================================================
WARNING: lock held when returning to user space!
6.10.0-next-20240719-syzkaller #0 Not tainted
------------------------------------------------
syz.2.3075/13953 is leaving the kernel with locks still held!
1 lock held by syz.2.3075/13953:
 #0: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
 #0: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
 #0: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: ns_ioctl+0x3e0/0x740 fs/nsfs.c:184
------------[ cut here ]------------
Voluntary context switch within RCU read-side critical section!
WARNING: CPU: 0 PID: 13953 at kernel/rcu/tree_plugin.h:330 rcu_note_context_switch+0xcf4/0xff0 kernel/rcu/tree_plugin.h:330
Modules linked in:
CPU: 0 UID: 0 PID: 13953 Comm: syz.2.3075 Not tainted 6.10.0-next-20240719-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:rcu_note_context_switch+0xcf4/0xff0 kernel/rcu/tree_plugin.h:330
Code: 00 ba 02 00 00 00 e8 bb 02 fe ff 4c 8b b4 24 80 00 00 00 eb 91 c6 05 cd 46 1f 0e 01 90 48 c7 c7 00 2f cc 8b e8 8d c4 da ff 90 <0f> 0b 90 90 e9 3b f4 ff ff 90 0f 0b 90 45 84 ed 0f 84 00 f4 ff ff
RSP: 0000:ffffc90011827ba0 EFLAGS: 00010046
RAX: 50667666ff2d7800 RBX: ffff88802da2de44 RCX: 0000000000040000
RDX: ffffc9000cff1000 RSI: 0000000000015afc RDI: 0000000000015afd
RBP: ffffc90011827cf0 R08: ffffffff815592b2 R09: fffffbfff1c39f94
R10: dffffc0000000000 R11: fffffbfff1c39f94 R12: ffff88802da2da00
R13: 0000000000000000 R14: 1ffff92002304f8c R15: dffffc0000000000
FS:  00007f67e02ce6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d71fffc CR3: 0000000072258000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __schedule+0x348/0x4a60 kernel/sched/core.c:6491
 __schedule_loop kernel/sched/core.c:6680 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6695
 exit_to_user_mode_loop kernel/entry/common.c:102 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 irqentry_exit_to_user_mode+0xe7/0x280 kernel/entry/common.c:231
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7f67df575b59
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f67e02ce048 EFLAGS: 00000246
RAX: fffffffffffffffd RBX: 00007f67df705f60 RCX: 00007f67df575b59
RDX: 0000000000000000 RSI: 000000008004b706 RDI: 0000000000000003
RBP: 00007f67df5e4e5d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f67df705f60 R15: 00007ffc87a6efb8
 </TASK>