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Dan Carpenter 95506c7f33 binfmt_flat: Fix integer overflow bug on 32 bit systems 
commit 55cf2f4b94 upstream.

Most of these sizes and counts are capped at 256MB so the math doesn't
result in an integer overflow.  The "relocs" count needs to be checked
as well.  Otherwise on 32bit systems the calculation of "full_data"
could be wrong.

	full_data = data_len + relocs * sizeof(unsigned long);

Fixes: c995ee28d2 ("binfmt_flat: prevent kernel dammage from corrupted executable headers")
Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Nicolas Pitre <npitre@baylibre.com>
Link: https://lore.kernel.org/r/5be17f6c-5338-43be-91ef-650153b975cb@stanley.mountain
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-21 13:49:39 +01:00
arch m68k: vga: Fix I/O defines 2025-02-21 13:49:38 +01:00
block partitions: ldm: remove the initial kernel-doc notation 2025-02-21 13:48:54 +01:00
certs
crypto crypto: api - Add crypto_clone_tfm 2024-12-14 19:53:51 +01:00
Documentation kconfig: add warn-unknown-symbols sanity check 2025-02-21 13:49:24 +01:00
drivers drm/modeset: Handle tiled displays in pan_display_atomic. 2025-02-21 13:49:38 +01:00
fs binfmt_flat: Fix integer overflow bug on 32 bit systems 2025-02-21 13:49:39 +01:00
include net: sched: Fix truncation of offloaded action statistics 2025-02-21 13:49:38 +01:00
init initramfs: avoid filename buffer overrun 2024-12-14 19:53:14 +01:00
io_uring io_uring: fix waiters missing wake ups 2025-02-01 18:30:09 +01:00
ipc ipc: fix memleak if msg_init_ns failed in create_ipc_ns 2024-12-14 19:54:06 +01:00
kernel printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX 2025-02-21 13:49:30 +01:00
lib lockdep: Fix upper limit for LOCKDEP_*_BITS configs 2025-02-21 13:49:29 +01:00
LICENSES
mm filemap: avoid truncating 64-bit offset to 32 bits 2025-01-23 17:17:14 +01:00
net netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() 2025-02-21 13:49:37 +01:00
rust rust: macros: provide correct provenance when constructing THIS_MODULE 2024-10-17 15:22:24 +02:00
samples samples/landlock: Fix possible NULL dereference in parse_path() 2025-02-21 13:49:03 +01:00
scripts kbuild: switch from lz4c to lz4 for compression 2025-02-21 13:49:25 +01:00
security tomoyo: don't emit warning in tomoyo_write_control() 2025-02-21 13:49:31 +01:00
sound ALSA: hda/realtek: Enable Mute LED on HP Laptop 14s-fq1xxx 2025-02-21 13:49:38 +01:00
tools udp: gso: do not drop small packets when PMTU reduces 2025-02-21 13:49:36 +01:00
usr
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-06-27 13:46:21 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:21:15 +02:00
.mailmap
.rustfmt.toml
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: add leah to 6.1 MAINTAINERS file 2024-05-17 11:56:16 +02:00
Makefile kbuild: switch from lz4c to lz4 for compression 2025-02-21 13:49:25 +01:00
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.