====================================================== 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