[ceph] parse_longname(): strrchr() expects NUL-terminated string

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... and parse_longname() is not guaranteed that.  That's the reason
why it uses kmemdup_nul() to build the argument for kstrtou64();
the problem is, kstrtou64() is not the only thing that need it.

Just get a NUL-terminated copy of the entire thing and be done
with that...

Fixes: dd66df0053 "ceph: add support for encrypted snapshot names"
Tested-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

...

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Al Viro 2025-02-18 17:57:17 -05:00

parent 19272b37aa

commit 101841c383

1 changed files with 12 additions and 19 deletions

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31

fs/ceph/crypto.c

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