Extracting prog: 1m46.405138718s Minimizing prog: 1m52.821968451s Simplifying prog options: 0s Extracting C: 26.182255679s Simplifying C: 4m3.524371789s 1 programs, 3 VMs, timeouts [15s 6m0s] extracting reproducer from 1 programs single: executing 1 programs separately with timeout 15s testing program (duration=15s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000180)='./file1\x00', 0x800800, &(0x7f00000001c0)=ANY=[], 0x1, 0x5ee, &(0x7f0000000c80)="$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") truncate(&(0x7f0000000000)='./file1\x00', 0x0) program crashed: possible deadlock in hfsplus_get_block single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000180)='./file1\x00', 0x800800, &(0x7f00000001c0)=ANY=[], 0x1, 0x5ee, &(0x7f0000000c80)="$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") program did not crash testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): truncate detailed listing: executing program 0: truncate(&(0x7f0000000000)='./file1\x00', 0x0) program did not crash testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate detailed listing: executing program 0: syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000180)='./file1\x00', 0x800800, &(0x7f00000001c0)=ANY=[], 0x1, 0x5ee, &(0x7f0000000c80)="$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") truncate(0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block simplifying C reproducer testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block testing compiled C program (duration=22.5s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-truncate program crashed: possible deadlock in hfsplus_get_block reproducing took 8m8.933747457s repro crashed as (corrupted=false): loop0: detected capacity change from 0 to 1024 ============================================ WARNING: possible recursive locking detected 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0 Not tainted -------------------------------------------- syz-executor842/5072 is trying to acquire lock: ffff888023989548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_get_block+0x383/0x14f0 fs/hfsplus/extents.c:260 but task is already holding lock: ffff88802398a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x2da/0xb50 fs/hfsplus/extents.c:576 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&HFSPLUS_I(inode)->extents_lock); lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** May be due to missing lock nesting notation 4 locks held by syz-executor842/5072: #0: ffff8880239b8420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409 #1: ffff88802398ab80 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #1: ffff88802398ab80 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: do_truncate+0x20c/0x310 fs/open.c:63 #2: ffff88802398a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x2da/0xb50 fs/hfsplus/extents.c:576 #3: ffff8880157900f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_free+0xbb/0x4e0 fs/hfsplus/bitmap.c:182 stack backtrace: CPU: 1 PID: 5072 Comm: syz-executor842 Not tainted 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 check_deadlock kernel/locking/lockdep.c:3062 [inline] validate_chain+0x15d3/0x5900 kernel/locking/lockdep.c:3856 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 hfsplus_get_block+0x383/0x14f0 fs/hfsplus/extents.c:260 block_read_full_folio+0x42e/0xe10 fs/buffer.c:2407 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2355 do_read_cache_folio+0x134/0x820 mm/filemap.c:3788 do_read_cache_page+0x30/0x200 mm/filemap.c:3854 read_mapping_page include/linux/pagemap.h:896 [inline] hfsplus_block_free+0x128/0x4e0 fs/hfsplus/bitmap.c:185 hfsplus_free_extents+0x17a/0xae0 fs/hfsplus/extents.c:363 hfsplus_file_truncate+0x7d0/0xb50 fs/hfsplus/extents.c:591 hfsplus_setattr+0x1ce/0x280 fs/hfsplus/inode.c:265 notify_change+0xb9d/0xe70 fs/attr.c:497 do_truncate+0x220/0x310 fs/open.c:65 vfs_truncate+0x2e1/0x3b0 fs/open.c:111 do_sys_truncate+0xde/0x190 fs/open.c:134 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f42ab9c85f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffe1c1f438 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f42ab9c85f9 RDX: 00007f42ab9c7691 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f42aba3b610 R08: 00000000000005e8 R09: 0000000000000000 final repro crashed as (corrupted=false): loop0: detected capacity change from 0 to 1024 ============================================ WARNING: possible recursive locking detected 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0 Not tainted -------------------------------------------- syz-executor842/5072 is trying to acquire lock: ffff888023989548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_get_block+0x383/0x14f0 fs/hfsplus/extents.c:260 but task is already holding lock: ffff88802398a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x2da/0xb50 fs/hfsplus/extents.c:576 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&HFSPLUS_I(inode)->extents_lock); lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** May be due to missing lock nesting notation 4 locks held by syz-executor842/5072: #0: ffff8880239b8420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409 #1: ffff88802398ab80 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #1: ffff88802398ab80 (&sb->s_type->i_mutex_key#14){+.+.}-{3:3}, at: do_truncate+0x20c/0x310 fs/open.c:63 #2: ffff88802398a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x2da/0xb50 fs/hfsplus/extents.c:576 #3: ffff8880157900f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_free+0xbb/0x4e0 fs/hfsplus/bitmap.c:182 stack backtrace: CPU: 1 PID: 5072 Comm: syz-executor842 Not tainted 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 check_deadlock kernel/locking/lockdep.c:3062 [inline] validate_chain+0x15d3/0x5900 kernel/locking/lockdep.c:3856 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 hfsplus_get_block+0x383/0x14f0 fs/hfsplus/extents.c:260 block_read_full_folio+0x42e/0xe10 fs/buffer.c:2407 filemap_read_folio+0x1a0/0x790 mm/filemap.c:2355 do_read_cache_folio+0x134/0x820 mm/filemap.c:3788 do_read_cache_page+0x30/0x200 mm/filemap.c:3854 read_mapping_page include/linux/pagemap.h:896 [inline] hfsplus_block_free+0x128/0x4e0 fs/hfsplus/bitmap.c:185 hfsplus_free_extents+0x17a/0xae0 fs/hfsplus/extents.c:363 hfsplus_file_truncate+0x7d0/0xb50 fs/hfsplus/extents.c:591 hfsplus_setattr+0x1ce/0x280 fs/hfsplus/inode.c:265 notify_change+0xb9d/0xe70 fs/attr.c:497 do_truncate+0x220/0x310 fs/open.c:65 vfs_truncate+0x2e1/0x3b0 fs/open.c:111 do_sys_truncate+0xde/0x190 fs/open.c:134 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f42ab9c85f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffe1c1f438 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f42ab9c85f9 RDX: 00007f42ab9c7691 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f42aba3b610 R08: 00000000000005e8 R09: 0000000000000000