 0000000000000000 [ 49.228424][ T3030] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 49.229888][ T3030] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 49.231344][ T3030] x20: 0000000000000000 x19: ffff0000c5f3b000 x18: 0000000000001000 [ 49.232829][ T3030] x17: 0000000000000001 x16: 0000000000000000 x15: 00000000000003d2 [ 49.234287][ T3030] x14: 00000000000fbf8a x13: 0000000002a08cae x12: ffff80000e90c000 [ 49.235721][ T3030] x11: 0000000000000004 x10: 00000000ffffffff x9 : 50ee77fe203f2100 [ 49.237176][ T3030] x8 : 50ee77fe203f2100 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 49.238594][ T3030] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.240043][ T3030] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 49.241477][ T3030] Call trace: [ 49.242060][ T3030] read_block_bitmap+0xec/0x224 [ 49.242942][ T3030] ext2_free_blocks+0x104/0x368 [ 49.243830][ T3030] __ext2_truncate_blocks+0xb8/0x550 [ 49.244801][ T3030] ext2_write_failed+0xa4/0xc0 [ 49.245667][ T3030] ext2_write_begin+0x54/0x6c [ 49.246505][ T3030] generic_perform_write+0x80/0x1e4 [ 49.247439][ T3030] __generic_file_write_iter+0x7c/0xc0 [ 49.248404][ T3030] generic_file_write_iter+0x50/0xd4 [ 49.249348][ T3030] ext2_file_write_iter+0x10/0x1c [ 49.250245][ T3030] vfs_write+0x1ac/0x2c4 [ 49.251001][ T3030] __arm64_sys_pwrite64+0x84/0xc8 [ 49.251892][ T3030] invoke_syscall+0x40/0xdc [ 49.252696][ T3030] el0_svc_common+0xb0/0xe8 [ 49.253501][ T3030] do_el0_svc+0x24/0x80 [ 49.254248][ T3030] el0_svc+0x34/0xd4 [ 49.254948][ T3030] el0t_64_sync_handler+0x84/0xf0 [ 49.255854][ T3030] el0t_64_sync+0x18c/0x190 [ 49.256663][ T3030] ---[ end trace 0000000000000000 ]--- [ 49.257660][ T3030] ------------[ cut here ]------------ [ 49.258500][ T3030] block_group >= groups_count - block_group = 3, groups_count = 1 [ 49.258513][ T3030] WARNING: CPU: 1 PID: 3030 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.261164][ T3030] Modules linked in: [ 49.261795][ T3030] CPU: 1 PID: 3030 Comm: syz.2.30 Tainted: G W syzkaller #0 [ 49.263137][ T3030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.264733][ T3030] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.266047][ T3030] pc : read_block_bitmap+0xec/0x224 [ 49.266982][ T3030] lr : read_block_bitmap+0xe8/0x224 [ 49.267908][ T3030] sp : ffff800012853a50 [ 49.268653][ T3030] x29: ffff800012853a50 x28: ffff0000c4151800 x27: 0000000000000000 [ 49.270060][ T3030] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 49.271438][ T3030] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 49.272874][ T3030] x20: 0000000000000000 x19: ffff0000c5f3b000 x18: ffff80000a3f7ee1 [ 49.274231][ T3030] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.275610][ T3030] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.277094][ T3030] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 50ee77fe203f2100 [ 49.278485][ T3030] x8 : 50ee77fe203f2100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.279887][ T3030] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.281253][ T3030] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.282682][ T3030] Call trace: [ 49.283258][ T3030] read_block_bitmap+0xec/0x224 [ 49.284097][ T3030] ext2_free_blocks+0x104/0x368 [ 49.284939][ T3030] __ext2_truncate_blocks+0xb8/0x550 [ 49.285889][ T3030] ext2_write_failed+0xa4/0xc0 [ 49.286748][ T3030] ext2_write_begin+0x54/0x6c [ 49.287582][ T3030] generic_perform_write+0x80/0x1e4 [ 49.288465][ T3030] __generic_file_write_iter+0x7c/0xc0 [ 49.289405][ T3030] generic_file_write_iter+0x50/0xd4 [ 49.290342][ T3030] ext2_file_write_iter+0x10/0x1c [ 49.291285][ T3030] vfs_write+0x1ac/0x2c4 [ 49.292017][ T3030] __arm64_sys_pwrite64+0x84/0xc8 [ 49.292872][ T3030] invoke_syscall+0x40/0xdc [ 49.293653][ T3030] el0_svc_common+0xb0/0xe8 [ 49.294438][ T3030] do_el0_svc+0x24/0x80 [ 49.295154][ T3030] el0_svc+0x34/0xd4 [ 49.295823][ T3030] el0t_64_sync_handler+0x84/0xf0 [ 49.296701][ T3030] el0t_64_sync+0x18c/0x190 [ 49.297483][ T3030] ---[ end trace 0000000000000000 ]--- [ 49.298458][ T3030] ------------[ cut here ]------------ [ 49.299309][ T3030] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.299321][ T3030] WARNING: CPU: 1 PID: 3030 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.302007][ T3030] Modules linked in: [ 49.302626][ T3030] CPU: 1 PID: 3030 Comm: syz.2.30 Tainted: G W syzkaller #0 [ 49.303957][ T3030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.305519][ T3030] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.306889][ T3030] pc : read_block_bitmap+0xec/0x224 [ 49.307790][ T3030] lr : read_block_bitmap+0xe8/0x224 [ 49.308720][ T3030] sp : ffff800012853a50 [ 49.309422][ T3030] x29: ffff800012853a50 x28: ffff0000c4151800 x27: 0000000000000000 [ 49.310777][ T3030] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 49.312201][ T3030] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 49.313632][ T3030] x20: 0000000000000000 x19: ffff0000c5f3b000 x18: ffff80000a3f7ee1 [ 49.315081][ T3030] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.316515][ T3030] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.317938][ T3030] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 50ee77fe203f2100 [ 49.319365][ T3030] x8 : 50ee77fe203f2100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.320797][ T3030] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.322231][ T3030] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.323637][ T3030] Call trace: [ 49.324198][ T3030] read_block_bitmap+0xec/0x224 [ 49.325037][ T3030] ext2_free_blocks+0x104/0x368 [ 49.325896][ T3030] __ext2_truncate_blocks+0x154/0x550 [ 49.326846][ T3030] ext2_write_failed+0xa4/0xc0 [ 49.327701][ T3030] ext2_write_begin+0x54/0x6c [ 49.328508][ T3030] generic_perform_write+0x80/0x1e4 [ 49.329424][ T3030] __generic_file_write_iter+0x7c/0xc0 [ 49.330414][ T3030] generic_file_write_iter+0x50/0xd4 [ 49.331354][ T3030] ext2_file_write_iter+0x10/0x1c [ 49.332222][ T3030] vfs_write+0x1ac/0x2c4 [ 49.332947][ T3030] __arm64_sys_pwrite64+0x84/0xc8 [ 49.333824][ T3030] invoke_syscall+0x40/0xdc [ 49.334589][ T3030] el0_svc_common+0xb0/0xe8 [ 49.335368][ T3030] do_el0_svc+0x24/0x80 [ 49.336088][ T3030] el0_svc+0x34/0xd4 [ 49.336766][ T3030] el0t_64_sync_handler+0x84/0xf0 [ 49.337651][ T3030] el0t_64_sync+0x18c/0x190 [ 49.338442][ T3030] ---[ end trace 0000000000000000 ]--- [ 49.346357][ T3032] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 49.353300][ T3032] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 49.355616][ T3032] ext2 filesystem being mounted at /14/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.359555][ T3032] ------------[ cut here ]------------ [ 49.360447][ T3032] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.360460][ T3032] WARNING: CPU: 0 PID: 3032 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 49.363279][ T3032] Modules linked in: [ 49.363995][ T3032] CPU: 0 PID: 3032 Comm: syz.2.31 Tainted: G W syzkaller #0 [ 49.365550][ T3032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.367372][ T3032] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.368766][ T3032] pc : ext2_new_blocks+0x418/0x564 [ 49.369666][ T3032] lr : ext2_new_blocks+0x418/0x564 [ 49.370565][ T3032] sp : ffff8000121f38f0 [ 49.371302][ T3032] x29: ffff8000121f3940 x28: 0000000000010000 x27: 0000000000000008 [ 49.372709][ T3032] x26: ffff0000d4223400 x25: 0000000000010000 x24: ffff8000121f39f4 [ 49.374140][ T3032] x23: ffff0000c5f0c000 x22: 0000000000000000 x21: ffff8000121f39f8 [ 49.375610][ T3032] x20: ffff0000c4752e80 x19: ffff0000c8e7c7b8 x18: ffff80000a3f7ee1 [ 49.377101][ T3032] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.378520][ T3032] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.379944][ T3032] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 9f2f61542d4a7f00 [ 49.381360][ T3032] x8 : 9f2f61542d4a7f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.382734][ T3032] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.384120][ T3032] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 49.385528][ T3032] Call trace: [ 49.386098][ T3032] ext2_new_blocks+0x418/0x564 [ 49.386925][ T3032] ext2_get_blocks+0x4b4/0x9b0 [ 49.387752][ T3032] ext2_get_block+0x58/0x158 [ 49.388539][ T3032] __block_write_begin_int+0x10c/0x6f0 [ 49.389490][ T3032] block_write_begin+0x5c/0xa4 [ 49.390311][ T3032] ext2_write_begin+0x40/0x6c [ 49.391117][ T3032] generic_perform_write+0x80/0x1e4 [ 49.392006][ T3032] __generic_file_write_iter+0x7c/0xc0 [ 49.392947][ T3032] generic_file_write_iter+0x50/0xd4 [ 49.393869][ T3032] ext2_file_write_iter+0x10/0x1c [ 49.394750][ T3032] vfs_write+0x1ac/0x2c4 [ 49.395516][ T3032] __arm64_sys_pwrite64+0x84/0xc8 [ 49.396405][ T3032] invoke_syscall+0x40/0xdc [ 49.397190][ T3032] el0_svc_common+0xb0/0xe8 [ 49.398041][ T3032] do_el0_svc+0x24/0x80 [ 49.398779][ T3032] el0_svc+0x34/0xd4 [ 49.399442][ T3032] el0t_64_sync_handler+0x84/0xf0 [ 49.400316][ T3032] el0t_64_sync+0x18c/0x190 [ 49.401103][ T3032] ---[ end trace 0000000000000000 ]--- [ 49.402429][ T3032] ------------[ cut here ]------------ [ 49.403287][ T3032] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 49.403302][ T3032] WARNING: CPU: 0 PID: 3032 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.406059][ T3032] Modules linked in: [ 49.406756][ T3032] CPU: 0 PID: 3032 Comm: syz.2.31 Tainted: G W syzkaller #0 [ 49.408338][ T3032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.410112][ T3032] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.411497][ T3032] pc : read_block_bitmap+0xec/0x224 [ 49.412437][ T3032] lr : read_block_bitmap+0xe8/0x224 [ 49.413346][ T3032] sp : ffff8000121f3a50 [ 49.414107][ T3032] x29: ffff8000121f3a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 49.415527][ T3032] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 49.416947][ T3032] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 49.418384][ T3032] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 49.419828][ T3032] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.421262][ T3032] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.422654][ T3032] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 9f2f61542d4a7f00 [ 49.424051][ T3032] x8 : 9f2f61542d4a7f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.425445][ T3032] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.426862][ T3032] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.428247][ T3032] Call trace: [ 49.428817][ T3032] read_block_bitmap+0xec/0x224 [ 49.429646][ T3032] ext2_free_blocks+0x104/0x368 [ 49.430495][ T3032] __ext2_truncate_blocks+0xb8/0x550 [ 49.431447][ T3032] ext2_write_failed+0xa4/0xc0 [ 49.432279][ T3032] ext2_write_begin+0x54/0x6c [ 49.433113][ T3032] generic_perform_write+0x80/0x1e4 [ 49.434036][ T3032] __generic_file_write_iter+0x7c/0xc0 [ 49.434991][ T3032] generic_file_write_iter+0x50/0xd4 [ 49.435899][ T3032] ext2_file_write_iter+0x10/0x1c [ 49.436750][ T3032] vfs_write+0x1ac/0x2c4 [ 49.437467][ T3032] __arm64_sys_pwrite64+0x84/0xc8 [ 49.438302][ T3032] invoke_syscall+0x40/0xdc [ 49.439075][ T3032] el0_svc_common+0xb0/0xe8 [ 49.439841][ T3032] do_el0_svc+0x24/0x80 [ 49.440551][ T3032] el0_svc+0x34/0xd4 [ 49.441208][ T3032] el0t_64_sync_handler+0x84/0xf0 [ 49.442065][ T3032] el0t_64_sync+0x18c/0x190 [ 49.442797][ T3032] ---[ end trace 0000000000000000 ]--- [ 49.443787][ T3032] ------------[ cut here ]------------ [ 49.444648][ T3032] block_group >= groups_count - block_group = 3, groups_count = 1 [ 49.444659][ T3032] WARNING: CPU: 0 PID: 3032 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.447691][ T3032] Modules linked in: [ 49.448384][ T3032] CPU: 0 PID: 3032 Comm: syz.2.31 Tainted: G W syzkaller #0 [ 49.449896][ T3032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.451668][ T3032] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.452973][ T3032] pc : read_block_bitmap+0xec/0x224 [ 49.453857][ T3032] lr : read_block_bitmap+0xe8/0x224 [ 49.454757][ T3032] sp : ffff8000121f3a50 [ 49.455483][ T3032] x29: ffff8000121f3a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 49.456889][ T3032] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 49.458325][ T3032] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 49.459765][ T3032] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 49.461227][ T3032] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.462660][ T3032] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.464139][ T3032] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 9f2f61542d4a7f00 [ 49.465539][ T3032] x8 : 9f2f61542d4a7f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.466938][ T3032] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.468326][ T3032] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.469689][ T3032] Call trace: [ 49.470241][ T3032] read_block_bitmap+0xec/0x224 [ 49.471077][ T3032] ext2_free_blocks+0x104/0x368 [ 49.471922][ T3032] __ext2_truncate_blocks+0xb8/0x550 [ 49.472855][ T3032] ext2_write_failed+0xa4/0xc0 [ 49.473691][ T3032] ext2_write_begin+0x54/0x6c [ 49.474542][ T3032] generic_perform_write+0x80/0x1e4 [ 49.475482][ T3032] __generic_file_write_iter+0x7c/0xc0 [ 49.476474][ T3032] generic_file_write_iter+0x50/0xd4 [ 49.477420][ T3032] ext2_file_write_iter+0x10/0x1c [ 49.478292][ T3032] vfs_write+0x1ac/0x2c4 [ 49.479030][ T3032] __arm64_sys_pwrite64+0x84/0xc8 [ 49.479907][ T3032] invoke_syscall+0x40/0xdc [ 49.480692][ T3032] el0_svc_common+0xb0/0xe8 [ 49.481442][ T3032] do_el0_svc+0x24/0x80 [ 49.482156][ T3032] el0_svc+0x34/0xd4 [ 49.482810][ T3032] el0t_64_sync_handler+0x84/0xf0 [ 49.483678][ T3032] el0t_64_sync+0x18c/0x190 [ 49.484440][ T3032] ---[ end trace 0000000000000000 ]--- [ 49.485430][ T3032] ------------[ cut here ]------------ [ 49.486392][ T3032] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.486406][ T3032] WARNING: CPU: 0 PID: 3032 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.488968][ T3032] Modules linked in: [ 49.489543][ T3032] CPU: 0 PID: 3032 Comm: syz.2.31 Tainted: G W syzkaller #0 [ 49.490895][ T3032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.492419][ T3032] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.493597][ T3032] pc : read_block_bitmap+0xec/0x224 [ 49.494342][ T3032] lr : read_block_bitmap+0xe8/0x224 [ 49.495112][ T3032] sp : ffff8000121f3a50 [ 49.495736][ T3032] x29: ffff8000121f3a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 49.497185][ T3032] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 49.498605][ T3032] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 49.500012][ T3032] x20: 0000000000000000 x19: ffff0000c5f0c000 x18: ffff80000a3f7ee1 [ 49.501423][ T3032] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.502831][ T3032] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.504258][ T3032] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 9f2f61542d4a7f00 [ 49.505670][ T3032] x8 : 9f2f61542d4a7f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.507088][ T3032] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.508492][ T3032] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.509984][ T3032] Call trace: [ 49.510576][ T3032] read_block_bitmap+0xec/0x224 [ 49.511412][ T3032] ext2_free_blocks+0x104/0x368 [ 49.512259][ T3032] __ext2_truncate_blocks+0x154/0x550 [ 49.513195][ T3032] ext2_write_failed+0xa4/0xc0 [ 49.514033][ T3032] ext2_write_begin+0x54/0x6c [ 49.514876][ T3032] generic_perform_write+0x80/0x1e4 [ 49.515817][ T3032] __generic_file_write_iter+0x7c/0xc0 [ 49.516789][ T3032] generic_file_write_iter+0x50/0xd4 [ 49.517700][ T3032] ext2_file_write_iter+0x10/0x1c [ 49.518555][ T3032] vfs_write+0x1ac/0x2c4 [ 49.519254][ T3032] __arm64_sys_pwrite64+0x84/0xc8 [ 49.520115][ T3032] invoke_syscall+0x40/0xdc [ 49.520892][ T3032] el0_svc_common+0xb0/0xe8 [ 49.521679][ T3032] do_el0_svc+0x24/0x80 [ 49.522419][ T3032] el0_svc+0x34/0xd4 [ 49.523122][ T3032] el0t_64_sync_handler+0x84/0xf0 [ 49.524017][ T3032] el0t_64_sync+0x18c/0x190 [ 49.524812][ T3032] ---[ end trace 0000000000000000 ]--- [ 49.533131][ T3036] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 49.534333][ T3036] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 49.535544][ T3036] ext2 filesystem being mounted at /16/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.539867][ T3036] ------------[ cut here ]------------ [ 49.540726][ T3036] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.540740][ T3036] WARNING: CPU: 0 PID: 3036 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 49.543372][ T3036] Modules linked in: [ 49.544000][ T3036] CPU: 0 PID: 3036 Comm: syz.2.33 Tainted: G W syzkaller #0 [ 49.545301][ T3036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.547035][ T3036] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.548410][ T3036] pc : ext2_new_blocks+0x418/0x564 [ 49.549298][ T3036] lr : ext2_new_blocks+0x418/0x564 [ 49.550220][ T3036] sp : ffff8000128538f0 [ 49.550953][ T3036] x29: ffff800012853940 x28: 0000000000010000 x27: 0000000000000008 [ 49.552379][ T3036] x26: ffff0000d42bf400 x25: 0000000000010000 x24: ffff8000128539f4 [ 49.553759][ T3036] x23: ffff0000c9ddd000 x22: 0000000000000000 x21: ffff8000128539f8 [ 49.555164][ T3036] x20: ffff0000c5e89c00 x19: ffff0000c8e7d378 x18: ffff80000a3f7ee1 [ 49.556544][ T3036] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.557915][ T3036] x14: ffff80000a96b270 x13: 0000000000000004 x12: 0000000b88d77e9c [ 49.559280][ T3036] x11: 000000012982fe66 x10: 00000000ffffffff x9 : 2c3dc05005609200 [ 49.560641][ T3036] x8 : 2c3dc05005609200 x7 : 0000000000000000 x6 : ffff800009978974 [ 49.562065][ T3036] x5 : 0000000000000000 x4 : 0000000000000080 x3 : ffff0001fe9d4428 [ 49.563442][ T3036] x2 : ffff0001fe9d4428 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 49.564836][ T3036] Call trace: [ 49.565383][ T3036] ext2_new_blocks+0x418/0x564 [ 49.566193][ T3036] ext2_get_blocks+0x4b4/0x9b0 [ 49.567003][ T3036] ext2_get_block+0x58/0x158 [ 49.567794][ T3036] __block_write_begin_int+0x10c/0x6f0 [ 49.568750][ T3036] block_write_begin+0x5c/0xa4 [ 49.569585][ T3036] ext2_write_begin+0x40/0x6c [ 49.570397][ T3036] generic_perform_write+0x80/0x1e4 [ 49.571305][ T3036] __generic_file_write_iter+0x7c/0xc0 [ 49.572245][ T3036] generic_file_write_iter+0x50/0xd4 [ 49.573160][ T3036] ext2_file_write_iter+0x10/0x1c [ 49.574061][ T3036] vfs_write+0x1ac/0x2c4 [ 49.574817][ T3036] __arm64_sys_pwrite64+0x84/0xc8 [ 49.575726][ T3036] invoke_syscall+0x40/0xdc [ 49.576543][ T3036] el0_svc_common+0xb0/0xe8 [ 49.577341][ T3036] do_el0_svc+0x24/0x80 [ 49.578073][ T3036] el0_svc+0x34/0xd4 [ 49.578747][ T3036] el0t_64_sync_handler+0x84/0xf0 [ 49.579624][ T3036] el0t_64_sync+0x18c/0x190 [ 49.580394][ T3036] ---[ end trace 0000000000000000 ]--- [ 49.581661][ T3036] ------------[ cut here ]------------ [ 49.582519][ T3036] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 49.582532][ T3036] WARNING: CPU: 0 PID: 3036 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.585312][ T3036] Modules linked in: [ 49.585984][ T3036] CPU: 0 PID: 3036 Comm: syz.2.33 Tainted: G W syzkaller #0 [ 49.587552][ T3036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.589370][ T3036] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.590813][ T3036] pc : read_block_bitmap+0xec/0x224 [ 49.591726][ T3036] lr : read_block_bitmap+0xe8/0x224 [ 49.592669][ T3036] sp : ffff800012853a50 [ 49.593421][ T3036] x29: ffff800012853a50 x28: ffff0000c5eeb800 x27: 0000000000000000 [ 49.594900][ T3036] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 49.596388][ T3036] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 49.597874][ T3036] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 49.599348][ T3036] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.600766][ T3036] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.602172][ T3036] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 2c3dc05005609200 [ 49.603659][ T3036] x8 : 2c3dc05005609200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.605163][ T3036] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.606578][ T3036] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.607986][ T3036] Call trace: [ 49.608555][ T3036] read_block_bitmap+0xec/0x224 [ 49.609407][ T3036] ext2_free_blocks+0x104/0x368 [ 49.610265][ T3036] __ext2_truncate_blocks+0xb8/0x550 [ 49.611213][ T3036] ext2_write_failed+0xa4/0xc0 [ 49.612094][ T3036] ext2_write_begin+0x54/0x6c [ 49.612941][ T3036] generic_perform_write+0x80/0x1e4 [ 49.613862][ T3036] __generic_file_write_iter+0x7c/0xc0 [ 49.614835][ T3036] generic_file_write_iter+0x50/0xd4 [ 49.615784][ T3036] ext2_file_write_iter+0x10/0x1c [ 49.616666][ T3036] vfs_write+0x1ac/0x2c4 [ 49.617411][ T3036] __arm64_sys_pwrite64+0x84/0xc8 [ 49.618287][ T3036] invoke_syscall+0x40/0xdc [ 49.619074][ T3036] el0_svc_common+0xb0/0xe8 [ 49.619844][ T3036] do_el0_svc+0x24/0x80 [ 49.620555][ T3036] el0_svc+0x34/0xd4 [ 49.621236][ T3036] el0t_64_sync_handler+0x84/0xf0 [ 49.622088][ T3036] el0t_64_sync+0x18c/0x190 [ 49.622851][ T3036] ---[ end trace 0000000000000000 ]--- [ 49.623833][ T3036] ------------[ cut here ]------------ [ 49.624633][ T3036] block_group >= groups_count - block_group = 3, groups_count = 1 [ 49.624645][ T3036] WARNING: CPU: 0 PID: 3036 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.627560][ T3036] Modules linked in: [ 49.628258][ T3036] CPU: 0 PID: 3036 Comm: syz.2.33 Tainted: G W syzkaller #0 [ 49.629819][ T3036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.631655][ T3036] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.633083][ T3036] pc : read_block_bitmap+0xec/0x224 [ 49.634051][ T3036] lr : read_block_bitmap+0xe8/0x224 [ 49.635022][ T3036] sp : ffff800012853a50 [ 49.635771][ T3036] x29: ffff800012853a50 x28: ffff0000c5eeb800 x27: 0000000000000000 [ 49.637220][ T3036] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 49.638645][ T3036] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 49.640036][ T3036] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 49.641420][ T3036] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.642826][ T3036] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.644207][ T3036] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 2c3dc05005609200 [ 49.645577][ T3036] x8 : 2c3dc05005609200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.647030][ T3036] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.648464][ T3036] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.649881][ T3036] Call trace: [ 49.650460][ T3036] read_block_bitmap+0xec/0x224 [ 49.651328][ T3036] ext2_free_blocks+0x104/0x368 [ 49.652196][ T3036] __ext2_truncate_blocks+0xb8/0x550 [ 49.653123][ T3036] ext2_write_failed+0xa4/0xc0 [ 49.653965][ T3036] ext2_write_begin+0x54/0x6c [ 49.654796][ T3036] generic_perform_write+0x80/0x1e4 [ 49.655733][ T3036] __generic_file_write_iter+0x7c/0xc0 [ 49.656714][ T3036] generic_file_write_iter+0x50/0xd4 [ 49.657655][ T3036] ext2_file_write_iter+0x10/0x1c [ 49.658563][ T3036] vfs_write+0x1ac/0x2c4 [ 49.659307][ T3036] __arm64_sys_pwrite64+0x84/0xc8 [ 49.660161][ T3036] invoke_syscall+0x40/0xdc [ 49.660921][ T3036] el0_svc_common+0xb0/0xe8 [ 49.661681][ T3036] do_el0_svc+0x24/0x80 [ 49.662391][ T3036] el0_svc+0x34/0xd4 [ 49.663065][ T3036] el0t_64_sync_handler+0x84/0xf0 [ 49.663933][ T3036] el0t_64_sync+0x18c/0x190 [ 49.664704][ T3036] ---[ end trace 0000000000000000 ]--- [ 49.665671][ T3036] ------------[ cut here ]------------ [ 49.666492][ T3036] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.666503][ T3036] WARNING: CPU: 0 PID: 3036 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.669428][ T3036] Modules linked in: [ 49.670049][ T3036] CPU: 0 PID: 3036 Comm: syz.2.33 Tainted: G W syzkaller #0 [ 49.671459][ T3036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.673100][ T3036] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.674377][ T3036] pc : read_block_bitmap+0xec/0x224 [ 49.675240][ T3036] lr : read_block_bitmap+0xe8/0x224 [ 49.676171][ T3036] sp : ffff800012853a50 [ 49.676909][ T3036] x29: ffff800012853a50 x28: ffff0000c5eeb800 x27: 0000000000000000 [ 49.678289][ T3036] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 49.679723][ T3036] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 49.681114][ T3036] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 49.682489][ T3036] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.683881][ T3036] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.685285][ T3036] x11: 00000000ffffefff x10: c0000000ffffefff x9 : 2c3dc05005609200 [ 49.686709][ T3036] x8 : 2c3dc05005609200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.688107][ T3036] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.689525][ T3036] x2 : 0000000000000000 x1 : ffff8000128537e0 x0 : 0000000000000000 [ 49.690947][ T3036] Call trace: [ 49.691527][ T3036] read_block_bitmap+0xec/0x224 [ 49.692381][ T3036] ext2_free_blocks+0x104/0x368 [ 49.693214][ T3036] __ext2_truncate_blocks+0x154/0x550 [ 49.694115][ T3036] ext2_write_failed+0xa4/0xc0 [ 49.694935][ T3036] ext2_write_begin+0x54/0x6c [ 49.695749][ T3036] generic_perform_write+0x80/0x1e4 [ 49.696687][ T3036] __generic_file_write_iter+0x7c/0xc0 [ 49.697618][ T3036] generic_file_write_iter+0x50/0xd4 [ 49.698513][ T3036] ext2_file_write_iter+0x10/0x1c [ 49.699370][ T3036] vfs_write+0x1ac/0x2c4 [ 49.700133][ T3036] __arm64_sys_pwrite64+0x84/0xc8 [ 49.701004][ T3036] invoke_syscall+0x40/0xdc [ 49.701786][ T3036] el0_svc_common+0xb0/0xe8 [ 49.702577][ T3036] do_el0_svc+0x24/0x80 [ 49.703305][ T3036] el0_svc+0x34/0xd4 [ 49.704003][ T3036] el0t_64_sync_handler+0x84/0xf0 [ 49.704901][ T3036] el0t_64_sync+0x18c/0x190 [ 49.705699][ T3036] ---[ end trace 0000000000000000 ]--- [ 49.716761][ T3038] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 49.718386][ T3038] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 49.722058][ T3038] ext2 filesystem being mounted at /17/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.729505][ T3038] ------------[ cut here ]------------ [ 49.730392][ T3038] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.730403][ T3038] WARNING: CPU: 0 PID: 3038 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 49.733012][ T3038] Modules linked in: [ 49.733613][ T3038] CPU: 0 PID: 3038 Comm: syz.2.34 Tainted: G W syzkaller #0 [ 49.734937][ T3038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.736658][ T3038] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.738049][ T3038] pc : ext2_new_blocks+0x418/0x564 [ 49.738950][ T3038] lr : ext2_new_blocks+0x418/0x564 [ 49.739864][ T3038] sp : ffff80001282b8f0 [ 49.740615][ T3038] x29: ffff80001282b940 x28: 0000000000010000 x27: 0000000000000008 [ 49.742040][ T3038] x26: ffff0000d42ac400 x25: 0000000000010000 x24: ffff80001282b9f4 [ 49.743473][ T3038] x23: ffff0000c9ddc000 x22: 0000000000000000 x21: ffff80001282b9f8 [ 49.744910][ T3038] x20: ffff0000c5e94a00 x19: ffff0000c8e7df38 x18: ffff80000a3f7ee1 [ 49.746356][ T3038] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.747792][ T3038] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.749284][ T3038] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 71638a5452574b00 [ 49.750714][ T3038] x8 : 71638a5452574b00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.752157][ T3038] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.753593][ T3038] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 49.755020][ T3038] Call trace: [ 49.755579][ T3038] ext2_new_blocks+0x418/0x564 [ 49.756419][ T3038] ext2_get_blocks+0x4b4/0x9b0 [ 49.757288][ T3038] ext2_get_block+0x58/0x158 [ 49.758100][ T3038] __block_write_begin_int+0x10c/0x6f0 [ 49.759074][ T3038] block_write_begin+0x5c/0xa4 [ 49.759913][ T3038] ext2_write_begin+0x40/0x6c [ 49.760727][ T3038] generic_perform_write+0x80/0x1e4 [ 49.761635][ T3038] __generic_file_write_iter+0x7c/0xc0 [ 49.762596][ T3038] generic_file_write_iter+0x50/0xd4 [ 49.763503][ T3038] ext2_file_write_iter+0x10/0x1c [ 49.764380][ T3038] vfs_write+0x1ac/0x2c4 [ 49.765109][ T3038] __arm64_sys_pwrite64+0x84/0xc8 [ 49.766001][ T3038] invoke_syscall+0x40/0xdc [ 49.766787][ T3038] el0_svc_common+0xb0/0xe8 [ 49.767583][ T3038] do_el0_svc+0x24/0x80 [ 49.768314][ T3038] el0_svc+0x34/0xd4 [ 49.768999][ T3038] el0t_64_sync_handler+0x84/0xf0 [ 49.769899][ T3038] el0t_64_sync+0x18c/0x190 [ 49.770707][ T3038] ---[ end trace 0000000000000000 ]--- [ 49.771940][ T3038] ------------[ cut here ]------------ [ 49.772792][ T3038] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 49.772802][ T3038] WARNING: CPU: 0 PID: 3038 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.775472][ T3038] Modules linked in: [ 49.776150][ T3038] CPU: 0 PID: 3038 Comm: syz.2.34 Tainted: G W syzkaller #0 [ 49.777672][ T3038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.779402][ T3038] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.780760][ T3038] pc : read_block_bitmap+0xec/0x224 [ 49.781645][ T3038] lr : read_block_bitmap+0xe8/0x224 [ 49.782553][ T3038] sp : ffff80001282ba50 [ 49.783301][ T3038] x29: ffff80001282ba50 x28: ffff0000c5ee8800 x27: 0000000000000000 [ 49.784717][ T3038] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 49.786174][ T3038] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 49.787553][ T3038] x20: 0000000000000000 x19: ffff0000c9ddc000 x18: ffff80000a3f7ee1 [ 49.788942][ T3038] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.790333][ T3038] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.791701][ T3038] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 71638a5452574b00 [ 49.793099][ T3038] x8 : 71638a5452574b00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.794501][ T3038] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.795926][ T3038] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.797318][ T3038] Call trace: [ 49.797886][ T3038] read_block_bitmap+0xec/0x224 [ 49.798739][ T3038] ext2_free_blocks+0x104/0x368 [ 49.799575][ T3038] __ext2_truncate_blocks+0xb8/0x550 [ 49.800508][ T3038] ext2_write_failed+0xa4/0xc0 [ 49.801336][ T3038] ext2_write_begin+0x54/0x6c [ 49.802142][ T3038] generic_perform_write+0x80/0x1e4 [ 49.803046][ T3038] __generic_file_write_iter+0x7c/0xc0 [ 49.803984][ T3038] generic_file_write_iter+0x50/0xd4 [ 49.804894][ T3038] ext2_file_write_iter+0x10/0x1c [ 49.805753][ T3038] vfs_write+0x1ac/0x2c4 [ 49.806477][ T3038] __arm64_sys_pwrite64+0x84/0xc8 [ 49.807306][ T3038] invoke_syscall+0x40/0xdc [ 49.808057][ T3038] el0_svc_common+0xb0/0xe8 [ 49.808811][ T3038] do_el0_svc+0x24/0x80 [ 49.809508][ T3038] el0_svc+0x34/0xd4 [ 49.810178][ T3038] el0t_64_sync_handler+0x84/0xf0 [ 49.811045][ T3038] el0t_64_sync+0x18c/0x190 [ 49.811879][ T3038] ---[ end trace 0000000000000000 ]--- [ 49.813161][ T3038] ------------[ cut here ]------------ [ 49.814023][ T3038] block_group >= groups_count - block_group = 3, groups_count = 1 [ 49.814034][ T3038] WARNING: CPU: 0 PID: 3038 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.816768][ T3038] Modules linked in: [ 49.817431][ T3038] CPU: 0 PID: 3038 Comm: syz.2.34 Tainted: G W syzkaller #0 [ 49.818935][ T3038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.820687][ T3038] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.822067][ T3038] pc : read_block_bitmap+0xec/0x224 [ 49.822995][ T3038] lr : read_block_bitmap+0xe8/0x224 [ 49.823877][ T3038] sp : ffff80001282ba50 [ 49.824570][ T3038] x29: ffff80001282ba50 x28: ffff0000c5ee8800 x27: 0000000000000000 [ 49.825990][ T3038] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 49.827368][ T3038] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 49.828821][ T3038] x20: 0000000000000000 x19: ffff0000c9ddc000 x18: ffff80000a3f7ee1 [ 49.830287][ T3038] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.831627][ T3038] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.833027][ T3038] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 71638a5452574b00 [ 49.834374][ T3038] x8 : 71638a5452574b00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.835710][ T3038] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.837094][ T3038] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.838450][ T3038] Call trace: [ 49.838996][ T3038] read_block_bitmap+0xec/0x224 [ 49.839808][ T3038] ext2_free_blocks+0x104/0x368 [ 49.840673][ T3038] __ext2_truncate_blocks+0xb8/0x550 [ 49.841591][ T3038] ext2_write_failed+0xa4/0xc0 [ 49.842412][ T3038] ext2_write_begin+0x54/0x6c [ 49.843228][ T3038] generic_perform_write+0x80/0x1e4 [ 49.844130][ T3038] __generic_file_write_iter+0x7c/0xc0 [ 49.845081][ T3038] generic_file_write_iter+0x50/0xd4 [ 49.846042][ T3038] ext2_file_write_iter+0x10/0x1c [ 49.846953][ T3038] vfs_write+0x1ac/0x2c4 [ 49.847736][ T3038] __arm64_sys_pwrite64+0x84/0xc8 [ 49.848659][ T3038] invoke_syscall+0x40/0xdc [ 49.849450][ T3038] el0_svc_common+0xb0/0xe8 [ 49.850309][ T3038] do_el0_svc+0x24/0x80 [ 49.851037][ T3038] el0_svc+0x34/0xd4 [ 49.851719][ T3038] el0t_64_sync_handler+0x84/0xf0 [ 49.852603][ T3038] el0t_64_sync+0x18c/0x190 [ 49.853384][ T3038] ---[ end trace 0000000000000000 ]--- [ 49.854380][ T3038] ------------[ cut here ]------------ [ 49.855168][ T3038] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.855182][ T3038] WARNING: CPU: 0 PID: 3038 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.858052][ T3038] Modules linked in: [ 49.858714][ T3038] CPU: 0 PID: 3038 Comm: syz.2.34 Tainted: G W syzkaller #0 [ 49.860233][ T3038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.862001][ T3038] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.863361][ T3038] pc : read_block_bitmap+0xec/0x224 [ 49.864269][ T3038] lr : read_block_bitmap+0xe8/0x224 [ 49.865187][ T3038] sp : ffff80001282ba50 [ 49.865896][ T3038] x29: ffff80001282ba50 x28: ffff0000c5ee8800 x27: 0000000000000000 [ 49.867294][ T3038] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 49.868734][ T3038] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 49.870146][ T3038] x20: 0000000000000000 x19: ffff0000c9ddc000 x18: ffff80000a3f7ee1 [ 49.871544][ T3038] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 49.872969][ T3038] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 49.874385][ T3038] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 71638a5452574b00 [ 49.875809][ T3038] x8 : 71638a5452574b00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 49.877235][ T3038] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.878613][ T3038] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 49.879995][ T3038] Call trace: [ 49.880570][ T3038] read_block_bitmap+0xec/0x224 [ 49.881423][ T3038] ext2_free_blocks+0x104/0x368 [ 49.882278][ T3038] __ext2_truncate_blocks+0x154/0x550 [ 49.883193][ T3038] ext2_write_failed+0xa4/0xc0 [ 49.884011][ T3038] ext2_write_begin+0x54/0x6c [ 49.884792][ T3038] generic_perform_write+0x80/0x1e4 [ 49.885676][ T3038] __generic_file_write_iter+0x7c/0xc0 [ 49.886606][ T3038] generic_file_write_iter+0x50/0xd4 [ 49.887499][ T3038] ext2_file_write_iter+0x10/0x1c [ 49.888353][ T3038] vfs_write+0x1ac/0x2c4 [ 49.889072][ T3038] __arm64_sys_pwrite64+0x84/0xc8 [ 49.889935][ T3038] invoke_syscall+0x40/0xdc [ 49.890709][ T3038] el0_svc_common+0xb0/0xe8 [ 49.891480][ T3038] do_el0_svc+0x24/0x80 [ 49.892194][ T3038] el0_svc+0x34/0xd4 [ 49.892909][ T3038] el0t_64_sync_handler+0x84/0xf0 [ 49.893782][ T3038] el0t_64_sync+0x18c/0x190 [ 49.894606][ T3038] ---[ end trace 0000000000000000 ]--- [ 49.898582][ T3040] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 49.899812][ T3040] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 49.901096][ T3040] ext2 filesystem being mounted at /18/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.904938][ T3040] ------------[ cut here ]------------ [ 49.905867][ T3040] block_group >= groups_count - block_group = 7, groups_count = 1 [ 49.905891][ T3040] WARNING: CPU: 0 PID: 3040 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 49.908495][ T3040] Modules linked in: [ 49.909107][ T3040] CPU: 0 PID: 3040 Comm: syz.2.35 Tainted: G W syzkaller #0 [ 49.910496][ T3040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.912074][ T3040] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.913304][ T3040] pc : ext2_new_blocks+0x418/0x564 [ 49.914049][ T3040] lr : ext2_new_blocks+0x418/0x564 [ 49.914851][ T3040] sp : ffff80001285b8f0 [ 49.915497][ T3040] x29: ffff80001285b940 x28: 0000000000010000 x27: 0000000000000008 [ 49.916907][ T3040] x26: ffff0000d4227400 x25: 0000000000010000 x24: ffff80001285b9f4 [ 49.918299][ T3040] x23: ffff0000c9ddb000 x22: 0000000000000000 x21: ffff80001285b9f8 [ 49.919726][ T3040] x20: ffff0000c5f5f880 x19: ffff0000c8e7cd98 x18: ffff80000a3f7ee1 [ 49.921163][ T3040] x17: 0000000000000001 x16: 0000000000000000 x15: 000000000000000d [ 49.922545][ T3040] x14: 00000000000cbe41 x13: 0000000000000001 x12: ffff80000e90c000 [ 49.923926][ T3040] x11: 0000000000000003 x10: 00000000ffffffff x9 : 509e4d2cf67a9800 [ 49.925302][ T3040] x8 : 509e4d2cf67a9800 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 49.926671][ T3040] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.928105][ T3040] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 49.929511][ T3040] Call trace: [ 49.930088][ T3040] ext2_new_blocks+0x418/0x564 [ 49.930953][ T3040] ext2_get_blocks+0x4b4/0x9b0 [ 49.931822][ T3040] ext2_get_block+0x58/0x158 [ 49.932685][ T3040] __block_write_begin_int+0x10c/0x6f0 [ 49.933691][ T3040] block_write_begin+0x5c/0xa4 [ 49.934556][ T3040] ext2_write_begin+0x40/0x6c [ 49.935397][ T3040] generic_perform_write+0x80/0x1e4 [ 49.936305][ T3040] __generic_file_write_iter+0x7c/0xc0 [ 49.937249][ T3040] generic_file_write_iter+0x50/0xd4 [ 49.938221][ T3040] ext2_file_write_iter+0x10/0x1c [ 49.939117][ T3040] vfs_write+0x1ac/0x2c4 [ 49.939866][ T3040] __arm64_sys_pwrite64+0x84/0xc8 [ 49.940741][ T3040] invoke_syscall+0x40/0xdc [ 49.941570][ T3040] el0_svc_common+0xb0/0xe8 [ 49.942394][ T3040] do_el0_svc+0x24/0x80 [ 49.943122][ T3040] el0_svc+0x34/0xd4 [ 49.943819][ T3040] el0t_64_sync_handler+0x84/0xf0 [ 49.944706][ T3040] el0t_64_sync+0x18c/0x190 [ 49.945533][ T3040] ---[ end trace 0000000000000000 ]--- [ 49.946597][ T3040] ------------[ cut here ]------------ [ 49.947459][ T3040] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 49.947508][ T3040] WARNING: CPU: 0 PID: 3040 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.950279][ T3040] Modules linked in: [ 49.950858][ T3040] CPU: 0 PID: 3040 Comm: syz.2.35 Tainted: G W syzkaller #0 [ 49.952148][ T3040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.953704][ T3040] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.955006][ T3040] pc : read_block_bitmap+0xec/0x224 [ 49.955940][ T3040] lr : read_block_bitmap+0xe8/0x224 [ 49.956884][ T3040] sp : ffff80001285ba50 [ 49.957625][ T3040] x29: ffff80001285ba50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 49.959097][ T3040] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 49.960560][ T3040] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 49.961981][ T3040] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: 0000000000000000 [ 49.963392][ T3040] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 49.964812][ T3040] x14: 00000000000d7da2 x13: 0000000002da7955 x12: ffff80000e90c000 [ 49.966239][ T3040] x11: 0000000000000004 x10: 00000000ffffffff x9 : 509e4d2cf67a9800 [ 49.967664][ T3040] x8 : 509e4d2cf67a9800 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 49.969143][ T3040] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 49.970517][ T3040] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 49.971906][ T3040] Call trace: [ 49.972467][ T3040] read_block_bitmap+0xec/0x224 [ 49.973314][ T3040] ext2_free_blocks+0x104/0x368 [ 49.974151][ T3040] __ext2_truncate_blocks+0xb8/0x550 [ 49.975087][ T3040] ext2_write_failed+0xa4/0xc0 [ 49.975910][ T3040] ext2_write_begin+0x54/0x6c [ 49.976709][ T3040] generic_perform_write+0x80/0x1e4 [ 49.977577][ T3040] __generic_file_write_iter+0x7c/0xc0 [ 49.978580][ T3040] generic_file_write_iter+0x50/0xd4 [ 49.979519][ T3040] ext2_file_write_iter+0x10/0x1c [ 49.980411][ T3040] vfs_write+0x1ac/0x2c4 [ 49.981161][ T3040] __arm64_sys_pwrite64+0x84/0xc8 [ 49.982050][ T3040] invoke_syscall+0x40/0xdc [ 49.982855][ T3040] el0_svc_common+0xb0/0xe8 [ 49.983647][ T3040] do_el0_svc+0x24/0x80 [ 49.984377][ T3040] el0_svc+0x34/0xd4 [ 49.985075][ T3040] el0t_64_sync_handler+0x84/0xf0 [ 49.985954][ T3040] el0t_64_sync+0x18c/0x190 [ 49.986740][ T3040] ---[ end trace 0000000000000000 ]--- [ 49.987860][ T3040] ------------[ cut here ]------------ [ 49.988765][ T3040] block_group >= groups_count - block_group = 3, groups_count = 1 [ 49.988791][ T3040] WARNING: CPU: 0 PID: 3040 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 49.991734][ T3040] Modules linked in: [ 49.992426][ T3040] CPU: 0 PID: 3040 Comm: syz.2.35 Tainted: G W syzkaller #0 [ 49.994000][ T3040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.995793][ T3040] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.997200][ T3040] pc : read_block_bitmap+0xec/0x224 [ 49.998135][ T3040] lr : read_block_bitmap+0xe8/0x224 [ 49.999099][ T3040] sp : ffff80001285ba50 [ 49.999828][ T3040] x29: ffff80001285ba50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 50.001303][ T3040] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 50.002754][ T3040] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 50.004196][ T3040] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: 0000000000029000 [ 50.005597][ T3040] x17: 0000000000000001 x16: 0000000000000000 x15: 00000000000002bc [ 50.007018][ T3040] x14: 00000000000e9a30 x13: 0000000002e83dee x12: ffff80000e90c000 [ 50.008443][ T3040] x11: 0000000000000004 x10: 00000000ffffffff x9 : 509e4d2cf67a9800 [ 50.009869][ T3040] x8 : 509e4d2cf67a9800 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 50.011307][ T3040] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.012729][ T3040] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 50.014182][ T3040] Call trace: [ 50.014755][ T3040] read_block_bitmap+0xec/0x224 [ 50.015608][ T3040] ext2_free_blocks+0x104/0x368 [ 50.016466][ T3040] __ext2_truncate_blocks+0xb8/0x550 [ 50.017385][ T3040] ext2_write_failed+0xa4/0xc0 [ 50.018231][ T3040] ext2_write_begin+0x54/0x6c [ 50.019050][ T3040] generic_perform_write+0x80/0x1e4 [ 50.019951][ T3040] __generic_file_write_iter+0x7c/0xc0 [ 50.020928][ T3040] generic_file_write_iter+0x50/0xd4 [ 50.021855][ T3040] ext2_file_write_iter+0x10/0x1c [ 50.022766][ T3040] vfs_write+0x1ac/0x2c4 [ 50.023507][ T3040] __arm64_sys_pwrite64+0x84/0xc8 [ 50.024363][ T3040] invoke_syscall+0x40/0xdc [ 50.025158][ T3040] el0_svc_common+0xb0/0xe8 [ 50.025959][ T3040] do_el0_svc+0x24/0x80 [ 50.026680][ T3040] el0_svc+0x34/0xd4 [ 50.027379][ T3040] el0t_64_sync_handler+0x84/0xf0 [ 50.028257][ T3040] el0t_64_sync+0x18c/0x190 [ 50.029073][ T3040] ---[ end trace 0000000000000000 ]--- [ 50.030084][ T3040] ------------[ cut here ]------------ [ 50.030965][ T3040] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.030976][ T3040] WARNING: CPU: 0 PID: 3040 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.033710][ T3040] Modules linked in: [ 50.034342][ T3040] CPU: 0 PID: 3040 Comm: syz.2.35 Tainted: G W syzkaller #0 [ 50.035885][ T3040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.037747][ T3040] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.039188][ T3040] pc : read_block_bitmap+0xec/0x224 [ 50.040096][ T3040] lr : read_block_bitmap+0xe8/0x224 [ 50.041061][ T3040] sp : ffff80001285ba50 [ 50.041780][ T3040] x29: ffff80001285ba50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 50.043263][ T3040] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 50.044772][ T3040] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 50.046234][ T3040] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: ffff80000a3f7ee1 [ 50.047675][ T3040] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.049132][ T3040] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.050520][ T3040] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 509e4d2cf67a9800 [ 50.051918][ T3040] x8 : 509e4d2cf67a9800 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.053369][ T3040] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.054840][ T3040] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.056286][ T3040] Call trace: [ 50.056869][ T3040] read_block_bitmap+0xec/0x224 [ 50.057750][ T3040] ext2_free_blocks+0x104/0x368 [ 50.058612][ T3040] __ext2_truncate_blocks+0x154/0x550 [ 50.059549][ T3040] ext2_write_failed+0xa4/0xc0 [ 50.060382][ T3040] ext2_write_begin+0x54/0x6c [ 50.061193][ T3040] generic_perform_write+0x80/0x1e4 [ 50.062162][ T3040] __generic_file_write_iter+0x7c/0xc0 [ 50.063113][ T3040] generic_file_write_iter+0x50/0xd4 [ 50.064046][ T3040] ext2_file_write_iter+0x10/0x1c [ 50.064945][ T3040] vfs_write+0x1ac/0x2c4 [ 50.065681][ T3040] __arm64_sys_pwrite64+0x84/0xc8 [ 50.066574][ T3040] invoke_syscall+0x40/0xdc [ 50.067368][ T3040] el0_svc_common+0xb0/0xe8 [ 50.068172][ T3040] do_el0_svc+0x24/0x80 [ 50.068930][ T3040] el0_svc+0x34/0xd4 [ 50.069609][ T3040] el0t_64_sync_handler+0x84/0xf0 [ 50.070511][ T3040] el0t_64_sync+0x18c/0x190 [ 50.071309][ T3040] ---[ end trace 0000000000000000 ]--- [ 50.083294][ T3042] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 50.085095][ T3042] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 50.089135][ T3042] ext2 filesystem being mounted at /19/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.095654][ T3042] ------------[ cut here ]------------ [ 50.096477][ T3042] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.096523][ T3042] WARNING: CPU: 0 PID: 3042 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 50.099200][ T3042] Modules linked in: [ 50.099804][ T3042] CPU: 0 PID: 3042 Comm: syz.2.36 Tainted: G W syzkaller #0 [ 50.101190][ T3042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.102838][ T3042] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.104240][ T3042] pc : ext2_new_blocks+0x418/0x564 [ 50.105141][ T3042] lr : ext2_new_blocks+0x418/0x564 [ 50.106068][ T3042] sp : ffff8000121f38f0 [ 50.106784][ T3042] x29: ffff8000121f3940 x28: 0000000000010000 x27: 0000000000000008 [ 50.108260][ T3042] x26: ffff0000d42dc400 x25: 0000000000010000 x24: ffff8000121f39f4 [ 50.109719][ T3042] x23: ffff0000c5f0f000 x22: 0000000000000000 x21: ffff8000121f39f8 [ 50.111153][ T3042] x20: ffff0000c5555980 x19: ffff0000c8e7e518 x18: 000000000003e000 [ 50.112572][ T3042] x17: 0000000000000001 x16: 0000000000000000 x15: 00000000000000da [ 50.114027][ T3042] x14: 00000000000ffc19 x13: 0000000003a8a375 x12: ffff80000e90c000 [ 50.115471][ T3042] x11: 0000000000000003 x10: 00000000ffffffff x9 : 614458c1508afe00 [ 50.116928][ T3042] x8 : 614458c1508afe00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 50.118368][ T3042] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.119806][ T3042] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 50.121234][ T3042] Call trace: [ 50.121814][ T3042] ext2_new_blocks+0x418/0x564 [ 50.122669][ T3042] ext2_get_blocks+0x4b4/0x9b0 [ 50.123523][ T3042] ext2_get_block+0x58/0x158 [ 50.124341][ T3042] __block_write_begin_int+0x10c/0x6f0 [ 50.125381][ T3042] block_write_begin+0x5c/0xa4 [ 50.126224][ T3042] ext2_write_begin+0x40/0x6c [ 50.127089][ T3042] generic_perform_write+0x80/0x1e4 [ 50.128008][ T3042] __generic_file_write_iter+0x7c/0xc0 [ 50.129001][ T3042] generic_file_write_iter+0x50/0xd4 [ 50.129978][ T3042] ext2_file_write_iter+0x10/0x1c [ 50.130863][ T3042] vfs_write+0x1ac/0x2c4 [ 50.131628][ T3042] __arm64_sys_pwrite64+0x84/0xc8 [ 50.132551][ T3042] invoke_syscall+0x40/0xdc [ 50.133359][ T3042] el0_svc_common+0xb0/0xe8 [ 50.134177][ T3042] do_el0_svc+0x24/0x80 [ 50.134941][ T3042] el0_svc+0x34/0xd4 [ 50.135630][ T3042] el0t_64_sync_handler+0x84/0xf0 [ 50.136522][ T3042] el0t_64_sync+0x18c/0x190 [ 50.137331][ T3042] ---[ end trace 0000000000000000 ]--- [ 50.138398][ T3042] ------------[ cut here ]------------ [ 50.139283][ T3042] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 50.139342][ T3042] WARNING: CPU: 0 PID: 3042 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.142608][ T3042] Modules linked in: [ 50.143296][ T3042] CPU: 0 PID: 3042 Comm: syz.2.36 Tainted: G W syzkaller #0 [ 50.144840][ T3042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.146680][ T3042] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.148084][ T3042] pc : read_block_bitmap+0xec/0x224 [ 50.149016][ T3042] lr : read_block_bitmap+0xe8/0x224 [ 50.149941][ T3042] sp : ffff8000121f3a50 [ 50.150666][ T3042] x29: ffff8000121f3a50 x28: ffff0000c4153400 x27: 0000000000000000 [ 50.152089][ T3042] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 50.153486][ T3042] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 50.154898][ T3042] x20: 0000000000000000 x19: ffff0000c5f0f000 x18: 0000000000000000 [ 50.156298][ T3042] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 50.157716][ T3042] x14: 00000000000cc85c x13: 0000000002c20a76 x12: ffff80000e90c000 [ 50.159164][ T3042] x11: 0000000000000004 x10: 00000000ffffffff x9 : 614458c1508afe00 [ 50.160602][ T3042] x8 : 614458c1508afe00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 50.162041][ T3042] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.163490][ T3042] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 50.164944][ T3042] Call trace: [ 50.165535][ T3042] read_block_bitmap+0xec/0x224 [ 50.166392][ T3042] ext2_free_blocks+0x104/0x368 [ 50.167240][ T3042] __ext2_truncate_blocks+0xb8/0x550 [ 50.168195][ T3042] ext2_write_failed+0xa4/0xc0 [ 50.169035][ T3042] ext2_write_begin+0x54/0x6c [ 50.169853][ T3042] generic_perform_write+0x80/0x1e4 [ 50.170771][ T3042] __generic_file_write_iter+0x7c/0xc0 [ 50.171716][ T3042] generic_file_write_iter+0x50/0xd4 [ 50.172661][ T3042] ext2_file_write_iter+0x10/0x1c [ 50.173551][ T3042] vfs_write+0x1ac/0x2c4 [ 50.174307][ T3042] __arm64_sys_pwrite64+0x84/0xc8 [ 50.175198][ T3042] invoke_syscall+0x40/0xdc [ 50.175977][ T3042] el0_svc_common+0xb0/0xe8 [ 50.176763][ T3042] do_el0_svc+0x24/0x80 [ 50.177490][ T3042] el0_svc+0x34/0xd4 [ 50.178176][ T3042] el0t_64_sync_handler+0x84/0xf0 [ 50.179060][ T3042] el0t_64_sync+0x18c/0x190 [ 50.179845][ T3042] ---[ end trace 0000000000000000 ]--- [ 50.180940][ T3042] ------------[ cut here ]------------ [ 50.181791][ T3042] block_group >= groups_count - block_group = 3, groups_count = 1 [ 50.181803][ T3042] WARNING: CPU: 0 PID: 3042 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.184850][ T3042] Modules linked in: [ 50.185523][ T3042] CPU: 0 PID: 3042 Comm: syz.2.36 Tainted: G W syzkaller #0 [ 50.187080][ T3042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.188911][ T3042] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.190370][ T3042] pc : read_block_bitmap+0xec/0x224 [ 50.191316][ T3042] lr : read_block_bitmap+0xe8/0x224 [ 50.192252][ T3042] sp : ffff8000121f3a50 [ 50.192977][ T3042] x29: ffff8000121f3a50 x28: ffff0000c4153400 x27: 0000000000000000 [ 50.194389][ T3042] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 50.195802][ T3042] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 50.197239][ T3042] x20: 0000000000000000 x19: ffff0000c5f0f000 x18: ffff80000a3f7ee1 [ 50.198652][ T3042] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.200095][ T3042] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.201513][ T3042] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 614458c1508afe00 [ 50.202941][ T3042] x8 : 614458c1508afe00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.204395][ T3042] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.205811][ T3042] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.207250][ T3042] Call trace: [ 50.207841][ T3042] read_block_bitmap+0xec/0x224 [ 50.208719][ T3042] ext2_free_blocks+0x104/0x368 [ 50.209589][ T3042] __ext2_truncate_blocks+0xb8/0x550 [ 50.210530][ T3042] ext2_write_failed+0xa4/0xc0 [ 50.211349][ T3042] ext2_write_begin+0x54/0x6c [ 50.212165][ T3042] generic_perform_write+0x80/0x1e4 [ 50.213089][ T3042] __generic_file_write_iter+0x7c/0xc0 [ 50.214040][ T3042] generic_file_write_iter+0x50/0xd4 [ 50.215013][ T3042] ext2_file_write_iter+0x10/0x1c [ 50.215874][ T3042] vfs_write+0x1ac/0x2c4 [ 50.216624][ T3042] __arm64_sys_pwrite64+0x84/0xc8 [ 50.217492][ T3042] invoke_syscall+0x40/0xdc [ 50.218291][ T3042] el0_svc_common+0xb0/0xe8 [ 50.219091][ T3042] do_el0_svc+0x24/0x80 [ 50.219814][ T3042] el0_svc+0x34/0xd4 [ 50.220505][ T3042] el0t_64_sync_handler+0x84/0xf0 [ 50.221383][ T3042] el0t_64_sync+0x18c/0x190 [ 50.222168][ T3042] ---[ end trace 0000000000000000 ]--- [ 50.223169][ T3042] ------------[ cut here ]------------ [ 50.224015][ T3042] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.224029][ T3042] WARNING: CPU: 0 PID: 3042 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.227074][ T3042] Modules linked in: [ 50.227760][ T3042] CPU: 0 PID: 3042 Comm: syz.2.36 Tainted: G W syzkaller #0 [ 50.229327][ T3042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.231151][ T3042] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.232542][ T3042] pc : read_block_bitmap+0xec/0x224 [ 50.233469][ T3042] lr : read_block_bitmap+0xe8/0x224 [ 50.234383][ T3042] sp : ffff8000121f3a50 [ 50.235105][ T3042] x29: ffff8000121f3a50 x28: ffff0000c4153400 x27: 0000000000000000 [ 50.236525][ T3042] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 50.237905][ T3042] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 50.239314][ T3042] x20: 0000000000000000 x19: ffff0000c5f0f000 x18: ffff80000a3f7ee1 [ 50.240741][ T3042] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.242154][ T3042] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.243547][ T3042] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 614458c1508afe00 [ 50.244936][ T3042] x8 : 614458c1508afe00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.246348][ T3042] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.247771][ T3042] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.249169][ T3042] Call trace: [ 50.249761][ T3042] read_block_bitmap+0xec/0x224 [ 50.250631][ T3042] ext2_free_blocks+0x104/0x368 [ 50.251502][ T3042] __ext2_truncate_blocks+0x154/0x550 [ 50.252503][ T3042] ext2_write_failed+0xa4/0xc0 [ 50.253363][ T3042] ext2_write_begin+0x54/0x6c [ 50.254185][ T3042] generic_perform_write+0x80/0x1e4 [ 50.255111][ T3042] __generic_file_write_iter+0x7c/0xc0 [ 50.256090][ T3042] generic_file_write_iter+0x50/0xd4 [ 50.257055][ T3042] ext2_file_write_iter+0x10/0x1c [ 50.257979][ T3042] vfs_write+0x1ac/0x2c4 [ 50.258762][ T3042] __arm64_sys_pwrite64+0x84/0xc8 [ 50.259679][ T3042] invoke_syscall+0x40/0xdc [ 50.260495][ T3042] el0_svc_common+0xb0/0xe8 [ 50.261284][ T3042] do_el0_svc+0x24/0x80 [ 50.262035][ T3042] el0_svc+0x34/0xd4 [ 50.262714][ T3042] el0t_64_sync_handler+0x84/0xf0 [ 50.263612][ T3042] el0t_64_sync+0x18c/0x190 [ 50.264409][ T3042] ---[ end trace 0000000000000000 ]--- [ 50.271188][ T3044] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 50.272417][ T3044] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 50.273693][ T3044] ext2 filesystem being mounted at /20/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.277657][ T3044] ------------[ cut here ]------------ [ 50.278660][ T3044] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.278718][ T3044] WARNING: CPU: 1 PID: 3044 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 50.281711][ T3044] Modules linked in: [ 50.282404][ T3044] CPU: 1 PID: 3044 Comm: syz.2.37 Tainted: G W syzkaller #0 [ 50.283931][ T3044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.285737][ T3044] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.287070][ T3044] pc : ext2_new_blocks+0x418/0x564 [ 50.287953][ T3044] lr : ext2_new_blocks+0x418/0x564 [ 50.288844][ T3044] sp : ffff8000128638f0 [ 50.289569][ T3044] x29: ffff800012863940 x28: 0000000000010000 x27: 0000000000000008 [ 50.290941][ T3044] x26: ffff0000d42a0400 x25: 0000000000010000 x24: ffff8000128639f4 [ 50.292322][ T3044] x23: ffff0000c5ec2000 x22: 0000000000000000 x21: ffff8000128639f8 [ 50.293708][ T3044] x20: ffff0000c58b7d00 x19: ffff0000c8ef3618 x18: 0000000000000000 [ 50.295088][ T3044] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 50.296508][ T3044] x14: 00000000000ffe0a x13: 0000000002c51647 x12: ffff80000e90c000 [ 50.297886][ T3044] x11: 0000000000000003 x10: 00000000ffffffff x9 : ea061744de942c00 [ 50.299372][ T3044] x8 : ea061744de942c00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 50.300773][ T3044] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.302174][ T3044] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 50.303588][ T3044] Call trace: [ 50.304167][ T3044] ext2_new_blocks+0x418/0x564 [ 50.305004][ T3044] ext2_get_blocks+0x4b4/0x9b0 [ 50.305850][ T3044] ext2_get_block+0x58/0x158 [ 50.306666][ T3044] __block_write_begin_int+0x10c/0x6f0 [ 50.307650][ T3044] block_write_begin+0x5c/0xa4 [ 50.308514][ T3044] ext2_write_begin+0x40/0x6c [ 50.309331][ T3044] generic_perform_write+0x80/0x1e4 [ 50.310251][ T3044] __generic_file_write_iter+0x7c/0xc0 [ 50.311216][ T3044] generic_file_write_iter+0x50/0xd4 [ 50.312121][ T3044] ext2_file_write_iter+0x10/0x1c [ 50.313012][ T3044] vfs_write+0x1ac/0x2c4 [ 50.313744][ T3044] __arm64_sys_pwrite64+0x84/0xc8 [ 50.314615][ T3044] invoke_syscall+0x40/0xdc [ 50.315395][ T3044] el0_svc_common+0xb0/0xe8 [ 50.316168][ T3044] do_el0_svc+0x24/0x80 [ 50.316910][ T3044] el0_svc+0x34/0xd4 [ 50.317614][ T3044] el0t_64_sync_handler+0x84/0xf0 [ 50.318514][ T3044] el0t_64_sync+0x18c/0x190 [ 50.319313][ T3044] ---[ end trace 0000000000000000 ]--- [ 50.320359][ T3044] ------------[ cut here ]------------ [ 50.321356][ T3044] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 50.321369][ T3044] WARNING: CPU: 1 PID: 3044 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.324113][ T3044] Modules linked in: [ 50.324731][ T3044] CPU: 1 PID: 3044 Comm: syz.2.37 Tainted: G W syzkaller #0 [ 50.326210][ T3044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.328029][ T3044] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.329417][ T3044] pc : read_block_bitmap+0xec/0x224 [ 50.330332][ T3044] lr : read_block_bitmap+0xe8/0x224 [ 50.331225][ T3044] sp : ffff800012863a50 [ 50.331953][ T3044] x29: ffff800012863a50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 50.333360][ T3044] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 50.334788][ T3044] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 50.336204][ T3044] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: ffff80000a3f7ee1 [ 50.337612][ T3044] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.339030][ T3044] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.340458][ T3044] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : ea061744de942c00 [ 50.341907][ T3044] x8 : ea061744de942c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.343368][ T3044] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.344793][ T3044] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.346233][ T3044] Call trace: [ 50.346810][ T3044] read_block_bitmap+0xec/0x224 [ 50.347657][ T3044] ext2_free_blocks+0x104/0x368 [ 50.348505][ T3044] __ext2_truncate_blocks+0xb8/0x550 [ 50.349419][ T3044] ext2_write_failed+0xa4/0xc0 [ 50.350263][ T3044] ext2_write_begin+0x54/0x6c [ 50.351086][ T3044] generic_perform_write+0x80/0x1e4 [ 50.352006][ T3044] __generic_file_write_iter+0x7c/0xc0 [ 50.352959][ T3044] generic_file_write_iter+0x50/0xd4 [ 50.353909][ T3044] ext2_file_write_iter+0x10/0x1c [ 50.354812][ T3044] vfs_write+0x1ac/0x2c4 [ 50.355565][ T3044] __arm64_sys_pwrite64+0x84/0xc8 [ 50.356447][ T3044] invoke_syscall+0x40/0xdc [ 50.357247][ T3044] el0_svc_common+0xb0/0xe8 [ 50.358065][ T3044] do_el0_svc+0x24/0x80 [ 50.358792][ T3044] el0_svc+0x34/0xd4 [ 50.359461][ T3044] el0t_64_sync_handler+0x84/0xf0 [ 50.360339][ T3044] el0t_64_sync+0x18c/0x190 [ 50.361140][ T3044] ---[ end trace 0000000000000000 ]--- [ 50.362257][ T3044] ------------[ cut here ]------------ [ 50.363166][ T3044] block_group >= groups_count - block_group = 3, groups_count = 1 [ 50.363178][ T3044] WARNING: CPU: 1 PID: 3044 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.366176][ T3044] Modules linked in: [ 50.366856][ T3044] CPU: 1 PID: 3044 Comm: syz.2.37 Tainted: G W syzkaller #0 [ 50.368399][ T3044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.370213][ T3044] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.371666][ T3044] pc : read_block_bitmap+0xec/0x224 [ 50.372598][ T3044] lr : read_block_bitmap+0xe8/0x224 [ 50.373521][ T3044] sp : ffff800012863a50 [ 50.374264][ T3044] x29: ffff800012863a50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 50.375679][ T3044] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 50.377128][ T3044] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 50.378606][ T3044] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: ffff80000a3f7ee1 [ 50.380086][ T3044] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.381493][ T3044] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.382892][ T3044] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : ea061744de942c00 [ 50.384290][ T3044] x8 : ea061744de942c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.385699][ T3044] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.387095][ T3044] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.388530][ T3044] Call trace: [ 50.389114][ T3044] read_block_bitmap+0xec/0x224 [ 50.389993][ T3044] ext2_free_blocks+0x104/0x368 [ 50.390903][ T3044] __ext2_truncate_blocks+0xb8/0x550 [ 50.391851][ T3044] ext2_write_failed+0xa4/0xc0 [ 50.392694][ T3044] ext2_write_begin+0x54/0x6c [ 50.393500][ T3044] generic_perform_write+0x80/0x1e4 [ 50.394432][ T3044] __generic_file_write_iter+0x7c/0xc0 [ 50.395406][ T3044] generic_file_write_iter+0x50/0xd4 [ 50.396327][ T3044] ext2_file_write_iter+0x10/0x1c [ 50.397228][ T3044] vfs_write+0x1ac/0x2c4 [ 50.397955][ T3044] __arm64_sys_pwrite64+0x84/0xc8 [ 50.398839][ T3044] invoke_syscall+0x40/0xdc [ 50.399659][ T3044] el0_svc_common+0xb0/0xe8 [ 50.400429][ T3044] do_el0_svc+0x24/0x80 [ 50.401175][ T3044] el0_svc+0x34/0xd4 [ 50.401850][ T3044] el0t_64_sync_handler+0x84/0xf0 [ 50.402726][ T3044] el0t_64_sync+0x18c/0x190 [ 50.403503][ T3044] ---[ end trace 0000000000000000 ]--- [ 50.404482][ T3044] ------------[ cut here ]------------ [ 50.405342][ T3044] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.405356][ T3044] WARNING: CPU: 1 PID: 3044 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.408394][ T3044] Modules linked in: [ 50.409080][ T3044] CPU: 1 PID: 3044 Comm: syz.2.37 Tainted: G W syzkaller #0 [ 50.410644][ T3044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.412444][ T3044] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.413814][ T3044] pc : read_block_bitmap+0xec/0x224 [ 50.414723][ T3044] lr : read_block_bitmap+0xe8/0x224 [ 50.415624][ T3044] sp : ffff800012863a50 [ 50.416387][ T3044] x29: ffff800012863a50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 50.417843][ T3044] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 50.419259][ T3044] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 50.420656][ T3044] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: ffff80000a3f7ee1 [ 50.422060][ T3044] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.423444][ T3044] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.424838][ T3044] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : ea061744de942c00 [ 50.426248][ T3044] x8 : ea061744de942c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.427658][ T3044] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.429071][ T3044] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.430505][ T3044] Call trace: [ 50.431055][ T3044] read_block_bitmap+0xec/0x224 [ 50.431888][ T3044] ext2_free_blocks+0x104/0x368 [ 50.432727][ T3044] __ext2_truncate_blocks+0x154/0x550 [ 50.433658][ T3044] ext2_write_failed+0xa4/0xc0 [ 50.434493][ T3044] ext2_write_begin+0x54/0x6c [ 50.435314][ T3044] generic_perform_write+0x80/0x1e4 [ 50.436233][ T3044] __generic_file_write_iter+0x7c/0xc0 [ 50.437198][ T3044] generic_file_write_iter+0x50/0xd4 [ 50.438130][ T3044] ext2_file_write_iter+0x10/0x1c [ 50.439048][ T3044] vfs_write+0x1ac/0x2c4 [ 50.439781][ T3044] __arm64_sys_pwrite64+0x84/0xc8 [ 50.440646][ T3044] invoke_syscall+0x40/0xdc [ 50.441438][ T3044] el0_svc_common+0xb0/0xe8 [ 50.442226][ T3044] do_el0_svc+0x24/0x80 [ 50.442960][ T3044] el0_svc+0x34/0xd4 [ 50.443657][ T3044] el0t_64_sync_handler+0x84/0xf0 [ 50.444561][ T3044] el0t_64_sync+0x18c/0x190 [ 50.445383][ T3044] ---[ end trace 0000000000000000 ]--- [ 50.449668][ T3046] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 50.450905][ T3046] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 50.452198][ T3046] ext2 filesystem being mounted at /21/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.462928][ T3046] ------------[ cut here ]------------ [ 50.463803][ T3046] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.463818][ T3046] WARNING: CPU: 1 PID: 3046 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 50.466560][ T3046] Modules linked in: [ 50.467257][ T3046] CPU: 1 PID: 3046 Comm: syz.2.38 Tainted: G W syzkaller #0 [ 50.468773][ T3046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.470553][ T3046] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.471886][ T3046] pc : ext2_new_blocks+0x418/0x564 [ 50.472744][ T3046] lr : ext2_new_blocks+0x418/0x564 [ 50.473652][ T3046] sp : ffff80001284b8f0 [ 50.474342][ T3046] x29: ffff80001284b940 x28: 0000000000010000 x27: 0000000000000008 [ 50.475723][ T3046] x26: ffff0000d4277400 x25: 0000000000010000 x24: ffff80001284b9f4 [ 50.477143][ T3046] x23: ffff0000c9ddd000 x22: 0000000000000000 x21: ffff80001284b9f8 [ 50.478558][ T3046] x20: ffff0000c53efa00 x19: ffff0000c8ef1e98 x18: ffff80000a3f7ee1 [ 50.480022][ T3046] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.481411][ T3046] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.482825][ T3046] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : abfa47de29b45c00 [ 50.484232][ T3046] x8 : abfa47de29b45c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.485698][ T3046] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.487117][ T3046] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 50.488533][ T3046] Call trace: [ 50.489109][ T3046] ext2_new_blocks+0x418/0x564 [ 50.489919][ T3046] ext2_get_blocks+0x4b4/0x9b0 [ 50.490731][ T3046] ext2_get_block+0x58/0x158 [ 50.491553][ T3046] __block_write_begin_int+0x10c/0x6f0 [ 50.492480][ T3046] block_write_begin+0x5c/0xa4 [ 50.493290][ T3046] ext2_write_begin+0x40/0x6c [ 50.494086][ T3046] generic_perform_write+0x80/0x1e4 [ 50.494923][ T3046] __generic_file_write_iter+0x7c/0xc0 [ 50.495849][ T3046] generic_file_write_iter+0x50/0xd4 [ 50.496759][ T3046] ext2_file_write_iter+0x10/0x1c [ 50.497631][ T3046] vfs_write+0x1ac/0x2c4 [ 50.498352][ T3046] __arm64_sys_pwrite64+0x84/0xc8 [ 50.499273][ T3046] invoke_syscall+0x40/0xdc [ 50.500055][ T3046] el0_svc_common+0xb0/0xe8 [ 50.500836][ T3046] do_el0_svc+0x24/0x80 [ 50.501548][ T3046] el0_svc+0x34/0xd4 [ 50.502191][ T3046] el0t_64_sync_handler+0x84/0xf0 [ 50.503045][ T3046] el0t_64_sync+0x18c/0x190 [ 50.503850][ T3046] ---[ end trace 0000000000000000 ]--- [ 50.505012][ T3046] ------------[ cut here ]------------ [ 50.505948][ T3046] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 50.505960][ T3046] WARNING: CPU: 1 PID: 3046 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.508615][ T3046] Modules linked in: [ 50.509219][ T3046] CPU: 1 PID: 3046 Comm: syz.2.38 Tainted: G W syzkaller #0 [ 50.510586][ T3046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.512138][ T3046] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.513367][ T3046] pc : read_block_bitmap+0xec/0x224 [ 50.514275][ T3046] lr : read_block_bitmap+0xe8/0x224 [ 50.515198][ T3046] sp : ffff80001284ba50 [ 50.515899][ T3046] x29: ffff80001284ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 50.517237][ T3046] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 50.518637][ T3046] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 50.519994][ T3046] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 50.521413][ T3046] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.522790][ T3046] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.524143][ T3046] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : abfa47de29b45c00 [ 50.525534][ T3046] x8 : abfa47de29b45c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.526930][ T3046] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.528312][ T3046] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.529735][ T3046] Call trace: [ 50.530298][ T3046] read_block_bitmap+0xec/0x224 [ 50.531163][ T3046] ext2_free_blocks+0x104/0x368 [ 50.531966][ T3046] __ext2_truncate_blocks+0xb8/0x550 [ 50.532855][ T3046] ext2_write_failed+0xa4/0xc0 [ 50.533714][ T3046] ext2_write_begin+0x54/0x6c [ 50.534503][ T3046] generic_perform_write+0x80/0x1e4 [ 50.535387][ T3046] __generic_file_write_iter+0x7c/0xc0 [ 50.536312][ T3046] generic_file_write_iter+0x50/0xd4 [ 50.537227][ T3046] ext2_file_write_iter+0x10/0x1c [ 50.538109][ T3046] vfs_write+0x1ac/0x2c4 [ 50.538861][ T3046] __arm64_sys_pwrite64+0x84/0xc8 [ 50.539734][ T3046] invoke_syscall+0x40/0xdc [ 50.540529][ T3046] el0_svc_common+0xb0/0xe8 [ 50.541298][ T3046] do_el0_svc+0x24/0x80 [ 50.541960][ T3046] el0_svc+0x34/0xd4 [ 50.542592][ T3046] el0t_64_sync_handler+0x84/0xf0 [ 50.543444][ T3046] el0t_64_sync+0x18c/0x190 [ 50.544209][ T3046] ---[ end trace 0000000000000000 ]--- [ 50.545444][ T3046] ------------[ cut here ]------------ [ 50.546340][ T3046] block_group >= groups_count - block_group = 3, groups_count = 1 [ 50.546351][ T3046] WARNING: CPU: 1 PID: 3046 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.548997][ T3046] Modules linked in: [ 50.549607][ T3046] CPU: 1 PID: 3046 Comm: syz.2.38 Tainted: G W syzkaller #0 [ 50.550986][ T3046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.552570][ T3046] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.553807][ T3046] pc : read_block_bitmap+0xec/0x224 [ 50.554630][ T3046] lr : read_block_bitmap+0xe8/0x224 [ 50.555471][ T3046] sp : ffff80001284ba50 [ 50.556147][ T3046] x29: ffff80001284ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 50.557539][ T3046] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 50.558981][ T3046] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 50.560395][ T3046] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 50.561801][ T3046] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.563188][ T3046] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.564545][ T3046] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : abfa47de29b45c00 [ 50.565907][ T3046] x8 : abfa47de29b45c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.567297][ T3046] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.568757][ T3046] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.570196][ T3046] Call trace: [ 50.570765][ T3046] read_block_bitmap+0xec/0x224 [ 50.571619][ T3046] ext2_free_blocks+0x104/0x368 [ 50.572481][ T3046] __ext2_truncate_blocks+0xb8/0x550 [ 50.573449][ T3046] ext2_write_failed+0xa4/0xc0 [ 50.574309][ T3046] ext2_write_begin+0x54/0x6c [ 50.575147][ T3046] generic_perform_write+0x80/0x1e4 [ 50.576098][ T3046] __generic_file_write_iter+0x7c/0xc0 [ 50.577088][ T3046] generic_file_write_iter+0x50/0xd4 [ 50.578048][ T3046] ext2_file_write_iter+0x10/0x1c [ 50.578934][ T3046] vfs_write+0x1ac/0x2c4 [ 50.579660][ T3046] __arm64_sys_pwrite64+0x84/0xc8 [ 50.580537][ T3046] invoke_syscall+0x40/0xdc [ 50.581315][ T3046] el0_svc_common+0xb0/0xe8 [ 50.582163][ T3046] do_el0_svc+0x24/0x80 [ 50.582891][ T3046] el0_svc+0x34/0xd4 [ 50.583588][ T3046] el0t_64_sync_handler+0x84/0xf0 [ 50.584504][ T3046] el0t_64_sync+0x18c/0x190 [ 50.585254][ T3046] ---[ end trace 0000000000000000 ]--- [ 50.586192][ T3046] ------------[ cut here ]------------ [ 50.587025][ T3046] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.587039][ T3046] WARNING: CPU: 1 PID: 3046 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.589627][ T3046] Modules linked in: [ 50.590218][ T3046] CPU: 1 PID: 3046 Comm: syz.2.38 Tainted: G W syzkaller #0 [ 50.591556][ T3046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.593099][ T3046] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.594277][ T3046] pc : read_block_bitmap+0xec/0x224 [ 50.595051][ T3046] lr : read_block_bitmap+0xe8/0x224 [ 50.595853][ T3046] sp : ffff80001284ba50 [ 50.596575][ T3046] x29: ffff80001284ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 50.597979][ T3046] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 50.599439][ T3046] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 50.600835][ T3046] x20: 0000000000000000 x19: ffff0000c9ddd000 x18: ffff80000a3f7ee1 [ 50.602198][ T3046] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.603585][ T3046] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.604959][ T3046] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : abfa47de29b45c00 [ 50.606285][ T3046] x8 : abfa47de29b45c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.607662][ T3046] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.609028][ T3046] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.610441][ T3046] Call trace: [ 50.610988][ T3046] read_block_bitmap+0xec/0x224 [ 50.611850][ T3046] ext2_free_blocks+0x104/0x368 [ 50.612690][ T3046] __ext2_truncate_blocks+0x154/0x550 [ 50.613636][ T3046] ext2_write_failed+0xa4/0xc0 [ 50.614495][ T3046] ext2_write_begin+0x54/0x6c [ 50.615303][ T3046] generic_perform_write+0x80/0x1e4 [ 50.616207][ T3046] __generic_file_write_iter+0x7c/0xc0 [ 50.617134][ T3046] generic_file_write_iter+0x50/0xd4 [ 50.618057][ T3046] ext2_file_write_iter+0x10/0x1c [ 50.618908][ T3046] vfs_write+0x1ac/0x2c4 [ 50.619624][ T3046] __arm64_sys_pwrite64+0x84/0xc8 [ 50.620489][ T3046] invoke_syscall+0x40/0xdc [ 50.621318][ T3046] el0_svc_common+0xb0/0xe8 [ 50.622097][ T3046] do_el0_svc+0x24/0x80 [ 50.622808][ T3046] el0_svc+0x34/0xd4 [ 50.623477][ T3046] el0t_64_sync_handler+0x84/0xf0 [ 50.624362][ T3046] el0t_64_sync+0x18c/0x190 [ 50.625140][ T3046] ---[ end trace 0000000000000000 ]--- [ 50.630454][ T3048] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 50.631657][ T3048] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 50.632966][ T3048] ext2 filesystem being mounted at /22/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.636893][ T3048] ------------[ cut here ]------------ [ 50.637805][ T3048] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.637817][ T3048] WARNING: CPU: 1 PID: 3048 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 50.640665][ T3048] Modules linked in: [ 50.641343][ T3048] CPU: 1 PID: 3048 Comm: syz.2.39 Tainted: G W syzkaller #0 [ 50.642900][ T3048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.644726][ T3048] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.646072][ T3048] pc : ext2_new_blocks+0x418/0x564 [ 50.646981][ T3048] lr : ext2_new_blocks+0x418/0x564 [ 50.647848][ T3048] sp : ffff80001284b8f0 [ 50.648565][ T3048] x29: ffff80001284b940 x28: 0000000000010000 x27: 0000000000000008 [ 50.649971][ T3048] x26: ffff0000d4251400 x25: 0000000000010000 x24: ffff80001284b9f4 [ 50.651386][ T3048] x23: ffff0000c5ec5000 x22: 0000000000000000 x21: ffff80001284b9f8 [ 50.652784][ T3048] x20: ffff0000c9d37e00 x19: ffff0000c8ef41d8 x18: ffff80000a3f7ee1 [ 50.654198][ T3048] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.655618][ T3048] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.657016][ T3048] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 1d028689b5738200 [ 50.658472][ T3048] x8 : 1d028689b5738200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.659837][ T3048] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.661271][ T3048] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 50.662689][ T3048] Call trace: [ 50.663243][ T3048] ext2_new_blocks+0x418/0x564 [ 50.664067][ T3048] ext2_get_blocks+0x4b4/0x9b0 [ 50.664893][ T3048] ext2_get_block+0x58/0x158 [ 50.665701][ T3048] __block_write_begin_int+0x10c/0x6f0 [ 50.666670][ T3048] block_write_begin+0x5c/0xa4 [ 50.667506][ T3048] ext2_write_begin+0x40/0x6c [ 50.668325][ T3048] generic_perform_write+0x80/0x1e4 [ 50.669228][ T3048] __generic_file_write_iter+0x7c/0xc0 [ 50.670182][ T3048] generic_file_write_iter+0x50/0xd4 [ 50.671100][ T3048] ext2_file_write_iter+0x10/0x1c [ 50.671978][ T3048] vfs_write+0x1ac/0x2c4 [ 50.672680][ T3048] __arm64_sys_pwrite64+0x84/0xc8 [ 50.673543][ T3048] invoke_syscall+0x40/0xdc [ 50.674293][ T3048] el0_svc_common+0xb0/0xe8 [ 50.675043][ T3048] do_el0_svc+0x24/0x80 [ 50.675735][ T3048] el0_svc+0x34/0xd4 [ 50.676378][ T3048] el0t_64_sync_handler+0x84/0xf0 [ 50.677225][ T3048] el0t_64_sync+0x18c/0x190 [ 50.677989][ T3048] ---[ end trace 0000000000000000 ]--- [ 50.678976][ T3048] ------------[ cut here ]------------ [ 50.679805][ T3048] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 50.679816][ T3048] WARNING: CPU: 1 PID: 3048 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.682377][ T3048] Modules linked in: [ 50.682976][ T3048] CPU: 1 PID: 3048 Comm: syz.2.39 Tainted: G W syzkaller #0 [ 50.684277][ T3048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.685873][ T3048] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.687161][ T3048] pc : read_block_bitmap+0xec/0x224 [ 50.688020][ T3048] lr : read_block_bitmap+0xe8/0x224 [ 50.688899][ T3048] sp : ffff80001284ba50 [ 50.689604][ T3048] x29: ffff80001284ba50 x28: ffff0000c4151400 x27: 0000000000000000 [ 50.690967][ T3048] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 50.692353][ T3048] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 50.693740][ T3048] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 50.695124][ T3048] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.696581][ T3048] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.698004][ T3048] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 1d028689b5738200 [ 50.699429][ T3048] x8 : 1d028689b5738200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.700829][ T3048] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.702239][ T3048] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.703634][ T3048] Call trace: [ 50.704194][ T3048] read_block_bitmap+0xec/0x224 [ 50.705021][ T3048] ext2_free_blocks+0x104/0x368 [ 50.705834][ T3048] __ext2_truncate_blocks+0xb8/0x550 [ 50.706763][ T3048] ext2_write_failed+0xa4/0xc0 [ 50.707586][ T3048] ext2_write_begin+0x54/0x6c [ 50.708369][ T3048] generic_perform_write+0x80/0x1e4 [ 50.709241][ T3048] __generic_file_write_iter+0x7c/0xc0 [ 50.710154][ T3048] generic_file_write_iter+0x50/0xd4 [ 50.711071][ T3048] ext2_file_write_iter+0x10/0x1c [ 50.711965][ T3048] vfs_write+0x1ac/0x2c4 [ 50.712730][ T3048] __arm64_sys_pwrite64+0x84/0xc8 [ 50.713616][ T3048] invoke_syscall+0x40/0xdc [ 50.714413][ T3048] el0_svc_common+0xb0/0xe8 [ 50.715184][ T3048] do_el0_svc+0x24/0x80 [ 50.715902][ T3048] el0_svc+0x34/0xd4 [ 50.716579][ T3048] el0t_64_sync_handler+0x84/0xf0 [ 50.717459][ T3048] el0t_64_sync+0x18c/0x190 [ 50.718249][ T3048] ---[ end trace 0000000000000000 ]--- [ 50.719523][ T3048] ------------[ cut here ]------------ [ 50.720403][ T3048] block_group >= groups_count - block_group = 3, groups_count = 1 [ 50.720417][ T3048] WARNING: CPU: 1 PID: 3048 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.723428][ T3048] Modules linked in: [ 50.724127][ T3048] CPU: 1 PID: 3048 Comm: syz.2.39 Tainted: G W syzkaller #0 [ 50.725721][ T3048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.727511][ T3048] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.728937][ T3048] pc : read_block_bitmap+0xec/0x224 [ 50.729888][ T3048] lr : read_block_bitmap+0xe8/0x224 [ 50.730786][ T3048] sp : ffff80001284ba50 [ 50.731573][ T3048] x29: ffff80001284ba50 x28: ffff0000c4151400 x27: 0000000000000000 [ 50.732947][ T3048] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 50.734374][ T3048] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 50.735760][ T3048] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 50.737127][ T3048] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.738492][ T3048] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.739855][ T3048] x11: 00000000ffffefff x10: ffff80000a901be4 x9 : 1d028689b5738200 [ 50.741269][ T3048] x8 : 1d028689b5738200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.742648][ T3048] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.743998][ T3048] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.745377][ T3048] Call trace: [ 50.745920][ T3048] read_block_bitmap+0xec/0x224 [ 50.746740][ T3048] ext2_free_blocks+0x104/0x368 [ 50.747565][ T3048] __ext2_truncate_blocks+0xb8/0x550 [ 50.748460][ T3048] ext2_write_failed+0xa4/0xc0 [ 50.749283][ T3048] ext2_write_begin+0x54/0x6c [ 50.750100][ T3048] generic_perform_write+0x80/0x1e4 [ 50.751074][ T3048] __generic_file_write_iter+0x7c/0xc0 [ 50.752061][ T3048] generic_file_write_iter+0x50/0xd4 [ 50.752995][ T3048] ext2_file_write_iter+0x10/0x1c [ 50.753887][ T3048] vfs_write+0x1ac/0x2c4 [ 50.754636][ T3048] __arm64_sys_pwrite64+0x84/0xc8 [ 50.755522][ T3048] invoke_syscall+0x40/0xdc [ 50.756314][ T3048] el0_svc_common+0xb0/0xe8 [ 50.757125][ T3048] do_el0_svc+0x24/0x80 [ 50.757849][ T3048] el0_svc+0x34/0xd4 [ 50.758529][ T3048] el0t_64_sync_handler+0x84/0xf0 [ 50.759401][ T3048] el0t_64_sync+0x18c/0x190 [ 50.760174][ T3048] ---[ end trace 0000000000000000 ]--- [ 50.761258][ T3048] ------------[ cut here ]------------ [ 50.762172][ T3048] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.762186][ T3048] WARNING: CPU: 1 PID: 3048 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.765234][ T3048] Modules linked in: [ 50.765939][ T3048] CPU: 1 PID: 3048 Comm: syz.2.39 Tainted: G W syzkaller #0 [ 50.767517][ T3048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.769344][ T3048] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.770774][ T3048] pc : read_block_bitmap+0xec/0x224 [ 50.771718][ T3048] lr : read_block_bitmap+0xe8/0x224 [ 50.772654][ T3048] sp : ffff80001284ba50 [ 50.773382][ T3048] x29: ffff80001284ba50 x28: ffff0000c4151400 x27: 0000000000000000 [ 50.774804][ T3048] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 50.776209][ T3048] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 50.777609][ T3048] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 50.778992][ T3048] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.780335][ T3048] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.781697][ T3048] x11: 00000000fffff023 x10: ffff80000a901be4 x9 : 1d028689b5738200 [ 50.783066][ T3048] x8 : 1d028689b5738200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.784445][ T3048] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.785804][ T3048] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.787163][ T3048] Call trace: [ 50.787711][ T3048] read_block_bitmap+0xec/0x224 [ 50.788535][ T3048] ext2_free_blocks+0x104/0x368 [ 50.789394][ T3048] __ext2_truncate_blocks+0x154/0x550 [ 50.790348][ T3048] ext2_write_failed+0xa4/0xc0 [ 50.791199][ T3048] ext2_write_begin+0x54/0x6c [ 50.792012][ T3048] generic_perform_write+0x80/0x1e4 [ 50.792904][ T3048] __generic_file_write_iter+0x7c/0xc0 [ 50.793860][ T3048] generic_file_write_iter+0x50/0xd4 [ 50.794787][ T3048] ext2_file_write_iter+0x10/0x1c [ 50.795640][ T3048] vfs_write+0x1ac/0x2c4 [ 50.796376][ T3048] __arm64_sys_pwrite64+0x84/0xc8 [ 50.797231][ T3048] invoke_syscall+0x40/0xdc [ 50.798000][ T3048] el0_svc_common+0xb0/0xe8 [ 50.798762][ T3048] do_el0_svc+0x24/0x80 [ 50.799463][ T3048] el0_svc+0x34/0xd4 [ 50.800138][ T3048] el0t_64_sync_handler+0x84/0xf0 [ 50.801012][ T3048] el0t_64_sync+0x18c/0x190 [ 50.801791][ T3048] ---[ end trace 0000000000000000 ]--- [ 50.806485][ T3050] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 50.807735][ T3050] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 50.808955][ T3050] ext2 filesystem being mounted at /23/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.817922][ T3050] ------------[ cut here ]------------ [ 50.818827][ T3050] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.818841][ T3050] WARNING: CPU: 0 PID: 3050 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 50.821516][ T3050] Modules linked in: [ 50.822127][ T3050] CPU: 0 PID: 3050 Comm: syz.2.40 Tainted: G W syzkaller #0 [ 50.823474][ T3050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.824974][ T3050] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.826278][ T3050] pc : ext2_new_blocks+0x418/0x564 [ 50.827167][ T3050] lr : ext2_new_blocks+0x418/0x564 [ 50.828067][ T3050] sp : ffff80001285b8f0 [ 50.828788][ T3050] x29: ffff80001285b940 x28: 0000000000010000 x27: 0000000000000008 [ 50.830205][ T3050] x26: ffff0000d4201400 x25: 0000000000010000 x24: ffff80001285b9f4 [ 50.831617][ T3050] x23: ffff0000c9ddb000 x22: 0000000000000000 x21: ffff80001285b9f8 [ 50.833037][ T3050] x20: ffff0000c5cf9b80 x19: ffff0000c8e7d378 x18: ffff80000a3f7ee1 [ 50.834514][ T3050] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.835947][ T3050] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.837386][ T3050] x11: 00000000fffff04d x10: ffff80000a901be4 x9 : e64c8805c0e13c00 [ 50.838776][ T3050] x8 : e64c8805c0e13c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.840173][ T3050] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.841616][ T3050] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 50.843034][ T3050] Call trace: [ 50.843631][ T3050] ext2_new_blocks+0x418/0x564 [ 50.844455][ T3050] ext2_get_blocks+0x4b4/0x9b0 [ 50.845293][ T3050] ext2_get_block+0x58/0x158 [ 50.846072][ T3050] __block_write_begin_int+0x10c/0x6f0 [ 50.847029][ T3050] block_write_begin+0x5c/0xa4 [ 50.847866][ T3050] ext2_write_begin+0x40/0x6c [ 50.848684][ T3050] generic_perform_write+0x80/0x1e4 [ 50.849646][ T3050] __generic_file_write_iter+0x7c/0xc0 [ 50.850633][ T3050] generic_file_write_iter+0x50/0xd4 [ 50.851585][ T3050] ext2_file_write_iter+0x10/0x1c [ 50.852537][ T3050] vfs_write+0x1ac/0x2c4 [ 50.853337][ T3050] __arm64_sys_pwrite64+0x84/0xc8 [ 50.854248][ T3050] invoke_syscall+0x40/0xdc [ 50.855044][ T3050] el0_svc_common+0xb0/0xe8 [ 50.855849][ T3050] do_el0_svc+0x24/0x80 [ 50.856592][ T3050] el0_svc+0x34/0xd4 [ 50.857277][ T3050] el0t_64_sync_handler+0x84/0xf0 [ 50.858182][ T3050] el0t_64_sync+0x18c/0x190 [ 50.858955][ T3050] ---[ end trace 0000000000000000 ]--- [ 50.859960][ T3050] ------------[ cut here ]------------ [ 50.860828][ T3050] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 50.860852][ T3050] WARNING: CPU: 0 PID: 3050 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.863446][ T3050] Modules linked in: [ 50.864040][ T3050] CPU: 0 PID: 3050 Comm: syz.2.40 Tainted: G W syzkaller #0 [ 50.865367][ T3050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.867092][ T3050] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.868460][ T3050] pc : read_block_bitmap+0xec/0x224 [ 50.869389][ T3050] lr : read_block_bitmap+0xe8/0x224 [ 50.870291][ T3050] sp : ffff80001285ba50 [ 50.871035][ T3050] x29: ffff80001285ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 50.872481][ T3050] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 50.873937][ T3050] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 50.875358][ T3050] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: 0000000000000000 [ 50.876785][ T3050] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 50.878228][ T3050] x14: 00000000000b11fd x13: 0000000001fbf042 x12: ffff80000e90c000 [ 50.879643][ T3050] x11: 0000000000000004 x10: 00000000ffffffff x9 : e64c8805c0e13c00 [ 50.881103][ T3050] x8 : e64c8805c0e13c00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 50.882591][ T3050] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.884050][ T3050] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 50.885517][ T3050] Call trace: [ 50.886073][ T3050] read_block_bitmap+0xec/0x224 [ 50.886908][ T3050] ext2_free_blocks+0x104/0x368 [ 50.887757][ T3050] __ext2_truncate_blocks+0xb8/0x550 [ 50.888686][ T3050] ext2_write_failed+0xa4/0xc0 [ 50.889519][ T3050] ext2_write_begin+0x54/0x6c [ 50.890335][ T3050] generic_perform_write+0x80/0x1e4 [ 50.891266][ T3050] __generic_file_write_iter+0x7c/0xc0 [ 50.892248][ T3050] generic_file_write_iter+0x50/0xd4 [ 50.893207][ T3050] ext2_file_write_iter+0x10/0x1c [ 50.894099][ T3050] vfs_write+0x1ac/0x2c4 [ 50.894855][ T3050] __arm64_sys_pwrite64+0x84/0xc8 [ 50.895731][ T3050] invoke_syscall+0x40/0xdc [ 50.896516][ T3050] el0_svc_common+0xb0/0xe8 [ 50.897345][ T3050] do_el0_svc+0x24/0x80 [ 50.898082][ T3050] el0_svc+0x34/0xd4 [ 50.898749][ T3050] el0t_64_sync_handler+0x84/0xf0 [ 50.899660][ T3050] el0t_64_sync+0x18c/0x190 [ 50.900435][ T3050] ---[ end trace 0000000000000000 ]--- [ 50.901603][ T3050] ------------[ cut here ]------------ [ 50.902499][ T3050] block_group >= groups_count - block_group = 3, groups_count = 1 [ 50.902511][ T3050] WARNING: CPU: 0 PID: 3050 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.904978][ T3050] Modules linked in: [ 50.905564][ T3050] CPU: 0 PID: 3050 Comm: syz.2.40 Tainted: G W syzkaller #0 [ 50.907077][ T3050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.908845][ T3050] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.910237][ T3050] pc : read_block_bitmap+0xec/0x224 [ 50.911144][ T3050] lr : read_block_bitmap+0xe8/0x224 [ 50.912048][ T3050] sp : ffff80001285ba50 [ 50.912777][ T3050] x29: ffff80001285ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 50.914162][ T3050] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 50.915562][ T3050] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 50.916958][ T3050] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: ffff80000a3f7ee1 [ 50.918328][ T3050] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.919731][ T3050] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.921108][ T3050] x11: 00000000fffff09c x10: ffff80000a901be4 x9 : e64c8805c0e13c00 [ 50.922512][ T3050] x8 : e64c8805c0e13c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.923906][ T3050] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.925307][ T3050] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.926679][ T3050] Call trace: [ 50.927239][ T3050] read_block_bitmap+0xec/0x224 [ 50.928113][ T3050] ext2_free_blocks+0x104/0x368 [ 50.929014][ T3050] __ext2_truncate_blocks+0xb8/0x550 [ 50.929967][ T3050] ext2_write_failed+0xa4/0xc0 [ 50.930787][ T3050] ext2_write_begin+0x54/0x6c [ 50.931623][ T3050] generic_perform_write+0x80/0x1e4 [ 50.932518][ T3050] __generic_file_write_iter+0x7c/0xc0 [ 50.933459][ T3050] generic_file_write_iter+0x50/0xd4 [ 50.934362][ T3050] ext2_file_write_iter+0x10/0x1c [ 50.935225][ T3050] vfs_write+0x1ac/0x2c4 [ 50.935977][ T3050] __arm64_sys_pwrite64+0x84/0xc8 [ 50.936867][ T3050] invoke_syscall+0x40/0xdc [ 50.937660][ T3050] el0_svc_common+0xb0/0xe8 [ 50.938467][ T3050] do_el0_svc+0x24/0x80 [ 50.939223][ T3050] el0_svc+0x34/0xd4 [ 50.939940][ T3050] el0t_64_sync_handler+0x84/0xf0 [ 50.940827][ T3050] el0t_64_sync+0x18c/0x190 [ 50.941616][ T3050] ---[ end trace 0000000000000000 ]--- [ 50.942643][ T3050] ------------[ cut here ]------------ [ 50.943489][ T3050] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.943502][ T3050] WARNING: CPU: 0 PID: 3050 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 50.946239][ T3050] Modules linked in: [ 50.946896][ T3050] CPU: 0 PID: 3050 Comm: syz.2.40 Tainted: G W syzkaller #0 [ 50.948376][ T3050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.950099][ T3050] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.951428][ T3050] pc : read_block_bitmap+0xec/0x224 [ 50.952355][ T3050] lr : read_block_bitmap+0xe8/0x224 [ 50.953268][ T3050] sp : ffff80001285ba50 [ 50.954009][ T3050] x29: ffff80001285ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 50.955420][ T3050] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 50.956858][ T3050] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 50.958325][ T3050] x20: 0000000000000000 x19: ffff0000c9ddb000 x18: ffff80000a3f7ee1 [ 50.959805][ T3050] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 50.961225][ T3050] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 50.962635][ T3050] x11: 00000000fffff0c3 x10: ffff80000a901be4 x9 : e64c8805c0e13c00 [ 50.964085][ T3050] x8 : e64c8805c0e13c00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 50.965510][ T3050] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 50.966997][ T3050] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 50.968387][ T3050] Call trace: [ 50.968966][ T3050] read_block_bitmap+0xec/0x224 [ 50.969825][ T3050] ext2_free_blocks+0x104/0x368 [ 50.970680][ T3050] __ext2_truncate_blocks+0x154/0x550 [ 50.971620][ T3050] ext2_write_failed+0xa4/0xc0 [ 50.972457][ T3050] ext2_write_begin+0x54/0x6c [ 50.973281][ T3050] generic_perform_write+0x80/0x1e4 [ 50.974197][ T3050] __generic_file_write_iter+0x7c/0xc0 [ 50.975163][ T3050] generic_file_write_iter+0x50/0xd4 [ 50.976080][ T3050] ext2_file_write_iter+0x10/0x1c [ 50.976944][ T3050] vfs_write+0x1ac/0x2c4 [ 50.977702][ T3050] __arm64_sys_pwrite64+0x84/0xc8 [ 50.978608][ T3050] invoke_syscall+0x40/0xdc [ 50.979442][ T3050] el0_svc_common+0xb0/0xe8 [ 50.980240][ T3050] do_el0_svc+0x24/0x80 [ 50.980944][ T3050] el0_svc+0x34/0xd4 [ 50.981607][ T3050] el0t_64_sync_handler+0x84/0xf0 [ 50.982494][ T3050] el0t_64_sync+0x18c/0x190 [ 50.983268][ T3050] ---[ end trace 0000000000000000 ]--- [ 50.987283][ T3052] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 50.988575][ T3052] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 50.989810][ T3052] ext2 filesystem being mounted at /24/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.993664][ T3052] ------------[ cut here ]------------ [ 50.994554][ T3052] block_group >= groups_count - block_group = 7, groups_count = 1 [ 50.994611][ T3052] WARNING: CPU: 1 PID: 3052 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 50.997671][ T3052] Modules linked in: [ 50.998394][ T3052] CPU: 1 PID: 3052 Comm: syz.2.41 Tainted: G W syzkaller #0 [ 51.000057][ T3052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.001862][ T3052] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.003295][ T3052] pc : ext2_new_blocks+0x418/0x564 [ 51.004228][ T3052] lr : ext2_new_blocks+0x418/0x564 [ 51.005156][ T3052] sp : ffff8000121f38f0 [ 51.005917][ T3052] x29: ffff8000121f3940 x28: 0000000000010000 x27: 0000000000000008 [ 51.007335][ T3052] x26: ffff0000d4278400 x25: 0000000000010000 x24: ffff8000121f39f4 [ 51.008811][ T3052] x23: ffff0000c5ec6000 x22: 0000000000000000 x21: ffff8000121f39f8 [ 51.010207][ T3052] x20: ffff0000c9451300 x19: ffff0000c8ef4d98 x18: 0000000000000000 [ 51.011601][ T3052] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 51.013005][ T3052] x14: 0000000000100000 x13: 000000000232300e x12: ffff80000e90c000 [ 51.014396][ T3052] x11: 0000000000000003 x10: 00000000ffffffff x9 : b97f9e481fab8400 [ 51.015836][ T3052] x8 : b97f9e481fab8400 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 51.017234][ T3052] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.018676][ T3052] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 51.020207][ T3052] Call trace: [ 51.020781][ T3052] ext2_new_blocks+0x418/0x564 [ 51.021626][ T3052] ext2_get_blocks+0x4b4/0x9b0 [ 51.022478][ T3052] ext2_get_block+0x58/0x158 [ 51.023292][ T3052] __block_write_begin_int+0x10c/0x6f0 [ 51.024245][ T3052] block_write_begin+0x5c/0xa4 [ 51.025075][ T3052] ext2_write_begin+0x40/0x6c [ 51.025892][ T3052] generic_perform_write+0x80/0x1e4 [ 51.026806][ T3052] __generic_file_write_iter+0x7c/0xc0 [ 51.027771][ T3052] generic_file_write_iter+0x50/0xd4 [ 51.028708][ T3052] ext2_file_write_iter+0x10/0x1c [ 51.029596][ T3052] vfs_write+0x1ac/0x2c4 [ 51.030366][ T3052] __arm64_sys_pwrite64+0x84/0xc8 [ 51.031291][ T3052] invoke_syscall+0x40/0xdc [ 51.032116][ T3052] el0_svc_common+0xb0/0xe8 [ 51.032941][ T3052] do_el0_svc+0x24/0x80 [ 51.033665][ T3052] el0_svc+0x34/0xd4 [ 51.034329][ T3052] el0t_64_sync_handler+0x84/0xf0 [ 51.035205][ T3052] el0t_64_sync+0x18c/0x190 [ 51.035953][ T3052] ---[ end trace 0000000000000000 ]--- [ 51.037023][ T3052] ------------[ cut here ]------------ [ 51.037875][ T3052] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 51.037887][ T3052] WARNING: CPU: 1 PID: 3052 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.040641][ T3052] Modules linked in: [ 51.041271][ T3052] CPU: 1 PID: 3052 Comm: syz.2.41 Tainted: G W syzkaller #0 [ 51.042677][ T3052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.044386][ T3052] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.045793][ T3052] pc : read_block_bitmap+0xec/0x224 [ 51.046748][ T3052] lr : read_block_bitmap+0xe8/0x224 [ 51.047698][ T3052] sp : ffff8000121f3a50 [ 51.048467][ T3052] x29: ffff8000121f3a50 x28: ffff0000c4153400 x27: 0000000000000000 [ 51.049924][ T3052] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 51.051320][ T3052] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 51.052805][ T3052] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 51.054291][ T3052] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.055752][ T3052] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.057190][ T3052] x11: 00000000fffff115 x10: ffff80000a901be4 x9 : b97f9e481fab8400 [ 51.058624][ T3052] x8 : b97f9e481fab8400 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.060049][ T3052] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.061489][ T3052] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.062950][ T3052] Call trace: [ 51.063533][ T3052] read_block_bitmap+0xec/0x224 [ 51.064400][ T3052] ext2_free_blocks+0x104/0x368 [ 51.065270][ T3052] __ext2_truncate_blocks+0xb8/0x550 [ 51.066250][ T3052] ext2_write_failed+0xa4/0xc0 [ 51.067140][ T3052] ext2_write_begin+0x54/0x6c [ 51.068015][ T3052] generic_perform_write+0x80/0x1e4 [ 51.068954][ T3052] __generic_file_write_iter+0x7c/0xc0 [ 51.069924][ T3052] generic_file_write_iter+0x50/0xd4 [ 51.070878][ T3052] ext2_file_write_iter+0x10/0x1c [ 51.071769][ T3052] vfs_write+0x1ac/0x2c4 [ 51.072537][ T3052] __arm64_sys_pwrite64+0x84/0xc8 [ 51.073436][ T3052] invoke_syscall+0x40/0xdc [ 51.074241][ T3052] el0_svc_common+0xb0/0xe8 [ 51.075004][ T3052] do_el0_svc+0x24/0x80 [ 51.075707][ T3052] el0_svc+0x34/0xd4 [ 51.076397][ T3052] el0t_64_sync_handler+0x84/0xf0 [ 51.077278][ T3052] el0t_64_sync+0x18c/0x190 [ 51.078087][ T3052] ---[ end trace 0000000000000000 ]--- [ 51.079245][ T3052] ------------[ cut here ]------------ [ 51.080056][ T3052] block_group >= groups_count - block_group = 3, groups_count = 1 [ 51.080070][ T3052] WARNING: CPU: 1 PID: 3052 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.082663][ T3052] Modules linked in: [ 51.083264][ T3052] CPU: 1 PID: 3052 Comm: syz.2.41 Tainted: G W syzkaller #0 [ 51.084628][ T3052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.086324][ T3052] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.087684][ T3052] pc : read_block_bitmap+0xec/0x224 [ 51.088628][ T3052] lr : read_block_bitmap+0xe8/0x224 [ 51.089542][ T3052] sp : ffff8000121f3a50 [ 51.090272][ T3052] x29: ffff8000121f3a50 x28: ffff0000c4153400 x27: 0000000000000000 [ 51.091708][ T3052] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 51.093135][ T3052] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 51.094573][ T3052] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 51.096026][ T3052] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.097487][ T3052] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.098963][ T3052] x11: 00000000fffff13c x10: ffff80000a901be4 x9 : b97f9e481fab8400 [ 51.100378][ T3052] x8 : b97f9e481fab8400 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.101803][ T3052] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.103200][ T3052] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.104568][ T3052] Call trace: [ 51.105172][ T3052] read_block_bitmap+0xec/0x224 [ 51.105969][ T3052] ext2_free_blocks+0x104/0x368 [ 51.106813][ T3052] __ext2_truncate_blocks+0xb8/0x550 [ 51.107743][ T3052] ext2_write_failed+0xa4/0xc0 [ 51.108587][ T3052] ext2_write_begin+0x54/0x6c [ 51.109412][ T3052] generic_perform_write+0x80/0x1e4 [ 51.110323][ T3052] __generic_file_write_iter+0x7c/0xc0 [ 51.111299][ T3052] generic_file_write_iter+0x50/0xd4 [ 51.112228][ T3052] ext2_file_write_iter+0x10/0x1c [ 51.113096][ T3052] vfs_write+0x1ac/0x2c4 [ 51.113836][ T3052] __arm64_sys_pwrite64+0x84/0xc8 [ 51.114704][ T3052] invoke_syscall+0x40/0xdc [ 51.115521][ T3052] el0_svc_common+0xb0/0xe8 [ 51.116359][ T3052] do_el0_svc+0x24/0x80 [ 51.117122][ T3052] el0_svc+0x34/0xd4 [ 51.117827][ T3052] el0t_64_sync_handler+0x84/0xf0 [ 51.118722][ T3052] el0t_64_sync+0x18c/0x190 [ 51.119537][ T3052] ---[ end trace 0000000000000000 ]--- [ 51.120557][ T3052] ------------[ cut here ]------------ [ 51.121410][ T3052] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.121425][ T3052] WARNING: CPU: 1 PID: 3052 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.124020][ T3052] Modules linked in: [ 51.124630][ T3052] CPU: 1 PID: 3052 Comm: syz.2.41 Tainted: G W syzkaller #0 [ 51.126034][ T3052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.127873][ T3052] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.129259][ T3052] pc : read_block_bitmap+0xec/0x224 [ 51.130163][ T3052] lr : read_block_bitmap+0xe8/0x224 [ 51.131060][ T3052] sp : ffff8000121f3a50 [ 51.131815][ T3052] x29: ffff8000121f3a50 x28: ffff0000c4153400 x27: 0000000000000000 [ 51.133262][ T3052] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 51.134680][ T3052] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 51.136105][ T3052] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 51.137527][ T3052] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.138927][ T3052] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.140341][ T3052] x11: 00000000fffff163 x10: ffff80000a901be4 x9 : b97f9e481fab8400 [ 51.141802][ T3052] x8 : b97f9e481fab8400 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.143249][ T3052] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.144664][ T3052] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.146080][ T3052] Call trace: [ 51.146639][ T3052] read_block_bitmap+0xec/0x224 [ 51.147480][ T3052] ext2_free_blocks+0x104/0x368 [ 51.148302][ T3052] __ext2_truncate_blocks+0x154/0x550 [ 51.149215][ T3052] ext2_write_failed+0xa4/0xc0 [ 51.150112][ T3052] ext2_write_begin+0x54/0x6c [ 51.150980][ T3052] generic_perform_write+0x80/0x1e4 [ 51.151977][ T3052] __generic_file_write_iter+0x7c/0xc0 [ 51.153063][ T3052] generic_file_write_iter+0x50/0xd4 [ 51.154012][ T3052] ext2_file_write_iter+0x10/0x1c [ 51.154927][ T3052] vfs_write+0x1ac/0x2c4 [ 51.155684][ T3052] __arm64_sys_pwrite64+0x84/0xc8 [ 51.156574][ T3052] invoke_syscall+0x40/0xdc [ 51.157364][ T3052] el0_svc_common+0xb0/0xe8 [ 51.158169][ T3052] do_el0_svc+0x24/0x80 [ 51.158918][ T3052] el0_svc+0x34/0xd4 [ 51.159622][ T3052] el0t_64_sync_handler+0x84/0xf0 [ 51.160514][ T3052] el0t_64_sync+0x18c/0x190 [ 51.161289][ T3052] ---[ end trace 0000000000000000 ]--- [ 51.167776][ T3054] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 51.168926][ T3054] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 51.170174][ T3054] ext2 filesystem being mounted at /25/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.177518][ T3054] ------------[ cut here ]------------ [ 51.178435][ T3054] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.178447][ T3054] WARNING: CPU: 1 PID: 3054 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 51.181138][ T3054] Modules linked in: [ 51.181741][ T3054] CPU: 1 PID: 3054 Comm: syz.2.42 Tainted: G W syzkaller #0 [ 51.183113][ T3054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.184699][ T3054] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.186024][ T3054] pc : ext2_new_blocks+0x418/0x564 [ 51.186986][ T3054] lr : ext2_new_blocks+0x418/0x564 [ 51.187914][ T3054] sp : ffff80001285b8f0 [ 51.188661][ T3054] x29: ffff80001285b940 x28: 0000000000010000 x27: 0000000000000008 [ 51.190095][ T3054] x26: ffff0000d41cf400 x25: 0000000000010000 x24: ffff80001285b9f4 [ 51.191528][ T3054] x23: ffff0000c5ec3000 x22: 0000000000000000 x21: ffff80001285b9f8 [ 51.192969][ T3054] x20: ffff0000c9451080 x19: ffff0000c8ef5958 x18: ffff80000a3f7ee1 [ 51.194408][ T3054] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.195847][ T3054] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.197283][ T3054] x11: 00000000fffff18d x10: ffff80000a901be4 x9 : b4d2a17e20e5a300 [ 51.198755][ T3054] x8 : b4d2a17e20e5a300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.200241][ T3054] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.201591][ T3054] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 51.203017][ T3054] Call trace: [ 51.203584][ T3054] ext2_new_blocks+0x418/0x564 [ 51.204413][ T3054] ext2_get_blocks+0x4b4/0x9b0 [ 51.205249][ T3054] ext2_get_block+0x58/0x158 [ 51.206057][ T3054] __block_write_begin_int+0x10c/0x6f0 [ 51.207015][ T3054] block_write_begin+0x5c/0xa4 [ 51.207827][ T3054] ext2_write_begin+0x40/0x6c [ 51.208631][ T3054] generic_perform_write+0x80/0x1e4 [ 51.209516][ T3054] __generic_file_write_iter+0x7c/0xc0 [ 51.210444][ T3054] generic_file_write_iter+0x50/0xd4 [ 51.211371][ T3054] ext2_file_write_iter+0x10/0x1c [ 51.212286][ T3054] vfs_write+0x1ac/0x2c4 [ 51.213013][ T3054] __arm64_sys_pwrite64+0x84/0xc8 [ 51.213888][ T3054] invoke_syscall+0x40/0xdc [ 51.214668][ T3054] el0_svc_common+0xb0/0xe8 [ 51.215442][ T3054] do_el0_svc+0x24/0x80 [ 51.216190][ T3054] el0_svc+0x34/0xd4 [ 51.216856][ T3054] el0t_64_sync_handler+0x84/0xf0 [ 51.217719][ T3054] el0t_64_sync+0x18c/0x190 [ 51.218492][ T3054] ---[ end trace 0000000000000000 ]--- [ 51.219507][ T3054] ------------[ cut here ]------------ [ 51.220346][ T3054] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 51.220367][ T3054] WARNING: CPU: 1 PID: 3054 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.222988][ T3054] Modules linked in: [ 51.223580][ T3054] CPU: 1 PID: 3054 Comm: syz.2.42 Tainted: G W syzkaller #0 [ 51.224892][ T3054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.226564][ T3054] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.227919][ T3054] pc : read_block_bitmap+0xec/0x224 [ 51.228832][ T3054] lr : read_block_bitmap+0xe8/0x224 [ 51.229741][ T3054] sp : ffff80001285ba50 [ 51.230457][ T3054] x29: ffff80001285ba50 x28: ffff0000c4153000 x27: 0000000000000000 [ 51.231833][ T3054] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 51.233244][ T3054] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 51.234620][ T3054] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: 0000000000000000 [ 51.235980][ T3054] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 51.237374][ T3054] x14: 00000000000b8bd1 x13: 0000000002496c7b x12: ffff80000e90c000 [ 51.238777][ T3054] x11: 0000000000000004 x10: 00000000ffffffff x9 : b4d2a17e20e5a300 [ 51.240178][ T3054] x8 : b4d2a17e20e5a300 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 51.241563][ T3054] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.242936][ T3054] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 51.244303][ T3054] Call trace: [ 51.244852][ T3054] read_block_bitmap+0xec/0x224 [ 51.245696][ T3054] ext2_free_blocks+0x104/0x368 [ 51.246535][ T3054] __ext2_truncate_blocks+0xb8/0x550 [ 51.247433][ T3054] ext2_write_failed+0xa4/0xc0 [ 51.248248][ T3054] ext2_write_begin+0x54/0x6c [ 51.249036][ T3054] generic_perform_write+0x80/0x1e4 [ 51.249930][ T3054] __generic_file_write_iter+0x7c/0xc0 [ 51.250846][ T3054] generic_file_write_iter+0x50/0xd4 [ 51.251737][ T3054] ext2_file_write_iter+0x10/0x1c [ 51.252625][ T3054] vfs_write+0x1ac/0x2c4 [ 51.253340][ T3054] __arm64_sys_pwrite64+0x84/0xc8 [ 51.254168][ T3054] invoke_syscall+0x40/0xdc [ 51.254915][ T3054] el0_svc_common+0xb0/0xe8 [ 51.255671][ T3054] do_el0_svc+0x24/0x80 [ 51.256390][ T3054] el0_svc+0x34/0xd4 [ 51.257064][ T3054] el0t_64_sync_handler+0x84/0xf0 [ 51.257937][ T3054] el0t_64_sync+0x18c/0x190 [ 51.258722][ T3054] ---[ end trace 0000000000000000 ]--- [ 51.259866][ T3054] ------------[ cut here ]------------ [ 51.260758][ T3054] block_group >= groups_count - block_group = 3, groups_count = 1 [ 51.260772][ T3054] WARNING: CPU: 1 PID: 3054 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.263417][ T3054] Modules linked in: [ 51.264018][ T3054] CPU: 1 PID: 3054 Comm: syz.2.42 Tainted: G W syzkaller #0 [ 51.265328][ T3054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.267098][ T3054] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.268419][ T3054] pc : read_block_bitmap+0xec/0x224 [ 51.269373][ T3054] lr : read_block_bitmap+0xe8/0x224 [ 51.270272][ T3054] sp : ffff80001285ba50 [ 51.271029][ T3054] x29: ffff80001285ba50 x28: ffff0000c4153000 x27: 0000000000000000 [ 51.272397][ T3054] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 51.273793][ T3054] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 51.275168][ T3054] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: ffff80000a3f7ee1 [ 51.276619][ T3054] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.278036][ T3054] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.279459][ T3054] x11: 00000000fffff1dc x10: ffff80000a901be4 x9 : b4d2a17e20e5a300 [ 51.280844][ T3054] x8 : b4d2a17e20e5a300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.282198][ T3054] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.283553][ T3054] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.284919][ T3054] Call trace: [ 51.285493][ T3054] read_block_bitmap+0xec/0x224 [ 51.286324][ T3054] ext2_free_blocks+0x104/0x368 [ 51.287174][ T3054] __ext2_truncate_blocks+0xb8/0x550 [ 51.288096][ T3054] ext2_write_failed+0xa4/0xc0 [ 51.288900][ T3054] ext2_write_begin+0x54/0x6c [ 51.289701][ T3054] generic_perform_write+0x80/0x1e4 [ 51.290577][ T3054] __generic_file_write_iter+0x7c/0xc0 [ 51.291557][ T3054] generic_file_write_iter+0x50/0xd4 [ 51.292511][ T3054] ext2_file_write_iter+0x10/0x1c [ 51.293349][ T3054] vfs_write+0x1ac/0x2c4 [ 51.294077][ T3054] __arm64_sys_pwrite64+0x84/0xc8 [ 51.294996][ T3054] invoke_syscall+0x40/0xdc [ 51.295798][ T3054] el0_svc_common+0xb0/0xe8 [ 51.296604][ T3054] do_el0_svc+0x24/0x80 [ 51.297387][ T3054] el0_svc+0x34/0xd4 [ 51.298089][ T3054] el0t_64_sync_handler+0x84/0xf0 [ 51.298987][ T3054] el0t_64_sync+0x18c/0x190 [ 51.299825][ T3054] ---[ end trace 0000000000000000 ]--- [ 51.300833][ T3054] ------------[ cut here ]------------ [ 51.301708][ T3054] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.301722][ T3054] WARNING: CPU: 1 PID: 3054 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.304332][ T3054] Modules linked in: [ 51.304921][ T3054] CPU: 1 PID: 3054 Comm: syz.2.42 Tainted: G W syzkaller #0 [ 51.306343][ T3054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.308110][ T3054] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.309492][ T3054] pc : read_block_bitmap+0xec/0x224 [ 51.310401][ T3054] lr : read_block_bitmap+0xe8/0x224 [ 51.311304][ T3054] sp : ffff80001285ba50 [ 51.312028][ T3054] x29: ffff80001285ba50 x28: ffff0000c4153000 x27: 0000000000000000 [ 51.313499][ T3054] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 51.314983][ T3054] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 51.316452][ T3054] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: ffff80000a3f7ee1 [ 51.317897][ T3054] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.319341][ T3054] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.320744][ T3054] x11: 00000000fffff203 x10: ffff80000a901be4 x9 : b4d2a17e20e5a300 [ 51.322135][ T3054] x8 : b4d2a17e20e5a300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.323547][ T3054] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.324985][ T3054] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.326348][ T3054] Call trace: [ 51.326901][ T3054] read_block_bitmap+0xec/0x224 [ 51.327762][ T3054] ext2_free_blocks+0x104/0x368 [ 51.328591][ T3054] __ext2_truncate_blocks+0x154/0x550 [ 51.329501][ T3054] ext2_write_failed+0xa4/0xc0 [ 51.330275][ T3054] ext2_write_begin+0x54/0x6c [ 51.331140][ T3054] generic_perform_write+0x80/0x1e4 [ 51.332063][ T3054] __generic_file_write_iter+0x7c/0xc0 [ 51.333024][ T3054] generic_file_write_iter+0x50/0xd4 [ 51.333951][ T3054] ext2_file_write_iter+0x10/0x1c [ 51.334782][ T3054] vfs_write+0x1ac/0x2c4 [ 51.335525][ T3054] __arm64_sys_pwrite64+0x84/0xc8 [ 51.336400][ T3054] invoke_syscall+0x40/0xdc [ 51.337209][ T3054] el0_svc_common+0xb0/0xe8 [ 51.338004][ T3054] do_el0_svc+0x24/0x80 [ 51.338724][ T3054] el0_svc+0x34/0xd4 [ 51.339419][ T3054] el0t_64_sync_handler+0x84/0xf0 [ 51.340322][ T3054] el0t_64_sync+0x18c/0x190 [ 51.341104][ T3054] ---[ end trace 0000000000000000 ]--- [ 51.349346][ T3058] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 51.350509][ T3058] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 51.351698][ T3058] ext2 filesystem being mounted at /27/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.360365][ T3058] ------------[ cut here ]------------ [ 51.361313][ T3058] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.361333][ T3058] WARNING: CPU: 1 PID: 3058 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 51.364049][ T3058] Modules linked in: [ 51.364688][ T3058] CPU: 1 PID: 3058 Comm: syz.2.44 Tainted: G W syzkaller #0 [ 51.366135][ T3058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.367989][ T3058] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.369366][ T3058] pc : ext2_new_blocks+0x418/0x564 [ 51.370280][ T3058] lr : ext2_new_blocks+0x418/0x564 [ 51.371188][ T3058] sp : ffff80001284b8f0 [ 51.371922][ T3058] x29: ffff80001284b940 x28: 0000000000010000 x27: 0000000000000008 [ 51.373365][ T3058] x26: ffff0000d096a400 x25: 0000000000010000 x24: ffff80001284b9f4 [ 51.374807][ T3058] x23: ffff0000c5ec4000 x22: 0000000000000000 x21: ffff80001284b9f8 [ 51.376248][ T3058] x20: ffff0000c5f42c00 x19: ffff0000c8ef6518 x18: 0000000000000000 [ 51.377690][ T3058] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 51.379157][ T3058] x14: 00000000000fc832 x13: 00000000023eb281 x12: ffff80000e90c000 [ 51.380596][ T3058] x11: 0000000000000003 x10: 00000000ffffffff x9 : 2e56a0f5ab346200 [ 51.382041][ T3058] x8 : 2e56a0f5ab346200 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 51.383424][ T3058] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.384891][ T3058] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 51.386326][ T3058] Call trace: [ 51.386872][ T3058] ext2_new_blocks+0x418/0x564 [ 51.387714][ T3058] ext2_get_blocks+0x4b4/0x9b0 [ 51.388545][ T3058] ext2_get_block+0x58/0x158 [ 51.389325][ T3058] __block_write_begin_int+0x10c/0x6f0 [ 51.390297][ T3058] block_write_begin+0x5c/0xa4 [ 51.391144][ T3058] ext2_write_begin+0x40/0x6c [ 51.391955][ T3058] generic_perform_write+0x80/0x1e4 [ 51.392848][ T3058] __generic_file_write_iter+0x7c/0xc0 [ 51.393803][ T3058] generic_file_write_iter+0x50/0xd4 [ 51.394684][ T3058] ext2_file_write_iter+0x10/0x1c [ 51.395531][ T3058] vfs_write+0x1ac/0x2c4 [ 51.396230][ T3058] __arm64_sys_pwrite64+0x84/0xc8 [ 51.397105][ T3058] invoke_syscall+0x40/0xdc [ 51.397876][ T3058] el0_svc_common+0xb0/0xe8 [ 51.398654][ T3058] do_el0_svc+0x24/0x80 [ 51.399367][ T3058] el0_svc+0x34/0xd4 [ 51.400039][ T3058] el0t_64_sync_handler+0x84/0xf0 [ 51.400903][ T3058] el0t_64_sync+0x18c/0x190 [ 51.401666][ T3058] ---[ end trace 0000000000000000 ]--- [ 51.402686][ T3058] ------------[ cut here ]------------ [ 51.403527][ T3058] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 51.403564][ T3058] WARNING: CPU: 1 PID: 3058 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.406193][ T3058] Modules linked in: [ 51.406888][ T3058] CPU: 1 PID: 3058 Comm: syz.2.44 Tainted: G W syzkaller #0 [ 51.408437][ T3058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.410148][ T3058] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.411486][ T3058] pc : read_block_bitmap+0xec/0x224 [ 51.412354][ T3058] lr : read_block_bitmap+0xe8/0x224 [ 51.413249][ T3058] sp : ffff80001284ba50 [ 51.413949][ T3058] x29: ffff80001284ba50 x28: ffff0000c4151000 x27: 0000000000000000 [ 51.415343][ T3058] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 51.416754][ T3058] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 51.418146][ T3058] x20: 0000000000000000 x19: ffff0000c5ec4000 x18: 0000000000000000 [ 51.419502][ T3058] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 51.420866][ T3058] x14: 00000000000fdef1 x13: 0000000002967855 x12: ffff80000e90c000 [ 51.422226][ T3058] x11: 0000000000000004 x10: 00000000ffffffff x9 : 2e56a0f5ab346200 [ 51.423595][ T3058] x8 : 2e56a0f5ab346200 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 51.424955][ T3058] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.426364][ T3058] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 51.427728][ T3058] Call trace: [ 51.428274][ T3058] read_block_bitmap+0xec/0x224 [ 51.429103][ T3058] ext2_free_blocks+0x104/0x368 [ 51.429926][ T3058] __ext2_truncate_blocks+0xb8/0x550 [ 51.430840][ T3058] ext2_write_failed+0xa4/0xc0 [ 51.431667][ T3058] ext2_write_begin+0x54/0x6c [ 51.432480][ T3058] generic_perform_write+0x80/0x1e4 [ 51.433384][ T3058] __generic_file_write_iter+0x7c/0xc0 [ 51.434333][ T3058] generic_file_write_iter+0x50/0xd4 [ 51.435247][ T3058] ext2_file_write_iter+0x10/0x1c [ 51.436145][ T3058] vfs_write+0x1ac/0x2c4 [ 51.436879][ T3058] __arm64_sys_pwrite64+0x84/0xc8 [ 51.437838][ T3058] invoke_syscall+0x40/0xdc [ 51.438659][ T3058] el0_svc_common+0xb0/0xe8 [ 51.439493][ T3058] do_el0_svc+0x24/0x80 [ 51.440279][ T3058] el0_svc+0x34/0xd4 2026/10/15 05:01:39 executed programs: 28 [ 51.440983][ T3058] el0t_64_sync_handler+0x84/0xf0 [ 51.441877][ T3058] el0t_64_sync+0x18c/0x190 [ 51.442654][ T3058] ---[ end trace 0000000000000000 ]--- [ 51.443814][ T3058] ------------[ cut here ]------------ [ 51.444711][ T3058] block_group >= groups_count - block_group = 3, groups_count = 1 [ 51.444718][ T3058] WARNING: CPU: 1 PID: 3058 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.447669][ T3058] Modules linked in: [ 51.448366][ T3058] CPU: 1 PID: 3058 Comm: syz.2.44 Tainted: G W syzkaller #0 [ 51.449928][ T3058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.451731][ T3058] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.453119][ T3058] pc : read_block_bitmap+0xec/0x224 [ 51.454052][ T3058] lr : read_block_bitmap+0xe8/0x224 [ 51.454968][ T3058] sp : ffff80001284ba50 [ 51.455689][ T3058] x29: ffff80001284ba50 x28: ffff0000c4151000 x27: 0000000000000000 [ 51.457106][ T3058] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 51.458504][ T3058] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 51.459861][ T3058] x20: 0000000000000000 x19: ffff0000c5ec4000 x18: ffff80000a3f7ee1 [ 51.461227][ T3058] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.462577][ T3058] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.463962][ T3058] x11: 00000000fffff27c x10: ffff80000a901be4 x9 : 2e56a0f5ab346200 [ 51.465348][ T3058] x8 : 2e56a0f5ab346200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.466717][ T3058] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.468096][ T3058] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.469454][ T3058] Call trace: [ 51.469998][ T3058] read_block_bitmap+0xec/0x224 [ 51.470833][ T3058] ext2_free_blocks+0x104/0x368 [ 51.471678][ T3058] __ext2_truncate_blocks+0xb8/0x550 [ 51.472580][ T3058] ext2_write_failed+0xa4/0xc0 [ 51.473400][ T3058] ext2_write_begin+0x54/0x6c [ 51.474216][ T3058] generic_perform_write+0x80/0x1e4 [ 51.475121][ T3058] __generic_file_write_iter+0x7c/0xc0 [ 51.476071][ T3058] generic_file_write_iter+0x50/0xd4 [ 51.476994][ T3058] ext2_file_write_iter+0x10/0x1c [ 51.477873][ T3058] vfs_write+0x1ac/0x2c4 [ 51.478600][ T3058] __arm64_sys_pwrite64+0x84/0xc8 [ 51.479491][ T3058] invoke_syscall+0x40/0xdc [ 51.480295][ T3058] el0_svc_common+0xb0/0xe8 [ 51.481117][ T3058] do_el0_svc+0x24/0x80 [ 51.481854][ T3058] el0_svc+0x34/0xd4 [ 51.482548][ T3058] el0t_64_sync_handler+0x84/0xf0 [ 51.483440][ T3058] el0t_64_sync+0x18c/0x190 [ 51.484234][ T3058] ---[ end trace 0000000000000000 ]--- [ 51.485266][ T3058] ------------[ cut here ]------------ [ 51.486231][ T3058] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.486241][ T3058] WARNING: CPU: 1 PID: 3058 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.488847][ T3058] Modules linked in: [ 51.489419][ T3058] CPU: 1 PID: 3058 Comm: syz.2.44 Tainted: G W syzkaller #0 [ 51.490782][ T3058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.492452][ T3058] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.493646][ T3058] pc : read_block_bitmap+0xec/0x224 [ 51.494454][ T3058] lr : read_block_bitmap+0xe8/0x224 [ 51.495242][ T3058] sp : ffff80001284ba50 [ 51.495936][ T3058] x29: ffff80001284ba50 x28: ffff0000c4151000 x27: 0000000000000000 [ 51.497400][ T3058] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 51.498830][ T3058] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 51.500315][ T3058] x20: 0000000000000000 x19: ffff0000c5ec4000 x18: ffff80000a3f7ee1 [ 51.501731][ T3058] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.503137][ T3058] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.504565][ T3058] x11: 00000000fffff2a3 x10: ffff80000a901be4 x9 : 2e56a0f5ab346200 [ 51.505950][ T3058] x8 : 2e56a0f5ab346200 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.507342][ T3058] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.508747][ T3058] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.510157][ T3058] Call trace: [ 51.510715][ T3058] read_block_bitmap+0xec/0x224 [ 51.511598][ T3058] ext2_free_blocks+0x104/0x368 [ 51.512446][ T3058] __ext2_truncate_blocks+0x154/0x550 [ 51.513369][ T3058] ext2_write_failed+0xa4/0xc0 [ 51.514243][ T3058] ext2_write_begin+0x54/0x6c [ 51.515071][ T3058] generic_perform_write+0x80/0x1e4 [ 51.515993][ T3058] __generic_file_write_iter+0x7c/0xc0 [ 51.516956][ T3058] generic_file_write_iter+0x50/0xd4 [ 51.517879][ T3058] ext2_file_write_iter+0x10/0x1c [ 51.518766][ T3058] vfs_write+0x1ac/0x2c4 [ 51.519507][ T3058] __arm64_sys_pwrite64+0x84/0xc8 [ 51.520375][ T3058] invoke_syscall+0x40/0xdc [ 51.521140][ T3058] el0_svc_common+0xb0/0xe8 [ 51.521928][ T3058] do_el0_svc+0x24/0x80 [ 51.522657][ T3058] el0_svc+0x34/0xd4 [ 51.523365][ T3058] el0t_64_sync_handler+0x84/0xf0 [ 51.524253][ T3058] el0t_64_sync+0x18c/0x190 [ 51.525025][ T3058] ---[ end trace 0000000000000000 ]--- [ 51.529378][ T3060] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 51.530626][ T3060] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 51.531902][ T3060] ext2 filesystem being mounted at /28/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.535979][ T3060] ------------[ cut here ]------------ [ 51.536996][ T3060] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.537008][ T3060] WARNING: CPU: 1 PID: 3060 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 51.539904][ T3060] Modules linked in: [ 51.540562][ T3060] CPU: 1 PID: 3060 Comm: syz.2.45 Tainted: G W syzkaller #0 [ 51.541995][ T3060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.543651][ T3060] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.544903][ T3060] pc : ext2_new_blocks+0x418/0x564 [ 51.545763][ T3060] lr : ext2_new_blocks+0x418/0x564 [ 51.546708][ T3060] sp : ffff80001286b8f0 [ 51.547466][ T3060] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 51.548938][ T3060] x26: ffff0000ce84a400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 51.550424][ T3060] x23: ffff0000c5ec3000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 51.551896][ T3060] x20: ffff0000c5f42600 x19: ffff0000c8ef70d8 x18: ffff80000a3f7ee1 [ 51.553375][ T3060] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.554851][ T3060] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.556285][ T3060] x11: 00000000fffff2cd x10: ffff80000a901be4 x9 : 21e5682e6b463500 [ 51.557733][ T3060] x8 : 21e5682e6b463500 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.559179][ T3060] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.560596][ T3060] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 51.561999][ T3060] Call trace: [ 51.562566][ T3060] ext2_new_blocks+0x418/0x564 [ 51.563427][ T3060] ext2_get_blocks+0x4b4/0x9b0 [ 51.564257][ T3060] ext2_get_block+0x58/0x158 [ 51.565031][ T3060] __block_write_begin_int+0x10c/0x6f0 [ 51.565967][ T3060] block_write_begin+0x5c/0xa4 [ 51.566785][ T3060] ext2_write_begin+0x40/0x6c [ 51.567589][ T3060] generic_perform_write+0x80/0x1e4 [ 51.568491][ T3060] __generic_file_write_iter+0x7c/0xc0 [ 51.569403][ T3060] generic_file_write_iter+0x50/0xd4 [ 51.570382][ T3060] ext2_file_write_iter+0x10/0x1c [ 51.571242][ T3060] vfs_write+0x1ac/0x2c4 [ 51.571976][ T3060] __arm64_sys_pwrite64+0x84/0xc8 [ 51.572862][ T3060] invoke_syscall+0x40/0xdc [ 51.573643][ T3060] el0_svc_common+0xb0/0xe8 [ 51.574428][ T3060] do_el0_svc+0x24/0x80 [ 51.575149][ T3060] el0_svc+0x34/0xd4 [ 51.575827][ T3060] el0t_64_sync_handler+0x84/0xf0 [ 51.576707][ T3060] el0t_64_sync+0x18c/0x190 [ 51.577488][ T3060] ---[ end trace 0000000000000000 ]--- [ 51.578521][ T3060] ------------[ cut here ]------------ [ 51.579365][ T3060] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 51.579408][ T3060] WARNING: CPU: 1 PID: 3060 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.582041][ T3060] Modules linked in: [ 51.582587][ T3060] CPU: 1 PID: 3060 Comm: syz.2.45 Tainted: G W syzkaller #0 [ 51.583840][ T3060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.585321][ T3060] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.586655][ T3060] pc : read_block_bitmap+0xec/0x224 [ 51.587544][ T3060] lr : read_block_bitmap+0xe8/0x224 [ 51.588446][ T3060] sp : ffff80001286ba50 [ 51.589153][ T3060] x29: ffff80001286ba50 x28: ffff0000c4153800 x27: 0000000000000000 [ 51.590531][ T3060] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 51.591911][ T3060] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 51.593302][ T3060] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: 0000000000000000 [ 51.594685][ T3060] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 51.596103][ T3060] x14: 00000000000fe86d x13: 0000000002ccc107 x12: ffff80000e90c000 [ 51.597519][ T3060] x11: 0000000000000004 x10: 00000000ffffffff x9 : 21e5682e6b463500 [ 51.598930][ T3060] x8 : 21e5682e6b463500 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 51.600389][ T3060] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.601762][ T3060] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 51.603152][ T3060] Call trace: [ 51.603725][ T3060] read_block_bitmap+0xec/0x224 [ 51.604565][ T3060] ext2_free_blocks+0x104/0x368 [ 51.605441][ T3060] __ext2_truncate_blocks+0xb8/0x550 [ 51.606371][ T3060] ext2_write_failed+0xa4/0xc0 [ 51.607209][ T3060] ext2_write_begin+0x54/0x6c [ 51.608008][ T3060] generic_perform_write+0x80/0x1e4 [ 51.608930][ T3060] __generic_file_write_iter+0x7c/0xc0 [ 51.609872][ T3060] generic_file_write_iter+0x50/0xd4 [ 51.610799][ T3060] ext2_file_write_iter+0x10/0x1c [ 51.611672][ T3060] vfs_write+0x1ac/0x2c4 [ 51.612446][ T3060] __arm64_sys_pwrite64+0x84/0xc8 [ 51.613324][ T3060] invoke_syscall+0x40/0xdc [ 51.614142][ T3060] el0_svc_common+0xb0/0xe8 [ 51.614933][ T3060] do_el0_svc+0x24/0x80 [ 51.615652][ T3060] el0_svc+0x34/0xd4 [ 51.616312][ T3060] el0t_64_sync_handler+0x84/0xf0 [ 51.617166][ T3060] el0t_64_sync+0x18c/0x190 [ 51.617929][ T3060] ---[ end trace 0000000000000000 ]--- [ 51.618968][ T3060] ------------[ cut here ]------------ [ 51.619814][ T3060] block_group >= groups_count - block_group = 3, groups_count = 1 [ 51.619828][ T3060] WARNING: CPU: 1 PID: 3060 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.622791][ T3060] Modules linked in: [ 51.623449][ T3060] CPU: 1 PID: 3060 Comm: syz.2.45 Tainted: G W syzkaller #0 [ 51.624929][ T3060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.626646][ T3060] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.627979][ T3060] pc : read_block_bitmap+0xec/0x224 [ 51.628850][ T3060] lr : read_block_bitmap+0xe8/0x224 [ 51.629735][ T3060] sp : ffff80001286ba50 [ 51.630437][ T3060] x29: ffff80001286ba50 x28: ffff0000c4153800 x27: 0000000000000000 [ 51.631784][ T3060] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 51.633147][ T3060] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 51.634512][ T3060] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: ffff80000a3f7ee1 [ 51.635860][ T3060] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.637222][ T3060] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.638627][ T3060] x11: 00000000fffff31c x10: ffff80000a901be4 x9 : 21e5682e6b463500 [ 51.640053][ T3060] x8 : 21e5682e6b463500 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.641499][ T3060] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.642858][ T3060] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.644239][ T3060] Call trace: [ 51.644796][ T3060] read_block_bitmap+0xec/0x224 [ 51.645644][ T3060] ext2_free_blocks+0x104/0x368 [ 51.646482][ T3060] __ext2_truncate_blocks+0xb8/0x550 [ 51.647403][ T3060] ext2_write_failed+0xa4/0xc0 [ 51.648233][ T3060] ext2_write_begin+0x54/0x6c [ 51.649036][ T3060] generic_perform_write+0x80/0x1e4 [ 51.649937][ T3060] __generic_file_write_iter+0x7c/0xc0 [ 51.650884][ T3060] generic_file_write_iter+0x50/0xd4 [ 51.651799][ T3060] ext2_file_write_iter+0x10/0x1c [ 51.652664][ T3060] vfs_write+0x1ac/0x2c4 [ 51.653395][ T3060] __arm64_sys_pwrite64+0x84/0xc8 [ 51.654261][ T3060] invoke_syscall+0x40/0xdc [ 51.655020][ T3060] el0_svc_common+0xb0/0xe8 [ 51.655783][ T3060] do_el0_svc+0x24/0x80 [ 51.656482][ T3060] el0_svc+0x34/0xd4 [ 51.657174][ T3060] el0t_64_sync_handler+0x84/0xf0 [ 51.658037][ T3060] el0t_64_sync+0x18c/0x190 [ 51.658818][ T3060] ---[ end trace 0000000000000000 ]--- [ 51.659851][ T3060] ------------[ cut here ]------------ [ 51.660648][ T3060] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.660662][ T3060] WARNING: CPU: 1 PID: 3060 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.663246][ T3060] Modules linked in: [ 51.663845][ T3060] CPU: 1 PID: 3060 Comm: syz.2.45 Tainted: G W syzkaller #0 [ 51.665115][ T3060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.666795][ T3060] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.668194][ T3060] pc : read_block_bitmap+0xec/0x224 [ 51.669109][ T3060] lr : read_block_bitmap+0xe8/0x224 [ 51.669999][ T3060] sp : ffff80001286ba50 [ 51.670705][ T3060] x29: ffff80001286ba50 x28: ffff0000c4153800 x27: 0000000000000000 [ 51.672090][ T3060] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 51.673518][ T3060] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 51.674919][ T3060] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: ffff80000a3f7ee1 [ 51.676329][ T3060] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.677708][ T3060] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.679077][ T3060] x11: 00000000fffff343 x10: ffff80000a901be4 x9 : 21e5682e6b463500 [ 51.680476][ T3060] x8 : 21e5682e6b463500 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.681868][ T3060] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.683266][ T3060] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.684761][ T3060] Call trace: [ 51.685350][ T3060] read_block_bitmap+0xec/0x224 [ 51.686200][ T3060] ext2_free_blocks+0x104/0x368 [ 51.687054][ T3060] __ext2_truncate_blocks+0x154/0x550 [ 51.687956][ T3060] ext2_write_failed+0xa4/0xc0 [ 51.688763][ T3060] ext2_write_begin+0x54/0x6c [ 51.689552][ T3060] generic_perform_write+0x80/0x1e4 [ 51.690460][ T3060] __generic_file_write_iter+0x7c/0xc0 [ 51.691422][ T3060] generic_file_write_iter+0x50/0xd4 [ 51.692329][ T3060] ext2_file_write_iter+0x10/0x1c [ 51.693187][ T3060] vfs_write+0x1ac/0x2c4 [ 51.693897][ T3060] __arm64_sys_pwrite64+0x84/0xc8 [ 51.694760][ T3060] invoke_syscall+0x40/0xdc [ 51.695542][ T3060] el0_svc_common+0xb0/0xe8 [ 51.696320][ T3060] do_el0_svc+0x24/0x80 [ 51.697017][ T3060] el0_svc+0x34/0xd4 [ 51.697682][ T3060] el0t_64_sync_handler+0x84/0xf0 [ 51.698552][ T3060] el0t_64_sync+0x18c/0x190 [ 51.699334][ T3060] ---[ end trace 0000000000000000 ]--- [ 51.704417][ T3062] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 51.705531][ T3062] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 51.706958][ T3062] ext2 filesystem being mounted at /29/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.710865][ T3062] ------------[ cut here ]------------ [ 51.711795][ T3062] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.711809][ T3062] WARNING: CPU: 1 PID: 3062 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 51.714438][ T3062] Modules linked in: [ 51.715086][ T3062] CPU: 1 PID: 3062 Comm: syz.2.46 Tainted: G W syzkaller #0 [ 51.716576][ T3062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.718477][ T3062] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.719936][ T3062] pc : ext2_new_blocks+0x418/0x564 [ 51.720903][ T3062] lr : ext2_new_blocks+0x418/0x564 [ 51.721782][ T3062] sp : ffff8000121f38f0 [ 51.722520][ T3062] x29: ffff8000121f3940 x28: 0000000000010000 x27: 0000000000000008 [ 51.723989][ T3062] x26: ffff0000d4228400 x25: 0000000000010000 x24: ffff8000121f39f4 [ 51.725477][ T3062] x23: ffff0000c5ec6000 x22: 0000000000000000 x21: ffff8000121f39f8 [ 51.726916][ T3062] x20: ffff0000c9451e00 x19: ffff0000c8ef6518 x18: ffff80000a3f7ee1 [ 51.728365][ T3062] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.729847][ T3062] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.731261][ T3062] x11: 00000000fffff36d x10: ffff80000a901be4 x9 : bd97e356788ce800 [ 51.732677][ T3062] x8 : bd97e356788ce800 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.734090][ T3062] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.735559][ T3062] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 51.737054][ T3062] Call trace: [ 51.737637][ T3062] ext2_new_blocks+0x418/0x564 [ 51.738510][ T3062] ext2_get_blocks+0x4b4/0x9b0 [ 51.739360][ T3062] ext2_get_block+0x58/0x158 [ 51.740214][ T3062] __block_write_begin_int+0x10c/0x6f0 [ 51.741214][ T3062] block_write_begin+0x5c/0xa4 [ 51.742042][ T3062] ext2_write_begin+0x40/0x6c [ 51.742866][ T3062] generic_perform_write+0x80/0x1e4 [ 51.743766][ T3062] __generic_file_write_iter+0x7c/0xc0 [ 51.744722][ T3062] generic_file_write_iter+0x50/0xd4 [ 51.745687][ T3062] ext2_file_write_iter+0x10/0x1c [ 51.746585][ T3062] vfs_write+0x1ac/0x2c4 [ 51.747343][ T3062] __arm64_sys_pwrite64+0x84/0xc8 [ 51.748247][ T3062] invoke_syscall+0x40/0xdc [ 51.749055][ T3062] el0_svc_common+0xb0/0xe8 [ 51.749840][ T3062] do_el0_svc+0x24/0x80 [ 51.750566][ T3062] el0_svc+0x34/0xd4 [ 51.751259][ T3062] el0t_64_sync_handler+0x84/0xf0 [ 51.752121][ T3062] el0t_64_sync+0x18c/0x190 [ 51.752939][ T3062] ---[ end trace 0000000000000000 ]--- [ 51.754117][ T3062] ------------[ cut here ]------------ [ 51.755054][ T3062] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 51.755065][ T3062] WARNING: CPU: 1 PID: 3062 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.758167][ T3062] Modules linked in: [ 51.758864][ T3062] CPU: 1 PID: 3062 Comm: syz.2.46 Tainted: G W syzkaller #0 [ 51.760447][ T3062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.762293][ T3062] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.763699][ T3062] pc : read_block_bitmap+0xec/0x224 [ 51.764610][ T3062] lr : read_block_bitmap+0xe8/0x224 [ 51.765535][ T3062] sp : ffff8000121f3a50 [ 51.766246][ T3062] x29: ffff8000121f3a50 x28: ffff0000c4152800 x27: 0000000000000000 [ 51.767646][ T3062] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 51.769094][ T3062] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 51.770543][ T3062] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 51.771979][ T3062] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.773417][ T3062] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.774842][ T3062] x11: 00000000fffff395 x10: ffff80000a901be4 x9 : bd97e356788ce800 [ 51.776283][ T3062] x8 : bd97e356788ce800 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.777693][ T3062] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.779117][ T3062] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.780505][ T3062] Call trace: [ 51.781071][ T3062] read_block_bitmap+0xec/0x224 [ 51.781969][ T3062] ext2_free_blocks+0x104/0x368 [ 51.782834][ T3062] __ext2_truncate_blocks+0xb8/0x550 [ 51.783778][ T3062] ext2_write_failed+0xa4/0xc0 [ 51.784617][ T3062] ext2_write_begin+0x54/0x6c [ 51.785441][ T3062] generic_perform_write+0x80/0x1e4 [ 51.786383][ T3062] __generic_file_write_iter+0x7c/0xc0 [ 51.787363][ T3062] generic_file_write_iter+0x50/0xd4 [ 51.788319][ T3062] ext2_file_write_iter+0x10/0x1c [ 51.789219][ T3062] vfs_write+0x1ac/0x2c4 [ 51.789969][ T3062] __arm64_sys_pwrite64+0x84/0xc8 [ 51.790885][ T3062] invoke_syscall+0x40/0xdc [ 51.791674][ T3062] el0_svc_common+0xb0/0xe8 [ 51.792467][ T3062] do_el0_svc+0x24/0x80 [ 51.793201][ T3062] el0_svc+0x34/0xd4 [ 51.793920][ T3062] el0t_64_sync_handler+0x84/0xf0 [ 51.794816][ T3062] el0t_64_sync+0x18c/0x190 [ 51.795610][ T3062] ---[ end trace 0000000000000000 ]--- [ 51.796669][ T3062] ------------[ cut here ]------------ [ 51.797539][ T3062] block_group >= groups_count - block_group = 3, groups_count = 1 [ 51.797550][ T3062] WARNING: CPU: 1 PID: 3062 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.800602][ T3062] Modules linked in: [ 51.801254][ T3062] CPU: 1 PID: 3062 Comm: syz.2.46 Tainted: G W syzkaller #0 [ 51.802778][ T3062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.804506][ T3062] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.805830][ T3062] pc : read_block_bitmap+0xec/0x224 [ 51.806703][ T3062] lr : read_block_bitmap+0xe8/0x224 [ 51.807602][ T3062] sp : ffff8000121f3a50 [ 51.808356][ T3062] x29: ffff8000121f3a50 x28: ffff0000c4152800 x27: 0000000000000000 [ 51.809813][ T3062] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 51.811221][ T3062] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 51.812614][ T3062] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 51.814055][ T3062] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.815484][ T3062] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.816883][ T3062] x11: 00000000fffff3bc x10: ffff80000a901be4 x9 : bd97e356788ce800 [ 51.818357][ T3062] x8 : bd97e356788ce800 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.819803][ T3062] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.821261][ T3062] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.822736][ T3062] Call trace: [ 51.823312][ T3062] read_block_bitmap+0xec/0x224 [ 51.824185][ T3062] ext2_free_blocks+0x104/0x368 [ 51.825064][ T3062] __ext2_truncate_blocks+0xb8/0x550 [ 51.825989][ T3062] ext2_write_failed+0xa4/0xc0 [ 51.826885][ T3062] ext2_write_begin+0x54/0x6c [ 51.827709][ T3062] generic_perform_write+0x80/0x1e4 [ 51.828615][ T3062] __generic_file_write_iter+0x7c/0xc0 [ 51.829577][ T3062] generic_file_write_iter+0x50/0xd4 [ 51.830531][ T3062] ext2_file_write_iter+0x10/0x1c [ 51.831455][ T3062] vfs_write+0x1ac/0x2c4 [ 51.832238][ T3062] __arm64_sys_pwrite64+0x84/0xc8 [ 51.833131][ T3062] invoke_syscall+0x40/0xdc [ 51.833931][ T3062] el0_svc_common+0xb0/0xe8 [ 51.834742][ T3062] do_el0_svc+0x24/0x80 [ 51.835493][ T3062] el0_svc+0x34/0xd4 [ 51.836193][ T3062] el0t_64_sync_handler+0x84/0xf0 [ 51.837072][ T3062] el0t_64_sync+0x18c/0x190 [ 51.837880][ T3062] ---[ end trace 0000000000000000 ]--- [ 51.838876][ T3062] ------------[ cut here ]------------ [ 51.839711][ T3062] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.839723][ T3062] WARNING: CPU: 1 PID: 3062 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.842346][ T3062] Modules linked in: [ 51.842925][ T3062] CPU: 1 PID: 3062 Comm: syz.2.46 Tainted: G W syzkaller #0 [ 51.844272][ T3062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.845845][ T3062] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.847218][ T3062] pc : read_block_bitmap+0xec/0x224 [ 51.848132][ T3062] lr : read_block_bitmap+0xe8/0x224 [ 51.849051][ T3062] sp : ffff8000121f3a50 [ 51.849779][ T3062] x29: ffff8000121f3a50 x28: ffff0000c4152800 x27: 0000000000000000 [ 51.851230][ T3062] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 51.852672][ T3062] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 51.854118][ T3062] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 51.855573][ T3062] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.856992][ T3062] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.858443][ T3062] x11: 00000000fffff3e3 x10: ffff80000a901be4 x9 : bd97e356788ce800 [ 51.859835][ T3062] x8 : bd97e356788ce800 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.861266][ T3062] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.862655][ T3062] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.864054][ T3062] Call trace: [ 51.864621][ T3062] read_block_bitmap+0xec/0x224 [ 51.865469][ T3062] ext2_free_blocks+0x104/0x368 [ 51.866311][ T3062] __ext2_truncate_blocks+0x154/0x550 [ 51.867241][ T3062] ext2_write_failed+0xa4/0xc0 [ 51.868072][ T3062] ext2_write_begin+0x54/0x6c [ 51.868896][ T3062] generic_perform_write+0x80/0x1e4 [ 51.869853][ T3062] __generic_file_write_iter+0x7c/0xc0 [ 51.870816][ T3062] generic_file_write_iter+0x50/0xd4 [ 51.871756][ T3062] ext2_file_write_iter+0x10/0x1c [ 51.872640][ T3062] vfs_write+0x1ac/0x2c4 [ 51.873376][ T3062] __arm64_sys_pwrite64+0x84/0xc8 [ 51.874247][ T3062] invoke_syscall+0x40/0xdc [ 51.875085][ T3062] el0_svc_common+0xb0/0xe8 [ 51.875881][ T3062] do_el0_svc+0x24/0x80 [ 51.876601][ T3062] el0_svc+0x34/0xd4 [ 51.877276][ T3062] el0t_64_sync_handler+0x84/0xf0 [ 51.878192][ T3062] el0t_64_sync+0x18c/0x190 [ 51.879015][ T3062] ---[ end trace 0000000000000000 ]--- [ 51.885461][ T3064] set_capacity_and_notify: 18 callbacks suppressed [ 51.885463][ T3064] loop2: detected capacity change from 0 to 512 [ 51.887917][ T3064] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 51.889069][ T3064] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 51.890268][ T3064] ext2 filesystem being mounted at /30/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.894147][ T3064] ------------[ cut here ]------------ [ 51.895171][ T3064] block_group >= groups_count - block_group = 7, groups_count = 1 [ 51.895198][ T3064] WARNING: CPU: 1 PID: 3064 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 51.898087][ T3064] Modules linked in: [ 51.898768][ T3064] CPU: 1 PID: 3064 Comm: syz.2.47 Tainted: G W syzkaller #0 [ 51.900312][ T3064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.902119][ T3064] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.903538][ T3064] pc : ext2_new_blocks+0x418/0x564 [ 51.904444][ T3064] lr : ext2_new_blocks+0x418/0x564 [ 51.905331][ T3064] sp : ffff80001285b8f0 [ 51.906076][ T3064] x29: ffff80001285b940 x28: 0000000000010000 x27: 0000000000000008 [ 51.907492][ T3064] x26: ffff0000cd58f400 x25: 0000000000010000 x24: ffff80001285b9f4 [ 51.908945][ T3064] x23: ffff0000c5ec5000 x22: 0000000000000000 x21: ffff80001285b9f8 [ 51.910359][ T3064] x20: ffff0000c5e89e80 x19: ffff0000c8ef5958 x18: 0000000000003000 [ 51.911789][ T3064] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000355 [ 51.913224][ T3064] x14: 0000000000100000 x13: 00000000010fefa2 x12: ffff80000e90c000 [ 51.914658][ T3064] x11: 0000000000000003 x10: 00000000ffffffff x9 : 6d3bff9eeb85ca00 [ 51.916147][ T3064] x8 : 6d3bff9eeb85ca00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 51.917519][ T3064] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.918914][ T3064] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 51.920343][ T3064] Call trace: [ 51.920911][ T3064] ext2_new_blocks+0x418/0x564 [ 51.921779][ T3064] ext2_get_blocks+0x4b4/0x9b0 [ 51.922649][ T3064] ext2_get_block+0x58/0x158 [ 51.923431][ T3064] __block_write_begin_int+0x10c/0x6f0 [ 51.924389][ T3064] block_write_begin+0x5c/0xa4 [ 51.925281][ T3064] ext2_write_begin+0x40/0x6c [ 51.926120][ T3064] generic_perform_write+0x80/0x1e4 [ 51.927027][ T3064] __generic_file_write_iter+0x7c/0xc0 [ 51.927996][ T3064] generic_file_write_iter+0x50/0xd4 [ 51.928942][ T3064] ext2_file_write_iter+0x10/0x1c [ 51.929852][ T3064] vfs_write+0x1ac/0x2c4 [ 51.930609][ T3064] __arm64_sys_pwrite64+0x84/0xc8 [ 51.931500][ T3064] invoke_syscall+0x40/0xdc [ 51.932290][ T3064] el0_svc_common+0xb0/0xe8 [ 51.933102][ T3064] do_el0_svc+0x24/0x80 [ 51.933848][ T3064] el0_svc+0x34/0xd4 [ 51.934564][ T3064] el0t_64_sync_handler+0x84/0xf0 [ 51.935428][ T3064] el0t_64_sync+0x18c/0x190 [ 51.936245][ T3064] ---[ end trace 0000000000000000 ]--- [ 51.937558][ T3064] ------------[ cut here ]------------ [ 51.938447][ T3064] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 51.938460][ T3064] WARNING: CPU: 1 PID: 3064 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.941189][ T3064] Modules linked in: [ 51.941818][ T3064] CPU: 1 PID: 3064 Comm: syz.2.47 Tainted: G W syzkaller #0 [ 51.943158][ T3064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.944786][ T3064] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.946151][ T3064] pc : read_block_bitmap+0xec/0x224 [ 51.947056][ T3064] lr : read_block_bitmap+0xe8/0x224 [ 51.947977][ T3064] sp : ffff80001285ba50 [ 51.948703][ T3064] x29: ffff80001285ba50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 51.950145][ T3064] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 51.951542][ T3064] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 51.952919][ T3064] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 51.954311][ T3064] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.955719][ T3064] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.957123][ T3064] x11: 00000000fffff437 x10: ffff80000a901be4 x9 : 6d3bff9eeb85ca00 [ 51.958491][ T3064] x8 : 6d3bff9eeb85ca00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 51.959872][ T3064] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 51.961261][ T3064] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 51.962770][ T3064] Call trace: [ 51.963361][ T3064] read_block_bitmap+0xec/0x224 [ 51.964265][ T3064] ext2_free_blocks+0x104/0x368 [ 51.965138][ T3064] __ext2_truncate_blocks+0xb8/0x550 [ 51.966065][ T3064] ext2_write_failed+0xa4/0xc0 [ 51.966873][ T3064] ext2_write_begin+0x54/0x6c [ 51.967670][ T3064] generic_perform_write+0x80/0x1e4 [ 51.968547][ T3064] __generic_file_write_iter+0x7c/0xc0 [ 51.969472][ T3064] generic_file_write_iter+0x50/0xd4 [ 51.970384][ T3064] ext2_file_write_iter+0x10/0x1c [ 51.971234][ T3064] vfs_write+0x1ac/0x2c4 [ 51.971927][ T3064] __arm64_sys_pwrite64+0x84/0xc8 [ 51.972752][ T3064] invoke_syscall+0x40/0xdc [ 51.973498][ T3064] el0_svc_common+0xb0/0xe8 [ 51.974252][ T3064] do_el0_svc+0x24/0x80 [ 51.974943][ T3064] el0_svc+0x34/0xd4 [ 51.975662][ T3064] el0t_64_sync_handler+0x84/0xf0 [ 51.976524][ T3064] el0t_64_sync+0x18c/0x190 [ 51.977302][ T3064] ---[ end trace 0000000000000000 ]--- [ 51.978271][ T3064] ------------[ cut here ]------------ [ 51.979093][ T3064] block_group >= groups_count - block_group = 3, groups_count = 1 [ 51.979106][ T3064] WARNING: CPU: 1 PID: 3064 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 51.981634][ T3064] Modules linked in: [ 51.982221][ T3064] CPU: 1 PID: 3064 Comm: syz.2.47 Tainted: G W syzkaller #0 [ 51.983510][ T3064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.985014][ T3064] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.986310][ T3064] pc : read_block_bitmap+0xec/0x224 [ 51.987206][ T3064] lr : read_block_bitmap+0xe8/0x224 [ 51.988111][ T3064] sp : ffff80001285ba50 [ 51.988839][ T3064] x29: ffff80001285ba50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 51.990221][ T3064] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 51.991606][ T3064] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 51.993012][ T3064] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 51.994498][ T3064] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 51.995956][ T3064] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 51.997446][ T3064] x11: 00000000fffff45e x10: ffff80000a901be4 x9 : 6d3bff9eeb85ca00 [ 51.998904][ T3064] x8 : 6d3bff9eeb85ca00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.000308][ T3064] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.001752][ T3064] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.003183][ T3064] Call trace: [ 52.003753][ T3064] read_block_bitmap+0xec/0x224 [ 52.004640][ T3064] ext2_free_blocks+0x104/0x368 [ 52.005511][ T3064] __ext2_truncate_blocks+0xb8/0x550 [ 52.006473][ T3064] ext2_write_failed+0xa4/0xc0 [ 52.007332][ T3064] ext2_write_begin+0x54/0x6c [ 52.008167][ T3064] generic_perform_write+0x80/0x1e4 [ 52.009110][ T3064] __generic_file_write_iter+0x7c/0xc0 [ 52.010092][ T3064] generic_file_write_iter+0x50/0xd4 [ 52.011034][ T3064] ext2_file_write_iter+0x10/0x1c [ 52.011940][ T3064] vfs_write+0x1ac/0x2c4 [ 52.012694][ T3064] __arm64_sys_pwrite64+0x84/0xc8 [ 52.013585][ T3064] invoke_syscall+0x40/0xdc [ 52.014379][ T3064] el0_svc_common+0xb0/0xe8 [ 52.015171][ T3064] do_el0_svc+0x24/0x80 [ 52.015895][ T3064] el0_svc+0x34/0xd4 [ 52.016578][ T3064] el0t_64_sync_handler+0x84/0xf0 [ 52.017467][ T3064] el0t_64_sync+0x18c/0x190 [ 52.018255][ T3064] ---[ end trace 0000000000000000 ]--- [ 52.019346][ T3064] ------------[ cut here ]------------ [ 52.020204][ T3064] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.020216][ T3064] WARNING: CPU: 1 PID: 3064 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.022825][ T3064] Modules linked in: [ 52.023433][ T3064] CPU: 1 PID: 3064 Comm: syz.2.47 Tainted: G W syzkaller #0 [ 52.024768][ T3064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.026484][ T3064] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.027826][ T3064] pc : read_block_bitmap+0xec/0x224 [ 52.028801][ T3064] lr : read_block_bitmap+0xe8/0x224 [ 52.029715][ T3064] sp : ffff80001285ba50 [ 52.030449][ T3064] x29: ffff80001285ba50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 52.031873][ T3064] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 52.033312][ T3064] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 52.034756][ T3064] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 52.036207][ T3064] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.037597][ T3064] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.039033][ T3064] x11: 00000000fffff485 x10: ffff80000a901be4 x9 : 6d3bff9eeb85ca00 [ 52.040470][ T3064] x8 : 6d3bff9eeb85ca00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.041905][ T3064] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.043329][ T3064] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.044778][ T3064] Call trace: [ 52.045343][ T3064] read_block_bitmap+0xec/0x224 [ 52.046195][ T3064] ext2_free_blocks+0x104/0x368 [ 52.047083][ T3064] __ext2_truncate_blocks+0x154/0x550 [ 52.048047][ T3064] ext2_write_failed+0xa4/0xc0 [ 52.048879][ T3064] ext2_write_begin+0x54/0x6c [ 52.049711][ T3064] generic_perform_write+0x80/0x1e4 [ 52.050637][ T3064] __generic_file_write_iter+0x7c/0xc0 [ 52.051621][ T3064] generic_file_write_iter+0x50/0xd4 [ 52.052620][ T3064] ext2_file_write_iter+0x10/0x1c [ 52.053540][ T3064] vfs_write+0x1ac/0x2c4 [ 52.054314][ T3064] __arm64_sys_pwrite64+0x84/0xc8 [ 52.055211][ T3064] invoke_syscall+0x40/0xdc [ 52.056015][ T3064] el0_svc_common+0xb0/0xe8 [ 52.056797][ T3064] do_el0_svc+0x24/0x80 [ 52.057526][ T3064] el0_svc+0x34/0xd4 [ 52.058202][ T3064] el0t_64_sync_handler+0x84/0xf0 [ 52.059121][ T3064] el0t_64_sync+0x18c/0x190 [ 52.060027][ T3064] ---[ end trace 0000000000000000 ]--- [ 52.073282][ T3066] loop2: detected capacity change from 0 to 512 [ 52.074409][ T3066] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 52.075612][ T3066] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 52.076870][ T3066] ext2 filesystem being mounted at /31/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.082774][ T3066] ------------[ cut here ]------------ [ 52.083680][ T3066] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.083693][ T3066] WARNING: CPU: 1 PID: 3066 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 52.086267][ T3066] Modules linked in: [ 52.086931][ T3066] CPU: 1 PID: 3066 Comm: syz.2.48 Tainted: G W syzkaller #0 [ 52.088476][ T3066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.090229][ T3066] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.091641][ T3066] pc : ext2_new_blocks+0x418/0x564 [ 52.092549][ T3066] lr : ext2_new_blocks+0x418/0x564 [ 52.093447][ T3066] sp : ffff8000128738f0 [ 52.094144][ T3066] x29: ffff800012873940 x28: 0000000000010000 x27: 0000000000000008 [ 52.095548][ T3066] x26: ffff0000cd557400 x25: 0000000000010000 x24: ffff8000128739f4 [ 52.096952][ T3066] x23: ffff0000c5ec1000 x22: 0000000000000000 x21: ffff8000128739f8 [ 52.098335][ T3066] x20: ffff0000c5e89400 x19: ffff0000c8ef76b8 x18: ffff80000a3f7ee1 [ 52.099772][ T3066] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.101174][ T3066] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.102537][ T3066] x11: 00000000fffff4b0 x10: ffff80000a901be4 x9 : 4f858b7cd6934300 [ 52.103923][ T3066] x8 : 4f858b7cd6934300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.105302][ T3066] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.106693][ T3066] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 52.108077][ T3066] Call trace: [ 52.108637][ T3066] ext2_new_blocks+0x418/0x564 [ 52.109468][ T3066] ext2_get_blocks+0x4b4/0x9b0 [ 52.110308][ T3066] ext2_get_block+0x58/0x158 [ 52.111123][ T3066] __block_write_begin_int+0x10c/0x6f0 [ 52.112071][ T3066] block_write_begin+0x5c/0xa4 [ 52.112941][ T3066] ext2_write_begin+0x40/0x6c [ 52.113763][ T3066] generic_perform_write+0x80/0x1e4 [ 52.114669][ T3066] __generic_file_write_iter+0x7c/0xc0 [ 52.115633][ T3066] generic_file_write_iter+0x50/0xd4 [ 52.116547][ T3066] ext2_file_write_iter+0x10/0x1c [ 52.117420][ T3066] vfs_write+0x1ac/0x2c4 [ 52.118151][ T3066] __arm64_sys_pwrite64+0x84/0xc8 [ 52.119018][ T3066] invoke_syscall+0x40/0xdc [ 52.119798][ T3066] el0_svc_common+0xb0/0xe8 [ 52.120570][ T3066] do_el0_svc+0x24/0x80 [ 52.121280][ T3066] el0_svc+0x34/0xd4 [ 52.121939][ T3066] el0t_64_sync_handler+0x84/0xf0 [ 52.122820][ T3066] el0t_64_sync+0x18c/0x190 [ 52.123628][ T3066] ---[ end trace 0000000000000000 ]--- [ 52.124904][ T3066] ------------[ cut here ]------------ [ 52.125886][ T3066] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 52.125917][ T3066] WARNING: CPU: 1 PID: 3066 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.128764][ T3066] Modules linked in: [ 52.129412][ T3066] CPU: 1 PID: 3066 Comm: syz.2.48 Tainted: G W syzkaller #0 [ 52.130744][ T3066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.132360][ T3066] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.133587][ T3066] pc : read_block_bitmap+0xec/0x224 [ 52.134420][ T3066] lr : read_block_bitmap+0xe8/0x224 [ 52.135222][ T3066] sp : ffff800012873a50 [ 52.135931][ T3066] x29: ffff800012873a50 x28: ffff0000c4153800 x27: 0000000000000000 [ 52.137406][ T3066] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 52.138829][ T3066] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 52.140288][ T3066] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: 0000000000027c00 [ 52.141713][ T3066] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000010 [ 52.143126][ T3066] x14: 00000000000c09c7 x13: 0000000000000001 x12: ffff80000e90c000 [ 52.144531][ T3066] x11: 0000000000000004 x10: 00000000ffffffff x9 : 4f858b7cd6934300 [ 52.145943][ T3066] x8 : 4f858b7cd6934300 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 52.147364][ T3066] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.148761][ T3066] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 52.150160][ T3066] Call trace: [ 52.150719][ T3066] read_block_bitmap+0xec/0x224 [ 52.151583][ T3066] ext2_free_blocks+0x104/0x368 [ 52.152405][ T3066] __ext2_truncate_blocks+0xb8/0x550 [ 52.153341][ T3066] ext2_write_failed+0xa4/0xc0 [ 52.154148][ T3066] ext2_write_begin+0x54/0x6c [ 52.154980][ T3066] generic_perform_write+0x80/0x1e4 [ 52.155882][ T3066] __generic_file_write_iter+0x7c/0xc0 [ 52.156844][ T3066] generic_file_write_iter+0x50/0xd4 [ 52.157802][ T3066] ext2_file_write_iter+0x10/0x1c [ 52.158705][ T3066] vfs_write+0x1ac/0x2c4 [ 52.159474][ T3066] __arm64_sys_pwrite64+0x84/0xc8 [ 52.160384][ T3066] invoke_syscall+0x40/0xdc [ 52.161182][ T3066] el0_svc_common+0xb0/0xe8 [ 52.161951][ T3066] do_el0_svc+0x24/0x80 [ 52.162667][ T3066] el0_svc+0x34/0xd4 [ 52.163354][ T3066] el0t_64_sync_handler+0x84/0xf0 [ 52.164210][ T3066] el0t_64_sync+0x18c/0x190 [ 52.164968][ T3066] ---[ end trace 0000000000000000 ]--- [ 52.165981][ T3066] ------------[ cut here ]------------ [ 52.166853][ T3066] block_group >= groups_count - block_group = 3, groups_count = 1 [ 52.166866][ T3066] WARNING: CPU: 1 PID: 3066 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.169499][ T3066] Modules linked in: [ 52.170119][ T3066] CPU: 1 PID: 3066 Comm: syz.2.48 Tainted: G W syzkaller #0 [ 52.171440][ T3066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.172988][ T3066] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.174141][ T3066] pc : read_block_bitmap+0xec/0x224 [ 52.174956][ T3066] lr : read_block_bitmap+0xe8/0x224 [ 52.175796][ T3066] sp : ffff800012873a50 [ 52.176502][ T3066] x29: ffff800012873a50 x28: ffff0000c4153800 x27: 0000000000000000 [ 52.177854][ T3066] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 52.179216][ T3066] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 52.180591][ T3066] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 52.181937][ T3066] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.183319][ T3066] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.184727][ T3066] x11: 00000000fffff4ff x10: ffff80000a901be4 x9 : 4f858b7cd6934300 [ 52.186090][ T3066] x8 : 4f858b7cd6934300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.187447][ T3066] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.188837][ T3066] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.190222][ T3066] Call trace: [ 52.190788][ T3066] read_block_bitmap+0xec/0x224 [ 52.191617][ T3066] ext2_free_blocks+0x104/0x368 [ 52.192444][ T3066] __ext2_truncate_blocks+0xb8/0x550 [ 52.193350][ T3066] ext2_write_failed+0xa4/0xc0 [ 52.194174][ T3066] ext2_write_begin+0x54/0x6c [ 52.195010][ T3066] generic_perform_write+0x80/0x1e4 [ 52.195913][ T3066] __generic_file_write_iter+0x7c/0xc0 [ 52.196857][ T3066] generic_file_write_iter+0x50/0xd4 [ 52.197792][ T3066] ext2_file_write_iter+0x10/0x1c [ 52.198670][ T3066] vfs_write+0x1ac/0x2c4 [ 52.199410][ T3066] __arm64_sys_pwrite64+0x84/0xc8 [ 52.200282][ T3066] invoke_syscall+0x40/0xdc [ 52.201058][ T3066] el0_svc_common+0xb0/0xe8 [ 52.201836][ T3066] do_el0_svc+0x24/0x80 [ 52.202562][ T3066] el0_svc+0x34/0xd4 [ 52.203241][ T3066] el0t_64_sync_handler+0x84/0xf0 [ 52.204118][ T3066] el0t_64_sync+0x18c/0x190 [ 52.204910][ T3066] ---[ end trace 0000000000000000 ]--- [ 52.205901][ T3066] ------------[ cut here ]------------ [ 52.206761][ T3066] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.206772][ T3066] WARNING: CPU: 1 PID: 3066 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.209483][ T3066] Modules linked in: [ 52.210089][ T3066] CPU: 1 PID: 3066 Comm: syz.2.48 Tainted: G W syzkaller #0 [ 52.211459][ T3066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.213074][ T3066] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.214278][ T3066] pc : read_block_bitmap+0xec/0x224 [ 52.215064][ T3066] lr : read_block_bitmap+0xe8/0x224 [ 52.215889][ T3066] sp : ffff800012873a50 [ 52.216619][ T3066] x29: ffff800012873a50 x28: ffff0000c4153800 x27: 0000000000000000 [ 52.218060][ T3066] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 52.219503][ T3066] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 52.220952][ T3066] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 52.222417][ T3066] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.223871][ T3066] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.225261][ T3066] x11: 00000000fffff526 x10: ffff80000a901be4 x9 : 4f858b7cd6934300 [ 52.226652][ T3066] x8 : 4f858b7cd6934300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.228064][ T3066] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.229473][ T3066] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.230884][ T3066] Call trace: [ 52.231461][ T3066] read_block_bitmap+0xec/0x224 [ 52.232328][ T3066] ext2_free_blocks+0x104/0x368 [ 52.233154][ T3066] __ext2_truncate_blocks+0x154/0x550 [ 52.234084][ T3066] ext2_write_failed+0xa4/0xc0 [ 52.234915][ T3066] ext2_write_begin+0x54/0x6c [ 52.235693][ T3066] generic_perform_write+0x80/0x1e4 [ 52.236575][ T3066] __generic_file_write_iter+0x7c/0xc0 [ 52.237561][ T3066] generic_file_write_iter+0x50/0xd4 [ 52.238467][ T3066] ext2_file_write_iter+0x10/0x1c [ 52.239314][ T3066] vfs_write+0x1ac/0x2c4 [ 52.240116][ T3066] __arm64_sys_pwrite64+0x84/0xc8 [ 52.240990][ T3066] invoke_syscall+0x40/0xdc [ 52.241782][ T3066] el0_svc_common+0xb0/0xe8 [ 52.242587][ T3066] do_el0_svc+0x24/0x80 [ 52.243350][ T3066] el0_svc+0x34/0xd4 [ 52.244070][ T3066] el0t_64_sync_handler+0x84/0xf0 [ 52.244965][ T3066] el0t_64_sync+0x18c/0x190 [ 52.245758][ T3066] ---[ end trace 0000000000000000 ]--- [ 52.256655][ T3068] loop2: detected capacity change from 0 to 512 [ 52.259595][ T3068] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 52.260823][ T3068] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 52.262123][ T3068] ext2 filesystem being mounted at /32/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.270203][ T3068] ------------[ cut here ]------------ [ 52.271176][ T3068] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.271190][ T3068] WARNING: CPU: 0 PID: 3068 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 52.273990][ T3068] Modules linked in: [ 52.274619][ T3068] CPU: 0 PID: 3068 Comm: syz.2.49 Tainted: G W syzkaller #0 [ 52.276174][ T3068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.278148][ T3068] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.279584][ T3068] pc : ext2_new_blocks+0x418/0x564 [ 52.280528][ T3068] lr : ext2_new_blocks+0x418/0x564 [ 52.281440][ T3068] sp : ffff8000128638f0 [ 52.282167][ T3068] x29: ffff800012863940 x28: 0000000000010000 x27: 0000000000000008 [ 52.283578][ T3068] x26: ffff0000cd59a400 x25: 0000000000010000 x24: ffff8000128639f4 [ 52.285029][ T3068] x23: ffff0000c9dd8000 x22: 0000000000000000 x21: ffff8000128639f8 [ 52.286466][ T3068] x20: ffff0000c4843e00 x19: ffff0000c8e7f0d8 x18: ffff80000a3f7ee1 [ 52.287942][ T3068] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.289417][ T3068] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.290864][ T3068] x11: 00000000fffff551 x10: ffff80000a901be4 x9 : f2f6497126ce2700 [ 52.292317][ T3068] x8 : f2f6497126ce2700 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.293769][ T3068] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.295180][ T3068] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 52.296631][ T3068] Call trace: [ 52.297220][ T3068] ext2_new_blocks+0x418/0x564 [ 52.298057][ T3068] ext2_get_blocks+0x4b4/0x9b0 [ 52.298935][ T3068] ext2_get_block+0x58/0x158 [ 52.299768][ T3068] __block_write_begin_int+0x10c/0x6f0 [ 52.300805][ T3068] block_write_begin+0x5c/0xa4 [ 52.301704][ T3068] ext2_write_begin+0x40/0x6c [ 52.302517][ T3068] generic_perform_write+0x80/0x1e4 [ 52.303449][ T3068] __generic_file_write_iter+0x7c/0xc0 [ 52.304455][ T3068] generic_file_write_iter+0x50/0xd4 [ 52.305430][ T3068] ext2_file_write_iter+0x10/0x1c [ 52.306326][ T3068] vfs_write+0x1ac/0x2c4 [ 52.307082][ T3068] __arm64_sys_pwrite64+0x84/0xc8 [ 52.307999][ T3068] invoke_syscall+0x40/0xdc [ 52.308840][ T3068] el0_svc_common+0xb0/0xe8 [ 52.309667][ T3068] do_el0_svc+0x24/0x80 [ 52.310405][ T3068] el0_svc+0x34/0xd4 [ 52.311102][ T3068] el0t_64_sync_handler+0x84/0xf0 [ 52.312041][ T3068] el0t_64_sync+0x18c/0x190 [ 52.312890][ T3068] ---[ end trace 0000000000000000 ]--- [ 52.313990][ T3068] ------------[ cut here ]------------ [ 52.314804][ T3068] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 52.314855][ T3068] WARNING: CPU: 0 PID: 3068 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.317887][ T3068] Modules linked in: [ 52.318564][ T3068] CPU: 0 PID: 3068 Comm: syz.2.49 Tainted: G W syzkaller #0 [ 52.320108][ T3068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.321889][ T3068] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.323308][ T3068] pc : read_block_bitmap+0xec/0x224 [ 52.324221][ T3068] lr : read_block_bitmap+0xe8/0x224 [ 52.325141][ T3068] sp : ffff800012863a50 [ 52.325872][ T3068] x29: ffff800012863a50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 52.327327][ T3068] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 52.328840][ T3068] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 52.330253][ T3068] x20: 0000000000000000 x19: ffff0000c9dd8000 x18: 00000000000d0800 [ 52.331714][ T3068] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000082 [ 52.333144][ T3068] x14: 00000000000b5cab x13: 000000000266e5d7 x12: ffff80000e90c000 [ 52.334574][ T3068] x11: 0000000000000004 x10: 00000000ffffffff x9 : f2f6497126ce2700 [ 52.335970][ T3068] x8 : f2f6497126ce2700 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 52.337411][ T3068] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.338797][ T3068] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 52.340188][ T3068] Call trace: [ 52.340771][ T3068] read_block_bitmap+0xec/0x224 [ 52.341676][ T3068] ext2_free_blocks+0x104/0x368 [ 52.342531][ T3068] __ext2_truncate_blocks+0xb8/0x550 [ 52.343476][ T3068] ext2_write_failed+0xa4/0xc0 [ 52.344321][ T3068] ext2_write_begin+0x54/0x6c [ 52.345159][ T3068] generic_perform_write+0x80/0x1e4 [ 52.346058][ T3068] __generic_file_write_iter+0x7c/0xc0 [ 52.347060][ T3068] generic_file_write_iter+0x50/0xd4 [ 52.347993][ T3068] ext2_file_write_iter+0x10/0x1c [ 52.348859][ T3068] vfs_write+0x1ac/0x2c4 [ 52.349594][ T3068] __arm64_sys_pwrite64+0x84/0xc8 [ 52.350471][ T3068] invoke_syscall+0x40/0xdc [ 52.351280][ T3068] el0_svc_common+0xb0/0xe8 [ 52.352088][ T3068] do_el0_svc+0x24/0x80 [ 52.352822][ T3068] el0_svc+0x34/0xd4 [ 52.353503][ T3068] el0t_64_sync_handler+0x84/0xf0 [ 52.354393][ T3068] el0t_64_sync+0x18c/0x190 [ 52.355169][ T3068] ---[ end trace 0000000000000000 ]--- [ 52.356305][ T3068] ------------[ cut here ]------------ [ 52.357199][ T3068] block_group >= groups_count - block_group = 3, groups_count = 1 [ 52.357210][ T3068] WARNING: CPU: 0 PID: 3068 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.360060][ T3068] Modules linked in: [ 52.360680][ T3068] CPU: 0 PID: 3068 Comm: syz.2.49 Tainted: G W syzkaller #0 [ 52.362012][ T3068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.363581][ T3068] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.364755][ T3068] pc : read_block_bitmap+0xec/0x224 [ 52.365556][ T3068] lr : read_block_bitmap+0xe8/0x224 [ 52.366469][ T3068] sp : ffff800012863a50 [ 52.367201][ T3068] x29: ffff800012863a50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 52.368626][ T3068] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 52.370055][ T3068] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 52.371511][ T3068] x20: 0000000000000000 x19: ffff0000c9dd8000 x18: ffff80000a3f7ee1 [ 52.372936][ T3068] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.374367][ T3068] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.375788][ T3068] x11: 00000000fffff5a0 x10: ffff80000a901be4 x9 : f2f6497126ce2700 [ 52.377225][ T3068] x8 : f2f6497126ce2700 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.378679][ T3068] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.380111][ T3068] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.381532][ T3068] Call trace: [ 52.382103][ T3068] read_block_bitmap+0xec/0x224 [ 52.382964][ T3068] ext2_free_blocks+0x104/0x368 [ 52.383818][ T3068] __ext2_truncate_blocks+0xb8/0x550 [ 52.384773][ T3068] ext2_write_failed+0xa4/0xc0 [ 52.385639][ T3068] ext2_write_begin+0x54/0x6c [ 52.386469][ T3068] generic_perform_write+0x80/0x1e4 [ 52.387401][ T3068] __generic_file_write_iter+0x7c/0xc0 [ 52.388396][ T3068] generic_file_write_iter+0x50/0xd4 [ 52.389344][ T3068] ext2_file_write_iter+0x10/0x1c [ 52.390199][ T3068] vfs_write+0x1ac/0x2c4 [ 52.390921][ T3068] __arm64_sys_pwrite64+0x84/0xc8 [ 52.391797][ T3068] invoke_syscall+0x40/0xdc [ 52.392612][ T3068] el0_svc_common+0xb0/0xe8 [ 52.393400][ T3068] do_el0_svc+0x24/0x80 [ 52.394121][ T3068] el0_svc+0x34/0xd4 [ 52.394796][ T3068] el0t_64_sync_handler+0x84/0xf0 [ 52.395679][ T3068] el0t_64_sync+0x18c/0x190 [ 52.396442][ T3068] ---[ end trace 0000000000000000 ]--- [ 52.397822][ T3068] ------------[ cut here ]------------ [ 52.398636][ T3068] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.398647][ T3068] WARNING: CPU: 0 PID: 3068 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.401295][ T3068] Modules linked in: [ 52.401885][ T3068] CPU: 0 PID: 3068 Comm: syz.2.49 Tainted: G W syzkaller #0 [ 52.403257][ T3068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.404816][ T3068] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.406081][ T3068] pc : read_block_bitmap+0xec/0x224 [ 52.406999][ T3068] lr : read_block_bitmap+0xe8/0x224 [ 52.407952][ T3068] sp : ffff800012863a50 [ 52.408679][ T3068] x29: ffff800012863a50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 52.410087][ T3068] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 52.411487][ T3068] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 52.412869][ T3068] x20: 0000000000000000 x19: ffff0000c9dd8000 x18: ffff80000a3f7ee1 [ 52.414266][ T3068] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.415641][ T3068] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.417059][ T3068] x11: 00000000fffff5c7 x10: ffff80000a901be4 x9 : f2f6497126ce2700 [ 52.418488][ T3068] x8 : f2f6497126ce2700 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.419900][ T3068] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.421361][ T3068] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.422823][ T3068] Call trace: [ 52.423384][ T3068] read_block_bitmap+0xec/0x224 [ 52.424235][ T3068] ext2_free_blocks+0x104/0x368 [ 52.425074][ T3068] __ext2_truncate_blocks+0x154/0x550 [ 52.426048][ T3068] ext2_write_failed+0xa4/0xc0 [ 52.426900][ T3068] ext2_write_begin+0x54/0x6c [ 52.427720][ T3068] generic_perform_write+0x80/0x1e4 [ 52.428663][ T3068] __generic_file_write_iter+0x7c/0xc0 [ 52.429624][ T3068] generic_file_write_iter+0x50/0xd4 [ 52.430545][ T3068] ext2_file_write_iter+0x10/0x1c [ 52.431449][ T3068] vfs_write+0x1ac/0x2c4 [ 52.432200][ T3068] __arm64_sys_pwrite64+0x84/0xc8 [ 52.433126][ T3068] invoke_syscall+0x40/0xdc [ 52.433913][ T3068] el0_svc_common+0xb0/0xe8 [ 52.434700][ T3068] do_el0_svc+0x24/0x80 [ 52.435439][ T3068] el0_svc+0x34/0xd4 [ 52.436106][ T3068] el0t_64_sync_handler+0x84/0xf0 [ 52.436963][ T3068] el0t_64_sync+0x18c/0x190 [ 52.437730][ T3068] ---[ end trace 0000000000000000 ]--- [ 52.444043][ T3070] loop2: detected capacity change from 0 to 512 [ 52.445282][ T3070] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 52.446667][ T3070] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 52.447899][ T3070] ext2 filesystem being mounted at /33/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.463849][ T3070] ------------[ cut here ]------------ [ 52.464759][ T3070] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.464774][ T3070] WARNING: CPU: 1 PID: 3070 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 52.467686][ T3070] Modules linked in: [ 52.468382][ T3070] CPU: 1 PID: 3070 Comm: syz.2.50 Tainted: G W syzkaller #0 [ 52.469902][ T3070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.471678][ T3070] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.473031][ T3070] pc : ext2_new_blocks+0x418/0x564 [ 52.473931][ T3070] lr : ext2_new_blocks+0x418/0x564 [ 52.474845][ T3070] sp : ffff8000128638f0 [ 52.475544][ T3070] x29: ffff800012863940 x28: 0000000000010000 x27: 0000000000000008 [ 52.476964][ T3070] x26: ffff0000cd5d8400 x25: 0000000000010000 x24: ffff8000128639f4 [ 52.478394][ T3070] x23: ffff0000c5ec6000 x22: 0000000000000000 x21: ffff8000128639f8 [ 52.479804][ T3070] x20: ffff0000c5e94b00 x19: ffff0000c8ef6518 x18: ffff80000a3f7ee1 [ 52.481170][ T3070] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.482548][ T3070] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.483950][ T3070] x11: 00000000fffff5f2 x10: ffff80000a901be4 x9 : b173b8f2bd1d0f00 [ 52.485362][ T3070] x8 : b173b8f2bd1d0f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.486798][ T3070] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.488249][ T3070] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 52.489708][ T3070] Call trace: [ 52.490292][ T3070] ext2_new_blocks+0x418/0x564 [ 52.491137][ T3070] ext2_get_blocks+0x4b4/0x9b0 [ 52.491985][ T3070] ext2_get_block+0x58/0x158 [ 52.492769][ T3070] __block_write_begin_int+0x10c/0x6f0 [ 52.493728][ T3070] block_write_begin+0x5c/0xa4 [ 52.494542][ T3070] ext2_write_begin+0x40/0x6c [ 52.495375][ T3070] generic_perform_write+0x80/0x1e4 [ 52.496273][ T3070] __generic_file_write_iter+0x7c/0xc0 [ 52.497214][ T3070] generic_file_write_iter+0x50/0xd4 [ 52.498144][ T3070] ext2_file_write_iter+0x10/0x1c [ 52.499007][ T3070] vfs_write+0x1ac/0x2c4 [ 52.499732][ T3070] __arm64_sys_pwrite64+0x84/0xc8 [ 52.500643][ T3070] invoke_syscall+0x40/0xdc [ 52.501442][ T3070] el0_svc_common+0xb0/0xe8 [ 52.502200][ T3070] do_el0_svc+0x24/0x80 [ 52.502910][ T3070] el0_svc+0x34/0xd4 [ 52.503571][ T3070] el0t_64_sync_handler+0x84/0xf0 [ 52.504449][ T3070] el0t_64_sync+0x18c/0x190 [ 52.505254][ T3070] ---[ end trace 0000000000000000 ]--- [ 52.506426][ T3070] ------------[ cut here ]------------ [ 52.507257][ T3070] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 52.507270][ T3070] WARNING: CPU: 1 PID: 3070 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.509843][ T3070] Modules linked in: [ 52.510394][ T3070] CPU: 1 PID: 3070 Comm: syz.2.50 Tainted: G W syzkaller #0 [ 52.511707][ T3070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.513289][ T3070] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.514494][ T3070] pc : read_block_bitmap+0xec/0x224 [ 52.515285][ T3070] lr : read_block_bitmap+0xe8/0x224 [ 52.516155][ T3070] sp : ffff800012863a50 [ 52.516874][ T3070] x29: ffff800012863a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 52.518242][ T3070] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 52.519622][ T3070] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 52.521016][ T3070] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 52.522414][ T3070] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.523799][ T3070] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.525163][ T3070] x11: 00000000fffff61a x10: ffff80000a901be4 x9 : b173b8f2bd1d0f00 [ 52.526532][ T3070] x8 : b173b8f2bd1d0f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.527938][ T3070] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.529337][ T3070] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.530772][ T3070] Call trace: [ 52.531333][ T3070] read_block_bitmap+0xec/0x224 [ 52.532160][ T3070] ext2_free_blocks+0x104/0x368 [ 52.532994][ T3070] __ext2_truncate_blocks+0xb8/0x550 [ 52.533895][ T3070] ext2_write_failed+0xa4/0xc0 [ 52.534721][ T3070] ext2_write_begin+0x54/0x6c [ 52.535512][ T3070] generic_perform_write+0x80/0x1e4 [ 52.536401][ T3070] __generic_file_write_iter+0x7c/0xc0 [ 52.537342][ T3070] generic_file_write_iter+0x50/0xd4 [ 52.538263][ T3070] ext2_file_write_iter+0x10/0x1c [ 52.539159][ T3070] vfs_write+0x1ac/0x2c4 [ 52.539877][ T3070] __arm64_sys_pwrite64+0x84/0xc8 [ 52.540736][ T3070] invoke_syscall+0x40/0xdc [ 52.541499][ T3070] el0_svc_common+0xb0/0xe8 [ 52.542260][ T3070] do_el0_svc+0x24/0x80 [ 52.542970][ T3070] el0_svc+0x34/0xd4 [ 52.543642][ T3070] el0t_64_sync_handler+0x84/0xf0 [ 52.544519][ T3070] el0t_64_sync+0x18c/0x190 [ 52.545331][ T3070] ---[ end trace 0000000000000000 ]--- [ 52.546380][ T3070] ------------[ cut here ]------------ [ 52.547178][ T3070] block_group >= groups_count - block_group = 3, groups_count = 1 [ 52.547192][ T3070] WARNING: CPU: 1 PID: 3070 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.549796][ T3070] Modules linked in: [ 52.550400][ T3070] CPU: 1 PID: 3070 Comm: syz.2.50 Tainted: G W syzkaller #0 [ 52.551753][ T3070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.553295][ T3070] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.554466][ T3070] pc : read_block_bitmap+0xec/0x224 [ 52.555237][ T3070] lr : read_block_bitmap+0xe8/0x224 [ 52.556087][ T3070] sp : ffff800012863a50 [ 52.556808][ T3070] x29: ffff800012863a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 52.558202][ T3070] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 52.559639][ T3070] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 52.561034][ T3070] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 52.562431][ T3070] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.563869][ T3070] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.565320][ T3070] x11: 00000000fffff641 x10: ffff80000a901be4 x9 : b173b8f2bd1d0f00 [ 52.566757][ T3070] x8 : b173b8f2bd1d0f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.568227][ T3070] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.569666][ T3070] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.571099][ T3070] Call trace: [ 52.571682][ T3070] read_block_bitmap+0xec/0x224 [ 52.572555][ T3070] ext2_free_blocks+0x104/0x368 [ 52.573428][ T3070] __ext2_truncate_blocks+0xb8/0x550 [ 52.574375][ T3070] ext2_write_failed+0xa4/0xc0 [ 52.575229][ T3070] ext2_write_begin+0x54/0x6c [ 52.576039][ T3070] generic_perform_write+0x80/0x1e4 [ 52.576979][ T3070] __generic_file_write_iter+0x7c/0xc0 [ 52.577951][ T3070] generic_file_write_iter+0x50/0xd4 [ 52.578880][ T3070] ext2_file_write_iter+0x10/0x1c [ 52.579770][ T3070] vfs_write+0x1ac/0x2c4 [ 52.580512][ T3070] __arm64_sys_pwrite64+0x84/0xc8 [ 52.581391][ T3070] invoke_syscall+0x40/0xdc [ 52.582207][ T3070] el0_svc_common+0xb0/0xe8 [ 52.583020][ T3070] do_el0_svc+0x24/0x80 [ 52.583659][ T3070] el0_svc+0x34/0xd4 [ 52.584402][ T3070] el0t_64_sync_handler+0x84/0xf0 [ 52.585285][ T3070] el0t_64_sync+0x18c/0x190 [ 52.586077][ T3070] ---[ end trace 0000000000000000 ]--- [ 52.587089][ T3070] ------------[ cut here ]------------ [ 52.587939][ T3070] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.587950][ T3070] WARNING: CPU: 1 PID: 3070 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.590602][ T3070] Modules linked in: [ 52.591206][ T3070] CPU: 1 PID: 3070 Comm: syz.2.50 Tainted: G W syzkaller #0 [ 52.592601][ T3070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.594229][ T3070] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.595490][ T3070] pc : read_block_bitmap+0xec/0x224 [ 52.596404][ T3070] lr : read_block_bitmap+0xe8/0x224 [ 52.597316][ T3070] sp : ffff800012863a50 [ 52.598062][ T3070] x29: ffff800012863a50 x28: ffff0000c4150400 x27: 0000000000000000 [ 52.599546][ T3070] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 52.600926][ T3070] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 52.602304][ T3070] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 52.603726][ T3070] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.605117][ T3070] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.606523][ T3070] x11: 00000000fffff668 x10: ffff80000a901be4 x9 : b173b8f2bd1d0f00 [ 52.607931][ T3070] x8 : b173b8f2bd1d0f00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.609382][ T3070] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.610783][ T3070] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.612127][ T3070] Call trace: [ 52.612693][ T3070] read_block_bitmap+0xec/0x224 [ 52.613523][ T3070] ext2_free_blocks+0x104/0x368 [ 52.614354][ T3070] __ext2_truncate_blocks+0x154/0x550 [ 52.615326][ T3070] ext2_write_failed+0xa4/0xc0 [ 52.616131][ T3070] ext2_write_begin+0x54/0x6c [ 52.616943][ T3070] generic_perform_write+0x80/0x1e4 [ 52.617856][ T3070] __generic_file_write_iter+0x7c/0xc0 [ 52.618812][ T3070] generic_file_write_iter+0x50/0xd4 [ 52.619713][ T3070] ext2_file_write_iter+0x10/0x1c [ 52.620595][ T3070] vfs_write+0x1ac/0x2c4 [ 52.621316][ T3070] __arm64_sys_pwrite64+0x84/0xc8 [ 52.622152][ T3070] invoke_syscall+0x40/0xdc [ 52.622916][ T3070] el0_svc_common+0xb0/0xe8 [ 52.623731][ T3070] do_el0_svc+0x24/0x80 [ 52.624457][ T3070] el0_svc+0x34/0xd4 [ 52.625138][ T3070] el0t_64_sync_handler+0x84/0xf0 [ 52.626018][ T3070] el0t_64_sync+0x18c/0x190 [ 52.626796][ T3070] ---[ end trace 0000000000000000 ]--- [ 52.630545][ T3072] loop2: detected capacity change from 0 to 512 [ 52.631749][ T3072] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 52.633004][ T3072] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 52.634253][ T3072] ext2 filesystem being mounted at /34/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.640358][ T3072] ------------[ cut here ]------------ [ 52.641176][ T3072] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.641189][ T3072] WARNING: CPU: 1 PID: 3072 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 52.643800][ T3072] Modules linked in: [ 52.644384][ T3072] CPU: 1 PID: 3072 Comm: syz.2.51 Tainted: G W syzkaller #0 [ 52.645751][ T3072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.647564][ T3072] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.648940][ T3072] pc : ext2_new_blocks+0x418/0x564 [ 52.649837][ T3072] lr : ext2_new_blocks+0x418/0x564 [ 52.650768][ T3072] sp : ffff80001286b8f0 [ 52.651507][ T3072] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 52.652884][ T3072] x26: ffff0000cd594400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 52.654331][ T3072] x23: ffff0000c940f000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 52.655743][ T3072] x20: ffff0000c4e18800 x19: ffff0000c8ef5378 x18: ffff80000a3f7ee1 [ 52.657137][ T3072] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.658540][ T3072] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.659959][ T3072] x11: 00000000fffff693 x10: ffff80000a901be4 x9 : 7361f325a77b0000 [ 52.661403][ T3072] x8 : 7361f325a77b0000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.662821][ T3072] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.664237][ T3072] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 52.665704][ T3072] Call trace: [ 52.666263][ T3072] ext2_new_blocks+0x418/0x564 [ 52.667075][ T3072] ext2_get_blocks+0x4b4/0x9b0 [ 52.667861][ T3072] ext2_get_block+0x58/0x158 [ 52.668677][ T3072] __block_write_begin_int+0x10c/0x6f0 [ 52.669582][ T3072] block_write_begin+0x5c/0xa4 [ 52.670362][ T3072] ext2_write_begin+0x40/0x6c [ 52.671172][ T3072] generic_perform_write+0x80/0x1e4 [ 52.672041][ T3072] __generic_file_write_iter+0x7c/0xc0 [ 52.672958][ T3072] generic_file_write_iter+0x50/0xd4 [ 52.673829][ T3072] ext2_file_write_iter+0x10/0x1c [ 52.674660][ T3072] vfs_write+0x1ac/0x2c4 [ 52.675388][ T3072] __arm64_sys_pwrite64+0x84/0xc8 [ 52.676234][ T3072] invoke_syscall+0x40/0xdc [ 52.676986][ T3072] el0_svc_common+0xb0/0xe8 [ 52.677726][ T3072] do_el0_svc+0x24/0x80 [ 52.678423][ T3072] el0_svc+0x34/0xd4 [ 52.679090][ T3072] el0t_64_sync_handler+0x84/0xf0 [ 52.679942][ T3072] el0t_64_sync+0x18c/0x190 [ 52.680761][ T3072] ---[ end trace 0000000000000000 ]--- [ 52.681848][ T3072] ------------[ cut here ]------------ [ 52.682697][ T3072] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 52.682708][ T3072] WARNING: CPU: 1 PID: 3072 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.685526][ T3072] Modules linked in: [ 52.686220][ T3072] CPU: 1 PID: 3072 Comm: syz.2.51 Tainted: G W syzkaller #0 [ 52.687807][ T3072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.689626][ T3072] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.691026][ T3072] pc : read_block_bitmap+0xec/0x224 [ 52.691931][ T3072] lr : read_block_bitmap+0xe8/0x224 [ 52.692840][ T3072] sp : ffff80001286ba50 [ 52.693566][ T3072] x29: ffff80001286ba50 x28: ffff0000c5eeb800 x27: 0000000000000000 [ 52.694985][ T3072] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 52.696380][ T3072] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 52.697774][ T3072] x20: 0000000000000000 x19: ffff0000c940f000 x18: ffff80000a3f7ee1 [ 52.699204][ T3072] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.700608][ T3072] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.702132][ T3072] x11: 00000000fffff6bb x10: ffff80000a901be4 x9 : 7361f325a77b0000 [ 52.703488][ T3072] x8 : 7361f325a77b0000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.704842][ T3072] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.706217][ T3072] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.707576][ T3072] Call trace: [ 52.708140][ T3072] read_block_bitmap+0xec/0x224 [ 52.708962][ T3072] ext2_free_blocks+0x104/0x368 [ 52.709820][ T3072] __ext2_truncate_blocks+0xb8/0x550 [ 52.710743][ T3072] ext2_write_failed+0xa4/0xc0 [ 52.711549][ T3072] ext2_write_begin+0x54/0x6c [ 52.712340][ T3072] generic_perform_write+0x80/0x1e4 [ 52.713241][ T3072] __generic_file_write_iter+0x7c/0xc0 [ 52.714179][ T3072] generic_file_write_iter+0x50/0xd4 [ 52.715083][ T3072] ext2_file_write_iter+0x10/0x1c [ 52.715933][ T3072] vfs_write+0x1ac/0x2c4 [ 52.716651][ T3072] __arm64_sys_pwrite64+0x84/0xc8 [ 52.717530][ T3072] invoke_syscall+0x40/0xdc [ 52.718324][ T3072] el0_svc_common+0xb0/0xe8 [ 52.719121][ T3072] do_el0_svc+0x24/0x80 [ 52.719863][ T3072] el0_svc+0x34/0xd4 [ 52.720547][ T3072] el0t_64_sync_handler+0x84/0xf0 [ 52.721425][ T3072] el0t_64_sync+0x18c/0x190 [ 52.722210][ T3072] ---[ end trace 0000000000000000 ]--- [ 52.723207][ T3072] ------------[ cut here ]------------ [ 52.724061][ T3072] block_group >= groups_count - block_group = 3, groups_count = 1 [ 52.724123][ T3072] WARNING: CPU: 1 PID: 3072 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.727169][ T3072] Modules linked in: [ 52.727880][ T3072] CPU: 1 PID: 3072 Comm: syz.2.51 Tainted: G W syzkaller #0 [ 52.729445][ T3072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.731200][ T3072] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.732597][ T3072] pc : read_block_bitmap+0xec/0x224 [ 52.733488][ T3072] lr : read_block_bitmap+0xe8/0x224 [ 52.734400][ T3072] sp : ffff80001286ba50 [ 52.735122][ T3072] x29: ffff80001286ba50 x28: ffff0000c5eeb800 x27: 0000000000000000 [ 52.736499][ T3072] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 52.737885][ T3072] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 52.739269][ T3072] x20: 0000000000000000 x19: ffff0000c940f000 x18: 0000000000000000 [ 52.740645][ T3072] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 52.742119][ T3072] x14: 00000000000fdd42 x13: 0000000002af1fa4 x12: ffff80000e90c000 [ 52.743488][ T3072] x11: 0000000000000004 x10: 00000000ffffffff x9 : 7361f325a77b0000 [ 52.744841][ T3072] x8 : 7361f325a77b0000 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 52.746213][ T3072] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.747571][ T3072] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 52.748925][ T3072] Call trace: [ 52.749479][ T3072] read_block_bitmap+0xec/0x224 [ 52.750402][ T3072] ext2_free_blocks+0x104/0x368 [ 52.751249][ T3072] __ext2_truncate_blocks+0xb8/0x550 [ 52.752182][ T3072] ext2_write_failed+0xa4/0xc0 [ 52.753052][ T3072] ext2_write_begin+0x54/0x6c [ 52.753884][ T3072] generic_perform_write+0x80/0x1e4 [ 52.754797][ T3072] __generic_file_write_iter+0x7c/0xc0 [ 52.755765][ T3072] generic_file_write_iter+0x50/0xd4 [ 52.756724][ T3072] ext2_file_write_iter+0x10/0x1c [ 52.757612][ T3072] vfs_write+0x1ac/0x2c4 [ 52.758353][ T3072] __arm64_sys_pwrite64+0x84/0xc8 [ 52.759262][ T3072] invoke_syscall+0x40/0xdc [ 52.760053][ T3072] el0_svc_common+0xb0/0xe8 [ 52.760862][ T3072] do_el0_svc+0x24/0x80 [ 52.761592][ T3072] el0_svc+0x34/0xd4 [ 52.762256][ T3072] el0t_64_sync_handler+0x84/0xf0 [ 52.763135][ T3072] el0t_64_sync+0x18c/0x190 [ 52.763920][ T3072] ---[ end trace 0000000000000000 ]--- [ 52.764920][ T3072] ------------[ cut here ]------------ [ 52.765780][ T3072] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.765918][ T3072] WARNING: CPU: 1 PID: 3072 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.768397][ T3072] Modules linked in: [ 52.768964][ T3072] CPU: 1 PID: 3072 Comm: syz.2.51 Tainted: G W syzkaller #0 [ 52.770258][ T3072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.771796][ T3072] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.773009][ T3072] pc : read_block_bitmap+0xec/0x224 [ 52.773782][ T3072] lr : read_block_bitmap+0xe8/0x224 [ 52.774542][ T3072] sp : ffff80001286ba50 [ 52.775171][ T3072] x29: ffff80001286ba50 x28: ffff0000c5eeb800 x27: 0000000000000000 [ 52.776505][ T3072] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 52.777902][ T3072] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 52.779320][ T3072] x20: 0000000000000000 x19: ffff0000c940f000 x18: 0000000000019c00 [ 52.780725][ T3072] x17: 0000000000000001 x16: 0000000000000000 x15: 00000000000002f5 [ 52.782153][ T3072] x14: 00000000000de582 x13: 0000000002c17e0d x12: ffff80000e90c000 [ 52.783538][ T3072] x11: 0000000000000004 x10: 00000000ffffffff x9 : 7361f325a77b0000 [ 52.784879][ T3072] x8 : 7361f325a77b0000 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 52.786219][ T3072] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.787564][ T3072] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 52.788921][ T3072] Call trace: [ 52.789508][ T3072] read_block_bitmap+0xec/0x224 [ 52.790346][ T3072] ext2_free_blocks+0x104/0x368 [ 52.791186][ T3072] __ext2_truncate_blocks+0x154/0x550 [ 52.792120][ T3072] ext2_write_failed+0xa4/0xc0 [ 52.792917][ T3072] ext2_write_begin+0x54/0x6c [ 52.793763][ T3072] generic_perform_write+0x80/0x1e4 [ 52.794659][ T3072] __generic_file_write_iter+0x7c/0xc0 [ 52.795603][ T3072] generic_file_write_iter+0x50/0xd4 [ 52.796518][ T3072] ext2_file_write_iter+0x10/0x1c [ 52.797425][ T3072] vfs_write+0x1ac/0x2c4 [ 52.798192][ T3072] __arm64_sys_pwrite64+0x84/0xc8 [ 52.799079][ T3072] invoke_syscall+0x40/0xdc [ 52.799868][ T3072] el0_svc_common+0xb0/0xe8 [ 52.800669][ T3072] do_el0_svc+0x24/0x80 [ 52.801428][ T3072] el0_svc+0x34/0xd4 [ 52.802091][ T3072] el0t_64_sync_handler+0x84/0xf0 [ 52.802944][ T3072] el0t_64_sync+0x18c/0x190 [ 52.803706][ T3072] ---[ end trace 0000000000000000 ]--- [ 52.814827][ T3074] loop2: detected capacity change from 0 to 512 [ 52.817914][ T3074] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 52.819222][ T3074] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 52.820435][ T3074] ext2 filesystem being mounted at /35/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.831165][ T3074] ------------[ cut here ]------------ [ 52.832087][ T3074] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.832099][ T3074] WARNING: CPU: 0 PID: 3074 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 52.834825][ T3074] Modules linked in: [ 52.835471][ T3074] CPU: 0 PID: 3074 Comm: syz.2.52 Tainted: G W syzkaller #0 [ 52.837116][ T3074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.838912][ T3074] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.840317][ T3074] pc : ext2_new_blocks+0x418/0x564 [ 52.841229][ T3074] lr : ext2_new_blocks+0x418/0x564 [ 52.842152][ T3074] sp : ffff8000128638f0 [ 52.842870][ T3074] x29: ffff800012863940 x28: 0000000000010000 x27: 0000000000000008 [ 52.844250][ T3074] x26: ffff0000d4229400 x25: 0000000000010000 x24: ffff8000128639f4 [ 52.845627][ T3074] x23: ffff0000c5f3a000 x22: 0000000000000000 x21: ffff8000128639f8 [ 52.847092][ T3074] x20: ffff0000c45cf500 x19: ffff0000c8e7f6b8 x18: ffff80000a3f7ee1 [ 52.848499][ T3074] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.849930][ T3074] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.851375][ T3074] x11: 00000000fffff734 x10: ffff80000a901be4 x9 : 7640c01b14c25300 [ 52.852877][ T3074] x8 : 7640c01b14c25300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.854319][ T3074] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.855782][ T3074] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 52.857227][ T3074] Call trace: [ 52.857798][ T3074] ext2_new_blocks+0x418/0x564 [ 52.858637][ T3074] ext2_get_blocks+0x4b4/0x9b0 [ 52.859509][ T3074] ext2_get_block+0x58/0x158 [ 52.860344][ T3074] __block_write_begin_int+0x10c/0x6f0 [ 52.861334][ T3074] block_write_begin+0x5c/0xa4 [ 52.862185][ T3074] ext2_write_begin+0x40/0x6c [ 52.863062][ T3074] generic_perform_write+0x80/0x1e4 [ 52.864026][ T3074] __generic_file_write_iter+0x7c/0xc0 [ 52.865044][ T3074] generic_file_write_iter+0x50/0xd4 [ 52.866017][ T3074] ext2_file_write_iter+0x10/0x1c [ 52.866908][ T3074] vfs_write+0x1ac/0x2c4 [ 52.867665][ T3074] __arm64_sys_pwrite64+0x84/0xc8 [ 52.868569][ T3074] invoke_syscall+0x40/0xdc [ 52.869359][ T3074] el0_svc_common+0xb0/0xe8 [ 52.870161][ T3074] do_el0_svc+0x24/0x80 [ 52.870873][ T3074] el0_svc+0x34/0xd4 [ 52.871560][ T3074] el0t_64_sync_handler+0x84/0xf0 [ 52.872447][ T3074] el0t_64_sync+0x18c/0x190 [ 52.873237][ T3074] ---[ end trace 0000000000000000 ]--- [ 52.874348][ T3074] ------------[ cut here ]------------ [ 52.875223][ T3074] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 52.875235][ T3074] WARNING: CPU: 0 PID: 3074 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.878306][ T3074] Modules linked in: [ 52.878982][ T3074] CPU: 0 PID: 3074 Comm: syz.2.52 Tainted: G W syzkaller #0 [ 52.880554][ T3074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.882343][ T3074] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.883701][ T3074] pc : read_block_bitmap+0xec/0x224 [ 52.884622][ T3074] lr : read_block_bitmap+0xe8/0x224 [ 52.885568][ T3074] sp : ffff800012863a50 [ 52.886268][ T3074] x29: ffff800012863a50 x28: ffff0000c5eea800 x27: 0000000000000000 [ 52.887642][ T3074] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 52.889072][ T3074] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 52.890510][ T3074] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 52.891923][ T3074] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.893279][ T3074] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.894630][ T3074] x11: 00000000fffff75c x10: ffff80000a901be4 x9 : 7640c01b14c25300 [ 52.896001][ T3074] x8 : 7640c01b14c25300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.897376][ T3074] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.898709][ T3074] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.900116][ T3074] Call trace: [ 52.900658][ T3074] read_block_bitmap+0xec/0x224 [ 52.901530][ T3074] ext2_free_blocks+0x104/0x368 [ 52.902375][ T3074] __ext2_truncate_blocks+0xb8/0x550 [ 52.903275][ T3074] ext2_write_failed+0xa4/0xc0 [ 52.904123][ T3074] ext2_write_begin+0x54/0x6c [ 52.904930][ T3074] generic_perform_write+0x80/0x1e4 [ 52.905901][ T3074] __generic_file_write_iter+0x7c/0xc0 [ 52.906880][ T3074] generic_file_write_iter+0x50/0xd4 [ 52.907835][ T3074] ext2_file_write_iter+0x10/0x1c [ 52.908706][ T3074] vfs_write+0x1ac/0x2c4 [ 52.909440][ T3074] __arm64_sys_pwrite64+0x84/0xc8 [ 52.910300][ T3074] invoke_syscall+0x40/0xdc [ 52.911079][ T3074] el0_svc_common+0xb0/0xe8 [ 52.911866][ T3074] do_el0_svc+0x24/0x80 [ 52.912611][ T3074] el0_svc+0x34/0xd4 [ 52.913297][ T3074] el0t_64_sync_handler+0x84/0xf0 [ 52.914176][ T3074] el0t_64_sync+0x18c/0x190 [ 52.914990][ T3074] ---[ end trace 0000000000000000 ]--- [ 52.916257][ T3074] ------------[ cut here ]------------ [ 52.917075][ T3074] block_group >= groups_count - block_group = 3, groups_count = 1 [ 52.917086][ T3074] WARNING: CPU: 0 PID: 3074 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.919656][ T3074] Modules linked in: [ 52.920238][ T3074] CPU: 0 PID: 3074 Comm: syz.2.52 Tainted: G W syzkaller #0 [ 52.921546][ T3074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.923085][ T3074] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.924321][ T3074] pc : read_block_bitmap+0xec/0x224 [ 52.925094][ T3074] lr : read_block_bitmap+0xe8/0x224 [ 52.925937][ T3074] sp : ffff800012863a50 [ 52.926652][ T3074] x29: ffff800012863a50 x28: ffff0000c5eea800 x27: 0000000000000000 [ 52.928042][ T3074] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 52.929416][ T3074] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 52.930802][ T3074] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 52.932188][ T3074] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.933591][ T3074] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.934976][ T3074] x11: 00000000fffff783 x10: ffff80000a901be4 x9 : 7640c01b14c25300 [ 52.936376][ T3074] x8 : 7640c01b14c25300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.937802][ T3074] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.939206][ T3074] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.940671][ T3074] Call trace: [ 52.941242][ T3074] read_block_bitmap+0xec/0x224 [ 52.942098][ T3074] ext2_free_blocks+0x104/0x368 [ 52.942964][ T3074] __ext2_truncate_blocks+0xb8/0x550 [ 52.943894][ T3074] ext2_write_failed+0xa4/0xc0 [ 52.944733][ T3074] ext2_write_begin+0x54/0x6c [ 52.945595][ T3074] generic_perform_write+0x80/0x1e4 [ 52.946498][ T3074] __generic_file_write_iter+0x7c/0xc0 [ 52.947457][ T3074] generic_file_write_iter+0x50/0xd4 [ 52.948384][ T3074] ext2_file_write_iter+0x10/0x1c [ 52.949259][ T3074] vfs_write+0x1ac/0x2c4 [ 52.950003][ T3074] __arm64_sys_pwrite64+0x84/0xc8 [ 52.950879][ T3074] invoke_syscall+0x40/0xdc [ 52.951674][ T3074] el0_svc_common+0xb0/0xe8 [ 52.952465][ T3074] do_el0_svc+0x24/0x80 [ 52.953190][ T3074] el0_svc+0x34/0xd4 [ 52.953879][ T3074] el0t_64_sync_handler+0x84/0xf0 [ 52.954775][ T3074] el0t_64_sync+0x18c/0x190 [ 52.955564][ T3074] ---[ end trace 0000000000000000 ]--- [ 52.956531][ T3074] ------------[ cut here ]------------ [ 52.957356][ T3074] block_group >= groups_count - block_group = 7, groups_count = 1 [ 52.957367][ T3074] WARNING: CPU: 0 PID: 3074 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 52.959980][ T3074] Modules linked in: [ 52.960570][ T3074] CPU: 0 PID: 3074 Comm: syz.2.52 Tainted: G W syzkaller #0 [ 52.961902][ T3074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.963482][ T3074] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.964689][ T3074] pc : read_block_bitmap+0xec/0x224 [ 52.965482][ T3074] lr : read_block_bitmap+0xe8/0x224 [ 52.966408][ T3074] sp : ffff800012863a50 [ 52.967154][ T3074] x29: ffff800012863a50 x28: ffff0000c5eea800 x27: 0000000000000000 [ 52.968569][ T3074] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 52.969965][ T3074] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 52.971349][ T3074] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 52.972759][ T3074] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 52.974162][ T3074] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 52.975572][ T3074] x11: 00000000fffff7aa x10: ffff80000a901be4 x9 : 7640c01b14c25300 [ 52.977027][ T3074] x8 : 7640c01b14c25300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 52.978561][ T3074] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 52.980104][ T3074] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 52.981639][ T3074] Call trace: [ 52.982261][ T3074] read_block_bitmap+0xec/0x224 [ 52.983162][ T3074] ext2_free_blocks+0x104/0x368 [ 52.984067][ T3074] __ext2_truncate_blocks+0x154/0x550 [ 52.985075][ T3074] ext2_write_failed+0xa4/0xc0 [ 52.985935][ T3074] ext2_write_begin+0x54/0x6c [ 52.986783][ T3074] generic_perform_write+0x80/0x1e4 [ 52.987736][ T3074] __generic_file_write_iter+0x7c/0xc0 [ 52.988736][ T3074] generic_file_write_iter+0x50/0xd4 [ 52.989694][ T3074] ext2_file_write_iter+0x10/0x1c [ 52.990576][ T3074] vfs_write+0x1ac/0x2c4 [ 52.991328][ T3074] __arm64_sys_pwrite64+0x84/0xc8 [ 52.992211][ T3074] invoke_syscall+0x40/0xdc [ 52.993004][ T3074] el0_svc_common+0xb0/0xe8 [ 52.993803][ T3074] do_el0_svc+0x24/0x80 [ 52.994541][ T3074] el0_svc+0x34/0xd4 [ 52.995228][ T3074] el0t_64_sync_handler+0x84/0xf0 [ 52.996127][ T3074] el0t_64_sync+0x18c/0x190 [ 52.996916][ T3074] ---[ end trace 0000000000000000 ]--- [ 53.001244][ T3076] loop2: detected capacity change from 0 to 512 [ 53.002462][ T3076] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 53.003577][ T3076] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 53.004846][ T3076] ext2 filesystem being mounted at /36/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.008817][ T3076] ------------[ cut here ]------------ [ 53.009733][ T3076] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.009746][ T3076] WARNING: CPU: 1 