======================================================
WARNING: possible circular locking dependency detected
4.19.211-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.2/24063 is trying to acquire lock:
00000000a1f72db4 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_get_block+0x292/0x960 fs/hfsplus/extents.c:260

but task is already holding lock:
000000009f1828e8 (&tree->tree_lock#2){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&tree->tree_lock#2){+.+.}:
       hfsplus_file_truncate+0xde7/0x1040 fs/hfsplus/extents.c:595
       hfsplus_setattr+0x1e7/0x310 fs/hfsplus/inode.c:263
       notify_change+0x70b/0xfc0 fs/attr.c:334
       do_truncate+0x134/0x1f0 fs/open.c:63
       handle_truncate fs/namei.c:3009 [inline]
       do_last fs/namei.c:3427 [inline]
       path_openat+0x2308/0x2df0 fs/namei.c:3537
       do_filp_open+0x18c/0x3f0 fs/namei.c:3567
       do_sys_open+0x3b3/0x520 fs/open.c:1085
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&HFSPLUS_I(inode)->extents_lock){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:937 [inline]
       __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078
       hfsplus_get_block+0x292/0x960 fs/hfsplus/extents.c:260
       block_read_full_page+0x288/0xd10 fs/buffer.c:2259
       do_read_cache_page+0x533/0x1170 mm/filemap.c:2828
       read_mapping_page include/linux/pagemap.h:402 [inline]
       __hfs_bnode_create+0x5b7/0xb60 fs/hfsplus/bnode.c:447
       hfsplus_bnode_find+0x2aa/0xb80 fs/hfsplus/bnode.c:497
       hfsplus_brec_find+0x2af/0x500 fs/hfsplus/bfind.c:183
       hfsplus_brec_read+0x28/0x120 fs/hfsplus/bfind.c:222
       hfsplus_find_cat+0x1d0/0x480 fs/hfsplus/catalog.c:202
       hfsplus_iget+0x400/0x790 fs/hfsplus/super.c:81
       hfsplus_fill_super+0xc5f/0x19e0 fs/hfsplus/super.c:503
       mount_bdev+0x2fc/0x3b0 fs/super.c:1158
       mount_fs+0xa3/0x310 fs/super.c:1261
       vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
       vfs_kern_mount fs/namespace.c:951 [inline]
       do_new_mount fs/namespace.c:2492 [inline]
       do_mount+0x115c/0x2f50 fs/namespace.c:2822
       ksys_mount+0xcf/0x130 fs/namespace.c:3038
       __do_sys_mount fs/namespace.c:3052 [inline]
       __se_sys_mount fs/namespace.c:3049 [inline]
       __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&tree->tree_lock#2);
                               lock(&HFSPLUS_I(inode)->extents_lock);
                               lock(&tree->tree_lock#2);
  lock(&HFSPLUS_I(inode)->extents_lock);

 *** DEADLOCK ***

2 locks held by syz-executor.2/24063:
 #0: 0000000017db6cd8 (&type->s_umount_key#88/1){+.+.}, at: alloc_super fs/super.c:226 [inline]
 #0: 0000000017db6cd8 (&type->s_umount_key#88/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519
 #1: 000000009f1828e8 (&tree->tree_lock#2){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30

stack backtrace:
CPU: 0 PID: 24063 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222
 check_prev_add kernel/locking/lockdep.c:1866 [inline]
 check_prevs_add kernel/locking/lockdep.c:1979 [inline]
 validate_chain kernel/locking/lockdep.c:2420 [inline]
 __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
 __mutex_lock_common kernel/locking/mutex.c:937 [inline]
 __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078
 hfsplus_get_block+0x292/0x960 fs/hfsplus/extents.c:260
 block_read_full_page+0x288/0xd10 fs/buffer.c:2259
 do_read_cache_page+0x533/0x1170 mm/filemap.c:2828
 read_mapping_page include/linux/pagemap.h:402 [inline]
 __hfs_bnode_create+0x5b7/0xb60 fs/hfsplus/bnode.c:447
 hfsplus_bnode_find+0x2aa/0xb80 fs/hfsplus/bnode.c:497
 hfsplus_brec_find+0x2af/0x500 fs/hfsplus/bfind.c:183
 hfsplus_brec_read+0x28/0x120 fs/hfsplus/bfind.c:222
 hfsplus_find_cat+0x1d0/0x480 fs/hfsplus/catalog.c:202
 hfsplus_iget+0x400/0x790 fs/hfsplus/super.c:81
 hfsplus_fill_super+0xc5f/0x19e0 fs/hfsplus/super.c:503
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f21afe1262a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 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:00007f21ae382f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000000005f8 RCX: 00007f21afe1262a
RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007f21ae382fe0
RBP: 00007f21ae383020 R08: 00007f21ae383020 R09: 0000000000200008
R10: 0000000000200008 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000040 R14: 00007f21ae382fe0 R15: 0000000020000100
hfsplus: failed to load root directory
hfsplus: failed to load root directory
Dead loop on virtual device ip6_vti0, fix it urgently!
hfsplus: failed to load root directory
audit: type=1804 audit(1678110739.287:323): pid=24138 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/471/cgroup.controllers" dev="sda1" ino=14280 res=1
Dead loop on virtual device ip6_vti0, fix it urgently!
