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The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)
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Tony Battersby 0f52d7b782 scsi: core: Fix legacy /proc parsing buffer overflow 
commit 9426d3cef5 upstream.

(lightly modified commit message mostly by Linus Torvalds)

The parsing code for /proc/scsi/scsi is disgusting and broken.  We should
have just used 'sscanf()' or something simple like that, but the logic may
actually predate our kernel sscanf library routine for all I know.  It
certainly predates both git and BK histories.

And we can't change it to be something sane like that now, because the
string matching at the start is done case-insensitively, and the separator
parsing between numbers isn't done at all, so *any* separator will work,
including a possible terminating NUL character.

This interface is root-only, and entirely for legacy use, so there is
absolutely no point in trying to tighten up the parsing.  Because any
separator has traditionally worked, it's entirely possible that people have
used random characters rather than the suggested space.

So don't bother to try to pretty it up, and let's just make a minimal patch
that can be back-ported and we can forget about this whole sorry thing for
another two decades.

Just make it at least not read past the end of the supplied data.

Link: https://lore.kernel.org/linux-scsi/b570f5fe-cb7c-863a-6ed9-f6774c219b88@cybernetics.com/
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin K Petersen <martin.petersen@oracle.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: stable@kernel.org
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Martin K Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2023-08-16 18:22:03 +02:00
Documentation iommu/arm-smmu-v3: Document nesting-related errata 2023-08-11 15:13:49 +02:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
arch x86: Move gds_ucode_mitigated() declaration to header 2023-08-16 18:22:00 +02:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-23 13:47:37 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-09 10:32:34 +02:00
drivers scsi: core: Fix legacy /proc parsing buffer overflow 2023-08-16 18:22:03 +02:00
fs btrfs: set cache_block_group_error if we find an error 2023-08-16 18:22:03 +02:00
include netfilter: nf_tables: report use refcount overflow 2023-08-16 18:22:03 +02:00
init x86/mm: Initialize text poking earlier 2023-08-08 19:58:33 +02:00
io_uring io_uring: correct check for O_TMPFILE 2023-08-16 18:21:59 +02:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:28:45 +01:00
kernel bpf: aggressively forget precise markings during state checkpointing 2023-08-16 18:21:58 +02:00
lib test_firmware: return ENOMEM instead of ENOSPC on failed memory allocation 2023-07-23 13:47:25 +02:00
mm mm/damon/ops-common: atomically test and clear young on ptes and pmds 2023-07-23 13:47:47 +02:00
net netfilter: nf_tables: report use refcount overflow 2023-08-16 18:22:03 +02:00
samples samples: ftrace: Save required argument registers in sample trampolines 2023-07-23 13:47:55 +02:00
scripts kbuild: Disable GCOV for *.mod.o 2023-07-23 13:47:17 +02:00
security security: keys: Modify mismatched function name 2023-07-27 08:47:01 +02:00
sound ASoC: cs42l51: fix driver to properly autoload with automatic module loading 2023-08-03 10:22:47 +02:00
tools nexthop: Fix infinite nexthop bucket dump when using maximum nexthop ID 2023-08-16 18:22:02 +02:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt KVM: Grab a reference to KVM for VM and vCPU stats file descriptors 2023-08-03 10:22:40 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
…
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS cifs: missing directory in MAINTAINERS file 2023-08-03 10:22:29 +02:00
Makefile Linux 5.15.126 2023-08-11 15:14:00 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.