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qemu-android / qemu-android / 081501daceca74d2091e798d5dcd342c14d66d1a
commit081501daceca74d2091e798d5dcd342c14d66d1a[log] [tgz]
authoraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>Sun Mar 29 01:31:51 2009 +0000
committeraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>Sun Mar 29 01:31:51 2009 +0000
tree7e34dccda32b400869ea44ba7cb1be1ec6c1e0c4
parent999dec57f6c7d75176f981d4b5e4df8c30c1c723 [diff]
check for bs->drv in bdrv_flush (Christoph Hellwig)

All the bdrv_ helpers should check for bs->drv being zero as that means
there is no backend image open.  bdrv_flush fails to perform that check
and can thus cause NULL pointer dereferences.

Found using qemu-io.


Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6943 c046a42c-6fe2-441c-8c8c-71466251a162
1 file changed
tree: 7e34dccda32b400869ea44ba7cb1be1ec6c1e0c4
  1. audio/
  2. bsd-user/
  3. darwin-user/
  4. fpu/
  5. gdb-xml/
  6. hw/
  7. keymaps/
  8. linux-user/
  9. pc-bios/
  10. slirp/
  11. target-alpha/
  12. target-arm/
  13. target-cris/
  14. target-i386/
  15. target-m68k/
  16. target-mips/
  17. target-ppc/
  18. target-sh4/
  19. target-sparc/
  20. tcg/
  21. tests/
  22. .gitignore
  23. a.out.h
  24. acl.c
  25. acl.h
  26. aes.c
  27. aes.h
  28. aio.c
  29. alpha-dis.c
  30. alpha.ld
  31. arm-dis.c
  32. arm-semi.c
  33. arm.ld
  34. balloon.h
  35. block-bochs.c
  36. block-cloop.c
  37. block-cow.c
  38. block-dmg.c
  39. block-nbd.c
  40. block-parallels.c
  41. block-qcow.c
  42. block-qcow2.c
  43. block-raw-posix.c
  44. block-raw-win32.c
  45. block-vmdk.c
  46. block-vpc.c
  47. block-vvfat.c
  48. block.c
  49. block.h
  50. block_int.h
  51. bswap.h
  52. bt-host.c
  53. bt-host.h
  54. bt-vhci.c
  55. buffered_file.c
  56. buffered_file.h
  57. cache-utils.c
  58. cache-utils.h
  59. Changelog
  60. cocoa.m
  61. configure
  62. console.c
  63. console.h
  64. COPYING
  65. COPYING.LIB
  66. cpu-all.h
  67. cpu-defs.h
  68. cpu-exec.c
  69. cris-dis.c
  70. curses.c
  71. curses_keys.h
  72. cutils.c
  73. d3des.c
  74. d3des.h
  75. def-helper.h
  76. device_tree.c
  77. device_tree.h
  78. dis-asm.h
  79. disas.c
  80. disas.h
  81. dma-helpers.c
  82. dma.h
  83. dyngen-exec.h
  84. elf.h
  85. elf_ops.h
  86. exec-all.h
  87. exec.c
  88. feature_to_c.sh
  89. gdbstub.c
  90. gdbstub.h
  91. gen-icount.h
  92. host-utils.c
  93. host-utils.h
  94. hostregs_helper.h
  95. hpet.h
  96. hppa-dis.c
  97. hppa.ld
  98. hxtool
  99. i386-dis.c
  100. i386.ld
  101. ia64.ld
  102. keymaps.c
  103. keymaps.h
  104. kqemu.c
  105. kqemu.h
  106. kvm-all.c
  107. kvm.h
  108. libfdt_env.h
  109. LICENSE
  110. loader.c
  111. m68k-dis.c
  112. m68k-semi.c
  113. m68k.ld
  114. MAINTAINERS
  115. Makefile
  116. Makefile.target
  117. migration-exec.c
  118. migration-tcp.c
  119. migration.c
  120. migration.h
  121. mips-dis.c
  122. mips.ld
  123. mipsel.ld
  124. monitor.c
  125. monitor.h
  126. nbd.c
  127. nbd.h
  128. net-checksum.c
  129. net.c
  130. net.h
  131. osdep.c
  132. osdep.h
  133. pci-ids.txt
  134. posix-aio-compat.c
  135. posix-aio-compat.h
  136. ppc-dis.c
  137. ppc.ld
  138. ppc64.ld
  139. qemu-aio.h
  140. qemu-binfmt-conf.sh
  141. qemu-char.c
  142. qemu-char.h
  143. qemu-common.h
  144. qemu-doc.texi
  145. qemu-img.c
  146. qemu-img.texi
  147. qemu-lock.h
  148. qemu-log.h
  149. qemu-malloc.c
  150. qemu-nbd.c
  151. qemu-nbd.texi
  152. qemu-options.hx
  153. qemu-sockets.c
  154. qemu-tech.texi
  155. qemu-timer.h
  156. qemu-tool.c
  157. qemu.sasl
  158. qemu_socket.h
  159. readline.c
  160. readline.h
  161. README
  162. rules.mak
  163. s390-dis.c
  164. s390.ld
  165. savevm.c
  166. sdl.c
  167. sdl_keysym.h
  168. sh4-dis.c
  169. softmmu-semi.h
  170. softmmu_defs.h
  171. softmmu_exec.h
  172. softmmu_header.h
  173. softmmu_template.h
  174. sparc-dis.c
  175. sparc.ld
  176. sparc64.ld
  177. sys-queue.h
  178. sysemu.h
  179. tap-win32.c
  180. texi2pod.pl
  181. thunk.c
  182. thunk.h
  183. TODO
  184. translate-all.c
  185. uboot_image.h
  186. usb-bsd.c
  187. usb-linux.c
  188. usb-stub.c
  189. VERSION
  190. vgafont.h
  191. vl.c
  192. vnc-auth-sasl.c
  193. vnc-auth-sasl.h
  194. vnc-auth-vencrypt.c
  195. vnc-auth-vencrypt.h
  196. vnc-tls.c
  197. vnc-tls.h
  198. vnc.c
  199. vnc.h
  200. vnc_keysym.h
  201. vnchextile.h
  202. x86_64.ld
  203. x_keymap.c
  204. x_keymap.h