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linux/drivers/block/zram
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Kairui Song 571d3f6045 zram: fix potential UAF of zram table 
commit 212fe1c0df upstream.

If zram_meta_alloc failed early, it frees allocated zram->table without
setting it NULL.  Which will potentially cause zram_meta_free to access
the table if user reset an failed and uninitialized device.

Link: https://lkml.kernel.org/r/20250107065446.86928-1-ryncsn@gmail.com
Fixes: 74363ec674 ("zram: fix uninitialized ZRAM not releasing backing device")
Signed-off-by: Kairui Song <kasong@tencent.com>
Reviewed-by:  Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-01-23 17:21:15 +01:00
..
Kconfig zram: split memory-tracking and ac-time tracking 2024-12-14 19:59:44 +01:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
zcomp.c zram: preparation for multi-zcomp support 2022-11-30 15:58:51 -08:00
zcomp.h zram: preparation for multi-zcomp support 2022-11-30 15:58:51 -08:00
zram_drv.c zram: fix potential UAF of zram table 2025-01-23 17:21:15 +01:00
zram_drv.h zram: split memory-tracking and ac-time tracking 2024-12-14 19:59:44 +01:00