| 1 | From 61a292adf45405641de1c522a04c148e0a152acd Mon Sep 17 00:00:00 2001 |
| 2 | From: Keith Packard <keithp@keithp.com> |
| 3 | Date: Thu, 9 Oct 2014 15:17:17 +0200 |
| 4 | Subject: glx: check return from __glXGetAnswerBuffer |
| 5 | |
| 6 | This function can return NULL; make sure every caller tests for that. |
| 7 | |
| 8 | Reviewed-by: Adam Jackson <ajax@redhat.com> |
| 9 | Signed-off-by: Keith Packard <keithp@keithp.com> |
| 10 | |
| 11 | diff --git a/glx/indirect_dispatch.c b/glx/indirect_dispatch.c |
| 12 | index 329b2e6..f6cabef 100644 |
| 13 | --- a/glx/indirect_dispatch.c |
| 14 | +++ b/glx/indirect_dispatch.c |
| 15 | @@ -2464,6 +2464,9 @@ __glXDisp_AreTexturesResident(__GLXclientState * cl, GLbyte * pc) |
| 16 | GLboolean answerBuffer[200]; |
| 17 | GLboolean *residences = |
| 18 | __glXGetAnswerBuffer(cl, n, answerBuffer, sizeof(answerBuffer), 1); |
| 19 | + |
| 20 | + if (residences == NULL) |
| 21 | + return BadAlloc; |
| 22 | retval = |
| 23 | glAreTexturesResident(n, (const GLuint *) (pc + 4), residences); |
| 24 | __glXSendReply(cl->client, residences, n, 1, GL_TRUE, retval); |
| 25 | @@ -2488,6 +2491,9 @@ __glXDisp_AreTexturesResidentEXT(__GLXclientState * cl, GLbyte * pc) |
| 26 | GLboolean answerBuffer[200]; |
| 27 | GLboolean *residences = |
| 28 | __glXGetAnswerBuffer(cl, n, answerBuffer, sizeof(answerBuffer), 1); |
| 29 | + |
| 30 | + if (residences == NULL) |
| 31 | + return BadAlloc; |
| 32 | retval = |
| 33 | glAreTexturesResident(n, (const GLuint *) (pc + 4), residences); |
| 34 | __glXSendReply(cl->client, residences, n, 1, GL_TRUE, retval); |
| 35 | @@ -2593,6 +2599,9 @@ __glXDisp_GenTextures(__GLXclientState * cl, GLbyte * pc) |
| 36 | GLuint *textures = |
| 37 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 38 | 4); |
| 39 | + |
| 40 | + if (textures == NULL) |
| 41 | + return BadAlloc; |
| 42 | glGenTextures(n, textures); |
| 43 | __glXSendReply(cl->client, textures, n, 4, GL_TRUE, 0); |
| 44 | error = Success; |
| 45 | @@ -2616,6 +2625,9 @@ __glXDisp_GenTexturesEXT(__GLXclientState * cl, GLbyte * pc) |
| 46 | GLuint *textures = |
| 47 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 48 | 4); |
| 49 | + |
| 50 | + if (textures == NULL) |
| 51 | + return BadAlloc; |
| 52 | glGenTextures(n, textures); |
| 53 | __glXSendReply(cl->client, textures, n, 4, GL_TRUE, 0); |
| 54 | error = Success; |
| 55 | @@ -3883,6 +3895,9 @@ __glXDisp_GenQueries(__GLXclientState * cl, GLbyte * pc) |
| 56 | GLuint *ids = |
| 57 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 58 | 4); |
| 59 | + |
| 60 | + if (ids == NULL) |
| 61 | + return BadAlloc; |
| 62 | GenQueries(n, ids); |
| 63 | __glXSendReply(cl->client, ids, n, 4, GL_TRUE, 0); |
| 64 | error = Success; |
| 65 | @@ -4253,6 +4268,9 @@ __glXDisp_GenProgramsARB(__GLXclientState * cl, GLbyte * pc) |
| 66 | GLuint *programs = |
| 67 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 68 | 4); |
| 69 | + |
| 70 | + if (programs == NULL) |
| 71 | + return BadAlloc; |
| 72 | GenProgramsARB(n, programs); |
| 73 | __glXSendReply(cl->client, programs, n, 4, GL_TRUE, 0); |
| 74 | error = Success; |
| 75 | @@ -4630,6 +4648,10 @@ __glXDisp_GenFramebuffers(__GLXclientState * cl, GLbyte * pc) |
| 76 | GLuint *framebuffers = |
| 77 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 78 | 4); |
| 79 | + |
| 80 | + if (framebuffers == NULL) |
| 81 | + return BadAlloc; |
| 82 | + |
| 83 | GenFramebuffers(n, framebuffers); |
| 84 | __glXSendReply(cl->client, framebuffers, n, 4, GL_TRUE, 0); |
| 85 | error = Success; |
| 86 | @@ -4655,6 +4677,9 @@ __glXDisp_GenRenderbuffers(__GLXclientState * cl, GLbyte * pc) |
| 87 | GLuint *renderbuffers = |
| 88 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 89 | 4); |
| 90 | + |
| 91 | + if (renderbuffers == NULL) |
| 92 | + return BadAlloc; |
| 93 | GenRenderbuffers(n, renderbuffers); |
