)]}'
{
  "log": [
    {
      "commit": "831830b5a2b5d413407adf380ef62fe17d6fcbf2",
      "tree": "b08f54f15374b5b98b0b3bea20a1d2ea8d1f50e0",
      "parents": [
        "ac40532ef0b8649e6f7f83859ea0de1c4ed08a19"
      ],
      "author": {
        "name": "Al Viro",
        "email": "viro@ZenIV.linux.org.uk",
        "time": "Wed Jan 02 14:09:57 2008 +0000"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Jan 02 13:13:27 2008 -0800"
      },
      "message": "restrict reading from /proc/\u003cpid\u003e/maps to those who share -\u003emm or can ptrace pid\n\nContents of /proc/*/maps is sensitive and may become sensitive after\nopen() (e.g.  if target originally shares our -\u003emm and later does exec\non suid-root binary).\n\nCheck at read() (actually, -\u003estart() of iterator) time that mm_struct\nwe\u0027d grabbed and locked is\n - still the -\u003emm of target\n - equal to reader\u0027s -\u003emm or the target is ptracable by reader.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f284ce7269031947326bac6bb19a977705276222",
      "tree": "8b145d42d4da182fb185dacc53b24ca7a2546114",
      "parents": [
        "7664732315c97f48dba9d1e7339ad16fc5a320ac"
      ],
      "author": {
        "name": "Alexey Dobriyan",
        "email": "adobriyan@gmail.com",
        "time": "Tue Jul 17 04:03:44 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Jul 17 10:23:03 2007 -0700"
      },
      "message": "PTRACE_POKEDATA consolidation\n\nIdentical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata()\nfunction.\n\nAFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless\nreturn EPERM.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "7664732315c97f48dba9d1e7339ad16fc5a320ac",
      "tree": "1eb9639b0fbe3f24341cecf1dafcae192cb7bde7",
      "parents": [
        "bcdcd8e725b923ad7c0de809680d5d5658a7bf8c"
      ],
      "author": {
        "name": "Alexey Dobriyan",
        "email": "adobriyan@gmail.com",
        "time": "Tue Jul 17 04:03:43 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Jul 17 10:23:03 2007 -0700"
      },
      "message": "PTRACE_PEEKDATA consolidation\n\nIdentical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata()\nfunction.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "416bc51292f977b43b010c6dd937522b90062390",
      "tree": "012c8df7f762fedb8a2bcd027fa3e8a228bc49d0",
      "parents": [
        "cf3e43dbe0cc4a7ee7f6ab1bb5231dcfda164e02"
      ],
      "author": {
        "name": "Roland McGrath",
        "email": "roland@redhat.com",
        "time": "Fri Sep 29 02:00:45 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Sep 29 09:18:16 2006 -0700"
      },
      "message": "[PATCH] Use decimal for PTRACE_ATTACH and PTRACE_DETACH.\n\nIt is sure confusing that linux/ptrace.h has:\n\t#define PTRACE_SINGLESTEP\t   9\n\t#define PTRACE_ATTACH\t\t0x10\n\t#define PTRACE_DETACH\t\t0x11\n\t#define PTRACE_SYSCALL\t\t  24\nAll the low-numbered constants are in decimal, but the last two in hex.\nIt sure makes it likely that someone will look at this and think that\n9, 10, 11 are used, and that 16 and 17 are not used.\n\nHow about we use the same notation for all the numbers [0,24] in the\nsame short list?\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "d5f70c00ad24cd1158d3678b44ff969b4c971d49",
      "tree": "b4b71a71b413250fb24cb2d83cbbfd7507da9efc",
      "parents": [
        "281de339ceb822ca6c04d4373ecb9a45c1890ce4"
      ],
      "author": {
        "name": "Oleg Nesterov",
        "email": "oleg@tv-sign.ru",
        "time": "Mon Jun 26 00:26:07 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Jun 26 09:58:27 2006 -0700"
      },
      "message": "[PATCH] coredump: kill ptrace related stuff\n\nWith this patch zap_process() sets SIGNAL_GROUP_EXIT while sending SIGKILL to\nthe thread group.  This means that a TASK_TRACED task\n\n\t1. Will be awakened by signal_wake_up(1)\n\n\t2. Can\u0027t sleep again via ptrace_notify()\n\n\t3. Can\u0027t go to do_signal_stop() after return\n\t   from ptrace_stop() in get_signal_to_deliver()\n\nSo we can remove all ptrace related stuff from coredump path.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "260ea1013283d8acbb451459ed1ca560c1445c20",
