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From: Szabolcs Nagy <nsz@port70.net>
To: musl@lists.openwall.com
Subject: Re: util-linux-2.23 mount segmentation fault error
Date: Wed, 29 May 2013 22:04:53 +0200	[thread overview]
Message-ID: <20130529200453.GC7095@port70.net> (raw)
In-Reply-To: <CAGSZau18M5fhRDv298mU0etLexBCJzB8yuTaRQtaiyToMMArLA@mail.gmail.com>

* plan9assembler <plan9assembler@gmail.com> [2013-05-29 23:41:13 +0900]:
> util-linux umount gets segfaults randomly..(X)
> util-linux umount gets segfaults always..(O)
> 
> # ./umount /mnt
> traps: umount[9444] general protection ip:7f9c48e618fb sp:7fff72447b88
> error:0 in libc.so[7f9c48e16000+72000]
> Segmentation fault.

it seems util-linux uses sscanf with %ms to parse mtab
in libmount in tab_parse.c

after i fixed that mount and umount does not segfault here
(used fixed size malloc and %s instead)


  reply	other threads:[~2013-05-29 20:04 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-25 15:46 plan9assembler
2013-05-25 16:26 ` Rich Felker
2013-05-25 21:34   ` plan9assembler
2013-05-26  9:14     ` Szabolcs Nagy
2013-05-26 11:22       ` plan9assembler
2013-05-27 14:05         ` plan9assembler
2013-05-27 14:29           ` Szabolcs Nagy
2013-05-27 21:40             ` plan9assembler
2013-05-29 13:46               ` plan9assembler
2013-05-29 14:11               ` Luca Barbato
2013-05-29 14:32                 ` plan9assembler
2013-05-29 14:41                   ` plan9assembler
2013-05-29 20:04                     ` Szabolcs Nagy [this message]
2013-05-29 22:07                       ` plan9assembler
2013-05-29 22:17                         ` plan9assembler
2013-05-30  6:11                           ` plan9assembler
2013-05-30  6:43                             ` Szabolcs Nagy
2013-05-30  7:26                               ` plan9assembler
2013-05-30  8:37                                 ` Szabolcs Nagy
2013-06-01 23:14                                   ` plan9assembler
2013-06-01 23:16                                     ` plan9assembler
2013-06-02  1:50                                     ` John Spencer
2013-06-02 10:55                                       ` plan9assembler
2013-06-02 13:00                                         ` Szabolcs Nagy
2013-06-02 22:02                                           ` plan9assembler

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