syz-executor109 cpuset=/ mems_allowed=0 CPU: 1 PID: 6193 Comm: syz-executor109 Not tainted 4.19.0+ #81 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: 1 PID: 6193 Comm: syz-executor109 Not tainted 4.19.0+ #81 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 dump_header+0x405/0x1e70 mm/oom_kill.c:441 oom_kill_process+0x435/0x1620 mm/oom_kill.c:953 out_of_memory+0x18fb/0x1fb0 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3537 [inline] __alloc_pages_slowpath mm/page_alloc.c:4250 [inline] __alloc_pages_nodemask+0x5599/0x6640 mm/page_alloc.c:4405 alloc_pages_current+0x584/0x7e0 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:511 [inline] __vmalloc_area_node mm/vmalloc.c:1689 [inline] __vmalloc_node_range+0x879/0x12a0 mm/vmalloc.c:1752 __vmalloc_node mm/vmalloc.c:1797 [inline] __vmalloc_node_flags mm/vmalloc.c:1811 [inline] vzalloc+0xd8/0xf0 mm/vmalloc.c:1850 alloc_one_pg_vec_page net/packet/af_packet.c:4172 [inline] alloc_pg_vec net/packet/af_packet.c:4197 [inline] packet_set_ring+0xe7f/0x3d10 net/packet/af_packet.c:4281 packet_setsockopt+0x145e/0x6830 net/packet/af_packet.c:3649 __sys_setsockopt+0x493/0x540 net/socket.c:1902 __do_sys_setsockopt net/socket.c:1913 [inline] __se_sys_setsockopt+0xdd/0x100 net/socket.c:1910 __x64_sys_setsockopt+0x62/0x80 net/socket.c:1910 do_syscall_64+0xcf/0x110 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x440e79 Code: Bad RIP value. RSP: 002b:00007ffe51f27378 EFLAGS: 00000213 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e79 RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000616 R09: 00000000004002c8 R10: 0000000020006a80 R11: 0000000000000213 R12: 0000000000401d10 R13: 0000000000401da0 R14: 0000000000000000 R15: 0000000000000000 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 ==================================================================