INFO: task syz.6.6336:28258 blocked for more than 143 seconds.
Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.6.6336 state:D stack:23648 pid:28258 tgid:28257 ppid:28089 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
filemap_invalidate_lock include/linux/fs.h:863 [inline]
blkdev_fallocate+0x20e/0x490 block/fops.c:813
vfs_fallocate+0x569/0x6e0 fs/open.c:327
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:356 [inline]
__se_sys_fallocate fs/open.c:354 [inline]
__x64_sys_fallocate+0xbc/0x110 fs/open.c:354
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d2f385d29
RSP: 002b:00007f9d30103038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f9d2f575fa0 RCX: 00007f9d2f385d29
RDX: 0000000000000000 RSI: 0000000000000010 RDI: 000000000000000e
RBP: 00007f9d2f401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000060000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9d2f575fa0 R15: 00007ffdf67eb958
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
2 locks held by getty/5586:
#0: ffff8880314b60a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
2 locks held by kworker/u8:11/6706:
1 lock held by syz-executor/25171:
#0: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#0: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
1 lock held by syz.5.6249/27922:
1 lock held by syz.5.6249/27923:
1 lock held by syz.5.6249/27929:
1 lock held by syz.5.6249/27931:
1 lock held by syz.5.6249/27939:
2 locks held by syz.2.6296/28101:
1 lock held by syz.6.6336/28258:
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: blkdev_fallocate+0x20e/0x490 block/fops.c:813
1 lock held by syz.0.6596/29205:
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.0.6596/29206:
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.0.6596/29209:
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.8.6633/29337:
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888023544e40 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
3 locks held by syz-executor/29463:
#0: ffffffff8f44a300 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8f44a300 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8f44a300 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:555
#1: ffffffff8fca0d08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fca0d08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#1: ffffffff8fca0d08 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xce2/0x2210 net/core/rtnetlink.c:4011
#2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
1 lock held by syz.9.6693/29572:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 27939 Comm: syz.5.6249 Not tainted 6.13.0-rc7-syzkaller-00189-g595523945be0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:xa_track_free lib/xarray.c:60 [inline]
RIP: 0010:xas_init_marks+0x56/0xe0 lib/xarray.c:945
Code: 74 08 4c 89 f7 e8 da 2e 44 f6 49 8b 1e 48 83 c3 40 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 5c 8b 1b 89 de 83 e6 04 31 ff 05 54 e0 f5 31 ff 89 ee e8 fc 53 e0 f5 83 e3 04 74 15 85 ed 75
RSP: 0018:ffffc900033a5d70 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000021 RCX: 0000000000080000
RDX: ffffc9002861b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8bbf2294 R09: 1ffff1101421840d
R10: dffffc0000000000 R11: ffffed101421840e R12: 1ffff92000674bc4
R13: ffffea00026d96c0 R14: ffffc900033a5e20 R15: dffffc0000000000
FS: 00007fc8ac5f26c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6dea4a7d60 CR3: 000000006c9f6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
page_cache_delete mm/filemap.c:141 [inline]
__filemap_remove_folio+0x4f1/0x670 mm/filemap.c:223
__remove_mapping+0x86f/0xad0 mm/vmscan.c:798
shrink_folio_list+0x2caf/0x57e0 mm/vmscan.c:1474
shrink_inactive_list mm/vmscan.c:1967 [inline]
shrink_list mm/vmscan.c:2205 [inline]
shrink_lruvec+0x16db/0x2f30 mm/vmscan.c:5737
shrink_node_memcgs mm/vmscan.c:5939 [inline]
shrink_node+0x12a4/0x2e10 mm/vmscan.c:5980
shrink_zones mm/vmscan.c:6225 [inline]
do_try_to_free_pages+0x69d/0x1b20 mm/vmscan.c:6287
try_to_free_mem_cgroup_pages+0x4b8/0xaf0 mm/vmscan.c:6619
try_charge_memcg+0x8c7/0x1150 mm/memcontrol.c:2238
try_charge mm/memcontrol-v1.h:19 [inline]
charge_memcg+0x9f/0x170 mm/memcontrol.c:4497
__mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:4512
mem_cgroup_charge include/linux/memcontrol.h:646 [inline]
filemap_add_folio+0xb7/0x380 mm/filemap.c:957
page_cache_ra_unbounded+0x32c/0x720 mm/readahead.c:273
do_sync_mmap_readahead+0x499/0x970
filemap_fault+0x8a9/0x1490 mm/filemap.c:3335
__do_fault+0x135/0x390 mm/memory.c:4907
do_read_fault mm/memory.c:5322 [inline]
do_fault mm/memory.c:5456 [inline]
do_pte_missing mm/memory.c:3979 [inline]
handle_pte_fault+0x39eb/0x5ed0 mm/memory.c:5801
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
RIP: 0010:strncpy_from_user+0xc8/0x270 lib/strncpy_from_user.c:130
Code: bf 07 00 00 00 4c 89 f6 e8 b5 23 ad fc 49 83 fe 07 0f 86 8b 00 00 00 4c 89 34 24 49 c7 c5 f8 ff ff ff 45 31 e4 48 8b 44 24 08 <4e> 8b 34 20 48 b8 ff fe fe fe fe fe fe fe 49 8d 2c 06 4c 89 f3 48
RSP: 0018:ffffc900033a7cb0 EFLAGS: 00050246
RAX: 0000000020000000 RBX: 0000000020000000 RCX: ffff888026febc00
RDX: ffffc9002861b000 RSI: 0000000000000fe0 RDI: 0000000000000007
RBP: ffff88804a15e620 R08: ffffffff84f2534b R09: 1ffffffff2030b4e
R10: dffffc0000000000 R11: fffffbfff2030b4f R12: 0000000000000000
R13: fffffffffffffff8 R14: 0000000000000fe0 R15: ffff88804a15e620
getname_flags+0xf1/0x540 fs/namei.c:150
do_sys_openat2+0xd2/0x1d0 fs/open.c:1396
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1428
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc8aef85d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc8ac5f2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc8af176320 RCX: 00007fc8aef85d29
RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007fc8af001b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc8af176320 R15: 00007ffcdbc65948