INFO: task syz.4.260:4765 blocked for more than 144 seconds.
Not tainted 5.15.164-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.260 state:D stack:22624 pid: 4765 ppid: 4118 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
xlog_grant_head_wait+0x381/0x900 fs/xfs/xfs_log.c:256
xlog_grant_head_check+0x295/0x480
xfs_log_reserve+0x3b8/0xb10 fs/xfs/xfs_log.c:464
xfs_trans_reserve+0x23d/0x690 fs/xfs/xfs_trans.c:197
xfs_trans_alloc+0x420/0x7f0 fs/xfs/xfs_trans.c:288
xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1047
xfs_attr_set+0x848/0x1460 fs/xfs/libxfs/xfs_attr.c:772
xfs_xattr_set+0x227/0x3a0 fs/xfs/xfs_xattr.c:59
__vfs_setxattr+0x3e7/0x420 fs/xattr.c:182
__vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216
vfs_setxattr+0x21d/0x420 fs/xattr.c:303
do_setxattr fs/xattr.c:588 [inline]
setxattr+0x27e/0x2e0 fs/xattr.c:611
path_setxattr+0x1bc/0x2a0 fs/xattr.c:630
__do_sys_setxattr fs/xattr.c:646 [inline]
__se_sys_setxattr fs/xattr.c:642 [inline]
__x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:642
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f98296009f9
RSP: 002b:00007f9827a7f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f982978ef80 RCX: 00007f98296009f9
RDX: 0000000020000100 RSI: 0000000020000340 RDI: 0000000020000040
RBP: 00007f982966e8ee R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fc21 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f982978ef80 R15: 00007ffc0368d9d8
INFO: task syz.4.260:4806 blocked for more than 145 seconds.
Not tainted 5.15.164-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.260 state:D stack:26840 pid: 4806 ppid: 4118 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
xlog_grant_head_wait+0x381/0x900 fs/xfs/xfs_log.c:256
xlog_grant_head_check+0x295/0x480
xfs_log_reserve+0x3b8/0xb10 fs/xfs/xfs_log.c:464
xfs_trans_reserve+0x23d/0x690 fs/xfs/xfs_trans.c:197
xfs_trans_alloc+0x420/0x7f0 fs/xfs/xfs_trans.c:288
xfs_trans_alloc_icreate+0xc5/0x2b0 fs/xfs/xfs_trans.c:1102
xfs_create+0x745/0x1370 fs/xfs/xfs_inode.c:1018
xfs_generic_create+0x426/0xd00 fs/xfs/xfs_iops.c:197
lookup_open fs/namei.c:3462 [inline]
open_last_lookups fs/namei.c:3532 [inline]
path_openat+0x130a/0x2f20 fs/namei.c:3739
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f98296009f9
RSP: 002b:00007f9827a5e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f982978f058 RCX: 00007f98296009f9
RDX: 000000000000275a RSI: 00000000200000c0 RDI: ffffffffffffff9c
RBP: 00007f982966e8ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f982978f058 R15: 00007ffc0368d9d8
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3321:
#0: ffff888024bca098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc9000249b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by kworker/u5:3/3573:
#0: ffff88807b975138 ((wq_completion)hci5){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90002e07d20 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffff888057664ff0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open+0xa4/0x1330 net/bluetooth/hci_core.c:1446
2 locks held by kworker/0:7/3614:
#0: ffff888011c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003e87d20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
2 locks held by kworker/1:19/4495:
#0: ffff888065715538 ((wq_completion)xfs-sync/loop4){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90003347d20 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
3 locks held by syz.4.260/4765:
#0: ffff8880583d2460 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff88807334bf00 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#1: ffff88807334bf00 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:302
#2: ffff8880583d2650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1047
3 locks held by syz.4.260/4806:
#0: ffff8880583d2460 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff88807334a100 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#1: ffff88807334a100 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3529 [inline]
#1: ffff88807334a100 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x824/0x2f20 fs/namei.c:3739
#2: ffff8880583d2650 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc5/0x2b0 fs/xfs/xfs_trans.c:1102
1 lock held by syz-executor/4966:
#0: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#0: ffffffff8c9240e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845
2 locks held by syz.2.864/7269:
#0: ffff88801d49a098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:300 [inline]
#0: ffff88801d49a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:356 [inline]
#0: ffff88801d49a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:377 [inline]
#0: ffff88801d49a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_release+0xb3/0x200 drivers/tty/tty_ldisc.c:802
#1: ffff8880754e5098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: __tty_ldisc_lock_nested drivers/tty/tty_ldisc.c:306 [inline]
#1: ffff8880754e5098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:358 [inline]
#1: ffff8880754e5098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:377 [inline]
#1: ffff8880754e5098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_release+0xd7/0x200 drivers/tty/tty_ldisc.c:802
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3735 Comm: kworker/u4:11 Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:unwind_next_frame+0xa22/0x1fa0 arch/x86/kernel/unwind_orc.c:535
Code: 0f b6 04 10 84 c0 0f 85 59 13 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 70 13 00 00 49 0f bf 06 48 01 c3 48 89 1c 24 <48> 8d 5d 01 41 0f b6 04 14 84 c0 0f 85 b3 0e 00 00 49 89 dd 49 c1
RSP: 0018:ffffc9000312f508 EFLAGS: 00000286
RAX: 0000000000000010 RBX: ffffc9000312f6c0 RCX: ffffffff8df6bf9c
RDX: dffffc0000000000 RSI: ffffffff8e5ec1ba RDI: ffffffff8df6bf98
RBP: ffffffff8e5ec1be R08: 0000000000000007 R09: ffffc9000312f670
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1cbd837
R13: ffffffff8e5ec1bb R14: ffffffff8e5ec1ba R15: ffffc9000312f620
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f864fea8ab8 CR3: 00000000736fa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__unwind_start+0x59d/0x720 arch/x86/kernel/unwind_orc.c:704
unwind_start arch/x86/include/asm/unwind.h:60 [inline]
arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513
kasan_kmalloc include/linux/kasan.h:264 [inline]
__kmalloc_node_track_caller+0x195/0x390 mm/slub.c:4963
kmalloc_reserve net/core/skbuff.c:356 [inline]
pskb_expand_head+0x111/0x1130 net/core/skbuff.c:1709
__skb_cow include/linux/skbuff.h:3382 [inline]
skb_cow_head include/linux/skbuff.h:3416 [inline]
batadv_skb_head_push+0x160/0x1f0 net/batman-adv/soft-interface.c:73
batadv_send_skb_packet+0xe2/0x5f0 net/batman-adv/send.c:86
batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:393 [inline]
batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:421 [inline]
batadv_iv_send_outstanding_bat_ogm_packet+0x66f/0x800 net/batman-adv/bat_iv_ogm.c:1701
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287