INFO: task syz.1.178:6934 blocked for more than 143 seconds.
Not tainted 6.11.0-syzkaller-08068-g1ec6d097897a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.178 state:D stack:26416 pid:6934 tgid:6872 ppid:6539 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1843/0x4b00 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:815 [inline]
do_truncate+0x20c/0x310 fs/open.c:63
vfs_truncate+0x2e1/0x3b0 fs/open.c:111
do_sys_truncate+0xdb/0x190 fs/open.c:134
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: 0033:0x7f013157def9
RSP: 002b:00007f01322d9038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f0131736058 RCX: 00007f013157def9
RDX: 0000000000000000 RSI: 0000000000000018 RDI: 0000000020000440
RBP: 00007f01315f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0131736058 R15: 00007ffd1f8db708
INFO: task syz.1.178:6938 blocked for more than 144 seconds.
Not tainted 6.11.0-syzkaller-08068-g1ec6d097897a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.178 state:D stack:26424 pid:6938 tgid:6872 ppid:6539 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1843/0x4b00 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:815 [inline]
process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572
security_file_post_open+0xb9/0x280 security/security.c:3127
do_open fs/namei.c:3776 [inline]
path_openat+0x2ccd/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
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: 0033:0x7f013157def9
RSP: 002b:00007f01322b8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0131736130 RCX: 00007f013157def9
RDX: 0000000000000042 RSI: 00000000200002c0 RDI: ffffffffffffff9c
RBP: 00007f01315f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0131736130 R15: 00007ffd1f8db708
INFO: task syz.1.178:6943 blocked for more than 145 seconds.
Not tainted 6.11.0-syzkaller-08068-g1ec6d097897a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.178 state:D stack:25360 pid:6943 tgid:6872 ppid:6539 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1843/0x4b00 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:815 [inline]
process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572
security_file_post_open+0xb9/0x280 security/security.c:3127
do_open fs/namei.c:3776 [inline]
path_openat+0x2ccd/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
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: 0033:0x7f013157def9
RSP: 002b:00007f0130fff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f01317362e0 RCX: 00007f013157def9
RDX: 0000000000103042 RSI: 0000000020000100 RDI: ffffffffffffff9c
RBP: 00007f01315f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f01317362e0 R15: 00007ffd1f8db708
INFO: task syz.1.178:6945 blocked for more than 145 seconds.
Not tainted 6.11.0-syzkaller-08068-g1ec6d097897a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.178 state:D stack:26864 pid:6945 tgid:6872 ppid:6539 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5264 [inline]
__schedule+0x1843/0x4b00 kernel/sched/core.c:6607
__schedule_loop kernel/sched/core.c:6684 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6699
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6756
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:815 [inline]
process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572
security_file_post_open+0xb9/0x280 security/security.c:3127
do_open fs/namei.c:3776 [inline]
path_openat+0x2ccd/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
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: 0033:0x7f013157def9
RSP: 002b:00007f0130fde038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f01317363b8 RCX: 00007f013157def9
RDX: 0000000000143042 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007f01315f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f01317363b8 R15: 00007ffd1f8db708
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ee0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ee0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ee0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6701
3 locks held by kworker/u8:4/62:
#0: ffff88814ba15948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88814ba15948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc900015d7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900015d7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcb9048 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4196
1 lock held by dhcpcd/4884:
2 locks held by getty/4978:
#0: ffff888032b900a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
5 locks held by syz.1.178/6875:
#0: ffff88807ef80420 (sb_writers#33){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#1: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: do_truncate+0x20c/0x310 fs/open.c:63
#2: ffff88804c780a18 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x16c/0x2c0 fs/bcachefs/io_misc.c:290
#3: ffff88804c7842c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:151 [inline]
#3: ffff88804c7842c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:250 [inline]
#3: ffff88804c7842c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7de/0xd20 fs/bcachefs/btree_iter.c:3200
#4: ffff88804c7a6690 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x682/0x14e0 fs/bcachefs/btree_update_interior.c:1197
2 locks held by syz.1.178/6934:
#0: ffff88807ef80420 (sb_writers#33){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#1: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: do_truncate+0x20c/0x310 fs/open.c:63
1 lock held by syz.1.178/6938:
#0: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
1 lock held by syz.1.178/6943:
#0: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
1 lock held by syz.1.178/6945:
#0: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88807fb908a8 (&sb->s_type->i_mutex_key#39){+.+.}-{3:3}, at: process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
2 locks held by syz-executor/8596:
#0: ffffffff8fcb9048 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcb9048 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6643
#1: ffffffff8e93d478 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#1: ffffffff8e93d478 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
1 lock held by syz-executor/8686:
#0: ffffffff8fcb9048 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcb9048 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6643
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-syzkaller-08068-g1ec6d097897a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
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:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
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: 1112 Comm: kworker/u8:6 Not tainted 6.11.0-syzkaller-08068-g1ec6d097897a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_release kernel/locking/lockdep.c:5527 [inline]
RIP: 0010:lock_release+0x371/0xa30 kernel/locking/lockdep.c:5843
Code: 20 48 81 c3 d0 0a 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 14 48 89 df 4d 89 fd 49 89 d7 e8 15 10 8a 00 4c 89 fa 4d 89 ef <4c> 89 33 44 39 e2 0f 84 4e 02 00 00 ff c2 48 8b 7c 24 20 48 8b 74
RSP: 0018:ffffc90004007a20 EFLAGS: 00000046
RAX: 1ffff11004e2ec9a RBX: ffff8880271764d0 RCX: ffffc90004007a03
RDX: 0000000000000002 RSI: ffff8880271764d8 RDI: ffff888027176530
RBP: ffffc90004007b48 R08: ffffffff901b4def R09: 1ffffffff20369bd
R10: dffffc0000000000 R11: fffffbfff20369be R12: 0000000000000002
R13: 0000000000020022 R14: 787ecb18009b4bcb R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2e67a08108 CR3: 000000000e734000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x28b/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
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