=============================
WARNING: suspicious RCU usage
syzkaller #0 Not tainted
-----------------------------
kernel/sched/core.c:9218 Illegal context switch in RCU-sched read-side critical section!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
locks held by modprobe/20288: 7, last CPU#1:
#0: ffff888114be6088 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x11d/0x590 mm/mmap_lock.c:310
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault_around mm/memory.c:5957 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_read_fault mm/memory.c:5991 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault mm/memory.c:6134 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_pte_missing mm/memory.c:4700 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: handle_pte_fault mm/memory.c:6558 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __handle_mm_fault+0x27b3/0x3690 mm/memory.c:6707
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: filemap_map_pages+0x1ca/0x1e20 mm/filemap.c:3921
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x2f/0x300 mm/pgtable-generic.c:290
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline]
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x10f/0x320 mm/pgtable-generic.c:404
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_read_lock_sched include/linux/rcupdate.h:947 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: pfn_valid+0xbc/0x4b0 include/linux/mmzone.h:2276
#6: ffffc900001b8c98 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0x11d/0x5f0 kernel/time/timer.c:1745
stack backtrace:
CPU: 1 UID: 0 PID: 20288 Comm: modprobe Not tainted syzkaller #0 PREEMPT(lazy)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
lockdep_rcu_suspicious.cold+0x4f/0xb2 kernel/locking/lockdep.c:6972
__might_resched+0x2d9/0x330 kernel/sched/core.c:9218
__cancel_work_sync kernel/workqueue.c:4561 [inline]
cancel_delayed_work_sync+0xb8/0xf0 kernel/workqueue.c:4642
mmc_free_host+0x19/0x30 drivers/mmc/core/host.c:700
vub300_delete drivers/mmc/host/vub300.c:379 [inline]
kref_put include/linux/kref.h:65 [inline]
vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline]
vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742
call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers+0x757/0xb00 kernel/time/timer.c:2374
__run_timer_base kernel/time/timer.c:2386 [inline]
__run_timer_base kernel/time/timer.c:2378 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2395
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405
handle_softirqs+0x1d9/0x9b0 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x168/0x210 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_read_unlock_sched include/linux/rcupdate.h:969 [inline]
RIP: 0010:pfn_valid+0x3d3/0x4b0 include/linux/mmzone.h:2286
Code: ff e8 f1 1e 90 ff 48 c7 c2 c0 84 bd 87 be c9 03 00 00 48 c7 c7 80 84 bd 87 c6 05 b8 cf e2 08 01 e8 32 7a 6b ff e9 b4 fe ff ff c8 1e 90 ff e8 e3 68 74 ff 31 ff 89 c3 89 c6 e8 c8 18 90 ff 84
RSP: 0000:ffffc90012b8f978 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8224d7d8
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff88811fcc1e40
RBP: ffff88823ff157c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
page_table_check_set+0x25/0x580 mm/page_table_check.c:105
__page_table_check_ptes_set+0x217/0x270 mm/page_table_check.c:223
page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
set_ptes include/linux/pgtable.h:447 [inline]
set_pte_range+0x555/0x640 mm/memory.c:5728
filemap_map_order0_folio mm/filemap.c:3889 [inline]
filemap_map_pages+0x843/0x1e20 mm/filemap.c:3960
do_fault_around mm/memory.c:5958 [inline]
do_read_fault mm/memory.c:5991 [inline]
do_fault mm/memory.c:6134 [inline]
do_pte_missing mm/memory.c:4700 [inline]
handle_pte_fault mm/memory.c:6558 [inline]
__handle_mm_fault+0x285b/0x3690 mm/memory.c:6707
handle_mm_fault+0x363/0xa20 mm/memory.c:6876
do_user_addr_fault+0x5a7/0x11d0 arch/x86/mm/fault.c:1343
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fcd59e8f210
Code: Unable to access opcode bytes at 0x7fcd59e8f1e6.
