[PATCH 0/2] mtdchar_write_ioctl(): prevent integer overflow, use kvmalloc()

Michał Kępień kernel at kempniu.pl
Mon May 16 00:05:59 PDT 2022


This patch series addresses two flaws in mtdchar_write_ioctl() found by
Richard Weinberger while he was reviewing v3 of the patch series
proposing a new MEMREAD ioctl [1].

Richard, I included a Suggested-by tag crediting you in both of the
patches in this series.  I hope that is okay with you, but please let me
know if it isn't.

Once this patch series is reviewed and accepted, I will apply similar
fixes in v4 of the MEMREAD ioctl patch series.

[1] https://lists.infradead.org/pipermail/linux-mtd/2022-February/091276.html

Michał Kępień (2):
  mtdchar: prevent integer overflow in a safety check
  mtdchar: use kvmalloc() for potentially large allocations

 drivers/mtd/mtdchar.c      | 13 ++++++++-----
 include/uapi/mtd/mtd-abi.h |  4 ++--
 2 files changed, 10 insertions(+), 7 deletions(-)

-- 
2.36.1





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