Extracting prog: 4m57.487024516s
Minimizing prog: 25m47.00585846s
Simplifying prog options: 0s
Extracting C: 1m38.580353271s
Simplifying C: 9m12.106045667s
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x601c2, 0x0)
ftruncate(r0, 0x8800000)
program did not crash
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x601c2, 0x0)
ftruncate(r0, 0x8800000)
program crashed: possible deadlock in hfs_find_init
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$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")
openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x601c2, 0x0)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-ftruncate
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$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")
ftruncate(0xffffffffffffffff, 0x8800000)
program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-ftruncate
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x601c2, 0x0)
ftruncate(r0, 0x8800000)
program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$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")
r0 = openat(0xffffffffffffff9c, 0x0, 0x601c2, 0x0)
ftruncate(r0, 0x8800000)
program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
simplifying C reproducer
testing compiled C program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
program crashed: possible deadlock in hfs_find_init
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x601c2, 0x0)
ftruncate(r0, 0x8800000)
program crashed: possible deadlock in hfs_find_init
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x601c2, 0x0)
ftruncate(r0, 0x8800000)
program crashed: possible deadlock in hfs_find_init
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-openat-ftruncate
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f00000007c0), &(0x7f0000000280)='./file1\x00', 0x30008c0, &(0x7f00000002c0)=ANY=[@ANYBLOB="696f636861727365743d63703933322c6469725f756d61736b3d30303030303030303030303030303030303030303030302c66696c655f756d61736b3d3030303030303030303030303031303030312c636f6465706167653d6370313235352c747970653dc166d6432c00"], 0x11, 0x2fe, &(0x7f00000004c0)="$eJzs3U1rE0EcBvBndtNma0tdbUXwIFIN2ItovYiXSMmH8CRqk0JxqagtvuChiicRe/fu0aufQbwogud68iSe60FG5iXZl+xuEsnuJvr8oGGzszP7n8zOzkygWRDRf2u9dfD28nf1JwAXLvDyKuAA8IAagBM46e1u72ztBJ12XkEuTtdNLgGTU/Qds7HdScvqweawfPWuhoXoPiqGlPLat6qDoMrp3i/d+M4z+k5Qt71TJ3oVxZfl2ehZfs4B2CsimImS31LiEId4hMXSwiEiookkzPju2HF+wc7fHQdo2MFEz8Ynbfz/W4dVB1A4mZsaGf91u0qh2v2oTgrXe3oJp9Kd7ioxrax3ifczifezMFdWbHYpBq0qdSzO3OZW0LmwcTdoO3iOphU5bFm/ts2l25UXLYCVlLVpjl5pc5mHiPQZ5byuw4yqw5qJ/yGAWPxLuWcsgPgoPosbwscbtHvzv5oUqpl0S/mJljLxX8wuUdfSV0fB3jaazaYTO+SYPskpewZrQC09uFlnnLVlxr4g8AfFqXMdT+Qytbs0INdSaq41vb0KJyPXciyXqs3mVvAh+1SlEK/FdbGCH3iPVmT+76j4GsjtmWGvEQ0zFOhPXPXOeMtG1Bo2RY8cu18Pnpr9/d2l9ynWs0L/lX9PoxG8wm1cweKDx0/uuEHQua82bgXqctUbvT33FuxG0Jl5AUSTJmUDe+GeOqTWd3B3UCozsNWxFqjuHylJqmOFe1QvK7xe6j4wAe1e3Ubr03gupO60IZb0W0pZYnX2bcdIJlV3a6LyhI0+3PEpUx2abqpJhVn/heuVmpnsqRc/dZ4+5BcBtkSp5ti9FVyYV5oZOYAjI63g5rNXcP1rrr41o15znT0PnBv+jL6N8x8hWviCm/z+n4iIiIiIiIiIiIiIiIiIiIiIiIho2pTx/xJV15GIiIiIiIiIiIiIiIiIiIiIiIiIiIiIaNqtezC/e43u838x3PN/k49icc1Pgo/l+b/72+Dzf4mK9ycAAP//m053Mg==")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x601c2, 0x0)
ftruncate(r0, 0x8800000)
program crashed: possible deadlock in hfs_find_init
validation run: crashed=true
reproducing took 47m15.611643836s
repro crashed as (corrupted=false):
option from the mount to silence this warning.
