Jaidev Shastri 7c75618117 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>

2026-09-21 20:55:04 -07:00

..

blk.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

ftrace.c

pstore/ftrace: Factor KASLR offset in the core kernel instruction addresses

2026-04-10 23:59:41 -07:00

inode.c

pstore/ftrace: Factor KASLR offset in the core kernel instruction addresses

2026-04-10 23:59:41 -07:00

internal.h

pstore/ftrace: Factor KASLR offset in the core kernel instruction addresses

2026-04-10 23:59:41 -07:00

Kconfig

pstore: Replace crypto API compression with zlib_deflate library calls

2023-07-17 16:08:58 -07:00

Makefile

pstore/blk: Introduce backend for block devices

2020-05-30 10:34:03 -07:00

platform.c

pstore: publish big_oops_buf after max_compressed_size

2026-09-21 20:55:04 -07:00

pmsg.c

Merge tag 'pstore-v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2023-04-27 17:03:40 -07:00

ram_core.c

pstore: reject persistent RAM zones too small for the buffer header

2026-09-21 14:37:16 -07:00

ram_internal.h

pstore/ram: Set freed addresses to NULL

2022-10-19 09:25:39 -07:00

ram.c

pstore: don't leave an ERR_PTR in the ramoops zone pointer

2026-09-21 14:37:07 -07:00

zone.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00