Dead loop on virtual device ip6_vti0, fix it urgently!
IPVS: ftp: loaded support on port[0] = 21
Dead loop on virtual device ip6_vti0, fix it urgently!
Dead loop on virtual device ip6_vti0, fix it urgently!
Dead loop on virtual device ip6_vti0, fix it urgently!
Dead loop on virtual device ip6_vti0, fix it urgently!
Dead loop on virtual device ip6_vti0, fix it urgently!
audit: type=1804 audit(1678110740.417:324): pid=24160 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/472/cgroup.controllers" dev="sda1" ino=14218 res=1
audit: type=1804 audit(1678110740.447:325): pid=24181 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/472/cgroup.controllers" dev="sda1" ino=14218 res=1
audit: type=1804 audit(1678110740.707:326): pid=24289 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/473/cgroup.controllers" dev="sda1" ino=13920 res=1
netlink: 'syz-executor.1': attribute type 4 has an invalid length.
IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready
XFS (loop4): DAX enabled. Warning: EXPERIMENTAL, use at your own risk
XFS (loop4): DAX unsupported by block device. Turning off DAX.
XFS (loop4): Mounting V4 Filesystem
XFS (loop4): Ending clean mount
XFS (loop4): Quotacheck needed: Please wait.
XFS (loop4): Quotacheck: Done.
audit: type=1804 audit(1678110741.797:327): pid=24369 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/477/bus" dev="sda1" ino=13991 res=1
audit: type=1804 audit(1678110741.837:328): pid=24369 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/477/bus" dev="sda1" ino=13991 res=1
audit: type=1804 audit(1678110741.837:329): pid=24369 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/477/bus" dev="sda1" ino=13991 res=1
XFS (loop4): Unmounting Filesystem
audit: type=1804 audit(1678110742.017:330): pid=24445 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/478/bus" dev="sda1" ino=14851 res=1
audit: type=1804 audit(1678110742.107:331): pid=24445 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/478/bus" dev="sda1" ino=14851 res=1
audit: type=1804 audit(1678110742.107:332): pid=24445 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/478/bus" dev="sda1" ino=14851 res=1
XFS (loop4): DAX enabled. Warning: EXPERIMENTAL, use at your own risk
XFS (loop4): DAX unsupported by block device. Turning off DAX.
XFS (loop4): Mounting V4 Filesystem
XFS (loop4): Ending clean mount
XFS (loop4): Quotacheck needed: Please wait.
XFS (loop4): Quotacheck: Done.
XFS (loop4): Unmounting Filesystem
XFS (loop4): DAX enabled. Warning: EXPERIMENTAL, use at your own risk
XFS (loop4): DAX unsupported by block device. Turning off DAX.
XFS (loop4): Mounting V4 Filesystem
XFS (loop4): Ending clean mount
XFS (loop4): Quotacheck needed: Please wait.
XFS (loop4): Quotacheck: Done.
XFS (loop4): Unmounting Filesystem
REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
REISERFS (device loop4): checking transaction log (loop4)
REISERFS (device loop4): Using r5 hash to sort names
REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage.
base_sock_release(00000000c2ead5dd) sk=          (null)
base_sock_release(00000000ab1c05af) sk=0000000032ed4430
nla_parse: 65 callbacks suppressed
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
base_sock_release(00000000b334e596) sk=          (null)
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
REISERFS warning (device loop4): super-6502 reiserfs_getopt: unknown mount option "/dev/nvme-fabrics"
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
base_sock_release(0000000010a955a0) sk=000000005dac837b
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop4): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
REISERFS (device loop4): checking transaction log (loop4)
kauditd_printk_skb: 78 callbacks suppressed
audit: type=1800 audit(1678110744.377:411): pid=24689 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=13991 res=0
REISERFS (device loop4): Using r5 hash to sort names
audit: type=1804 audit(1678110744.407:412): pid=24689 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3528053014/syzkaller.Z7AtSF/484/file0" dev="sda1" ino=13991 res=1
REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage.
