wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 hfsplus: Filesystem was not cleanly unmounted, running fsck.hfsplus is recommended. mounting read-only. ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.4/4230 is trying to acquire lock: 0000000057ab80ba (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_get_block+0x292/0x960 fs/hfsplus/extents.c:260 but task is already holding lock: 000000001fe19420 (&tree->tree_lock){+.+.}, 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){+.+.}: hfsplus_file_truncate+0xde7/0x1040 fs/hfsplus/extents.c:595 hfsplus_file_release+0xeb/0x210 fs/hfsplus/inode.c:233 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 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); lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock); lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** 2 locks held by syz-executor.4/4230: #0: 000000000f3d12c7 (&type->s_umount_key#52/1){+.+.}, at: alloc_super fs/super.c:226 [inline] #0: 000000000f3d12c7 (&type->s_umount_key#52/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519 #1: 000000001fe19420 (&tree->tree_lock){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30 stack backtrace: CPU: 1 PID: 4230 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 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: 0033:0x7fed55d2862a 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:00007fed54298f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000638 RCX: 00007fed55d2862a RDX: 0000000020000040 RSI: 0000000020000640 RDI: 00007fed54298fe0 RBP: 00007fed54299020 R08: 00007fed54299020 R09: 0000000000000050 R10: 0000000000000050 R11: 0000000000000202 R12: 0000000020000040 R13: 0000000020000640 R14: 00007fed54298fe0 R15: 00000000200003c0 hfsplus: failed to load root directory hfsplus: Filesystem was not cleanly unmounted, running fsck.hfsplus is recommended. mounting read-only. hfsplus: failed to load root directory REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. hfsplus: Filesystem was not cleanly unmounted, running fsck.hfsplus is recommended. mounting read-only. hfsplus: failed to load root directory REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. XFS (loop4): unknown mount option [swid00000000000]. audit: type=1804 audit(1676278068.439:1219): pid=4725 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir684589103/syzkaller.6AMQAU/807/memory.events" dev="sda1" ino=15014 res=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1800 audit(1676278068.439:1220): pid=4725 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="memory.events" dev="sda1" ino=15014 res=0 audit: type=1804 audit(1676278068.519:1221): pid=4732 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir684589103/syzkaller.6AMQAU/808/memory.events" dev="sda1" ino=13988 res=1 batman_adv: Cannot find parent device audit: type=1800 audit(1676278068.519:1222): pid=4732 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="memory.events" dev="sda1" ino=13988 res=0 device erspan1 entered promiscuous mode XFS (loop4): unknown mount option [swid00000000000]. f2fs_msg: 8 callbacks suppressed F2FS-fs (loop1): Unrecognized mount option "extent_test_dummy_encry:tin" or missing value F2FS-fs (loop1): Unrecognized mount option "extent_test_dummy_encry:tin" or missing value audit: type=1804 audit(1676278069.119:1223): pid=4804 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir684589103/syzkaller.6AMQAU/809/memory.events" dev="sda1" ino=14005 res=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1800 audit(1676278069.119:1224): pid=4804 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="memory.events" dev="sda1" ino=14005 res=0 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. XFS (loop4): unknown mount option [swid00000000000]. netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. IPVS: ftp: loaded support on port[0] = 21 netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 60 bytes leftover after parsing attributes in process `syz-executor.4'. Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 Left network mode F2FS-fs (loop1): Unrecognized mount option "extent_test_dummy_encry:tin" or missing value F2FS-fs (loop1): Unrecognized mount option "extent_test_dummy_encry:tin" or missing value IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 Left network mode Left network mode Left network mode Left network mode IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9 Started in network mode Own node identity 9, cluster identity 4711 32-bit node address hash set to 9