forked from Minki/linux
parisc: Report SIGSEGV instead of SIGBUS when running out of stack
When a process runs out of stack the parisc kernel wrongly faults with SIGBUS instead of the expected SIGSEGV signal. This example shows how the kernel faults: do_page_fault() command='a.out' type=15 address=0xfaac2000 in libc-2.24.so[f8308000+16c000] trap #15: Data TLB miss fault, vm_start = 0xfa2c2000, vm_end = 0xfaac2000 The vma->vm_end value is the first address which does not belong to the vma, so adjust the check to include vma->vm_end to the range for which to send the SIGSEGV signal. This patch unbreaks building the debian libsigsegv package. Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de>
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@ -359,7 +359,7 @@ bad_area:
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case 15: /* Data TLB miss fault/Data page fault */
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/* send SIGSEGV when outside of vma */
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if (!vma ||
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address < vma->vm_start || address > vma->vm_end) {
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address < vma->vm_start || address >= vma->vm_end) {
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si.si_signo = SIGSEGV;
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si.si_code = SEGV_MAPERR;
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break;
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