name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 9257 Comm: syz-executor1 Not tainted 4.19.0+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: ================================================================== BUG: KMSAN: uninit-value in show_trace_log_lvl+0x53f/0x11e0 arch/x86/kernel/dumpstack.c:212 CPU: 0 PID: 9257 Comm: syz-executor1 Not tainted 4.19.0+ #82 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x419/0x480 lib/dump_stack.c:113 kmsan_report+0x19f/0x300 mm/kmsan/kmsan.c:911 __msan_warning+0x76/0xd0 mm/kmsan/kmsan_instr.c:415 show_trace_log_lvl+0x53f/0x11e0 arch/x86/kernel/dumpstack.c:212 show_stack+0x12e/0x170 arch/x86/kernel/dumpstack.c:293 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x32d/0x480 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x11e5/0x13c0 lib/fault-inject.c:149 __should_failslab+0x278/0x2a0 mm/failslab.c:32 should_failslab+0x29/0x70 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slub.c:2653 [inline] slab_alloc mm/slub.c:2735 [inline] kmem_cache_alloc+0x146/0xe20 mm/slub.c:2740 getname_flags+0x136/0xac0 fs/namei.c:140 getname+0x55/0x60 fs/namei.c:211 do_sys_open+0x538/0x960 fs/open.c:1057 __do_sys_open fs/open.c:1081 [inline] __se_sys_open+0xad/0xc0 fs/open.c:1076 __x64_sys_open+0x4a/0x70 fs/open.c:1076 do_syscall_64+0xcf/0x110 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x4111a1 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 b4 17 00 00 c3 48 83 ec 08 e8 8a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 d3 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f4e1762f7a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00000000004111a1 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f4e1762f850 RBP: 000000000072bf00 R08: 000000000000000f R09: 0000000000000000 R10: 0000000000000064 R11: 0000000000000293 R12: 00007f4e176306d4 R13: 00000000004c4ffd R14: 00000000004d87a8 R15: 0000000000000003 Local variable description: ----state@show_trace_log_lvl Variable was created at: show_trace_log_lvl+0xb3/0x11e0 arch/x86/kernel/dumpstack.c:164 show_stack+0x12e/0x170 arch/x86/kernel/dumpstack.c:293 ==================================================================