Messages in this thread | | | Date | Mon, 9 Aug 2004 22:45:33 +0100 | Subject | sysfs patches in -mm create bad permissions | From | Adrian Bridgett <> |
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Thanks to GregKH for looking at this too.
Odd one this. It seems like whoever looks at some files in /sys first, owns them. e.g I just created a new user fred, rebooted. Then "find /sys -user fred" shows loads of files. Permissions are 644 and so the owner is important.
In particular, "echo -n disk > /sys/power/state" will cause the machine to suspend to disk (hence the security tag).
Found when I suddenly thought, "hang on, shouldn't I be root" :-)
Results so far:
2.6.8-rc2-mm1 - bad 2.6.8-rc2 - okay 2.6.8-rc3 - okay 2.6.8-rc3-mm1 - bad
.config file available on request. compiled with gcc 3.3.4 (debian 1:3.3.4-6)
Adrian -- Email: adrian@smop.co.uk Windows NT - Unix in beta-testing. GPG/PGP keys available on public key servers Debian GNU/Linux -*- By professionals for professionals -*- www.debian.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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