Segmentation fault in aureport's safe_print_string()
Zephyr Pellerin
zephyr.pellerin at polyswarm.io
Wed May 22 20:08:06 UTC 2019
While running `aureport -tm', I recieved a segmentation fault, I won't be
able to attach the core dump but I've tried include rudimentary information
about the crash.
- Backtrace
#0 0x00007ff3d7bbf8a1 in __strlen_avx2 () from /lib64/libc.so.6
#1 0x000055b44a62f304 in safe_print_string ()
#2 0x000055b44a62dbd6 in print_per_event_item ()
#3 0x000055b44a62c709 in per_event_processing ()
#4 0x000055b44a62184c in process_log_fd ()
#5 0x000055b44a621c78 in process_logs ()
#6 0x000055b44a621597 in main ()
- Base registers
rax 0xd 13
rbx 0x0 0
rcx 0x0 0
rdx 0x0 0
rsi 0x0 0
rdi 0x0 0
rbp 0x0 0x0
rsp 0x7ffff261b748 0x7ffff261b748
r8 0x7ff3d7be37f7 140685273348087
r9 0x7ff3d7bdd0a0 140685273321632
r10 0x0 0
r11 0x7ff3d7bdd120 140685273321760
r12 0x0 0
r13 0x7ffff261b910 140737259878672
r14 0x7ffff261b8e0 140737259878624
r15 0x55b44c570a10 94232863246864
rip 0x7ff3d7bbf8a1 0x7ff3d7bbf8a1 <__strlen_avx2+17>
eflags 0x10283 [ CF SF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
- AVX registers
ymm0 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm1 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0, 0x0, 0x0, 0xff, 0x0,
0xff, 0x0, 0x0, 0xff, 0x0, 0x0, 0xff, 0x0 <repeats 20 times>}, v16_int16 =
{0x0, 0xff00, 0xff00, 0x0, 0xff, 0xff00, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0},
v8_int32 = {0xff000000, 0xff00, 0xff0000ff, 0x0, 0x0, 0x0, 0x0,
0x0}, v4_int64 = {0xff00ff000000, 0xff0000ff, 0x0, 0x0}, v2_int128 =
{0xff0000ff0000ff00ff000000, 0x0}}
ymm2 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0, 0x0, 0x0, 0xff, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff, 0x0 <repeats 20 times>}, v16_int16 =
{0x0, 0xff00, 0x0, 0x0, 0x0, 0xff00, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v8_int32 = {
0xff000000, 0x0, 0xff000000, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int64 =
{0xff000000, 0xff000000, 0x0, 0x0}, v2_int128 =
{0xff00000000000000ff000000, 0x0}}
ymm3 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0, 0x0, 0x0, 0xff, 0x0
<repeats 28 times>}, v16_int16 = {0x0, 0xff00, 0x0 <repeats 14 times>},
v8_int32 = {0xff000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int64 =
{0xff000000, 0x0, 0x0, 0x0},
v2_int128 = {0xff000000, 0x0}}
ymm4 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x8000000000000000, 0x8000000000000000, 0x0, 0x0}, v32_int8 =
{0x0, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff, 0xff, 0x0, 0x0, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0x0 <repeats 16 times>}, v16_int16 = {0x0, 0x0, 0xffff,
0xffff, 0x0, 0xffff,
0xffff, 0xffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32
= {0x0, 0xffffffff, 0xffff0000, 0xffffffff, 0x0, 0x0, 0x0, 0x0}, v4_int64 =
{0xffffffff00000000, 0xffffffffffff0000, 0x0, 0x0}, v2_int128 =
{0xffffffffffff0000ffffffff00000000, 0x0}}
ymm5 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x8000000000000000, 0x8000000000000000, 0x0, 0x0}, v32_int8 =
{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff, 0xff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0xff, 0xff, 0x0 <repeats 16 times>}, v16_int16 = {0x0, 0x0, 0x0, 0xffff,
0x0, 0x0, 0x0, 0xffff,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32 = {0x0,
0xffff0000, 0x0, 0xffff0000, 0x0, 0x0, 0x0, 0x0}, v4_int64 =
{0xffff000000000000, 0xffff000000000000, 0x0, 0x0}, v2_int128 =
{0xffff000000000000ffff000000000000, 0x0}}
ymm6 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm7 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm8 {v8_float = {0x0, 0x0, 0x0, 0xffffffff, 0x0, 0x0, 0x0,
