diff options
| author | Jaidev Shastri <jaidevshastri@vt.edu> | 2026-09-21 21:16:54 -0400 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-21 20:55:04 -0700 |
| commit | 7c756181175d50200be487affa905e973f6cbaf5 (patch) | |
| tree | f70128673ab471e18326de3230975834c59f9722 /tools/lib/python | |
| parent | 1b30df8662ac85a6759be4332f3bec7e3cb28efc (diff) | |
| download | linux-next-7c756181175d50200be487affa905e973f6cbaf5.tar.gz linux-next-7c756181175d50200be487affa905e973f6cbaf5.zip | |
pstore: publish big_oops_buf after max_compressed_size
allocate_buf_for_compression() stores big_oops_buf and then
max_compressed_size, both with plain stores. pstore_dump() runs from
kmsg_dump on any CPU, tests big_oops_buf without psinfo_lock and then
reads max_compressed_size.
Store the size first and publish the buffer with smp_store_release(),
paired with smp_load_acquire() in pstore_dump().
Found with MBCheck, a static herd7-based memory consistency checker.
Signed-off-by: Jaidev Shastri <jaidevshastri@vt.edu>
Link: https://patch.msgid.link/20260921-mb-pstore-v1-1-46f9a6129d58@vt.edu
Signed-off-by: Kees Cook <kees@kernel.org>
Diffstat (limited to 'tools/lib/python')
0 files changed, 0 insertions, 0 deletions