PID: 3076 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 53.012919][ T3076] Modules linked in: [ 53.013637][ T3076] CPU: 1 PID: 3076 Comm: syz.2.53 Tainted: G W syzkaller #0 [ 53.015231][ T3076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.017108][ T3076] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.018529][ T3076] pc : ext2_new_blocks+0x418/0x564 [ 53.019456][ T3076] lr : ext2_new_blocks+0x418/0x564 [ 53.020396][ T3076] sp : ffff80001286b8f0 [ 53.021156][ T3076] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 53.022606][ T3076] x26: ffff0000cd5ce400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 53.024083][ T3076] x23: ffff0000c5ec2000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 53.025579][ T3076] x20: ffff0000c56b2600 x19: ffff0000c8ef4d98 x18: ffff80000a3f7ee1 [ 53.026994][ T3076] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.028399][ T3076] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.029854][ T3076] x11: 00000000fffff7d5 x10: ffff80000a901be4 x9 : f9e48d8f2f176a00 [ 53.031260][ T3076] x8 : f9e48d8f2f176a00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.032673][ T3076] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.034135][ T3076] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 53.035537][ T3076] Call trace: [ 53.036102][ T3076] ext2_new_blocks+0x418/0x564 [ 53.036928][ T3076] ext2_get_blocks+0x4b4/0x9b0 [ 53.037773][ T3076] ext2_get_block+0x58/0x158 [ 53.038576][ T3076] __block_write_begin_int+0x10c/0x6f0 [ 53.039549][ T3076] block_write_begin+0x5c/0xa4 [ 53.040412][ T3076] ext2_write_begin+0x40/0x6c [ 53.041241][ T3076] generic_perform_write+0x80/0x1e4 [ 53.042159][ T3076] __generic_file_write_iter+0x7c/0xc0 [ 53.043126][ T3076] generic_file_write_iter+0x50/0xd4 [ 53.044053][ T3076] ext2_file_write_iter+0x10/0x1c [ 53.044927][ T3076] vfs_write+0x1ac/0x2c4 [ 53.045656][ T3076] __arm64_sys_pwrite64+0x84/0xc8 [ 53.046522][ T3076] invoke_syscall+0x40/0xdc [ 53.047296][ T3076] el0_svc_common+0xb0/0xe8 [ 53.048093][ T3076] do_el0_svc+0x24/0x80 [ 53.048833][ T3076] el0_svc+0x34/0xd4 [ 53.049509][ T3076] el0t_64_sync_handler+0x84/0xf0 [ 53.050366][ T3076] el0t_64_sync+0x18c/0x190 [ 53.051122][ T3076] ---[ end trace 0000000000000000 ]--- [ 53.052305][ T3076] ------------[ cut here ]------------ [ 53.053292][ T3076] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 53.053304][ T3076] WARNING: CPU: 1 PID: 3076 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.055959][ T3076] Modules linked in: [ 53.056626][ T3076] CPU: 1 PID: 3076 Comm: syz.2.53 Tainted: G W syzkaller #0 [ 53.058115][ T3076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.059864][ T3076] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.061187][ T3076] pc : read_block_bitmap+0xec/0x224 [ 53.062035][ T3076] lr : read_block_bitmap+0xe8/0x224 [ 53.062891][ T3076] sp : ffff80001286ba50 [ 53.063572][ T3076] x29: ffff80001286ba50 x28: ffff0000c4152000 x27: 0000000000000000 [ 53.064914][ T3076] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 53.066298][ T3076] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 53.067670][ T3076] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: ffff80000a3f7ee1 [ 53.069041][ T3076] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.070386][ T3076] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.071746][ T3076] x11: 00000000fffff7fd x10: ffff80000a901be4 x9 : f9e48d8f2f176a00 [ 53.073100][ T3076] x8 : f9e48d8f2f176a00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.074508][ T3076] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.075890][ T3076] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.077249][ T3076] Call trace: [ 53.077807][ T3076] read_block_bitmap+0xec/0x224 [ 53.078633][ T3076] ext2_free_blocks+0x104/0x368 [ 53.079450][ T3076] __ext2_truncate_blocks+0xb8/0x550 [ 53.080361][ T3076] ext2_write_failed+0xa4/0xc0 [ 53.081224][ T3076] ext2_write_begin+0x54/0x6c [ 53.082041][ T3076] generic_perform_write+0x80/0x1e4 [ 53.082942][ T3076] __generic_file_write_iter+0x7c/0xc0 [ 53.083887][ T3076] generic_file_write_iter+0x50/0xd4 [ 53.084795][ T3076] ext2_file_write_iter+0x10/0x1c [ 53.085655][ T3076] vfs_write+0x1ac/0x2c4 [ 53.086422][ T3076] __arm64_sys_pwrite64+0x84/0xc8 [ 53.087282][ T3076] invoke_syscall+0x40/0xdc [ 53.088059][ T3076] el0_svc_common+0xb0/0xe8 [ 53.088830][ T3076] do_el0_svc+0x24/0x80 [ 53.089567][ T3076] el0_svc+0x34/0xd4 [ 53.090252][ T3076] el0t_64_sync_handler+0x84/0xf0 [ 53.091129][ T3076] el0t_64_sync+0x18c/0x190 [ 53.091917][ T3076] ---[ end trace 0000000000000000 ]--- [ 53.092892][ T3076] ------------[ cut here ]------------ [ 53.093719][ T3076] block_group >= groups_count - block_group = 3, groups_count = 1 [ 53.093732][ T3076] WARNING: CPU: 1 PID: 3076 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.096702][ T3076] Modules linked in: [ 53.097418][ T3076] CPU: 1 PID: 3076 Comm: syz.2.53 Tainted: G W syzkaller #0 [ 53.098999][ T3076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.100890][ T3076] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.102296][ T3076] pc : read_block_bitmap+0xec/0x224 [ 53.103199][ T3076] lr : read_block_bitmap+0xe8/0x224 [ 53.104196][ T3076] sp : ffff80001286ba50 [ 53.104925][ T3076] x29: ffff80001286ba50 x28: ffff0000c4152000 x27: 0000000000000000 [ 53.106358][ T3076] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 53.107712][ T3076] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 53.109087][ T3076] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: ffff80000a3f7ee1 [ 53.110495][ T3076] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.111941][ T3076] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.113355][ T3076] x11: 00000000fffff824 x10: ffff80000a901be4 x9 : f9e48d8f2f176a00 [ 53.114769][ T3076] x8 : f9e48d8f2f176a00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.116207][ T3076] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.117627][ T3076] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.119076][ T3076] Call trace: [ 53.119634][ T3076] read_block_bitmap+0xec/0x224 [ 53.120490][ T3076] ext2_free_blocks+0x104/0x368 [ 53.121349][ T3076] __ext2_truncate_blocks+0xb8/0x550 [ 53.122259][ T3076] ext2_write_failed+0xa4/0xc0 [ 53.123062][ T3076] ext2_write_begin+0x54/0x6c [ 53.123855][ T3076] generic_perform_write+0x80/0x1e4 [ 53.124723][ T3076] __generic_file_write_iter+0x7c/0xc0 [ 53.125656][ T3076] generic_file_write_iter+0x50/0xd4 [ 53.126563][ T3076] ext2_file_write_iter+0x10/0x1c [ 53.127434][ T3076] vfs_write+0x1ac/0x2c4 [ 53.128172][ T3076] __arm64_sys_pwrite64+0x84/0xc8 [ 53.129019][ T3076] invoke_syscall+0x40/0xdc [ 53.129774][ T3076] el0_svc_common+0xb0/0xe8 [ 53.130551][ T3076] do_el0_svc+0x24/0x80 [ 53.131318][ T3076] el0_svc+0x34/0xd4 [ 53.132018][ T3076] el0t_64_sync_handler+0x84/0xf0 [ 53.132961][ T3076] el0t_64_sync+0x18c/0x190 [ 53.133768][ T3076] ---[ end trace 0000000000000000 ]--- [ 53.134773][ T3076] ------------[ cut here ]------------ [ 53.135729][ T3076] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.135807][ T3076] WARNING: CPU: 1 PID: 3076 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.138354][ T3076] Modules linked in: [ 53.138951][ T3076] CPU: 1 PID: 3076 Comm: syz.2.53 Tainted: G W syzkaller #0 [ 53.140331][ T3076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.141872][ T3076] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.143091][ T3076] pc : read_block_bitmap+0xec/0x224 [ 53.143903][ T3076] lr : read_block_bitmap+0xe8/0x224 [ 53.144738][ T3076] sp : ffff80001286ba50 [ 53.145368][ T3076] x29: ffff80001286ba50 x28: ffff0000c4152000 x27: 0000000000000000 [ 53.146766][ T3076] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 53.148206][ T3076] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 53.149627][ T3076] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: 0000000000000400 [ 53.151064][ T3076] x17: 0000000000000001 x16: 0000000000000000 x15: 00000000000002ff [ 53.152489][ T3076] x14: 00000000000de27e x13: 0000000002c26b03 x12: ffff80000e90c000 [ 53.153885][ T3076] x11: 0000000000000004 x10: 00000000ffffffff x9 : f9e48d8f2f176a00 [ 53.155249][ T3076] x8 : f9e48d8f2f176a00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 53.156631][ T3076] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.158005][ T3076] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 53.159376][ T3076] Call trace: [ 53.159922][ T3076] read_block_bitmap+0xec/0x224 [ 53.160754][ T3076] ext2_free_blocks+0x104/0x368 [ 53.161588][ T3076] __ext2_truncate_blocks+0x154/0x550 [ 53.162505][ T3076] ext2_write_failed+0xa4/0xc0 [ 53.163326][ T3076] ext2_write_begin+0x54/0x6c [ 53.164161][ T3076] generic_perform_write+0x80/0x1e4 [ 53.165081][ T3076] __generic_file_write_iter+0x7c/0xc0 [ 53.166073][ T3076] generic_file_write_iter+0x50/0xd4 [ 53.166960][ T3076] ext2_file_write_iter+0x10/0x1c [ 53.167970][ T3076] vfs_write+0x1ac/0x2c4 [ 53.168741][ T3076] __arm64_sys_pwrite64+0x84/0xc8 [ 53.169639][ T3076] invoke_syscall+0x40/0xdc [ 53.170406][ T3076] el0_svc_common+0xb0/0xe8 [ 53.171196][ T3076] do_el0_svc+0x24/0x80 [ 53.171911][ T3076] el0_svc+0x34/0xd4 [ 53.172593][ T3076] el0t_64_sync_handler+0x84/0xf0 [ 53.173454][ T3076] el0t_64_sync+0x18c/0x190 [ 53.174246][ T3076] ---[ end trace 0000000000000000 ]--- [ 53.178776][ T3078] loop2: detected capacity change from 0 to 512 [ 53.180038][ T3078] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 53.181205][ T3078] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 53.182405][ T3078] ext2 filesystem being mounted at /37/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.189518][ T3078] ------------[ cut here ]------------ [ 53.190458][ T3078] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.190470][ T3078] WARNING: CPU: 0 PID: 3078 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 53.193012][ T3078] Modules linked in: [ 53.193600][ T3078] CPU: 0 PID: 3078 Comm: syz.2.54 Tainted: G W syzkaller #0 [ 53.194912][ T3078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.196630][ T3078] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.198029][ T3078] pc : ext2_new_blocks+0x418/0x564 [ 53.198956][ T3078] lr : ext2_new_blocks+0x418/0x564 [ 53.199869][ T3078] sp : ffff80001285b8f0 [ 53.200633][ T3078] x29: ffff80001285b940 x28: 0000000000010000 x27: 0000000000000008 [ 53.202119][ T3078] x26: ffff0000cd5c5400 x25: 0000000000010000 x24: ffff80001285b9f4 [ 53.203727][ T3078] x23: ffff0000c5ec6000 x22: 0000000000000000 x21: ffff80001285b9f8 [ 53.205178][ T3078] x20: ffff0000c4fb3e80 x19: ffff0000c8e7f6b8 x18: ffff80000a3f7ee1 [ 53.206621][ T3078] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.208071][ T3078] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.209549][ T3078] x11: 00000000fffff876 x10: ffff80000a901be4 x9 : 2377d6fb9c498d00 [ 53.211011][ T3078] x8 : 2377d6fb9c498d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.212484][ T3078] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.213940][ T3078] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 53.215421][ T3078] Call trace: [ 53.216008][ T3078] ext2_new_blocks+0x418/0x564 [ 53.216863][ T3078] ext2_get_blocks+0x4b4/0x9b0 [ 53.217732][ T3078] ext2_get_block+0x58/0x158 [ 53.218575][ T3078] __block_write_begin_int+0x10c/0x6f0 [ 53.219584][ T3078] block_write_begin+0x5c/0xa4 [ 53.220467][ T3078] ext2_write_begin+0x40/0x6c [ 53.221344][ T3078] generic_perform_write+0x80/0x1e4 [ 53.222287][ T3078] __generic_file_write_iter+0x7c/0xc0 [ 53.223287][ T3078] generic_file_write_iter+0x50/0xd4 [ 53.224248][ T3078] ext2_file_write_iter+0x10/0x1c [ 53.225166][ T3078] vfs_write+0x1ac/0x2c4 [ 53.225935][ T3078] __arm64_sys_pwrite64+0x84/0xc8 [ 53.226854][ T3078] invoke_syscall+0x40/0xdc [ 53.227661][ T3078] el0_svc_common+0xb0/0xe8 [ 53.228475][ T3078] do_el0_svc+0x24/0x80 [ 53.229231][ T3078] el0_svc+0x34/0xd4 [ 53.229925][ T3078] el0t_64_sync_handler+0x84/0xf0 [ 53.230849][ T3078] el0t_64_sync+0x18c/0x190 [ 53.231681][ T3078] ---[ end trace 0000000000000000 ]--- [ 53.232970][ T3078] ------------[ cut here ]------------ [ 53.234082][ T3078] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 53.234097][ T3078] WARNING: CPU: 0 PID: 3078 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.236964][ T3078] Modules linked in: [ 53.237636][ T3078] CPU: 0 PID: 3078 Comm: syz.2.54 Tainted: G W syzkaller #0 [ 53.239159][ T3078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.240934][ T3078] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.242339][ T3078] pc : read_block_bitmap+0xec/0x224 [ 53.243227][ T3078] lr : read_block_bitmap+0xe8/0x224 [ 53.244095][ T3078] sp : ffff80001285ba50 [ 53.244804][ T3078] x29: ffff80001285ba50 x28: ffff0000c4151800 x27: 0000000000000000 [ 53.246205][ T3078] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 53.247604][ T3078] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 53.249025][ T3078] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 53.250464][ T3078] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.251897][ T3078] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.253313][ T3078] x11: 00000000fffff89e x10: ffff80000a901be4 x9 : 2377d6fb9c498d00 [ 53.254728][ T3078] x8 : 2377d6fb9c498d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.256125][ T3078] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.257513][ T3078] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.258907][ T3078] Call trace: [ 53.259511][ T3078] read_block_bitmap+0xec/0x224 [ 53.260342][ T3078] ext2_free_blocks+0x104/0x368 [ 53.261210][ T3078] __ext2_truncate_blocks+0xb8/0x550 [ 53.262121][ T3078] ext2_write_failed+0xa4/0xc0 [ 53.262928][ T3078] ext2_write_begin+0x54/0x6c [ 53.263714][ T3078] generic_perform_write+0x80/0x1e4 [ 53.264597][ T3078] __generic_file_write_iter+0x7c/0xc0 [ 53.265516][ T3078] generic_file_write_iter+0x50/0xd4 [ 53.266425][ T3078] ext2_file_write_iter+0x10/0x1c [ 53.267291][ T3078] vfs_write+0x1ac/0x2c4 [ 53.268027][ T3078] __arm64_sys_pwrite64+0x84/0xc8 [ 53.268926][ T3078] invoke_syscall+0x40/0xdc [ 53.269743][ T3078] el0_svc_common+0xb0/0xe8 [ 53.270516][ T3078] do_el0_svc+0x24/0x80 [ 53.271244][ T3078] el0_svc+0x34/0xd4 [ 53.271911][ T3078] el0t_64_sync_handler+0x84/0xf0 [ 53.272789][ T3078] el0t_64_sync+0x18c/0x190 [ 53.273572][ T3078] ---[ end trace 0000000000000000 ]--- [ 53.274818][ T3078] ------------[ cut here ]------------ [ 53.275702][ T3078] block_group >= groups_count - block_group = 3, groups_count = 1 [ 53.275710][ T3078] WARNING: CPU: 0 PID: 3078 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.278718][ T3078] Modules linked in: [ 53.279410][ T3078] CPU: 0 PID: 3078 Comm: syz.2.54 Tainted: G W syzkaller #0 [ 53.280979][ T3078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.282751][ T3078] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.284148][ T3078] pc : read_block_bitmap+0xec/0x224 [ 53.285083][ T3078] lr : read_block_bitmap+0xe8/0x224 [ 53.285965][ T3078] sp : ffff80001285ba50 [ 53.286683][ T3078] x29: ffff80001285ba50 x28: ffff0000c4151800 x27: 0000000000000000 [ 53.288063][ T3078] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 53.289476][ T3078] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 53.290940][ T3078] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 53.292440][ T3078] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.293851][ T3078] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.295247][ T3078] x11: 00000000fffff8c5 x10: ffff80000a901be4 x9 : 2377d6fb9c498d00 [ 53.296613][ T3078] x8 : 2377d6fb9c498d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.298011][ T3078] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.299457][ T3078] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.300859][ T3078] Call trace: [ 53.301468][ T3078] read_block_bitmap+0xec/0x224 [ 53.302329][ T3078] ext2_free_blocks+0x104/0x368 [ 53.303193][ T3078] __ext2_truncate_blocks+0xb8/0x550 [ 53.304139][ T3078] ext2_write_failed+0xa4/0xc0 [ 53.305010][ T3078] ext2_write_begin+0x54/0x6c [ 53.305844][ T3078] generic_perform_write+0x80/0x1e4 [ 53.306752][ T3078] __generic_file_write_iter+0x7c/0xc0 [ 53.307706][ T3078] generic_file_write_iter+0x50/0xd4 [ 53.308631][ T3078] ext2_file_write_iter+0x10/0x1c [ 53.309512][ T3078] vfs_write+0x1ac/0x2c4 [ 53.310271][ T3078] __arm64_sys_pwrite64+0x84/0xc8 [ 53.311153][ T3078] invoke_syscall+0x40/0xdc [ 53.311960][ T3078] el0_svc_common+0xb0/0xe8 [ 53.312770][ T3078] do_el0_svc+0x24/0x80 [ 53.313535][ T3078] el0_svc+0x34/0xd4 [ 53.314244][ T3078] el0t_64_sync_handler+0x84/0xf0 [ 53.315166][ T3078] el0t_64_sync+0x18c/0x190 [ 53.316009][ T3078] ---[ end trace 0000000000000000 ]--- [ 53.317066][ T3078] ------------[ cut here ]------------ [ 53.317937][ T3078] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.317950][ T3078] WARNING: CPU: 0 PID: 3078 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.320647][ T3078] Modules linked in: [ 53.321256][ T3078] CPU: 0 PID: 3078 Comm: syz.2.54 Tainted: G W syzkaller #0 [ 53.322588][ T3078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.324168][ T3078] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.325323][ T3078] pc : read_block_bitmap+0xec/0x224 [ 53.326223][ T3078] lr : read_block_bitmap+0xe8/0x224 [ 53.327141][ T3078] sp : ffff80001285ba50 [ 53.327851][ T3078] x29: ffff80001285ba50 x28: ffff0000c4151800 x27: 0000000000000000 [ 53.329264][ T3078] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 53.330735][ T3078] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 53.332126][ T3078] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 53.333648][ T3078] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.335084][ T3078] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.336485][ T3078] x11: 00000000fffff8ec x10: ffff80000a901be4 x9 : 2377d6fb9c498d00 [ 53.337923][ T3078] x8 : 2377d6fb9c498d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.339377][ T3078] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.340845][ T3078] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.342312][ T3078] Call trace: [ 53.342881][ T3078] read_block_bitmap+0xec/0x224 [ 53.343863][ T3078] ext2_free_blocks+0x104/0x368 [ 53.344806][ T3078] __ext2_truncate_blocks+0x154/0x550 [ 53.345787][ T3078] ext2_write_failed+0xa4/0xc0 [ 53.346639][ T3078] ext2_write_begin+0x54/0x6c [ 53.347490][ T3078] generic_perform_write+0x80/0x1e4 [ 53.348418][ T3078] __generic_file_write_iter+0x7c/0xc0 [ 53.349392][ T3078] generic_file_write_iter+0x50/0xd4 [ 53.350314][ T3078] ext2_file_write_iter+0x10/0x1c [ 53.351198][ T3078] vfs_write+0x1ac/0x2c4 [ 53.351958][ T3078] __arm64_sys_pwrite64+0x84/0xc8 [ 53.352892][ T3078] invoke_syscall+0x40/0xdc [ 53.353684][ T3078] el0_svc_common+0xb0/0xe8 [ 53.354455][ T3078] do_el0_svc+0x24/0x80 [ 53.355168][ T3078] el0_svc+0x34/0xd4 [ 53.355862][ T3078] el0t_64_sync_handler+0x84/0xf0 [ 53.356794][ T3078] el0t_64_sync+0x18c/0x190 [ 53.357596][ T3078] ---[ end trace 0000000000000000 ]--- [ 53.362606][ T3080] loop2: detected capacity change from 0 to 512 [ 53.364179][ T3080] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 53.365318][ T3080] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 53.366655][ T3080] ext2 filesystem being mounted at /38/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.370561][ T3080] ------------[ cut here ]------------ [ 53.371501][ T3080] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.371550][ T3080] WARNING: CPU: 0 PID: 3080 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 53.374720][ T3080] Modules linked in: [ 53.375431][ T3080] CPU: 0 PID: 3080 Comm: syz.2.55 Tainted: G W syzkaller #0 [ 53.376944][ T3080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.378690][ T3080] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.380080][ T3080] pc : ext2_new_blocks+0x418/0x564 [ 53.380986][ T3080] lr : ext2_new_blocks+0x418/0x564 [ 53.381884][ T3080] sp : ffff80001287b8f0 [ 53.382607][ T3080] x29: ffff80001287b940 x28: 0000000000010000 x27: 0000000000000008 [ 53.383997][ T3080] x26: ffff0000cd58c400 x25: 0000000000010000 x24: ffff80001287b9f4 [ 53.385378][ T3080] x23: ffff0000c5f3a000 x22: 0000000000000000 x21: ffff80001287b9f8 [ 53.386751][ T3080] x20: ffff0000c5e85980 x19: ffff0000c8e7f0d8 x18: 000000000008bc00 [ 53.388125][ T3080] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000030 [ 53.389457][ T3080] x14: 00000000000ffdd4 x13: 00000000023fb136 x12: ffff80000e90c000 [ 53.390829][ T3080] x11: 0000000000000003 x10: 00000000ffffffff x9 : dc4ae5ae874a8100 [ 53.392233][ T3080] x8 : dc4ae5ae874a8100 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 53.393639][ T3080] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.395016][ T3080] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 53.396422][ T3080] Call trace: [ 53.396987][ T3080] ext2_new_blocks+0x418/0x564 [ 53.397826][ T3080] ext2_get_blocks+0x4b4/0x9b0 [ 53.398679][ T3080] ext2_get_block+0x58/0x158 [ 53.399484][ T3080] __block_write_begin_int+0x10c/0x6f0 [ 53.400450][ T3080] block_write_begin+0x5c/0xa4 [ 53.401330][ T3080] ext2_write_begin+0x40/0x6c [ 53.402166][ T3080] generic_perform_write+0x80/0x1e4 [ 53.403075][ T3080] __generic_file_write_iter+0x7c/0xc0 [ 53.404022][ T3080] generic_file_write_iter+0x50/0xd4 [ 53.404948][ T3080] ext2_file_write_iter+0x10/0x1c [ 53.405816][ T3080] vfs_write+0x1ac/0x2c4 [ 53.406569][ T3080] __arm64_sys_pwrite64+0x84/0xc8 [ 53.407453][ T3080] invoke_syscall+0x40/0xdc [ 53.408295][ T3080] el0_svc_common+0xb0/0xe8 [ 53.409066][ T3080] do_el0_svc+0x24/0x80 [ 53.409779][ T3080] el0_svc+0x34/0xd4 [ 53.410460][ T3080] el0t_64_sync_handler+0x84/0xf0 [ 53.411329][ T3080] el0t_64_sync+0x18c/0x190 [ 53.412106][ T3080] ---[ end trace 0000000000000000 ]--- [ 53.413084][ T3080] ------------[ cut here ]------------ [ 53.413938][ T3080] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 53.413949][ T3080] WARNING: CPU: 0 PID: 3080 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.416827][ T3080] Modules linked in: [ 53.417525][ T3080] CPU: 0 PID: 3080 Comm: syz.2.55 Tainted: G W syzkaller #0 [ 53.419071][ T3080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.420864][ T3080] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.422295][ T3080] pc : read_block_bitmap+0xec/0x224 [ 53.423194][ T3080] lr : read_block_bitmap+0xe8/0x224 [ 53.424090][ T3080] sp : ffff80001287ba50 [ 53.424805][ T3080] x29: ffff80001287ba50 x28: ffff0000c5eea400 x27: 0000000000000000 [ 53.426210][ T3080] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 53.427639][ T3080] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 53.429028][ T3080] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 53.430440][ T3080] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.431844][ T3080] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.433232][ T3080] x11: 00000000fffff93f x10: ffff80000a901be4 x9 : dc4ae5ae874a8100 [ 53.434610][ T3080] x8 : dc4ae5ae874a8100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.436036][ T3080] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.437447][ T3080] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.438877][ T3080] Call trace: [ 53.439444][ T3080] read_block_bitmap+0xec/0x224 [ 53.440290][ T3080] ext2_free_blocks+0x104/0x368 [ 53.441138][ T3080] __ext2_truncate_blocks+0xb8/0x550 [ 53.442066][ T3080] ext2_write_failed+0xa4/0xc0 [ 53.442892][ T3080] ext2_write_begin+0x54/0x6c [ 53.443707][ T3080] generic_perform_write+0x80/0x1e4 [ 53.444615][ T3080] __generic_file_write_iter+0x7c/0xc0 [ 53.445628][ T3080] generic_file_write_iter+0x50/0xd4 [ 53.446575][ T3080] ext2_file_write_iter+0x10/0x1c [ 53.447472][ T3080] vfs_write+0x1ac/0x2c4 [ 53.448235][ T3080] __arm64_sys_pwrite64+0x84/0xc8 [ 53.449137][ T3080] invoke_syscall+0x40/0xdc [ 53.449940][ T3080] el0_svc_common+0xb0/0xe8 [ 53.450732][ T3080] do_el0_svc+0x24/0x80 [ 53.451454][ T3080] el0_svc+0x34/0xd4 [ 53.452130][ T3080] el0t_64_sync_handler+0x84/0xf0 [ 53.453020][ T3080] el0t_64_sync+0x18c/0x190 [ 53.453805][ T3080] ---[ end trace 0000000000000000 ]--- [ 53.454810][ T3080] ------------[ cut here ]------------ [ 53.455653][ T3080] block_group >= groups_count - block_group = 3, groups_count = 1 [ 53.455664][ T3080] WARNING: CPU: 0 PID: 3080 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.458597][ T3080] Modules linked in: [ 53.459266][ T3080] CPU: 0 PID: 3080 Comm: syz.2.55 Tainted: G W syzkaller #0 [ 53.460843][ T3080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.462630][ T3080] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.463996][ T3080] pc : read_block_bitmap+0xec/0x224 [ 53.464896][ T3080] lr : read_block_bitmap+0xe8/0x224 [ 53.465797][ T3080] sp : ffff80001287ba50 [ 53.466506][ T3080] x29: ffff80001287ba50 x28: ffff0000c5eea400 x27: 0000000000000000 [ 53.467905][ T3080] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 53.469312][ T3080] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 53.470710][ T3080] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 53.472133][ T3080] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.473526][ T3080] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.474930][ T3080] x11: 00000000fffff966 x10: c0000000fffff966 x9 : dc4ae5ae874a8100 [ 53.476329][ T3080] x8 : dc4ae5ae874a8100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.477722][ T3080] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.479109][ T3080] x2 : 0000000000000000 x1 : ffff80001287b7e0 x0 : 0000000000000000 [ 53.480507][ T3080] Call trace: [ 53.481101][ T3080] read_block_bitmap+0xec/0x224 [ 53.481934][ T3080] ext2_free_blocks+0x104/0x368 [ 53.482780][ T3080] __ext2_truncate_blocks+0xb8/0x550 [ 53.483711][ T3080] ext2_write_failed+0xa4/0xc0 [ 53.484524][ T3080] ext2_write_begin+0x54/0x6c [ 53.485339][ T3080] generic_perform_write+0x80/0x1e4 [ 53.486255][ T3080] __generic_file_write_iter+0x7c/0xc0 [ 53.487212][ T3080] generic_file_write_iter+0x50/0xd4 [ 53.488148][ T3080] ext2_file_write_iter+0x10/0x1c [ 53.489027][ T3080] vfs_write+0x1ac/0x2c4 [ 53.489773][ T3080] __arm64_sys_pwrite64+0x84/0xc8 [ 53.490652][ T3080] invoke_syscall+0x40/0xdc [ 53.491435][ T3080] el0_svc_common+0xb0/0xe8 [ 53.492227][ T3080] do_el0_svc+0x24/0x80 [ 53.492956][ T3080] el0_svc+0x34/0xd4 [ 53.493634][ T3080] el0t_64_sync_handler+0x84/0xf0 [ 53.494506][ T3080] el0t_64_sync+0x18c/0x190 [ 53.495287][ T3080] ---[ end trace 0000000000000000 ]--- [ 53.496378][ T3080] ------------[ cut here ]------------ [ 53.497214][ T3080] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.497227][ T3080] WARNING: CPU: 0 PID: 3080 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.500301][ T3080] Modules linked in: [ 53.501046][ T3080] CPU: 0 PID: 3080 Comm: syz.2.55 Tainted: G W syzkaller #0 [ 53.502594][ T3080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.504431][ T3080] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.505878][ T3080] pc : read_block_bitmap+0xec/0x224 [ 53.506810][ T3080] lr : read_block_bitmap+0xe8/0x224 [ 53.507701][ T3080] sp : ffff80001287ba50 [ 53.508415][ T3080] x29: ffff80001287ba50 x28: ffff0000c5eea400 x27: 0000000000000000 [ 53.509777][ T3080] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 53.511160][ T3080] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 53.512547][ T3080] x20: 0000000000000000 x19: ffff0000c5f3a000 x18: ffff80000a3f7ee1 [ 53.513957][ T3080] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.515396][ T3080] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.516834][ T3080] x11: 00000000fffff98d x10: ffff80000a901be4 x9 : dc4ae5ae874a8100 [ 53.518219][ T3080] x8 : dc4ae5ae874a8100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.519614][ T3080] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.521011][ T3080] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.522430][ T3080] Call trace: [ 53.522993][ T3080] read_block_bitmap+0xec/0x224 [ 53.523827][ T3080] ext2_free_blocks+0x104/0x368 [ 53.524664][ T3080] __ext2_truncate_blocks+0x154/0x550 [ 53.525597][ T3080] ext2_write_failed+0xa4/0xc0 [ 53.526423][ T3080] ext2_write_begin+0x54/0x6c [ 53.527243][ T3080] generic_perform_write+0x80/0x1e4 [ 53.528151][ T3080] __generic_file_write_iter+0x7c/0xc0 [ 53.529120][ T3080] generic_file_write_iter+0x50/0xd4 [ 53.530068][ T3080] ext2_file_write_iter+0x10/0x1c [ 53.530968][ T3080] vfs_write+0x1ac/0x2c4 [ 53.531710][ T3080] __arm64_sys_pwrite64+0x84/0xc8 [ 53.532603][ T3080] invoke_syscall+0x40/0xdc [ 53.533409][ T3080] el0_svc_common+0xb0/0xe8 [ 53.534205][ T3080] do_el0_svc+0x24/0x80 [ 53.534937][ T3080] el0_svc+0x34/0xd4 [ 53.535635][ T3080] el0t_64_sync_handler+0x84/0xf0 [ 53.536523][ T3080] el0t_64_sync+0x18c/0x190 [ 53.537325][ T3080] ---[ end trace 0000000000000000 ]--- [ 53.544276][ T3082] loop2: detected capacity change from 0 to 512 [ 53.547793][ T3082] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 53.549086][ T3082] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 53.550397][ T3082] ext2 filesystem being mounted at /39/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.554413][ T3082] ------------[ cut here ]------------ [ 53.555285][ T3082] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.555341][ T3082] WARNING: CPU: 0 PID: 3082 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 53.558311][ T3082] Modules linked in: [ 53.558985][ T3082] CPU: 0 PID: 3082 Comm: syz.2.56 Tainted: G W syzkaller #0 [ 53.560471][ T3082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.562221][ T3082] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.563576][ T3082] pc : ext2_new_blocks+0x418/0x564 [ 53.564449][ T3082] lr : ext2_new_blocks+0x418/0x564 [ 53.565315][ T3082] sp : ffff80001287b8f0 [ 53.566024][ T3082] x29: ffff80001287b940 x28: 0000000000010000 x27: 0000000000000008 [ 53.567396][ T3082] x26: ffff0000cd5d4400 x25: 0000000000010000 x24: ffff80001287b9f4 [ 53.568788][ T3082] x23: ffff0000c9cb6000 x22: 0000000000000000 x21: ffff80001287b9f8 [ 53.570180][ T3082] x20: ffff0000c5583100 x19: ffff0000c8e7cd98 x18: 0000000000091800 [ 53.571567][ T3082] x17: 0000000000000001 x16: 0000000000000000 x15: 000000000000008a [ 53.572990][ T3082] x14: 00000000000ffbf4 x13: 0000000002af44d8 x12: ffff80000e90c000 [ 53.574374][ T3082] x11: 0000000000000003 x10: 00000000ffffffff x9 : 2162fd0815a69d00 [ 53.575723][ T3082] x8 : 2162fd0815a69d00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 53.577091][ T3082] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.578498][ T3082] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 53.579938][ T3082] Call trace: [ 53.580533][ T3082] ext2_new_blocks+0x418/0x564 [ 53.581410][ T3082] ext2_get_blocks+0x4b4/0x9b0 [ 53.582276][ T3082] ext2_get_block+0x58/0x158 [ 53.583122][ T3082] __block_write_begin_int+0x10c/0x6f0 [ 53.584107][ T3082] block_write_begin+0x5c/0xa4 [ 53.584964][ T3082] ext2_write_begin+0x40/0x6c [ 53.585770][ T3082] generic_perform_write+0x80/0x1e4 [ 53.586664][ T3082] __generic_file_write_iter+0x7c/0xc0 [ 53.587636][ T3082] generic_file_write_iter+0x50/0xd4 [ 53.588587][ T3082] ext2_file_write_iter+0x10/0x1c [ 53.589488][ T3082] vfs_write+0x1ac/0x2c4 [ 53.590249][ T3082] __arm64_sys_pwrite64+0x84/0xc8 [ 53.591130][ T3082] invoke_syscall+0x40/0xdc [ 53.591891][ T3082] el0_svc_common+0xb0/0xe8 [ 53.592709][ T3082] do_el0_svc+0x24/0x80 [ 53.593435][ T3082] el0_svc+0x34/0xd4 [ 53.594108][ T3082] el0t_64_sync_handler+0x84/0xf0 [ 53.594982][ T3082] el0t_64_sync+0x18c/0x190 [ 53.595763][ T3082] ---[ end trace 0000000000000000 ]--- [ 53.596773][ T3082] ------------[ cut here ]------------ [ 53.597627][ T3082] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 53.597638][ T3082] WARNING: CPU: 0 PID: 3082 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.600196][ T3082] Modules linked in: [ 53.600751][ T3082] CPU: 0 PID: 3082 Comm: syz.2.56 Tainted: G W syzkaller #0 [ 53.602128][ T3082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.603681][ T3082] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.604960][ T3082] pc : read_block_bitmap+0xec/0x224 [ 53.605930][ T3082] lr : read_block_bitmap+0xe8/0x224 [ 53.606864][ T3082] sp : ffff80001287ba50 [ 53.607606][ T3082] x29: ffff80001287ba50 x28: ffff0000c5ee8400 x27: 0000000000000000 [ 53.609053][ T3082] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 53.610470][ T3082] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 53.611889][ T3082] x20: 0000000000000000 x19: ffff0000c9cb6000 x18: ffff80000a3f7ee1 [ 53.613298][ T3082] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.614712][ T3082] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.616112][ T3082] x11: 00000000fffff9e0 x10: ffff80000a901be4 x9 : 2162fd0815a69d00 [ 53.617522][ T3082] x8 : 2162fd0815a69d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.618953][ T3082] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.620374][ T3082] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.621805][ T3082] Call trace: [ 53.622377][ T3082] read_block_bitmap+0xec/0x224 [ 53.623236][ T3082] ext2_free_blocks+0x104/0x368 [ 53.624102][ T3082] __ext2_truncate_blocks+0xb8/0x550 [ 53.625076][ T3082] ext2_write_failed+0xa4/0xc0 [ 53.625941][ T3082] ext2_write_begin+0x54/0x6c [ 53.626755][ T3082] generic_perform_write+0x80/0x1e4 [ 53.627662][ T3082] __generic_file_write_iter+0x7c/0xc0 [ 53.628605][ T3082] generic_file_write_iter+0x50/0xd4 [ 53.629525][ T3082] ext2_file_write_iter+0x10/0x1c [ 53.630406][ T3082] vfs_write+0x1ac/0x2c4 [ 53.631164][ T3082] __arm64_sys_pwrite64+0x84/0xc8 [ 53.632026][ T3082] invoke_syscall+0x40/0xdc [ 53.632783][ T3082] el0_svc_common+0xb0/0xe8 [ 53.633566][ T3082] do_el0_svc+0x24/0x80 [ 53.634281][ T3082] el0_svc+0x34/0xd4 [ 53.634944][ T3082] el0t_64_sync_handler+0x84/0xf0 [ 53.635811][ T3082] el0t_64_sync+0x18c/0x190 [ 53.636562][ T3082] ---[ end trace 0000000000000000 ]--- [ 53.637557][ T3082] ------------[ cut here ]------------ [ 53.638346][ T3082] block_group >= groups_count - block_group = 3, groups_count = 1 [ 53.638368][ T3082] WARNING: CPU: 0 PID: 3082 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.640861][ T3082] Modules linked in: [ 53.641455][ T3082] CPU: 0 PID: 3082 Comm: syz.2.56 Tainted: G W syzkaller #0 [ 53.642721][ T3082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.644252][ T3082] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.645411][ T3082] pc : read_block_bitmap+0xec/0x224 [ 53.646280][ T3082] lr : read_block_bitmap+0xe8/0x224 [ 53.647162][ T3082] sp : ffff80001287ba50 [ 53.647868][ T3082] x29: ffff80001287ba50 x28: ffff0000c5ee8400 x27: 0000000000000000 [ 53.649272][ T3082] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 53.650675][ T3082] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 53.652083][ T3082] x20: 0000000000000000 x19: ffff0000c9cb6000 x18: 000000000009c000 [ 53.653451][ T3082] x17: 0000000000000001 x16: 0000000000000000 x15: 00000000000000eb [ 53.654829][ T3082] x14: 00000000000c11a7 x13: 0000000002a07184 x12: ffff80000e90c000 [ 53.656232][ T3082] x11: 0000000000000004 x10: 00000000ffffffff x9 : 2162fd0815a69d00 [ 53.657610][ T3082] x8 : 2162fd0815a69d00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 53.659018][ T3082] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.660405][ T3082] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 53.661806][ T3082] Call trace: [ 53.662388][ T3082] read_block_bitmap+0xec/0x224 [ 53.663259][ T3082] ext2_free_blocks+0x104/0x368 [ 53.664136][ T3082] __ext2_truncate_blocks+0xb8/0x550 [ 53.665088][ T3082] ext2_write_failed+0xa4/0xc0 [ 53.665934][ T3082] ext2_write_begin+0x54/0x6c [ 53.666778][ T3082] generic_perform_write+0x80/0x1e4 [ 53.667716][ T3082] __generic_file_write_iter+0x7c/0xc0 [ 53.668701][ T3082] generic_file_write_iter+0x50/0xd4 [ 53.669654][ T3082] ext2_file_write_iter+0x10/0x1c [ 53.670549][ T3082] vfs_write+0x1ac/0x2c4 [ 53.671344][ T3082] __arm64_sys_pwrite64+0x84/0xc8 [ 53.672272][ T3082] invoke_syscall+0x40/0xdc [ 53.673078][ T3082] el0_svc_common+0xb0/0xe8 [ 53.673888][ T3082] do_el0_svc+0x24/0x80 [ 53.674637][ T3082] el0_svc+0x34/0xd4 [ 53.675333][ T3082] el0t_64_sync_handler+0x84/0xf0 [ 53.676211][ T3082] el0t_64_sync+0x18c/0x190 [ 53.676977][ T3082] ---[ end trace 0000000000000000 ]--- [ 53.678135][ T3082] ------------[ cut here ]------------ [ 53.679019][ T3082] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.679034][ T3082] WARNING: CPU: 0 PID: 3082 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.681592][ T3082] Modules linked in: [ 53.682183][ T3082] CPU: 0 PID: 3082 Comm: syz.2.56 Tainted: G W syzkaller #0 [ 53.683496][ T3082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.685080][ T3082] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.686389][ T3082] pc : read_block_bitmap+0xec/0x224 [ 53.687303][ T3082] lr : read_block_bitmap+0xe8/0x224 [ 53.688171][ T3082] sp : ffff80001287ba50 [ 53.688865][ T3082] x29: ffff80001287ba50 x28: ffff0000c5ee8400 x27: 0000000000000000 [ 53.690264][ T3082] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 53.691652][ T3082] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 53.693038][ T3082] x20: 0000000000000000 x19: ffff0000c9cb6000 x18: ffff80000a3f7ee1 [ 53.694467][ T3082] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.695915][ T3082] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.697316][ T3082] x11: 00000000fffffa2e x10: ffff80000a901be4 x9 : 2162fd0815a69d00 [ 53.698728][ T3082] x8 : 2162fd0815a69d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.700145][ T3082] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.701559][ T3082] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.703017][ T3082] Call trace: [ 53.703596][ T3082] read_block_bitmap+0xec/0x224 [ 53.704437][ T3082] ext2_free_blocks+0x104/0x368 [ 53.705267][ T3082] __ext2_truncate_blocks+0x154/0x550 [ 53.706202][ T3082] ext2_write_failed+0xa4/0xc0 [ 53.707021][ T3082] ext2_write_begin+0x54/0x6c [ 53.707825][ T3082] generic_perform_write+0x80/0x1e4 [ 53.708709][ T3082] __generic_file_write_iter+0x7c/0xc0 [ 53.709653][ T3082] generic_file_write_iter+0x50/0xd4 [ 53.710589][ T3082] ext2_file_write_iter+0x10/0x1c [ 53.711468][ T3082] vfs_write+0x1ac/0x2c4 [ 53.712206][ T3082] __arm64_sys_pwrite64+0x84/0xc8 [ 53.713122][ T3082] invoke_syscall+0x40/0xdc [ 53.713921][ T3082] el0_svc_common+0xb0/0xe8 [ 53.714713][ T3082] do_el0_svc+0x24/0x80 [ 53.715440][ T3082] el0_svc+0x34/0xd4 [ 53.716159][ T3082] el0t_64_sync_handler+0x84/0xf0 [ 53.717035][ T3082] el0t_64_sync+0x18c/0x190 [ 53.717824][ T3082] ---[ end trace 0000000000000000 ]--- [ 53.727664][ T3084] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 53.729167][ T3084] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 53.730605][ T3084] ext2 filesystem being mounted at /40/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.739693][ T3084] ------------[ cut here ]------------ [ 53.740682][ T3084] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.740696][ T3084] WARNING: CPU: 0 PID: 3084 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 53.743199][ T3084] Modules linked in: [ 53.743786][ T3084] CPU: 0 PID: 3084 Comm: syz.2.57 Tainted: G W syzkaller #0 [ 53.745102][ T3084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.746816][ T3084] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.748245][ T3084] pc : ext2_new_blocks+0x418/0x564 [ 53.749117][ T3084] lr : ext2_new_blocks+0x418/0x564 [ 53.749999][ T3084] sp : ffff8000128838f0 [ 53.750710][ T3084] x29: ffff800012883940 x28: 0000000000010000 x27: 0000000000000008 [ 53.752094][ T3084] x26: ffff0000cd55f400 x25: 0000000000010000 x24: ffff8000128839f4 [ 53.753536][ T3084] x23: ffff0000c5ec1000 x22: 0000000000000000 x21: ffff8000128839f8 [ 53.754915][ T3084] x20: ffff0000c5583c80 x19: ffff0000c8e7eaf8 x18: ffff80000a3f7ee1 [ 53.756271][ T3084] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.757619][ T3084] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.759000][ T3084] x11: 00000000fffffa58 x10: ffff80000a901be4 x9 : d99fe789e7a97100 [ 53.760447][ T3084] x8 : d99fe789e7a97100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.761801][ T3084] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.763194][ T3084] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 53.764582][ T3084] Call trace: [ 53.765136][ T3084] ext2_new_blocks+0x418/0x564 [ 53.765950][ T3084] ext2_get_blocks+0x4b4/0x9b0 [ 53.766773][ T3084] ext2_get_block+0x58/0x158 [ 53.767594][ T3084] __block_write_begin_int+0x10c/0x6f0 [ 53.768534][ T3084] block_write_begin+0x5c/0xa4 [ 53.769362][ T3084] ext2_write_begin+0x40/0x6c [ 53.770185][ T3084] generic_perform_write+0x80/0x1e4 [ 53.771081][ T3084] __generic_file_write_iter+0x7c/0xc0 [ 53.772018][ T3084] generic_file_write_iter+0x50/0xd4 [ 53.772933][ T3084] ext2_file_write_iter+0x10/0x1c [ 53.773803][ T3084] vfs_write+0x1ac/0x2c4 [ 53.774560][ T3084] __arm64_sys_pwrite64+0x84/0xc8 [ 53.775455][ T3084] invoke_syscall+0x40/0xdc [ 53.776231][ T3084] el0_svc_common+0xb0/0xe8 [ 53.777019][ T3084] do_el0_svc+0x24/0x80 [ 53.777785][ T3084] el0_svc+0x34/0xd4 [ 53.778459][ T3084] el0t_64_sync_handler+0x84/0xf0 [ 53.779340][ T3084] el0t_64_sync+0x18c/0x190 [ 53.780140][ T3084] ---[ end trace 0000000000000000 ]--- [ 53.781378][ T3084] ------------[ cut here ]------------ [ 53.782260][ T3084] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 53.782274][ T3084] WARNING: CPU: 0 PID: 3084 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.785103][ T3084] Modules linked in: [ 53.785753][ T3084] CPU: 0 PID: 3084 Comm: syz.2.57 Tainted: G W syzkaller #0 [ 53.787381][ T3084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.789318][ T3084] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.790736][ T3084] pc : read_block_bitmap+0xec/0x224 [ 53.791677][ T3084] lr : read_block_bitmap+0xe8/0x224 [ 53.792607][ T3084] sp : ffff800012883a50 [ 53.793347][ T3084] x29: ffff800012883a50 x28: ffff0000c4153000 x27: 0000000000000000 [ 53.794821][ T3084] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 53.796278][ T3084] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 53.797742][ T3084] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 53.799227][ T3084] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.800691][ T3084] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.802138][ T3084] x11: 00000000fffffa80 x10: ffff80000a901be4 x9 : d99fe789e7a97100 [ 53.803581][ T3084] x8 : d99fe789e7a97100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.805034][ T3084] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.806485][ T3084] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.807942][ T3084] Call trace: [ 53.808522][ T3084] read_block_bitmap+0xec/0x224 [ 53.809390][ T3084] ext2_free_blocks+0x104/0x368 [ 53.810248][ T3084] __ext2_truncate_blocks+0xb8/0x550 [ 53.811210][ T3084] ext2_write_failed+0xa4/0xc0 [ 53.812065][ T3084] ext2_write_begin+0x54/0x6c [ 53.812912][ T3084] generic_perform_write+0x80/0x1e4 [ 53.813831][ T3084] __generic_file_write_iter+0x7c/0xc0 [ 53.814789][ T3084] generic_file_write_iter+0x50/0xd4 [ 53.815739][ T3084] ext2_file_write_iter+0x10/0x1c [ 53.816631][ T3084] vfs_write+0x1ac/0x2c4 [ 53.817356][ T3084] __arm64_sys_pwrite64+0x84/0xc8 [ 53.818243][ T3084] invoke_syscall+0x40/0xdc [ 53.819043][ T3084] el0_svc_common+0xb0/0xe8 [ 53.819829][ T3084] do_el0_svc+0x24/0x80 [ 53.820543][ T3084] el0_svc+0x34/0xd4 [ 53.821211][ T3084] el0t_64_sync_handler+0x84/0xf0 [ 53.822086][ T3084] el0t_64_sync+0x18c/0x190 [ 53.822872][ T3084] ---[ end trace 0000000000000000 ]--- [ 53.823951][ T3084] ------------[ cut here ]------------ [ 53.824751][ T3084] block_group >= groups_count - block_group = 3, groups_count = 1 [ 53.824762][ T3084] WARNING: CPU: 0 PID: 3084 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.827738][ T3084] Modules linked in: [ 53.828405][ T3084] CPU: 0 PID: 3084 Comm: syz.2.57 Tainted: G W syzkaller #0 [ 53.829958][ T3084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.831831][ T3084] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.833244][ T3084] pc : read_block_bitmap+0xec/0x224 [ 53.834143][ T3084] lr : read_block_bitmap+0xe8/0x224 [ 53.835079][ T3084] sp : ffff800012883a50 [ 53.835800][ T3084] x29: ffff800012883a50 x28: ffff0000c4153000 x27: 0000000000000000 [ 53.837210][ T3084] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 53.838590][ T3084] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 53.839999][ T3084] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 53.841413][ T3084] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.842843][ T3084] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.844260][ T3084] x11: 00000000fffffaa7 x10: ffff80000a901be4 x9 : d99fe789e7a97100 [ 53.845647][ T3084] x8 : d99fe789e7a97100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.847040][ T3084] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.848474][ T3084] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.849847][ T3084] Call trace: [ 53.850417][ T3084] read_block_bitmap+0xec/0x224 [ 53.851246][ T3084] ext2_free_blocks+0x104/0x368 [ 53.852055][ T3084] __ext2_truncate_blocks+0xb8/0x550 [ 53.852933][ T3084] ext2_write_failed+0xa4/0xc0 [ 53.853727][ T3084] ext2_write_begin+0x54/0x6c [ 53.854541][ T3084] generic_perform_write+0x80/0x1e4 [ 53.855439][ T3084] __generic_file_write_iter+0x7c/0xc0 [ 53.856397][ T3084] generic_file_write_iter+0x50/0xd4 [ 53.857300][ T3084] ext2_file_write_iter+0x10/0x1c [ 53.858173][ T3084] vfs_write+0x1ac/0x2c4 [ 53.858903][ T3084] __arm64_sys_pwrite64+0x84/0xc8 [ 53.859780][ T3084] invoke_syscall+0x40/0xdc [ 53.860579][ T3084] el0_svc_common+0xb0/0xe8 [ 53.861372][ T3084] do_el0_svc+0x24/0x80 [ 53.862097][ T3084] el0_svc+0x34/0xd4 [ 53.862768][ T3084] el0t_64_sync_handler+0x84/0xf0 [ 53.863629][ T3084] el0t_64_sync+0x18c/0x190 [ 53.864423][ T3084] ---[ end trace 0000000000000000 ]--- [ 53.865548][ T3084] ------------[ cut here ]------------ [ 53.866654][ T3084] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.866664][ T3084] WARNING: CPU: 0 PID: 3084 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.869407][ T3084] Modules linked in: [ 53.870027][ T3084] CPU: 0 PID: 3084 Comm: syz.2.57 Tainted: G W syzkaller #0 [ 53.871401][ T3084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.872997][ T3084] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.874209][ T3084] pc : read_block_bitmap+0xec/0x224 [ 53.875006][ T3084] lr : read_block_bitmap+0xe8/0x224 [ 53.875894][ T3084] sp : ffff800012883a50 [ 53.876653][ T3084] x29: ffff800012883a50 x28: ffff0000c4153000 x27: 0000000000000000 [ 53.878221][ T3084] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 53.879726][ T3084] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 53.881209][ T3084] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 53.882668][ T3084] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.884141][ T3084] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.885590][ T3084] x11: 00000000ffffface x10: ffff80000a901be4 x9 : d99fe789e7a97100 [ 53.887078][ T3084] x8 : d99fe789e7a97100 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.888524][ T3084] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.889974][ T3084] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.891378][ T3084] Call trace: [ 53.891951][ T3084] read_block_bitmap+0xec/0x224 [ 53.892812][ T3084] ext2_free_blocks+0x104/0x368 [ 53.893661][ T3084] __ext2_truncate_blocks+0x154/0x550 [ 53.894604][ T3084] ext2_write_failed+0xa4/0xc0 [ 53.895486][ T3084] ext2_write_begin+0x54/0x6c [ 53.896308][ T3084] generic_perform_write+0x80/0x1e4 [ 53.897224][ T3084] __generic_file_write_iter+0x7c/0xc0 [ 53.898201][ T3084] generic_file_write_iter+0x50/0xd4 [ 53.899120][ T3084] ext2_file_write_iter+0x10/0x1c [ 53.900019][ T3084] vfs_write+0x1ac/0x2c4 [ 53.900766][ T3084] __arm64_sys_pwrite64+0x84/0xc8 [ 53.901647][ T3084] invoke_syscall+0x40/0xdc [ 53.902439][ T3084] el0_svc_common+0xb0/0xe8 [ 53.903261][ T3084] do_el0_svc+0x24/0x80 [ 53.904009][ T3084] el0_svc+0x34/0xd4 [ 53.904705][ T3084] el0t_64_sync_handler+0x84/0xf0 [ 53.905609][ T3084] el0t_64_sync+0x18c/0x190 [ 53.906432][ T3084] ---[ end trace 0000000000000000 ]--- [ 53.917153][ T3086] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 53.918411][ T3086] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 53.919624][ T3086] ext2 filesystem being mounted at /41/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.923593][ T3086] ------------[ cut here ]------------ [ 53.924503][ T3086] block_group >= groups_count - block_group = 7, groups_count = 1 [ 53.924548][ T3086] WARNING: CPU: 0 PID: 3086 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 53.927554][ T3086] Modules linked in: [ 53.928246][ T3086] CPU: 0 PID: 3086 Comm: syz.2.58 Tainted: G W syzkaller #0 [ 53.929752][ T3086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.931543][ T3086] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.932954][ T3086] pc : ext2_new_blocks+0x418/0x564 [ 53.933892][ T3086] lr : ext2_new_blocks+0x418/0x564 [ 53.934792][ T3086] sp : ffff8000128838f0 [ 53.935508][ T3086] x29: ffff800012883940 x28: 0000000000010000 x27: 0000000000000008 [ 53.936910][ T3086] x26: ffff0000cd5e5400 x25: 0000000000010000 x24: ffff8000128839f4 [ 53.938324][ T3086] x23: ffff0000c5ec5000 x22: 0000000000000000 x21: ffff8000128839f8 [ 53.939755][ T3086] x20: ffff0000c4fdb300 x19: ffff0000c8e7d378 x18: 0000000000000000 [ 53.941157][ T3086] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 53.942553][ T3086] x14: 00000000000fdb3c x13: 0000000002e08358 x12: ffff80000e90c000 [ 53.943956][ T3086] x11: 0000000000000003 x10: 00000000ffffffff x9 : 94b02e3713700600 [ 53.945360][ T3086] x8 : 94b02e3713700600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 53.946748][ T3086] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.948167][ T3086] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 53.949582][ T3086] Call trace: [ 53.950152][ T3086] ext2_new_blocks+0x418/0x564 [ 53.950984][ T3086] ext2_get_blocks+0x4b4/0x9b0 [ 53.951814][ T3086] ext2_get_block+0x58/0x158 [ 53.952621][ T3086] __block_write_begin_int+0x10c/0x6f0 [ 53.953586][ T3086] block_write_begin+0x5c/0xa4 [ 53.954436][ T3086] ext2_write_begin+0x40/0x6c [ 53.955268][ T3086] generic_perform_write+0x80/0x1e4 [ 53.956177][ T3086] __generic_file_write_iter+0x7c/0xc0 [ 53.957146][ T3086] generic_file_write_iter+0x50/0xd4 [ 53.958062][ T3086] ext2_file_write_iter+0x10/0x1c [ 53.958927][ T3086] vfs_write+0x1ac/0x2c4 [ 53.959663][ T3086] __arm64_sys_pwrite64+0x84/0xc8 [ 53.960524][ T3086] invoke_syscall+0x40/0xdc [ 53.961337][ T3086] el0_svc_common+0xb0/0xe8 [ 53.962124][ T3086] do_el0_svc+0x24/0x80 [ 53.962848][ T3086] el0_svc+0x34/0xd4 [ 53.963529][ T3086] el0t_64_sync_handler+0x84/0xf0 [ 53.964392][ T3086] el0t_64_sync+0x18c/0x190 [ 53.965196][ T3086] ---[ end trace 0000000000000000 ]--- [ 53.966219][ T3086] ------------[ cut here ]------------ [ 53.967049][ T3086] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 53.967063][ T3086] WARNING: CPU: 0 PID: 3086 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 53.969766][ T3086] Modules linked in: [ 53.970346][ T3086] CPU: 0 PID: 3086 Comm: syz.2.58 Tainted: G W syzkaller #0 [ 53.971702][ T3086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.973271][ T3086] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.974571][ T3086] pc : read_block_bitmap+0xec/0x224 [ 53.975473][ T3086] lr : read_block_bitmap+0xe8/0x224 [ 53.976402][ T3086] sp : ffff800012883a50 [ 53.977130][ T3086] x29: ffff800012883a50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 53.978521][ T3086] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 53.979910][ T3086] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 53.981362][ T3086] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 53.982752][ T3086] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 53.984166][ T3086] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 53.985627][ T3086] x11: 00000000fffffb20 x10: ffff80000a901be4 x9 : 94b02e3713700600 [ 53.987087][ T3086] x8 : 94b02e3713700600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 53.988508][ T3086] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 53.989956][ T3086] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 53.991446][ T3086] Call trace: [ 53.992047][ T3086] read_block_bitmap+0xec/0x224 [ 53.992919][ T3086] ext2_free_blocks+0x104/0x368 [ 53.993794][ T3086] __ext2_truncate_blocks+0xb8/0x550 [ 53.994758][ T3086] ext2_write_failed+0xa4/0xc0 [ 53.995627][ T3086] ext2_write_begin+0x54/0x6c [ 53.996476][ T3086] generic_perform_write+0x80/0x1e4 [ 53.997416][ T3086] __generic_file_write_iter+0x7c/0xc0 [ 53.998414][ T3086] generic_file_write_iter+0x50/0xd4 [ 53.999383][ T3086] ext2_file_write_iter+0x10/0x1c [ 54.000260][ T3086] vfs_write+0x1ac/0x2c4 [ 54.001035][ T3086] __arm64_sys_pwrite64+0x84/0xc8 [ 54.001948][ T3086] invoke_syscall+0x40/0xdc [ 54.002720][ T3086] el0_svc_common+0xb0/0xe8 [ 54.003515][ T3086] do_el0_svc+0x24/0x80 [ 54.004249][ T3086] el0_svc+0x34/0xd4 [ 54.004937][ T3086] el0t_64_sync_handler+0x84/0xf0 [ 54.005844][ T3086] el0t_64_sync+0x18c/0x190 [ 54.006619][ T3086] ---[ end trace 0000000000000000 ]--- [ 54.007633][ T3086] ------------[ cut here ]------------ [ 54.008532][ T3086] block_group >= groups_count - block_group = 3, groups_count = 1 [ 54.008545][ T3086] WARNING: CPU: 0 PID: 3086 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.011531][ T3086] Modules linked in: [ 54.012205][ T3086] CPU: 0 PID: 3086 Comm: syz.2.58 Tainted: G W syzkaller #0 [ 54.013796][ T3086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.015644][ T3086] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.017026][ T3086] pc : read_block_bitmap+0xec/0x224 [ 54.017903][ T3086] lr : read_block_bitmap+0xe8/0x224 [ 54.018816][ T3086] sp : ffff800012883a50 [ 54.019543][ T3086] x29: ffff800012883a50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 54.020916][ T3086] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 54.022304][ T3086] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 54.023692][ T3086] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 54.025122][ T3086] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.026522][ T3086] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.027911][ T3086] x11: 00000000fffffb47 x10: ffff80000a901be4 x9 : 94b02e3713700600 [ 54.029327][ T3086] x8 : 94b02e3713700600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.030713][ T3086] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.032125][ T3086] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.033545][ T3086] Call trace: [ 54.034122][ T3086] read_block_bitmap+0xec/0x224 [ 54.034985][ T3086] ext2_free_blocks+0x104/0x368 [ 54.035814][ T3086] __ext2_truncate_blocks+0xb8/0x550 [ 54.036739][ T3086] ext2_write_failed+0xa4/0xc0 [ 54.037585][ T3086] ext2_write_begin+0x54/0x6c [ 54.038390][ T3086] generic_perform_write+0x80/0x1e4 [ 54.039284][ T3086] __generic_file_write_iter+0x7c/0xc0 [ 54.040202][ T3086] generic_file_write_iter+0x50/0xd4 [ 54.041088][ T3086] ext2_file_write_iter+0x10/0x1c [ 54.041930][ T3086] vfs_write+0x1ac/0x2c4 [ 54.042638][ T3086] __arm64_sys_pwrite64+0x84/0xc8 [ 54.043504][ T3086] invoke_syscall+0x40/0xdc [ 54.044299][ T3086] el0_svc_common+0xb0/0xe8 [ 54.045079][ T3086] do_el0_svc+0x24/0x80 [ 54.045783][ T3086] el0_svc+0x34/0xd4 [ 54.046452][ T3086] el0t_64_sync_handler+0x84/0xf0 [ 54.047326][ T3086] el0t_64_sync+0x18c/0x190 [ 54.048101][ T3086] ---[ end trace 0000000000000000 ]--- [ 54.049059][ T3086] ------------[ cut here ]------------ [ 54.049936][ T3086] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.049947][ T3086] WARNING: CPU: 0 PID: 3086 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.052921][ T3086] Modules linked in: [ 54.053639][ T3086] CPU: 0 PID: 3086 Comm: syz.2.58 Tainted: G W syzkaller #0 [ 54.055190][ T3086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.057013][ T3086] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.058426][ T3086] pc : read_block_bitmap+0xec/0x224 [ 54.059327][ T3086] lr : read_block_bitmap+0xe8/0x224 [ 54.060258][ T3086] sp : ffff800012883a50 [ 54.061003][ T3086] x29: ffff800012883a50 x28: ffff0000c4150c00 x27: 0000000000000000 [ 54.062445][ T3086] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 54.063886][ T3086] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 54.065337][ T3086] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 54.066768][ T3086] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.068225][ T3086] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.069661][ T3086] x11: 00000000fffffb6e x10: ffff80000a901be4 x9 : 94b02e3713700600 [ 54.071098][ T3086] x8 : 94b02e3713700600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.072544][ T3086] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.073988][ T3086] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.075472][ T3086] Call trace: [ 54.076038][ T3086] read_block_bitmap+0xec/0x224 [ 54.076914][ T3086] ext2_free_blocks+0x104/0x368 [ 54.077765][ T3086] __ext2_truncate_blocks+0x154/0x550 [ 54.078714][ T3086] ext2_write_failed+0xa4/0xc0 [ 54.079534][ T3086] ext2_write_begin+0x54/0x6c [ 54.080332][ T3086] generic_perform_write+0x80/0x1e4 [ 54.081226][ T3086] __generic_file_write_iter+0x7c/0xc0 [ 54.082165][ T3086] generic_file_write_iter+0x50/0xd4 [ 54.083076][ T3086] ext2_file_write_iter+0x10/0x1c [ 54.083939][ T3086] vfs_write+0x1ac/0x2c4 [ 54.084671][ T3086] __arm64_sys_pwrite64+0x84/0xc8 [ 54.085557][ T3086] invoke_syscall+0x40/0xdc [ 54.086351][ T3086] el0_svc_common+0xb0/0xe8 [ 54.087141][ T3086] do_el0_svc+0x24/0x80 [ 54.087867][ T3086] el0_svc+0x34/0xd4 [ 54.088552][ T3086] el0t_64_sync_handler+0x84/0xf0 [ 54.089442][ T3086] el0t_64_sync+0x18c/0x190 [ 54.090238][ T3086] ---[ end trace 0000000000000000 ]--- [ 54.096487][ T3088] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 54.097696][ T3088] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 54.098890][ T3088] ext2 filesystem being mounted at /42/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 54.107504][ T3088] ------------[ cut here ]------------ [ 54.108302][ T3088] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.108317][ T3088] WARNING: CPU: 0 PID: 3088 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 54.110878][ T3088] Modules linked in: [ 54.111476][ T3088] CPU: 0 PID: 3088 Comm: syz.2.59 Tainted: G W syzkaller #0 [ 54.112887][ T3088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.114503][ T3088] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.115695][ T3088] pc : ext2_new_blocks+0x418/0x564 [ 54.116567][ T3088] lr : ext2_new_blocks+0x418/0x564 [ 54.117443][ T3088] sp : ffff8000128838f0 [ 54.118148][ T3088] x29: ffff800012883940 x28: 0000000000010000 x27: 0000000000000008 [ 54.119540][ T3088] x26: ffff0000cd5e8400 x25: 0000000000010000 x24: ffff8000128839f4 [ 54.120878][ T3088] x23: ffff0000c9cb7000 x22: 0000000000000000 x21: ffff8000128839f8 [ 54.122321][ T3088] x20: ffff0000c4fdb200 x19: ffff0000c8e7df38 x18: ffff80000a3f7ee1 [ 54.123738][ T3088] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.125136][ T3088] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.126570][ T3088] x11: 00000000fffffb98 x10: ffff80000a901be4 x9 : 0be2588061007000 [ 54.127964][ T3088] x8 : 0be2588061007000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.129395][ T3088] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.130815][ T3088] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 54.132263][ T3088] Call trace: [ 54.132822][ T3088] ext2_new_blocks+0x418/0x564 [ 54.133645][ T3088] ext2_get_blocks+0x4b4/0x9b0 [ 54.134440][ T3088] ext2_get_block+0x58/0x158 [ 54.135268][ T3088] __block_write_begin_int+0x10c/0x6f0 [ 54.136244][ T3088] block_write_begin+0x5c/0xa4 [ 54.137089][ T3088] ext2_write_begin+0x40/0x6c [ 54.137907][ T3088] generic_perform_write+0x80/0x1e4 [ 54.138829][ T3088] __generic_file_write_iter+0x7c/0xc0 [ 54.139770][ T3088] generic_file_write_iter+0x50/0xd4 [ 54.140679][ T3088] ext2_file_write_iter+0x10/0x1c [ 54.141541][ T3088] vfs_write+0x1ac/0x2c4 [ 54.142256][ T3088] __arm64_sys_pwrite64+0x84/0xc8 [ 54.143108][ T3088] invoke_syscall+0x40/0xdc [ 54.143871][ T3088] el0_svc_common+0xb0/0xe8 [ 54.144655][ T3088] do_el0_svc+0x24/0x80 [ 54.145385][ T3088] el0_svc+0x34/0xd4 [ 54.146110][ T3088] el0t_64_sync_handler+0x84/0xf0 [ 54.146972][ T3088] el0t_64_sync+0x18c/0x190 [ 54.147736][ T3088] ---[ end trace 0000000000000000 ]--- [ 54.148775][ T3088] ------------[ cut here ]------------ [ 54.149783][ T3088] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 54.149863][ T3088] WARNING: CPU: 0 PID: 3088 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.152864][ T3088] Modules linked in: [ 54.153525][ T3088] CPU: 0 PID: 3088 Comm: syz.2.59 Tainted: G W syzkaller #0 [ 54.154914][ T3088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.156673][ T3088] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.158064][ T3088] pc : read_block_bitmap+0xec/0x224 [ 54.158993][ T3088] lr : read_block_bitmap+0xe8/0x224 [ 54.159897][ T3088] sp : ffff800012883a50 [ 54.160615][ T3088] x29: ffff800012883a50 x28: ffff0000c5eebc00 x27: 0000000000000000 [ 54.162038][ T3088] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 54.163421][ T3088] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 54.164841][ T3088] x20: 0000000000000000 x19: ffff0000c9cb7000 x18: 0000000000000000 [ 54.166248][ T3088] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 54.167697][ T3088] x14: 00000000000f9539 x13: 00000000028462f5 x12: ffff80000e90c000 [ 54.169138][ T3088] x11: 0000000000000004 x10: 00000000ffffffff x9 : 0be2588061007000 [ 54.170599][ T3088] x8 : 0be2588061007000 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 54.172017][ T3088] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.173480][ T3088] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 54.174890][ T3088] Call trace: [ 54.175475][ T3088] read_block_bitmap+0xec/0x224 [ 54.176353][ T3088] ext2_free_blocks+0x104/0x368 [ 54.177213][ T3088] __ext2_truncate_blocks+0xb8/0x550 [ 54.178157][ T3088] ext2_write_failed+0xa4/0xc0 [ 54.179011][ T3088] ext2_write_begin+0x54/0x6c [ 54.179838][ T3088] generic_perform_write+0x80/0x1e4 [ 54.180748][ T3088] __generic_file_write_iter+0x7c/0xc0 [ 54.181703][ T3088] generic_file_write_iter+0x50/0xd4 [ 54.182638][ T3088] ext2_file_write_iter+0x10/0x1c [ 54.183510][ T3088] vfs_write+0x1ac/0x2c4 [ 54.184252][ T3088] __arm64_sys_pwrite64+0x84/0xc8 [ 54.185195][ T3088] invoke_syscall+0x40/0xdc [ 54.185995][ T3088] el0_svc_common+0xb0/0xe8 [ 54.186790][ T3088] do_el0_svc+0x24/0x80 [ 54.187510][ T3088] el0_svc+0x34/0xd4 [ 54.188189][ T3088] el0t_64_sync_handler+0x84/0xf0 [ 54.189087][ T3088] el0t_64_sync+0x18c/0x190 [ 54.189882][ T3088] ---[ end trace 0000000000000000 ]--- [ 54.190886][ T3088] ------------[ cut here ]------------ [ 54.191766][ T3088] block_group >= groups_count - block_group = 3, groups_count = 1 [ 54.191789][ T3088] WARNING: CPU: 0 PID: 3088 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.194789][ T3088] Modules linked in: [ 54.195466][ T3088] CPU: 0 PID: 3088 Comm: syz.2.59 Tainted: G W syzkaller #0 [ 54.197067][ T3088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.198886][ T3088] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.200286][ T3088] pc : read_block_bitmap+0xec/0x224 [ 54.201199][ T3088] lr : read_block_bitmap+0xe8/0x224 [ 54.202138][ T3088] sp : ffff800012883a50 [ 54.202881][ T3088] x29: ffff800012883a50 x28: ffff0000c5eebc00 x27: 0000000000000000 [ 54.204322][ T3088] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 54.205749][ T3088] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 54.207207][ T3088] x20: 0000000000000000 x19: ffff0000c9cb7000 x18: 0000000000000000 [ 54.208636][ T3088] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 54.210104][ T3088] x14: 00000000000b8d16 x13: 0000000002b0b9e8 x12: ffff80000e90c000 [ 54.211542][ T3088] x11: 0000000000000004 x10: 00000000ffffffff x9 : 0be2588061007000 [ 54.212968][ T3088] x8 : 0be2588061007000 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 54.214399][ T3088] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.215815][ T3088] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 54.217246][ T3088] Call trace: [ 54.217801][ T3088] read_block_bitmap+0xec/0x224 [ 54.218652][ T3088] ext2_free_blocks+0x104/0x368 [ 54.219521][ T3088] __ext2_truncate_blocks+0xb8/0x550 [ 54.220420][ T3088] ext2_write_failed+0xa4/0xc0 [ 54.221232][ T3088] ext2_write_begin+0x54/0x6c [ 54.222034][ T3088] generic_perform_write+0x80/0x1e4 [ 54.222938][ T3088] __generic_file_write_iter+0x7c/0xc0 [ 54.223895][ T3088] generic_file_write_iter+0x50/0xd4 [ 54.224853][ T3088] ext2_file_write_iter+0x10/0x1c [ 54.225759][ T3088] vfs_write+0x1ac/0x2c4 [ 54.226511][ T3088] __arm64_sys_pwrite64+0x84/0xc8 [ 54.227396][ T3088] invoke_syscall+0x40/0xdc [ 54.228213][ T3088] el0_svc_common+0xb0/0xe8 [ 54.229023][ T3088] do_el0_svc+0x24/0x80 [ 54.229771][ T3088] el0_svc+0x34/0xd4 [ 54.230469][ T3088] el0t_64_sync_handler+0x84/0xf0 [ 54.231407][ T3088] el0t_64_sync+0x18c/0x190 [ 54.232234][ T3088] ---[ end trace 0000000000000000 ]--- [ 54.233247][ T3088] ------------[ cut here ]------------ [ 54.234105][ T3088] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.234116][ T3088] WARNING: CPU: 0 PID: 3088 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.237083][ T3088] Modules linked in: [ 54.237739][ T3088] CPU: 0 PID: 3088 Comm: syz.2.59 Tainted: G W syzkaller #0 [ 54.239196][ T3088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.240959][ T3088] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.242320][ T3088] pc : read_block_bitmap+0xec/0x224 [ 54.243227][ T3088] lr : read_block_bitmap+0xe8/0x224 [ 54.244122][ T3088] sp : ffff800012883a50 [ 54.244838][ T3088] x29: ffff800012883a50 x28: ffff0000c5eebc00 x27: 0000000000000000 [ 54.246232][ T3088] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 54.247603][ T3088] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 54.249009][ T3088] x20: 0000000000000000 x19: ffff0000c9cb7000 x18: ffff80000a3f7ee1 [ 54.250430][ T3088] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.251830][ T3088] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.253243][ T3088] x11: 00000000fffffc0e x10: ffff80000a901be4 x9 : 0be2588061007000 [ 54.254610][ T3088] x8 : 0be2588061007000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.256048][ T3088] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.257497][ T3088] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.258966][ T3088] Call trace: [ 54.259564][ T3088] read_block_bitmap+0xec/0x224 [ 54.260464][ T3088] ext2_free_blocks+0x104/0x368 [ 54.261354][ T3088] __ext2_truncate_blocks+0x154/0x550 [ 54.262341][ T3088] ext2_write_failed+0xa4/0xc0 [ 54.263218][ T3088] ext2_write_begin+0x54/0x6c [ 54.264073][ T3088] generic_perform_write+0x80/0x1e4 [ 54.265009][ T3088] __generic_file_write_iter+0x7c/0xc0 [ 54.265991][ T3088] generic_file_write_iter+0x50/0xd4 [ 54.266948][ T3088] ext2_file_write_iter+0x10/0x1c [ 54.267863][ T3088] vfs_write+0x1ac/0x2c4 [ 54.268619][ T3088] __arm64_sys_pwrite64+0x84/0xc8 [ 54.269522][ T3088] invoke_syscall+0x40/0xdc [ 54.270323][ T3088] el0_svc_common+0xb0/0xe8 [ 54.271118][ T3088] do_el0_svc+0x24/0x80 [ 54.271842][ T3088] el0_svc+0x34/0xd4 [ 54.272518][ T3088] el0t_64_sync_handler+0x84/0xf0 [ 54.273382][ T3088] el0t_64_sync+0x18c/0x190 [ 54.274228][ T3088] ---[ end trace 0000000000000000 ]--- [ 54.279359][ T3090] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 54.282706][ T3090] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 54.284002][ T3090] ext2 filesystem being mounted at /43/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 54.291575][ T3090] ------------[ cut here ]------------ [ 54.292517][ T3090] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.292529][ T3090] WARNING: CPU: 0 PID: 3090 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 54.295338][ T3090] Modules linked in: [ 54.296045][ T3090] CPU: 0 PID: 3090 Comm: syz.2.60 Tainted: G W syzkaller #0 [ 54.297708][ T3090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.299604][ T3090] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.300963][ T3090] pc : ext2_new_blocks+0x418/0x564 [ 54.301891][ T3090] lr : ext2_new_blocks+0x418/0x564 [ 54.302838][ T3090] sp : ffff80001286b8f0 [ 54.303577][ T3090] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 54.305002][ T3090] x26: ffff0000c5f04400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 54.306439][ T3090] x23: ffff0000c9cb5000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 54.307807][ T3090] x20: ffff0000c4fb3e00 x19: ffff0000c8e7c7b8 x18: ffff80000a3f7ee1 [ 54.309201][ T3090] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.310592][ T3090] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.312001][ T3090] x11: 00000000fffffc38 x10: ffff80000a901be4 x9 : de537a673bd27300 [ 54.313525][ T3090] x8 : de537a673bd27300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.314998][ T3090] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.316392][ T3090] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 54.317796][ T3090] Call trace: [ 54.318350][ T3090] ext2_new_blocks+0x418/0x564 [ 54.319168][ T3090] ext2_get_blocks+0x4b4/0x9b0 [ 54.319983][ T3090] ext2_get_block+0x58/0x158 [ 54.320770][ T3090] __block_write_begin_int+0x10c/0x6f0 [ 54.321775][ T3090] block_write_begin+0x5c/0xa4 [ 54.322577][ T3090] ext2_write_begin+0x40/0x6c [ 54.323411][ T3090] generic_perform_write+0x80/0x1e4 [ 54.324345][ T3090] __generic_file_write_iter+0x7c/0xc0 [ 54.325334][ T3090] generic_file_write_iter+0x50/0xd4 [ 54.326262][ T3090] ext2_file_write_iter+0x10/0x1c [ 54.327163][ T3090] vfs_write+0x1ac/0x2c4 [ 54.327927][ T3090] __arm64_sys_pwrite64+0x84/0xc8 [ 54.328825][ T3090] invoke_syscall+0x40/0xdc [ 54.329601][ T3090] el0_svc_common+0xb0/0xe8 [ 54.330391][ T3090] do_el0_svc+0x24/0x80 [ 54.331125][ T3090] el0_svc+0x34/0xd4 [ 54.331815][ T3090] el0t_64_sync_handler+0x84/0xf0 [ 54.332708][ T3090] el0t_64_sync+0x18c/0x190 [ 54.333504][ T3090] ---[ end trace 0000000000000000 ]--- [ 54.334765][ T3090] ------------[ cut here ]------------ [ 54.335758][ T3090] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 54.335771][ T3090] WARNING: CPU: 0 PID: 3090 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.338677][ T3090] Modules linked in: [ 54.339306][ T3090] CPU: 0 PID: 3090 Comm: syz.2.60 Tainted: G W syzkaller #0 [ 54.340761][ T3090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.342413][ T3090] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.343681][ T3090] pc : read_block_bitmap+0xec/0x224 [ 54.344543][ T3090] lr : read_block_bitmap+0xe8/0x224 [ 54.345406][ T3090] sp : ffff80001286ba50 [ 54.346183][ T3090] x29: ffff80001286ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 54.347732][ T3090] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 54.349203][ T3090] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 54.350630][ T3090] x20: 0000000000000000 x19: ffff0000c9cb5000 x18: ffff80000a3f7ee1 [ 54.352066][ T3090] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.353524][ T3090] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.354991][ T3090] x11: 00000000fffffc60 x10: ffff80000a901be4 x9 : de537a673bd27300 [ 54.356462][ T3090] x8 : de537a673bd27300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.357917][ T3090] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.359368][ T3090] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.360839][ T3090] Call trace: [ 54.361423][ T3090] read_block_bitmap+0xec/0x224 [ 54.362296][ T3090] ext2_free_blocks+0x104/0x368 [ 54.363165][ T3090] __ext2_truncate_blocks+0xb8/0x550 [ 54.364110][ T3090] ext2_write_failed+0xa4/0xc0 [ 54.364976][ T3090] ext2_write_begin+0x54/0x6c [ 54.365777][ T3090] generic_perform_write+0x80/0x1e4 [ 54.366690][ T3090] __generic_file_write_iter+0x7c/0xc0 [ 54.367655][ T3090] generic_file_write_iter+0x50/0xd4 [ 54.368585][ T3090] ext2_file_write_iter+0x10/0x1c [ 54.369464][ T3090] vfs_write+0x1ac/0x2c4 [ 54.370221][ T3090] __arm64_sys_pwrite64+0x84/0xc8 [ 54.371112][ T3090] invoke_syscall+0x40/0xdc [ 54.371908][ T3090] el0_svc_common+0xb0/0xe8 [ 54.372693][ T3090] do_el0_svc+0x24/0x80 [ 54.373424][ T3090] el0_svc+0x34/0xd4 [ 54.374125][ T3090] el0t_64_sync_handler+0x84/0xf0 [ 54.375030][ T3090] el0t_64_sync+0x18c/0x190 [ 54.375822][ T3090] ---[ end trace 0000000000000000 ]--- [ 54.376843][ T3090] ------------[ cut here ]------------ [ 54.377706][ T3090] block_group >= groups_count - block_group = 3, groups_count = 1 [ 54.377718][ T3090] WARNING: CPU: 0 PID: 3090 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.380377][ T3090] Modules linked in: [ 54.380975][ T3090] CPU: 0 PID: 3090 Comm: syz.2.60 Tainted: G W syzkaller #0 [ 54.382300][ T3090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.383868][ T3090] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.385064][ T3090] pc : read_block_bitmap+0xec/0x224 [ 54.385906][ T3090] lr : read_block_bitmap+0xe8/0x224 [ 54.386822][ T3090] sp : ffff80001286ba50 [ 54.387558][ T3090] x29: ffff80001286ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 54.388956][ T3090] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 54.390366][ T3090] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 54.391831][ T3090] x20: 0000000000000000 x19: ffff0000c9cb5000 x18: ffff80000a3f7ee1 [ 54.393303][ T3090] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.394737][ T3090] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.396176][ T3090] x11: 00000000fffffc87 x10: c0000000fffffc87 x9 : de537a673bd27300 [ 54.397572][ T3090] x8 : de537a673bd27300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.398992][ T3090] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.400471][ T3090] x2 : 0000000000000000 x1 : ffff80001286b7e0 x0 : 0000000000000000 [ 54.401956][ T3090] Call trace: [ 54.402540][ T3090] read_block_bitmap+0xec/0x224 [ 54.403429][ T3090] ext2_free_blocks+0x104/0x368 [ 54.404293][ T3090] __ext2_truncate_blocks+0xb8/0x550 [ 54.405243][ T3090] ext2_write_failed+0xa4/0xc0 [ 54.406096][ T3090] ext2_write_begin+0x54/0x6c [ 54.406916][ T3090] generic_perform_write+0x80/0x1e4 [ 54.407826][ T3090] __generic_file_write_iter+0x7c/0xc0 [ 54.408799][ T3090] generic_file_write_iter+0x50/0xd4 [ 54.409742][ T3090] ext2_file_write_iter+0x10/0x1c [ 54.410602][ T3090] vfs_write+0x1ac/0x2c4 [ 54.411343][ T3090] __arm64_sys_pwrite64+0x84/0xc8 [ 54.412223][ T3090] invoke_syscall+0x40/0xdc [ 54.413020][ T3090] el0_svc_common+0xb0/0xe8 [ 54.413799][ T3090] do_el0_svc+0x24/0x80 [ 54.414521][ T3090] el0_svc+0x34/0xd4 [ 54.415195][ T3090] el0t_64_sync_handler+0x84/0xf0 [ 54.416054][ T3090] el0t_64_sync+0x18c/0x190 [ 54.416834][ T3090] ---[ end trace 0000000000000000 ]--- [ 54.418100][ T3090] ------------[ cut here ]------------ [ 54.418929][ T3090] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.418941][ T3090] WARNING: CPU: 0 PID: 3090 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.421593][ T3090] Modules linked in: [ 54.422215][ T3090] CPU: 0 PID: 3090 Comm: syz.2.60 Tainted: G W syzkaller #0 [ 54.423517][ T3090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.425090][ T3090] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.426432][ T3090] pc : read_block_bitmap+0xec/0x224 [ 54.427377][ T3090] lr : read_block_bitmap+0xe8/0x224 [ 54.428339][ T3090] sp : ffff80001286ba50 [ 54.429109][ T3090] x29: ffff80001286ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 54.430596][ T3090] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 54.432064][ T3090] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 54.433472][ T3090] x20: 0000000000000000 x19: ffff0000c9cb5000 x18: ffff80000a3f7ee1 [ 54.434864][ T3090] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.436277][ T3090] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.437677][ T3090] x11: 00000000fffffcae x10: ffff80000a901be4 x9 : de537a673bd27300 [ 54.439094][ T3090] x8 : de537a673bd27300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.440526][ T3090] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.441941][ T3090] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.443388][ T3090] Call trace: [ 54.443972][ T3090] read_block_bitmap+0xec/0x224 [ 54.444817][ T3090] ext2_free_blocks+0x104/0x368 [ 54.445716][ T3090] __ext2_truncate_blocks+0x154/0x550 [ 54.446679][ T3090] ext2_write_failed+0xa4/0xc0 [ 54.447519][ T3090] ext2_write_begin+0x54/0x6c [ 54.448312][ T3090] generic_perform_write+0x80/0x1e4 [ 54.449249][ T3090] __generic_file_write_iter+0x7c/0xc0 [ 54.450236][ T3090] generic_file_write_iter+0x50/0xd4 [ 54.451170][ T3090] ext2_file_write_iter+0x10/0x1c [ 54.452075][ T3090] vfs_write+0x1ac/0x2c4 [ 54.452849][ T3090] __arm64_sys_pwrite64+0x84/0xc8 [ 54.453727][ T3090] invoke_syscall+0x40/0xdc [ 54.454509][ T3090] el0_svc_common+0xb0/0xe8 [ 54.455294][ T3090] do_el0_svc+0x24/0x80 [ 54.456040][ T3090] el0_svc+0x34/0xd4 [ 54.456750][ T3090] el0t_64_sync_handler+0x84/0xf0 [ 54.457620][ T3090] el0t_64_sync+0x18c/0x190 [ 54.458431][ T3090] ---[ end trace 0000000000000000 ]--- [ 54.462763][ T3092] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 54.463930][ T3092] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 54.465164][ T3092] ext2 filesystem being mounted at /44/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 54.469176][ T3092] ------------[ cut here ]------------ [ 54.470079][ T3092] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.470117][ T3092] WARNING: CPU: 1 PID: 3092 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 54.473052][ T3092] Modules linked in: [ 54.473745][ T3092] CPU: 1 PID: 3092 Comm: syz.2.61 Tainted: G W syzkaller #0 [ 54.475313][ T3092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.477044][ T3092] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.478399][ T3092] pc : ext2_new_blocks+0x418/0x564 [ 54.479271][ T3092] lr : ext2_new_blocks+0x418/0x564 [ 54.480130][ T3092] sp : ffff8000128738f0 [ 54.480837][ T3092] x29: ffff800012873940 x28: 0000000000010000 x27: 0000000000000008 [ 54.482216][ T3092] x26: ffff0000cd5ef400 x25: 0000000000010000 x24: ffff8000128739f4 [ 54.483612][ T3092] x23: ffff0000c5ec1000 x22: 0000000000000000 x21: ffff8000128739f8 [ 54.485046][ T3092] x20: ffff0000c5583380 x19: ffff0000c8ef41d8 x18: 0000000000000000 [ 54.486486][ T3092] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 54.487892][ T3092] x14: 0000000000100000 x13: 0000000002393303 x12: ffff80000e90c000 [ 54.489327][ T3092] x11: 0000000000000003 x10: 00000000ffffffff x9 : cb5c7a16968f1d00 [ 54.490749][ T3092] x8 : cb5c7a16968f1d00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 54.492180][ T3092] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.493618][ T3092] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 54.495048][ T3092] Call trace: [ 54.495584][ T3092] ext2_new_blocks+0x418/0x564 [ 54.496398][ T3092] ext2_get_blocks+0x4b4/0x9b0 [ 54.497226][ T3092] ext2_get_block+0x58/0x158 [ 54.498015][ T3092] __block_write_begin_int+0x10c/0x6f0 [ 54.499006][ T3092] block_write_begin+0x5c/0xa4 [ 54.499854][ T3092] ext2_write_begin+0x40/0x6c [ 54.500680][ T3092] generic_perform_write+0x80/0x1e4 [ 54.501593][ T3092] __generic_file_write_iter+0x7c/0xc0 [ 54.502560][ T3092] generic_file_write_iter+0x50/0xd4 [ 54.503522][ T3092] ext2_file_write_iter+0x10/0x1c [ 54.504387][ T3092] vfs_write+0x1ac/0x2c4 [ 54.505119][ T3092] __arm64_sys_pwrite64+0x84/0xc8 [ 54.505984][ T3092] invoke_syscall+0x40/0xdc [ 54.506771][ T3092] el0_svc_common+0xb0/0xe8 [ 54.507555][ T3092] do_el0_svc+0x24/0x80 [ 54.508281][ T3092] el0_svc+0x34/0xd4 [ 54.508961][ T3092] el0t_64_sync_handler+0x84/0xf0 [ 54.509851][ T3092] el0t_64_sync+0x18c/0x190 [ 54.510678][ T3092] ---[ end trace 0000000000000000 ]--- [ 54.511910][ T3092] ------------[ cut here ]------------ [ 54.512884][ T3092] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 54.512899][ T3092] WARNING: CPU: 1 PID: 3092 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.515537][ T3092] Modules linked in: [ 54.516203][ T3092] CPU: 1 PID: 3092 Comm: syz.2.61 Tainted: G W syzkaller #0 [ 54.517721][ T3092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.519475][ T3092] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.520811][ T3092] pc : read_block_bitmap+0xec/0x224 [ 54.521722][ T3092] lr : read_block_bitmap+0xe8/0x224 [ 54.522642][ T3092] sp : ffff800012873a50 [ 54.523346][ T3092] x29: ffff800012873a50 x28: ffff0000c4151000 x27: 0000000000000000 [ 54.524730][ T3092] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 54.526104][ T3092] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 54.527487][ T3092] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 54.528861][ T3092] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.530218][ T3092] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.531595][ T3092] x11: 00000000fffffd00 x10: ffff80000a901be4 x9 : cb5c7a16968f1d00 [ 54.532934][ T3092] x8 : cb5c7a16968f1d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.534320][ T3092] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.535727][ T3092] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.537149][ T3092] Call trace: [ 54.537736][ T3092] read_block_bitmap+0xec/0x224 [ 54.538621][ T3092] ext2_free_blocks+0x104/0x368 [ 54.539450][ T3092] __ext2_truncate_blocks+0xb8/0x550 [ 54.540379][ T3092] ext2_write_failed+0xa4/0xc0 [ 54.541203][ T3092] ext2_write_begin+0x54/0x6c [ 54.542008][ T3092] generic_perform_write+0x80/0x1e4 [ 54.542901][ T3092] __generic_file_write_iter+0x7c/0xc0 [ 54.543845][ T3092] generic_file_write_iter+0x50/0xd4 [ 54.544767][ T3092] ext2_file_write_iter+0x10/0x1c [ 54.545629][ T3092] vfs_write+0x1ac/0x2c4 [ 54.546339][ T3092] __arm64_sys_pwrite64+0x84/0xc8 [ 54.547216][ T3092] invoke_syscall+0x40/0xdc [ 54.548034][ T3092] el0_svc_common+0xb0/0xe8 [ 54.548821][ T3092] do_el0_svc+0x24/0x80 [ 54.549533][ T3092] el0_svc+0x34/0xd4 [ 54.550197][ T3092] el0t_64_sync_handler+0x84/0xf0 [ 54.551094][ T3092] el0t_64_sync+0x18c/0x190 [ 54.551860][ T3092] ---[ end trace 0000000000000000 ]--- [ 54.552858][ T3092] ------------[ cut here ]------------ [ 54.553663][ T3092] block_group >= groups_count - block_group = 3, groups_count = 1 [ 54.553677][ T3092] WARNING: CPU: 1 PID: 3092 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.556581][ T3092] Modules linked in: [ 54.557252][ T3092] CPU: 1 PID: 3092 Comm: syz.2.61 Tainted: G W syzkaller #0 [ 54.558750][ T3092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.560487][ T3092] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.561782][ T3092] pc : read_block_bitmap+0xec/0x224 [ 54.562633][ T3092] lr : read_block_bitmap+0xe8/0x224 [ 54.563486][ T3092] sp : ffff800012873a50 [ 54.564172][ T3092] x29: ffff800012873a50 x28: ffff0000c4151000 x27: 0000000000000000 [ 54.565484][ T3092] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 54.566843][ T3092] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 54.568189][ T3092] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 54.569527][ T3092] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.570915][ T3092] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.572295][ T3092] x11: 00000000fffffd27 x10: ffff80000a901be4 x9 : cb5c7a16968f1d00 [ 54.573637][ T3092] x8 : cb5c7a16968f1d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.575016][ T3092] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.576411][ T3092] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.577825][ T3092] Call trace: [ 54.578378][ T3092] read_block_bitmap+0xec/0x224 [ 54.579197][ T3092] ext2_free_blocks+0x104/0x368 [ 54.580037][ T3092] __ext2_truncate_blocks+0xb8/0x550 [ 54.580937][ T3092] ext2_write_failed+0xa4/0xc0 [ 54.581769][ T3092] ext2_write_begin+0x54/0x6c [ 54.582572][ T3092] generic_perform_write+0x80/0x1e4 [ 54.583467][ T3092] __generic_file_write_iter+0x7c/0xc0 [ 54.584416][ T3092] generic_file_write_iter+0x50/0xd4 [ 54.585362][ T3092] ext2_file_write_iter+0x10/0x1c [ 54.586241][ T3092] vfs_write+0x1ac/0x2c4 [ 54.586978][ T3092] __arm64_sys_pwrite64+0x84/0xc8 [ 54.587850][ T3092] invoke_syscall+0x40/0xdc [ 54.588628][ T3092] el0_svc_common+0xb0/0xe8 [ 54.589473][ T3092] do_el0_svc+0x24/0x80 [ 54.590198][ T3092] el0_svc+0x34/0xd4 [ 54.590899][ T3092] el0t_64_sync_handler+0x84/0xf0 [ 54.591777][ T3092] el0t_64_sync+0x18c/0x190 [ 54.592594][ T3092] ---[ end trace 0000000000000000 ]--- [ 54.593592][ T3092] ------------[ cut here ]------------ [ 54.594436][ T3092] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.594445][ T3092] WARNING: CPU: 1 PID: 3092 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.597244][ T3092] Modules linked in: [ 54.597921][ T3092] CPU: 1 PID: 3092 Comm: syz.2.61 Tainted: G W syzkaller #0 [ 54.599455][ T3092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.601256][ T3092] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.602635][ T3092] pc : read_block_bitmap+0xec/0x224 [ 54.603525][ T3092] lr : read_block_bitmap+0xe8/0x224 [ 54.604448][ T3092] sp : ffff800012873a50 [ 54.605148][ T3092] x29: ffff800012873a50 x28: ffff0000c4151000 x27: 0000000000000000 [ 54.606535][ T3092] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 54.607931][ T3092] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 54.609376][ T3092] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 54.610769][ T3092] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.612174][ T3092] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.613602][ T3092] x11: 00000000fffffd4e x10: ffff80000a901be4 x9 : cb5c7a16968f1d00 [ 54.614950][ T3092] x8 : cb5c7a16968f1d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.616306][ T3092] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.617706][ T3092] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.619096][ T3092] Call trace: [ 54.619707][ T3092] read_block_bitmap+0xec/0x224 [ 54.620601][ T3092] ext2_free_blocks+0x104/0x368 [ 54.621470][ T3092] __ext2_truncate_blocks+0x154/0x550 [ 54.622440][ T3092] ext2_write_failed+0xa4/0xc0 [ 54.623279][ T3092] ext2_write_begin+0x54/0x6c [ 54.624107][ T3092] generic_perform_write+0x80/0x1e4 [ 54.625018][ T3092] __generic_file_write_iter+0x7c/0xc0 [ 54.625990][ T3092] generic_file_write_iter+0x50/0xd4 [ 54.626944][ T3092] ext2_file_write_iter+0x10/0x1c [ 54.627833][ T3092] vfs_write+0x1ac/0x2c4 [ 54.628567][ T3092] __arm64_sys_pwrite64+0x84/0xc8 [ 54.629447][ T3092] invoke_syscall+0x40/0xdc [ 54.630229][ T3092] el0_svc_common+0xb0/0xe8 [ 54.631003][ T3092] do_el0_svc+0x24/0x80 [ 54.631713][ T3092] el0_svc+0x34/0xd4 [ 54.632379][ T3092] el0t_64_sync_handler+0x84/0xf0 [ 54.633237][ T3092] el0t_64_sync+0x18c/0x190 [ 54.634008][ T3092] ---[ end trace 0000000000000000 ]--- [ 54.639433][ T3094] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 54.640546][ T3094] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 54.641729][ T3094] ext2 filesystem being mounted at /45/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 54.646900][ T3094] ------------[ cut here ]------------ [ 54.647839][ T3094] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.647850][ T3094] WARNING: CPU: 1 PID: 3094 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 54.650470][ T3094] Modules linked in: [ 54.651066][ T3094] CPU: 1 PID: 3094 Comm: syz.2.62 Tainted: G W syzkaller #0 [ 54.652457][ T3094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.654089][ T3094] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.655376][ T3094] pc : ext2_new_blocks+0x418/0x564 [ 54.656250][ T3094] lr : ext2_new_blocks+0x418/0x564 [ 54.657141][ T3094] sp : ffff80001286b8f0 [ 54.657853][ T3094] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 54.659275][ T3094] x26: ffff0000cd583400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 54.660738][ T3094] x23: ffff0000c5ec3000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 54.662199][ T3094] x20: ffff0000c9448900 x19: ffff0000c8ef1e98 x18: ffff80000a3f7ee1 [ 54.663634][ T3094] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.665068][ T3094] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.666480][ T3094] x11: 00000000fffffd78 x10: ffff80000a901be4 x9 : 8169a9f8d0859d00 [ 54.667861][ T3094] x8 : 8169a9f8d0859d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.669372][ T3094] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.670803][ T3094] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 54.672236][ T3094] Call trace: [ 54.672809][ T3094] ext2_new_blocks+0x418/0x564 [ 54.673654][ T3094] ext2_get_blocks+0x4b4/0x9b0 [ 54.674700][ T3094] ext2_get_block+0x58/0x158 [ 54.675533][ T3094] __block_write_begin_int+0x10c/0x6f0 [ 54.676461][ T3094] block_write_begin+0x5c/0xa4 [ 54.677277][ T3094] ext2_write_begin+0x40/0x6c [ 54.678093][ T3094] generic_perform_write+0x80/0x1e4 [ 54.678968][ T3094] __generic_file_write_iter+0x7c/0xc0 [ 54.679900][ T3094] generic_file_write_iter+0x50/0xd4 [ 54.680824][ T3094] ext2_file_write_iter+0x10/0x1c [ 54.681682][ T3094] vfs_write+0x1ac/0x2c4 [ 54.682412][ T3094] __arm64_sys_pwrite64+0x84/0xc8 [ 54.683266][ T3094] invoke_syscall+0x40/0xdc [ 54.684015][ T3094] el0_svc_common+0xb0/0xe8 [ 54.684758][ T3094] do_el0_svc+0x24/0x80 [ 54.685444][ T3094] el0_svc+0x34/0xd4 [ 54.686103][ T3094] el0t_64_sync_handler+0x84/0xf0 [ 54.686954][ T3094] el0t_64_sync+0x18c/0x190 [ 54.687715][ T3094] ---[ end trace 0000000000000000 ]--- [ 54.688699][ T3094] ------------[ cut here ]------------ [ 54.689549][ T3094] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 54.689562][ T3094] WARNING: CPU: 1 PID: 3094 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.692227][ T3094] Modules linked in: [ 54.692796][ T3094] CPU: 1 PID: 3094 Comm: syz.2.62 Tainted: G W syzkaller #0 [ 54.694165][ T3094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.695737][ T3094] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.697104][ T3094] pc : read_block_bitmap+0xec/0x224 [ 54.698001][ T3094] lr : read_block_bitmap+0xe8/0x224 [ 54.698939][ T3094] sp : ffff80001286ba50 [ 54.699686][ T3094] x29: ffff80001286ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 54.701134][ T3094] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 54.702601][ T3094] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 54.704007][ T3094] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: ffff80000a3f7ee1 [ 54.705392][ T3094] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.706778][ T3094] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.708170][ T3094] x11: 00000000fffffda0 x10: ffff80000a901be4 x9 : 8169a9f8d0859d00 [ 54.709564][ T3094] x8 : 8169a9f8d0859d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.710987][ T3094] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.712415][ T3094] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.713812][ T3094] Call trace: [ 54.714365][ T3094] read_block_bitmap+0xec/0x224 [ 54.715223][ T3094] ext2_free_blocks+0x104/0x368 [ 54.716069][ T3094] __ext2_truncate_blocks+0xb8/0x550 [ 54.717022][ T3094] ext2_write_failed+0xa4/0xc0 [ 54.717852][ T3094] ext2_write_begin+0x54/0x6c [ 54.718682][ T3094] generic_perform_write+0x80/0x1e4 [ 54.719576][ T3094] __generic_file_write_iter+0x7c/0xc0 [ 54.720512][ T3094] generic_file_write_iter+0x50/0xd4 [ 54.721459][ T3094] ext2_file_write_iter+0x10/0x1c [ 54.722330][ T3094] vfs_write+0x1ac/0x2c4 [ 54.723048][ T3094] __arm64_sys_pwrite64+0x84/0xc8 [ 54.723963][ T3094] invoke_syscall+0x40/0xdc [ 54.724726][ T3094] el0_svc_common+0xb0/0xe8 [ 54.725478][ T3094] do_el0_svc+0x24/0x80 [ 54.726179][ T3094] el0_svc+0x34/0xd4 [ 54.726835][ T3094] el0t_64_sync_handler+0x84/0xf0 [ 54.727689][ T3094] el0t_64_sync+0x18c/0x190 [ 54.728445][ T3094] ---[ end trace 0000000000000000 ]--- [ 54.729513][ T3094] ------------[ cut here ]------------ [ 54.730357][ T3094] block_group >= groups_count - block_group = 3, groups_count = 1 [ 54.730370][ T3094] WARNING: CPU: 1 PID: 3094 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.733099][ T3094] Modules linked in: [ 54.733700][ T3094] CPU: 1 PID: 3094 Comm: syz.2.62 Tainted: G W syzkaller #0 [ 54.735041][ T3094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.736816][ T3094] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.738228][ T3094] pc : read_block_bitmap+0xec/0x224 [ 54.739152][ T3094] lr : read_block_bitmap+0xe8/0x224 [ 54.740053][ T3094] sp : ffff80001286ba50 [ 54.740766][ T3094] x29: ffff80001286ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 54.742189][ T3094] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 54.743607][ T3094] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 54.744988][ T3094] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: ffff80000a3f7ee1 [ 54.746416][ T3094] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.747824][ T3094] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.749215][ T3094] x11: 00000000fffffdc7 x10: ffff80000a901be4 x9 : 8169a9f8d0859d00 [ 54.750586][ T3094] x8 : 8169a9f8d0859d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.751947][ T3094] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.753332][ T3094] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.754709][ T3094] Call trace: [ 54.755237][ T3094] read_block_bitmap+0xec/0x224 [ 54.756050][ T3094] ext2_free_blocks+0x104/0x368 [ 54.756845][ T3094] __ext2_truncate_blocks+0xb8/0x550 [ 54.757795][ T3094] ext2_write_failed+0xa4/0xc0 [ 54.758634][ T3094] ext2_write_begin+0x54/0x6c [ 54.759438][ T3094] generic_perform_write+0x80/0x1e4 [ 54.760345][ T3094] __generic_file_write_iter+0x7c/0xc0 [ 54.761305][ T3094] generic_file_write_iter+0x50/0xd4 [ 54.762207][ T3094] ext2_file_write_iter+0x10/0x1c [ 54.763069][ T3094] vfs_write+0x1ac/0x2c4 [ 54.763784][ T3094] __arm64_sys_pwrite64+0x84/0xc8 [ 54.764654][ T3094] invoke_syscall+0x40/0xdc [ 54.765419][ T3094] el0_svc_common+0xb0/0xe8 [ 54.766183][ T3094] do_el0_svc+0x24/0x80 [ 54.766909][ T3094] el0_svc+0x34/0xd4 [ 54.767564][ T3094] el0t_64_sync_handler+0x84/0xf0 [ 54.768393][ T3094] el0t_64_sync+0x18c/0x190 [ 54.769161][ T3094] ---[ end trace 0000000000000000 ]--- [ 54.770106][ T3094] ------------[ cut here ]------------ [ 54.770960][ T3094] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.770973][ T3094] WARNING: CPU: 1 PID: 3094 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.773619][ T3094] Modules linked in: [ 54.774215][ T3094] CPU: 1 PID: 3094 Comm: syz.2.62 Tainted: G W syzkaller #0 [ 54.775544][ T3094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.777377][ T3094] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.778763][ T3094] pc : read_block_bitmap+0xec/0x224 [ 54.779686][ T3094] lr : read_block_bitmap+0xe8/0x224 [ 54.780618][ T3094] sp : ffff80001286ba50 [ 54.781328][ T3094] x29: ffff80001286ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 54.782713][ T3094] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 54.784132][ T3094] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 54.785537][ T3094] x20: 0000000000000000 x19: ffff0000c5ec3000 x18: ffff80000a3f7ee1 [ 54.786930][ T3094] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.788300][ T3094] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.789682][ T3094] x11: 00000000fffffdee x10: ffff80000a901be4 x9 : 8169a9f8d0859d00 [ 54.791141][ T3094] x8 : 8169a9f8d0859d00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.792550][ T3094] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.793977][ T3094] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.795408][ T3094] Call trace: [ 54.795983][ T3094] read_block_bitmap+0xec/0x224 [ 54.796839][ T3094] ext2_free_blocks+0x104/0x368 [ 54.797715][ T3094] __ext2_truncate_blocks+0x154/0x550 [ 54.798662][ T3094] ext2_write_failed+0xa4/0xc0 [ 54.799508][ T3094] ext2_write_begin+0x54/0x6c [ 54.800336][ T3094] generic_perform_write+0x80/0x1e4 [ 54.801254][ T3094] __generic_file_write_iter+0x7c/0xc0 [ 54.802182][ T3094] generic_file_write_iter+0x50/0xd4 [ 54.803076][ T3094] ext2_file_write_iter+0x10/0x1c [ 54.803938][ T3094] vfs_write+0x1ac/0x2c4 [ 54.804670][ T3094] __arm64_sys_pwrite64+0x84/0xc8 [ 54.805543][ T3094] invoke_syscall+0x40/0xdc [ 54.806316][ T3094] el0_svc_common+0xb0/0xe8 [ 54.807073][ T3094] do_el0_svc+0x24/0x80 [ 54.807778][ T3094] el0_svc+0x34/0xd4 [ 54.808459][ T3094] el0t_64_sync_handler+0x84/0xf0 [ 54.809339][ T3094] el0t_64_sync+0x18c/0x190 [ 54.810119][ T3094] ---[ end trace 0000000000000000 ]--- [ 54.816065][ T3096] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 54.817715][ T3096] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 54.821011][ T3096] ext2 filesystem being mounted at /46/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 54.829286][ T3096] ------------[ cut here ]------------ [ 54.830247][ T3096] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.830260][ T3096] WARNING: CPU: 1 PID: 3096 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 54.832978][ T3096] Modules linked in: [ 54.833601][ T3096] CPU: 1 PID: 3096 Comm: syz.2.63 Tainted: G W syzkaller #0 [ 54.835161][ T3096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.836981][ T3096] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.838378][ T3096] pc : ext2_new_blocks+0x418/0x564 [ 54.839258][ T3096] lr : ext2_new_blocks+0x418/0x564 [ 54.840138][ T3096] sp : ffff80001287b8f0 [ 54.840892][ T3096] x29: ffff80001287b940 x28: 0000000000010000 x27: 0000000000000008 [ 54.842286][ T3096] x26: ffff0000cd5be400 x25: 0000000000010000 x24: ffff80001287b9f4 [ 54.843716][ T3096] x23: ffff0000c5ec4000 x22: 0000000000000000 x21: ffff80001287b9f8 [ 54.845149][ T3096] x20: ffff0000c9448300 x19: ffff0000c8ef2478 x18: ffff80000a3f7ee1 [ 54.846556][ T3096] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.847930][ T3096] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.849354][ T3096] x11: 00000000fffffe18 x10: ffff80000a901be4 x9 : 82304ce8d02e0600 [ 54.850774][ T3096] x8 : 82304ce8d02e0600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.852179][ T3096] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.853553][ T3096] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 54.854988][ T3096] Call trace: [ 54.855538][ T3096] ext2_new_blocks+0x418/0x564 [ 54.856350][ T3096] ext2_get_blocks+0x4b4/0x9b0 [ 54.857161][ T3096] ext2_get_block+0x58/0x158 [ 54.857957][ T3096] __block_write_begin_int+0x10c/0x6f0 [ 54.858886][ T3096] block_write_begin+0x5c/0xa4 [ 54.859683][ T3096] ext2_write_begin+0x40/0x6c [ 54.860477][ T3096] generic_perform_write+0x80/0x1e4 [ 54.861386][ T3096] __generic_file_write_iter+0x7c/0xc0 [ 54.862331][ T3096] generic_file_write_iter+0x50/0xd4 [ 54.863224][ T3096] ext2_file_write_iter+0x10/0x1c [ 54.864107][ T3096] vfs_write+0x1ac/0x2c4 [ 54.864846][ T3096] __arm64_sys_pwrite64+0x84/0xc8 [ 54.865715][ T3096] invoke_syscall+0x40/0xdc [ 54.866489][ T3096] el0_svc_common+0xb0/0xe8 [ 54.867258][ T3096] do_el0_svc+0x24/0x80 [ 54.868014][ T3096] el0_svc+0x34/0xd4 [ 54.868696][ T3096] el0t_64_sync_handler+0x84/0xf0 [ 54.869587][ T3096] el0t_64_sync+0x18c/0x190 [ 54.870368][ T3096] ---[ end trace 0000000000000000 ]--- [ 54.871464][ T3096] ------------[ cut here ]------------ [ 54.872357][ T3096] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 54.872369][ T3096] WARNING: CPU: 1 PID: 3096 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.875124][ T3096] Modules linked in: [ 54.875814][ T3096] CPU: 1 PID: 3096 Comm: syz.2.63 Tainted: G W syzkaller #0 [ 54.877347][ T3096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.879164][ T3096] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.880609][ T3096] pc : read_block_bitmap+0xec/0x224 [ 54.881554][ T3096] lr : read_block_bitmap+0xe8/0x224 [ 54.882489][ T3096] sp : ffff80001287ba50 [ 54.883232][ T3096] x29: ffff80001287ba50 x28: ffff0000c4151800 x27: 0000000000000000 [ 54.884668][ T3096] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 54.886108][ T3096] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 54.887536][ T3096] x20: 0000000000000000 x19: ffff0000c5ec4000 x18: ffff80000a3f7ee1 [ 54.888941][ T3096] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 54.890374][ T3096] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 54.891753][ T3096] x11: 00000000fffffe40 x10: ffff80000a901be4 x9 : 82304ce8d02e0600 [ 54.893160][ T3096] x8 : 82304ce8d02e0600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 54.894585][ T3096] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.895996][ T3096] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 54.897385][ T3096] Call trace: [ 54.897951][ T3096] read_block_bitmap+0xec/0x224 [ 54.898792][ T3096] ext2_free_blocks+0x104/0x368 [ 54.899658][ T3096] __ext2_truncate_blocks+0xb8/0x550 [ 54.900610][ T3096] ext2_write_failed+0xa4/0xc0 [ 54.901468][ T3096] ext2_write_begin+0x54/0x6c [ 54.902278][ T3096] generic_perform_write+0x80/0x1e4 [ 54.903215][ T3096] __generic_file_write_iter+0x7c/0xc0 [ 54.904185][ T3096] generic_file_write_iter+0x50/0xd4 [ 54.905123][ T3096] ext2_file_write_iter+0x10/0x1c [ 54.906022][ T3096] vfs_write+0x1ac/0x2c4 [ 54.906768][ T3096] __arm64_sys_pwrite64+0x84/0xc8 [ 54.907651][ T3096] invoke_syscall+0x40/0xdc [ 54.908471][ T3096] el0_svc_common+0xb0/0xe8 [ 54.909294][ T3096] do_el0_svc+0x24/0x80 [ 54.910042][ T3096] el0_svc+0x34/0xd4 [ 54.910710][ T3096] el0t_64_sync_handler+0x84/0xf0 [ 54.911606][ T3096] el0t_64_sync+0x18c/0x190 [ 54.912404][ T3096] ---[ end trace 0000000000000000 ]--- [ 54.913670][ T3096] ------------[ cut here ]------------ [ 54.914475][ T3096] block_group >= groups_count - block_group = 3, groups_count = 1 [ 54.914543][ T3096] WARNING: CPU: 1 PID: 3096 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.917328][ T3096] Modules linked in: [ 54.917998][ T3096] CPU: 1 PID: 3096 Comm: syz.2.63 Tainted: G W syzkaller #0 [ 54.919530][ T3096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.921314][ T3096] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.922739][ T3096] pc : read_block_bitmap+0xec/0x224 [ 54.923670][ T3096] lr : read_block_bitmap+0xe8/0x224 [ 54.924608][ T3096] sp : ffff80001287ba50 [ 54.925363][ T3096] x29: ffff80001287ba50 x28: ffff0000c4151800 x27: 0000000000000000 [ 54.926777][ T3096] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 54.928205][ T3096] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 54.929648][ T3096] x20: 0000000000000000 x19: ffff0000c5ec4000 x18: 0000000000000000 [ 54.931106][ T3096] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 54.932530][ T3096] x14: 00000000000dc796 x13: 00000000029c95cc x12: ffff80000e90c000 [ 54.933944][ T3096] x11: 0000000000000004 x10: 00000000ffffffff x9 : 82304ce8d02e0600 [ 54.935389][ T3096] x8 : 82304ce8d02e0600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 54.936827][ T3096] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.938301][ T3096] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 54.939743][ T3096] Call trace: [ 54.940324][ T3096] read_block_bitmap+0xec/0x224 [ 54.941225][ T3096] ext2_free_blocks+0x104/0x368 [ 54.942073][ T3096] __ext2_truncate_blocks+0xb8/0x550 [ 54.943022][ T3096] ext2_write_failed+0xa4/0xc0 [ 54.943843][ T3096] ext2_write_begin+0x54/0x6c [ 54.944675][ T3096] generic_perform_write+0x80/0x1e4 [ 54.945570][ T3096] __generic_file_write_iter+0x7c/0xc0 [ 54.946507][ T3096] generic_file_write_iter+0x50/0xd4 [ 54.947427][ T3096] ext2_file_write_iter+0x10/0x1c [ 54.948301][ T3096] vfs_write+0x1ac/0x2c4 [ 54.949045][ T3096] __arm64_sys_pwrite64+0x84/0xc8 [ 54.949914][ T3096] invoke_syscall+0x40/0xdc [ 54.950688][ T3096] el0_svc_common+0xb0/0xe8 [ 54.951462][ T3096] do_el0_svc+0x24/0x80 [ 54.952185][ T3096] el0_svc+0x34/0xd4 [ 54.952863][ T3096] el0t_64_sync_handler+0x84/0xf0 [ 54.953721][ T3096] el0t_64_sync+0x18c/0x190 [ 54.954540][ T3096] ---[ end trace 0000000000000000 ]--- [ 54.955543][ T3096] ------------[ cut here ]------------ [ 54.956502][ T3096] block_group >= groups_count - block_group = 7, groups_count = 1 [ 54.956551][ T3096] WARNING: CPU: 1 PID: 3096 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 54.959145][ T3096] Modules linked in: [ 54.959725][ T3096] CPU: 1 PID: 3096 Comm: syz.2.63 Tainted: G W syzkaller #0 [ 54.961137][ T3096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.962688][ T3096] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.963879][ T3096] pc : read_block_bitmap+0xec/0x224 [ 54.964679][ T3096] lr : read_block_bitmap+0xe8/0x224 [ 54.965485][ T3096] sp : ffff80001287ba50 [ 54.966192][ T3096] x29: ffff80001287ba50 x28: ffff0000c4151800 x27: 0000000000000000 [ 54.967631][ T3096] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 54.969038][ T3096] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 54.970442][ T3096] x20: 0000000000000000 x19: ffff0000c5ec4000 x18: 0000000000008c00 [ 54.971836][ T3096] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000198 [ 54.973294][ T3096] x14: 00000000000ef2eb x13: 0000000002c941ab x12: ffff80000e90c000 [ 54.974754][ T3096] x11: 0000000000000004 x10: 00000000ffffffff x9 : 82304ce8d02e0600 [ 54.976212][ T3096] x8 : 82304ce8d02e0600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 54.977652][ T3096] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 54.979083][ T3096] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 54.980500][ T3096] Call trace: [ 54.981087][ T3096] read_block_bitmap+0xec/0x224 [ 54.981943][ T3096] ext2_free_blocks+0x104/0x368 [ 54.982780][ T3096] __ext2_truncate_blocks+0x154/0x550 [ 54.983712][ T3096] ext2_write_failed+0xa4/0xc0 [ 54.984539][ T3096] ext2_write_begin+0x54/0x6c [ 54.985350][ T3096] generic_perform_write+0x80/0x1e4 [ 54.986255][ T3096] __generic_file_write_iter+0x7c/0xc0 [ 54.987199][ T3096] generic_file_write_iter+0x50/0xd4 [ 54.988090][ T3096] ext2_file_write_iter+0x10/0x1c [ 54.988941][ T3096] vfs_write+0x1ac/0x2c4 [ 54.989662][ T3096] __arm64_sys_pwrite64+0x84/0xc8 [ 54.990560][ T3096] invoke_syscall+0x40/0xdc [ 54.991310][ T3096] el0_svc_common+0xb0/0xe8 [ 54.992074][ T3096] do_el0_svc+0x24/0x80 [ 54.992815][ T3096] el0_svc+0x34/0xd4 [ 54.993477][ T3096] el0t_64_sync_handler+0x84/0xf0 [ 54.994358][ T3096] el0t_64_sync+0x18c/0x190 [ 54.995150][ T3096] ---[ end trace 0000000000000000 ]--- [ 55.003510][ T3098] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 55.004645][ T3098] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 55.005923][ T3098] ext2 filesystem being mounted at /47/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.010586][ T3098] ------------[ cut here ]------------ [ 55.011510][ T3098] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.011522][ T3098] WARNING: CPU: 0 PID: 3098 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 55.014568][ T3098] Modules linked in: [ 55.015273][ T3098] CPU: 0 PID: 3098 Comm: syz.2.64 Tainted: G W syzkaller #0 [ 55.016861][ T3098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.018670][ T3098] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.020090][ T3098] pc : ext2_new_blocks+0x418/0x564 [ 55.020994][ T3098] lr : ext2_new_blocks+0x418/0x564 [ 55.021925][ T3098] sp : ffff80001288b8f0 [ 55.022653][ T3098] x29: ffff80001288b940 x28: 0000000000010000 x27: 0000000000000008 [ 55.024083][ T3098] x26: ffff0000ce827400 x25: 0000000000010000 x24: ffff80001288b9f4 [ 55.025480][ T3098] x23: ffff0000c5ec1000 x22: 0000000000000000 x21: ffff80001288b9f8 [ 55.026863][ T3098] x20: ffff0000c56d4480 x19: ffff0000c8e7c1d8 x18: ffff80000a3f7ee1 [ 55.028285][ T3098] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.029707][ T3098] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.031131][ T3098] x11: 00000000fffffeb8 x10: ffff80000a901be4 x9 : a74ab9273a7c4000 [ 55.032515][ T3098] x8 : a74ab9273a7c4000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.033927][ T3098] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.035335][ T3098] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 55.036769][ T3098] Call trace: [ 55.037338][ T3098] ext2_new_blocks+0x418/0x564 [ 55.038169][ T3098] ext2_get_blocks+0x4b4/0x9b0 [ 55.039018][ T3098] ext2_get_block+0x58/0x158 [ 55.039828][ T3098] __block_write_begin_int+0x10c/0x6f0 [ 55.040777][ T3098] block_write_begin+0x5c/0xa4 [ 55.041605][ T3098] ext2_write_begin+0x40/0x6c [ 55.042426][ T3098] generic_perform_write+0x80/0x1e4 [ 55.043323][ T3098] __generic_file_write_iter+0x7c/0xc0 [ 55.044295][ T3098] generic_file_write_iter+0x50/0xd4 [ 55.045265][ T3098] ext2_file_write_iter+0x10/0x1c [ 55.046175][ T3098] vfs_write+0x1ac/0x2c4 [ 55.046926][ T3098] __arm64_sys_pwrite64+0x84/0xc8 [ 55.047824][ T3098] invoke_syscall+0x40/0xdc [ 55.048635][ T3098] el0_svc_common+0xb0/0xe8 [ 55.049437][ T3098] do_el0_svc+0x24/0x80 [ 55.050178][ T3098] el0_svc+0x34/0xd4 [ 55.050877][ T3098] el0t_64_sync_handler+0x84/0xf0 [ 55.051776][ T3098] el0t_64_sync+0x18c/0x190 [ 55.052601][ T3098] ---[ end trace 0000000000000000 ]--- [ 55.053666][ T3098] ------------[ cut here ]------------ [ 55.054547][ T3098] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 55.054558][ T3098] WARNING: CPU: 0 PID: 3098 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.057661][ T3098] Modules linked in: [ 55.058385][ T3098] CPU: 0 PID: 3098 Comm: syz.2.64 Tainted: G W syzkaller #0 [ 55.060025][ T3098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.061899][ T3098] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.063305][ T3098] pc : read_block_bitmap+0xec/0x224 [ 55.064243][ T3098] lr : read_block_bitmap+0xe8/0x224 [ 55.065198][ T3098] sp : ffff80001288ba50 [ 55.065936][ T3098] x29: ffff80001288ba50 x28: ffff0000c4153000 x27: 0000000000000000 [ 55.067408][ T3098] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 55.068896][ T3098] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 55.070361][ T3098] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 55.071827][ T3098] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.073326][ T3098] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.074764][ T3098] x11: 00000000fffffee0 x10: ffff80000a901be4 x9 : a74ab9273a7c4000 [ 55.076197][ T3098] x8 : a74ab9273a7c4000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.077627][ T3098] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.079066][ T3098] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.080501][ T3098] Call trace: [ 55.081076][ T3098] read_block_bitmap+0xec/0x224 [ 55.081958][ T3098] ext2_free_blocks+0x104/0x368 [ 55.082838][ T3098] __ext2_truncate_blocks+0xb8/0x550 [ 55.083796][ T3098] ext2_write_failed+0xa4/0xc0 [ 55.084655][ T3098] ext2_write_begin+0x54/0x6c [ 55.085508][ T3098] generic_perform_write+0x80/0x1e4 [ 55.086428][ T3098] __generic_file_write_iter+0x7c/0xc0 [ 55.087425][ T3098] generic_file_write_iter+0x50/0xd4 [ 55.088410][ T3098] ext2_file_write_iter+0x10/0x1c [ 55.089299][ T3098] vfs_write+0x1ac/0x2c4 [ 55.090022][ T3098] __arm64_sys_pwrite64+0x84/0xc8 [ 55.090916][ T3098] invoke_syscall+0x40/0xdc [ 55.091701][ T3098] el0_svc_common+0xb0/0xe8 [ 55.092509][ T3098] do_el0_svc+0x24/0x80 [ 55.093236][ T3098] el0_svc+0x34/0xd4 [ 55.093912][ T3098] el0t_64_sync_handler+0x84/0xf0 [ 55.094809][ T3098] el0t_64_sync+0x18c/0x190 [ 55.095581][ T3098] ---[ end trace 0000000000000000 ]--- [ 55.096741][ T3098] ------------[ cut here ]------------ [ 55.097577][ T3098] block_group >= groups_count - block_group = 3, groups_count = 1 [ 55.097588][ T3098] WARNING: CPU: 0 PID: 3098 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.100653][ T3098] Modules linked in: [ 55.101366][ T3098] CPU: 0 PID: 3098 Comm: syz.2.64 Tainted: G W syzkaller #0 [ 55.102912][ T3098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.104719][ T3098] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.106191][ T3098] pc : read_block_bitmap+0xec/0x224 [ 55.107117][ T3098] lr : read_block_bitmap+0xe8/0x224 [ 55.108033][ T3098] sp : ffff80001288ba50 [ 55.108773][ T3098] x29: ffff80001288ba50 x28: ffff0000c4153000 x27: 0000000000000000 [ 55.110227][ T3098] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 55.111672][ T3098] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 55.113110][ T3098] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 55.114563][ T3098] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.115942][ T3098] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.117355][ T3098] x11: 00000000ffffff07 x10: ffff80000a901be4 x9 : a74ab9273a7c4000 [ 55.118795][ T3098] x8 : a74ab9273a7c4000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.120212][ T3098] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.121606][ T3098] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.123004][ T3098] Call trace: [ 55.123567][ T3098] read_block_bitmap+0xec/0x224 [ 55.124404][ T3098] ext2_free_blocks+0x104/0x368 [ 55.125253][ T3098] __ext2_truncate_blocks+0xb8/0x550 [ 55.126180][ T3098] ext2_write_failed+0xa4/0xc0 [ 55.127015][ T3098] ext2_write_begin+0x54/0x6c [ 55.127858][ T3098] generic_perform_write+0x80/0x1e4 [ 55.128747][ T3098] __generic_file_write_iter+0x7c/0xc0 [ 55.129685][ T3098] generic_file_write_iter+0x50/0xd4 [ 55.130626][ T3098] ext2_file_write_iter+0x10/0x1c [ 55.131530][ T3098] vfs_write+0x1ac/0x2c4 [ 55.132259][ T3098] __arm64_sys_pwrite64+0x84/0xc8 [ 55.133132][ T3098] invoke_syscall+0x40/0xdc [ 55.133906][ T3098] el0_svc_common+0xb0/0xe8 [ 55.134740][ T3098] do_el0_svc+0x24/0x80 [ 55.135487][ T3098] el0_svc+0x34/0xd4 [ 55.136177][ T3098] el0t_64_sync_handler+0x84/0xf0 [ 55.137063][ T3098] el0t_64_sync+0x18c/0x190 [ 55.137883][ T3098] ---[ end trace 0000000000000000 ]--- [ 55.138913][ T3098] ------------[ cut here ]------------ [ 55.139733][ T3098] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.139744][ T3098] WARNING: CPU: 0 PID: 3098 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.142327][ T3098] Modules linked in: [ 55.142880][ T3098] CPU: 0 PID: 3098 Comm: syz.2.64 Tainted: G W syzkaller #0 [ 55.144197][ T3098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.145781][ T3098] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.147154][ T3098] pc : read_block_bitmap+0xec/0x224 [ 55.148066][ T3098] lr : read_block_bitmap+0xe8/0x224 [ 55.148960][ T3098] sp : ffff80001288ba50 [ 55.149664][ T3098] x29: ffff80001288ba50 x28: ffff0000c4153000 x27: 0000000000000000 [ 55.151083][ T3098] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 55.152493][ T3098] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 55.153900][ T3098] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 55.155331][ T3098] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.156752][ T3098] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.158204][ T3098] x11: 00000000ffffff2e x10: ffff80000a901be4 x9 : a74ab9273a7c4000 [ 55.159609][ T3098] x8 : a74ab9273a7c4000 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.161043][ T3098] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.162452][ T3098] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.163865][ T3098] Call trace: [ 55.164443][ T3098] read_block_bitmap+0xec/0x224 [ 55.165281][ T3098] ext2_free_blocks+0x104/0x368 [ 55.166124][ T3098] __ext2_truncate_blocks+0x154/0x550 [ 55.167066][ T3098] ext2_write_failed+0xa4/0xc0 [ 55.167899][ T3098] ext2_write_begin+0x54/0x6c [ 55.168715][ T3098] generic_perform_write+0x80/0x1e4 [ 55.169632][ T3098] __generic_file_write_iter+0x7c/0xc0 [ 55.170587][ T3098] generic_file_write_iter+0x50/0xd4 [ 55.171521][ T3098] ext2_file_write_iter+0x10/0x1c [ 55.172401][ T3098] vfs_write+0x1ac/0x2c4 [ 55.173154][ T3098] __arm64_sys_pwrite64+0x84/0xc8 [ 55.174020][ T3098] invoke_syscall+0x40/0xdc [ 55.174817][ T3098] el0_svc_common+0xb0/0xe8 [ 55.175653][ T3098] do_el0_svc+0x24/0x80 [ 55.176395][ T3098] el0_svc+0x34/0xd4 [ 55.177087][ T3098] el0t_64_sync_handler+0x84/0xf0 [ 55.177989][ T3098] el0t_64_sync+0x18c/0x190 [ 55.178781][ T3098] ---[ end trace 0000000000000000 ]--- [ 55.185431][ T3100] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 55.186823][ T3100] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 55.188026][ T3100] ext2 filesystem being mounted at /48/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.195577][ T3100] ------------[ cut here ]------------ [ 55.196445][ T3100] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.196470][ T3100] WARNING: CPU: 0 PID: 3100 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 55.199068][ T3100] Modules linked in: [ 55.199651][ T3100] CPU: 0 PID: 3100 Comm: syz.2.65 Tainted: G W syzkaller #0 [ 55.201036][ T3100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.202483][ T3100] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.203648][ T3100] pc : ext2_new_blocks+0x418/0x564 [ 55.204505][ T3100] lr : ext2_new_blocks+0x418/0x564 [ 55.205399][ T3100] sp : ffff80001286b8f0 [ 55.206151][ T3100] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 55.207633][ T3100] x26: ffff0000cd5dd400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 55.209055][ T3100] x23: ffff0000c9cb4000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 55.210434][ T3100] x20: ffff0000c48d0a00 x19: ffff0000c8e7b618 x18: 0000000000000000 [ 55.211803][ T3100] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 55.213197][ T3100] x14: 000000000008ac62 x13: 0000000001a7859c x12: ffff80000e90c000 [ 55.214593][ T3100] x11: 0000000000000003 x10: 00000000ffffffff x9 : ad6eb99caf35d600 [ 55.216014][ T3100] x8 : ad6eb99caf35d600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 55.217438][ T3100] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.218843][ T3100] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 55.220249][ T3100] Call trace: [ 55.220832][ T3100] ext2_new_blocks+0x418/0x564 [ 55.221646][ T3100] ext2_get_blocks+0x4b4/0x9b0 [ 55.222465][ T3100] ext2_get_block+0x58/0x158 [ 55.223258][ T3100] __block_write_begin_int+0x10c/0x6f0 [ 55.224219][ T3100] block_write_begin+0x5c/0xa4 [ 55.225052][ T3100] ext2_write_begin+0x40/0x6c [ 55.225875][ T3100] generic_perform_write+0x80/0x1e4 [ 55.226771][ T3100] __generic_file_write_iter+0x7c/0xc0 [ 55.227723][ T3100] generic_file_write_iter+0x50/0xd4 [ 55.228651][ T3100] ext2_file_write_iter+0x10/0x1c [ 55.229544][ T3100] vfs_write+0x1ac/0x2c4 [ 55.230335][ T3100] __arm64_sys_pwrite64+0x84/0xc8 [ 55.231285][ T3100] invoke_syscall+0x40/0xdc [ 55.232114][ T3100] el0_svc_common+0xb0/0xe8 [ 55.232946][ T3100] do_el0_svc+0x24/0x80 [ 55.233689][ T3100] el0_svc+0x34/0xd4 [ 55.234389][ T3100] el0t_64_sync_handler+0x84/0xf0 [ 55.235271][ T3100] el0t_64_sync+0x18c/0x190 [ 55.236040][ T3100] ---[ end trace 0000000000000000 ]--- [ 55.237032][ T3100] ------------[ cut here ]------------ [ 55.237853][ T3100] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 55.237866][ T3100] WARNING: CPU: 0 PID: 3100 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.240484][ T3100] Modules linked in: [ 55.241054][ T3100] CPU: 0 PID: 3100 Comm: syz.2.65 Tainted: G W syzkaller #0 [ 55.242338][ T3100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.243832][ T3100] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.245017][ T3100] pc : read_block_bitmap+0xec/0x224 [ 55.245853][ T3100] lr : read_block_bitmap+0xe8/0x224 [ 55.246764][ T3100] sp : ffff80001286ba50 [ 55.247473][ T3100] x29: ffff80001286ba50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 55.248947][ T3100] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 55.250371][ T3100] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 55.251844][ T3100] x20: 0000000000000000 x19: ffff0000c9cb4000 x18: ffff80000a3f7ee1 [ 55.253208][ T3100] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.254594][ T3100] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.256005][ T3100] x11: 00000000ffffff80 x10: ffff80000a901be4 x9 : ad6eb99caf35d600 [ 55.257387][ T3100] x8 : ad6eb99caf35d600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.258816][ T3100] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.260204][ T3100] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.261612][ T3100] Call trace: [ 55.262208][ T3100] read_block_bitmap+0xec/0x224 [ 55.263054][ T3100] ext2_free_blocks+0x104/0x368 [ 55.263915][ T3100] __ext2_truncate_blocks+0xb8/0x550 [ 55.264857][ T3100] ext2_write_failed+0xa4/0xc0 [ 55.265676][ T3100] ext2_write_begin+0x54/0x6c [ 55.266498][ T3100] generic_perform_write+0x80/0x1e4 [ 55.267396][ T3100] __generic_file_write_iter+0x7c/0xc0 [ 55.268393][ T3100] generic_file_write_iter+0x50/0xd4 [ 55.269312][ T3100] ext2_file_write_iter+0x10/0x1c [ 55.270201][ T3100] vfs_write+0x1ac/0x2c4 [ 55.270936][ T3100] __arm64_sys_pwrite64+0x84/0xc8 [ 55.271803][ T3100] invoke_syscall+0x40/0xdc [ 55.272617][ T3100] el0_svc_common+0xb0/0xe8 [ 55.273408][ T3100] do_el0_svc+0x24/0x80 [ 55.274126][ T3100] el0_svc+0x34/0xd4 [ 55.274798][ T3100] el0t_64_sync_handler+0x84/0xf0 [ 55.275684][ T3100] el0t_64_sync+0x18c/0x190 [ 55.276457][ T3100] ---[ end trace 0000000000000000 ]--- [ 55.277476][ T3100] ------------[ cut here ]------------ [ 55.278358][ T3100] block_group >= groups_count - block_group = 3, groups_count = 1 [ 55.278369][ T3100] WARNING: CPU: 0 PID: 3100 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.281052][ T3100] Modules linked in: [ 55.281655][ T3100] CPU: 0 PID: 3100 Comm: syz.2.65 Tainted: G W syzkaller #0 [ 55.283004][ T3100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.284488][ T3100] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.285823][ T3100] pc : read_block_bitmap+0xec/0x224 [ 55.286763][ T3100] lr : read_block_bitmap+0xe8/0x224 [ 55.287684][ T3100] sp : ffff80001286ba50 [ 55.288410][ T3100] x29: ffff80001286ba50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 55.289779][ T3100] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 55.291186][ T3100] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 55.292580][ T3100] x20: 0000000000000000 x19: ffff0000c9cb4000 x18: ffff80000a3f7ee1 [ 55.294031][ T3100] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.295469][ T3100] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.296842][ T3100] x11: 00000000ffffffa7 x10: c0000000ffffffa7 x9 : ad6eb99caf35d600 [ 55.298239][ T3100] x8 : ad6eb99caf35d600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.299672][ T3100] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.301121][ T3100] x2 : 0000000000000000 x1 : ffff80001286b7e0 x0 : 0000000000000000 [ 55.302451][ T3100] Call trace: [ 55.302995][ T3100] read_block_bitmap+0xec/0x224 [ 55.303827][ T3100] ext2_free_blocks+0x104/0x368 [ 55.304661][ T3100] __ext2_truncate_blocks+0xb8/0x550 [ 55.305621][ T3100] ext2_write_failed+0xa4/0xc0 [ 55.306452][ T3100] ext2_write_begin+0x54/0x6c [ 55.307299][ T3100] generic_perform_write+0x80/0x1e4 [ 55.308230][ T3100] __generic_file_write_iter+0x7c/0xc0 [ 55.309224][ T3100] generic_file_write_iter+0x50/0xd4 [ 55.310194][ T3100] ext2_file_write_iter+0x10/0x1c [ 55.311100][ T3100] vfs_write+0x1ac/0x2c4 [ 55.311852][ T3100] __arm64_sys_pwrite64+0x84/0xc8 [ 55.312730][ T3100] invoke_syscall+0x40/0xdc [ 55.313546][ T3100] el0_svc_common+0xb0/0xe8 [ 55.314360][ T3100] do_el0_svc+0x24/0x80 [ 55.315099][ T3100] el0_svc+0x34/0xd4 [ 55.315771][ T3100] el0t_64_sync_handler+0x84/0xf0 [ 55.316668][ T3100] el0t_64_sync+0x18c/0x190 [ 55.317451][ T3100] ---[ end trace 0000000000000000 ]--- [ 55.318462][ T3100] ------------[ cut here ]------------ [ 55.319353][ T3100] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.319365][ T3100] WARNING: CPU: 0 PID: 3100 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.321936][ T3100] Modules linked in: [ 55.322533][ T3100] CPU: 0 PID: 3100 Comm: syz.2.65 Tainted: G W syzkaller #0 [ 55.323925][ T3100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.325556][ T3100] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.326949][ T3100] pc : read_block_bitmap+0xec/0x224 [ 55.327853][ T3100] lr : read_block_bitmap+0xe8/0x224 [ 55.328762][ T3100] sp : ffff80001286ba50 [ 55.329476][ T3100] x29: ffff80001286ba50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 55.330891][ T3100] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 55.332313][ T3100] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 55.333727][ T3100] x20: 0000000000000000 x19: ffff0000c9cb4000 x18: ffff80000a3f7ee1 [ 55.335139][ T3100] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.336602][ T3100] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.338012][ T3100] x11: 00000000ffffffce x10: ffff80000a901be4 x9 : ad6eb99caf35d600 [ 55.339406][ T3100] x8 : ad6eb99caf35d600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.340817][ T3100] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.342249][ T3100] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.343706][ T3100] Call trace: [ 55.344299][ T3100] read_block_bitmap+0xec/0x224 [ 55.345125][ T3100] ext2_free_blocks+0x104/0x368 [ 55.345949][ T3100] __ext2_truncate_blocks+0x154/0x550 [ 55.346877][ T3100] ext2_write_failed+0xa4/0xc0 [ 55.347681][ T3100] ext2_write_begin+0x54/0x6c [ 55.348484][ T3100] generic_perform_write+0x80/0x1e4 [ 55.349415][ T3100] __generic_file_write_iter+0x7c/0xc0 [ 55.350359][ T3100] generic_file_write_iter+0x50/0xd4 [ 55.351288][ T3100] ext2_file_write_iter+0x10/0x1c [ 55.352177][ T3100] vfs_write+0x1ac/0x2c4 [ 55.352929][ T3100] __arm64_sys_pwrite64+0x84/0xc8 [ 55.353792][ T3100] invoke_syscall+0x40/0xdc [ 55.354588][ T3100] el0_svc_common+0xb0/0xe8 [ 55.355409][ T3100] do_el0_svc+0x24/0x80 [ 55.356151][ T3100] el0_svc+0x34/0xd4 [ 55.356837][ T3100] el0t_64_sync_handler+0x84/0xf0 [ 55.357755][ T3100] el0t_64_sync+0x18c/0x190 [ 55.358546][ T3100] ---[ end trace 0000000000000000 ]--- [ 55.362360][ T3102] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 55.363606][ T3102] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 55.364853][ T3102] ext2 filesystem being mounted at /49/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.374538][ T3102] ------------[ cut here ]------------ [ 55.375439][ T3102] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.375450][ T3102] WARNING: CPU: 1 PID: 3102 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 55.378523][ T3102] Modules linked in: [ 55.379188][ T3102] CPU: 1 PID: 3102 Comm: syz.2.66 Tainted: G W syzkaller #0 [ 55.380744][ T3102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.382522][ T3102] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.383889][ T3102] pc : ext2_new_blocks+0x418/0x564 [ 55.384786][ T3102] lr : ext2_new_blocks+0x418/0x564 [ 55.385693][ T3102] sp : ffff8000128738f0 [ 55.386423][ T3102] x29: ffff800012873940 x28: 0000000000010000 x27: 0000000000000008 [ 55.387839][ T3102] x26: ffff0000cd5db400 x25: 0000000000010000 x24: ffff8000128739f4 [ 55.389230][ T3102] x23: ffff0000c5ec5000 x22: 0000000000000000 x21: ffff8000128739f8 [ 55.390619][ T3102] x20: ffff0000c48f1d80 x19: ffff0000c8ef2a58 x18: ffff80000a3f7ee1 [ 55.392060][ T3102] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.393515][ T3102] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.394912][ T3102] x11: 00000000fffffff8 x10: ffff80000a901be4 x9 : a5a282fd7a477300 [ 55.396301][ T3102] x8 : a5a282fd7a477300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.397723][ T3102] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.399169][ T3102] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 55.400596][ T3102] Call trace: [ 55.401176][ T3102] ext2_new_blocks+0x418/0x564 [ 55.402006][ T3102] ext2_get_blocks+0x4b4/0x9b0 [ 55.402833][ T3102] ext2_get_block+0x58/0x158 [ 55.403636][ T3102] __block_write_begin_int+0x10c/0x6f0 [ 55.404613][ T3102] block_write_begin+0x5c/0xa4 [ 55.405451][ T3102] ext2_write_begin+0x40/0x6c [ 55.406270][ T3102] generic_perform_write+0x80/0x1e4 [ 55.407186][ T3102] __generic_file_write_iter+0x7c/0xc0 [ 55.408147][ T3102] generic_file_write_iter+0x50/0xd4 [ 55.409098][ T3102] ext2_file_write_iter+0x10/0x1c [ 55.410004][ T3102] vfs_write+0x1ac/0x2c4 [ 55.410745][ T3102] __arm64_sys_pwrite64+0x84/0xc8 [ 55.411662][ T3102] invoke_syscall+0x40/0xdc [ 55.412444][ T3102] el0_svc_common+0xb0/0xe8 [ 55.413235][ T3102] do_el0_svc+0x24/0x80 [ 55.414010][ T3102] el0_svc+0x34/0xd4 [ 55.414690][ T3102] el0t_64_sync_handler+0x84/0xf0 [ 55.415570][ T3102] el0t_64_sync+0x18c/0x190 [ 55.416356][ T3102] ---[ end trace 0000000000000000 ]--- [ 55.417651][ T3102] ------------[ cut here ]------------ [ 55.418502][ T3102] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 55.418517][ T3102] WARNING: CPU: 1 PID: 3102 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.421119][ T3102] Modules linked in: [ 55.421683][ T3102] CPU: 1 PID: 3102 Comm: syz.2.66 Tainted: G W syzkaller #0 [ 55.422931][ T3102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.424432][ T3102] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.425797][ T3102] pc : read_block_bitmap+0xec/0x224 [ 55.426660][ T3102] lr : read_block_bitmap+0xe8/0x224 [ 55.427620][ T3102] sp : ffff800012873a50 [ 55.428352][ T3102] x29: ffff800012873a50 x28: ffff0000c4153c00 x27: 0000000000000000 [ 55.429762][ T3102] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 55.431118][ T3102] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 55.432539][ T3102] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: ffff80000a3f7ee1 [ 55.433954][ T3102] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.435329][ T3102] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.436715][ T3102] x11: 0000000100000020 x10: ffff80000a901be4 x9 : a5a282fd7a477300 [ 55.438126][ T3102] x8 : a5a282fd7a477300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.439494][ T3102] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.440872][ T3102] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.442298][ T3102] Call trace: [ 55.442866][ T3102] read_block_bitmap+0xec/0x224 [ 55.443719][ T3102] ext2_free_blocks+0x104/0x368 [ 55.444571][ T3102] __ext2_truncate_blocks+0xb8/0x550 [ 55.445539][ T3102] ext2_write_failed+0xa4/0xc0 [ 55.446361][ T3102] ext2_write_begin+0x54/0x6c [ 55.447192][ T3102] generic_perform_write+0x80/0x1e4 [ 55.448065][ T3102] __generic_file_write_iter+0x7c/0xc0 [ 55.449000][ T3102] generic_file_write_iter+0x50/0xd4 [ 55.449895][ T3102] ext2_file_write_iter+0x10/0x1c [ 55.450760][ T3102] vfs_write+0x1ac/0x2c4 [ 55.451466][ T3102] __arm64_sys_pwrite64+0x84/0xc8 [ 55.452354][ T3102] invoke_syscall+0x40/0xdc [ 55.453123][ T3102] el0_svc_common+0xb0/0xe8 [ 55.453914][ T3102] do_el0_svc+0x24/0x80 [ 55.454654][ T3102] el0_svc+0x34/0xd4 [ 55.455368][ T3102] el0t_64_sync_handler+0x84/0xf0 [ 55.456270][ T3102] el0t_64_sync+0x18c/0x190 [ 55.457042][ T3102] ---[ end trace 0000000000000000 ]--- [ 55.458022][ T3102] ------------[ cut here ]------------ [ 55.458904][ T3102] block_group >= groups_count - block_group = 3, groups_count = 1 [ 55.458953][ T3102] WARNING: CPU: 1 PID: 3102 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.462065][ T3102] Modules linked in: [ 55.462743][ T3102] CPU: 1 PID: 3102 Comm: syz.2.66 Tainted: G W syzkaller #0 [ 55.464269][ T3102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.466022][ T3102] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.467444][ T3102] pc : read_block_bitmap+0xec/0x224 [ 55.468347][ T3102] lr : read_block_bitmap+0xe8/0x224 [ 55.469240][ T3102] sp : ffff800012873a50 [ 55.469955][ T3102] x29: ffff800012873a50 x28: ffff0000c4153c00 x27: 0000000000000000 [ 55.471407][ T3102] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 55.472844][ T3102] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 55.474281][ T3102] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: 0000000000000000 [ 55.475687][ T3102] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 55.477182][ T3102] x14: 00000000000f6d97 x13: 0000000002babbb6 x12: ffff80000e90c000 [ 55.478823][ T3102] x11: 0000000000000004 x10: 00000000ffffffff x9 : a5a282fd7a477300 [ 55.480269][ T3102] x8 : a5a282fd7a477300 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 55.481789][ T3102] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.483304][ T3102] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 55.484752][ T3102] Call trace: [ 55.485363][ T3102] read_block_bitmap+0xec/0x224 [ 55.486246][ T3102] ext2_free_blocks+0x104/0x368 [ 55.487123][ T3102] __ext2_truncate_blocks+0xb8/0x550 [ 55.488051][ T3102] ext2_write_failed+0xa4/0xc0 [ 55.488876][ T3102] ext2_write_begin+0x54/0x6c [ 55.489704][ T3102] generic_perform_write+0x80/0x1e4 [ 55.490605][ T3102] __generic_file_write_iter+0x7c/0xc0 [ 55.491582][ T3102] generic_file_write_iter+0x50/0xd4 [ 55.492528][ T3102] ext2_file_write_iter+0x10/0x1c [ 55.493449][ T3102] vfs_write+0x1ac/0x2c4 [ 55.494192][ T3102] __arm64_sys_pwrite64+0x84/0xc8 [ 55.495088][ T3102] invoke_syscall+0x40/0xdc [ 55.495886][ T3102] el0_svc_common+0xb0/0xe8 [ 55.496689][ T3102] do_el0_svc+0x24/0x80 [ 55.497447][ T3102] el0_svc+0x34/0xd4 [ 55.498148][ T3102] el0t_64_sync_handler+0x84/0xf0 [ 55.499036][ T3102] el0t_64_sync+0x18c/0x190 [ 55.499818][ T3102] ---[ end trace 0000000000000000 ]--- [ 55.500890][ T3102] ------------[ cut here ]------------ [ 55.501776][ T3102] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.501820][ T3102] WARNING: CPU: 0 PID: 3102 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.504617][ T3102] Modules linked in: [ 55.505225][ T3102] CPU: 0 PID: 3102 Comm: syz.2.66 Tainted: G W syzkaller #0 [ 55.506793][ T3102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.508608][ T3102] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.510018][ T3102] pc : read_block_bitmap+0xec/0x224 [ 55.510984][ T3102] lr : read_block_bitmap+0xe8/0x224 [ 55.511919][ T3102] sp : ffff800012873a50 [ 55.512644][ T3102] x29: ffff800012873a50 x28: ffff0000c4153c00 x27: 0000000000000000 [ 55.514072][ T3102] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 55.515493][ T3102] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 55.516923][ T3102] x20: 0000000000000000 x19: ffff0000c5ec5000 x18: 0000000000000001 [ 55.518352][ T3102] x17: 0000000000000000 x16: 0000000000000078 x15: 0000000000000a64 [ 55.519778][ T3102] x14: 00000000000f6ade x13: 0000000000000001 x12: ffff80000e90c000 [ 55.521206][ T3102] x11: 0000000000000004 x10: 00000000ffffffff x9 : a5a282fd7a477300 [ 55.522615][ T3102] x8 : a5a282fd7a477300 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 55.523974][ T3102] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.525323][ T3102] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 55.526714][ T3102] Call trace: [ 55.527277][ T3102] read_block_bitmap+0xec/0x224 [ 55.528106][ T3102] ext2_free_blocks+0x104/0x368 [ 55.528943][ T3102] __ext2_truncate_blocks+0x154/0x550 [ 55.529888][ T3102] ext2_write_failed+0xa4/0xc0 [ 55.530710][ T3102] ext2_write_begin+0x54/0x6c [ 55.531510][ T3102] generic_perform_write+0x80/0x1e4 [ 55.532426][ T3102] __generic_file_write_iter+0x7c/0xc0 [ 55.533391][ T3102] generic_file_write_iter+0x50/0xd4 [ 55.534357][ T3102] ext2_file_write_iter+0x10/0x1c [ 55.535243][ T3102] vfs_write+0x1ac/0x2c4 [ 55.535988][ T3102] __arm64_sys_pwrite64+0x84/0xc8 [ 55.536880][ T3102] invoke_syscall+0x40/0xdc [ 55.537662][ T3102] el0_svc_common+0xb0/0xe8 [ 55.538451][ T3102] do_el0_svc+0x24/0x80 [ 55.539174][ T3102] el0_svc+0x34/0xd4 [ 55.539858][ T3102] el0t_64_sync_handler+0x84/0xf0 [ 55.540748][ T3102] el0t_64_sync+0x18c/0x190 [ 55.541536][ T3102] ---[ end trace 0000000000000000 ]--- [ 55.548438][ T3104] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 55.549595][ T3104] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 55.550867][ T3104] ext2 filesystem being mounted at /50/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.562668][ T3104] ------------[ cut here ]------------ [ 55.563666][ T3104] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.563681][ T3104] WARNING: CPU: 1 PID: 3104 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 55.566347][ T3104] Modules linked in: [ 55.567021][ T3104] CPU: 1 PID: 3104 Comm: syz.2.67 Tainted: G W syzkaller #0 [ 55.568556][ T3104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.570335][ T3104] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.571708][ T3104] pc : ext2_new_blocks+0x418/0x564 [ 55.572609][ T3104] lr : ext2_new_blocks+0x418/0x564 [ 55.573484][ T3104] sp : ffff8000128938f0 [ 55.574197][ T3104] x29: ffff800012893940 x28: 0000000000010000 x27: 0000000000000008 [ 55.575599][ T3104] x26: ffff0000cd5a6400 x25: 0000000000010000 x24: ffff8000128939f4 [ 55.576950][ T3104] x23: ffff0000c9cb3000 x22: 0000000000000000 x21: ffff8000128939f8 [ 55.578332][ T3104] x20: ffff0000c5f42800 x19: ffff0000c8ef18b8 x18: ffff80000a3f7ee1 [ 55.579761][ T3104] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.581173][ T3104] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.582584][ T3104] x11: 0000000100000098 x10: ffff80000a901be4 x9 : 25e2372e6d5efb00 [ 55.583971][ T3104] x8 : 25e2372e6d5efb00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.585362][ T3104] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.586744][ T3104] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 55.588123][ T3104] Call trace: [ 55.588674][ T3104] ext2_new_blocks+0x418/0x564 [ 55.589489][ T3104] ext2_get_blocks+0x4b4/0x9b0 [ 55.590313][ T3104] ext2_get_block+0x58/0x158 [ 55.591092][ T3104] __block_write_begin_int+0x10c/0x6f0 [ 55.592034][ T3104] block_write_begin+0x5c/0xa4 [ 55.592853][ T3104] ext2_write_begin+0x40/0x6c [ 55.593658][ T3104] generic_perform_write+0x80/0x1e4 [ 55.594566][ T3104] __generic_file_write_iter+0x7c/0xc0 [ 55.595522][ T3104] generic_file_write_iter+0x50/0xd4 [ 55.596433][ T3104] ext2_file_write_iter+0x10/0x1c [ 55.597293][ T3104] vfs_write+0x1ac/0x2c4 [ 55.598017][ T3104] __arm64_sys_pwrite64+0x84/0xc8 [ 55.598871][ T3104] invoke_syscall+0x40/0xdc [ 55.599639][ T3104] el0_svc_common+0xb0/0xe8 [ 55.600410][ T3104] do_el0_svc+0x24/0x80 [ 55.601137][ T3104] el0_svc+0x34/0xd4 [ 55.601809][ T3104] el0t_64_sync_handler+0x84/0xf0 [ 55.602668][ T3104] el0t_64_sync+0x18c/0x190 [ 55.603468][ T3104] ---[ end trace 0000000000000000 ]--- [ 55.604781][ T3104] ------------[ cut here ]------------ [ 55.605798][ T3104] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 55.605835][ T3104] WARNING: CPU: 1 PID: 3104 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.608710][ T3104] Modules linked in: [ 55.609377][ T3104] CPU: 1 PID: 3104 Comm: syz.2.67 Tainted: G W syzkaller #0 [ 55.610744][ T3104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.612402][ T3104] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.613632][ T3104] pc : read_block_bitmap+0xec/0x224 [ 55.614452][ T3104] lr : read_block_bitmap+0xe8/0x224 [ 55.615332][ T3104] sp : ffff800012893a50 [ 55.616082][ T3104] x29: ffff800012893a50 x28: ffff0000c5eea400 x27: 0000000000000000 [ 55.617550][ T3104] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 55.618989][ T3104] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 55.620422][ T3104] x20: 0000000000000000 x19: ffff0000c9cb3000 x18: 0000000000006000 [ 55.621865][ T3104] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000196 [ 55.623220][ T3104] x14: 00000000000c3177 x13: 0000000002896ffb x12: ffff80000e90c000 [ 55.624599][ T3104] x11: 0000000000000004 x10: 00000000ffffffff x9 : 25e2372e6d5efb00 [ 55.626007][ T3104] x8 : 25e2372e6d5efb00 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 55.627421][ T3104] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.628790][ T3104] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 55.630135][ T3104] Call trace: [ 55.630670][ T3104] read_block_bitmap+0xec/0x224 [ 55.631477][ T3104] ext2_free_blocks+0x104/0x368 [ 55.632302][ T3104] __ext2_truncate_blocks+0xb8/0x550 [ 55.633194][ T3104] ext2_write_failed+0xa4/0xc0 [ 55.634009][ T3104] ext2_write_begin+0x54/0x6c [ 55.634818][ T3104] generic_perform_write+0x80/0x1e4 [ 55.635709][ T3104] __generic_file_write_iter+0x7c/0xc0 [ 55.636643][ T3104] generic_file_write_iter+0x50/0xd4 [ 55.637553][ T3104] ext2_file_write_iter+0x10/0x1c [ 55.638416][ T3104] vfs_write+0x1ac/0x2c4 [ 55.639139][ T3104] __arm64_sys_pwrite64+0x84/0xc8 [ 55.640007][ T3104] invoke_syscall+0x40/0xdc [ 55.640775][ T3104] el0_svc_common+0xb0/0xe8 [ 55.641584][ T3104] do_el0_svc+0x24/0x80 [ 55.642283][ T3104] el0_svc+0x34/0xd4 [ 55.642944][ T3104] el0t_64_sync_handler+0x84/0xf0 [ 55.643795][ T3104] el0t_64_sync+0x18c/0x190 [ 55.644589][ T3104] ---[ end trace 0000000000000000 ]--- [ 55.645991][ T3104] ------------[ cut here ]------------ [ 55.646838][ T3104] block_group >= groups_count - block_group = 3, groups_count = 1 [ 55.646851][ T3104] WARNING: CPU: 1 PID: 3104 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.649468][ T3104] Modules linked in: [ 55.650089][ T3104] CPU: 1 PID: 3104 Comm: syz.2.67 Tainted: G W syzkaller #0 [ 55.651490][ T3104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.652964][ T3104] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.654151][ T3104] pc : read_block_bitmap+0xec/0x224 [ 55.654918][ T3104] lr : read_block_bitmap+0xe8/0x224 [ 55.655691][ T3104] sp : ffff800012893a50 [ 55.656392][ T3104] x29: ffff800012893a50 x28: ffff0000c5eea400 x27: 0000000000000000 [ 55.657795][ T3104] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 55.659189][ T3104] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 55.660590][ T3104] x20: 0000000000000000 x19: ffff0000c9cb3000 x18: ffff80000a3f7ee1 [ 55.661971][ T3104] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.663372][ T3104] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.664786][ T3104] x11: 00000001000000e7 x10: ffff80000a901be4 x9 : 25e2372e6d5efb00 [ 55.666184][ T3104] x8 : 25e2372e6d5efb00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.667619][ T3104] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.669027][ T3104] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.670405][ T3104] Call trace: [ 55.670977][ T3104] read_block_bitmap+0xec/0x224 [ 55.671799][ T3104] ext2_free_blocks+0x104/0x368 [ 55.672623][ T3104] __ext2_truncate_blocks+0xb8/0x550 [ 55.673529][ T3104] ext2_write_failed+0xa4/0xc0 [ 55.674371][ T3104] ext2_write_begin+0x54/0x6c [ 55.675192][ T3104] generic_perform_write+0x80/0x1e4 [ 55.676097][ T3104] __generic_file_write_iter+0x7c/0xc0 [ 55.677035][ T3104] generic_file_write_iter+0x50/0xd4 [ 55.677964][ T3104] ext2_file_write_iter+0x10/0x1c [ 55.678826][ T3104] vfs_write+0x1ac/0x2c4 [ 55.679575][ T3104] __arm64_sys_pwrite64+0x84/0xc8 [ 55.680470][ T3104] invoke_syscall+0x40/0xdc [ 55.681258][ T3104] el0_svc_common+0xb0/0xe8 [ 55.682046][ T3104] do_el0_svc+0x24/0x80 [ 55.682768][ T3104] el0_svc+0x34/0xd4 [ 55.683459][ T3104] el0t_64_sync_handler+0x84/0xf0 [ 55.684342][ T3104] el0t_64_sync+0x18c/0x190 [ 55.685122][ T3104] ---[ end trace 0000000000000000 ]--- [ 55.686266][ T3104] ------------[ cut here ]------------ [ 55.687098][ T3104] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.687110][ T3104] WARNING: CPU: 1 PID: 3104 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.689642][ T3104] Modules linked in: [ 55.690221][ T3104] CPU: 1 PID: 3104 Comm: syz.2.67 Tainted: G W syzkaller #0 [ 55.691494][ T3104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.693048][ T3104] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.694252][ T3104] pc : read_block_bitmap+0xec/0x224 [ 55.695058][ T3104] lr : read_block_bitmap+0xe8/0x224 [ 55.695921][ T3104] sp : ffff800012893a50 [ 55.696663][ T3104] x29: ffff800012893a50 x28: ffff0000c5eea400 x27: 0000000000000000 [ 55.698089][ T3104] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 55.699501][ T3104] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 55.700915][ T3104] x20: 0000000000000000 x19: ffff0000c9cb3000 x18: ffff80000a3f7ee1 [ 55.702307][ T3104] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.703717][ T3104] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.705123][ T3104] x11: 000000010000010e x10: ffff80000a901be4 x9 : 25e2372e6d5efb00 [ 55.706516][ T3104] x8 : 25e2372e6d5efb00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.707887][ T3104] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.709251][ T3104] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.710600][ T3104] Call trace: [ 55.711148][ T3104] read_block_bitmap+0xec/0x224 [ 55.711958][ T3104] ext2_free_blocks+0x104/0x368 [ 55.712836][ T3104] __ext2_truncate_blocks+0x154/0x550 [ 55.713749][ T3104] ext2_write_failed+0xa4/0xc0 [ 55.714581][ T3104] ext2_write_begin+0x54/0x6c [ 55.715392][ T3104] generic_perform_write+0x80/0x1e4 [ 55.716326][ T3104] __generic_file_write_iter+0x7c/0xc0 [ 55.717274][ T3104] generic_file_write_iter+0x50/0xd4 [ 55.718205][ T3104] ext2_file_write_iter+0x10/0x1c [ 55.719105][ T3104] vfs_write+0x1ac/0x2c4 [ 55.719853][ T3104] __arm64_sys_pwrite64+0x84/0xc8 [ 55.720744][ T3104] invoke_syscall+0x40/0xdc [ 55.721544][ T3104] el0_svc_common+0xb0/0xe8 [ 55.722342][ T3104] do_el0_svc+0x24/0x80 [ 55.723044][ T3104] el0_svc+0x34/0xd4 [ 55.723718][ T3104] el0t_64_sync_handler+0x84/0xf0 [ 55.724593][ T3104] el0t_64_sync+0x18c/0x190 [ 55.725385][ T3104] ---[ end trace 0000000000000000 ]--- [ 55.729520][ T3106] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 55.731035][ T3106] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 55.733272][ T3106] ext2 filesystem being mounted at /51/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.740630][ T3106] ------------[ cut here ]------------ [ 55.741465][ T3106] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.741480][ T3106] WARNING: CPU: 0 PID: 3106 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 55.744067][ T3106] Modules linked in: [ 55.744621][ T3106] CPU: 0 PID: 3106 Comm: syz.2.68 Tainted: G W syzkaller #0 [ 55.745947][ T3106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.747668][ T3106] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.749044][ T3106] pc : ext2_new_blocks+0x418/0x564 [ 55.749919][ T3106] lr : ext2_new_blocks+0x418/0x564 [ 55.750754][ T3106] sp : ffff80001286b8f0 [ 55.751445][ T3106] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 55.752783][ T3106] x26: ffff0000cd568400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 55.754127][ T3106] x23: ffff0000c9cb2000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 55.755459][ T3106] x20: ffff0000c9451400 x19: ffff0000c8e7a478 x18: ffff80000a3f7ee1 [ 55.756756][ T3106] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.758058][ T3106] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.759398][ T3106] x11: 0000000100000138 x10: ffff80000a901be4 x9 : 50fbe6b27b4f0400 [ 55.760728][ T3106] x8 : 50fbe6b27b4f0400 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.762076][ T3106] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.763414][ T3106] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 55.764759][ T3106] Call trace: [ 55.765314][ T3106] ext2_new_blocks+0x418/0x564 [ 55.766140][ T3106] ext2_get_blocks+0x4b4/0x9b0 [ 55.767001][ T3106] ext2_get_block+0x58/0x158 [ 55.767838][ T3106] __block_write_begin_int+0x10c/0x6f0 [ 55.768807][ T3106] block_write_begin+0x5c/0xa4 [ 55.769638][ T3106] ext2_write_begin+0x40/0x6c [ 55.770457][ T3106] generic_perform_write+0x80/0x1e4 [ 55.771365][ T3106] __generic_file_write_iter+0x7c/0xc0 [ 55.772324][ T3106] generic_file_write_iter+0x50/0xd4 [ 55.773236][ T3106] ext2_file_write_iter+0x10/0x1c [ 55.774114][ T3106] vfs_write+0x1ac/0x2c4 [ 55.774851][ T3106] __arm64_sys_pwrite64+0x84/0xc8 [ 55.775736][ T3106] invoke_syscall+0x40/0xdc [ 55.776503][ T3106] el0_svc_common+0xb0/0xe8 [ 55.777278][ T3106] do_el0_svc+0x24/0x80 [ 55.777988][ T3106] el0_svc+0x34/0xd4 [ 55.778650][ T3106] el0t_64_sync_handler+0x84/0xf0 [ 55.779534][ T3106] el0t_64_sync+0x18c/0x190 [ 55.780323][ T3106] ---[ end trace 0000000000000000 ]--- [ 55.781586][ T3106] ------------[ cut here ]------------ [ 55.782530][ T3106] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 55.782542][ T3106] WARNING: CPU: 0 PID: 3106 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.785352][ T3106] Modules linked in: [ 55.786004][ T3106] CPU: 0 PID: 3106 Comm: syz.2.68 Tainted: G W syzkaller #0 [ 55.787550][ T3106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.789367][ T3106] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.790772][ T3106] pc : read_block_bitmap+0xec/0x224 [ 55.791712][ T3106] lr : read_block_bitmap+0xe8/0x224 [ 55.792646][ T3106] sp : ffff80001286ba50 [ 55.793380][ T3106] x29: ffff80001286ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 55.794815][ T3106] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 55.796232][ T3106] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 55.797651][ T3106] x20: 0000000000000000 x19: ffff0000c9cb2000 x18: ffff80000a3f7ee1 [ 55.799089][ T3106] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.800550][ T3106] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.802054][ T3106] x11: 0000000100000160 x10: ffff80000a901be4 x9 : 50fbe6b27b4f0400 [ 55.803530][ T3106] x8 : 50fbe6b27b4f0400 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.804999][ T3106] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.806488][ T3106] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.807973][ T3106] Call trace: [ 55.808568][ T3106] read_block_bitmap+0xec/0x224 [ 55.809461][ T3106] ext2_free_blocks+0x104/0x368 [ 55.810356][ T3106] __ext2_truncate_blocks+0xb8/0x550 [ 55.811327][ T3106] ext2_write_failed+0xa4/0xc0 [ 55.812192][ T3106] ext2_write_begin+0x54/0x6c [ 55.813046][ T3106] generic_perform_write+0x80/0x1e4 [ 55.813995][ T3106] __generic_file_write_iter+0x7c/0xc0 [ 55.814983][ T3106] generic_file_write_iter+0x50/0xd4 [ 55.815939][ T3106] ext2_file_write_iter+0x10/0x1c [ 55.816827][ T3106] vfs_write+0x1ac/0x2c4 [ 55.817601][ T3106] __arm64_sys_pwrite64+0x84/0xc8 [ 55.818509][ T3106] invoke_syscall+0x40/0xdc [ 55.819313][ T3106] el0_svc_common+0xb0/0xe8 [ 55.820104][ T3106] do_el0_svc+0x24/0x80 [ 55.820836][ T3106] el0_svc+0x34/0xd4 [ 55.821531][ T3106] el0t_64_sync_handler+0x84/0xf0 [ 55.822435][ T3106] el0t_64_sync+0x18c/0x190 [ 55.823242][ T3106] ---[ end trace 0000000000000000 ]--- [ 55.824229][ T3106] ------------[ cut here ]------------ [ 55.825124][ T3106] block_group >= groups_count - block_group = 3, groups_count = 1 [ 55.825138][ T3106] WARNING: CPU: 0 PID: 3106 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.828131][ T3106] Modules linked in: [ 55.828801][ T3106] CPU: 0 PID: 3106 Comm: syz.2.68 Tainted: G W syzkaller #0 [ 55.830330][ T3106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.832098][ T3106] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.833461][ T3106] pc : read_block_bitmap+0xec/0x224 [ 55.834391][ T3106] lr : read_block_bitmap+0xe8/0x224 [ 55.835306][ T3106] sp : ffff80001286ba50 [ 55.836044][ T3106] x29: ffff80001286ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 55.837457][ T3106] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 