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Filename Latest commit message Latest commit date
Dragos Tatulea a0ddb20a74 net/mlx5e: kTLS, Fix incorrect page refcounting
[ Upstream commit dd6e972cc5890d91d6749bb48e3912721c4e4b25 ]

The kTLS tx handling code is using a mix of get_page() and
page_ref_inc() APIs to increment the page reference. But on the release
path (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used.

This is an issue when using pages from large folios: the get_page()
references are stored on the folio page while the page_ref_inc()
references are stored directly in the given page. On release the folio
page will be dereferenced too many times.

This was found while doing kTLS testing with sendfile() + ZC when the
served file was read from NFS on a kernel with NFS large folios support
(commit 49b29a573da8 ("nfs: add support for large folios")).

Fixes: 84d1bb2b13 ("net/mlx5e: kTLS, Limit DUMP wqe size")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241107183527.676877-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-14 19:44:18 +01:00
arch powerpc/powernv: Free name on error in opal_event_init() 2024-11-17 14:58:53 +01:00
block blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race 2024-11-08 16:20:48 +01:00
certs
crypto crypto: aead,cipher - zeroize key buffer after use 2024-11-08 16:20:33 +01:00
Documentation dt-bindings: gpu: Convert Samsung Image Rotator to dt-schema 2024-11-08 16:20:52 +01:00
drivers net/mlx5e: kTLS, Fix incorrect page refcounting 2024-12-14 19:44:18 +01:00
fs fs: Fix uninitialized value issue in from_kuid and from_kgid 2024-11-17 14:58:53 +01:00
include mm: add remap_pfn_range_notrack 2024-11-17 14:58:53 +01:00
init init: open /initrd.image with O_LARGEFILE 2024-04-13 12:51:36 +02:00
ipc ipc: replace costly bailout check in sysvipc_find_ipc() 2024-09-04 13:15:02 +02:00
kernel bpf: use kvzmalloc to allocate BPF verifier environment 2024-11-17 14:58:53 +01:00
lib debugobjects: Fix conditions in fill_pool() 2024-11-08 16:20:34 +01:00
LICENSES
mm mm: avoid leaving partial pfn mappings around in error case 2024-11-17 14:58:53 +01:00
net netlink: terminate outstanding dump on socket close 2024-12-14 19:44:18 +01:00
samples media: rename VFL_TYPE_GRABBER to _VIDEO 2024-03-26 18:22:22 -04:00
scripts scripts: kconfig: merge_config: config files: add a trailing newline 2024-11-08 16:20:24 +01:00
security security/keys: fix slab-out-of-bounds in key_task_permission 2024-11-17 14:58:50 +01:00
sound sound: Make CONFIG_SND depend on INDIRECT_IOMEM instead of UML 2024-11-17 14:58:53 +01:00
tools usbip: tools: Fix detach_port() invalid port error path 2024-11-08 16:20:53 +01:00
usr
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-11-08 16:20:47 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-11-08 16:20:33 +01:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.286 2024-11-17 14:58:53 +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.