RSP: 002b:00007ffef3336358 EFLAGS: 00010202
RAX: 000003c0fd1ad4b5 RBX: 00007ffef33363e0 RCX: 00007fcd59e7f508
RDX: 000003c000000000 RSI: 0000000000000000 RDI: 00007fcd59eb4da0
RBP: 00007ffef3336410 R08: 0000ff9ab3cfe508 R09: 00007fcd59eb3f60
R10: 0000000000033260 R11: 0000000000000000 R12: 0000000000000025
R13: 00007fcd59eb4da0 R14: 0000000000000000 R15: 00007fcd59e7f000
BUG: sleeping function called from invalid context at kernel/workqueue.c:4561
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 20288, name: modprobe
preempt_count: 102, expected: 0
RCU nest depth: 3, expected: 0
locks held by modprobe/20288: 7, last CPU#1:
#0: ffff888114be6088 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x11d/0x590 mm/mmap_lock.c:310
#1:
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault_around mm/memory.c:5957 [inline]
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_read_fault mm/memory.c:5991 [inline]
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault mm/memory.c:6134 [inline]
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_pte_missing mm/memory.c:4700 [inline]
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: handle_pte_fault mm/memory.c:6558 [inline]
ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __handle_mm_fault+0x27b3/0x3690 mm/memory.c:6707
#2: ffffffff898e4c20
(rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
(rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
(rcu_read_lock){....}-{1:3}, at: filemap_map_pages+0x1ca/0x1e20 mm/filemap.c:3921
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x2f/0x300 mm/pgtable-generic.c:290
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline]
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x10f/0x320 mm/pgtable-generic.c:404
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_read_lock_sched include/linux/rcupdate.h:947 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: pfn_valid+0xbc/0x4b0 include/linux/mmzone.h:2276
#6: ffffc900001b8c98 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0x11d/0x5f0 kernel/time/timer.c:1745
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 20288 Comm: modprobe Not tainted syzkaller #0 PREEMPT(lazy)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
__might_resched.cold+0x1dc/0x222 kernel/sched/core.c:9256
__cancel_work_sync kernel/workqueue.c:4561 [inline]
cancel_delayed_work_sync+0xb8/0xf0 kernel/workqueue.c:4642
mmc_free_host+0x19/0x30 drivers/mmc/core/host.c:700
vub300_delete drivers/mmc/host/vub300.c:379 [inline]
kref_put include/linux/kref.h:65 [inline]
vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline]
vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742
call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers+0x757/0xb00 kernel/time/timer.c:2374
__run_timer_base kernel/time/timer.c:2386 [inline]
__run_timer_base kernel/time/timer.c:2378 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2395
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405
handle_softirqs+0x1d9/0x9b0 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x168/0x210 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_read_unlock_sched include/linux/rcupdate.h:969 [inline]
RIP: 0010:pfn_valid+0x3d3/0x4b0 include/linux/mmzone.h:2286
Code: ff e8 f1 1e 90 ff 48 c7 c2 c0 84 bd 87 be c9 03 00 00 48 c7 c7 80 84 bd 87 c6 05 b8 cf e2 08 01 e8 32 7a 6b ff e9 b4 fe ff ff c8 1e 90 ff e8 e3 68 74 ff 31 ff 89 c3 89 c6 e8 c8 18 90 ff 84
RSP: 0000:ffffc90012b8f978 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8224d7d8
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff88811fcc1e40
RBP: ffff88823ff157c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
page_table_check_set+0x25/0x580 mm/page_table_check.c:105
__page_table_check_ptes_set+0x217/0x270 mm/page_table_check.c:223
page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
set_ptes include/linux/pgtable.h:447 [inline]
set_pte_range+0x555/0x640 mm/memory.c:5728
filemap_map_order0_folio mm/filemap.c:3889 [inline]
filemap_map_pages+0x843/0x1e20 mm/filemap.c:3960
do_fault_around mm/memory.c:5958 [inline]
do_read_fault mm/memory.c:5991 [inline]
do_fault mm/memory.c:6134 [inline]
do_pte_missing mm/memory.c:4700 [inline]
handle_pte_fault mm/memory.c:6558 [inline]
__handle_mm_fault+0x285b/0x3690 mm/memory.c:6707
handle_mm_fault+0x363/0xa20 mm/memory.c:6876
do_user_addr_fault+0x5a7/0x11d0 arch/x86/mm/fault.c:1343
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fcd59e8f210
Code: Unable to access opcode bytes at 0x7fcd59e8f1e6.
