Commit Graph

4 Commits

Author SHA1 Message Date
吴佳浩Alben 074768901f fix(pwndbg): separate the words in the debugger-context limit message (#5372)
The 64 MiB reply-budget refusal rendered as "exceeds64 MiB" because the
message word and the limit were joined. The pwntools sibling names the
same budget as "exceeds the 64 MiB reply budget"; use that wording.

The output-limit path had no producer regression, so the pwndbg suite
gains one that drives the real 64 MiB boundary, and the suite is now part
of test:python instead of running only when invoked by hand.

Co-authored-by: XiaoBinGan <XiaoBinGan@users.noreply.github.com>
2026-10-20 16:12:55 +08:00
morluto b33c0df02e fix(pwndbg): reject core mapping paths that escape sysroot
Interpret source-bound ELF64 NT_FILE descriptors once before debugger
launch. Bound counts and pathname coverage by the descriptor, retain exact
path bytes, and refuse relative names or dot segments rather than letting
GDB resolve them against the host. Pin GDB's pathname semantics to Unix.

Preserve the decoded partial observation on refusal, basic-only recovery,
and pre-admission cancellation. Share an exact mapping fixture and replace
the old fixture boolean modes with explicit report producers.

Validation: final series has 33 passing Vitest cases plus five Python
producer controls; 38 Linux x64 provider cases are explicitly skipped on
macOS. Typecheck/lint, docs checks and test discovery pass. Real GDB16.3
and strace reproduce the relative-path escape using only an owned fixture;
compiled admission admits a real absolute-path core and refuses that
relative-path core. Full native pwndbg / Linux x64 remain unverified here.
Task token, CPU and peak-family-memory costs are unmeasured; no speed claim.

Fixes #4942
2026-10-18 10:27:37 +08:00
morluto 5bf4fffc1b fix(pwndbg): prevent core-triggered executable discovery
Occupy GDB's executable slot with its owned /proc/self/exe while loading a
core, then discard it before mapping queries. Select the validated decoder
architecture explicitly and restrict build-ID lookup to the owned empty path.
Preserve cancellation reasons at debugger admission.

Keep the original fixture executable present during syscall verification and
add Debian 13 / GDB 16 coverage alongside Ubuntu 24.04 in the CI definition.

Validation: controlled producer regressions and request-profile controls;
real GDB 16.3 / strace on Linux arm64 shows the old bridge opening the
recorded executable and the fix returning the same mapping without that
access. A cross-architecture gdb-multiarch probe confirms profile selection.
The plugin was controlled; full native pwndbg and Linux x64 remain unverified.
No performance improvement claimed; task tokens/CPU/family memory unmeasured.

Fixes #4914
2026-10-18 10:26:42 +08:00
Ysopwnable 163ee09a74 feat(native): inspect recorded crashes through pwntools and pwndbg (#1054)
* feat(native): inspect recorded crashes through pwntools and pwndbg

* fix(native): bind core note semantics to raw owner bytes

* fix(native): validate recorded core ABI and evidence scalars

* fix(native): require complete recorded note interpretations

* fix(native): bind physical core notes to original headers
2026-10-08 16:50:31 +08:00