------------[ cut here ]------------
WARNING: kernel/sched/sched.h:1549 at lockdep_assert_rq_held kernel/sched/sched.h:1549 [inline], CPU#0: syz.5.2662/19165
WARNING: kernel/sched/sched.h:1549 at lockdep_assert_rq_held kernel/sched/sched.h:1547 [inline], CPU#0: syz.5.2662/19165
WARNING: kernel/sched/sched.h:1549 at update_rq_clock+0x34a/0xc70 kernel/sched/core.c:837, CPU#0: syz.5.2662/19165
Modules linked in:
CPU: 0 UID: 0 PID: 19165 Comm: syz.5.2662 Tainted: G     U       L      syzkaller #0 PREEMPT(full) 
Tainted: [U]=USER, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1549 [inline]
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1547 [inline]
RIP: 0010:update_rq_clock+0x34a/0xc70 kernel/sched/core.c:837
Code: ab 48 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc a8 04 0f 84 9c fd ff ff 90 0f 0b 90 e9 93 fd ff ff 90 <0f> 0b 90 e9 4f fd ff ff 48 8d bb 18 0e 00 00 48 b8 00 00 00 00 00
RSP: 0000:ffffc9000bd7f648 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880b853adc0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8daa5ccc RDI: ffffffff8bf2b780
RBP: 0000000000000001 R08: ffff8880b843b8c8 R09: fffffbfff211203a
R10: ffffffff908901d7 R11: 0000000000000001 R12: ffffffff90893254
R13: ffffffff8dd66560 R14: ffff88801dab3d00 R15: ffff8880b853adc0
FS:  000055557b027500(0000) GS:ffff8881248f9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30bd1ff8 CR3: 000000006ef86000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 pick_next_task kernel/sched/core.c:6088 [inline]
 __schedule+0x212d/0x6150 kernel/sched/core.c:6805
 preempt_schedule_notrace+0x62/0xe0 kernel/sched/core.c:7140
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 rcu_is_watching+0x8e/0xc0 kernel/rcu/tree.c:752
 trace_kmem_cache_free include/trace/events/kmem.h:117 [inline]
 kmem_cache_free+0x22e/0x770 mm/slub.c:6780
 jbd2_free_handle include/linux/jbd2.h:1595 [inline]
 jbd2_journal_stop+0x77b/0xe20 fs/jbd2/transaction.c:1970
 __ext4_journal_stop+0xdd/0x210 fs/ext4/ext4_jbd2.c:136
 ext4_dirty_inode+0xed/0x130 fs/ext4/inode.c:6503
 __mark_inode_dirty+0x1f7/0x1670 fs/fs-writeback.c:2587
 generic_update_time+0xcf/0xf0 fs/inode.c:2158
 inode_update_time fs/inode.c:2171 [inline]
 file_update_time_flags+0x410/0x520 fs/inode.c:2398
 ext4_page_mkwrite+0x33d/0x1880 fs/ext4/inode.c:6668
 do_page_mkwrite+0x174/0x380 mm/memory.c:3528
 do_shared_fault mm/memory.c:5831 [inline]
 do_fault+0x3fc/0x1ad0 mm/memory.c:5893
 do_pte_missing mm/memory.c:4401 [inline]
 handle_pte_fault mm/memory.c:6273 [inline]
 __handle_mm_fault+0x1919/0x2bb0 mm/memory.c:6411
 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6580
 do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fae70c6f922
Code: 0f 1f 84 00 00 00 00 00 be 08 00 00 00 48 89 df e8 93 95 fe ff 48 8b 53 38 48 8d 42 f8 48 89 43 38 8b 43 28 83 c0 08 89 43 28 <4c> 89 62 f8 41 8d 56 01 41 39 ee 0f 83 8d 00 00 00 41 89 d6 48 8b
RSP: 002b:00007ffd59edd530 EFLAGS: 00010202
RAX: 0000000000052008 RBX: 00007fae71b15720 RCX: 0000000000000000
RDX: 0000001b30bd2000 RSI: 0000000000000008 RDI: 00007fae71b15720
RBP: 00000000000001d9 R08: 00007fae707ff0c0 R09: 00007fae70fd2000
R10: 00007fae707ff008 R11: 0000000000000002 R12: ffffffff819d4de1
R13: 00007fae70fe6038 R14: 0000000000000175 R15: fffffffffffae000
 </TASK>