program: syz_read_part_table(0x5df, &(0x7f0000000000)="$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") r0 = creat(&(0x7f00000000c0)='./file0\x00', 0x0) dup2(r0, r0) symlink(&(0x7f0000000040)='.\x00', &(0x7f0000000100)='./file0\x00') r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc2(&(0x7f00000001c0), 0xffffffffffffffff) r4 = bpf$MAP_CREATE_TAIL_CALL(0x0, &(0x7f0000000b00)={0x3, 0x4, 0x4, 0xa, 0x0, 0x0, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) r5 = socket$pppoe(0x18, 0x1, 0x0) connect$pppoe(r5, &(0x7f0000000400)={0x18, 0x0, {0x3, @dev={'\xaa\xaa\xaa\xaa\xaa', 0xa}, 'batadv_slave_0\x00'}}, 0x1e) r6 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$PPPIOCNEWUNIT(r6, 0xc004743e, &(0x7f00000000c0)) bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x78) r7 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$EVIOCGPROP(r7, 0x40047438, &(0x7f0000000180)=""/246) ioctl$PPPIOCSFLAGS1(r7, 0x4004743a, &(0x7f0000000300)) ioctl$PPPIOCGCHAN(r5, 0x80047437, &(0x7f0000001f00)) sendmmsg(r5, &(0x7f0000001d00)=[{{0x0, 0x0, &(0x7f0000000940)=[{&(0x7f0000000440)='-SQn', 0x4}], 0x1}}], 0x1, 0x24005805) bpf$PROG_LOAD(0x5, &(0x7f0000000680)={0xd, 0x8, &(0x7f0000000740)=@framed={{0x18, 0x0, 0x0, 0x0, 0x5}, [@tail_call={{0x18, 0x2, 0x1, 0x0, r4}, {}, {0x85, 0x0, 0x0, 0xa0}}]}, &(0x7f0000000780)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @sock_ops, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) sendmsg$TIPC_NL_KEY_SET(r2, &(0x7f0000000b80)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000bc0)={0x30, r3, 0x1, 0x0, 0x25dfdbfc, {0x3}, [@TIPC_NLA_MON={0x1c, 0x9, 0x0, 0x1, [@TIPC_NLA_MON_ACTIVATION_THRESHOLD={0x2f, 0x1, 0xa}, @TIPC_NLA_MON_REF={0x8, 0x2, 0x7f}, @TIPC_NLA_MON_ACTIVATION_THRESHOLD={0x8, 0x1, 0x3}]}]}, 0x79}}, 0x44) sendmsg$TIPC_NL_BEARER_ADD(r1, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000d00)={0x60, r3, 0x4c1dad3e3d6a7499, 0x70bd2b, 0x25dfdbfb, {}, [@TIPC_NLA_BEARER={0x4c, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_UDP_OPTS={0x38, 0x4, {{0x14, 0x1, @in={0x2, 0x4e20, @dev={0xac, 0x14, 0x14, 0x1d}}}, {0x20, 0x2, @in6={0x63, 0x4e20, 0x4, @empty, 0x4}}}}, @TIPC_NLA_BEARER_NAME={0xd, 0x1, @udp='udp:syz2\x00'}]}]}, 0x60}, 0x1, 0x0, 0x0, 0x4000080}, 0x20000000) syz_mount_image$udf(&(0x7f0000000040), &(0x7f0000000540)='./file0\x00', 0x1000000, &(0x7f0000001bc0)=ANY=[@ANYBLOB="7569643d666f726765742c6c6f6e6761642c0035c1701df5d0b87a690f389896bca4e14c591f52cffb8d200b5096c943638e5d4750164db51b14f083138115db86bc99dd686929c2ee5f67cf547d32f667d7eec1e69a809925a5885847d555a95f9227fd9c5a91d7c029c0bd580f0bc9b700095edce34f56718910977bfb316f32c1e812f0c435f568cf6a28fd67f19cb260306ccf0da5b288fe8993"], 0x1, 0x4e8, &(0x7f00000005c0)="$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") r8 = syz_usb_connect$cdc_ncm(0x0, 0x72, &(0x7f0000000000)=ANY=[@ANYRES64=r2, @ANYBLOB="f7", @ANYRESDEC], 0x0) syz_usb_control_io(r8, 0x0, &(0x7f0000000780)={0x84, &(0x7f0000000300)={0x0, 0x1, 0x1, '6'}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) openat$cgroup_subtree(r0, &(0x7f0000000ac0), 0x2, 0x0) syz_usb_ep_write(r8, 0x81, 