program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, 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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVdiBYwEAAAAAYf7WUfRtAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPwKAAD//+UFHyA=") r0 = open(&(0x7f0000000080)='./bus\x00', 0x400141042, 0x0) pwritev2(r0, &(0x7f0000000500)=[{&(0x7f00000011c0)='(', 0x1}], 0x1, 0x1000000, 0x0, 0x0) r1 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) ftruncate(r1, 0x2007ffa) sendfile(r1, r1, 0x0, 0x800000009) r2 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./bus\x00', 0x40942, 0x0) r3 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) r4 = open(&(0x7f0000000080)='./bus\x00', 0x185102, 0x0) sendfile(r3, r4, 0x0, 0x1000000201005) syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000100)=ANY=[@ANYRESOCT], 0x0) copy_file_range(r2, 0x0, r1, 0x0, 0xfffffbffa003e458, 0x700000000000000) writev(r4, &(0x7f0000000280)=[{&(0x7f00000001c0)='>#Cd', 0x4}], 0x1) r5 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r5, 0x4c09, 0x8000) prctl$PR_SET_MM(0x23, 0x7, &(0x7f0000ffc000/0x4000)=nil) lsetxattr$trusted_overlay_redirect(&(0x7f00000002c0)='./file1\x00', &(0x7f00000006c0), 0x0, 0x0, 0x1) r6 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$IOMMU_IOAS_ALLOC(r6, 0x3b81, &(0x7f0000000080)={0x19}) r7 = openat$iommufd(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0) ioctl$IOMMU_IOAS_ALLOC(r7, 0x3b81, &(0x7f0000000200)={0x15, 0x0, 0x0}) ioctl$IOMMU_TEST_OP_CREATE_ACCESS(r6, 0x3ba0, &(0x7f0000000340)={0x48, 0x5, r8, 0x0, 0xffffffffffffffff, 0x1}) ioctl$IOMMU_TEST_OP_ACCESS_PAGES$syz(r6, 0x3ba0, &(0x7f00000002c0)={0x48, 0x6, r9, 0x0, 0x10001, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffff7b}) creat(&(0x7f0000000000)='./bus\x00', 0x0) [ 74.562928][ T4690] Bluetooth: hci0: command tx timeout [ 74.626820][ T5339] loop0: detected capacity change from 0 to 1024 [ 75.121093][ T25] audit: type=1800 audit(1752964293.634:2): pid=5339 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="file1" dev="loop0" ino=20 res=0 errno=0 [ 75.130688][ T5339] [ 75.131810][ T5339] ====================================================== [ 75.134752][ T5339] WARNING: possible circular locking dependency detected [ 75.137635][ T5339] 6.16.0-rc6-syzkaller-00279-gbf61759db409 #0 Not tainted [ 75.140567][ T5339] ------------------------------------------------------ [ 75.143453][ T5339] syz.0.0/5339 is trying to acquire lock: [ 75.145915][ T5339] ffff88803ebba0b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 75.150196][ T5339] [ 75.150196][ T5339] but task is already holding lock: [ 75.153290][ T5339] ffff888053273048 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x294/0xb40 [ 75.157731][ T5339] [ 75.157731][ T5339] which lock already depends on the new lock. [ 75.157731][ T5339] [ 75.161488][ T5339] [ 75.161488][ T5339] the existing dependency chain (in reverse order) is: [ 75.164703][ T5339] [ 75.164703][ T5339] -> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}: [ 75.168415][ T5339] lock_acquire+0x120/0x360 [ 75.170433][ T5339] __mutex_lock+0x182/0xe80 [ 75.172601][ T5339] hfsplus_file_extend+0x1fc/0x1990 [ 75.175083][ T5339] hfsplus_bmap_reserve+0x122/0x500 [ 