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/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D243106 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=3D210458&action= =3Dedit proposed patch reallocarray() is used in jailparam_all() to shrink the jail parameter list= .=20 It appears that the final call to shrink the list is unsafe if the realloca= tion 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. --=20 You are receiving this mail because: You are the assignee for the bug.=
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