      "tree": "35819d28dbfa8600ac0de336147323e660b0390c",
      "parents": [
        "4a4b69f79ba7286794765a856349e380f984a6cb"
      ],
      "author": {
        "name": "Eric W. Biederman",
        "email": "ebiederm@xmission.com",
        "time": "Fri Jun 23 02:05:18 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Jun 23 07:43:03 2006 -0700"
      },
      "message": "[PATCH] ptrace: document the locking rules\n\nAfter a lot of reading the code and thinking about how it behaves I have\nmanaged to figure out what the current ptrace locking rules are.  The\ncurrent code is in much better that it appears at first glance.  The\ntroublesome code paths are actually the code paths that violate the current\nrules.\n\nptrace uses simple exclusive access as it\u0027s locking.  You can only touch\ntask-\u003eptrace if the task is stopped and you are the ptracer, or if the task\nis running and are the task itself.\n\nVery simple, very easy to maintain.  It just needs to be documented so\npeople know not to touch ptrace from elsewhere.\n\nCurrently we do have a few pieces of code that are in violation of this\nrule.  Particularly the core dump code, and ptrace_attach.  But so far the\ncode looks fixable.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "5ecfbae093f0c37311e89b29bfc0c9d586eace87",
      "tree": "eabd0a145af64e26c900578c95175ab313828661",
      "parents": [
        "dadac81b1b86196fcc48fb87620403c4a7174f06"
      ],
      "author": {
        "name": "Oleg Nesterov",
        "email": "oleg@tv-sign.ru",
        "time": "Wed Feb 15 22:50:10 2006 +0300"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Feb 15 11:05:43 2006 -0800"
      },
      "message": "[PATCH] fix zap_thread\u0027s ptrace related problems\n\n1. The tracee can go from ptrace_stop() to do_signal_stop()\n   after __ptrace_unlink(p).\n\n2. It is unsafe to __ptrace_unlink(p) while p-\u003eparent may wait\n   for tasklist_lock in ptrace_detach().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "a12dea7af93ae83bd868c0dc09367090ead7cc1e",
      "tree": "90220072dddc951f75ecbcb9b442b8b8a9b774f7",
      "parents": [
        "eb46996f90a0826921f1a0d81535537a9c7f91b0"
      ],
      "author": {
        "name": "Paolo \u0027Blaisorblade\u0027 Giarrusso",
        "email": "blaisorblade@yahoo.it",
        "time": "Sun Jan 08 01:04:49 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Jan 08 20:14:04 2006 -0800"
      },
      "message": "[PATCH] PTRACE_SYSEMU is only for i386 and clashes with other ptrace codes of other archs\n\nPTRACE_SYSEMU{,_SINGLESTEP} is actually arch specific, for now, and the\ncurrent allocated number clashes with a ptrace code of frv, i.e.\nPTRACE_GETFDPIC.  I should have submitted this much earlier, anyway we get no\nbreakage for this.\n\nCC: Daniel Jacobowitz \u003cdan@debian.org\u003e\nSigned-off-by: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "6b9c7ed84837753a436415097063232422e29a35",
      "tree": "6ad59a7bebcec359e08b3a211701781db819450d",
      "parents": [
        "6b34350f490b2c8508717541ec1fd2bbaadded94"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Sun Jan 08 01:02:33 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sun Jan 08 20:13:51 2006 -0800"
      },
      "message": "[PATCH] use ptrace_get_task_struct in various places\n\nThe ptrace_get_task_struct() helper that I added as part of the ptrace\nconsolidation is useful in variety of places that currently opencode it.\nSwitch them to the common helpers.\n\nAdd a ptrace_traceme() helper that needs to be explicitly called, and simplify\nthe ptrace_get_task_struct() interface.  We don\u0027t need the request argument\nnow, and we return the task_struct directly, using ERR_PTR() for error\nreturns.  It\u0027s a bit more code in the callers, but we have two sane routines\nthat do one thing well now.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "481bed454247538e9f57d4ea37b153ccba24ba7b",
