fbnic-err: bad TWQ descriptor ordering, previous: 0 current 0 [ 634.760935][ T2875] ================================================================== [ 634.761239][ T2875] BUG: KASAN: wild-memory-access in _copy_to_iter+0x1c7/0x1260 [ 634.761508][ T2875] Read of size 982 at addr 0005088000000000 by task ncdevmem/2875 [ 634.761760][ T2875] [ 634.761850][ T2875] CPU: 3 UID: 0 PID: 2875 Comm: ncdevmem Not tainted 6.17.0-rc4-virtme #1 PREEMPT(full) [ 634.761855][ T2875] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 634.761857][ T2875] Call Trace: [ 634.761860][ T2875] [ 634.761861][ T2875] dump_stack_lvl+0x82/0xc0 [ 634.761869][ T2875] ? _copy_to_iter+0x1c7/0x1260 [ 634.761871][ T2875] kasan_report+0xca/0x100 [ 634.761878][ T2875] ? _copy_to_iter+0x1c7/0x1260 [ 634.761883][ T2875] kasan_check_range+0x39/0x1b0 [ 634.761887][ T2875] _copy_to_iter+0x1c7/0x1260 [ 634.761891][ T2875] ? find_held_lock+0x2b/0x80 [ 634.761897][ T2875] ? _copy_from_iter_flushcache+0x1470/0x1470 [ 634.761901][ T2875] ? mark_held_locks+0x49/0x70 [ 634.761905][ T2875] ? finish_task_switch.isra.0+0x245/0x960 [ 634.761910][ T2875] ? finish_task_switch.isra.0+0x2a3/0x960 [ 634.761915][ T2875] __skb_datagram_iter+0x439/0x770 [ 634.761920][ T2875] ? skb_free_datagram+0x20/0x20 [ 634.761924][ T2875] ? validate_chain+0x15e/0x4d0 [ 634.761929][ T2875] skb_copy_datagram_iter+0x40/0x50 [ 634.761933][ T2875] tcp_recvmsg_locked+0x1318/0x20d0 [ 634.761941][ T2875] ? do_raw_spin_lock+0x130/0x270 [ 634.761944][ T2875] ? tcp_update_recv_tstamps+0x1d0/0x1d0 [ 634.761949][ T2875] ? __local_bh_enable_ip+0xa9/0x120 [ 634.761954][ T2875] tcp_recvmsg+0xec/0x4f0 [ 634.761956][ T2875] ? filemap_map_pages+0x95d/0xf90 [ 634.761960][ T2875] ? tcp_recv_timestamp+0x5e0/0x5e0 [ 634.761964][ T2875] ? rcu_read_lock_any_held+0x3f/0xa0 [ 634.761968][ T2875] ? validate_chain+0x15e/0x4d0 [ 634.761974][ T2875] inet6_recvmsg+0xf7/0x4e0 [ 634.761978][ T2875] ? inet6_sk_rebuild_header+0x6f0/0x6f0 [ 634.761983][ T2875] ____sys_recvmsg+0x21c/0x650 [ 634.761988][ T2875] ? kernel_sendmsg+0x30/0x30 [ 634.761990][ T2875] ? _copy_from_user+0x53/0x90 [ 634.761995][ T2875] ? copy_msghdr_from_user+0xba/0x110 [ 634.761998][ T2875] ? __copy_msghdr+0x3c0/0x3c0 [ 634.762004][ T2875] ___sys_recvmsg+0xce/0x140 [ 634.762008][ T2875] ? ___sys_sendmsg+0x170/0x170 [ 634.762011][ T2875] ? __handle_mm_fault+0x3fc/0x5d0 [ 634.762015][ T2875] ? __pmd_alloc+0x7e0/0x7e0 [ 634.762022][ T2875] ? lock_vma_under_rcu+0x18a/0x3d0 [ 634.762028][ T2875] __sys_recvmsg+0x108/0x1a0 [ 634.762031][ T2875] ? __sys_recvmsg_sock+0x20/0x20 [ 634.762034][ T2875] ? exc_page_fault+0x5d/0xb0 [ 634.762041][ T2875] ? do_user_addr_fault+0x955/0xe00 [ 634.762047][ T2875] ? rcu_is_watching+0x12/0xb0 [ 634.762052][ T2875] do_syscall_64+0xc1/0x370 [ 634.762057][ T2875] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 634.762060][ T2875] RIP: 0033:0x7fc9254e907d [ 634.762063][ T2875] Code: eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 41 54 48 83 ec 10 64 8b 04 25 18 00 00 00 85 c0 75 22 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5b 4c 63 e0 48 83 c4 10 4c 89 e0 41 5c c3 66 [ 634.762066][ T2875] RSP: 002b:00007ffcabbecf10 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 634.762070][ T2875] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fc9254e907d [ 634.762072][ T2875] RDX: 0000000002000000 RSI: 00007ffcabbecf40 RDI: 0000000000000008 [ 634.762074][ T2875] RBP: 00007ffcabcc89f0 R08: 0000000000000000 R09: 00007ffcabbeaca3 [ 634.762076][ T2875] R10: 00007fc9253e91c8 R11: 0000000000000246 R12: 00007ffcabcc8b58 [ 634.762077][ T2875] R13: 0000000000405740 R14: 000000000042bdf0 R15: 00007fc925626000 [ 634.762083][ T2875] [ 634.762085][ T2875] ================================================================== [ 634.774033][ T2875] Disabling lock debugging due to kernel taint