RSP: 002b:00007ffef3336358 EFLAGS: 00010202
RAX: 000003c0fd1ad4b5 RBX: 00007ffef33363e0 RCX: 00007fcd59e7f508
RDX: 000003c000000000 RSI: 0000000000000000 RDI: 00007fcd59eb4da0
RBP: 00007ffef3336410 R08: 0000ff9ab3cfe508 R09: 00007fcd59eb3f60
R10: 0000000000033260 R11: 0000000000000000 R12: 0000000000000025
R13: 00007fcd59eb4da0 R14: 0000000000000000 R15: 00007fcd59e7f000
=============================
WARNING: suspicious RCU usage
syzkaller #0 Tainted: G W
-----------------------------
kernel/rcu/srcutree.c:1464 Illegal synchronize_srcu() in same-type SRCU (or in RCU) read-side critical section!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
locks held by modprobe/20288: 7, last CPU#1:
#0: ffff888114be6088 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x11d/0x590 mm/mmap_lock.c:310
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault_around mm/memory.c:5957 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_read_fault mm/memory.c:5991 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault mm/memory.c:6134 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_pte_missing mm/memory.c:4700 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: handle_pte_fault mm/memory.c:6558 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __handle_mm_fault+0x27b3/0x3690 mm/memory.c:6707
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: filemap_map_pages+0x1ca/0x1e20 mm/filemap.c:3921
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x2f/0x300 mm/pgtable-generic.c:290
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline]
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x10f/0x320 mm/pgtable-generic.c:404
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_read_lock_sched include/linux/rcupdate.h:947 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: pfn_valid+0xbc/0x4b0 include/linux/mmzone.h:2276
#6: ffffc900001b8c98 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0x11d/0x5f0 kernel/time/timer.c:1745
stack backtrace:
CPU: 1 UID: 0 PID: 20288 Comm: modprobe Tainted: G W syzkaller #0 PREEMPT(lazy)
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
lockdep_rcu_suspicious.cold+0x4f/0xb2 kernel/locking/lockdep.c:6972
__synchronize_srcu+0x29d/0x300 kernel/rcu/srcutree.c:1464
wakeup_source_remove drivers/base/power/wakeup.c:201 [inline]
wakeup_source_unregister.part.0+0x12c/0x540 drivers/base/power/wakeup.c:237
wakeup_source_unregister+0x1f/0x30 drivers/base/power/wakeup.c:236
mmc_host_classdev_release+0x42/0x120 drivers/mmc/core/host.c:69
device_release+0xd2/0x270 drivers/base/core.c:2640
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1f7/0x640 lib/kobject.c:737
put_device+0x1f/0x30 drivers/base/core.c:3884
vub300_delete drivers/mmc/host/vub300.c:379 [inline]
kref_put include/linux/kref.h:65 [inline]
vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline]
vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742
call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers+0x757/0xb00 kernel/time/timer.c:2374
__run_timer_base kernel/time/timer.c:2386 [inline]
__run_timer_base kernel/time/timer.c:2378 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2395
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405
handle_softirqs+0x1d9/0x9b0 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x168/0x210 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_read_unlock_sched include/linux/rcupdate.h:969 [inline]
RIP: 0010:pfn_valid+0x3d3/0x4b0 include/linux/mmzone.h:2286
Code: ff e8 f1 1e 90 ff 48 c7 c2 c0 84 bd 87 be c9 03 00 00 48 c7 c7 80 84 bd 87 c6 05 b8 cf e2 08 01 e8 32 7a 6b ff e9 b4 fe ff ff c8 1e 90 ff e8 e3 68 74 ff 31 ff 89 c3 89 c6 e8 c8 18 90 ff 84
RSP: 0000:ffffc90012b8f978 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8224d7d8
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff88811fcc1e40
RBP: ffff88823ff157c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
page_table_check_set+0x25/0x580 mm/page_table_check.c:105
__page_table_check_ptes_set+0x217/0x270 mm/page_table_check.c:223
page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
set_ptes include/linux/pgtable.h:447 [inline]
set_pte_range+0x555/0x640 mm/memory.c:5728
filemap_map_order0_folio mm/filemap.c:3889 [inline]
filemap_map_pages+0x843/0x1e20 mm/filemap.c:3960
do_fault_around mm/memory.c:5958 [inline]
do_read_fault mm/memory.c:5991 [inline]
do_fault mm/memory.c:6134 [inline]
do_pte_missing mm/memory.c:4700 [inline]
handle_pte_fault mm/memory.c:6558 [inline]
__handle_mm_fault+0x285b/0x3690 mm/memory.c:6707
handle_mm_fault+0x363/0xa20 mm/memory.c:6876
do_user_addr_fault+0x5a7/0x11d0 arch/x86/mm/fault.c:1343
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fcd59e8f210
Code: Unable to access opcode bytes at 0x7fcd59e8f1e6.