      "tree": "bb4198296962c08dbf52e8f377dc27206f621640",
      "parents": [
        "db73e9aa99bf093427b79877f9475392724fd5e5"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Mon Nov 07 00:59:47 2005 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Mon Nov 07 07:53:42 2005 -0800"
      },
      "message": "[PATCH] consolidate sys_ptrace()\n\nThe sys_ptrace boilerplate code (everything outside the big switch\nstatement for the arch-specific requests) is shared by most architectures.\nThis patch moves it to kernel/ptrace.c and leaves the arch-specific code as\narch_ptrace.\n\nSome architectures have a too different ptrace so we have to exclude them.\nThey continue to keep their implementations.  For sh64 I had to add a\nsh64_ptrace wrapper because it does some initialization on the first call.\nFor um I removed an ifdefed SUBARCH_PTRACE_SPECIAL block, but\nSUBARCH_PTRACE_SPECIAL isn\u0027t defined anywhere in the tree.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nAcked-By: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "ab8d11beb46f0bd0617e04205c01f5c1fe845b61",
      "tree": "33b5aa5b63268b8f4d1428d74547fd351bb37113",
      "parents": [
        "5e21ccb136047e556acf0fdf227cab5db05c1c25"
      ],
      "author": {
        "name": "Miklos Szeredi",
        "email": "miklos@szeredi.hu",
        "time": "Tue Sep 06 15:18:24 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Sep 07 16:57:43 2005 -0700"
      },
      "message": "[PATCH] remove duplicated code from proc and ptrace\n\nExtract common code used by ptrace_attach() and may_ptrace_attach()\ninto a separate function.\n\nSigned-off-by: Miklos Szeredi \u003cmiklos@szeredi.hu\u003e\nCc: \u003cviro@parcelfarce.linux.theplanet.co.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "1b38f0064e4e0b9ec626e39f0740b1cf2e295743",
      "tree": "b5e3af88b23bd47d91c4745a3e0c61512f58ff21",
      "parents": [
        "c8c86cecd1d1a2722acb28a01d1babf7b6993697"
      ],
      "author": {
        "name": "Bodo Stroesser",
        "email": "bstroesser@fujitsu-siemens.com",
        "time": "Sat Sep 03 15:57:20 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@evo.osdl.org",
        "time": "Mon Sep 05 00:06:20 2005 -0700"
      },
      "message": "[PATCH] Uml support: add PTRACE_SYSEMU_SINGLESTEP option to i386\n\nThis patch implements the new ptrace option PTRACE_SYSEMU_SINGLESTEP, which\ncan be used by UML to singlestep a process: it will receive SINGLESTEP\ninterceptions for normal instructions and syscalls, but syscall execution will\nbe skipped just like with PTRACE_SYSEMU.\n\nSigned-off-by: Bodo Stroesser \u003cbstroesser@fujitsu-siemens.com\u003e\nSigned-off-by: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "ed75e8d58010fdc06e2c3a81bfbebae92314c7e3",
      "tree": "3f6f8dc5a34c9e03f613d4b907e02802ab075a9e",
      "parents": [
        "94c80b2598dbd2b8a6fe5f5c2c3af1beb37f66c7"
      ],
      "author": {
        "name": "Laurent Vivier",
        "email": "LaurentVivier@wanadoo.fr",
        "time": "Sat Sep 03 15:57:18 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@evo.osdl.org",
        "time": "Mon Sep 05 00:06:20 2005 -0700"
      },
      "message": "[PATCH] UML Support - Ptrace: adds the host SYSEMU support, for UML and general usage\n\n      Jeff Dike \u003cjdike@addtoit.com\u003e,\n      Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade_spam@yahoo.it\u003e,\n      Bodo Stroesser \u003cbstroesser@fujitsu-siemens.com\u003e\n\nAdds a new ptrace(2) mode, called PTRACE_SYSEMU, resembling PTRACE_SYSCALL\nexcept that the kernel does not execute the requested syscall; this is useful\nto improve performance for virtual environments, like UML, which want to run\nthe syscall on their own.\n\nIn fact, using PTRACE_SYSCALL means stopping child execution twice, on entry\nand on exit, and each time you also have two context switches; with SYSEMU you\navoid the 2nd stop and so save two context switches per syscall.