75.177491][ T5339] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 75.180152][ T5339] __hfsplus_ext_cache_extent+0x89/0xe30 [ 75.182808][ T5339] hfsplus_file_extend+0x444/0x1990 [ 75.185409][ T5339] hfsplus_get_block+0x411/0x1530 [ 75.187731][ T5339] __block_write_begin_int+0x6b2/0x1900 [ 75.190418][ T5339] cont_write_begin+0x789/0xb50 [ 75.192819][ T5339] hfsplus_write_begin+0x66/0xb0 [ 75.195270][ T5339] cont_write_begin+0x2fa/0xb50 [ 75.197949][ T5339] hfsplus_write_begin+0x66/0xb0 [ 75.200214][ T5339] generic_perform_write+0x2c7/0x910 [ 75.202756][ T5339] generic_file_write_iter+0x10f/0x540 [ 75.205335][ T5339] do_iter_readv_writev+0x56e/0x7f0 [ 75.207564][ T5339] vfs_writev+0x31a/0x960 [ 75.209621][ T5339] __se_sys_pwritev2+0x179/0x290 [ 75.212282][ T5339] do_syscall_64+0xfa/0x3b0 [ 75.214428][ T5339] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.217344][ T5339] [ 75.217344][ T5339] -> #0 (&tree->tree_lock/1){+.+.}-{4:4}: [ 75.220792][ T5339] validate_chain+0xb9b/0x2140 [ 75.223015][ T5339] __lock_acquire+0xab9/0xd20 [ 75.225329][ T5339] lock_acquire+0x120/0x360 [ 75.227647][ T5339] __mutex_lock+0x182/0xe80 [ 75.231430][ T5339] hfsplus_find_init+0x15a/0x1d0 [ 75.233791][ T5339] hfsplus_file_truncate+0x383/0xb40 [ 75.236340][ T5339] hfsplus_setattr+0x1c4/0x270 [ 75.238565][ T5339] notify_change+0xb33/0xe40 [ 75.240902][ T5339] do_truncate+0x1a4/0x220 [ 75.242981][ T5339] do_ftruncate+0x489/0x540 [ 75.245060][ T5339] __x64_sys_ftruncate+0x92/0xf0 [ 75.247528][ T5339] do_syscall_64+0xfa/0x3b0 [ 75.249665][ T5339] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.252424][ T5339] [ 75.252424][ T5339] other info that might help us debug this: [ 75.252424][ T5339] [ 75.256656][ T5339] Possible unsafe locking scenario: [ 75.256656][ T5339] [ 75.259829][ T5339] CPU0 CPU1 [ 75.262000][ T5339] ---- ---- [ 75.264281][ T5339] lock(&HFSPLUS_I(inode)->extents_lock); [ 75.266780][ T5339] lock(&tree->tree_lock/1); [ 75.269987][ T5339] lock(&HFSPLUS_I(inode)->extents_lock); [ 75.273608][ T5339] lock(&tree->tree_lock/1); [ 75.275452][ T5339] [ 75.275452][ T5339] *** DEADLOCK *** [ 75.275452][ T5339] [ 75.278628][ T5339] 3 locks held by syz.0.0/5339: [ 75.280787][ T5339] #0: ffff888042596428 (sb_writers#12){.+.+}-{0:0}, at: do_ftruncate+0x42a/0x540 [ 75.284746][ T5339] #1: ffff888053273238 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: do_truncate+0x171/0x220 [ 75.289268][ T5339] #2: ffff888053273048 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x294/0xb40 [ 75.294750][ T5339] [ 75.294750][ T5339] stack backtrace: [ 75.297438][ T5339] CPU: 0 UID: 0 PID: 5339 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller-00279-gbf61759db409 #0 PREEMPT(full) [ 75.297456][ T5339] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.297465][ T5339] Call Trace: [ 75.297473][ T5339] [ 75.297480][ T5339] dump_stack_lvl+0x189/0x250 [ 75.297500][ T5339] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.297515][ T5339] ? __pfx__printk+0x10/0x10 [ 75.297530][ T5339] ? print_lock_name+0xde/0x100 [ 75.297547][ T5339] print_circular_bug+0x2ee/0x310 [ 75.297562][ T5339] check_noncircular+0x134/0x160 [ 75.297576][ T5339] validate_chain+0xb9b/0x2140 [ 75.297586][ T5339] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 75.297603][ T5339] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 75.297624][ T5339] __lock_acquire+0xab9/0xd20 [ 75.297638][ T5339] ? hfsplus_find_init+0x15a/0x1d0 [ 75.297653][ T5339] lock_acquire+0x120/0x360 [ 75.297663][ T5339] ? hfsplus_find_init+0x15a/0x1d0 [ 75.297678][ T5339] __mutex_lock+0x182/0xe80 [ 75.297689][ T5339] ? hfsplus_find_init+0x15a/0x1d0 [ 75.297702][ T5339] ? hfsplus_find_init+0x15a/0x1d0 [ 75.297714][ T5339] ? __pfx___mutex_lock+0x10/0x10 [ 75.297728][ T5339] ? rcu_is_watching+0x15/0xb0 [ 75.297744][ T5339] ? __kmalloc_noprof+0x29b/0x4f0 [ 75.297756][ T5339] ? hfsplus_find_init+0x8c/0x1d0 [ 75.297767][ T5339] hfsplus_find_init+0x15a/0x1d0 [ 75.297779][ T5339] hfsplus_file_truncate+0x383/0xb40 [ 75.297795][ T5339] ? __pfx_hfsplus_file_truncate+0x10/0x10 [ 75.297817][ T5339] ? unmap_mapping_range+0xde/0x170 [ 75.297829][ T5339] ? __pfx_unmap_mapping_range+0x10/0x10 [ 75.297842][ T5339] ? truncate_setsize+0xcf/0xf0 [ 75.297853][ T5339] hfsplus_setattr+0x1c4/0x270 [ 75.297865][ T5339] ? __pfx_hfsplus_setattr+0x10/0x10 [ 75.297879][ T5339] notify_change+0xb33/0xe40 [ 75.297894][ T5339] do_truncate+0x1a4/0x220 [ 75.297906][ T5339] ? __pfx_do_truncate+0x10/0x10 [ 75.297920][ T5339] do_ftruncate+0x489/0x540 [ 75.297932][ T5339] ? __pfx_do_ftruncate+0x10/0x10 [ 75.297943][ T5339] ? __fget_files+0x2a/0x420 [ 75.297957][ T5339] __x64_sys_ftruncate+0x92/0xf0 [ 75.297968][ T5339] do_syscall_64+0xfa/0x3b0 [ 75.297979][ T5339] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.297989][ T5339] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.298000][ T5339] ? clear_bhb_loop+0x60/0xb0 [ 75.298012][ T5339] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.298021][ T5339] RIP: 0033:0x7fb82158e9a9 [ 75.298033][ T5339] 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 [ 75.298042][ T5339] RSP: 002b:00007fb822381038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d [ 75.298054][ T5339] RAX: ffffffffffffffda RBX: 00007fb8217b5fa0 RCX: 00007fb82158e9a9 [ 75.298063][ T5339] RDX: 0000000000000000 RSI: 0000000002007ffa RDI: 0000000000000005 [ 75.298070][ T5339] RBP: 00007fb821610d69 R08: 0000000000000000 R09: 0000000000000000 [ 75.298076][ T5339] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.298083][ T5339] R13: 0000000000000000 R14: 00007fb8217b5fa0 R15: 00007ffec88c4608 [ 75.298093][ T5339] [ 75.684715][ T9] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 75.814984][ T9] usb 5-1: device descriptor read/64, error -71 [ 76.054842][ T9] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 76.184729][ T9] usb 5-1: device descriptor read/64, error -71 [ 76.256198][ T1314] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.258842][ T1314] ieee802154 phy1 wpan1: encryption failed: -22 [ 76.294977][ T9] usb usb5-port1: attempt power cycle [ 76.574871][ T4690] Bluetooth: hci0: command tx timeout [ 76.634761][ T9] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 76.660030][ T9] usb 5-1: device descriptor read/8, error -71 [ 76.895249][ T9] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 76.915661][ T9] usb 5-1: device descriptor read/8, error -71 [ 77.024980][ T9] usb usb5-port1: unable to enumerate USB device