From: syzbot <syzbot+e0bd4e4815a910c0daa8@xxxxxxxxxxxxxxxxxxxxxxxxx> Date: Tue, 13 Aug 2024 10:42:25 -0700 > Hello, > > syzbot found the following issue on: > > HEAD commit: ee9a43b7cfe2 Merge tag 'net-6.11-rc3' of git://git.kernel... > git tree: net > console output: https://syzkaller.appspot.com/x/log.txt?x=13da25d3980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=e8a2eef9745ade09 > dashboard link: https://syzkaller.appspot.com/bug?extid=e0bd4e4815a910c0daa8 > 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. kstrdup() failed due to fault injection. We may want to change the WARN_ON(1) in these functions to net_warn_ratelimited() as we do so in do_setlink(). * __dev_change_net_namespace * cfg802154_switch_netns * cfg80211_switch_netns() [ 141.438766][ T8054] FAULT_INJECTION: forcing a failure. [ 141.438766][ T8054] name failslab, interval 1, probability 0, space 0, times 0 [ 141.453868][ T8054] CPU: 1 UID: 0 PID: 8054 Comm: syz.0.839 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0 [ 141.464514][ T8054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 141.474602][ T8054] Call Trace: [ 141.477906][ T8054] <TASK> [ 141.480854][ T8054] dump_stack_lvl+0x241/0x360 [ 141.507418][ T8054] should_fail_ex+0x3b0/0x4e0 [ 141.512110][ T8054] should_failslab+0xac/0x100 [ 141.516785][ T8054] __kmalloc_node_track_caller_noprof+0xda/0x440 [ 141.523098][ T8054] ? device_rename+0xb5/0x1b0 [ 141.527767][ T8054] kstrdup+0x3a/0x80 [ 141.531651][ T8054] device_rename+0xb5/0x1b0 [ 141.536142][ T8054] cfg802154_switch_netns+0x1df/0x390 [ 141.541523][ T8054] nl802154_wpan_phy_netns+0x13d/0x210 [ 141.546984][ T8054] genl_rcv_msg+0xb14/0xec0 [...] [ 141.801010][ T8054] </TASK> [ 141.865238][ T8054] ------------[ cut here ]------------ [ 141.871127][ T8054] WARNING: CPU: 1 PID: 8054 at net/ieee802154/core.c:258 cfg802154_switch_netns+0x37f/0x390