| 94 | __glXSendReply(cl->client, renderbuffers, n, 4, GL_TRUE, 0); |
| 95 | error = Success; |
| 96 | diff --git a/glx/indirect_dispatch_swap.c b/glx/indirect_dispatch_swap.c |
| 97 | index 647d0c9..c0bb64d 100644 |
| 98 | --- a/glx/indirect_dispatch_swap.c |
| 99 | +++ b/glx/indirect_dispatch_swap.c |
| 100 | @@ -2731,6 +2731,9 @@ __glXDispSwap_AreTexturesResident(__GLXclientState * cl, GLbyte * pc) |
| 101 | GLboolean answerBuffer[200]; |
| 102 | GLboolean *residences = |
| 103 | __glXGetAnswerBuffer(cl, n, answerBuffer, sizeof(answerBuffer), 1); |
| 104 | + |
| 105 | + if (residences == NULL) |
| 106 | + return BadAlloc; |
| 107 | retval = |
| 108 | glAreTexturesResident(n, |
| 109 | (const GLuint *) |
| 110 | @@ -2759,6 +2762,9 @@ __glXDispSwap_AreTexturesResidentEXT(__GLXclientState * cl, GLbyte * pc) |
| 111 | GLboolean answerBuffer[200]; |
| 112 | GLboolean *residences = |
| 113 | __glXGetAnswerBuffer(cl, n, answerBuffer, sizeof(answerBuffer), 1); |
| 114 | + |
| 115 | + if (residences == NULL) |
| 116 | + return BadAlloc; |
| 117 | retval = |
| 118 | glAreTexturesResident(n, |
| 119 | (const GLuint *) |
| 120 | @@ -2878,6 +2884,9 @@ __glXDispSwap_GenTextures(__GLXclientState * cl, GLbyte * pc) |
| 121 | GLuint *textures = |
| 122 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 123 | 4); |
| 124 | + |
| 125 | + if (textures == NULL) |
| 126 | + return BadAlloc; |
| 127 | glGenTextures(n, textures); |
| 128 | (void) bswap_32_array((uint32_t *) textures, n); |
| 129 | __glXSendReplySwap(cl->client, textures, n, 4, GL_TRUE, 0); |
| 130 | @@ -2903,6 +2912,9 @@ __glXDispSwap_GenTexturesEXT(__GLXclientState * cl, GLbyte * pc) |
| 131 | GLuint *textures = |
| 132 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 133 | 4); |
| 134 | + |
| 135 | + if (textures == NULL) |
| 136 | + return BadAlloc; |
| 137 | glGenTextures(n, textures); |
| 138 | (void) bswap_32_array((uint32_t *) textures, n); |
| 139 | __glXSendReplySwap(cl->client, textures, n, 4, GL_TRUE, 0); |
| 140 | @@ -4290,6 +4302,9 @@ __glXDispSwap_GenQueries(__GLXclientState * cl, GLbyte * pc) |
| 141 | GLuint *ids = |
| 142 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 143 | 4); |
| 144 | + if (ids == NULL) |
| 145 | + return BadAlloc; |
| 146 | + |
| 147 | GenQueries(n, ids); |
| 148 | (void) bswap_32_array((uint32_t *) ids, n); |
| 149 | __glXSendReplySwap(cl->client, ids, n, 4, GL_TRUE, 0); |
| 150 | @@ -4697,6 +4712,9 @@ __glXDispSwap_GenProgramsARB(__GLXclientState * cl, GLbyte * pc) |
| 151 | GLuint *programs = |
| 152 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 153 | 4); |
| 154 | + if (programs == NULL) |
| 155 | + return BadAlloc; |
| 156 | + |
| 157 | GenProgramsARB(n, programs); |
| 158 | (void) bswap_32_array((uint32_t *) programs, n); |
| 159 | __glXSendReplySwap(cl->client, programs, n, 4, GL_TRUE, 0); |
| 160 | @@ -5122,6 +5140,10 @@ __glXDispSwap_GenFramebuffers(__GLXclientState * cl, GLbyte * pc) |
| 161 | GLuint *framebuffers = |
| 162 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 163 | 4); |
| 164 | + |
| 165 | + if (framebuffers == NULL) |
| 166 | + return BadAlloc; |
| 167 | + |
| 168 | GenFramebuffers(n, framebuffers); |
| 169 | (void) bswap_32_array((uint32_t *) framebuffers, n); |
| 170 | __glXSendReplySwap(cl->client, framebuffers, n, 4, GL_TRUE, 0); |
| 171 | @@ -5149,6 +5171,10 @@ __glXDispSwap_GenRenderbuffers(__GLXclientState * cl, GLbyte * pc) |
| 172 | GLuint *renderbuffers = |
| 173 | __glXGetAnswerBuffer(cl, n * 4, answerBuffer, sizeof(answerBuffer), |
| 174 | 4); |
| 175 | + |
| 176 | + if (renderbuffers == NULL) |
| 177 | + return BadAlloc; |
| 178 | + |
| 179 | GenRenderbuffers(n, renderbuffers); |
| 180 | (void) bswap_32_array((uint32_t *) renderbuffers, n); |
| 181 | __glXSendReplySwap(cl->client, renderbuffers, n, 4, GL_TRUE, 0); |
| 182 | -- |
| 183 | cgit v0.10.2 |
| 184 | |