github.com/google/syzkaller@v0.0.0-20240517125934-c0f1611a36d6/pkg/report/testdata/linux/guilty/35 (about)

     1  FILE: arch/x86/kernel/dumpstack.c
     2  
     3  ==================================================================
     4  BUG: KMSAN: use of uninitialized memory in show_trace_log_lvl+0xda4/0x1030 arch/x86/kernel/dumpstack.c:203
     5  CPU: 1 PID: 4975 Comm: syz-executor1 Not tainted 4.16.0-rc4+ #60
     6  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
     7  Call Trace:
     8   __dump_stack lib/dump_stack.c:17 [inline]
     9   dump_stack+0x14a/0x1d0 lib/dump_stack.c:53
    10   kmsan_report+0x142/0x1f0 mm/kmsan/kmsan.c:1093
    11   __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676
    12   show_trace_log_lvl+0xda4/0x1030 arch/x86/kernel/dumpstack.c:203
    13   show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:236
    14   __dump_stack lib/dump_stack.c:17 [inline]
    15   dump_stack+0x185/0x1d0 lib/dump_stack.c:53
    16   warn_alloc+0x401/0x660 mm/page_alloc.c:3317
    17   __vmalloc_node_range+0xa59/0x1120 mm/vmalloc.c:1775
    18   __vmalloc_node mm/vmalloc.c:1804 [inline]
    19   __vmalloc_node_flags_caller+0x102/0x120 mm/vmalloc.c:1826
    20   kvmalloc_node+0x2aa/0x2e0 mm/util.c:428
    21   kvmalloc include/linux/mm.h:541 [inline]
    22   kvmalloc_array include/linux/mm.h:557 [inline]
    23   xt_alloc_entry_offsets+0x62/0x70 net/netfilter/x_tables.c:778
    24   translate_table+0x21b/0x3890 net/ipv6/netfilter/ip6_tables.c:703
    25   do_replace net/ipv6/netfilter/ip6_tables.c:1164 [inline]
    26   do_ip6t_set_ctl+0x60e/0x930 net/ipv6/netfilter/ip6_tables.c:1690
    27   nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
    28   nf_setsockopt+0x476/0x4d0 net/netfilter/nf_sockopt.c:115
    29   ipv6_setsockopt+0x1e8/0x360 net/ipv6/ipv6_sockglue.c:927
    30   tcp_setsockopt+0x1bb/0x1f0 net/ipv4/tcp.c:2905
    31   sock_common_setsockopt+0x137/0x170 net/core/sock.c:2975
    32   SYSC_setsockopt+0x405/0x570 net/socket.c:1849
    33   SyS_setsockopt+0x76/0xa0 net/socket.c:1828
    34   do_syscall_64+0x2f1/0x450 arch/x86/entry/common.c:287
    35   entry_SYSCALL_64_after_hwframe+0x3d/0xa2
    36  RIP: 0033:0x453e69
    37  RSP: 002b:00007fae2c76ec68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
    38  RAX: ffffffffffffffda RBX: 00007fae2c76f6d4 RCX: 0000000000453e69
    39  RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000013
    40  RBP: 000000000072bea0 R08: 0000000000000004 R09: 0000000000000000
    41  R10: 0000000020001fde R11: 0000000000000246 R12: 00000000ffffffff
    42  R13: 0000000000000520 R14: 00000000006f7ba0 R15: 0000000000000000
    43  chained origin:
    44   kmsan_save_stack_with_flags mm/kmsan/kmsan.c:303 [inline]
    45   kmsan_save_stack mm/kmsan/kmsan.c:318 [inline]
    46   kmsan_internal_chain_origin+0x12d/0x210 mm/kmsan/kmsan.c:709
    47   __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:521
    48   update_stack_state+0x9de/0xa30 arch/x86/kernel/unwind_frame.c:261
    49   unwind_next_frame+0x607/0xe40 arch/x86/kernel/unwind_frame.c:329
    50   show_trace_log_lvl+0xb48/0x1030 arch/x86/kernel/dumpstack.c:212
    51   show_stack+0xfc/0x150 arch/x86/kernel/dumpstack.c:236
    52   __dump_stack lib/dump_stack.c:17 [inline]
    53   dump_stack+0x185/0x1d0 lib/dump_stack.c:53
    54   warn_alloc+0x401/0x660 mm/page_alloc.c:3317
    55   __vmalloc_node_range+0xa59/0x1120 mm/vmalloc.c:1775
    56   __vmalloc_node mm/vmalloc.c:1804 [inline]
    57   __vmalloc_node_flags_caller+0x102/0x120 mm/vmalloc.c:1826
    58   kvmalloc_node+0x2aa/0x2e0 mm/util.c:428
    59   kvmalloc include/linux/mm.h:541 [inline]
    60   kvmalloc_array include/linux/mm.h:557 [inline]
    61   xt_alloc_entry_offsets+0x62/0x70 net/netfilter/x_tables.c:778
    62   translate_table+0x21b/0x3890 net/ipv6/netfilter/ip6_tables.c:703
    63   do_replace net/ipv6/netfilter/ip6_tables.c:1164 [inline]
    64   do_ip6t_set_ctl+0x60e/0x930 net/ipv6/netfilter/ip6_tables.c:1690
    65   nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
    66   nf_setsockopt+0x476/0x4d0 net/netfilter/nf_sockopt.c:115
    67   ipv6_setsockopt+0x1e8/0x360 net/ipv6/ipv6_sockglue.c:927
    68   tcp_setsockopt+0x1bb/0x1f0 net/ipv4/tcp.c:2905
    69   sock_common_setsockopt+0x137/0x170 net/core/sock.c:2975
    70   SYSC_setsockopt+0x405/0x570 net/socket.c:1849
    71   SyS_setsockopt+0x76/0xa0 net/socket.c:1828
    72   do_syscall_64+0x2f1/0x450 arch/x86/entry/common.c:287
    73   entry_SYSCALL_64_after_hwframe+0x3d/0xa2
    74  origin description: ----ad.i@selinux_socket_setsockopt
    75  local variable created at:
    76   selinux_socket_setsockopt+0x73/0x3b0 security/selinux/hooks.c:4627
    77   security_socket_setsockopt+0x130/0x210 security/security.c:1396
    78  ==================================================================