=======================================================
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.0.17/5999 is trying to acquire lock:
ffff888033d5c0a0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
but task is already holding lock:
ffff888033d5c0a0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&tree->tree_lock/1);
lock(&tree->tree_lock/1);
*** DEADLOCK ***
May be due to missing lock nesting notation
5 locks held by syz.0.17/5999:
#0: ffff888039430480 (sb_writers#12){.+.+}-{0:0}, at: class_super_write_constructor include/linux/fs/super.h:128 [inline]
#0: ffff888039430480 (sb_writers#12){.+.+}-{0:0}, at: do_ftruncate+0x452/0x570 fs/open.c:194
#1: ffff8880332318c0 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: inode_lock_killable include/linux/fs.h:1032 [inline]
#1: ffff8880332318c0 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: do_truncate+0x171/0x220 fs/open.c:63
#2: ffff8880332316e8 (&HFS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfs_extend_file+0xda/0x14c0 fs/hfs/extent.c:397
#3: ffff888033d5c0a0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
#4: ffff888033230128 (&HFS_I(tree->inode)->extents_lock){+.+.}-{4:4}, at: hfs_extend_file+0xda/0x14c0 fs/hfs/extent.c:397
stack backtrace:
CPU: 1 UID: 0 PID: 5999 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_deadlock_bug+0x279/0x290 kernel/locking/lockdep.c:3041
check_deadlock kernel/locking/lockdep.c:3093 [inline]
validate_chain kernel/locking/lockdep.c:3895 [inline]
__lock_acquire+0x2540/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868
__mutex_lock_common kernel/locking/rtmutex_api.c:533 [inline]
mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:552
hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
hfs_extend_file+0x2f6/0x14c0 fs/hfs/extent.c:401
hfs_bmap_reserve+0x107/0x430 fs/hfs/btree.c:269
__hfs_ext_write_extent+0x1fa/0x470 fs/hfs/extent.c:121
__hfs_ext_cache_extent+0x6b/0x9b0 fs/hfs/extent.c:174
hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
hfs_extend_file+0x31e/0x14c0 fs/hfs/extent.c:401
hfs_get_block+0x3d7/0xbd0 fs/hfs/extent.c:353
__block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2145
block_write_begin fs/buffer.c:2256 [inline]
cont_write_begin+0x789/0xb50 fs/buffer.c:2594
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
cont_expand_zero fs/buffer.c:2522 [inline]
cont_write_begin+0x2fd/0xb50 fs/buffer.c:2584
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
hfs_file_truncate+0x19d/0xad0 fs/hfs/extent.c:495
hfs_inode_setattr+0x4a9/0x670 fs/hfs/inode.c:665
notify_change+0xc18/0xf60 fs/attr.c:546
do_truncate+0x1a4/0x220 fs/open.c:68
do_ftruncate+0x4b1/0x570 fs/open.c:195
do_sys_ftruncate fs/open.c:207 [inline]
__do_sys_ftruncate fs/open.c:212 [inline]
__se_sys_ftruncate fs/open.c:210 [inline]
__x64_sys_ftruncate+0x92/0xf0 fs/open.c:210
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f001c3cf749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff4eac8e58 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f001c625fa0 RCX: 00007f001c3cf749
RDX: 0000000000000000 RSI: 0000000008800000 RDI: 0000000000000004
RBP: 00007f001c453f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f001c625fa0 R14: 00007f001c625fa0 R15: 0000000000000002
------------[ cut here ]------------
rtmutex deadlock detected
WARNING: kernel/locking/rtmutex.c:1674 at 0x0, CPU#1: syz.0.17/5999
Modules linked in:
CPU: 1 UID: 0 PID: 5999 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:rt_mutex_handle_deadlock+0x21/0xb0 kernel/locking/rtmutex.c:1674
Code: 90 90 90 90 90 90 90 90 90 41 57 41 56 41 55 41 54 53 83 ff dd 0f 85 86 00 00 00 48 89 f7 e8 a6 3b 01 00 48 8d 3d 4f 40 17 04 <67> 48 0f b9 3a 4c 8d 3d 00 00 00 00 65 48 8b 1c 25 08 f0 aa 91 4c
RSP: 0018:ffffc90004676d30 EFLAGS: 00010286
RAX: 0000000080000000 RBX: ffffc90004676dc0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b3e9bc0 RDI: ffffffff8edcaef0
RBP: ffffc90004676ec8 R08: ffffffff8ed98d77 R09: 1ffffffff1db31ae
R10: dffffc0000000000 R11: fffffbfff1db31af R12: 1ffff920008cedb4
R13: ffffffff8ac56989 R14: ffff888033d5c048 R15: dffffc0000000000
FS: 000055558d8d3500(0000) GS:ffff888126e71000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f001c3b2a60 CR3: 0000000041976000 CR4: 00000000003526f0
Call Trace:
__rt_mutex_slowlock kernel/locking/rtmutex.c:1734 [inline]
__rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1760 [inline]
rt_mutex_slowlock+0x666/0x6b0 kernel/locking/rtmutex.c:1800
__rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline]
__mutex_lock_common kernel/locking/rtmutex_api.c:534 [inline]
mutex_lock_nested+0x16a/0x1d0 kernel/locking/rtmutex_api.c:552
hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
hfs_extend_file+0x2f6/0x14c0 fs/hfs/extent.c:401
hfs_bmap_reserve+0x107/0x430 fs/hfs/btree.c:269
__hfs_ext_write_extent+0x1fa/0x470 fs/hfs/extent.c:121
__hfs_ext_cache_extent+0x6b/0x9b0 fs/hfs/extent.c:174
hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
hfs_extend_file+0x31e/0x14c0 fs/hfs/extent.c:401
hfs_get_block+0x3d7/0xbd0 fs/hfs/extent.c:353
__block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2145
block_write_begin fs/buffer.c:2256 [inline]
cont_write_begin+0x789/0xb50 fs/buffer.c:2594
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
cont_expand_zero fs/buffer.c:2522 [inline]
cont_write_begin+0x2fd/0xb50 fs/buffer.c:2584
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
hfs_file_truncate+0x19d/0xad0 fs/hfs/extent.c:495
hfs_inode_setattr+0x4a9/0x670 fs/hfs/inode.c:665
notify_change+0xc18/0xf60 fs/attr.c:546
do_truncate+0x1a4/0x220 fs/open.c:68
do_ftruncate+0x4b1/0x570 fs/open.c:195
do_sys_ftruncate fs/open.c:207 [inline]
__do_sys_ftruncate fs/open.c:212 [inline]
__se_sys_ftruncate fs/open.c:210 [inline]
__x64_sys_ftruncate+0x92/0xf0 fs/open.c:210
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f001c3cf749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff4eac8e58 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f001c625fa0 RCX: 00007f001c3cf749
RDX: 0000000000000000 RSI: 0000000008800000 RDI: 0000000000000004
RBP: 00007f001c453f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f001c625fa0 R14: 00007f001c625fa0 R15: 0000000000000002
----------------
Code disassembly (best guess):
0: 90 nop
1: 90 nop
2: 90 nop
3: 90 nop
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 41 57 push %r15
b: 41 56 push %r14
d: 41 55 push %r13
f: 41 54 push %r12
11: 53 push %rbx
12: 83 ff dd cmp $0xffffffdd,%edi
15: 0f 85 86 00 00 00 jne 0xa1
1b: 48 89 f7 mov %rsi,%rdi
1e: e8 a6 3b 01 00 call 0x13bc9
23: 48 8d 3d 4f 40 17 04 lea 0x417404f(%rip),%rdi # 0x4174079
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 4c 8d 3d 00 00 00 00 lea 0x0(%rip),%r15 # 0x36
36: 65 48 8b 1c 25 08 f0 mov %gs:0xffffffff91aaf008,%rbx
3d: aa 91
3f: 4c rex.WR
final repro crashed as (corrupted=false):
option from the mount to silence this warning.
