The commit b530104 seems correct. I tried the following change then the
panic issue is gone.
@@ -2885,8 +2885,8 @@ static int selinux_dentry_init_security(struct dentry
*dentry, int mode,
if (xattr_name)
*xattr_name = XATTR_NAME_SELINUX;
- return security_sid_to_context(newsid, (char **)ctx,
- ctxlen);
+ cp->id = LSM_ID_SELINUX;
+ return security_sid_to_context(newsid, &cp->context, &cp->len);
}
It looks like that the ctx was not initialized in this case.
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https://bugs.launchpad.net/bugs/2115447
Title:
Ubuntu 24.04.2: NULL pointer dereference with Ceph and selinux
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