INFO: task syz-executor.3:4834 blocked for more than 143 seconds.
Not tainted 5.15.186-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27872 pid: 4834 ppid: 4441 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
rwsem_down_write_slowpath+0xc46/0x11f0 kernel/locking/rwsem.c:1165
filemap_invalidate_lock include/linux/fs.h:832 [inline]
blkdev_fallocate+0x263/0x4d0 block/fops.c:603
vfs_fallocate+0x587/0x6f0 fs/open.c:308
ksys_fallocate fs/open.c:331 [inline]
__do_sys_fallocate fs/open.c:339 [inline]
__se_sys_fallocate fs/open.c:337 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:337
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: 0033:0x7ff714cb0959
RSP: 002b:00007ff7140320c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007ff714dcff80 RCX: 00007ff714cb0959
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 00007ff714d0cc88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000010000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ff714dcff80 R15: 00007ffdceaa9188
INFO: task syz-executor.5:4839 blocked for more than 143 seconds.
Not tainted 5.15.186-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27872 pid: 4839 ppid: 4448 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
rwsem_down_write_slowpath+0xc46/0x11f0 kernel/locking/rwsem.c:1165
filemap_invalidate_lock include/linux/fs.h:832 [inline]
blkdev_fallocate+0x263/0x4d0 block/fops.c:603
vfs_fallocate+0x587/0x6f0 fs/open.c:308
ksys_fallocate fs/open.c:331 [inline]
__do_sys_fallocate fs/open.c:339 [inline]
__se_sys_fallocate fs/open.c:337 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:337
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: 0033:0x7f9a6b1b2959
RSP: 002b:00007f9a6a5340c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f9a6b2d1f80 RCX: 00007f9a6b1b2959
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 00007f9a6b20ec88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000010000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9a6b2d1f80 R15: 00007ffd9b955618
INFO: task syz-executor.0:4849 blocked for more than 144 seconds.
Not tainted 5.15.186-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27872 pid: 4849 ppid: 4452 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
rwsem_down_write_slowpath+0xc46/0x11f0 kernel/locking/rwsem.c:1165
filemap_invalidate_lock include/linux/fs.h:832 [inline]
blkdev_fallocate+0x263/0x4d0 block/fops.c:603
vfs_fallocate+0x587/0x6f0 fs/open.c:308
ksys_fallocate fs/open.c:331 [inline]
__do_sys_fallocate fs/open.c:339 [inline]
__se_sys_fallocate fs/open.c:337 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:337
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: 0033:0x7f7b2c542959
RSP: 002b:00007f7b2b8c40c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f7b2c661f80 RCX: 00007f7b2c542959
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 00007f7b2c59ec88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000010000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7b2c661f80 R15: 00007ffcf17e7298
INFO: task syz-executor.4:4848 blocked for more than 144 seconds.
Not tainted 5.15.186-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27872 pid: 4848 ppid: 4437 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
rwsem_down_write_slowpath+0xc46/0x11f0 kernel/locking/rwsem.c:1165
filemap_invalidate_lock include/linux/fs.h:832 [inline]
blkdev_fallocate+0x263/0x4d0 block/fops.c:603
vfs_fallocate+0x587/0x6f0 fs/open.c:308
ksys_fallocate fs/open.c:331 [inline]
__do_sys_fallocate fs/open.c:339 [inline]
__se_sys_fallocate fs/open.c:337 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:337
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: 0033:0x7fa086aca959
RSP: 002b:00007fa085e4c0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fa086be9f80 RCX: 00007fa086aca959
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 00007fa086b26c88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000010000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa086be9f80 R15: 00007fff796a5f18
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8c11bfa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:2/150:
2 locks held by getty/3939:
#0: ffff88802b9ca098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900025d62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5ba/0x1a30 drivers/tty/n_tty.c:2158
1 lock held by syz-executor.1/4831:
1 lock held by syz-executor.3/4834:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.5/4839:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.0/4849:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.4/4848:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.2/5028:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.1/5056:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.3/5097:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.5/5105:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.0/5108:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.4/5110:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.2/5137:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.1/5158:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.3/5193:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.0/5251:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.4/5255:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
1 lock held by syz-executor.5/5257:
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline]
#0: ffff88801e961538 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x263/0x4d0 block/fops.c:603
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.186-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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4843 Comm: kworker/u4:6 Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: phy9 ieee80211_iface_work
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline]
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:52 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:178 [inline]
RIP: 0010:unwind_next_frame+0x105e/0x1d90 arch/x86/kernel/unwind_orc.c:448
Code: c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 4d 8d 74 45 00 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 27 49 63 06 4c 01 f0 49 8d 4e 04 48 39 e8 4c 0f 46 e9 49
RSP: 0018:ffffc90002eef5e8 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffc90002eef6a8 RCX: dffffc0000000000
RDX: ffffffff8d7e1918 RSI: ffffffff8dece70a RDI: ffffffff8134690c
RBP: ffffffff81bd372e R08: 000000000000000b R09: 0000000000000001
R10: fffff520005ddee1 R11: 1ffff920005ddedf R12: ffffffff8d7e1928
R13: ffffffff8d7e1928 R14: ffffffff8d7e1928 R15: ffffffff8d7e1924
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555918dc938 CR3: 0000000070cd6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0xea/0x170 mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kfree+0xef/0x2a0 mm/slub.c:4559
skb_free_head net/core/skbuff.c:655 [inline]
skb_release_data+0x6fe/0x850 net/core/skbuff.c:677
skb_release_all net/core/skbuff.c:742 [inline]
__kfree_skb net/core/skbuff.c:756 [inline]
kfree_skb_reason+0xaf/0x110 net/core/skbuff.c:776
kfree_skb include/linux/skbuff.h:1118 [inline]
ieee80211_iface_work+0x798/0xc60 net/mac80211/iface.c:1515
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