RSP: 002b:00007ffef3336358 EFLAGS: 00010202
RAX: 000003c0fd1ad4b5 RBX: 00007ffef33363e0 RCX: 00007fcd59e7f508
RDX: 000003c000000000 RSI: 0000000000000000 RDI: 00007fcd59eb4da0
RBP: 00007ffef3336410 R08: 0000ff9ab3cfe508 R09: 00007fcd59eb3f60
R10: 0000000000033260 R11: 0000000000000000 R12: 0000000000000025
R13: 00007fcd59eb4da0 R14: 0000000000000000 R15: 00007fcd59e7f000
BUG: sleeping function called from invalid context at kernel/rcu/srcutree.c:1472
in_atomic
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 20288, name: modprobe
preempt_count: 102, expected: 0
RCU nest depth: 3, expected: 0
locks held by modprobe/20288: 7, last CPU#1:
#0: ffff888114be6088 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x11d/0x590 mm/mmap_lock.c:310
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault_around mm/memory.c:5957 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_read_fault mm/memory.c:5991 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_fault mm/memory.c:6134 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: do_pte_missing mm/memory.c:4700 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: handle_pte_fault mm/memory.c:6558 [inline]
#1: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __handle_mm_fault+0x27b3/0x3690 mm/memory.c:6707
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: filemap_map_pages+0x1ca/0x1e20 mm/filemap.c:3921
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff898e4c20 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x2f/0x300 mm/pgtable-generic.c:290
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:347 [inline]
#4: ffff888113c892b8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x10f/0x320 mm/pgtable-generic.c:404
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: rcu_read_lock_sched include/linux/rcupdate.h:947 [inline]
#5: ffffffff898e4b60 (rcu_read_lock_sched){....}-{1:2}, at: pfn_valid+0xbc/0x4b0 include/linux/mmzone.h:2276
#6: ffffc900001b8c98 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0x11d/0x5f0 kernel/time/timer.c:1745
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 20288 Comm: modprobe Tainted: G W syzkaller #0 PREEMPT(lazy)
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
__might_resched.cold+0x1dc/0x222 kernel/sched/core.c:9256
__synchronize_srcu+0x13c/0x300 kernel/rcu/srcutree.c:1472
wakeup_source_remove drivers/base/power/wakeup.c:201 [inline]
wakeup_source_unregister.part.0+0x12c/0x540 drivers/base/power/wakeup.c:237
wakeup_source_unregister+0x1f/0x30 drivers/base/power/wakeup.c:236
mmc_host_classdev_release+0x42/0x120 drivers/mmc/core/host.c:69
device_release+0xd2/0x270 drivers/base/core.c:2640
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1f7/0x640 lib/kobject.c:737
put_device+0x1f/0x30 drivers/base/core.c:3884
vub300_delete drivers/mmc/host/vub300.c:379 [inline]
kref_put include/linux/kref.h:65 [inline]
vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline]
vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742
call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers+0x757/0xb00 kernel/time/timer.c:2374
__run_timer_base kernel/time/timer.c:2386 [inline]
__run_timer_base kernel/time/timer.c:2378 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2395
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405