0x8, &(0x7f0000000080)="0001000000000000") syz_usb_disconnect(r8) r9 = socket$can_bcm(0x1d, 0x2, 0x2) connect$can_bcm(r9, &(0x7f0000000000), 0x10) socket$can_j1939(0x1d, 0x2, 0x7) [ 75.346587][ T5312] Bluetooth: hci0: command tx timeout [ 75.427664][ T5327] loop0: detected capacity change from 0 to 2048 [ 75.461486][ T5327] Alternate GPT is invalid, using primary GPT. [ 75.465899][ T5327] loop0: p1 p2 p3 [ 75.794303][ T5324] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 75.924768][ T5324] usb 5-1: device descriptor read/64, error -71 [ 76.147568][ T1310] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.149883][ T1310] ieee802154 phy1 wpan1: encryption failed: -22 [ 76.164407][ T5324] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 76.297988][ T5324] usb 5-1: device descriptor read/64, error -71 [ 76.404371][ T5324] usb usb5-port1: attempt power cycle [ 76.744750][ T5324] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 76.766555][ T5324] usb 5-1: device descriptor read/8, error -71 [ 77.004246][ T5324] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 77.025689][ T5324] usb 5-1: device descriptor read/8, error -71 [ 77.135013][ T5324] usb usb5-port1: unable to enumerate USB device [ 77.425576][ T5312] Bluetooth: hci0: command tx timeout [ 78.564393][ T5327] [ 78.565353][ T5327] ====================================================== [ 78.568045][ T5327] WARNING: possible circular locking dependency detected [ 78.570796][ T5327] 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 Not tainted [ 78.573457][ T5327] ------------------------------------------------------ [ 78.576305][ T5327] syz.0.0/5327 is trying to acquire lock: [ 78.578675][ T5327] ffff88803603c0f8 (kn->active#5){++++}-{0:0}, at: __kernfs_remove+0x33b/0x570 [ 78.582217][ T5327] [ 78.582217][ T5327] but task is already holding lock: [ 78.584997][ T5327] ffff888032e4d358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1a9/0x650 [ 78.588955][ T5327] [ 78.588955][ T5327] which lock already depends on the new lock. [ 78.588955][ T5327] [ 78.594172][ T5327] [ 78.594172][ T5327] the existing dependency chain (in reverse order) is: [ 78.598416][ T5327] [ 78.598416][ T5327] -> #2 (&disk->open_mutex){+.+.}-{4:4}: [ 78.601199][ T5327] lock_acquire+0x120/0x360 [ 78.603147][ T5327] __mutex_lock+0x182/0xe80 [ 78.604997][ T5327] bdev_open+0xe0/0xd30 [ 78.606793][ T5327] bdev_file_open_by_dev+0x1b9/0x230 [ 78.608834][ T5327] disk_scan_partitions+0x1c1/0x2c0 [ 78.610764][ T5327] add_disk_fwnode+0xdbc/0x10e0 [ 78.612768][ T5327] pmem_attach_disk+0xbc7/0xdc0 [ 78.614918][ T5327] nvdimm_bus_probe+0x144/0x490 [ 78.617401][ T5327] really_probe+0x26a/0x9a0 [ 78.619366][ T5327] __driver_probe_device+0x18c/0x2f0 [ 78.621653][ T5327] driver_probe_device+0x4f/0x430 [ 78.623824][ T5327] __driver_attach+0x452/0x700 [ 78.625962][ T5327] bus_for_each_dev+0x230/0x2b0 [ 78.628133][ T5327] bus_add_driver+0x345/0x640 [ 78.630462][ T5327] driver_register+0x23a/0x320 [ 78.632624][ T5327] do_one_initcall+0x233/0x820 [ 78.634707][ T5327] do_initcall_level+0x137/0x1f0 [ 78.636888][ T5327] do_initcalls+0x69/0xd0 [ 78.638797][ T5327] kernel_init_freeable+0x3d9/0x570 [ 78.640855][ T5327] kernel_init+0x1d/0x1d0 [ 78.642794][ T5327] ret_from_fork+0x4b/0x80 [ 78.644816][ T5327] ret_from_fork_asm+0x1a/0x30 [ 78.646923][ T5327] [ 78.646923][ T5327] -> #1 (&nvdimm_namespace_key){+.