[syzbot] [kernel?] BUG: workqueue leaked atomic, lock or RCU: kworker/NUM:NUM[NUM]
From: syzbot <hidden>
Date: 2024-10-21 08:36:31
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Hello, syzbot found the following issue on: HEAD commit: 09cf85ef183a Merge branch 'ipv4-namespacify-ipv4-address-h.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=14bc2b27980000 kernel config: https://syzkaller.appspot.com/x/.config?x=97682d9a9859be7a dashboard link: https://syzkaller.appspot.com/bug?extid=21814e89fd126bbfb79c compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f07fbcff269f/disk-09cf85ef.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/27b386159ee2/vmlinux-09cf85ef.xz kernel image: https://storage.googleapis.com/syzbot-assets/0d9909f42c33/bzImage-09cf85ef.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+21814e89fd126bbfb79c@syzkaller.appspotmail.com BUG: workqueue leaked atomic, lock or RCU: kworker/0:4[5280] preempt=0x00000000 lock=0->0 RCU=0->0 workfn=nsim_dev_trap_report_work INFO: lockdep is turned off. CPU: 0 UID: 0 PID: 5280 Comm: kworker/0:4 Not tainted 6.12.0-rc1-syzkaller-00360-g09cf85ef183a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events nsim_dev_trap_report_work Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 process_one_work kernel/workqueue.c:3250 [inline] process_scheduled_works+0x1158/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup