Date: Mon, 26 Nov 2018 19:07:15 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 232206] [truss] update strsize parameter handling Message-ID: <bug-232206-227-RYn9WtKpOV@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-232206-227@https.bugs.freebsd.org/bugzilla/> References: <bug-232206-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D232206 --- Comment #4 from David Carlier <devnexen@gmail.com> --- The bug is mainly all about fixing a possible overflow when using string si= ze parameter, basically by giving a value over an integer maximum value. Easily reproducible by "trussing" the syslog process with this sort of valu= e (I just print out the value on purpose): truss -s 27836487264287642746284662746874678412834 ... makes the process aborting /usr/obj/usr/src/amd64.amd64/usr.bin/truss/truss -s 23894723984789237473278482974382479238794728379843828794 -p 1509 STRSIZE -1 select(10,{ 3 5 8 9 },0x0,0x0,0x0) =3D 1 (0x1) Bus error (core dumped) whereas with a more "reasonable" value it works as always /usr/obj/usr/src/amd64.amd64/usr.bin/truss/truss -s 80 -p 1553 STRSIZE 80 select(10,{ 3 5 8 9 },0x0,0x0,0x0) =3D 1 (0x1) read(5,"Firmware Error (ACPI): Could not resolve [\\_SB.PCI0.LPCB.HEC.ECRD], AE_NOT_FOUN"...,2047) =3D 394 (0x18a) writev(14,[{"Nov 26 19:06:24",15},{" ",1},{"freeflame",9},{" ",1},{"kernel",6},{": ",2},{"Firmware Error (ACPI): Could not resolve [\\_SB.PCI0.LPCB.HEC.ECRD], AE_NOT_FOUN"...,102},{"\n",1}],8) =3D 137 (0x89) writev(14,[{"Nov 26 19:06:24",15},{" ",1},{"freeflame",9},{" ",1},{"kernel",6},{": ",2},{"ACPI Error: Method parse/execution failed \\_TZ.TZ00._TMP, AE_NOT_FOUND (2018103"...,93},{"\n",1}],8) =3D 128 (0x80) writev(14,[{"Nov 26 19:06:24",15},{" ",1},{"freeflame",9},{" ",1},{"kernel",6},{": ",2},{"Firmware Error (ACPI): Could not resolve [\\_SB.PCI0.LPCB.HEC.ECRD], AE_NOT_FOUN"...,102},{"\n",1}],8) =3D 137 (0x89) writev(14,[{"Nov 26 19:06:24",15},{" ",1},{"freeflame",9},{" ",1},{"kernel",6},{": ",2},{"ACPI Error: Method parse/execution failed \\_TZ.TZ01._TMP, AE_NOT_FOUND (2018103"...,93},{"\n",1}],8) =3D 128 (0x80) read(5,0x7fffffffde50,2047) ERR#35 'Resource temporari= ly unavailable' select(10,{ 3 5 8 9 },0x0,0x0,{ 0.000000 }) =3D 0 (0x0) fsync(0xe) =3D 0 (0x0) select(10,{ 3 5 8 9 },0x0,0x0,0x0) =3D 1 (0x1) ... --=20 You are receiving this mail because: You are the assignee for the bug.=
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