+.}-{4:4}: [ 78.650207][ T5327] lock_acquire+0x120/0x360 [ 78.652267][ T5327] __mutex_lock+0x182/0xe80 [ 78.654207][ T5327] uevent_show+0x174/0x330 [ 78.656139][ T5327] dev_attr_show+0x55/0xc0 [ 78.658272][ T5327] sysfs_kf_seq_show+0x30d/0x490 [ 78.660395][ T5327] seq_read_iter+0x4e7/0xe10 [ 78.662503][ T5327] vfs_read+0x4cd/0x980 [ 78.664403][ T5327] ksys_read+0x145/0x250 [ 78.666090][ T5327] do_syscall_64+0xf6/0x210 [ 78.668035][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.670512][ T5327] [ 78.670512][ T5327] -> #0 (kn->active#5){++++}-{0:0}: [ 78.673398][ T5327] validate_chain+0xb9b/0x2140 [ 78.675504][ T5327] __lock_acquire+0xaac/0xd20 [ 78.677560][ T5327] lock_acquire+0x120/0x360 [ 78.679511][ T5327] kernfs_drain+0x27a/0x5e0 [ 78.681428][ T5327] __kernfs_remove+0x33b/0x570 [ 78.683591][ T5327] kernfs_remove_by_name_ns+0xaf/0x130 [ 78.685856][ T5327] device_del+0x4f0/0x8e0 [ 78.687754][ T5327] drop_partition+0x11b/0x180 [ 78.689744][ T5327] bdev_disk_changed+0x28c/0x14b0 [ 78.691770][ T5327] lo_release+0x514/0x7e0 [ 78.693627][ T5327] bdev_release+0x533/0x650 [ 78.695700][ T5327] blkdev_release+0x15/0x20 [ 78.697821][ T5327] __fput+0x449/0xa70 [ 78.699692][ T5327] task_work_run+0x1d1/0x260 [ 78.701660][ T5327] do_exit+0x8d6/0x2550 [ 78.703483][ T5327] do_group_exit+0x21c/0x2d0 [ 78.705495][ T5327] get_signal+0x125e/0x1310 [ 78.707627][ T5327] arch_do_signal_or_restart+0x95/0x780 [ 78.709805][ T5327] syscall_exit_to_user_mode+0x8b/0x120 [ 78.712121][ T5327] do_syscall_64+0x103/0x210 [ 78.714092][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.716543][ T5327] [ 78.716543][ T5327] other info that might help us debug this: [ 78.716543][ T5327] [ 78.720272][ T5327] Chain exists of: [ 78.720272][ T5327] kn->active#5 --> &nvdimm_namespace_key --> &disk->open_mutex [ 78.720272][ T5327] [ 78.725545][ T5327] Possible unsafe locking scenario: [ 78.725545][ T5327] [ 78.728588][ T5327] CPU0 CPU1 [ 78.730823][ T5327] ---- ---- [ 78.732992][ T5327] lock(&disk->open_mutex); [ 78.734946][ T5327] lock(&nvdimm_namespace_key); [ 78.737379][ T5327] lock(&disk->open_mutex); [ 78.740104][ T5327] lock(kn->active#5); [ 78.741758][ T5327] [ 78.741758][ T5327] *** DEADLOCK *** [ 78.741758][ T5327] [ 78.744913][ T5327] 1 lock held by syz.0.0/5327: [ 78.746788][ T5327] #0: ffff888032e4d358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1a9/0x650 [ 78.750300][ T5327] [ 78.750300][ T5327] stack backtrace: [ 78.752431][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(full) [ 78.752445][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 78.752449][ T5327] Call Trace: [ 78.752456][ T5327] [ 78.752461][ T5327] dump_stack_lvl+0x189/0x250 [ 78.752477][ T5327] ? __pfx_dump_stack_lvl+0x10/0x10 [ 78.752486][ T5327] ? __pfx__printk+0x10/0x10 [ 78.752494][ T5327] ? print_lock_name+0xde/0x100 [ 78.752500][ T5327] print_circular_bug+0x2ee/0x310 [ 78.752509][ T5327] check_noncircular+0x134/0x160 [ 78.752521][ T5327] validate_chain+0xb9b/0x2140 [ 78.752527][ T5327] ? arch_do_signal_or_restart+0x95/0x780 [ 78.752537][ T5327] ? lockdep_unlock+0x89/0x120 [ 78.752546][ T5327] __lock_acquire+0xaac/0xd20 [ 78.752555][ T5327] ? __kernfs_remove+0x33b/0x570 [ 78.752562][ T5327] lock_acquire+0x120/0x360 [ 78.752570][ T5327] ? __kernfs_remove+0x33b/0x570 [ 78.752576][ T5327] ? up_write+0x1c4/0x420 [ 78.752583][ T5327] kernfs_drain+0x27a/0x5e0 [ 78.752591][ T5327] ? __kernfs_remove+0x33b/0x570 [ 78.752600][ T5327] ? __pfx_kernfs_drain+0x10/0x10 [ 78.752611][ T5327] __kernfs_remove+0x33b/0x570 [ 78.752620][ T5327] kernfs_remove_by_name_ns+0xaf/0x130 [ 78.752630][ T5327] device_del+0x4f0/0x8e0 [ 78.752639][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 78.752653][ T5327] ? __pfx_device_del+0x10/0x10 [ 78.752662][ T5327] ? kobject_put+0x43f/0x480 [ 78.752676][ T5327] drop_partition+0x11b/0x180 [ 78.752689][ T5327] bdev_disk_changed+0x28c/0x14b0 [ 78.752700][ T5327] ? __pfx_bdev_disk_changed+0x10/0x10 [ 78.752707][ T5327] ? kobject_uevent_env+0x36b/0x8c0 [ 78.752716][ T5327] lo_release+0x514/0x7e0 [ 78.752725][ T5327] ? __pfx_lo_release+0x10/0x10 [ 78.752733][ T5327] ? do_raw_spin_unlock+0x4d/0x240 [ 78.752740][ T5327] ? __pfx_lo_release+0x10/0x10 [ 78.752745][ T5327] bdev_release+0x533/0x650 [ 78.752754][ T5327] ? __pfx_blkdev_release+0x10/0x10 [ 78.752760][ T5327] blkdev_release+0x15/0x20 [ 78.752767][ T5327] __fput+0x449/0xa70 [ 78.752775][ T5327] task_work_run+0x1d1/0x260 [ 78.752785][ T5327] ? __pfx_task_work_run+0x10/0x10 [ 78.752794][ T5327] do_exit+0x8d6/0x2550 [ 78.752803][ T5327] ? do_raw_spin_lock+0x121/0x290 [ 78.752810][ T5327] ? __pfx_do_exit+0x10/0x10 [ 78.752817][ T5327] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 78.752826][ T5327] do_group_exit+0x21c/0x2d0 [ 78.752834][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 78.752841][ T5327] get_signal+0x125e/0x1310 [ 78.752850][ T5327] arch_do_signal_or_restart+0x95/0x780 [ 78.752857][ T5327] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 78.752864][ T5327] ? local_irq_enable_exit_to_user+0x5/0x10 [ 78.752875][ T5327] syscall_exit_to_user_mode+0x8b/0x120 [ 78.752883][ T5327] do_syscall_64+0x103/0x210 [ 78.752892][ T5327] ? clear_bhb_loop+0x45/0xa0 [ 78.752904][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.752913][ T5327] RIP: 0033:0x7f782038e56b [ 78.752922][ T5327] Code: Unable to access opcode bytes at 0x7f782038e541. [ 78.752926][ T5327] RSP: 002b:00007f7821175f10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 78.752937][ T5327] RAX: fffffffffffffffc RBX: 000000000000000b RCX: 00007f782038e56b [ 78.752943][ T5327] RDX: 00007f7821176fe0 RSI: 0000000080085502 RDI: 000000000000000b [ 78.752947][ T5327] RBP: 00007f7821176fe0 R08: 0000000000000080 R09: 00007f7821175fd8 [ 78.752952][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502 [ 78.752956][ T5327] R13: 0000000800000000 R14: 0000000000000008 R15: 00007f782041ba1e [ 78.752962][ T5327] [ 78.938901][ T5329] udevd[5329]: inotify_add_watch(7, /dev/loop0p1, 10) failed: No such file or directory