================================================ WARNING: lock held when returning to user space! 6.15.0-syzkaller-10815-gbb1556ec9464 #0 Not tainted ------------------------------------------------ syz.4.1656/12100 is leaving the kernel with locks still held! 1 lock held by syz.4.1656/12100: #0: ffffffff8e5c4d80 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8e5c4d80 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8e5c4d80 (rcu_read_lock){....}-{1:3}, at: netlbl_conn_setattr+0x35/0x610 net/netlabel/netlabel_kapi.c:1140 ------------[ cut here ]------------ Voluntary context switch within RCU read-side critical section! WARNING: CPU: 1 PID: 12100 at kernel/rcu/tree_plugin.h:332 rcu_note_context_switch+0xccc/0x1e00 kernel/rcu/tree_plugin.h:332 Modules linked in: CPU: 1 UID: 0 PID: 12100 Comm: syz.4.1656 Not tainted 6.15.0-syzkaller-10815-gbb1556ec9464 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:rcu_note_context_switch+0xccc/0x1e00 kernel/rcu/tree_plugin.h:332 Code: 24 30 4c 8b 54 24 28 4c 8b 44 24 20 8b 4c 24 08 e9 cc 03 00 00 c6 05 6f 2a ed 0e 01 90 48 c7 c7 20 f2 ae 8b e8 55 f1 d7 ff 90 <0f> 0b 90 90 e9 35 f4 ff ff 38 d0 7f 08 84 c0 0f 85 10 09 00 00 80 RSP: 0000:ffffc90003a9fcc0 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffff8880b853cc40 RCX: ffffc9000d01e000 RDX: 0000000000080000 RSI: ffffffff817ad375 RDI: 0000000000000001 RBP: ffff888030eda440 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888030eda440 R14: ffffffff90a7e544 R15: ffff8880b853bc40 FS: 00007f3d8bc116c0(0000) GS:ffff888124865000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000192030 CR3: 000000005831a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __schedule+0x2f7/0x5de0 kernel/sched/core.c:6686 __schedule_loop kernel/sched/core.c:6859 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:6874 exit_to_user_mode_loop kernel/entry/common.c:102 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] irqentry_exit_to_user_mode+0xcf/0x270 kernel/entry/common.c:184 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0033:0x7f3d8ad8e969 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:00007f3d8bc11038 EFLAGS: 00000246 RAX: ffffffffffffff9f RBX: 00007f3d8afb5fa0 RCX: 00007f3d8ad8e969 RDX: 000000000000006f RSI: 0000000000000084 RDI: 0000000000000003 RBP: 00007f3d8ae10ab1 R08: 0000200000000380 R09: 0000000000000000 R10: 0000200000000340 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3d8afb5fa0 R15: 00007ffc01de6168