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Filename Latest commit message Latest commit date
Alessandro Astone 4e682ce560 binder: Address corner cases in deferred copy and fixup
commit 2d1746e3fda0c3612143d7c06f8e1d1830c13e23 upstream.

When handling BINDER_TYPE_FDA object we are pushing a parent fixup
with a certain skip_size but no scatter-gather copy object, since
the copy is handled standalone.
If BINDER_TYPE_FDA is the last children the scatter-gather copy
loop will never stop to skip it, thus we are left with an item in
the parent fixup list. This will trigger the BUG_ON().

This is reproducible in android when playing a video.
We receive a transaction that looks like this:
    obj[0] BINDER_TYPE_PTR, parent
    obj[1] BINDER_TYPE_PTR, child
    obj[2] BINDER_TYPE_PTR, child
    obj[3] BINDER_TYPE_FDA, child

Fixes: 09184ae9b575 ("binder: defer copies of pre-patched txn data")
Acked-by: Todd Kjos <tkjos@google.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Alessandro Astone <ales.astone@gmail.com>
Link: https://lore.kernel.org/r/20220415120015.52684-2-ales.astone@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-08 11:23:01 +01:00
arch nios2: add FORCE for vmlinuz.gz 2022-12-08 11:22:59 +01:00
block block, bfq: fix null pointer dereference in bfq_bio_bfqg() 2022-12-08 11:22:57 +01:00
certs
crypto crypto: akcipher - default implementation for setting a private key 2022-10-26 13:22:45 +02:00
Documentation docs: update mediator contact information in CoC doc 2022-11-25 17:42:20 +01:00
drivers binder: Address corner cases in deferred copy and fixup 2022-12-08 11:23:01 +01:00
fs nilfs2: fix nilfs_sufile_mark_dirty() not set segment usage as dirty 2022-12-08 11:23:00 +01:00
include audit: fix undefined behavior in bit shift for AUDIT_BIT 2022-12-08 11:22:57 +01:00
init init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash 2022-12-08 11:22:59 +01:00
ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2022-11-10 17:57:58 +01:00
kernel gcov: clang: fix the buffer overflow issue 2022-12-08 11:23:00 +01:00
lib lib/vdso: use "grep -E" instead of "egrep" 2022-12-08 11:22:59 +01:00
LICENSES
mm mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:42:22 +01:00
net tcp: configurable source port perturb table size 2022-12-08 11:23:00 +01:00
samples
scripts cert host tools: Stop complaining about deprecated OpenSSL functions 2022-11-25 17:42:10 +01:00
security capabilities: fix potential memleak on error path from vfs_getxattr_alloc() 2022-11-10 17:57:55 +01:00
sound ASoC: Intel: bytcht_es8316: Add quirk for the Nanote UMPC-01 2022-12-08 11:23:00 +01:00
tools selftests/intel_pstate: fix build for ARCH=x86_64 2022-11-25 17:42:12 +01:00
usr
virt KVM: arm64: vgic: Fix exit condition in scan_its_table() 2022-10-29 10:20:35 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: add Chandan as xfs maintainer for 5.4.y 2022-09-28 11:03:58 +02:00
Makefile Linux 5.4.225 2022-11-25 17:42:22 +01:00
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.