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virtiofsd: Fix security.capability comparison 

My security fix for the security.capability remap has a silly early
segfault in a simple case where there is an xattrmapping but it doesn't
remap the security.capability.

Fixes: e586edcb41 ("virtiofs: drop remapped security.capability xattr as needed")
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20210401145845.78445-1-dgilbert@redhat.com>
Reviewed-by: Connor Kuehl <ckuehl@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2021-04-01 15:58:45 +01:00
parent d0d3dd401b
commit 99c3ac6dbe
1 changed files with 2 additions and 1 deletions
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3
tools/virtiofsd/passthrough_ll.c
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@ -2636,7 +2636,8 @@ static void parse_xattrmap(struct lo_data *lo)
strerror(ret));
exit(1);
}
if (!strcmp(lo->xattr_security_capability, "security.capability")) {
if (!lo->xattr_security_capability ||
!strcmp(lo->xattr_security_capability, "security.capability")) {
/* 1-1 mapping, don't need to do anything */
free(lo->xattr_security_capability);
lo->xattr_security_capability = NULL;