[Bug binutils/26623] New: buffer overflow in ppc_symbol_is_valid

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=26623

            Bug ID: 26623
           Summary: buffer overflow in ppc_symbol_is_valid
           Product: binutils
           Version: 2.36 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: amodra at gmail dot com
  Target Milestone: ---

When running the ld testsuite

/home/alan/build/gas-san32/powerpc64le-linux/ld/../binutils/objdump -dr
tmpdir/tls
=================================================================
==25161==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xf4700f45 at
pc 0x569e889a bp 0xffd46108 sp 0xffd460f8
READ of size 1 at 0xf4700f45 thread T0
    #0 0x569e8899 in ppc_symbol_is_valid
/home/alan/src/binutils-gdb/opcodes/ppc-dis.c:416
    #1 0x5691c709 in sym_ok /home/alan/src/binutils-gdb/binutils/objdump.c:1104
    #2 0x5691c709 in find_symbol_for_address
/home/alan/src/binutils-gdb/binutils/objdump.c:1179
...
FAIL: TLS static exec

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