You can subscribe to this list here.
| 2002 |
Jan
|
Feb
|
Mar
|
Apr
|
May
|
Jun
|
Jul
|
Aug
|
Sep
(1) |
Oct
(122) |
Nov
(152) |
Dec
(69) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2003 |
Jan
(6) |
Feb
(25) |
Mar
(73) |
Apr
(82) |
May
(24) |
Jun
(25) |
Jul
(10) |
Aug
(11) |
Sep
(10) |
Oct
(54) |
Nov
(203) |
Dec
(182) |
| 2004 |
Jan
(307) |
Feb
(305) |
Mar
(430) |
Apr
(312) |
May
(187) |
Jun
(342) |
Jul
(487) |
Aug
(637) |
Sep
(336) |
Oct
(373) |
Nov
(441) |
Dec
(210) |
| 2005 |
Jan
(385) |
Feb
(480) |
Mar
(636) |
Apr
(544) |
May
(679) |
Jun
(625) |
Jul
(810) |
Aug
(838) |
Sep
(634) |
Oct
(521) |
Nov
(965) |
Dec
(543) |
| 2006 |
Jan
(494) |
Feb
(431) |
Mar
(546) |
Apr
(411) |
May
(406) |
Jun
(322) |
Jul
(256) |
Aug
(401) |
Sep
(345) |
Oct
(542) |
Nov
(308) |
Dec
(481) |
| 2007 |
Jan
(427) |
Feb
(326) |
Mar
(367) |
Apr
(255) |
May
(244) |
Jun
(204) |
Jul
(223) |
Aug
(231) |
Sep
(354) |
Oct
(374) |
Nov
(497) |
Dec
(362) |
| 2008 |
Jan
(322) |
Feb
(482) |
Mar
(658) |
Apr
(422) |
May
(476) |
Jun
(396) |
Jul
(455) |
Aug
(267) |
Sep
(280) |
Oct
(253) |
Nov
(232) |
Dec
(304) |
| 2009 |
Jan
(486) |
Feb
(470) |
Mar
(458) |
Apr
(423) |
May
(696) |
Jun
(461) |
Jul
(551) |
Aug
(575) |
Sep
(134) |
Oct
(110) |
Nov
(157) |
Dec
(102) |
| 2010 |
Jan
(226) |
Feb
(86) |
Mar
(147) |
Apr
(117) |
May
(107) |
Jun
(203) |
Jul
(193) |
Aug
(238) |
Sep
(300) |
Oct
(246) |
Nov
(23) |
Dec
(75) |
| 2011 |
Jan
(133) |
Feb
(195) |
Mar
(315) |
Apr
(200) |
May
(267) |
Jun
(293) |
Jul
(353) |
Aug
(237) |
Sep
(278) |
Oct
(611) |
Nov
(274) |
Dec
(260) |
| 2012 |
Jan
(303) |
Feb
(391) |
Mar
(417) |
Apr
(441) |
May
(488) |
Jun
(655) |
Jul
(590) |
Aug
(610) |
Sep
(526) |
Oct
(478) |
Nov
(359) |
Dec
(372) |
| 2013 |
Jan
(467) |
Feb
(226) |
Mar
(391) |
Apr
(281) |
May
(299) |
Jun
(252) |
Jul
(311) |
Aug
(352) |
Sep
(481) |
Oct
(571) |
Nov
(222) |
Dec
(231) |
| 2014 |
Jan
(185) |
Feb
(329) |
Mar
(245) |
Apr
(238) |
May
(281) |
Jun
(399) |
Jul
(382) |
Aug
(500) |
Sep
(579) |
Oct
(435) |
Nov
(487) |
Dec
(256) |
| 2015 |
Jan
(338) |
Feb
(357) |
Mar
(330) |
Apr
(294) |
May
(191) |
Jun
(108) |
Jul
(142) |
Aug
(261) |
Sep
(190) |
Oct
(54) |
Nov
(83) |
Dec
(22) |
| 2016 |
Jan
(49) |
Feb
(89) |
Mar
(33) |
Apr
(50) |
May
(27) |
Jun
(34) |
Jul
(53) |
Aug
(53) |
Sep
(98) |
Oct
(206) |
Nov
(93) |
Dec
(53) |
| 2017 |
Jan
(65) |
Feb
(82) |
Mar
(102) |
Apr
(86) |
May
(187) |
Jun
(67) |
Jul
(23) |
Aug
(93) |
Sep
(65) |
Oct
(45) |
Nov
(35) |
Dec
(17) |
| 2018 |
Jan
(26) |
Feb
(35) |
Mar
(38) |
Apr
(32) |
May
(8) |
Jun
(43) |
Jul
(27) |
Aug
(30) |
Sep
(43) |
Oct
(42) |
Nov
(38) |
Dec
(67) |
| 2019 |
Jan
(32) |
Feb
(37) |
Mar
(53) |
Apr
(64) |
May
(49) |
Jun
(18) |
Jul
(14) |
Aug
(53) |
Sep
(25) |
Oct
(30) |
Nov
(49) |
Dec
(31) |
| 2020 |
Jan
(87) |
Feb
(45) |
Mar
(37) |
Apr
(51) |
May
(99) |
Jun
(36) |
Jul
(11) |
Aug
(14) |
Sep
(20) |
Oct
(24) |
