WARNING: lock held when returning to user space in nsim_pp_hold_write

Status: fixed on 2025/05/07 15:33
Subsystems: net
[Documentation on labels]
Fix commit: b9b8301d369b net: netdevsim: fix nsim_pp_hold_write()
First crash: 617d, last: 612d
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/12/15 14:23 19m edumazet@google.com patch upstream OK log

Sample crash report:
================================================
WARNING: lock held when returning to user space!
6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0 Not tainted
------------------------------------------------
syz-executor197/5860 is leaving the kernel with locks still held!
1 lock held by syz-executor197/5860:
 #0: ffffffff8fabfb08 (rtnl_mutex){+.+.}-{4:4}, at: nsim_pp_hold_write+0x105/0x4d0 drivers/net/netdevsim/netdev.c:623

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/19 20:35 upstream eabcdba3ad40 1d58202c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING: lock held when returning to user space in nsim_pp_hold_write
2024/12/19 16:46 upstream eabcdba3ad40 1d58202c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING: lock held when returning to user space in nsim_pp_hold_write
2024/12/15 08:34 upstream a0e3919a2df2 7cbfbb3a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING: lock held when returning to user space in nsim_pp_hold_write
2024/12/14 23:18 upstream a0e3919a2df2 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING: lock held when returning to user space in nsim_pp_hold_write
* Struck through repros no longer work on HEAD.