Warning: Permanently added '10.128.1.78' (ED25519) to the list of known hosts. executing program [ 43.072828][ T4023] loop0: detected capacity change from 0 to 32768 [ 43.146181][ T4023] ======================================================= [ 43.146181][ T4023] WARNING: The mand mount option has been deprecated and [ 43.146181][ T4023] and is ignored by this kernel. Remove the mand [ 43.146181][ T4023] option from the mount to silence this warning. [ 43.146181][ T4023] ======================================================= [ 43.185872][ T4023] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 43.196303][ T4023] ================================================================== [ 43.198539][ T4023] BUG: KASAN: use-after-free in __ocfs2_flush_truncate_log+0x64c/0xf30 [ 43.200671][ T4023] Read of size 4 at addr ffff0000e2af7ab8 by task syz-executor132/4023 [ 43.202744][ T4023] [ 43.203344][ T4023] CPU: 1 PID: 4023 Comm: syz-executor132 Not tainted 5.15.184-syzkaller #0 [ 43.205540][ T4023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 43.208129][ T4023] Call trace: [ 43.208990][ T4023] dump_backtrace+0x0/0x43c [ 43.210146][ T4023] show_stack+0x2c/0x3c [ 43.211322][ T4023] __dump_stack+0x30/0x40 [ 43.212512][ T4023] dump_stack_lvl+0xf8/0x160 [ 43.213743][ T4023] print_address_description+0x78/0x30c [ 43.215207][ T4023] kasan_report+0xec/0x15c [ 43.216358][ T4023] __asan_report_load4_noabort+0x44/0x50 [ 43.217868][ T4023] __ocfs2_flush_truncate_log+0x64c/0xf30 [ 43.219293][ T4023] ocfs2_flush_truncate_log+0x48/0x68 [ 43.220681][ T4023] ocfs2_sync_fs+0xf8/0x2a4 [ 43.221861][ T4023] sync_filesystem+0x1a0/0x218 [ 43.223074][ T4023] generic_shutdown_super+0x70/0x2f0 [ 43.224497][ T4023] kill_block_super+0x70/0xdc [ 43.225676][ T4023] deactivate_locked_super+0xb8/0x13c [ 43.227076][ T4023] deactivate_super+0xf8/0x118 [ 43.228343][ T4023] cleanup_mnt+0x3a4/0x458 [ 43.229454][ T4023] __cleanup_mnt+0x20/0x30 [ 43.230636][ T4023] task_work_run+0x12c/0x1e0 [ 43.231797][ T4023] do_exit+0x67c/0x1f58 [ 43.232855][ T4023] do_group_exit+0x100/0x268 [ 43.234039][ T4023] __wake_up_parent+0x0/0x60 [ 43.235187][ T4023] invoke_syscall+0x98/0x2b8 [ 43.236336][ T4023] el0_svc_common+0x138/0x258 [ 43.237518][ T4023] do_el0_svc+0x58/0x14c [ 43.238614][ T4023] el0_svc+0x78/0x1e0 [ 43.239653][ T4023] el0t_64_sync_handler+0xcc/0xe4 [ 43.240945][ T4023] el0t_64_sync+0x1a0/0x1a4 [ 43.242124][ T4023] [ 43.242733][ T4023] The buggy address belongs to the page: [ 43.244177][ T4023] page:00000000c0228cea refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122af7 [ 43.246818][ T4023] flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) [ 43.248632][ T4023] raw: 05ffc00000000000 fffffc00038abdc8 fffffc00038abdc8 0000000000000000 [ 43.250862][ T4023] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 43.253112][ T4023] page dumped because: kasan: bad access detected [ 43.254756][ T4023] [ 43.255364][ T4023] Memory state around the buggy address: [ 43.256899][ T4023] ffff0000e2af7980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.259041][ T4023] ffff0000e2af7a00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.261138][ T4023] >ffff0000e2af7a80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.263265][ T4023] ^ [ 43.264841][ T4023] ffff0000e2af7b00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.266953][ T4023] ffff0000e2af7b80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.269038][ T4023] ================================================================== [ 43.271226][ T4023] Disabling lock debugging due to kernel taint [ 44.148187][ T4023] ------------[ cut here ]------------ [ 44.149623][ T4023] kernel BUG at fs/ocfs2/suballoc.c:2469! [ 44.151091][ T4023] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 44.153038][ T4023] Modules linked in: [ 44.154100][ T4023] CPU: 0 PID: 4023 Comm: syz-executor132 Tainted: G B 5.15.184-syzkaller #0 [ 44.156802][ T4023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 44.159470][ T4023] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 44.161498][ T4023] pc : _ocfs2_free_suballoc_bits+0xc50/0xf70 [ 44.163076][ T4023] lr : _ocfs2_free_suballoc_bits+0xc50/0xf70 [ 44.164719][ T4023] sp : ffff80001cfb73c0 [ 44.165787][ T4023] x29: ffff80001cfb7520 x28: 00000000fb11ff4a x27: dfff800000000000 [ 44.167923][ T4023] x26: ffff0000e3153478 x25: ffff800009cdfafc x24: ffff0000e2a74e00 [ 44.170072][ T4023] x23: ffff7000039f6e88 x22: 0000000000000e00 x21: 0000000000000e00 [ 44.172233][ T4023] x20: 000000000f90c000 x19: 00000000fb1203e1 x18: 0000000000000000 [ 44.174360][ T4023] x17: 0000000000000000 x16: ffff8000111a5644 x15: 00000000fffffffc [ 44.176492][ T4023] x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100 [ 44.178624][ T4023] x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800009ce5208 [ 44.180709][ T4023] x8 : ffff0000d79cb680 x7 : 0000000000000000 x6 : ffff800009cdfafc [ 44.182859][ T4023] x5 : 00000000fb11ff4a x4 : 000000000f90c000 x3 : 0000000000000497 [ 44.184997][ T4023] x2 : ffff0000dd3cb0e8 x1 : 0000000000000e00 x0 : 00000000fb1203e1 [ 44.187105][ T4023] Call trace: [ 44.187926][ T4023] _ocfs2_free_suballoc_bits+0xc50/0xf70 [ 44.189412][ T4023] _ocfs2_free_clusters+0x510/0x9b0 [ 44.190767][ T4023] ocfs2_free_clusters+0x50/0x68 [ 44.192002][ T4023] __ocfs2_flush_truncate_log+0x5b0/0xf30 [ 44.193490][ T4023] ocfs2_flush_truncate_log+0x48/0x68 [ 44.194902][ T4023] ocfs2_sync_fs+0xf8/0x2a4 [ 44.196088][ T4023] sync_filesystem+0x1a0/0x218 [ 44.197388][ T4023] generic_shutdown_super+0x70/0x2f0 [ 44.198754][ T4023] kill_block_super+0x70/0xdc [ 44.199948][ T4023] deactivate_locked_super+0xb8/0x13c [ 44.201415][ T4023] deactivate_super+0xf8/0x118 [ 44.202706][ T4023] cleanup_mnt+0x3a4/0x458 [ 44.203881][ T4023] __cleanup_mnt+0x20/0x30 [ 44.205098][ T4023] task_work_run+0x12c/0x1e0 [ 44.206250][ T4023] do_exit+0x67c/0x1f58 [ 44.207326][ T4023] do_group_exit+0x100/0x268 [ 44.208513][ T4023] __wake_up_parent+0x0/0x60 [ 44.209673][ T4023] invoke_syscall+0x98/0x2b8 [ 44.210906][ T4023] el0_svc_common+0x138/0x258 [ 44.212197][ T4023] do_el0_svc+0x58/0x14c [ 44.213334][ T4023] el0_svc+0x78/0x1e0 [ 44.214358][ T4023] el0t_64_sync_handler+0xcc/0xe4 [ 44.215652][ T4023] el0t_64_sync+0x1a0/0x1a4 [ 44.216847][ T4023] Code: 17fffec8 979e4dc1 d4210000 979e4dbf (d4210000) [ 44.218680][ T4023] ---[ end trace 4327436f4ad1c157 ]--- [ 44.493957][ T4023] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 44.495851][ T4023] SMP: stopping secondary CPUs [ 44.497163][ T4023] Kernel Offset: disabled [ 44.498257][ T4023] CPU features: 0x8,000081c1,21302e40 [ 44.499673][ T4023] Memory Limit: none [ 44.771364][ T4023] Rebooting in 86400 seconds..