INFO: task syz.7.2281:7393 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.2281      state:D stack:0     pid:7393  tgid:7392  ppid:5416   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5945 [inline]
 __schedule+0x1322/0x1df0 kernel/sched/core.c:7791
 __schedule_loop kernel/sched/core.c:7872 [inline]
 schedule+0xc6/0x240 kernel/sched/core.c:7887
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7944
 rwsem_down_read_slowpath+0x6d1/0x1460 kernel/locking/rwsem.c:1136
 __down_read_common kernel/locking/rwsem.c:1317 [inline]
 __down_read kernel/locking/rwsem.c:1330 [inline]
 down_read+0x8f/0xe0 kernel/locking/rwsem.c:1607
 __super_lock fs/super.c:59 [inline]
 super_lock+0x231/0x300 fs/super.c:121
 super_lock_shared fs/super.c:140 [inline]
 iterate_supers+0x8a/0x560 fs/super.c:934
 quota_sync_all fs/quota/quota.c:69 [inline]
 __do_sys_quotactl fs/quota/quota.c:938 [inline]
 __se_sys_quotactl+0x308/0x7d0 fs/quota/quota.c:917
 __x64_sys_quotactl+0x9f/0xc0 fs/quota/quota.c:917
 x64_sys_call+0x2818/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:180
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd93f98f6c9
RSP: 002b:00007fd9407a7038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007fd93fbe5fa0 RCX: 00007fd93f98f6c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000100
RBP: 00007fd93fa11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd93fbe6038 R14: 00007fd93fbe5fa0 R15: 00007fff92ff9228
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 0b5ffdee5fcd2f7749818d1ff954e9c21353764e
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 nmi_cpu_backtrace+0x2bf/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
 watchdog+0xd8f/0xed0 kernel/hung_task.c:423
 kthread+0x2ca/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 13136 Comm: sed Not tainted syzkaller #0 0b5ffdee5fcd2f7749818d1ff954e9c21353764e
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__sanitizer_cov_trace_pc+0x5/0x70 kernel/kcov.c:210
Code: e8 10 5f 52 00 5b 5d e9 c9 bc 09 04 cc cc cc cc cc cc cc cc cc b8 36 33 46 36 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <48> 89 e5 48 8b 45 08 65 48 8b 0c 25 00 eb 04 00 65 8b 15 3c ec 7e
RSP: 0000:ffffc9000acdf7a0 EFLAGS: 00000297
RAX: ffffffff81bd45c3 RBX: 00000000000000a0 RCX: ffff88812354a600
RDX: 0000000000000000 RSI: 00000000000001d4 RDI: 00000000000000a0
RBP: ffffc9000acdf830 R08: ffffea0004454487 R09: 1ffffd400088a890
R10: dffffc0000000000 R11: fffff9400088a891 R12: 00000000000001d4
R13: ffffc9000acdf968 R14: 1ffff9200159bf2d R15: ffffea0004454480
FS:  00007fe1a8304c80(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1a846d9c0 CR3: 0000000124c26000 CR4: 00000000003526b0
DR0: 000000000000a7d0 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_map_pages+0xd09/0x13b0 mm/filemap.c:3847
 do_fault_around mm/memory.c:5304 [inline]
 do_read_fault mm/memory.c:5344 [inline]
 do_fault mm/memory.c:5489 [inline]
 do_pte_missing+0x1b15/0x4240 mm/memory.c:3995
 handle_pte_fault mm/memory.c:5834 [inline]
 __handle_mm_fault mm/memory.c:5977 [inline]
 handle_mm_fault+0x1166/0x1b90 mm/memory.c:6145
 do_user_addr_fault+0x96c/0x1200 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x59/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fe1a846d9c0
Code: Unable to access opcode bytes at 0x7fe1a846d996.
RSP: 002b:00007ffdee84c2f8 EFLAGS: 00010246
RAX: 00007fe1a846d9c0 RBX: 00007fe1a83f3f18 RCX: 00007fe1a866f5f0
RDX: 00007fe1a83d6580 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdee84c420 R08: 0000000000000000 R09: 0000000000000000
R10: 00007fe1a83d6580 R11: 00007fe1a83cd000 R12: 00007fe1a866f5f0
R13: 00007fe1a83f42d8 R14: 00007fe1a859dd58 R15: 00007fe1a83cd000
 </TASK>
ip6_tunnel: M xmit: Local address not yet configured!