REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/11142 is trying to acquire lock: 0000000025d8f549 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_extend+0x1bb/0xf40 fs/hfsplus/extents.c:457 but task is already holding lock: 000000002233b08e (&tree->tree_lock){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30 which lock already depends on the new lock. REISERFS (device loop4): using ordered data mode 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 reiserfs: using flush barriers 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); lock(&tree->tree_lock); lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** 5 locks held by syz-executor.3/11142: #0: 000000008d35c8d8 (sb_writers#15){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000008d35c8d8 (sb_writers#15){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000c9d0fa23 (&type->i_mutex_dir_key#8/1){+.+.}, at: inode_lock_nested include/linux/fs.h:783 [inline] #1: 00000000c9d0fa23 (&type->i_mutex_dir_key#8/1){+.+.}, at: do_unlinkat+0x27d/0x660 fs/namei.c:4051 #2: 00000000215bdc9b (&sb->s_type->i_mutex_key#21){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000215bdc9b (&sb->s_type->i_mutex_key#21){+.+.}, at: vfs_unlink+0xca/0x4e0 fs/namei.c:3993 #3: 00000000dd9e7058 (&sbi->vh_mutex){+.+.}, at: hfsplus_unlink+0x140/0x820 fs/hfsplus/dir.c:370 #4: 000000002233b08e (&tree->tree_lock){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30 stack backtrace: CPU: 1 PID: 11142 Comm: syz-executor.3 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_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 RIP: 0033:0x20598000 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 002b:0000000020000188 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f6e305d01f0 RCX: 00007f6e304b00f9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000 RBP: 00007f6e3050bae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd58ae715f R14: 00007f6e2e9bf300 R15: 0000000000022000 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 XFS (loop2): Mounting V4 Filesystem REISERFS (device loop4): checking transaction log (loop4) XFS (loop2): Ending clean mount XFS (loop2): Quotacheck needed: Please wait. XFS (loop2): Quotacheck: Done. audit: type=1804 audit(1676441112.158:37): pid=11078 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir2930991042/syzkaller.HBJd49/18/file0/bus" dev="loop2" ino=43 res=1 REISERFS (device loop4): Using r5 hash to sort names REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. audit: type=1804 audit(1676441112.278:38): pid=11178 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir2930991042/syzkaller.HBJd49/18/file0/bus" dev="loop2" ino=43 res=1 XFS (loop2): Unmounting Filesystem audit: type=1800 audit(1676441112.528:39): pid=11118 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="loop4" ino=5 res=0 audit: type=1804 audit(1676441112.538:40): pid=11118 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir4138121620/syzkaller.Lmyfzo/19/file1/file0" dev="loop4" ino=5 res=1 XFS (loop5): Mounting V4 Filesystem audit: type=1804 audit(1676441112.548:41): pid=11118 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir4138121620/syzkaller.Lmyfzo/19/file1/bus" dev="loop4" ino=4 res=1 XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. audit: type=1804 audit(1676441112.548:42): pid=11118 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.4" name="/root/syzkaller-testdir4138121620/syzkaller.Lmyfzo/19/file1/bus" dev="loop4" ino=4 res=1 XFS (loop5): Quotacheck: Done. audit: type=1804 audit(1676441113.008:43): pid=11069 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir3388534442/syzkaller.z3l0l1/18/file0/bus" dev="loop5" ino=43 res=1 audit: type=1804 audit(1676441113.068:44): pid=11211 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir3388534442/syzkaller.z3l0l1/18/file0/bus" dev="loop5" ino=43 res=1 XFS (loop5): Unmounting Filesystem netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. XFS (loop4): Mounting V4 Filesystem XFS (loop2): Mounting V4 Filesystem XFS (loop4): Ending clean mount XFS (loop4): Quotacheck needed: Please wait. XFS (loop2): Ending clean mount XFS (loop4): Quotacheck: Done. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. XFS (loop2): Quotacheck needed: Please wait. XFS (loop2): Quotacheck: Done. XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop4): Unmounting Filesystem XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. XFS (loop2): Unmounting Filesystem XFS (loop5): Unmounting Filesystem netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. kauditd_printk_skb: 17 callbacks suppressed audit: type=1800 audit(1676441114.908:62): pid=11372 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14098 res=0 audit: type=1800 audit(1676441114.948:63): pid=11372 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14098 res=0 XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. audit: type=1800 audit(1676441115.188:64): pid=11396 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14099 res=0 audit: type=1800 audit(1676441115.188:65): pid=11396 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14099 res=0 audit: type=1804 audit(1676441115.279:66): pid=11383 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir3388534442/syzkaller.z3l0l1/20/file0/bus" dev="loop5" ino=43 res=1 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. audit: type=1804 audit(1676441115.369:67): pid=11413 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir3388534442/syzkaller.z3l0l1/20/file0/bus" dev="loop5" ino=43 res=1 audit: type=1800 audit(1676441115.419:68): pid=11411 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14024 res=0 audit: type=1800 audit(1676441115.429:69): pid=11411 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14024 res=0 XFS (loop5): Unmounting Filesystem netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. audit: type=1800 audit(1676441115.649:70): pid=11422 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14082 res=0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1800 audit(1676441115.679:71): pid=11422 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14082 res=0 XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. XFS (loop5): Unmounting Filesystem XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. XFS (loop5): Unmounting Filesystem XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. XFS (loop5): Unmounting Filesystem XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. nla_parse: 21 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. XFS (loop5): Unmounting Filesystem netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. XFS (loop3): Mounting V4 Filesystem XFS (loop3): Ending clean mount XFS (loop3): Quotacheck needed: Please wait. XFS (loop3): Quotacheck: Done. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. XFS (loop3): Unmounting Filesystem netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. XFS (loop5): Mounting V4 Filesystem XFS (loop2): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. XFS (loop2): Ending clean mount XFS (loop2): Quotacheck needed: Please wait. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. XFS (loop5): Unmounting Filesystem XFS (loop2): Quotacheck: Done. XFS (loop2): Unmounting Filesystem XFS (loop3): Mounting V4 Filesystem XFS (loop3): Ending clean mount XFS (loop3): Quotacheck needed: Please wait. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. XFS (loop3): Quotacheck: Done. XFS (loop3): Unmounting Filesystem kauditd_printk_skb: 73 callbacks suppressed audit: type=1800 audit(1676441119.959:145): pid=11771 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14074 res=0 XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. audit: type=1800 audit(1676441120.169:146): pid=11789 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14084 res=0 XFS (loop5): Quotacheck: Done. XFS (loop2): Mounting V4 Filesystem XFS (loop5): Unmounting Filesystem XFS (loop2): Ending clean mount XFS (loop2): Quotacheck needed: Please wait. XFS (loop2): Quotacheck: Done. audit: type=1804 audit(1676441120.489:147): pid=11760 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir2930991042/syzkaller.HBJd49/27/file0/bus" dev="loop2" ino=43 res=1 XFS (loop2): Unmounting Filesystem XFS (loop3): Mounting V4 Filesystem XFS (loop3): Ending clean mount