Kees Cook 6c22e4aea4 pstore/ram: Avoid NULL deref in ftrace merging failure path ... [ Upstream commit 8665569e97 ] Given corruption in the ftrace records, it might be possible to allocate tmp_prz without assigning prz to it, but still marking it as needing to be freed, which would cause at least a NULL dereference. smatch warnings: fs/pstore/ram.c:340 ramoops_pstore_read() error: we previously assumed 'prz' could be null (see line 255) https://lists.01.org/pipermail/kbuild-all/2018-December/055528.html Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 2fbea82bbb ("pstore: Merge per-CPU ftrace records into one") Cc: "Joel Fernandes (Google)" <joel@joelfernandes.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-12-17 20:38:34 +01:00
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Kconfig	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ftrace.c	pstore: Remove write_buf() callback	2017-03-07 14:01:02 -08:00
inode.c	Revert "pstore: Honor dmesg_restrict sysctl on dmesg dumps"	2017-08-17 16:29:19 -07:00
internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
platform.c	pstore/ram: Run without kernel crash dump region	2019-06-11 12:21:48 +02:00
pmsg.c	pstore: Create common record initializer	2017-05-31 10:13:44 -07:00
ram.c	pstore/ram: Avoid NULL deref in ftrace merging failure path	2019-12-17 20:38:34 +01:00
ram_core.c	pstore/ram: Do not treat empty buffers as valid	2019-01-26 09:37:02 +01:00