[GIT PULL] Landlock fix for v7.3-rc3
From: Mickaël Salaün <mic@digikod.net>
Date: 2026-09-09 15:31:40
Hi,
This PR fixes an UAF and a lockdep assert NULL dereferencing, and it
properly truncates too-long strings printed by a Landlock tracepoint.
Most of the changes are brought by new tests.
Please pull these changes for v7.3-rc3 . These commits have been tested
in the latest linux-next releases and merge cleanly with your master
branch.
Test coverage for security/landlock is 91.6% of 2574 lines according to
LLVM 22, and it was 91.5% of 2571 lines before this PR.
Regards,
Mickaël
--
The following changes since commit df2908090cda368b01ff43709f51890076c56157:
Linux 7.3-rc2 (2026-09-06 15:07:20 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git tags/landlock-7.3-rc3
for you to fetch changes up to d41d0021a6ea3e9fcd14126a00fead47f981c46e:
landlock: Test trace path output boundaries (2026-09-08 11:49:39 +0200)
----------------------------------------------------------------
Landlock fix for v7.3-rc3
----------------------------------------------------------------
Mickaël Salaün (4):
selftests/landlock: Test abstract socket trace name limits
landlock: Clean up ruleset validation checks
landlock: Bound escaped trace path output
landlock: Test trace path output boundaries
Norbert Szetei (1):
landlock: Fix use-after-free of the source's parent directory
include/trace/events/landlock.h | 70 ++++++--
security/landlock/.kunitconfig | 2 +
security/landlock/domain.c | 3 +-
security/landlock/fs.c | 18 +-
security/landlock/ruleset.c | 2 +-
security/landlock/trace.c | 182 +++++++++++++++++++++
.../selftests/landlock/scoped_abstract_unix_test.c | 76 ++++++---
tools/testing/selftests/landlock/trace_fs_test.c | 160 ++++++++++++++++++
8 files changed, 466 insertions(+), 47 deletions(-)