Extracting prog: 2m1.164648148s
Minimizing prog: 58.029µs
Simplifying prog options: 0s
Extracting C: 29.766091433s
Simplifying C: 7m39.235914926s
extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {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(&(0x7f0000000000), &(0x7f0000000040)='./bus\x00', 0x200008, &(0x7f00000000c0)=ANY=[], 0x2, 0x626, &(0x7f0000000b00)="$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")
program crashed: possible deadlock in hfsplus_get_block
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
extracting C reproducer
testing compiled C program (duration=53.769864414s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus
program crashed: possible deadlock in hfsplus_get_block
simplifying C reproducer
testing compiled C program (duration=53.769864414s, {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$hfsplus
program crashed: possible deadlock in hfsplus_get_block
testing compiled C program (duration=53.769864414s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus
program crashed: possible deadlock in hfsplus_get_block
testing compiled C program (duration=53.769864414s, {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$hfsplus
program crashed: possible deadlock in hfsplus_get_block
testing compiled C program (duration=53.769864414s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus
program crashed: possible deadlock in hfsplus_get_block
testing compiled C program (duration=53.769864414s, {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$hfsplus
program crashed: possible deadlock in hfsplus_get_block
testing compiled C program (duration=53.769864414s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus
program crashed: possible deadlock in hfsplus_get_block
testing compiled C program (duration=53.769864414s, {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
program crashed: possible deadlock in hfsplus_get_block
reproducing took 10m10.166752796s
repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 1024
============================================
WARNING: possible recursive locking detected
5.15.182-syzkaller #0 Not tainted
--------------------------------------------
syz-executor403/4164 is trying to acquire lock:
ffff888075b11548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_get_block+0x39b/0x1530 fs/hfsplus/extents.c:260
but task is already holding lock:
ffff888075b107c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1b3/0x1950 fs/hfsplus/extents.c:458
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
5 locks held by syz-executor403/4164:
#0: ffff888076ee40e0 (&type->s_umount_key#42/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 fs/super.c:229
#1: ffff88807986b998 (&sbi->vh_mutex){+.+.}-{3:3}, at: hfsplus_fill_super+0x1286/0x1b90 fs/hfsplus/super.c:553
#2: ffff888075b000b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x150/0x1c0 fs/hfsplus/bfind.c:28
#3: ffff888075b107c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1b3/0x1950 fs/hfsplus/extents.c:458
#4: ffff88807986b8f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_allocate+0x91/0x900 fs/hfsplus/bitmap.c:35
stack backtrace:
CPU: 1 PID: 4164 Comm: syz-executor403 Not tainted 5.15.182-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
__lock_acquire+0x1227/0x7c60 kernel/locking/lockdep.c:-1
lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
__mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
hfsplus_get_block+0x39b/0x1530 fs/hfsplus/extents.c:260
block_read_full_page+0x2e8/0xd10 fs/buffer.c:2290
do_read_cache_page+0x8a1/0x1030 mm/filemap.c:-1
read_mapping_page include/linux/pagemap.h:515 [inline]
hfsplus_block_allocate+0xf4/0x900 fs/hfsplus/bitmap.c:37
hfsplus_file_extend+0xa8e/0x1950 fs/hfsplus/extents.c:469
hfsplus_bmap_reserve+0x11e/0x4f0 fs/hfsplus/btree.c:357
hfsplus_create_cat+0x180/0x1020 fs/hfsplus/catalog.c:272
hfsplus_fill_super+0x12f6/0x1b90 fs/hfsplus/super.c:560
mount_bdev+0x287/0x3c0 fs/super.c:1400
legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3013
do_mount fs/namespace.c:3356 [inline]
__do_sys_mount fs/namespace.c:3564 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3541
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9bb6d3493a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffe2e073508 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe2e073520 RCX: 00007f9bb6d3493a
RDX: 0000200000000000 RSI: 0000200000000040 RDI: 00007ffe2e073520
RBP: 0000200000000040 R08: 00007ffe2e073560 R09: 000000000000061e
R10: 0000000000200008 R11: 0000000000000286 R12: 0000200000000000
R13: 00007ffe2e073560 R14: 0000000000000003 R15: 0000000000200008
final repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 1024
============================================
WARNING: possible recursive locking detected
5.15.182-syzkaller #0 Not tainted
--------------------------------------------
syz-executor403/4164 is trying to acquire lock:
ffff888075b11548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_get_block+0x39b/0x1530 fs/hfsplus/extents.c:260
but task is already holding lock:
ffff888075b107c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1b3/0x1950 fs/hfsplus/extents.c:458
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
5 locks held by syz-executor403/4164:
#0: ffff888076ee40e0 (&type->s_umount_key#42/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 fs/super.c:229
#1: ffff88807986b998 (&sbi->vh_mutex){+.+.}-{3:3}, at: hfsplus_fill_super+0x1286/0x1b90 fs/hfsplus/super.c:553
#2: ffff888075b000b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_find_init+0x150/0x1c0 fs/hfsplus/bfind.c:28
#3: ffff888075b107c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1b3/0x1950 fs/hfsplus/extents.c:458
#4: ffff88807986b8f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_allocate+0x91/0x900 fs/hfsplus/bitmap.c:35
stack backtrace:
CPU: 1 PID: 4164 Comm: syz-executor403 Not tainted 5.15.182-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
__lock_acquire+0x1227/0x7c60 kernel/locking/lockdep.c:-1
lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
__mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
hfsplus_get_block+0x39b/0x1530 fs/hfsplus/extents.c:260
block_read_full_page+0x2e8/0xd10 fs/buffer.c:2290
do_read_cache_page+0x8a1/0x1030 mm/filemap.c:-1
read_mapping_page include/linux/pagemap.h:515 [inline]
hfsplus_block_allocate+0xf4/0x900 fs/hfsplus/bitmap.c:37
hfsplus_file_extend+0xa8e/0x1950 fs/hfsplus/extents.c:469
hfsplus_bmap_reserve+0x11e/0x4f0 fs/hfsplus/btree.c:357
hfsplus_create_cat+0x180/0x1020 fs/hfsplus/catalog.c:272
hfsplus_fill_super+0x12f6/0x1b90 fs/hfsplus/super.c:560
mount_bdev+0x287/0x3c0 fs/super.c:1400
legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3013
do_mount fs/namespace.c:3356 [inline]
__do_sys_mount fs/namespace.c:3564 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3541
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9bb6d3493a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffe2e073508 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe2e073520 RCX: 00007f9bb6d3493a
RDX: 0000200000000000 RSI: 0000200000000040 RDI: 00007ffe2e073520
RBP: 0000200000000040 R08: 00007ffe2e073560 R09: 000000000000061e
R10: 0000000000200008 R11: 0000000000000286 R12: 0000200000000000
R13: 00007ffe2e073560 R14: 0000000000000003 R15: 0000000000200008