------------[ cut here ]------------ WARNING: kernel/sched/core.c:10569 at sched_mm_cid_fork+0x66/0xc30 kernel/sched/core.c:10569, CPU#1: kworker/u8:19/8682 Modules linked in: CPU: 1 UID: 0 PID: 8682 Comm: kworker/u8:19 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:sched_mm_cid_fork+0x66/0xc30 kernel/sched/core.c:10569 Code: 4c 8b 3b 4d 85 ff 74 21 49 8d 9d a4 15 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 13 0a 00 00 31 c0 3b 03 70 04 90 <0f> 0b 90 49 8d 9f 40 01 00 00 49 8d bf 00 02 00 00 48 89 7c 24 20 RSP: 0018:ffffc9000157fc18 EFLAGS: 00010246 RAX: 1ffff11004ac8843 RBX: ffff888025644218 RCX: ffff888025643c80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888025643c80 RBP: ffffc9000157fda8 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1ade9b9 R12: ffff888025643c80 R13: ffff888025643c80 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126def000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000006b324000 CR4: 00000000003526f0 Call Trace: bprm_execve+0xd8e/0x1400 fs/exec.c:1776 kernel_execve+0x8f0/0x9f0 fs/exec.c:1919 call_usermodehelper_exec_async+0x213/0x360 kernel/umh.c:109 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246