rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2645 jiffies s: 18709 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 17258 Comm: syz.3.5350 Not tainted 6.11.0-rc5-syzkaller-00015-g3e9bff3bbe13 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__kasan_check_read+0x4/0x20 mm/kasan/shadow.c:31
Code: e8 91 9f b3 09 31 db eb d0 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <89> f6 48 8b 0c 24 31 d2 e9 6f e6 ff ff 66 2e 0f 1f 84 00 00 00 00
RSP: 0018:ffffc90000a18a28 EFLAGS: 00000047
RAX: 0000000000000000 RBX: 0000000000000021 RCX: ffffffff94ced903
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff934f5840
RBP: ffff88802334c6e0 R08: ffffffff934f5847 R09: 1ffffffff269eb08
R10: dffffc0000000000 R11: fffffbfff269eb09 R12: ffff88802334bc00
R13: ffff88802334c6d8 R14: 0000000000000000 R15: ffff88802334c700
FS:  00007f552c7486c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020031030 CR3: 0000000077132000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 __lock_acquire+0xc8b/0x2040 kernel/locking/lockdep.c:5112
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
 rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
 rcu_read_lock include/linux/rcupdate.h:838 [inline]
 advance_sched+0xa1e/0xca0 net/sched/sch_taprio.c:985
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__might_resched+0xc/0x780 kernel/sched/core.c:8418
Code: e8 b9 07 93 00 e9 63 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 48 83 e4 e0 48 81 ec e0 00 00 00 41 89 d4 41 89 f6
RSP: 0018:ffffc90003e0f8e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88802334bc00 RCX: 0000000000040000
RDX: 0000000000000000 RSI: 000000000000009a RDI: ffffffff8c3f4b40
RBP: ffffc90003e0f8f8 R08: ffffffff81df3d21 R09: 0000000000000000
R10: ffffc90003e0f9c0 R11: fffff520007c1f3f R12: dffffc0000000000
R13: dffffc0000000000 R14: 000000000000009a R15: ffffffff8c3f4b40
 __might_fault+0x72/0x120 mm/memory.c:6384
 _inline_copy_from_user include/linux/uaccess.h:154 [inline]
 _copy_from_user+0x2a/0xe0 lib/usercopy.c:18
 copy_from_user include/linux/uaccess.h:196 [inline]
 copy_msghdr_from_user+0xae/0x680 net/socket.c:2527
 recvmsg_copy_msghdr net/socket.c:2782 [inline]
 ___sys_recvmsg net/socket.c:2854 [inline]
 do_recvmmsg+0x40f/0xae0 net/socket.c:2952
 __sys_recvmmsg net/socket.c:3031 [inline]
 __do_sys_recvmmsg net/socket.c:3054 [inline]
 __se_sys_recvmmsg net/socket.c:3047 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3047
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f552b979e79
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:00007f552c748038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f552bb15f80 RCX: 00007f552b979e79
RDX: 03ffffffffffff67 RSI: 0000000020002440 RDI: 0000000000000004
RBP: 00007f552b9e793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f552bb15f80 R15: 00007ffc4c12a468
 </TASK>