[v2] spi: spi-qpic-snand: avoid memory corruption

[PATCH v2 0/2] spi: spi-qpic-snand: avoid memory corruption

Gabor Juhos posted 2 patches 8 months, 2 weeks ago

Diff against v1 v3
Download series mbox

There is a newer version of this series

drivers/mtd/nand/qpic_common.c       | 30 ++++++++++++++++++++++++++----
drivers/spi/spi-qpic-snand.c         | 16 ++++++++++++++++
include/linux/mtd/nand-qpic-common.h |  8 ++++++++
3 files changed, 50 insertions(+), 4 deletions(-)

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[PATCH v2 0/2] spi: spi-qpic-snand: avoid memory corruption

Posted by Gabor Juhos 8 months, 2 weeks ago

The 'spi-qpic-nand' driver may cause memory corruption under some
circumstances. The first patch in the series changes the driver to
avoid that, whereas the second adds some sanity checks to the common
QPIC code in order to make detecting such errors easier in the future.

Preferably, the two patches should go along in via the SPI tree.
It is not a strict requirement though, in the case the second patch
gets included separately through the MTD tree it reveals the bug
which is fixed in the first patch.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
---
Changes in v2:
  - collect offered tags
  - reduce kernel log spam in commit description of patch 1
  - remove inline error printing function from patch 2, and adjust the
    commit message of the patch
  - Link to v1: https://lore.kernel.org/r/20250525-qpic-snand-avoid-mem-corruption-v1-0-5fe528def7fb@gmail.com

---
Gabor Juhos (2):
      spi: spi-qpic-snand: reallocate BAM transactions
      mtd: nand: qpic_common: prevent out of bounds access of BAM arrays

 drivers/mtd/nand/qpic_common.c       | 30 ++++++++++++++++++++++++++----
 drivers/spi/spi-qpic-snand.c         | 16 ++++++++++++++++
 include/linux/mtd/nand-qpic-common.h |  8 ++++++++
 3 files changed, 50 insertions(+), 4 deletions(-)
---
base-commit: b00d6864a4c948529dc6ddd2df76bf175bf27c63
change-id: 20250523-qpic-snand-avoid-mem-corruption-301afabeb0eb

Best regards,
-- 
Gabor Juhos <j4g8y7@gmail.com>