\n\nAlso, some architectures don\u0027t have support in the host for changing the\nsyscall number via ptrace(), which is currently needed to skip syscall\nexecution (UML turns any syscall into getpid() to avoid it being executed on\nthe host).  Fixing that is hard, while SYSEMU is easier to implement.\n\n* This version of the patch includes some suggestions of Jeff Dike to avoid\n  adding any instructions to the syscall fast path, plus some other little\n  changes, by myself, to make it work even when the syscall is executed with\n  SYSENTER (but I\u0027m unsure about them). It has been widely tested for quite a\n  lot of time.\n\n* Various fixed were included to handle the various switches between\n  various states, i.e. when for instance a syscall entry is traced with one of\n  PT_SYSCALL / _SYSEMU / _SINGLESTEP and another one is used on exit.\n  Basically, this is done by remembering which one of them was used even after\n  the call to ptrace_notify().\n\n* We\u0027re combining TIF_SYSCALL_EMU with TIF_SYSCALL_TRACE or TIF_SINGLESTEP\n  to make do_syscall_trace() notice that the current syscall was started with\n  SYSEMU on entry, so that no notification ought to be done in the exit path;\n  this is a bit of a hack, so this problem is solved in another way in next\n  patches.\n\n* Also, the effects of the patch:\n\"Ptrace - i386: fix Syscall Audit interaction with singlestep\"\nare cancelled; they are restored back in the last patch of this series.\n\nDetailed descriptions of the patches doing this kind of processing follow (but\nI\u0027ve already summed everything up).\n\n* Fix behaviour when changing interception kind #1.\n\n  In do_syscall_trace(), we check the status of the TIF_SYSCALL_EMU flag\n  only after doing the debugger notification; but the debugger might have\n  changed the status of this flag because he continued execution with\n  PTRACE_SYSCALL, so this is wrong.  This patch fixes it by saving the flag\n  status before calling ptrace_notify().\n\n* Fix behaviour when changing interception kind #2:\n  avoid intercepting syscall on return when using SYSCALL again.\n\n  A guest process switching from using PTRACE_SYSEMU to PTRACE_SYSCALL\n  crashes.\n\n  The problem is in arch/i386/kernel/entry.S.  The current SYSEMU patch\n  inhibits the syscall-handler to be called, but does not prevent\n  do_syscall_trace() to be called after this for syscall completion\n  interception.\n\n  The appended patch fixes this.  It reuses the flag TIF_SYSCALL_EMU to\n  remember \"we come from PTRACE_SYSEMU and now are in PTRACE_SYSCALL\", since\n  the flag is unused in the depicted situation.\n\n* Fix behaviour when changing interception kind #3:\n  avoid intercepting syscall on return when using SINGLESTEP.\n\n  When testing 2.6.9 and the skas3.v6 patch, with my latest patch and had\n  problems with singlestepping on UML in SKAS with SYSEMU.  It looped\n  receiving SIGTRAPs without moving forward.  EIP of the traced process was\n  the same for all SIGTRAPs.\n\nWhat\u0027s missing is to handle switching from PTRACE_SYSCALL_EMU to\nPTRACE_SINGLESTEP in a way very similar to what is done for the change from\nPTRACE_SYSCALL_EMU to PTRACE_SYSCALL_TRACE.\n\nI.e., after calling ptrace(PTRACE_SYSEMU), on the return path, the debugger is\nnotified and then wake ups the process; the syscall is executed (or skipped,\nwhen do_syscall_trace() returns 0, i.e.  when using PTRACE_SYSEMU), and\ndo_syscall_trace() is called again.  Since we are on the return path of a\nSYSEMU\u0027d syscall, if the wake up is performed through ptrace(PTRACE_SYSCALL),\nwe must still avoid notifying the parent of the syscall exit.  Now, this\nbehaviour is extended even to resuming with PTRACE_SINGLESTEP.\n\nSigned-off-by: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
      "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d",
      "parents": [],
      "author": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Sat Apr 16 15:20:36 2005 -0700"
      },
      "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n"
    }
  ]
}