====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium ------------------------------------------------------ syz-executor.4/12753 is trying to acquire lock: 0000000066ed9de1 (&HFSPLUS_I(inode)->extents_lock){+.+.}, at: hfsplus_file_extend+0x1bb/0xf40 fs/hfsplus/extents.c:457 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium but task is already holding lock: 00000000ab3ec8c0 (&tree->tree_lock){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30 which lock already depends on the new lock. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium 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 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium 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 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium 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); lock(&tree->tree_lock); mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium lock(&HFSPLUS_I(inode)->extents_lock); *** DEADLOCK *** 5 locks held by syz-executor.4/12753: #0: 000000004df9be0f (sb_writers#24){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000004df9be0f (sb_writers#24){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 0000000053e27ac0 (&type->i_mutex_dir_key#12/1){+.+.}, at: inode_lock_nested include/linux/fs.h:783 [inline] #1: 0000000053e27ac0 (&type->i_mutex_dir_key#12/1){+.+.}, at: do_unlinkat+0x27d/0x660 fs/namei.c:4051 #2: 0000000050112e57 (&sb->s_type->i_mutex_key#28){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 0000000050112e57 (&sb->s_type->i_mutex_key#28){+.+.}, at: vfs_unlink+0xca/0x4e0 fs/namei.c:3993 #3: 00000000dde9bab5 (&sbi->vh_mutex){+.+.}, at: hfsplus_unlink+0x140/0x820 fs/hfsplus/dir.c:370 #4: 00000000ab3ec8c0 (&tree->tree_lock){+.+.}, at: hfsplus_find_init+0x1b7/0x220 fs/hfsplus/bfind.c:30 stack backtrace: CPU: 0 PID: 12753 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium 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 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium 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: 0033:0x7f1c3e169101 Code: c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 48 3d 01 f0 ff ff 73 01 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f RSP: 002b:00000000200000f0 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f1c3e289050 RCX: 00007f1c3e1690f9 RDX: 0000000020000100 RSI: 00000000200000f0 RDI: 0000000001220000 RBP: 00007f1c3e1c4ae9 R08: 0000000020000280 R09: 0000000020000280 R10: 0000000020000180 R11: 0000000000000206 R12: 0000000000000000 R13: 00007ffe8be65c2f R14: 00007f1c3c6ba300 R15: 0000000000022000 nla_parse: 6 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium ntfs: volume version 3.1. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium device bond8 entered promiscuous mode mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium IPv6: ADDRCONF(NETDEV_UP): bond8: link is not ready mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium 8021q: adding VLAN 0 to HW filter on device bond8 netlink: 28 bytes leftover after parsing attributes in process `syz-executor.1'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium netlink: 28 bytes leftover after parsing attributes in process `syz-executor.1'. IPVS: ftp: loaded support on port[0] = 21 f2fs_msg: 11 callbacks suppressed F2FS-fs (loop5): Wrong SSA boundary, start(3584) end(4096) blocks(1536) F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. F2FS-fs (loop5): invalid crc value F2FS-fs (loop5): Mismatch valid blocks 4 vs. 6 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. F2FS-fs (loop5): Failed to initialize F2FS segment manager F2FS-fs (loop5): Wrong SSA boundary, start(3584) end(4096) blocks(1536) device bond9 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bond9: link is not ready F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock 8021q: adding VLAN 0 to HW filter on device bond9 F2FS-fs (loop5): invalid crc value netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. F2FS-fs (loop5): Mismatch valid blocks 4 vs. 6 F2FS-fs (loop5): Failed to initialize F2FS segment manager netlink: 100 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 100 bytes leftover after parsing attributes in process `syz-executor.3'. ntfs: volume version 3.1. IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 ntfs: volume version 3.1. IPVS: ftp: loaded support on port[0] = 21 audit: type=1800 audit(1677999387.837:108): pid=13284 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="loop1" ino=22 res=0 attempt to access beyond end of device loop1: rw=34817, want=314, limit=64 attempt to access beyond end of device loop1: rw=34817, want=1337, limit=64 chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected audit: type=1800 audit(1677999388.077:109): pid=13328 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="sda1" ino=14256 res=0 chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 not in group (block 2)! audit: type=1800 audit(1677999388.217:110): pid=13345 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.1" name="bus" dev="loop1" ino=22 res=0 attempt to access beyond end of device loop1: rw=34817, want=314, limit=64 attempt to access beyond end of device EXT4-fs (loop4): group descriptors corrupted! loop1: rw=34817, want=4171, limit=64 attempt to access beyond end of device chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect loop1: rw=34817, want=4194, limit=64 chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT attempt to access beyond end of device loop1: rw=34817, want=4200, limit=64 chnl_net:chnl_net_open(): state disconnected EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 not in group (block 2)! EXT4-fs (loop4): group descriptors corrupted! chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 not in group (block 2)! chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 EXT4-fs (loop4): group descriptors corrupted! caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected nla_parse: 14 callbacks suppressed netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected syz-executor.5 (13548): drop_caches: 2 syz-executor.5 (13548): drop_caches: 2 netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect syz-executor.5 (13623): drop_caches: 2 syz-executor.5 (13623): drop_caches: 2 chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected syz-executor.5 (13635): drop_caches: 2 syz-executor.5 (13635): drop_caches: 2 netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected netlink: 25 bytes leftover after parsing attributes in process `syz-executor.1'. chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected