REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop1): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/10064 is trying to acquire lock: 000000008bc31acc (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_extend+0x1bb/0xf40 fs/hfsplus/extents.c:457 but task is already holding lock: 00000000971a48b6 (&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_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_file_extend+0x1bb/0xf40 fs/hfsplus/extents.c:457 hfsplus_bmap_reserve+0x298/0x440 fs/hfsplus/btree.c:357 hfsplus_rename_cat+0x272/0x1490 fs/hfsplus/catalog.c:456 hfsplus_unlink+0x49c/0x820 fs/hfsplus/dir.c:376 vfs_unlink+0x27d/0x4e0 fs/namei.c:4002 do_unlinkat+0x3b8/0x660 fs/namei.c:4065 do_coredump+0x1f9c/0x2d60 fs/coredump.c:687 get_signal+0xed9/0x1f70 kernel/signal.c:2583 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode+0x277/0x2d0 arch/x86/entry/common.c:198 retint_user+0x8/0x18 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&tree->tree_lock); lock(&HFSPLUS_I(inode)->extents_lock); overlayfs: upper fs needs to support d_type. lock(&tree->tree_lock); lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** 5 locks held by syz-executor.0/10064: #0: 000000000b5c2109 (sb_writers#17){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000000b5c2109 (sb_writers#17){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 overlayfs: upper fs does not support tmpfile. #1: 00000000043959a2 (&type->i_mutex_dir_key#9/1){+.+.}, at: inode_lock_nested include/linux/fs.h:783 [inline] #1: 00000000043959a2 (&type->i_mutex_dir_key#9/1){+.+.}, at: do_unlinkat+0x27d/0x660 fs/namei.c:4051 #2: 000000009d68ceb5 (&sb->s_type->i_mutex_key#23){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 000000009d68ceb5 (&sb->s_type->i_mutex_key#23){+.+.}, at: vfs_unlink+0xca/0x4e0 fs/namei.c:3993 overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off. #3: 0000000027b55682 (&sbi->vh_mutex){+.+.}, at: hfsplus_unlink+0x140/0x820 fs/hfsplus/dir.c:370 #4: 00000000971a48b6 (&tree->tree_lock){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30 stack backtrace: CPU: 0 PID: 10064 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 overlayfs: failed to resolve './file0': -2 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_file_extend+0x1bb/0xf40 fs/hfsplus/extents.c:457 hfsplus_bmap_reserve+0x298/0x440 fs/hfsplus/btree.c:357 hfsplus_rename_cat+0x272/0x1490 fs/hfsplus/catalog.c:456 hfsplus_unlink+0x49c/0x820 fs/hfsplus/dir.c:376 vfs_unlink+0x27d/0x4e0 fs/namei.c:4002 do_unlinkat+0x3b8/0x660 fs/namei.c:4065 do_coredump+0x1f9c/0x2d60 fs/coredump.c:687 get_signal+0xed9/0x1f70 kernel/signal.c:2583 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 F2FS-fs (loop4): Unrecognized mount option "prjquota=nolazytime" or missing value exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 F2FS-fs (loop4): Unrecognized mount option "prjquota=nolazytime" or missing value prepare_exit_to_usermode+0x277/0x2d0 arch/x86/entry/common.c:198 retint_user+0x8/0x18 RIP: 0033: (null) Code: Bad RIP value. RSP: 002b:0000000020000188 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007feddd725120 RCX: 00007feddd6050f9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000 RBP: 00007feddd660ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9d20fe9f R14: 00007feddbb35300 R15: 0000000000022000 REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal REISERFS (device loop1): using ordered data mode REISERFS (device loop3): Using r5 hash to sort names REISERFS (device loop5): found reiserfs format "3.5" with non-standard journal reiserfs: using flush barriers reiserfs: enabling write barrier flush mode REISERFS (device loop5): using ordered data mode REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. 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: using flush barriers REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 overlayfs: upper fs needs to support d_type. REISERFS (device loop1): checking transaction log (loop1) overlayfs: upper fs does not support tmpfile. REISERFS (device loop5): checking transaction log (loop5) overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off. REISERFS (device loop1): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop5): Using r5 hash to sort names REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. F2FS-fs (loop0): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop0): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop4): Unrecognized mount option "prjquota=nolazytime" or missing value reiserfs: enabling write barrier flush mode REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. F2FS-fs (loop4): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop2): Unrecognized mount option "prjquota=nolazytime" or missing value overlayfs: upper fs needs to support d_type. audit: type=1800 audit(1677346974.217:2): pid=10214 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=13946 res=0 F2FS-fs (loop2): Unrecognized mount option "prjquota=nolazytime" or missing value overlayfs: upper fs does not support tmpfile. audit: type=1804 audit(1677346974.247:3): pid=10215 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir1573809646/syzkaller.IDgqpv/6/file0" dev="sda1" ino=13946 res=1 overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off. REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal F2FS-fs (loop0): Unrecognized mount option "prjquota=nolazytime" or missing value REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers overlayfs: failed to resolve './file0': -2 F2FS-fs (loop0): Unrecognized mount option "prjquota=nolazytime" or missing value 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: enabling write barrier flush mode REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop3): found reiserfs format "3.5" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. overlayfs: upper fs needs to support d_type. overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off. nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. overlayfs: failed to resolve './file0': -2 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. Unknown ioctl -1072131211 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: attaching mtd0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: scanning is finished Unknown ioctl -1072131211 ubi0: empty MTD device detected netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: VID header offset: 64 (aligned 64), data offset: 128 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 2710961383 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi0: background thread "ubi_bgt0d" started, PID 10356 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. ubi: mtd0 is already attached to ubi0 ubi: mtd0 is already attached to ubi0 ubi: mtd0 is already attached to ubi0 ubi: mtd0 is already attached to ubi0 ubi: mtd0 is already attached to ubi0 f2fs_msg: 20 callbacks suppressed F2FS-fs (loop2): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop2): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop0): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop0): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop3): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop3): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop2): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop2): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop3): Unrecognized mount option "prjquota=nolazytime" or missing value F2FS-fs (loop3): Unrecognized mount option "prjquota=nolazytime" or missing value