On Tue, 04 Jan 2022, kvartet wrote: > Hello, > > When using Syzkaller to fuzz the latest Linux kernel, the following > crash was triggered. Why was this sent to me? > HEAD commit: a7904a538933 Linux 5.16-rc6 > git tree: upstream > console output: https://paste.ubuntu.com/p/b6z4q5NnV6/plain/ > kernel config: https://paste.ubuntu.com/p/FDDNHDxtwz/plain/ > > Sorry, I don't have a reproducer for this crash, hope the symbolized > report can help. > > If you fix this issue, please add the following tag to the commit: > Reported-by: Yiru Xu <xyru1999@xxxxxxxxx> > > > INFO: task syz-executor.5:32436 blocked for more than 143 seconds. > Not tainted 5.16.0-rc6 #9 > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > task:syz-executor.5 state:D stack:24768 pid:32436 ppid: 6788 flags:0x00004000 > Call Trace: > <TASK> > context_switch kernel/sched/core.c:4972 [inline] > __schedule+0xcd9/0x2530 kernel/sched/core.c:6253 > schedule+0xd2/0x260 kernel/sched/core.c:6326 > schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385 > __mutex_lock_common kernel/locking/mutex.c:680 [inline] > __mutex_lock+0xc48/0x1610 kernel/locking/mutex.c:740 > add_one_compat_dev drivers/infiniband/core/device.c:942 [inline] > add_one_compat_dev+0xea/0x7f0 drivers/infiniband/core/device.c:919 > rdma_dev_init_net+0x28b/0x480 drivers/infiniband/core/device.c:1184 > ops_init+0xaf/0x420 net/core/net_namespace.c:140 > setup_net+0x415/0xa40 net/core/net_namespace.c:326 > copy_net_ns+0x2d9/0x660 net/core/net_namespace.c:470 > create_new_namespaces.isra.0+0x3cb/0xae0 kernel/nsproxy.c:110 > copy_namespaces+0x391/0x450 kernel/nsproxy.c:178 > copy_process+0x2d37/0x73e0 kernel/fork.c:2194 > kernel_clone+0xe7/0x10c0 kernel/fork.c:2582 > __do_sys_clone3+0x1c9/0x2e0 kernel/fork.c:2857 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x44/0xae > RIP: 0033:0x7ff4fe91489d > RSP: 002b:00007ff4fd285c28 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 > RAX: ffffffffffffffda RBX: 00007ff4fea33f60 RCX: 00007ff4fe91489d > RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000440 > RBP: 00007ff4fe98100d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007fff3b67e98f R14: 00007ff4fea33f60 R15: 00007ff4fd285dc0 -- Lee Jones [李琼斯] Principal Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
