Debian Bug report logs - #1004894
sudo: [i386] invalid opcode

version graph

Package: sudo; Maintainer for sudo is Debian Sudo Maintainers <[email protected]>; Source for sudo is src:sudo (PTS, buildd, popcon).

Reported by: Martin-Éric Racine <[email protected]>

Date: Thu, 3 Feb 2022 07:15:02 UTC

Severity: minor

Tags: wontfix

Found in version sudo/1.9.9-1

Fix blocked by 1005863: gcc: should reject combination of i686 architecture and fcf-protection feature

Forwarded to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104713 https://github.com/sudo-project/sudo/issues/140

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Subject: Bug#1004894: sudo: [i386] invalid opcode
Reply-To: Henning Paul <[email protected]>, [email protected]
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Am 18.02.22 um 15:21 schrieb Henning Paul:
> On Wed, 16 Feb 2022 22:45:28 Martin-Éric Racine wrote:
>
>> On Wed, Feb 16, 2022 at 10:31 PM Marc Haber
>> <[email protected]> wrote:
>>>
>>> On Wed, Feb 16, 2022 at 07:15:37PM +0200, Martin-Éric Racine wrote:
>>> So it still doesn't build on Geode LX.
>>>
>>> How about your i386 build chroot?
>>
>> Builds fine on my i386 chroot (amd64 host) and the resulting binary
>> doesn't dump core when installed on the Geode. Assuming there's no
>> uncovered corner case due to other optimizations, I think we've got a
>> winner.
>
> Triggered build on a fresh sid install on my Alix board and obtained the
> attached log file. AFAICT, the compile itself did not produce any
> errors, but fuzz_sudo_conf causes the known illegal opcode exception.
>
> best regards
> Henning

lscpu:

root@alix:~# lscpu
Architecture:           i586
  CPU op-mode(s):       32-bit
  Address sizes:        32 bits physical, 32 bits virtual
  Byte Order:           Little Endian
CPU(s):                 1
  On-line CPU(s) list:  0
Vendor ID:              AuthenticAMD
  Model name:           Geode(TM) Integrated Processor by AMD PCS
    CPU family:         5
    Model:              10
    Thread(s) per core: 1
    Core(s) per socket: 1
    Socket(s):          1
    Stepping:           2
    BogoMIPS:           996.02
    Flags:              fpu de pse tsc msr cx8 sep pge cmov clflush mmx
mmxext 3
                        dnowext 3dnow cpuid 3dnowprefetch vmmcall
Caches (sum of all):
  L1d:                  57 KiB (1 instance)
  L1i:                  57 KiB (1 instance)
  L2:                   128 KiB (1 instance)
Vulnerabilities:
  Itlb multihit:        Not affected
  L1tf:                 Not affected
  Mds:                  Not affected
  Meltdown:             Not affected
  Spec store bypass:    Vulnerable
  Spectre v1:           Mitigation; usercopy/swapgs barriers and __user
pointer
                        sanitization
  Spectre v2:           Mitigation; Full generic retpoline, STIBP
disabled, RSB
                        filling
  Srbds:                Not affected
  Tsx async abort:      Not affected

best regards
Henning

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