=======================================================
hfs: unable to locate alternate MDB
hfs: continuing without an alternate MDB
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.0.17/5999 is trying to acquire lock:
ffff888033d5c0a0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
but task is already holding lock:
ffff888033d5c0a0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&tree->tree_lock/1);
lock(&tree->tree_lock/1);
*** DEADLOCK ***
May be due to missing lock nesting notation
5 locks held by syz.0.17/5999:
#0: ffff888039430480 (sb_writers#12){.+.+}-{0:0}, at: class_super_write_constructor include/linux/fs/super.h:128 [inline]
#0: ffff888039430480 (sb_writers#12){.+.+}-{0:0}, at: do_ftruncate+0x452/0x570 fs/open.c:194
#1: ffff8880332318c0 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: inode_lock_killable include/linux/fs.h:1032 [inline]
#1: ffff8880332318c0 (&sb->s_type->i_mutex_key#22){+.+.}-{4:4}, at: do_truncate+0x171/0x220 fs/open.c:63
#2: ffff8880332316e8 (&HFS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfs_extend_file+0xda/0x14c0 fs/hfs/extent.c:397
#3: ffff888033d5c0a0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
#4: ffff888033230128 (&HFS_I(tree->inode)->extents_lock){+.+.}-{4:4}, at: hfs_extend_file+0xda/0x14c0 fs/hfs/extent.c:397
stack backtrace:
CPU: 1 UID: 0 PID: 5999 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_deadlock_bug+0x279/0x290 kernel/locking/lockdep.c:3041
check_deadlock kernel/locking/lockdep.c:3093 [inline]
validate_chain kernel/locking/lockdep.c:3895 [inline]
__lock_acquire+0x2540/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868
__mutex_lock_common kernel/locking/rtmutex_api.c:533 [inline]
mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:552
hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
hfs_extend_file+0x2f6/0x14c0 fs/hfs/extent.c:401
hfs_bmap_reserve+0x107/0x430 fs/hfs/btree.c:269
__hfs_ext_write_extent+0x1fa/0x470 fs/hfs/extent.c:121
__hfs_ext_cache_extent+0x6b/0x9b0 fs/hfs/extent.c:174
hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
hfs_extend_file+0x31e/0x14c0 fs/hfs/extent.c:401
hfs_get_block+0x3d7/0xbd0 fs/hfs/extent.c:353
__block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2145
block_write_begin fs/buffer.c:2256 [inline]
cont_write_begin+0x789/0xb50 fs/buffer.c:2594
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
cont_expand_zero fs/buffer.c:2522 [inline]
cont_write_begin+0x2fd/0xb50 fs/buffer.c:2584
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
hfs_file_truncate+0x19d/0xad0 fs/hfs/extent.c:495
hfs_inode_setattr+0x4a9/0x670 fs/hfs/inode.c:665
notify_change+0xc18/0xf60 fs/attr.c:546
do_truncate+0x1a4/0x220 fs/open.c:68
do_ftruncate+0x4b1/0x570 fs/open.c:195
do_sys_ftruncate fs/open.c:207 [inline]
__do_sys_ftruncate fs/open.c:212 [inline]
__se_sys_ftruncate fs/open.c:210 [inline]
__x64_sys_ftruncate+0x92/0xf0 fs/open.c:210
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f001c3cf749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff4eac8e58 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f001c625fa0 RCX: 00007f001c3cf749
RDX: 0000000000000000 RSI: 0000000008800000 RDI: 0000000000000004
RBP: 00007f001c453f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f001c625fa0 R14: 00007f001c625fa0 R15: 0000000000000002
------------[ cut here ]------------
rtmutex deadlock detected
WARNING: kernel/locking/rtmutex.c:1674 at 0x0, CPU#1: syz.0.17/5999
