kernel.git/drivers/mtd/ubi/io.c, branch linux-3.2.y

UBI: Validate data_size

2015-11-17T15:54:41Z

commit 281fda27673f833a01d516658a64d22a32c8e072 upstream. Make sure that data_size is less than LEB size. Otherwise a handcrafted UBI image is able to trigger an out of bounds memory access in ubi_compare_lebs(). Signed-off-by: Richard Weinberger Reviewed-by: David Gstir [bwh: Backported to 3.2: drop first argument to ubi_err()] Signed-off-by: Ben Hutchings

mtd: utilize `mtd_is_*()' functions

2011-09-21T06:19:06Z

Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy

UBI: prepare debugging stuff to further debugfs conversion

2011-06-01T08:21:52Z

We'll need the 'struct ubi_device *ubi' pointer in every debugging function (to access the ->dbg field), so add this pointer to all the functions implementing UBI debugging test modes like 'ubi_dbg_is_bitflip()' etc. Signed-off-by: Artem Bityutskiy

UBI: use debugfs for the extra checks knobs

2011-06-01T08:21:47Z

This patch introduces debugfs support to UBI. All the UBI stuff is kept in the "ubi" debugfs directory, which contains per-UBI device "ubi/ubiX" sub-directories, containing debugging files. This file also creates "ubi/ubiX/chk_gen" and "ubi/ubiX/chk_io" knobs for switching general and I/O extra checks on and off. And it removes the 'debug_chks' UBI module parameters. Signed-off-by: Artem Bityutskiy

UBI: fix typo in a message

2011-04-14T10:38:59Z

When a PEB passes the torture test, UBI prints "do not mark it a bad", but should print "do not mark it as bad". This patch corrects the typo. Signed-off-by: Artem Bityutskiy

UBI: fix minor stylistic issues

2011-04-14T08:34:41Z

Fix checkpatch.pl errors and warnings: * space before tab * line over 80 characters * include linux/ioctl.h instead of asm/ioctl.h Signed-off-by: Artem Bityutskiy

UBI: check if we are in RO mode in the erase routine

2011-04-05T08:08:58Z

'do_sync_erase()' has to check whether we are in R/O mode before erasing the PEB. This patch adds the check and while on it, adds an assertion which validates the 'pnum' argument, as well as removes a check which is always true because it has already been done few lines before. Signed-off-by: Artem Bityutskiy

UBI: use GFP_NOFS properly

2011-03-24T14:09:56Z

This patch fixes a brown-paperbag bug which was introduced by me: I used incorrect "GFP_KERNEL | GFP_NOFS" allocation flags to make sure my allocations do not cause write-back. But the correct form is "GFP_NOFS". Signed-off-by: Artem Bityutskiy

UBI: make self-checks dynamic

2011-03-16T11:50:16Z

This patch adds a possibility to dynamically switch UBI self-checks on and off, instead of toggling them compile-time from the configuration menu. This is much more flexible, and consistent with UBIFS, and this also simplifies UBI Kconfig menu and the code. This patch introduces two levels of self-checks - general, which includes all self-checks which are relatively fast, and I/O, which includes write-verify checks and erase-verify checks, which are relatively slow and involve flash I/O. Signed-off-by: Artem Bityutskiy

UBI: remove UBI_IO_DEBUG macro

2011-03-16T11:50:16Z

This additional little macro is used to print a bit more messages while scanning the media. However, we have the 'dbg_bld()' macro for this, so we better us 'dbg_bld()' and kill UBI_IO_DEBUG. This simplifies the code a tiny bit. Signed-off-by: Artem Bityutskiy