handle_softirqs+0x1d9/0x9b0 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x168/0x210 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_read_unlock_sched include/linux/rcupdate.h:969 [inline]
RIP: 0010:pfn_valid+0x3d3/0x4b0 include/linux/mmzone.h:2286
Code: ff e8 f1 1e 90 ff 48 c7 c2 c0 84 bd 87 be c9 03 00 00 48 c7 c7 80 84 bd 87 c6 05 b8 cf e2 08 01 e8 32 7a 6b ff e9 b4 fe ff ff c8 1e 90 ff e8 e3 68 74 ff 31 ff 89 c3 89 c6 e8 c8 18 90 ff 84
RSP: 0000:ffffc90012b8f978 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8224d7d8
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff88811fcc1e40
RBP: ffff88823ff157c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
page_table_check_set+0x25/0x580 mm/page_table_check.c:105
__page_table_check_ptes_set+0x217/0x270 mm/page_table_check.c:223
page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
set_ptes include/linux/pgtable.h:447 [inline]
set_pte_range+0x555/0x640 mm/memory.c:5728
filemap_map_order0_folio mm/filemap.c:3889 [inline]
filemap_map_pages+0x843/0x1e20 mm/filemap.c:3960
do_fault_around mm/memory.c:5958 [inline]
do_read_fault mm/memory.c:5991 [inline]
do_fault mm/memory.c:6134 [inline]
do_pte_missing mm/memory.c:4700 [inline]
handle_pte_fault mm/memory.c:6558 [inline]
__handle_mm_fault+0x285b/0x3690 mm/memory.c:6707
handle_mm_fault+0x363/0xa20 mm/memory.c:6876
do_user_addr_fault+0x5a7/0x11d0 arch/x86/mm/fault.c:1343
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fcd59e8f210
Code: Unable to access opcode bytes at 0x7fcd59e8f1e6.
RSP: 002b:00007ffef3336358 EFLAGS: 00010202
RAX: 000003c0fd1ad4b5 RBX: 00007ffef33363e0 RCX: 00007fcd59e7f508
RDX: 000003c000000000 RSI: 0000000000000000 RDI: 00007fcd59eb4da0
RBP: 00007ffef3336410 R08: 0000ff9ab3cfe508 R09: 00007fcd59eb3f60
R10: 0000000000033260 R11: 0000000000000000 R12: 0000000000000025
R13: 00007fcd59eb4da0 R14: 0000000000000000 R15: 00007fcd59e7f000
ODEBUG: object ffffc900001b8a60 is NOT on stack ffffc90012b88000, but annotated.
------------[ cut here ]------------
1
WARNING: lib/debugobjects.c:672 at debug_object_is_on_stack lib/debugobjects.c:672 [inline], CPU#1: modprobe/20288
WARNING: lib/debugobjects.c:672 at lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705, CPU#1: modprobe/20288
Modules linked in:
CPU: 1 UID: 0 PID: 20288 Comm: modprobe Tainted: G W syzkaller #0 PREEMPT(lazy)
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:672 [inline]
RIP: 0010:lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705
Code: c4 60 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 83 c5 01 89 2d 60 bc 0e 13 4c 89 e6 48 c7 c7 c0 c2 d2 87 e8 61 c3 fa ff 90 <0f> 0b 90 e9 12 3b bb 01 83 c5 01 89 2d 3f bc 0e 13 49 39 c4 73 da
RSP: 0000:ffffc900001b88f0 EFLAGS: 00010082
RAX: 0000000000000050 RBX: ffff8881268f9700 RCX: 0000000000000000
RDX: 0000000000000050 RSI: ffffffff81938669 RDI: fffff5200003710f
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000001 R12: ffffc900001b8a60
R13: ffff88811fcc1e40 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8882684e2000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcd59e8f1e6 CR3: 000000011d94a000 CR4: 00000000003506f0
Call Trace:
lookup_object_or_alloc lib/debugobjects.c:682 [inline]
__debug_object_init+0x2a9/0x3d0 lib/debugobjects.c:798
__synchronize_srcu+0x1c3/0x300 kernel/rcu/srcutree.c:1475
wakeup_source_remove drivers/base/power/wakeup.c:201 [inline]
wakeup_source_unregister.part.0+0x12c/0x540 drivers/base/power/wakeup.c:237
