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Amir Goldstein 77a28aa476 ovl: relax WARN_ON in ovl_verify_area() 
syzbot hit an assertion in copy up data loop which looks like it is
the result of a lower file whose size is being changed underneath
overlayfs.

This type of use case is documented to cause undefined behavior, so
returning EIO error for the copy up makes sense, but it should not be
causing a WARN_ON assertion.

Reported-and-tested-by: syzbot+3abd99031b42acf367ef@syzkaller.appspotmail.com
Fixes: ca7ab48240 ("ovl: add permission hooks outside of do_splice_direct()")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
2024-03-17 15:59:41 +02:00
arch This update includes the following changes: 2024-03-15 14:46:54 -07:00
block block: fix mismatched kerneldoc function name 2024-03-14 09:40:47 -06:00
certs
crypto This update includes the following changes: 2024-03-15 14:46:54 -07:00
Documentation This update includes the following changes: 2024-03-15 14:46:54 -07:00
drivers This update includes the following changes: 2024-03-15 14:46:54 -07:00
fs ovl: relax WARN_ON in ovl_verify_area() 2024-03-17 15:59:41 +02:00
include This update includes the following changes: 2024-03-15 14:46:54 -07:00
init - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
io_uring
ipc
kernel bcachefs updates for 6.9 2024-03-15 09:00:09 -07:00
lib This includes the following changes related to sparc for v6.9: 2024-03-15 12:47:21 -07:00
LICENSES
mm bcachefs updates for 6.9 2024-03-15 09:00:09 -07:00
net - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
rust arm64 updates for 6.9: 2024-03-14 15:35:42 -07:00
samples VFIO updates for v6.9-rc1 2024-03-15 13:21:13 -07:00
scripts S390: 2024-03-15 13:03:13 -07:00
security - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
sound sound updates for 6.9-rc1 2024-03-14 11:10:43 -07:00
tools This update includes the following changes: 2024-03-15 14:46:54 -07:00
usr
virt
.clang-format
.cocciconfig
.editorconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap Networking changes for 6.9. 2024-03-12 17:44:08 -07:00
.rustfmt.toml
COPYING
CREDITS Not a ton of stuff happening in the clk framework in this pull request. We got 2024-03-15 11:48:01 -07:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: update overlayfs git tree 2024-03-17 13:58:23 +02:00
Makefile - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
README

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.