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| author | Alexei Starovoitov <ast@kernel.org> | 2026-06-22 17:11:47 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-06-22 17:11:47 -0700 |
| commit | 274b4027d8b36c8b5ec61b7c7f0a7d9cda07b9a5 (patch) | |
| tree | 5322db63dbd9c4669c1906c86b294f0ed3f00970 /mm/tests/git@git.tavy.me:linux.git | |
| parent | 6a8e9b4f1f416df33f32e124f26e41bdc5a32c27 (diff) | |
| parent | 644332f48fc22995d056a3c6ca04dac64a74457b (diff) | |
Merge branch 'fix-stale-register-bounds-on-lsm-retval-context-load'
Tristan Madani says:
====================
Fix stale register bounds on LSM retval context load
From: Tristan Madani <tristan@talencesecurity.com>
check_mem_access() calls __mark_reg_s32_range() to narrow a register to
the LSM hook retval range, but the intersection preserves stale bounds
from prior instructions. Add mark_reg_unknown() before narrowing (same
pattern as the else branch) and a selftest that catches the mismatch.
Changes in v3:
- Add selftest demonstrating the issue (Eduard Zingerman)
- No code change in patch 1 from v2
====================
Link: https://patch.msgid.link/20260622230123.3695446-1-tristmd@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'mm/tests/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions