INFO: task syz-executor.1:5018 blocked for more than 143 seconds.
Not tainted 5.15.183-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25344 pid: 5018 ppid: 4507 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x11b8/0x43b0 kernel/sched/core.c:6376
schedule+0x11b/0x1e0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xc71/0x2390 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
ntfs_readpage+0x17c/0x200 fs/ntfs3/inode.c:725
filemap_read_page+0x17b/0x4c0 mm/filemap.c:2386
filemap_update_page mm/filemap.c:2464 [inline]
filemap_get_pages mm/filemap.c:2574 [inline]
filemap_read+0x13d5/0x2480 mm/filemap.c:2634
call_read_iter include/linux/fs.h:2166 [inline]
generic_file_splice_read+0x3a2/0x590 fs/splice.c:311
do_splice_to fs/splice.c:796 [inline]
splice_direct_to_actor+0x413/0xb50 fs/splice.c:870
do_splice_direct+0x1b9/0x2c0 fs/splice.c:979
do_sendfile+0x5d5/0xec0 fs/read_write.c:1249
__do_sys_sendfile64 fs/read_write.c:1317 [inline]
__se_sys_sendfile64+0x13b/0x190 fs/read_write.c:1303
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9e3bed8da9
RSP: 002b:00007f9e3b2590c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f9e3c006f80 RCX: 00007f9e3bed8da9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f9e3bf2547a R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9e3c006f80 R15: 00007fff95c19e68
INFO: task syz-executor.1:5031 blocked for more than 143 seconds.
Not tainted 5.15.183-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26080 pid: 5031 ppid: 4507 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x11b8/0x43b0 kernel/sched/core.c:6376
schedule+0x11b/0x1e0 kernel/sched/core.c:6459
io_schedule+0x7c/0xd0 kernel/sched/core.c:8484
wait_on_page_bit_common+0x815/0xe00 mm/filemap.c:1356
__lock_page mm/filemap.c:1648 [inline]
lock_page include/linux/pagemap.h:625 [inline]
pagecache_get_page+0x4d4/0xef0 mm/filemap.c:1910
find_or_create_page include/linux/pagemap.h:420 [inline]
ni_readpage_cmpr+0x2c6/0x890 fs/ntfs3/frecord.c:2089
ntfs_readpage+0x189/0x200 fs/ntfs3/inode.c:726
filemap_read_page+0x17b/0x4c0 mm/filemap.c:2386
filemap_update_page mm/filemap.c:2464 [inline]
filemap_get_pages mm/filemap.c:2574 [inline]
filemap_read+0x13d5/0x2480 mm/filemap.c:2634
call_read_iter include/linux/fs.h:2166 [inline]
generic_file_splice_read+0x3a2/0x590 fs/splice.c:311
do_splice_to fs/splice.c:796 [inline]
splice_direct_to_actor+0x413/0xb50 fs/splice.c:870
do_splice_direct+0x1b9/0x2c0 fs/splice.c:979
do_sendfile+0x5d5/0xec0 fs/read_write.c:1249
__do_sys_sendfile64 fs/read_write.c:1317 [inline]
__se_sys_sendfile64+0x13b/0x190 fs/read_write.c:1303
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9e3bed8da9
RSP: 002b:00007f9e3b2380c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f9e3c007050 RCX: 00007f9e3bed8da9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007f9e3bf2547a R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f9e3c007050 R15: 00007fff95c19e68
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8c11bea0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3933:
#0: ffff88802bc5f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900026362e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30 drivers/tty/n_tty.c:2158
3 locks held by syz-executor.1/5018:
#0: ffff88802a69c460 (sb_writers#13){.+.+}-{0:0}, at: do_sendfile+0x5b2/0xec0 fs/read_write.c:1248
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_update_page mm/filemap.c:2435 [inline]
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_get_pages mm/filemap.c:2574 [inline]
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_read+0x8b6/0x2480 mm/filemap.c:2634
#2: ffff888066620100 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
#2: ffff888066620100 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_readpage+0x17c/0x200 fs/ntfs3/inode.c:725
3 locks held by syz-executor.1/5031:
#0: ffff88802a69c460 (sb_writers#13){.+.+}-{0:0}, at: do_sendfile+0x5b2/0xec0 fs/read_write.c:1248
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_update_page mm/filemap.c:2435 [inline]