Modules linked in:
CPU: 1 UID: 0 PID: 5999 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:rt_mutex_handle_deadlock+0x21/0xb0 kernel/locking/rtmutex.c:1674
Code: 90 90 90 90 90 90 90 90 90 41 57 41 56 41 55 41 54 53 83 ff dd 0f 85 86 00 00 00 48 89 f7 e8 a6 3b 01 00 48 8d 3d 4f 40 17 04 <67> 48 0f b9 3a 4c 8d 3d 00 00 00 00 65 48 8b 1c 25 08 f0 aa 91 4c
RSP: 0018:ffffc90004676d30 EFLAGS: 00010286
RAX: 0000000080000000 RBX: ffffc90004676dc0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b3e9bc0 RDI: ffffffff8edcaef0
RBP: ffffc90004676ec8 R08: ffffffff8ed98d77 R09: 1ffffffff1db31ae
R10: dffffc0000000000 R11: fffffbfff1db31af R12: 1ffff920008cedb4
R13: ffffffff8ac56989 R14: ffff888033d5c048 R15: dffffc0000000000
FS: 000055558d8d3500(0000) GS:ffff888126e71000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f001c3b2a60 CR3: 0000000041976000 CR4: 00000000003526f0
Call Trace:
__rt_mutex_slowlock kernel/locking/rtmutex.c:1734 [inline]
__rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1760 [inline]
rt_mutex_slowlock+0x666/0x6b0 kernel/locking/rtmutex.c:1800
__rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline]
__mutex_lock_common kernel/locking/rtmutex_api.c:534 [inline]
mutex_lock_nested+0x16a/0x1d0 kernel/locking/rtmutex_api.c:552
hfs_find_init+0x18e/0x2c0 fs/hfs/bfind.c:-1
hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
hfs_extend_file+0x2f6/0x14c0 fs/hfs/extent.c:401
hfs_bmap_reserve+0x107/0x430 fs/hfs/btree.c:269
__hfs_ext_write_extent+0x1fa/0x470 fs/hfs/extent.c:121
__hfs_ext_cache_extent+0x6b/0x9b0 fs/hfs/extent.c:174
hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
hfs_extend_file+0x31e/0x14c0 fs/hfs/extent.c:401
hfs_get_block+0x3d7/0xbd0 fs/hfs/extent.c:353
__block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2145
block_write_begin fs/buffer.c:2256 [inline]
cont_write_begin+0x789/0xb50 fs/buffer.c:2594
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
cont_expand_zero fs/buffer.c:2522 [inline]
cont_write_begin+0x2fd/0xb50 fs/buffer.c:2584
hfs_write_begin+0x66/0xb0 fs/hfs/inode.c:52
hfs_file_truncate+0x19d/0xad0 fs/hfs/extent.c:495
hfs_inode_setattr+0x4a9/0x670 fs/hfs/inode.c:665
notify_change+0xc18/0xf60 fs/attr.c:546
do_truncate+0x1a4/0x220 fs/open.c:68
do_ftruncate+0x4b1/0x570 fs/open.c:195
do_sys_ftruncate fs/open.c:207 [inline]
__do_sys_ftruncate fs/open.c:212 [inline]
__se_sys_ftruncate fs/open.c:210 [inline]
__x64_sys_ftruncate+0x92/0xf0 fs/open.c:210
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f001c3cf749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff4eac8e58 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f001c625fa0 RCX: 00007f001c3cf749
RDX: 0000000000000000 RSI: 0000000008800000 RDI: 0000000000000004
RBP: 00007f001c453f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f001c625fa0 R14: 00007f001c625fa0 R15: 0000000000000002
----------------
Code disassembly (best guess):
0: 90 nop
1: 90 nop
2: 90 nop
3: 90 nop
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 41 57 push %r15
b: 41 56 push %r14
d: 41 55 push %r13
f: 41 54 push %r12
11: 53 push %rbx
12: 83 ff dd cmp $0xffffffdd,%edi
15: 0f 85 86 00 00 00 jne 0xa1
1b: 48 89 f7 mov %rsi,%rdi
1e: e8 a6 3b 01 00 call 0x13bc9
23: 48 8d 3d 4f 40 17 04 lea 0x417404f(%rip),%rdi # 0x4174079
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 4c 8d 3d 00 00 00 00 lea 0x0(%rip),%r15 # 0x36
36: 65 48 8b 1c 25 08 f0 mov %gs:0xffffffff91aaf008,%rbx
3d: aa 91
3f: 4c rex.WR