Date: Sun, 05 Jan 2020 05:39:02 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 243106] jail(3): memory leak when resizing jail parameter list. Message-ID: <bug-243106-227@https.bugs.freebsd.org/bugzilla/>
index | next in thread | raw e-mail
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243106 Bug ID: 243106 Summary: jail(3): memory leak when resizing jail parameter list. Product: Base System Version: 12.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: chwoithe@yahoo.com Created attachment 210458 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=210458&action=edit proposed patch reallocarray() is used in jailparam_all() to shrink the jail parameter list. It appears that the final call to shrink the list is unsafe if the reallocation fails. There is a possibility, for example, that NULL is assigned to *jpp and njp keeps its previous (likely non-zero) value. jls, which uses jailparam_all(), will attempt to use this invalid list. I have attached a proposed fix. -- You are receiving this mail because: You are the assignee for the bug.help
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-243106-227>