base_sock_release(00000000601bee00) sk=          (null)
audit: type=1804 audit(1678110744.477:413): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
audit: type=1804 audit(1678110744.487:414): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
audit: type=1804 audit(1678110744.487:415): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
audit: type=1804 audit(1678110744.487:416): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
audit: type=1804 audit(1678110744.487:417): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
audit: type=1804 audit(1678110744.487:418): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
audit: type=1804 audit(1678110744.487:419): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
audit: type=1804 audit(1678110744.487:420): pid=24692 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2426942847/syzkaller.YTPndN/476/file1/bus" dev="loop4" ino=4 res=1
base_sock_release(00000000091695ba) sk=0000000026ecc635
base_sock_release(000000001b37c20c) sk=000000008e360486
base_sock_release(00000000820724a6) sk=000000007c6a749b
base_sock_release(00000000f2458b88) sk=000000002f00023b
base_sock_release(000000000bf026ac) sk=00000000ec481e70
base_sock_release(000000009667caa5) sk=000000000d46abbc
base_sock_release(0000000063f5ce24) sk=0000000032f556e7
base_sock_release(00000000b2b4212e) sk=000000008c5f0e01
base_sock_release(00000000c21a4526) sk=0000000074892aeb
base_sock_release(000000001309efc1) sk=000000003ae4455e
base_sock_release(0000000065e92e6d) sk=000000006fc4e80b
base_sock_release(000000002f2a5a9b) sk=000000008fb0d4bd
base_sock_release(000000004e03dfe7) sk=000000005f5ad61a
base_sock_release(00000000e4e10176) sk=00000000785323db
base_sock_release(00000000688047de) sk=0000000073131a34
base_sock_release(00000000a443d256) sk=00000000a73ee6d9
base_sock_release(00000000ccdcd99e) sk=00000000444366f4
base_sock_release(000000009a173756) sk=00000000aa07132d
base_sock_release(0000000088040302) sk=000000008d49f6f4
base_sock_release(000000007d352c68) sk=00000000f521df4a
base_sock_release(00000000136b672a) sk=0000000060117d28
base_sock_release(000000005312ccb6) sk=00000000a701f170
base_sock_release(00000000b89aec3c) sk=0000000028a4f6e1
base_sock_release(00000000dd1245c9) sk=0000000022edc1a8
base_sock_release(0000000048c1b21a) sk=0000000064f97ea3
base_sock_release(000000000c05b476) sk=0000000058cf70b3
base_sock_release(000000001d54d464) sk=0000000039ec5da0
base_sock_release(0000000086b2d013) sk=0000000092f76d5b
base_sock_release(00000000c030eaa8) sk=0000000091f209c1
base_sock_release(00000000a4c07f3d) sk=000000005939339f
base_sock_release(0000000006ebdb4e) sk=00000000e92f7bc1
base_sock_release(00000000266cc759) sk=0000000026cc8d94
base_sock_release(00000000f8a93ae8) sk=00000000af5cfeb3
base_sock_release(000000003131fab6) sk=00000000099969d4
base_sock_release(0000000065d6ecd2) sk=00000000dd3bcb2c
base_sock_release(000000009ebb181b) sk=0000000000b55e38
base_sock_release(0000000066eb2b66) sk=00000000f999f8c9
base_sock_release(00000000a13a2663) sk=0000000088512186
base_sock_release(0000000018e95dc2) sk=00000000784a8d97
base_sock_release(00000000b5b8c641) sk=00000000d14a8dea
base_sock_release(000000003c674fd1) sk=000000009d68a3e6
base_sock_release(00000000cd4a1f38) sk=0000000066cde207
base_sock_release(00000000ad86a890) sk=0000000096706eca
base_sock_release(0000000057a40421) sk=000000002e14189a
base_sock_release(000000006eac367e) sk=00000000afada0a3
base_sock_release(0000000089771a64) sk=00000000aa90a742
base_sock_release(0000000037444819) sk=0000000033a2aacd
base_sock_release(0000000066d5fbf1) sk=00000000368a0d9a
base_sock_release(000000003abe7015) sk=000000006f358cd4
base_sock_release(00000000ad0aac43) sk=0000000007d02ada
base_sock_release(000000002a869940) sk=00000000fcda035b
base_sock_release(0000000090e09764) sk=0000000014bdea3a
base_sock_release(000000007bd9b01b) sk=0000000015b120df
base_sock_release(000000007d8b1327) sk=00000000960bf427
base_sock_release(000000000d714909) sk=00000000facc6c1e
base_sock_release(000000008862c70e) sk=000000001d5f746d
base_sock_release(00000000fd8c6fb6) sk=0000000028c749ef
base_sock_release(00000000eddbfe10) sk=0000000097ccc509
base_sock_release(0000000065081ea0) sk=000000000b0ec846
base_sock_release(000000001544fafd) sk=00000000708b0b14
base_sock_release(0000000059749ad9) sk=0000000011585a2e
base_sock_release(00000000305cc306) sk=0000000036bb7de6
base_sock_release(00000000e944431f) sk=00000000160d89a4
base_sock_release(000000004cd21cb7) sk=00000000dcb097df
base_sock_release(000000003be6a2a4) sk=000000000deba48e