kernel/linux.git/drivers/scsi/bfa/bfad_debugfs.c, branch v6.12.80

scsi: bfa: Ensure the copied buf is NUL terminated

2024-05-07T01:19:24+00:00

Currently, we allocate a nbytes-sized kernel buffer and copy nbytes from userspace to that buffer. Later, we use sscanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using sscanf. Fix this issue by using memdup_user_nul instead of memdup_user. Fixes: 9f30b674759b ("bfa: replace 2 kzalloc/copy_from_user by memdup_user") Signed-off-by: Bui Quang Minh Link: https://lore.kernel.org/r/20240424-fix-oob-read-v2-3-f1f1b53a10f4@gmail.com Signed-off-by: Martin K. Petersen

scsi: bfa: Remove redundant NULL check

2022-04-26T03:23:05+00:00

Fix the following warning reported by coccicheck: drivers/scsi/bfa/bfad_debugfs.c:375:2-7: WARNING: NULL check before some freeing functions is not needed. Link: https://lore.kernel.org/r/1647309434-13936-1-git-send-email-baihaowen@meizu.com Signed-off-by: Haowen Bai Signed-off-by: Martin K. Petersen

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 292

2019-06-05T15:36:38+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license gpl version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 66 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.606369721@linutronix.de Signed-off-by: Greg Kroah-Hartman

scsi: bfa: no need to check return value of debugfs_create functions

2019-01-29T05:40:40+00:00

When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. [mkp: removed unused label] Cc: Anil Gurumurthy Cc: Sudarsana Kalluru Cc: "James E.J. Bottomley" Cc: "Martin K. Petersen" Cc: linux-scsi@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Martin K. Petersen

scsi: bfa: Use zeroing allocator rather than allocator/memset

2018-01-04T06:12:32+00:00

Use vzalloc instead of vmalloc followed by memset 0. Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci Suggested-by: Luis R. Rodriguez Signed-off-by: Himanshu Jha Acked-by: Anil Gurumurthy Signed-off-by: Martin K. Petersen

scsi: bfa: integer overflow in debugfs

2017-10-17T02:35:13+00:00

We could allocate less memory than intended because we do: bfad->regdata = kzalloc(len << 2, GFP_KERNEL); The shift can overflow leading to a crash. This is debugfs code so the impact is very small. I fixed the network version of this in March with commit 13e2d5187f6b ("bna: integer overflow bug in debugfs"). Fixes: ab2a9ba189e8 ("[SCSI] bfa: add debugfs support") Signed-off-by: Dan Carpenter Signed-off-by: Martin K. Petersen

bfa: File header and user visible string changes

2015-12-02T22:07:38+00:00

Signed-off-by: Sudarsana Kalluru Signed-off-by: Anil Gurumurthy Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen

bfa: Update copyright messages

2015-12-02T22:05:45+00:00

Signed-off-by: Sudarsana Kalluru Signed-off-by: Anil Gurumurthy Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen

bfa: replace 2 kzalloc/copy_from_user by memdup_user

2014-11-20T08:11:29+00:00

This patch also removes unnecessary printk(KERN_INFO Signed-off-by: Fabian Frederick Acked-by: Anil Gurumurthy Signed-off-by: Christoph Hellwig

bfa: switch to fixed_size_llseek()

2013-06-29T08:57:32+00:00

Signed-off-by: Al Viro