wakeup_source_unregister+0x1f/0x30 drivers/base/power/wakeup.c:236
mmc_host_classdev_release+0x42/0x120 drivers/mmc/core/host.c:69
device_release+0xd2/0x270 drivers/base/core.c:2640
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1f7/0x640 lib/kobject.c:737
put_device+0x1f/0x30 drivers/base/core.c:3884
vub300_delete drivers/mmc/host/vub300.c:379 [inline]
kref_put include/linux/kref.h:65 [inline]
vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline]
vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742
call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers+0x757/0xb00 kernel/time/timer.c:2374
__run_timer_base kernel/time/timer.c:2386 [inline]
__run_timer_base kernel/time/timer.c:2378 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2395
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405
handle_softirqs+0x1d9/0x9b0 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x168/0x210 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_read_unlock_sched include/linux/rcupdate.h:969 [inline]
RIP: 0010:pfn_valid+0x3d3/0x4b0 include/linux/mmzone.h:2286
Code: ff e8 f1 1e 90 ff 48 c7 c2 c0 84 bd 87 be c9 03 00 00 48 c7 c7 80 84 bd 87 c6 05 b8 cf e2 08 01 e8 32 7a 6b ff e9 b4 fe ff ff c8 1e 90 ff e8 e3 68 74 ff 31 ff 89 c3 89 c6 e8 c8 18 90 ff 84
RSP: 0000:ffffc90012b8f978 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8224d7d8
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff88811fcc1e40
RBP: ffff88823ff157c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000000
page_table_check_set+0x25/0x580 mm/page_table_check.c:105
__page_table_check_ptes_set+0x217/0x270 mm/page_table_check.c:223
page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
set_ptes include/linux/pgtable.h:447 [inline]
set_pte_range+0x555/0x640 mm/memory.c:5728
filemap_map_order0_folio mm/filemap.c:3889 [inline]
filemap_map_pages+0x843/0x1e20 mm/filemap.c:3960
do_fault_around mm/memory.c:5958 [inline]
do_read_fault mm/memory.c:5991 [inline]
do_fault mm/memory.c:6134 [inline]
do_pte_missing mm/memory.c:4700 [inline]
handle_pte_fault mm/memory.c:6558 [inline]
__handle_mm_fault+0x285b/0x3690 mm/memory.c:6707
handle_mm_fault+0x363/0xa20 mm/memory.c:6876
do_user_addr_fault+0x5a7/0x11d0 arch/x86/mm/fault.c:1343
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7fcd59e8f210
Code: Unable to access opcode bytes at 0x7fcd59e8f1e6.
RSP: 002b:00007ffef3336358 EFLAGS: 00010202
RAX: 000003c0fd1ad4b5 RBX: 00007ffef33363e0 RCX: 00007fcd59e7f508
RDX: 000003c000000000 RSI: 0000000000000000 RDI: 00007fcd59eb4da0
RBP: 00007ffef3336410 R08: 0000ff9ab3cfe508 R09: 00007fcd59eb3f60
R10: 0000000000033260 R11: 0000000000000000 R12: 0000000000000025
R13: 00007fcd59eb4da0 R14: 0000000000000000 R15: 00007fcd59e7f000
----------------
Code disassembly (best guess):
0: ff ljmp (bad)
1: e8 f1 1e 90 ff call 0xff901ef7
6: 48 c7 c2 c0 84 bd 87 mov $0xffffffff87bd84c0,%rdx
d: be c9 03 00 00 mov $0x3c9,%esi
12: 48 c7 c7 80 84 bd 87 mov $0xffffffff87bd8480,%rdi
19: c6 05 b8 cf e2 08 01 movb $0x1,0x8e2cfb8(%rip) # 0x8e2cfd8
20: e8 32 7a 6b ff call 0xff6b7a57
25: e9 b4 fe ff ff jmp 0xfffffede
* 2a: e8 c8 1e 90 ff call 0xff901ef7 <-- trapping instruction
2f: e8 e3 68 74 ff call 0xff746917
34: 31 ff xor %edi,%edi
36: 89 c3 mov %eax,%ebx
38: 89 c6 mov %eax,%esi
3a: e8 c8 18 90 ff call 0xff901907
3f: 84 .byte 0x84