0x0}, v4_double = {0x0, 0x7fffffffffffffff, 0x0, 0x0}, v32_int8 = {0x45,
0x4e, 0x54, 0x0, 0x20, 0x25, 0x73, 0x20, 0x25, 0x73, 0x20, 0x0, 0x64, 0x61,
0x74, 0x61, 0x0 <repeats 16 times>}, v16_int16 = {0x4e45, 0x54, 0x2520,
0x2073, 0x7325, 0x20,
0x6164, 0x6174, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32
= {0x544e45, 0x20732520, 0x207325, 0x61746164, 0x0, 0x0, 0x0, 0x0},
v4_int64 = {0x2073252000544e45, 0x6174616400207325, 0x0, 0x0}, v2_int128 =
{0x61746164002073252073252000544e45, 0x0}}
ymm9 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm10 {v8_float = {0x0, 0x0, 0x0, 0xffffffff, 0x0, 0x0, 0x0,
0x0}, v4_double = {0x0, 0x7fffffffffffffff, 0x0, 0x0}, v32_int8 = {0x55,
0x45, 0x17, 0x0, 0x16, 0x58, 0x16, 0x10, 0x6, 0x6, 0x0, 0x16, 0x16, 0x42,
0x65, 0x65, 0x0 <repeats 16 times>}, v16_int16 = {0x4555, 0x17, 0x5816,
0x1016, 0x606, 0x1600,
0x4216, 0x6565, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int32
= {0x174555, 0x10165816, 0x16000606, 0x65654216, 0x0, 0x0, 0x0, 0x0},
v4_int64 = {0x1016581600174555, 0x6565421616000606, 0x0, 0x0}, v2_int128 =
{0x65654216160006061016581600174555, 0x0}}
ymm11 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm12 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm13 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm14 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
ymm15 {v8_float = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_double = {0x0, 0x0, 0x0, 0x0}, v32_int8 = {0x0 <repeats 32 times>},
v16_int16 = {0x0 <repeats 16 times>}, v8_int32 = {0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0}, v4_int64 = {0x0, 0x0, 0x0, 0x0}, v2_int128 = {0x0, 0x0}}
- (gdb) x/128x $rsp
0x7ffff261b748: 0x4a62f304 0x000055b4 0x4c570a10
0x000055b4
0x7ffff261b758: 0x4c570a10 0x000055b4 0xf261b790
0x00007fff
0x7ffff261b768: 0x4a62dbd6 0x000055b4 0x4c570b28
0x000055b4
0x7ffff261b778: 0x4c562db9 0x000055b4 0x4c570a50
0x000055b4
0x7ffff261b788: 0x4a627625 0x000055b4 0x312f3031
0x30322f38
0x7ffff261b798: 0x31203831 0x32333a32 0x0034313a
0x000055b4
0x7ffff261b7a8: 0x00000000 0x00000000 0x4a8390a0
0x000055b4
0x7ffff261b7b8: 0x4a62540a 0x000055b4 0x00000001
0x00000000
0x7ffff261b7c8: 0x1a278200 0x8d5822a5 0x4c570b10
0x000055b4
0x7ffff261b7d8: 0x4c570a10 0x000055b4 0x00000000
0x00000000
0x7ffff261b7e8: 0x4c570a50 0x000055b4 0xf261b8e0
0x00007fff
0x7ffff261b7f8: 0x4a6294ef 0x000055b4 0xf261b830
0x00007fff
0x7ffff261b808: 0xf261b828 0x00007fff 0x5bc8dfbe
0x00000000
0x7ffff261b818: 0x00000015 0x00000000 0x000000f8
0x00000000
0x7ffff261b828: 0x00000000 0x00000000 0x00000463
0x000000bc
0x7ffff261b838: 0x00000011 0x00000000 0x4c562d70
0x000055b4
0x7ffff261b848: 0x00000000 0x00000000 0x0000012e
0x0000012e
0x7ffff261b858: 0x00000463 0x00007ff3 0x00000000
0x00000000
0x7ffff261b868: 0x1a278200 0x8d5822a5 0x0000230a
0x00000000
0x7ffff261b878: 0x1a278200 0x8d5822a5 0x4c570a10
0x000055b4
0x7ffff261b888: 0x4c570a10 0x000055b4 0x4a8390a0
0x000055b4
0x7ffff261b898: 0x00000000 0x00000000 0xf261b910
0x00007fff
0x7ffff261b8a8: 0xf261b8e0 0x00007fff 0x4c570a10
0x000055b4
0x7ffff261b8b8: 0x4a62c709 0x000055b4 0x4c565d40
0x000055b4
0x7ffff261b8c8: 0x4a62184c 0x000055b4 0x4c55fd40
0x000055b4
0x7ffff261b8d8: 0x4c561420 0x000055b4 0x4a631233
0x000055b4
0x7ffff261b8e8: 0x00000001 0x00000000 0x00000000
0x00000000
0x7ffff261b8f8: 0xd7adf05a 0x00007ff3 0xd7adfa10
0x00007ff3
0x7ffff261b908: 0x00000000 0x00000000 0x00000000
0x00000000
0x7ffff261b918: 0x00000000 0x00000000 0x00000000
0x00000000
0x7ffff261b928: 0x1a278200 0x8d5822a5 0x00000000
0x00000000
0x7ffff261b938: 0x4c55fd40 0x000055b4 0x4c55fd40
0x000055b4
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