Nov
(40) |
Dec
(23) |
| 2021 |
Jan
(14) |
Feb
(53) |
Mar
(85) |
Apr
(15) |
May
(19) |
Jun
(3) |
Jul
(14) |
Aug
(1) |
Sep
(57) |
Oct
(73) |
Nov
(56) |
Dec
(22) |
| 2022 |
Jan
(3) |
Feb
(22) |
Mar
(6) |
Apr
(55) |
May
(46) |
Jun
(39) |
Jul
(15) |
Aug
(9) |
Sep
(11) |
Oct
(34) |
Nov
(20) |
Dec
(36) |
| 2023 |
Jan
(79) |
Feb
(41) |
Mar
(99) |
Apr
(169) |
May
(48) |
Jun
(16) |
Jul
(16) |
Aug
(57) |
Sep
(19) |
Oct
|
Nov
|
Dec
|
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
|
|
|
1
|
2
(6) |
3
(1) |
4
(1) |
5
|
|
6
|
7
|
8
(1) |
9
|
10
|
11
(4) |
12
(1) |
|
13
|
14
(1) |
15
|
16
|
17
|
18
|
19
|
|
20
|
21
|
22
|
23
|
24
(1) |
25
(4) |
26
(4) |
|
27
(5) |
28
|
29
(2) |
30
|
31
(1) |
|
|
|
From: Philippe W. <phi...@so...> - 2019-01-12 14:38:42
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=d7d8231750da44d90116e00858868ca4065634d9 commit d7d8231750da44d90116e00858868ca4065634d9 Author: Philippe Waroquiers <phi...@sk...> Date: Sat Jan 12 15:08:59 2019 +0100 Fix false positive 'Conditional jump or move' on amd64 64 bits ptracing 32 bits. PTRACE_GET_THREAD_AREA is not handled by amd64 linux syswrap, which leads to false positive errors in 64 bits program ptrace-ing 32 bits processes. For example, the below error was wrongly reported on GDB: ==25377== Conditional jump or move depends on uninitialised value(s) ==25377== at 0x8A1D7EC: td_thr_get_info (td_thr_get_info.c:35) ==25377== by 0x526819: thread_from_lwp(thread_info*, ptid_t) (linux-thread-db.c:417) ==25377== by 0x5281D4: thread_db_notice_clone(ptid_t, ptid_t) (linux-thread-db.c:442) ==25377== by 0x51773B: linux_handle_extended_wait(lwp_info*, int) (linux-nat.c:2027) .... ==25377== Uninitialised value was created by a stack allocation ==25377== at 0x69A360: x86_linux_get_thread_area(int, void*, unsigned int*) (x86-linux-nat.c:278) Fix this by implementing PTRACE_GET|SET_THREAD_AREA on amd64. Diff: --- NEWS | 2 ++ coregrind/m_syswrap/syswrap-amd64-linux.c | 11 +++++++++++ include/vki/vki-amd64-linux.h | 20 ++++++++++++-------- 3 files changed, 25 insertions(+), 8 deletions(-) diff --git a/NEWS b/NEWS index 2d1f2e9..6ff9464 100644 --- a/NEWS +++ b/NEWS @@ -86,6 +86,8 @@ where XXXXXX is the bug number as listed below. 402515 Implement new option --show-error-list=no|yes / -s 402519 POWER 3.0 addex instruction incorrectly implemented +n-i-bz add syswrap for PTRACE_GET|SET_THREAD_AREA on amd64. + Release 3.14.0 (9 October 2018) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/coregrind/m_syswrap/syswrap-amd64-linux.c b/coregrind/m_syswrap/syswrap-amd64-linux.c index 60fb5ff..30e7d0e 100644 --- a/coregrind/m_syswrap/syswrap-amd64-linux.c +++ b/coregrind/m_syswrap/syswrap-amd64-linux.c @@ -322,6 +322,10 @@ PRE(sys_ptrace) PRE_MEM_WRITE( "ptrace(getfpregs)", ARG4, sizeof (struct vki_user_i387_struct)); break; + case VKI_PTRACE_GET_THREAD_AREA: + PRE_MEM_WRITE( "ptrace(get_thread_area)", ARG4, + sizeof(struct vki_user_desc) ); + break; case VKI_PTRACE_SETREGS: PRE_MEM_READ( "ptrace(setregs)", ARG4, sizeof (struct vki_user_regs_struct)); @@ -330,6 +334,10 @@ PRE(sys_ptrace) PRE_MEM_READ( "ptrace(setfpregs)", ARG4, sizeof (struct vki_user_i387_struct)); break; + case VKI_PTRACE_SET_THREAD_AREA: + PRE_MEM_READ( "ptrace(set_thread_area)", ARG4, + sizeof(struct vki_user_desc) ); + break; case VKI_PTRACE_GETEVENTMSG: PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long)); break; @@ -367,6 +375,9 @@ POST(sys_ptrace) case VKI_PTRACE_GETFPREGS: POST_MEM_WRITE( ARG4, sizeof (struct vki_user_i387_struct)); break; + case VKI_PTRACE_GET_THREAD_AREA: + POST_MEM_WRITE( ARG4, sizeof(struct vki_user_desc) ); + break; case VKI_PTRACE_GETEVENTMSG: POST_MEM_WRITE( ARG4, sizeof(unsigned long)); break; diff --git a/include/vki/vki-amd64-linux.h b/include/vki/vki-amd64-linux.h index a506ade..f99dcf8 100644 --- a/include/vki/vki-amd64-linux.h +++ b/include/vki/vki-amd64-linux.h @@ -559,16 +559,15 @@ struct vki_ucontext { #define VKI_ARCH_GET_GS 0x1004 //---------------------------------------------------------------------- -// From linux-2.6.9/include/asm-x86_64/ldt.h +// Originally from linux-2.6.9/include/asm-x86_64/ldt.h //---------------------------------------------------------------------- -// I think this LDT stuff will have to be reinstated for amd64, but I'm not -// certain. (Nb: The sys_arch_prctl seems to have replaced -// [gs]et_thread_area syscalls.) -// // Note that the type here is very slightly different to the -// type for x86 (the final 'lm' field is added); I'm not sure about the -// significance of that... --njn +// type for x86 (the final 'lm' field is added). +/* The explanation is: the final bit is not present in 32 bit code running + on 64 bits kernel. The kernel has to assume this value is 0 whenever + user_desc arrives from a 32-bit program. + See /usr/include/asm/ldt.h. */ /* [[Nb: This is the structure passed to the modify_ldt syscall. Just so as to confuse and annoy everyone, this is _not_ the same as an @@ -579,7 +578,7 @@ struct vki_ucontext { is rather for 32bit. */ struct vki_user_desc { unsigned int entry_number; - unsigned long base_addr; + unsigned int base_addr; unsigned int limit; unsigned int seg_32bit:1; unsigned int contents:2; @@ -683,6 +682,11 @@ struct vki_shminfo64 { #define VKI_PTRACE_GETFPREGS 14 #define VKI_PTRACE_SETFPREGS 15 +// From /usr/include/asm/ptrace-abit.h +/* only useful for access 32bit programs / kernels */ +#define VKI_PTRACE_GET_THREAD_AREA 25 +#define VKI_PTRACE_SET_THREAD_AREA 26 + //---------------------------------------------------------------------- // From linux-2.6.8.1/include/asm-generic/errno.h //---------------------------------------------------------------------- |