Issues

• paste_tokens() NULL dereference segfaults

  netwide-assembler/nasm#344 · Filter by author newwin01 opened on Nov 13, 2026

• -f bin: heap-buffer-overflow read in bin_read_attribute() when follows=/vfollows= ends the attribute string

  netwide-assembler/nasm#343 · Filter by author newwin01 opened on Nov 13, 2026

• parse_cmdline reads past the end of argv when the last argument is an option missing its value or a response file

  netwide-assembler/nasm#342 · Filter by author ChaoticCross12 opened on Nov 12, 2026

• AVX10.3 and ACEv2 and BMM

  netwide-assembler/nasm#341 · Filter by author ludloff opened on Nov 8, 2026
  1

• Build fails with "error: expected ‘{’ before ‘bool’"

  netwide-assembler/nasm#340 · Filter by author ecm-pushbx opened on Nov 5, 2026

• Certain combinations of extern, global, mmacros, and a call or two in -f obj cause panic or crash on older NASM revisions

  netwide-assembler/nasm#339 · Filter by author ecm-pushbx opened on Nov 5, 2026
  1

• Huge allocation (0x8000000000000001) in assemble.c:953 — incbin offset/length expressions used without range validation

  netwide-assembler/nasm#338 · Filter by author HappyBigBadWolf opened on Nov 4, 2026

• -Z with an unwritable error file causes NULL FILE * dereference

  netwide-assembler/nasm#335 · Filter by author xmoezzz opened on Oct 28, 2026

• %define foo%+bar baz and I got foo=bar baz

  netwide-assembler/nasm#334 · Filter by author xdi8aho opened on Oct 22, 2026
  2

• Fix: write line-table file index as ULEB128 in outelf and outmacho.

  netwide-assembler/nasm#329 · Filter by author ldkeeton opened on Oct 10, 2026

• SUB r32,r32,[Symbol] assembles without error and produces garbage instruction

  netwide-assembler/nasm#328 · Filter by author rransom2-dev opened on Oct 2, 2026
  2

• The documentation is misleading regarding {zu} Setcc ax.

  netwide-assembler/nasm#327 · Filter by author LinuxCoder13 opened on Sep 29, 2026

• Missing vcvtbf162ps instruction

  netwide-assembler/nasm#325 · Filter by author LinuxCoder13 opened on Sep 27, 2026
  1

• Encoding of some FP16 instructions still wrong

  netwide-assembler/nasm#324 · Filter by author MSander-OptiCode opened on Sep 27, 2026
  1

• Comparing two extern labels in an %if doesn't warn, silently returns different

  netwide-assembler/nasm#318 · Filter by author ecm-pushbx opened on Sep 21, 2026
  1

• Possible syntactic sugar for CTEST reg, mem that is missing

  netwide-assembler/nasm#317 · Filter by author LinuxCoder13 opened on Sep 19, 2026
  2

• Bug in CCMP [mem], word imm

  netwide-assembler/nasm#316 · Filter by author LinuxCoder13 opened on Sep 19, 2026

• Possible syntactic sugar for CMOVcc/CFCMOVcc reg, mem, reg that is missing

  netwide-assembler/nasm#315 · Filter by author LinuxCoder13 opened on Sep 19, 2026
  2

• Warn/err on {nf} decorator for RCL/RCR

  netwide-assembler/nasm#314 · Filter by author LinuxCoder13 opened on Sep 19, 2026
  1

• Warn/err on {zu} decorator for SETcc [memory]

  netwide-assembler/nasm#313 · Filter by author LinuxCoder13 opened on Sep 19, 2026
  4

• [Feature request] Add a way to access the most recent base label for local labels

  netwide-assembler/nasm#312 · Filter by author ecm-pushbx opened on Sep 17, 2026
  3

• Out-of-tree builds can fail

  netwide-assembler/nasm#311 · Filter by author rossburton opened on Sep 15, 2026

• Feature request: add a flag to stop at the first error

  netwide-assembler/nasm#310 · Filter by author MIvanchev opened on Sep 13, 2026
  2

• treatment of SEG prefixes by ndisasm

  netwide-assembler/nasm#308 · Filter by author ludloff opened on Sep 1, 2026
  3

• problematic REPE/REPNE handling in ndisasm

  netwide-assembler/nasm#307 · Filter by author ludloff opened on Sep 1, 2026
  2