Kairui Song 902ef8f16d 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>

2025-01-23 17:22:58 +01:00

..

backend_842.c

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backend_842.h

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backend_deflate.c

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backend_deflate.h

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backend_lz4.c

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backend_lz4.h

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backend_lz4hc.c

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backend_lz4hc.h

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backend_lzo.c

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backend_lzo.h

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backend_lzorle.c

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backend_lzorle.h

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backend_zstd.c

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backend_zstd.h

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Kconfig

zram: ZRAM_DEF_COMP should depend on ZRAM

2024-12-05 14:02:13 +01:00

Makefile

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zcomp.c

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zcomp.h

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zram_drv.c

zram: fix potential UAF of zram table

2025-01-23 17:22:58 +01:00

zram_drv.h

zram: permit only one post-processing operation at a time

2024-12-05 14:02:16 +01:00