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Filename Latest commit message Latest commit date
Darrick J. Wong cb72c9f842 xfs: don't ever return a stale pointer from __xfs_dir3_free_read
[ Upstream commit 1cb5deb5bc095c070c09a4540c45f9c9ba24be43 ]

If we decide that a directory free block is corrupt, we must take care
not to leak a buffer pointer to the caller.  After xfs_trans_brelse
returns, the buffer can be freed or reused, which means that we have to
set *bpp back to NULL.

Callers are supposed to notice the nonzero return value and not use the
buffer pointer, but we should code more defensively, even if all current
callers handle this situation correctly.

Fixes: de14c5f541 ("xfs: verify free block header fields")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:17:42 +02:00
arch s390/irq: replace setup_irq() by request_irq() 2020-10-01 13:17:40 +02:00
block block: only call sched requeue_request() for scheduled requests 2020-09-23 12:40:37 +02:00
certs
crypto
Documentation
drivers tty: sifive: Finish transmission before changing the clock 2020-10-01 13:17:42 +02:00
fs xfs: don't ever return a stale pointer from __xfs_dir3_free_read 2020-10-01 13:17:42 +02:00
include skbuff: fix a data race in skb_queue_len() 2020-10-01 13:17:31 +02:00
init
ipc
kernel timekeeping: Prevent 32bit truncation in scale64_check_overflow() 2020-10-01 13:17:38 +02:00
lib kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec() 2020-10-01 13:17:10 +02:00
LICENSES
mm mm: avoid data corruption on CoW fault into PFN-mapped VMA 2020-10-01 13:17:39 +02:00
net Bluetooth: L2CAP: handle l2cap config request during open state 2020-10-01 13:17:41 +02:00
samples
scripts checkpatch: fix the usage of capture group ( ... ) 2020-09-09 19:12:37 +02:00
security selinux: sel_avc_get_stat_idx should increase position index 2020-10-01 13:17:32 +02:00
sound ASoC: SOF: ipc: check ipc return value before data copy 2020-10-01 13:17:37 +02:00
tools perf cs-etm: Correct synthesizing instruction samples 2020-10-01 13:17:41 +02:00
usr
virt KVM: fix overflow of zero page refcount with ksm running 2020-10-01 13:17:31 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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Makefile Linux 5.4.68 2020-09-26 18:03:16 +02:00
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.