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_get_pages mm/filemap.c:2574 [inline]
#1: ffff888066620540 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_read+0x8b6/0x2480 mm/filemap.c:2634
#2: ffff888066620100 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
#2: ffff888066620100 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_readpage+0x17c/0x200 fs/ntfs3/inode.c:725
2 locks held by syz-executor.2/5904:
#0: ffff88807b0b2460 (sb_writers#13){.+.+}-{0:0}, at: do_sendfile+0x5b2/0xec0 fs/read_write.c:1248
#1: ffff888070a32fe0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#1: ffff888070a32fe0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: ntfs_file_write_iter+0x25a/0x590 fs/ntfs3/file.c:1126
3 locks held by syz-executor.2/5913:
#0: ffff88807b0b2460 (sb_writers#13){.+.+}-{0:0}, at: do_sendfile+0x5b2/0xec0 fs/read_write.c:1248
#1: ffff888070a33180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
#1: ffff888070a33180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_update_page mm/filemap.c:2435 [inline]
#1: ffff888070a33180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_get_pages mm/filemap.c:2574 [inline]
#1: ffff888070a33180 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_read+0x8b6/0x2480 mm/filemap.c:2634
#2: ffff888070a32d40 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
#2: ffff888070a32d40 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_readpage+0x17c/0x200 fs/ntfs3/inode.c:725
2 locks held by syz-executor.3/6636:
#0: ffff888057d24460 (sb_writers#13){.+.+}-{0:0}, at: do_sendfile+0x5b2/0xec0 fs/read_write.c:1248
#1: ffff8880664199c0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#1: ffff8880664199c0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: ntfs_file_write_iter+0x25a/0x590 fs/ntfs3/file.c:1126
3 locks held by syz-executor.3/6645:
#0: ffff888057d24460 (sb_writers#13){.+.+}-{0:0}, at: do_sendfile+0x5b2/0xec0 fs/read_write.c:1248
#1: ffff888066419b60 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:842 [inline]
#1: ffff888066419b60 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_update_page mm/filemap.c:2435 [inline]
#1: ffff888066419b60 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_get_pages mm/filemap.c:2574 [inline]
#1: ffff888066419b60 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_read+0x8b6/0x2480 mm/filemap.c:2634
#2: ffff888066419720 (&ni->ni_lock/5){+.+.}-{3:3}, at: ni_lock fs/ntfs3/ntfs_fs.h:1100 [inline]
#2: ffff888066419720 (&ni->ni_lock/5){+.+.}-{3:3}, at: ntfs_readpage+0x17c/0x200 fs/ntfs3/inode.c:725
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.183-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
nmi_cpu_backtrace+0x397/0x3d0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xe0f/0xe50 kernel/hung_task.c:369
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 150 Comm: kworker/u4:2 Not tainted 5.15.183-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: bat_events batadv_nc_worker
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4700 [inline]
RIP: 0010:__lock_acquire+0x68f/0x7c60 kernel/locking/lockdep.c:4962
Code: 00 00 84 db 41 0f b6 c6 0f b6 cb 0f 44 c8 89 8c 24 c8 00 00 00 48 8b 84 24 88 00 00 00 42 0f b6 04 00 84 c0 0f 85 69 63 00 00 <45> 8b bd e8 0a 00 00 41 8d 47 ff 83 f8 ff 41 bc ff ff ff ff 44 0f
RSP: 0018:ffffc9000183f820 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8ff990c0
RBP: ffffc9000183fa70 R08: dffffc0000000000 R09: fffffbfff1ff3219
R10: fffffbfff1ff3219 R11: 1ffffffff1ff3218 R12: ffff88801baaa920
R13: ffff88801baa9dc0 R14: 0000000000000002 R15: ffff88801baaa900
FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2d541a05a0 CR3: 000000002a984000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:312
rcu_read_lock include/linux/rcupdate.h:739 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0xc9/0x5c0 net/batman-adv/network-coding.c:723
process_one_work+0x863/0x1000 kernel/workqueue.c:2310
worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287