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65 lines
2.0 KiB
65 lines
2.0 KiB
BASH PATCH REPORT |
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================= |
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Bash-Release: 4.2 |
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Patch-ID: bash42-043 |
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Bug-Reported-by: konsolebox <konsolebox@gmail.com> |
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Bug-Reference-ID: <CAJnmqwZuGKLgMsMwxRK4LL+2NN+HgvmKzrnode99QBGrcgX1Lw@mail.gmail.com> |
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2013-01/msg00138.html |
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Bug-Description: |
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When SIGCHLD is trapped, and a SIGCHLD trap handler runs when a pending |
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`read -t' invocation times out and generates SIGALRM, bash can crash with |
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a segmentation fault. |
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Patch (apply with `patch -p0'): |
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*** ../bash-4.2-patched/builtins/read.def 2012-10-31 21:22:51.000517000 -0400 |
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--- builtins/read.def 2013-01-25 10:28:16.000038000 -0500 |
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*************** |
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*** 386,393 **** |
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/* Tricky. The top of the unwind-protect stack is the free of |
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input_string. We want to run all the rest and use input_string, |
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! so we have to remove it from the stack. */ |
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! remove_unwind_protect (); |
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! run_unwind_frame ("read_builtin"); |
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input_string[i] = '\0'; /* make sure it's terminated */ |
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retval = 128+SIGALRM; |
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goto assign_vars; |
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--- 386,403 ---- |
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/* Tricky. The top of the unwind-protect stack is the free of |
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input_string. We want to run all the rest and use input_string, |
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! so we have to save input_string temporarily, run the unwind- |
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! protects, then restore input_string so we can use it later. */ |
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! |
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input_string[i] = '\0'; /* make sure it's terminated */ |
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+ if (i == 0) |
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+ { |
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+ t = (char *)xmalloc (1); |
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+ t[0] = 0; |
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+ } |
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+ else |
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+ t = savestring (input_string); |
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+ |
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+ run_unwind_frame ("read_builtin"); |
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+ input_string = t; |
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retval = 128+SIGALRM; |
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goto assign_vars; |
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*** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010 |
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--- patchlevel.h Thu Feb 24 21:41:34 2011 |
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*************** |
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*** 26,30 **** |
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looks for to find the patch level (for the sccs version string). */ |
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! #define PATCHLEVEL 42 |
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#endif /* _PATCHLEVEL_H_ */ |
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--- 26,30 ---- |
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looks for to find the patch level (for the sccs version string). */ |
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! #define PATCHLEVEL 43 |
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#endif /* _PATCHLEVEL_H_ */
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