INFO: task kworker/u4:6:3722 blocked for more than 143 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:6 state:D stack:18168 pid:3722 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:1)
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6638
__mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
jfs_commit_inode+0x20d/0x5a0 fs/jfs/inode.c:102
jfs_write_inode+0x13d/0x210 fs/jfs/inode.c:132
write_inode fs/fs-writeback.c:1440 [inline]
__writeback_single_inode+0x4d6/0x670 fs/fs-writeback.c:1652
writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1870
__writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1941
wb_writeback+0x440/0x7b0 fs/fs-writeback.c:2046
wb_check_start_all fs/fs-writeback.c:2168 [inline]
wb_do_writeback fs/fs-writeback.c:2194 [inline]
wb_workfn+0x827/0xef0 fs/fs-writeback.c:2227
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INFO: task syz-executor.2:8934 blocked for more than 143 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:19264 pid:8934 ppid:3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcccba8b5a9
RSP: 002b:00007fcccadff168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fcccbbabf80 RCX: 00007fcccba8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcccbae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4538dd8f R14: 00007fcccadff300 R15: 0000000000022000
INFO: task syz-executor.2:8937 blocked for more than 144 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25192 pid:8937 ppid:3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
wb_wait_for_completion+0x155/0x280 fs/fs-writeback.c:191
sync_inodes_sb+0x283/0xaa0 fs/fs-writeback.c:2706
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcccba8b5a9
RSP: 002b:00007fcccadde168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fcccbbac050 RCX: 00007fcccba8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcccbae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4538dd8f R14: 00007fcccadde300 R15: 0000000000022000
INFO: task syz-executor.2:8943 blocked for more than 144 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25192 pid:8943 ppid:3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcccba8b5a9
RSP: 002b:00007fcccadbd168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fcccbbac120 RCX: 00007fcccba8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcccbae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4538dd8f R14: 00007fcccadbd300 R15: 0000000000022000
INFO: task syz-executor.2:8952 blocked for more than 144 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25192 pid:8952 ppid:3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcccba8b5a9
RSP: 002b:00007fcccad9c168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fcccbbac1f0 RCX: 00007fcccba8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcccbae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4538dd8f R14: 00007fcccad9c300 R15: 0000000000022000
INFO: task syz-executor.2:8960 blocked for more than 145 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25192 pid:8960 ppid:3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcccba8b5a9
RSP: 002b:00007fcccad7b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fcccbbac2c0 RCX: 00007fcccba8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcccbae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4538dd8f R14: 00007fcccad7b300 R15: 0000000000022000
INFO: task syz-executor.2:8962 blocked for more than 145 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25192 pid:8962 ppid:3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcccba8b5a9
RSP: 002b:00007fcccad5a168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fcccbbac390 RCX: 00007fcccba8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcccbae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4538dd8f R14: 00007fcccad5a300 R15: 0000000000022000
INFO: task syz-executor.2:8970 blocked for more than 146 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25192 pid:8970 ppid:3646 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcccba8b5a9
RSP: 002b:00007fcccad18168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fcccbbac530 RCX: 00007fcccba8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fcccbae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4538dd8f R14: 00007fcccad18300 R15: 0000000000022000
INFO: task syz-executor.1:8941 blocked for more than 146 seconds.
Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:20328 pid:8941 ppid:3645 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write_nested+0x23f/0x280 kernel/locking/rwsem.c:1673
lock_rename+0x182/0x1a0
do_renameat2+0x4a0/0x1370 fs/namei.c:4870
__do_sys_rename fs/namei.c:4975 [inline]
__se_sys_rename fs/namei.c:4973 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:4973
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f569848b5a9
RSP: 002b:00007f56992a1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f56985ac050 RCX: 00007f569848b5a9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040
RBP: 00007f56984e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3537ee8f R14: 00007f56992a1300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cb22630 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cb22e30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8cb22460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3286:
#0: ffff88814b34a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
4 locks held by kworker/u4:6/3722:
#0: ffff8880179d4938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc900052d7d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415
#3: ffff88803766f0c8 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x20d/0x5a0 fs/jfs/inode.c:102
2 locks held by syz-executor.2/8934:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/8937:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/8943:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/8952:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/8960:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/8962:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/8970:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
4 locks held by syz-executor.1/8935:
2 locks held by syz-executor.1/8941:
#0: ffff888022aee460 (sb_writers#27){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff88803766f480 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: lock_rename+0x182/0x1a0
2 locks held by syz-executor.2/9091:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/9093:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/9094:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.5/9107:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.5/9115:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.5/9116:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.5/9118:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.5/9121:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.5/9126:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.5/9129:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.0/9130:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.0/9132:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.0/9133:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.0/9134:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.0/9136:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.0/9138:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/9161:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
2 locks held by syz-executor.2/9162:
#0: ffff888022aee0e0 (&type->s_umount_key#89){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
#1: ffff8881475e47d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2704
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcf5/0xd40 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 46 Comm: kworker/u4:3 Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy12 ieee80211_iface_work
RIP: 0010:unwind_next_frame+0xda8/0x24c0 arch/x86/kernel/unwind_orc.c:546
Code: 00 00 00 00 00 fc ff df 48 8b 44 24 08 48 89 03 8a 44 0d 00 84 c0 4c 8b 6c 24 38 48 8b 6c 24 50 0f 85 9e 13 00 00 41 c6 06 00 10 00 00 00 4c 8b 74 24 20 4c 89 f7 31 f6 e8 84 e4 a0 00 49 b9
RSP: 0018:ffffc90000b76f60 EFLAGS: 00000246
RAX: ffffc90000b77100 RBX: ffffc90000b77078 RCX: dffffc0000000000
RDX: ffffffff8e92f06e RSI: 0000000000000000 RDI: ffffc90000b771a8
RBP: 1ffffffff1d25e0e R08: 0000000000000001 R09: dffffc0000000000
R10: fffff5200016ee14 R11: 1ffff9200016ee12 R12: ffffc90000b77040
R13: ffffffff8e92f072 R14: ffffc90000b77075 R15: 1ffff9200016ee09
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0101a3f30 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0xb2/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x104/0x1e0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x3d/0x60 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:371 [inline]
__kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slab_common.c:955 [inline]
__kmalloc+0xaf/0x1a0 mm/slab_common.c:968
kmalloc include/linux/slab.h:581 [inline]
kzalloc include/linux/slab.h:712 [inline]
ieee802_11_parse_elems_full+0xc4/0x1480 net/mac80211/util.c:1511
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2241 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2248 [inline]
ieee80211_bss_info_update+0x9b6/0x1060 net/mac80211/scan.c:212
ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1907/0x2c00 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1630 [inline]
ieee80211_iface_work+0x773/0xcf0 net/mac80211/iface.c:1684
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306