QAT: Invalid ioctl fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 should_failslab+0x279/0x2a0 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slub.c:2663 [inline] slab_alloc mm/slub.c:2745 [inline] __kmalloc_track_caller+0x208/0xcb0 mm/slub.c:4339 ================================================================== BUG: KMSAN: uninit-value in show_trace_log_lvl+0xda4/0x1030 arch/x86/kernel/dumpstack.c:203 CPU: 0 PID: 9517 Comm: syz-executor2 Not tainted 4.16.0+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x14a/0x1d0 lib/dump_stack.c:53 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676 show_trace_log_lvl+0xda4/0x1030 arch/x86/kernel/dumpstack.c:203 show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:236 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 should_failslab+0x279/0x2a0 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slub.c:2663 [inline] slab_alloc mm/slub.c:2745 [inline] __kmalloc_track_caller+0x208/0xcb0 mm/slub.c:4339 memdup_user+0x7c/0x200 mm/util.c:160 strndup_user+0x134/0x1f0 mm/util.c:217 perf_event_set_filter kernel/events/core.c:8595 [inline] _perf_ioctl kernel/events/core.c:4730 [inline] perf_ioctl+0x1877/0x5460 kernel/events/core.c:4770 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0xaf0/0x2440 fs/ioctl.c:686 SYSC_ioctl+0x1d2/0x260 fs/ioctl.c:701 SyS_ioctl+0x54/0x80 fs/ioctl.c:692 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 RIP: 0033:0x455259 RSP: 002b:00007f157a2ffc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f157a3006d4 RCX: 0000000000455259 RDX: 00000000200000c0 RSI: 0000000040082406 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 0000000000000291 R14: 00000000006f6e38 R15: 0000000000000000 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline] kmsan_save_stack mm/kmsan/kmsan.c:293 [inline] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:521 update_stack_state+0x9e2/0xa40 arch/x86/kernel/unwind_frame.c:261 unwind_next_frame+0x618/0xe50 arch/x86/kernel/unwind_frame.c:329 show_trace_log_lvl+0xb49/0x1030 arch/x86/kernel/dumpstack.c:212 show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:236 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x87b/0xab0 lib/fault-inject.c:149 should_failslab+0x279/0x2a0 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slub.c:2663 [inline] slab_alloc mm/slub.c:2745 [inline] __kmalloc_track_caller+0x208/0xcb0 mm/slub.c:4339 memdup_user+0x7c/0x200 mm/util.c:160 strndup_user+0x134/0x1f0 mm/util.c:217 perf_event_set_filter kernel/events/core.c:8595 [inline] _perf_ioctl kernel/events/core.c:4730 [inline] perf_ioctl+0x1877/0x5460 kernel/events/core.c:4770 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0xaf0/0x2440 fs/ioctl.c:686 SYSC_ioctl+0x1d2/0x260 fs/ioctl.c:701 SyS_ioctl+0x54/0x80 fs/ioctl.c:692 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Local variable description: ----timeout@futex_wait Variable was created at: futex_wait+0xde/0xc20 kernel/futex.c:2613 do_futex+0x284a/0x6ad0 kernel/futex.c:3527 ==================================================================