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Ruipeng Qi 49918dd526 pstore: ram_core: fix incorrect success return when vmap() fails ... [ Upstream commit 05363abc76 ] In persistent_ram_vmap(), vmap() may return NULL on failure. If offset is non-zero, adding offset_in_page(start) causes the function to return a non-NULL pointer even though the mapping failed. persistent_ram_buffer_map() therefore incorrectly returns success. Subsequent access to prz->buffer may dereference an invalid address and cause crashes. Add proper NULL checking for vmap() failures. Signed-off-by: Ruipeng Qi <ruipengqi3@gmail.com> Link: https://patch.msgid.link/20260203020358.3315299-1-ruipengqi3@gmail.com Signed-off-by: Kees Cook <kees@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2026-03-04 07:20:01 -05:00
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blk.c	pstore/blk: trivial typo fixes	2025-03-13 12:49:51 +01:00
ftrace.c	ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs	2020-11-13 12:14:55 -05:00
inode.c	pstore: Fix warning in pstore_kill_sb()	2021-02-23 09:27:20 -08:00
internal.h	pstore: Move kmsg_bytes default into Kconfig	2020-12-01 12:09:17 -08:00
Kconfig	pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES	2022-12-31 13:14:45 +01:00
Makefile	pstore/blk: Introduce backend for block devices	2020-05-30 10:34:03 -07:00
platform.c	pstore/platform: Add check for kstrdup	2023-11-20 11:08:13 +01:00
pmsg.c	pstore: Revert pmsg_lock back to a normal mutex	2023-05-11 23:00:31 +09:00
ram.c	pstore/ram: Fix crash when setting number of cpus to an odd number	2024-02-23 08:54:39 +01:00
ram_core.c	pstore: ram_core: fix incorrect success return when vmap() fails	2026-03-04 07:20:01 -05:00
zone.c	pstore/zone: Add a null pointer check to the psz_kmsg_read	2024-04-13 13:01:43 +02:00