55.838884][ T3106] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 55.840324][ T3106] x20: 0000000000000000 x19: ffff0000c9cb2000 x18: ffff80000a3f7ee1 [ 55.841772][ T3106] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.843203][ T3106] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.844606][ T3106] x11: 0000000100000187 x10: ffff80000a901be4 x9 : 50fbe6b27b4f0400 [ 55.846048][ T3106] x8 : 50fbe6b27b4f0400 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.847494][ T3106] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.848923][ T3106] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.850347][ T3106] Call trace: [ 55.850912][ T3106] read_block_bitmap+0xec/0x224 [ 55.851785][ T3106] ext2_free_blocks+0x104/0x368 [ 55.852652][ T3106] __ext2_truncate_blocks+0xb8/0x550 [ 55.853588][ T3106] ext2_write_failed+0xa4/0xc0 [ 55.854425][ T3106] ext2_write_begin+0x54/0x6c [ 55.855226][ T3106] generic_perform_write+0x80/0x1e4 [ 55.856135][ T3106] __generic_file_write_iter+0x7c/0xc0 [ 55.857091][ T3106] generic_file_write_iter+0x50/0xd4 [ 55.858022][ T3106] ext2_file_write_iter+0x10/0x1c [ 55.858900][ T3106] vfs_write+0x1ac/0x2c4 [ 55.859642][ T3106] __arm64_sys_pwrite64+0x84/0xc8 [ 55.860518][ T3106] invoke_syscall+0x40/0xdc [ 55.861291][ T3106] el0_svc_common+0xb0/0xe8 [ 55.862089][ T3106] do_el0_svc+0x24/0x80 [ 55.862807][ T3106] el0_svc+0x34/0xd4 [ 55.863484][ T3106] el0t_64_sync_handler+0x84/0xf0 [ 55.864369][ T3106] el0t_64_sync+0x18c/0x190 [ 55.865180][ T3106] ---[ end trace 0000000000000000 ]--- [ 55.866431][ T3106] ------------[ cut here ]------------ [ 55.867260][ T3106] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.867271][ T3106] WARNING: CPU: 0 PID: 3106 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.869898][ T3106] Modules linked in: [ 55.870482][ T3106] CPU: 0 PID: 3106 Comm: syz.2.68 Tainted: G W syzkaller #0 [ 55.871806][ T3106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.873382][ T3106] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.874600][ T3106] pc : read_block_bitmap+0xec/0x224 [ 55.875414][ T3106] lr : read_block_bitmap+0xe8/0x224 [ 55.876325][ T3106] sp : ffff80001286ba50 [ 55.877071][ T3106] x29: ffff80001286ba50 x28: ffff0000c5ee9c00 x27: 0000000000000000 [ 55.878499][ T3106] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 55.879939][ T3106] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 55.881369][ T3106] x20: 0000000000000000 x19: ffff0000c9cb2000 x18: ffff80000a3f7ee1 [ 55.882802][ T3106] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.884263][ T3106] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.885659][ T3106] x11: 00000001000001ae x10: ffff80000a901be4 x9 : 50fbe6b27b4f0400 [ 55.887061][ T3106] x8 : 50fbe6b27b4f0400 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.888501][ T3106] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.889907][ T3106] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.891321][ T3106] Call trace: [ 55.891885][ T3106] read_block_bitmap+0xec/0x224 [ 55.892724][ T3106] ext2_free_blocks+0x104/0x368 [ 55.893571][ T3106] __ext2_truncate_blocks+0x154/0x550 [ 55.894483][ T3106] ext2_write_failed+0xa4/0xc0 [ 55.895298][ T3106] ext2_write_begin+0x54/0x6c [ 55.896115][ T3106] generic_perform_write+0x80/0x1e4 [ 55.897032][ T3106] __generic_file_write_iter+0x7c/0xc0 [ 55.898001][ T3106] generic_file_write_iter+0x50/0xd4 [ 55.898936][ T3106] ext2_file_write_iter+0x10/0x1c [ 55.899819][ T3106] vfs_write+0x1ac/0x2c4 [ 55.900583][ T3106] __arm64_sys_pwrite64+0x84/0xc8 [ 55.901514][ T3106] invoke_syscall+0x40/0xdc [ 55.902347][ T3106] el0_svc_common+0xb0/0xe8 [ 55.903155][ T3106] do_el0_svc+0x24/0x80 [ 55.903901][ T3106] el0_svc+0x34/0xd4 [ 55.904575][ T3106] el0t_64_sync_handler+0x84/0xf0 [ 55.905489][ T3106] el0t_64_sync+0x18c/0x190 [ 55.906311][ T3106] ---[ end trace 0000000000000000 ]--- [ 55.912479][ T3108] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 55.913731][ T3108] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 55.915527][ T3108] ext2 filesystem being mounted at /52/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.926044][ T3108] ------------[ cut here ]------------ [ 55.927013][ T3108] block_group >= groups_count - block_group = 7, groups_count = 1 [ 55.927026][ T3108] WARNING: CPU: 1 PID: 3108 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 55.929673][ T3108] Modules linked in: [ 55.930297][ T3108] CPU: 1 PID: 3108 Comm: syz.2.69 Tainted: G W syzkaller #0 [ 55.931712][ T3108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.933316][ T3108] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.934555][ T3108] pc : ext2_new_blocks+0x418/0x564 [ 55.935358][ T3108] lr : ext2_new_blocks+0x418/0x564 [ 55.936253][ T3108] sp : ffff80001288b8f0 [ 55.936998][ T3108] x29: ffff80001288b940 x28: 0000000000010000 x27: 0000000000000008 [ 55.938453][ T3108] x26: ffff0000cd5a7400 x25: 0000000000010000 x24: ffff80001288b9f4 [ 55.939908][ T3108] x23: ffff0000c5ec1000 x22: 0000000000000000 x21: ffff80001288b9f8 [ 55.941370][ T3108] x20: ffff0000c5e94080 x19: ffff0000c8ef3038 x18: ffff80000a3f7ee1 [ 55.942840][ T3108] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.944278][ T3108] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.945705][ T3108] x11: 00000001000001d8 x10: ffff80000a901be4 x9 : 8fcadfb04fccd600 [ 55.947146][ T3108] x8 : 8fcadfb04fccd600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.948588][ T3108] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.950008][ T3108] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 55.951421][ T3108] Call trace: [ 55.951994][ T3108] ext2_new_blocks+0x418/0x564 [ 55.952849][ T3108] ext2_get_blocks+0x4b4/0x9b0 [ 55.953692][ T3108] ext2_get_block+0x58/0x158 [ 55.954496][ T3108] __block_write_begin_int+0x10c/0x6f0 [ 55.955446][ T3108] block_write_begin+0x5c/0xa4 [ 55.956288][ T3108] ext2_write_begin+0x40/0x6c [ 55.957112][ T3108] generic_perform_write+0x80/0x1e4 [ 55.958043][ T3108] __generic_file_write_iter+0x7c/0xc0 [ 55.959000][ T3108] generic_file_write_iter+0x50/0xd4 [ 55.959907][ T3108] ext2_file_write_iter+0x10/0x1c [ 55.960782][ T3108] vfs_write+0x1ac/0x2c4 [ 55.961516][ T3108] __arm64_sys_pwrite64+0x84/0xc8 [ 55.962407][ T3108] invoke_syscall+0x40/0xdc [ 55.963189][ T3108] el0_svc_common+0xb0/0xe8 [ 55.963971][ T3108] do_el0_svc+0x24/0x80 [ 55.964698][ T3108] el0_svc+0x34/0xd4 [ 55.965359][ T3108] el0t_64_sync_handler+0x84/0xf0 [ 55.966218][ T3108] el0t_64_sync+0x18c/0x190 [ 55.966994][ T3108] ---[ end trace 0000000000000000 ]--- [ 55.968282][ T3108] ------------[ cut here ]------------ [ 55.969223][ T3108] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 55.969235][ T3108] WARNING: CPU: 1 PID: 3108 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 55.972157][ T3108] Modules linked in: [ 55.972815][ T3108] CPU: 1 PID: 3108 Comm: syz.2.69 Tainted: G W syzkaller #0 [ 55.974260][ T3108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 55.976052][ T3108] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.977544][ T3108] pc : read_block_bitmap+0xec/0x224 [ 55.978549][ T3108] lr : read_block_bitmap+0xe8/0x224 [ 55.979522][ T3108] sp : ffff80001288ba50 [ 55.980296][ T3108] x29: ffff80001288ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 55.981828][ T3108] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 55.983304][ T3108] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 55.984753][ T3108] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 55.986196][ T3108] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 55.987621][ T3108] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 55.989121][ T3108] x11: 0000000100000200 x10: ffff80000a901be4 x9 : 8fcadfb04fccd600 [ 55.990571][ T3108] x8 : 8fcadfb04fccd600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 55.992025][ T3108] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 55.993490][ T3108] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 55.994962][ T3108] Call trace: [ 55.995547][ T3108] read_block_bitmap+0xec/0x224 [ 55.996411][ T3108] ext2_free_blocks+0x104/0x368 [ 55.997266][ T3108] __ext2_truncate_blocks+0xb8/0x550 [ 55.998190][ T3108] ext2_write_failed+0xa4/0xc0 [ 55.999033][ T3108] ext2_write_begin+0x54/0x6c [ 55.999858][ T3108] generic_perform_write+0x80/0x1e4 [ 56.000780][ T3108] __generic_file_write_iter+0x7c/0xc0 [ 56.001763][ T3108] generic_file_write_iter+0x50/0xd4 [ 56.002714][ T3108] ext2_file_write_iter+0x10/0x1c [ 56.003641][ T3108] vfs_write+0x1ac/0x2c4 [ 56.004423][ T3108] __arm64_sys_pwrite64+0x84/0xc8 [ 56.005312][ T3108] invoke_syscall+0x40/0xdc [ 56.006107][ T3108] el0_svc_common+0xb0/0xe8 [ 56.006904][ T3108] do_el0_svc+0x24/0x80 [ 56.007632][ T3108] el0_svc+0x34/0xd4 [ 56.008319][ T3108] el0t_64_sync_handler+0x84/0xf0 [ 56.009223][ T3108] el0t_64_sync+0x18c/0x190 [ 56.010013][ T3108] ---[ end trace 0000000000000000 ]--- [ 56.011459][ T3108] ------------[ cut here ]------------ [ 56.012359][ T3108] block_group >= groups_count - block_group = 3, groups_count = 1 [ 56.012370][ T3108] WARNING: CPU: 1 PID: 3108 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.015351][ T3108] Modules linked in: [ 56.016021][ T3108] CPU: 1 PID: 3108 Comm: syz.2.69 Tainted: G W syzkaller #0 [ 56.017521][ T3108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.019257][ T3108] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.020631][ T3108] pc : read_block_bitmap+0xec/0x224 [ 56.021564][ T3108] lr : read_block_bitmap+0xe8/0x224 [ 56.022497][ T3108] sp : ffff80001288ba50 [ 56.023244][ T3108] x29: ffff80001288ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 56.024685][ T3108] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 56.026101][ T3108] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 56.027514][ T3108] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: ffff80000a3f7ee1 [ 56.028948][ T3108] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.030418][ T3108] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.031842][ T3108] x11: 0000000100000227 x10: ffff80000a901be4 x9 : 8fcadfb04fccd600 [ 56.033266][ T3108] x8 : 8fcadfb04fccd600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.034674][ T3108] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.036101][ T3108] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.037529][ T3108] Call trace: [ 56.038099][ T3108] read_block_bitmap+0xec/0x224 [ 56.038963][ T3108] ext2_free_blocks+0x104/0x368 [ 56.039838][ T3108] __ext2_truncate_blocks+0xb8/0x550 [ 56.040798][ T3108] ext2_write_failed+0xa4/0xc0 [ 56.041630][ T3108] ext2_write_begin+0x54/0x6c [ 56.042452][ T3108] generic_perform_write+0x80/0x1e4 [ 56.043357][ T3108] __generic_file_write_iter+0x7c/0xc0 [ 56.044339][ T3108] generic_file_write_iter+0x50/0xd4 [ 56.045287][ T3108] ext2_file_write_iter+0x10/0x1c [ 56.046151][ T3108] vfs_write+0x1ac/0x2c4 [ 56.046890][ T3108] __arm64_sys_pwrite64+0x84/0xc8 [ 56.047768][ T3108] invoke_syscall+0x40/0xdc [ 56.048565][ T3108] el0_svc_common+0xb0/0xe8 [ 56.049369][ T3108] do_el0_svc+0x24/0x80 [ 56.050113][ T3108] el0_svc+0x34/0xd4 [ 56.050803][ T3108] el0t_64_sync_handler+0x84/0xf0 [ 56.051701][ T3108] el0t_64_sync+0x18c/0x190 [ 56.052506][ T3108] ---[ end trace 0000000000000000 ]--- [ 56.053477][ T3108] ------------[ cut here ]------------ [ 56.054313][ T3108] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.054414][ T3108] WARNING: CPU: 1 PID: 3108 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.057476][ T3108] Modules linked in: [ 56.058143][ T3108] CPU: 1 PID: 3108 Comm: syz.2.69 Tainted: G W syzkaller #0 [ 56.059736][ T3108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.061570][ T3108] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.062993][ T3108] pc : read_block_bitmap+0xec/0x224 [ 56.063927][ T3108] lr : read_block_bitmap+0xe8/0x224 [ 56.064833][ T3108] sp : ffff80001288ba50 [ 56.065561][ T3108] x29: ffff80001288ba50 x28: ffff0000c4150000 x27: 0000000000000000 [ 56.066964][ T3108] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 56.068385][ T3108] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 56.069813][ T3108] x20: 0000000000000000 x19: ffff0000c5ec1000 x18: 0000000000000000 [ 56.071293][ T3108] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 56.072772][ T3108] x14: 00000000000aff05 x13: 0000000002cb26be x12: ffff80000e90c000 [ 56.074194][ T3108] x11: 0000000000000004 x10: 00000000ffffffff x9 : 8fcadfb04fccd600 [ 56.075636][ T3108] x8 : 8fcadfb04fccd600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 56.077058][ T3108] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.078459][ T3108] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 56.079863][ T3108] Call trace: [ 56.080475][ T3108] read_block_bitmap+0xec/0x224 [ 56.081317][ T3108] ext2_free_blocks+0x104/0x368 [ 56.082146][ T3108] __ext2_truncate_blocks+0x154/0x550 [ 56.083099][ T3108] ext2_write_failed+0xa4/0xc0 [ 56.083913][ T3108] ext2_write_begin+0x54/0x6c [ 56.084739][ T3108] generic_perform_write+0x80/0x1e4 [ 56.085643][ T3108] __generic_file_write_iter+0x7c/0xc0 [ 56.086617][ T3108] generic_file_write_iter+0x50/0xd4 [ 56.087552][ T3108] ext2_file_write_iter+0x10/0x1c [ 56.088429][ T3108] vfs_write+0x1ac/0x2c4 [ 56.089162][ T3108] __arm64_sys_pwrite64+0x84/0xc8 [ 56.090053][ T3108] invoke_syscall+0x40/0xdc [ 56.090834][ T3108] el0_svc_common+0xb0/0xe8 [ 56.091617][ T3108] do_el0_svc+0x24/0x80 [ 56.092349][ T3108] el0_svc+0x34/0xd4 [ 56.093021][ T3108] el0t_64_sync_handler+0x84/0xf0 [ 56.093861][ T3108] el0t_64_sync+0x18c/0x190 [ 56.094619][ T3108] ---[ end trace 0000000000000000 ]--- [ 56.101140][ T3110] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 56.102377][ T3110] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 56.103666][ T3110] ext2 filesystem being mounted at /53/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.112706][ T3110] ------------[ cut here ]------------ [ 56.113665][ T3110] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.113680][ T3110] WARNING: CPU: 1 PID: 3110 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 56.116519][ T3110] Modules linked in: [ 56.117248][ T3110] CPU: 1 PID: 3110 Comm: syz.2.70 Tainted: G W syzkaller #0 [ 56.118786][ T3110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.120581][ T3110] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.122019][ T3110] pc : ext2_new_blocks+0x418/0x564 [ 56.122952][ T3110] lr : ext2_new_blocks+0x418/0x564 [ 56.123861][ T3110] sp : ffff8000128938f0 [ 56.124609][ T3110] x29: ffff800012893940 x28: 0000000000010000 x27: 0000000000000008 [ 56.126077][ T3110] x26: ffff0000cd57d400 x25: 0000000000010000 x24: ffff8000128939f4 [ 56.127520][ T3110] x23: ffff0000c5ec6000 x22: 0000000000000000 x21: ffff8000128939f8 [ 56.128961][ T3110] x20: ffff0000c5e94000 x19: ffff0000c8ef0cf8 x18: ffff80000a3f7ee1 [ 56.130388][ T3110] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.131809][ T3110] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.133282][ T3110] x11: 0000000100000278 x10: ffff80000a901be4 x9 : 6053a75b74cee300 [ 56.134768][ T3110] x8 : 6053a75b74cee300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.136200][ T3110] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.137644][ T3110] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 56.139049][ T3110] Call trace: [ 56.139615][ T3110] ext2_new_blocks+0x418/0x564 [ 56.140444][ T3110] ext2_get_blocks+0x4b4/0x9b0 [ 56.141267][ T3110] ext2_get_block+0x58/0x158 [ 56.142049][ T3110] __block_write_begin_int+0x10c/0x6f0 [ 56.142931][ T3110] block_write_begin+0x5c/0xa4 [ 56.143748][ T3110] ext2_write_begin+0x40/0x6c [ 56.144555][ T3110] generic_perform_write+0x80/0x1e4 [ 56.145468][ T3110] __generic_file_write_iter+0x7c/0xc0 [ 56.146408][ T3110] generic_file_write_iter+0x50/0xd4 [ 56.147324][ T3110] ext2_file_write_iter+0x10/0x1c [ 56.148200][ T3110] vfs_write+0x1ac/0x2c4 [ 56.148925][ T3110] __arm64_sys_pwrite64+0x84/0xc8 [ 56.149812][ T3110] invoke_syscall+0x40/0xdc [ 56.150601][ T3110] el0_svc_common+0xb0/0xe8 [ 56.151400][ T3110] do_el0_svc+0x24/0x80 [ 56.152179][ T3110] el0_svc+0x34/0xd4 [ 56.152882][ T3110] el0t_64_sync_handler+0x84/0xf0 [ 56.153762][ T3110] el0t_64_sync+0x18c/0x190 [ 56.154573][ T3110] ---[ end trace 0000000000000000 ]--- [ 56.155854][ T3110] ------------[ cut here ]------------ [ 56.156813][ T3110] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 56.156825][ T3110] WARNING: CPU: 1 PID: 3110 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.159725][ T3110] Modules linked in: [ 56.160357][ T3110] CPU: 1 PID: 3110 Comm: syz.2.70 Tainted: G W syzkaller #0 [ 56.161789][ T3110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.163531][ T3110] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.164978][ T3110] pc : read_block_bitmap+0xec/0x224 [ 56.165927][ T3110] lr : read_block_bitmap+0xe8/0x224 [ 56.166834][ T3110] sp : ffff800012893a50 [ 56.167574][ T3110] x29: ffff800012893a50 x28: ffff0000c4151000 x27: 0000000000000000 [ 56.168968][ T3110] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 56.170355][ T3110] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 56.171750][ T3110] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 56.173138][ T3110] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.174495][ T3110] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.175867][ T3110] x11: 00000001000002a0 x10: ffff80000a901be4 x9 : 6053a75b74cee300 [ 56.177265][ T3110] x8 : 6053a75b74cee300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.178649][ T3110] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.180068][ T3110] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.181492][ T3110] Call trace: [ 56.182062][ T3110] read_block_bitmap+0xec/0x224 [ 56.182913][ T3110] ext2_free_blocks+0x104/0x368 [ 56.183764][ T3110] __ext2_truncate_blocks+0xb8/0x550 [ 56.184706][ T3110] ext2_write_failed+0xa4/0xc0 [ 56.185554][ T3110] ext2_write_begin+0x54/0x6c [ 56.186370][ T3110] generic_perform_write+0x80/0x1e4 [ 56.187275][ T3110] __generic_file_write_iter+0x7c/0xc0 [ 56.188219][ T3110] generic_file_write_iter+0x50/0xd4 [ 56.189120][ T3110] ext2_file_write_iter+0x10/0x1c [ 56.189977][ T3110] vfs_write+0x1ac/0x2c4 [ 56.190699][ T3110] __arm64_sys_pwrite64+0x84/0xc8 [ 56.191560][ T3110] invoke_syscall+0x40/0xdc [ 56.192335][ T3110] el0_svc_common+0xb0/0xe8 [ 56.193097][ T3110] do_el0_svc+0x24/0x80 [ 56.193808][ T3110] el0_svc+0x34/0xd4 [ 56.194492][ T3110] el0t_64_sync_handler+0x84/0xf0 [ 56.195406][ T3110] el0t_64_sync+0x18c/0x190 [ 56.196187][ T3110] ---[ end trace 0000000000000000 ]--- [ 56.197223][ T3110] ------------[ cut here ]------------ [ 56.198077][ T3110] block_group >= groups_count - block_group = 3, groups_count = 1 [ 56.198088][ T3110] WARNING: CPU: 1 PID: 3110 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.200794][ T3110] Modules linked in: [ 56.201387][ T3110] CPU: 1 PID: 3110 Comm: syz.2.70 Tainted: G W syzkaller #0 [ 56.202756][ T3110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.204301][ T3110] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.205464][ T3110] pc : read_block_bitmap+0xec/0x224 [ 56.206353][ T3110] lr : read_block_bitmap+0xe8/0x224 [ 56.207274][ T3110] sp : ffff800012893a50 [ 56.208010][ T3110] x29: ffff800012893a50 x28: ffff0000c4151000 x27: 0000000000000000 [ 56.209390][ T3110] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 56.210775][ T3110] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 56.212161][ T3110] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 56.213566][ T3110] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.214936][ T3110] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.216283][ T3110] x11: 00000001000002c7 x10: ffff80000a901be4 x9 : 6053a75b74cee300 [ 56.217670][ T3110] x8 : 6053a75b74cee300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.219062][ T3110] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.220433][ T3110] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.221808][ T3110] Call trace: [ 56.222367][ T3110] read_block_bitmap+0xec/0x224 [ 56.223200][ T3110] ext2_free_blocks+0x104/0x368 [ 56.224035][ T3110] __ext2_truncate_blocks+0xb8/0x550 [ 56.224957][ T3110] ext2_write_failed+0xa4/0xc0 [ 56.225796][ T3110] ext2_write_begin+0x54/0x6c [ 56.226617][ T3110] generic_perform_write+0x80/0x1e4 [ 56.227529][ T3110] __generic_file_write_iter+0x7c/0xc0 [ 56.228446][ T3110] generic_file_write_iter+0x50/0xd4 [ 56.229339][ T3110] ext2_file_write_iter+0x10/0x1c [ 56.230188][ T3110] vfs_write+0x1ac/0x2c4 [ 56.230904][ T3110] __arm64_sys_pwrite64+0x84/0xc8 [ 56.231747][ T3110] invoke_syscall+0x40/0xdc [ 56.232495][ T3110] el0_svc_common+0xb0/0xe8 [ 56.233271][ T3110] do_el0_svc+0x24/0x80 [ 56.233971][ T3110] el0_svc+0x34/0xd4 [ 56.234624][ T3110] el0t_64_sync_handler+0x84/0xf0 [ 56.235482][ T3110] el0t_64_sync+0x18c/0x190 [ 56.236240][ T3110] ---[ end trace 0000000000000000 ]--- [ 56.237206][ T3110] ------------[ cut here ]------------ [ 56.238014][ T3110] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.238027][ T3110] WARNING: CPU: 1 PID: 3110 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.240516][ T3110] Modules linked in: [ 56.241097][ T3110] CPU: 1 PID: 3110 Comm: syz.2.70 Tainted: G W syzkaller #0 [ 56.242397][ T3110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.243938][ T3110] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.245188][ T3110] pc : read_block_bitmap+0xec/0x224 [ 56.246038][ T3110] lr : read_block_bitmap+0xe8/0x224 [ 56.246943][ T3110] sp : ffff800012893a50 [ 56.247663][ T3110] x29: ffff800012893a50 x28: ffff0000c4151000 x27: 0000000000000000 [ 56.249080][ T3110] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 56.250507][ T3110] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 56.251881][ T3110] x20: 0000000000000000 x19: ffff0000c5ec6000 x18: ffff80000a3f7ee1 [ 56.253303][ T3110] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.254730][ T3110] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.256138][ T3110] x11: 00000001000002ee x10: ffff80000a901be4 x9 : 6053a75b74cee300 [ 56.257568][ T3110] x8 : 6053a75b74cee300 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.259063][ T3110] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.260509][ T3110] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.261896][ T3110] Call trace: [ 56.262479][ T3110] read_block_bitmap+0xec/0x224 [ 56.263334][ T3110] ext2_free_blocks+0x104/0x368 [ 56.264225][ T3110] __ext2_truncate_blocks+0x154/0x550 [ 56.265170][ T3110] ext2_write_failed+0xa4/0xc0 [ 56.266041][ T3110] ext2_write_begin+0x54/0x6c [ 56.266862][ T3110] generic_perform_write+0x80/0x1e4 [ 56.267802][ T3110] __generic_file_write_iter+0x7c/0xc0 [ 56.268791][ T3110] generic_file_write_iter+0x50/0xd4 [ 56.269731][ T3110] ext2_file_write_iter+0x10/0x1c [ 56.270601][ T3110] vfs_write+0x1ac/0x2c4 [ 56.271305][ T3110] __arm64_sys_pwrite64+0x84/0xc8 [ 56.272213][ T3110] invoke_syscall+0x40/0xdc [ 56.273024][ T3110] el0_svc_common+0xb0/0xe8 [ 56.273837][ T3110] do_el0_svc+0x24/0x80 [ 56.274595][ T3110] el0_svc+0x34/0xd4 [ 56.275286][ T3110] el0t_64_sync_handler+0x84/0xf0 [ 56.276143][ T3110] el0t_64_sync+0x18c/0x190 [ 56.276929][ T3110] ---[ end trace 0000000000000000 ]--- [ 56.285876][ T3112] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 56.287243][ T3112] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 56.288503][ T3112] ext2 filesystem being mounted at /54/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.292403][ T3112] ------------[ cut here ]------------ [ 56.293390][ T3112] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.293403][ T3112] WARNING: CPU: 0 PID: 3112 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 56.296311][ T3112] Modules linked in: [ 56.297070][ T3112] CPU: 0 PID: 3112 Comm: syz.2.71 Tainted: G W syzkaller #0 [ 56.298720][ T3112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.300528][ T3112] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.301882][ T3112] pc : ext2_new_blocks+0x418/0x564 [ 56.302758][ T3112] lr : ext2_new_blocks+0x418/0x564 [ 56.303642][ T3112] sp : ffff80001286b8f0 [ 56.304386][ T3112] x29: ffff80001286b940 x28: 0000000000010000 x27: 0000000000000008 [ 56.305792][ T3112] x26: ffff0000ce82e400 x25: 0000000000010000 x24: ffff80001286b9f4 [ 56.307212][ T3112] x23: ffff0000c5ec2000 x22: 0000000000000000 x21: ffff80001286b9f8 [ 56.308647][ T3112] x20: ffff0000c530c280 x19: ffff0000c8e79e98 x18: ffff80000a3f7ee1 [ 56.310054][ T3112] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.311485][ T3112] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.312899][ T3112] x11: 0000000100000318 x10: ffff80000a901be4 x9 : b3002621a34c5700 [ 56.314291][ T3112] x8 : b3002621a34c5700 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.315683][ T3112] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.317104][ T3112] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 56.318551][ T3112] Call trace: [ 56.319123][ T3112] ext2_new_blocks+0x418/0x564 [ 56.319982][ T3112] ext2_get_blocks+0x4b4/0x9b0 [ 56.320862][ T3112] ext2_get_block+0x58/0x158 [ 56.321705][ T3112] __block_write_begin_int+0x10c/0x6f0 [ 56.322693][ T3112] block_write_begin+0x5c/0xa4 [ 56.323574][ T3112] ext2_write_begin+0x40/0x6c [ 56.324441][ T3112] generic_perform_write+0x80/0x1e4 [ 56.325390][ T3112] __generic_file_write_iter+0x7c/0xc0 [ 56.326392][ T3112] generic_file_write_iter+0x50/0xd4 [ 56.327324][ T3112] ext2_file_write_iter+0x10/0x1c [ 56.328177][ T3112] vfs_write+0x1ac/0x2c4 [ 56.328924][ T3112] __arm64_sys_pwrite64+0x84/0xc8 [ 56.329822][ T3112] invoke_syscall+0x40/0xdc [ 56.330621][ T3112] el0_svc_common+0xb0/0xe8 [ 56.331416][ T3112] do_el0_svc+0x24/0x80 [ 56.332129][ T3112] el0_svc+0x34/0xd4 [ 56.332783][ T3112] el0t_64_sync_handler+0x84/0xf0 [ 56.333651][ T3112] el0t_64_sync+0x18c/0x190 [ 56.334430][ T3112] ---[ end trace 0000000000000000 ]--- [ 56.335669][ T3112] ------------[ cut here ]------------ [ 56.336666][ T3112] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 56.336692][ T3112] WARNING: CPU: 0 PID: 3112 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.339393][ T3112] Modules linked in: [ 56.339961][ T3112] CPU: 0 PID: 3112 Comm: syz.2.71 Tainted: G W syzkaller #0 [ 56.341256][ T3112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.342827][ T3112] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.344208][ T3112] pc : read_block_bitmap+0xec/0x224 [ 56.345126][ T3112] lr : read_block_bitmap+0xe8/0x224 [ 56.346059][ T3112] sp : ffff80001286ba50 [ 56.346787][ T3112] x29: ffff80001286ba50 x28: ffff0000c4150400 x27: 0000000000000000 [ 56.348217][ T3112] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 56.349592][ T3112] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 56.351005][ T3112] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: 00000000000d3800 [ 56.352423][ T3112] x17: 0000000000000001 x16: 0000000000000000 x15: 0000000000000062 [ 56.353814][ T3112] x14: 0000000000100000 x13: 0000000002c84eab x12: ffff80000e90c000 [ 56.355201][ T3112] x11: 0000000000000004 x10: 00000000ffffffff x9 : b3002621a34c5700 [ 56.356572][ T3112] x8 : b3002621a34c5700 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 56.357973][ T3112] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.359393][ T3112] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 56.360785][ T3112] Call trace: [ 56.361372][ T3112] read_block_bitmap+0xec/0x224 [ 56.362227][ T3112] ext2_free_blocks+0x104/0x368 [ 56.363106][ T3112] __ext2_truncate_blocks+0xb8/0x550 [ 56.364038][ T3112] ext2_write_failed+0xa4/0xc0 [ 56.364919][ T3112] ext2_write_begin+0x54/0x6c [ 56.365768][ T3112] generic_perform_write+0x80/0x1e4 [ 56.366699][ T3112] __generic_file_write_iter+0x7c/0xc0 [ 56.367705][ T3112] generic_file_write_iter+0x50/0xd4 [ 56.368676][ T3112] ext2_file_write_iter+0x10/0x1c [ 56.369573][ T3112] vfs_write+0x1ac/0x2c4 [ 56.370354][ T3112] __arm64_sys_pwrite64+0x84/0xc8 [ 56.371252][ T3112] invoke_syscall+0x40/0xdc [ 56.372051][ T3112] el0_svc_common+0xb0/0xe8 [ 56.372845][ T3112] do_el0_svc+0x24/0x80 [ 56.373568][ T3112] el0_svc+0x34/0xd4 [ 56.374241][ T3112] el0t_64_sync_handler+0x84/0xf0 [ 56.375139][ T3112] el0t_64_sync+0x18c/0x190 [ 56.375934][ T3112] ---[ end trace 0000000000000000 ]--- [ 56.377267][ T3112] ------------[ cut here ]------------ [ 56.378106][ T3112] block_group >= groups_count - block_group = 3, groups_count = 1 [ 56.378120][ T3112] WARNING: CPU: 0 PID: 3112 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.380666][ T3112] Modules linked in: [ 56.381244][ T3112] CPU: 0 PID: 3112 Comm: syz.2.71 Tainted: G W syzkaller #0 [ 56.382580][ T3112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.384134][ T3112] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.385279][ T3112] pc : read_block_bitmap+0xec/0x224 [ 56.386161][ T3112] lr : read_block_bitmap+0xe8/0x224 [ 56.387083][ T3112] sp : ffff80001286ba50 [ 56.387794][ T3112] x29: ffff80001286ba50 x28: ffff0000c4150400 x27: 0000000000000000 [ 56.389193][ T3112] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 56.390613][ T3112] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 56.392017][ T3112] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: ffff80000a3f7ee1 [ 56.393471][ T3112] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.394860][ T3112] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.396319][ T3112] x11: 0000000100000367 x10: ffff80000a901be4 x9 : b3002621a34c5700 [ 56.397741][ T3112] x8 : b3002621a34c5700 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.399172][ T3112] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.400635][ T3112] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.402053][ T3112] Call trace: [ 56.402637][ T3112] read_block_bitmap+0xec/0x224 [ 56.403499][ T3112] ext2_free_blocks+0x104/0x368 [ 56.404372][ T3112] __ext2_truncate_blocks+0xb8/0x550 [ 56.405288][ T3112] ext2_write_failed+0xa4/0xc0 [ 56.406147][ T3112] ext2_write_begin+0x54/0x6c [ 56.406984][ T3112] generic_perform_write+0x80/0x1e4 [ 56.407919][ T3112] __generic_file_write_iter+0x7c/0xc0 [ 56.408930][ T3112] generic_file_write_iter+0x50/0xd4 [ 56.409870][ T3112] ext2_file_write_iter+0x10/0x1c [ 56.410765][ T3112] vfs_write+0x1ac/0x2c4 [ 56.411533][ T3112] __arm64_sys_pwrite64+0x84/0xc8 [ 56.412454][ T3112] invoke_syscall+0x40/0xdc [ 56.413287][ T3112] el0_svc_common+0xb0/0xe8 [ 56.414119][ T3112] do_el0_svc+0x24/0x80 [ 56.414884][ T3112] el0_svc+0x34/0xd4 [ 56.415598][ T3112] el0t_64_sync_handler+0x84/0xf0 [ 56.416482][ T3112] el0t_64_sync+0x18c/0x190 [ 56.417285][ T3112] ---[ end trace 0000000000000000 ]--- [ 56.418292][ T3112] ------------[ cut here ]------------ [ 56.419186][ T3112] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.419197][ T3112] WARNING: CPU: 0 PID: 3112 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.421830][ T3112] Modules linked in: [ 56.422435][ T3112] CPU: 0 PID: 3112 Comm: syz.2.71 Tainted: G W syzkaller #0 [ 56.423805][ T3112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.425331][ T3112] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.426762][ T3112] pc : read_block_bitmap+0xec/0x224 [ 56.427754][ T3112] lr : read_block_bitmap+0xe8/0x224 [ 56.428668][ T3112] sp : ffff80001286ba50 [ 56.429405][ T3112] x29: ffff80001286ba50 x28: ffff0000c4150400 x27: 0000000000000000 [ 56.430966][ T3112] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 56.432340][ T3112] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 56.433749][ T3112] x20: 0000000000000000 x19: ffff0000c5ec2000 x18: ffff80000a3f7ee1 [ 56.435189][ T3112] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.436629][ T3112] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.438096][ T3112] x11: 000000010000038e x10: ffff80000a901be4 x9 : b3002621a34c5700 [ 56.439574][ T3112] x8 : b3002621a34c5700 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.441039][ T3112] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.442534][ T3112] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.443985][ T3112] Call trace: [ 56.444552][ T3112] read_block_bitmap+0xec/0x224 [ 56.445384][ T3112] ext2_free_blocks+0x104/0x368 [ 56.446240][ T3112] __ext2_truncate_blocks+0x154/0x550 [ 56.447185][ T3112] ext2_write_failed+0xa4/0xc0 [ 56.448026][ T3112] ext2_write_begin+0x54/0x6c [ 56.448876][ T3112] generic_perform_write+0x80/0x1e4 [ 56.449833][ T3112] __generic_file_write_iter+0x7c/0xc0 [ 56.450795][ T3112] generic_file_write_iter+0x50/0xd4 [ 56.451758][ T3112] ext2_file_write_iter+0x10/0x1c [ 56.452694][ T3112] vfs_write+0x1ac/0x2c4 [ 56.453437][ T3112] __arm64_sys_pwrite64+0x84/0xc8 [ 56.454352][ T3112] invoke_syscall+0x40/0xdc [ 56.455133][ T3112] el0_svc_common+0xb0/0xe8 [ 56.455929][ T3112] do_el0_svc+0x24/0x80 [ 56.456669][ T3112] el0_svc+0x34/0xd4 [ 56.457388][ T3112] el0t_64_sync_handler+0x84/0xf0 [ 56.458241][ T3112] el0t_64_sync+0x18c/0x190 [ 56.459010][ T3112] ---[ end trace 0000000000000000 ]--- [ 56.468050][ T3114] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 56.469354][ T3114] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 56.470711][ T3114] ext2 filesystem being mounted at /55/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.480659][ T3114] ------------[ cut here ]------------ [ 56.481532][ T3114] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.481545][ T3114] WARNING: CPU: 0 PID: 3114 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 56.484158][ T3114] Modules linked in: [ 56.484753][ T3114] CPU: 0 PID: 3114 Comm: syz.2.72 Tainted: G W syzkaller #0 [ 56.486172][ T3114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.488024][ T3114] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.489450][ T3114] pc : ext2_new_blocks+0x418/0x564 [ 56.490346][ T3114] lr : ext2_new_blocks+0x418/0x564 [ 56.491233][ T3114] sp : ffff80001288b8f0 [ 56.491926][ T3114] x29: ffff80001288b940 x28: 0000000000010000 x27: 0000000000000008 [ 56.493359][ T3114] x26: ffff0000cd54e400 x25: 0000000000010000 x24: ffff80001288b9f4 [ 56.494808][ T3114] x23: ffff0000c9cb6000 x22: 0000000000000000 x21: ffff80001288b9f8 [ 56.496298][ T3114] x20: ffff0000c530c080 x19: ffff0000c8e798b8 x18: ffff80000a3f7ee1 [ 56.497764][ T3114] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.499213][ T3114] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.500681][ T3114] x11: 00000001000003b8 x10: ffff80000a901be4 x9 : d017e6f45827bf00 [ 56.502134][ T3114] x8 : d017e6f45827bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.503602][ T3114] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.505065][ T3114] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 000000000000003f [ 56.506542][ T3114] Call trace: [ 56.507130][ T3114] ext2_new_blocks+0x418/0x564 [ 56.508007][ T3114] ext2_get_blocks+0x4b4/0x9b0 [ 56.508846][ T3114] ext2_get_block+0x58/0x158 [ 56.509714][ T3114] __block_write_begin_int+0x10c/0x6f0 [ 56.510672][ T3114] block_write_begin+0x5c/0xa4 [ 56.511497][ T3114] ext2_write_begin+0x40/0x6c [ 56.512328][ T3114] generic_perform_write+0x80/0x1e4 [ 56.513243][ T3114] __generic_file_write_iter+0x7c/0xc0 [ 56.514168][ T3114] generic_file_write_iter+0x50/0xd4 [ 56.515056][ T3114] ext2_file_write_iter+0x10/0x1c [ 56.515931][ T3114] vfs_write+0x1ac/0x2c4 [ 56.516682][ T3114] __arm64_sys_pwrite64+0x84/0xc8 [ 56.517530][ T3114] invoke_syscall+0x40/0xdc [ 56.518309][ T3114] el0_svc_common+0xb0/0xe8 [ 56.519095][ T3114] do_el0_svc+0x24/0x80 [ 56.519814][ T3114] el0_svc+0x34/0xd4 [ 56.520504][ T3114] el0t_64_sync_handler+0x84/0xf0 [ 56.521401][ T3114] el0t_64_sync+0x18c/0x190 [ 56.522200][ T3114] ---[ end trace 0000000000000000 ]--- [ 56.523213][ T3114] ------------[ cut here ]------------ 2026/10/15 05:01:45 executed programs: 57 [ 56.524078][ T3114] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 56.524092][ T3114] WARNING: CPU: 0 PID: 3114 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.526976][ T3114] Modules linked in: [ 56.527679][ T3114] CPU: 0 PID: 3114 Comm: syz.2.72 Tainted: G W syzkaller #0 [ 56.529238][ T3114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.531043][ T3114] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.532459][ T3114] pc : read_block_bitmap+0xec/0x224 [ 56.533397][ T3114] lr : read_block_bitmap+0xe8/0x224 [ 56.534334][ T3114] sp : ffff80001288ba50 [ 56.535079][ T3114] x29: ffff80001288ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 56.536526][ T3114] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 56.537953][ T3114] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 56.539415][ T3114] x20: 0000000000000000 x19: ffff0000c9cb6000 x18: ffff80000a3f7ee1 [ 56.540839][ T3114] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.542290][ T3114] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.543705][ T3114] x11: 00000001000003e0 x10: ffff80000a901be4 x9 : d017e6f45827bf00 [ 56.545130][ T3114] x8 : d017e6f45827bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.546562][ T3114] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.547981][ T3114] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.549425][ T3114] Call trace: [ 56.550010][ T3114] read_block_bitmap+0xec/0x224 [ 56.550882][ T3114] ext2_free_blocks+0x104/0x368 [ 56.551729][ T3114] __ext2_truncate_blocks+0xb8/0x550 [ 56.552645][ T3114] ext2_write_failed+0xa4/0xc0 [ 56.553547][ T3114] ext2_write_begin+0x54/0x6c [ 56.554389][ T3114] generic_perform_write+0x80/0x1e4 [ 56.555343][ T3114] __generic_file_write_iter+0x7c/0xc0 [ 56.556333][ T3114] generic_file_write_iter+0x50/0xd4 [ 56.557274][ T3114] ext2_file_write_iter+0x10/0x1c [ 56.558153][ T3114] vfs_write+0x1ac/0x2c4 [ 56.558885][ T3114] __arm64_sys_pwrite64+0x84/0xc8 [ 56.559777][ T3114] invoke_syscall+0x40/0xdc [ 56.560579][ T3114] el0_svc_common+0xb0/0xe8 [ 56.561398][ T3114] do_el0_svc+0x24/0x80 [ 56.562181][ T3114] el0_svc+0x34/0xd4 [ 56.562866][ T3114] el0t_64_sync_handler+0x84/0xf0 [ 56.563759][ T3114] el0t_64_sync+0x18c/0x190 [ 56.564624][ T3114] ---[ end trace 0000000000000000 ]--- [ 56.565675][ T3114] ------------[ cut here ]------------ [ 56.566506][ T3114] block_group >= groups_count - block_group = 3, groups_count = 1 [ 56.566518][ T3114] WARNING: CPU: 0 PID: 3114 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.569153][ T3114] Modules linked in: [ 56.569742][ T3114] CPU: 0 PID: 3114 Comm: syz.2.72 Tainted: G W syzkaller #0 [ 56.571076][ T3114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.572616][ T3114] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.573829][ T3114] pc : read_block_bitmap+0xec/0x224 [ 56.574646][ T3114] lr : read_block_bitmap+0xe8/0x224 [ 56.575451][ T3114] sp : ffff80001288ba50 [ 56.576200][ T3114] x29: ffff80001288ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 56.577635][ T3114] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 56.579081][ T3114] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 56.580544][ T3114] x20: 0000000000000000 x19: ffff0000c9cb6000 x18: ffff80000a3f7ee1 [ 56.581989][ T3114] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.583425][ T3114] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.584840][ T3114] x11: 0000000100000407 x10: ffff80000a901be4 x9 : d017e6f45827bf00 [ 56.586262][ T3114] x8 : d017e6f45827bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.587730][ T3114] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.589165][ T3114] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.590600][ T3114] Call trace: [ 56.591193][ T3114] read_block_bitmap+0xec/0x224 [ 56.592055][ T3114] ext2_free_blocks+0x104/0x368 [ 56.592894][ T3114] __ext2_truncate_blocks+0xb8/0x550 [ 56.593821][ T3114] ext2_write_failed+0xa4/0xc0 [ 56.594642][ T3114] ext2_write_begin+0x54/0x6c [ 56.595448][ T3114] generic_perform_write+0x80/0x1e4 [ 56.596341][ T3114] __generic_file_write_iter+0x7c/0xc0 [ 56.597290][ T3114] generic_file_write_iter+0x50/0xd4 [ 56.598232][ T3114] ext2_file_write_iter+0x10/0x1c [ 56.599128][ T3114] vfs_write+0x1ac/0x2c4 [ 56.599908][ T3114] __arm64_sys_pwrite64+0x84/0xc8 [ 56.600827][ T3114] invoke_syscall+0x40/0xdc [ 56.601646][ T3114] el0_svc_common+0xb0/0xe8 [ 56.602468][ T3114] do_el0_svc+0x24/0x80 [ 56.603250][ T3114] el0_svc+0x34/0xd4 [ 56.603947][ T3114] el0t_64_sync_handler+0x84/0xf0 [ 56.604865][ T3114] el0t_64_sync+0x18c/0x190 [ 56.605687][ T3114] ---[ end trace 0000000000000000 ]--- [ 56.606771][ T3114] ------------[ cut here ]------------ [ 56.607653][ T3114] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.607667][ T3114] WARNING: CPU: 0 PID: 3114 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.610299][ T3114] Modules linked in: [ 56.610912][ T3114] CPU: 0 PID: 3114 Comm: syz.2.72 Tainted: G W syzkaller #0 [ 56.612258][ T3114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.613787][ T3114] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.614979][ T3114] pc : read_block_bitmap+0xec/0x224 [ 56.615837][ T3114] lr : read_block_bitmap+0xe8/0x224 [ 56.616741][ T3114] sp : ffff80001288ba50 [ 56.617450][ T3114] x29: ffff80001288ba50 x28: ffff0000c5ee9000 x27: 0000000000000000 [ 56.618837][ T3114] x26: 0000000000000007 x25: 0000000000000001 x24: 0000000000002000 [ 56.620232][ T3114] x23: 0000000000000007 x22: 0000000000001fff x21: 0000000000010000 [ 56.621636][ T3114] x20: 0000000000000000 x19: ffff0000c9cb6000 x18: ffff80000a3f7ee1 [ 56.623063][ T3114] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.624488][ T3114] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.625907][ T3114] x11: 000000010000042e x10: ffff80000a901be4 x9 : d017e6f45827bf00 [ 56.627332][ T3114] x8 : d017e6f45827bf00 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.628762][ T3114] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.630176][ T3114] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.631548][ T3114] Call trace: [ 56.632100][ T3114] read_block_bitmap+0xec/0x224 [ 56.632968][ T3114] ext2_free_blocks+0x104/0x368 [ 56.633813][ T3114] __ext2_truncate_blocks+0x154/0x550 [ 56.634767][ T3114] ext2_write_failed+0xa4/0xc0 [ 56.635623][ T3114] ext2_write_begin+0x54/0x6c [ 56.636463][ T3114] generic_perform_write+0x80/0x1e4 [ 56.637396][ T3114] __generic_file_write_iter+0x7c/0xc0 [ 56.638362][ T3114] generic_file_write_iter+0x50/0xd4 [ 56.639316][ T3114] ext2_file_write_iter+0x10/0x1c [ 56.640196][ T3114] vfs_write+0x1ac/0x2c4 [ 56.640943][ T3114] __arm64_sys_pwrite64+0x84/0xc8 [ 56.641830][ T3114] invoke_syscall+0x40/0xdc [ 56.642627][ T3114] el0_svc_common+0xb0/0xe8 [ 56.643468][ T3114] do_el0_svc+0x24/0x80 [ 56.644227][ T3114] el0_svc+0x34/0xd4 [ 56.644920][ T3114] el0t_64_sync_handler+0x84/0xf0 [ 56.645798][ T3114] el0t_64_sync+0x18c/0x190 [ 56.646561][ T3114] ---[ end trace 0000000000000000 ]--- [ 56.657940][ T3118] EXT2-fs (loop2): (no)user_xattr optionsnot supported [ 56.659158][ T3118] EXT2-fs (loop2): warning: mounting ext3 filesystem as ext2 [ 56.660378][ T3118] ext2 filesystem being mounted at /57/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.665063][ T3118] ------------[ cut here ]------------ [ 56.666175][ T3118] block_group >= groups_count - block_group = 7, groups_count = 1 [ 56.666194][ T3118] WARNING: CPU: 0 PID: 3118 at fs/ext2/balloc.c:51 ext2_new_blocks+0x418/0x564 [ 56.669350][ T3118] Modules linked in: [ 56.670043][ T3118] CPU: 0 PID: 3118 Comm: syz.2.74 Tainted: G W syzkaller #0 [ 56.671617][ T3118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.673392][ T3118] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.674809][ T3118] pc : ext2_new_blocks+0x418/0x564 [ 56.675702][ T3118] lr : ext2_new_blocks+0x418/0x564 [ 56.676603][ T3118] sp : ffff8000128838f0 [ 56.677321][ T3118] x29: ffff800012883940 x28: 0000000000010000 x27: 0000000000000008 [ 56.678722][ T3118] x26: ffff0000d41a9400 x25: 0000000000010000 x24: ffff8000128839f4 [ 56.680160][ T3118] x23: ffff0000c9cb0000 x22: 0000000000000000 x21: ffff8000128839f8 [ 56.681558][ T3118] x20: ffff0000c45cf380 x19: ffff0000c8e78718 x18: ffff80000a3f7ee1 [ 56.682940][ T3118] x17: 0000000000000001 x16: 000000000000015b x15: 000000000000000f [ 56.684358][ T3118] x14: 000000000008a255 x13: 0000000000000001 x12: ffff80000e90c000 [ 56.685742][ T3118] x11: 0000000000000003 x10: 00000000ffffffff x9 : cd7b996d018d9600 [ 56.687125][ T3118] x8 : cd7b996d018d9600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 56.688529][ T3118] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.689965][ T3118] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000001 [ 56.691361][ T3118] Call trace: [ 56.691919][ T3118] ext2_new_blocks+0x418/0x564 [ 56.692755][ T3118] ext2_get_blocks+0x4b4/0x9b0 [ 56.693610][ T3118] ext2_get_block+0x58/0x158 [ 56.694410][ T3118] __block_write_begin_int+0x10c/0x6f0 [ 56.695387][ T3118] block_write_begin+0x5c/0xa4 [ 56.696224][ T3118] ext2_write_begin+0x40/0x6c [ 56.697043][ T3118] generic_perform_write+0x80/0x1e4 [ 56.697940][ T3118] __generic_file_write_iter+0x7c/0xc0 [ 56.698893][ T3118] generic_file_write_iter+0x50/0xd4 [ 56.699842][ T3118] ext2_file_write_iter+0x10/0x1c [ 56.700725][ T3118] vfs_write+0x1ac/0x2c4 [ 56.701451][ T3118] __arm64_sys_pwrite64+0x84/0xc8 [ 56.702326][ T3118] invoke_syscall+0x40/0xdc [ 56.703116][ T3118] el0_svc_common+0xb0/0xe8 [ 56.703876][ T3118] do_el0_svc+0x24/0x80 [ 56.704582][ T3118] el0_svc+0x34/0xd4 [ 56.705240][ T3118] el0t_64_sync_handler+0x84/0xf0 [ 56.706101][ T3118] el0t_64_sync+0x18c/0x190 [ 56.706873][ T3118] ---[ end trace 0000000000000000 ]--- [ 56.707896][ T3118] ------------[ cut here ]------------ [ 56.708768][ T3118] block_group >= groups_count - block_group = 207715, groups_count = 1 [ 56.708827][ T3118] WARNING: CPU: 0 PID: 3118 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.711725][ T3118] Modules linked in: [ 56.712331][ T3118] CPU: 0 PID: 3118 Comm: syz.2.74 Tainted: G W syzkaller #0 [ 56.713706][ T3118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.715305][ T3118] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.716769][ T3118] pc : read_block_bitmap+0xec/0x224 [ 56.717710][ T3118] lr : read_block_bitmap+0xe8/0x224 [ 56.718634][ T3118] sp : ffff800012883a50 [ 56.719389][ T3118] x29: ffff800012883a50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 56.720785][ T3118] x26: 0000000000032b63 x25: 0000000000000001 x24: 0000000000002000 [ 56.722210][ T3118] x23: 0000000000032b63 x22: 0000000000000c60 x21: 00000000656c6c61 [ 56.723652][ T3118] x20: 0000000000000000 x19: ffff0000c9cb0000 x18: 0000000000000000 [ 56.725090][ T3118] x17: ffff8000099bd734 x16: 0000000000000001 x15: 000000000000ba7e [ 56.726482][ T3118] x14: 00000000000b7514 x13: 00000000024ada36 x12: ffff80000e90c000 [ 56.727903][ T3118] x11: 0000000000000004 x10: 00000000ffffffff x9 : cd7b996d018d9600 [ 56.729351][ T3118] x8 : cd7b996d018d9600 x7 : 0000000000000000 x6 : ffff8000080d5cfc [ 56.730763][ T3118] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.732205][ T3118] x2 : 0000000000000000 x1 : ffff80000a5f9172 x0 : 0000000000000000 [ 56.733634][ T3118] Call trace: [ 56.734202][ T3118] read_block_bitmap+0xec/0x224 [ 56.735056][ T3118] ext2_free_blocks+0x104/0x368 [ 56.735928][ T3118] __ext2_truncate_blocks+0xb8/0x550 [ 56.736866][ T3118] ext2_write_failed+0xa4/0xc0 [ 56.737705][ T3118] ext2_write_begin+0x54/0x6c [ 56.738535][ T3118] generic_perform_write+0x80/0x1e4 [ 56.739481][ T3118] __generic_file_write_iter+0x7c/0xc0 [ 56.740462][ T3118] generic_file_write_iter+0x50/0xd4 [ 56.741392][ T3118] ext2_file_write_iter+0x10/0x1c [ 56.742272][ T3118] vfs_write+0x1ac/0x2c4 [ 56.743065][ T3118] __arm64_sys_pwrite64+0x84/0xc8 [ 56.743970][ T3118] invoke_syscall+0x40/0xdc [ 56.744769][ T3118] el0_svc_common+0xb0/0xe8 [ 56.745566][ T3118] do_el0_svc+0x24/0x80 [ 56.746303][ T3118] el0_svc+0x34/0xd4 [ 56.746984][ T3118] el0t_64_sync_handler+0x84/0xf0 [ 56.747855][ T3118] el0t_64_sync+0x18c/0x190 [ 56.748624][ T3118] ---[ end trace 0000000000000000 ]--- [ 56.750010][ T3118] ------------[ cut here ]------------ [ 56.750829][ T3118] block_group >= groups_count - block_group = 3, groups_count = 1 [ 56.750843][ T3118] WARNING: CPU: 0 PID: 3118 at fs/ext2/balloc.c:51 read_block_bitmap+0xec/0x224 [ 56.753447][ T3118] Modules linked in: [ 56.754040][ T3118] CPU: 0 PID: 3118 Comm: syz.2.74 Tainted: G W syzkaller #0 [ 56.755425][ T3118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 56.757174][ T3118] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.758561][ T3118] pc : read_block_bitmap+0xec/0x224 [ 56.759464][ T3118] lr : read_block_bitmap+0xe8/0x224 [ 56.760365][ T3118] sp : ffff800012883a50 [ 56.761076][ T3118] x29: ffff800012883a50 x28: ffff0000c5eea000 x27: 0000000000000000 [ 56.762471][ T3118] x26: 0000000000000003 x25: 0000000000000001 x24: 0000000000002000 [ 56.763895][ T3118] x23: 0000000000000003 x22: 0000000000001371 x21: 0000000000007372 [ 56.765329][ T3118] x20: 0000000000000000 x19: ffff0000c9cb0000 x18: ffff80000a3f7ee1 [ 56.766787][ T3118] x17: 0000000000000001 x16: ffffffffffffffff x15: 0000000000000003 [ 56.768245][ T3118] x14: ffff80000a96b270 x13: 0000000000000003 x12: 0000000000000003 [ 56.769694][ T3118] x11: 00000001000004a7 x10: ffff80000a901be4 x9 : cd7b996d018d9600 [ 56.771144][ T3118] x8 : cd7b996d018d9600 x7 : 0000000000000000 x6 : ffff80000997ce44 [ 56.772591][ T3118] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 56.774042][ T3118] x2 : 0000000000000000 x1 : ffff80000a3f7ee1 x0 : 0000000000000000 [ 56.775487][ T3118] Call trace: [ 56.776053][ T3118] read_block_bitmap+0xec/0x224 [ 56.776907][ T3118] ext2_free_blocks+0x104/0x368 [ 56.777842][ T3118] __ext2_truncate_blocks+0xb8/0x550 [ 56.778817][ T3118] ext2_write_failed+0xa4/0xc0 [ 56.779722][ T3118] ext2_write_begin+0x54/0x6c [ 56.780564][ T3118] generic_perform_write+0x80/0x1e4 [ 56.781516][ T3118] __generic_file_write_iter+0x7c/0xc0 [ 56.782471][ T3118] generic_file_write_iter+0x50/0xd4 [ 56.783419][ T3118] ext2_file_write_iter+0x10/0x1c [ 56.784325][ T3118] vfs_write+0x1ac/0x2c4 [ 56.785092][ T3118] __arm64_sys_pwrite64+0x84/0xc8 [ 56.785990][ T3118] invoke_syscall+0x40/0xdc [ 56.786794][ T3118] el0_svc_common+0xb0/0xe8 [ 56.787630][ T3118] do_el0_svc+0x24/0x80 [ 56.788377][ T3118] el0_svc+0x34/0xd4 [ 56.789102][ T3118] el0t_64_sync_handler+0x84/0xf0 [ 56.789994][ T3118] el0t_64_sync+0x18c/0x190 [ 56.790781][ T3118] ---[ end trace 0000000000000000 ]---