Warning: Permanently added '10.128.1.229' (ED25519) to the list of known hosts. executing program [ 33.529963][ T6415] loop0: detected capacity change from 0 to 1024 [ 33.545173][ T6415] [ 33.545720][ T6415] ============================================ [ 33.546937][ T6415] WARNING: possible recursive locking detected [ 33.548247][ T6415] 6.12.0-rc3-syzkaller-g86cada34bc3a #0 Not tainted [ 33.549634][ T6415] -------------------------------------------- [ 33.550917][ T6415] syz-executor344/6415 is trying to acquire lock: [ 33.552382][ T6415] ffff0000c5931548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_get_block+0x2c4/0x1168 [ 33.554665][ T6415] [ 33.554665][ T6415] but task is already holding lock: [ 33.556171][ T6415] ffff0000c5932988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x24c/0xa18 [ 33.558595][ T6415] [ 33.558595][ T6415] other info that might help us debug this: [ 33.560456][ T6415] Possible unsafe locking scenario: [ 33.560456][ T6415] [ 33.562136][ T6415] CPU0 [ 33.562849][ T6415] ---- [ 33.563552][ T6415] lock(&HFSPLUS_I(inode)->extents_lock); [ 33.564787][ T6415] lock(&HFSPLUS_I(inode)->extents_lock); [ 33.566128][ T6415] [ 33.566128][ T6415] *** DEADLOCK *** [ 33.566128][ T6415] [ 33.567905][ T6415] May be due to missing lock nesting notation [ 33.567905][ T6415] [ 33.569641][ T6415] 4 locks held by syz-executor344/6415: [ 33.570762][ T6415] #0: ffff0000c27dc420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 33.572668][ T6415] #1: ffff0000c5932b78 (&sb->s_type->i_mutex_key#16){+.+.}-{3:3}, at: do_truncate+0x1ac/0x28c [ 33.575015][ T6415] #2: ffff0000c5932988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x24c/0xa18 [ 33.577509][ T6415] #3: ffff0000d96e38f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_free+0xcc/0x4b8 [ 33.579676][ T6415] [ 33.579676][ T6415] stack backtrace: [ 33.580867][ T6415] CPU: 0 UID: 0 PID: 6415 Comm: syz-executor344 Not tainted 6.12.0-rc3-syzkaller-g86cada34bc3a #0 [ 33.583043][ T6415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 33.585142][ T6415] Call trace: [ 33.585829][ T6415] show_stack+0x2c/0x3c (C) [ 33.586793][ T6415] dump_stack_lvl+0xe4/0x150 [ 33.587813][ T6415] dump_stack+0x1c/0x28 [ 33.588708][ T6415] print_deadlock_bug+0x4e8/0x668 [ 33.589712][ T6415] __lock_acquire+0x6180/0x77c8 [ 33.590729][ T6415] lock_acquire+0x240/0x728 [ 33.591764][ T6415] __mutex_lock_common+0x190/0x21a0 [ 33.592877][ T6415] mutex_lock_nested+0x2c/0x38 [ 33.593903][ T6415] hfsplus_get_block+0x2c4/0x1168 [ 33.594938][ T6415] block_read_full_folio+0x3c4/0xbe0 [ 33.596073][ T6415] hfsplus_read_folio+0x28/0x38 [ 33.597083][ T6415] filemap_read_folio+0x108/0x318 [ 33.598123][ T6415] do_read_cache_folio+0x368/0x5c0 [ 33.599240][ T6415] read_cache_page+0x6c/0x15c [ 33.600175][ T6415] hfsplus_block_free+0x11c/0x4b8 [ 33.601213][ T6415] hfsplus_free_extents+0x148/0x8d4 [ 33.602271][ T6415] hfsplus_file_truncate+0x674/0xa18 [ 33.603464][ T6415] hfsplus_setattr+0x184/0x24c [ 33.604440][ T6415] notify_change+0x9f0/0xca0 [ 33.605445][ T6415] do_truncate+0x1c0/0x28c [ 33.606362][ T6415] vfs_truncate+0x2b8/0x360 [ 33.607389][ T6415] do_sys_truncate+0xe8/0x1ac [ 33.608382][ T6415] __arm64_sys_truncate+0x5c/0x70 [ 33.609455][ T6415] invoke_syscall+0x98/0x2b8 [ 33.610379][ T6415] el0_svc_common+0x130/0x23c [ 33.611395][ T6415] do_el0_svc+0x48/0x58 [ 33.612296][ T6415] el0_svc+0x54/0x168 [ 33.613152][ T6415] el0t_64_sync_handler+0x84/0x108 [ 33.614321][ T6415] el0t_64_sync+0x198/0x19c [ 33.616265][ T6415] hfsplus: unable to mark blocks free: error -5 [ 33.617521][ T6415] hfsplus: can't free extent executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program