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Xuan Zhuo c5b30148ef virtio_ring: fix KMSAN error for premapped mode 
[ Upstream commit 840b2d39a2 ]

Add kmsan for virtqueue_dma_map_single_attrs to fix:

BUG: KMSAN: uninit-value in receive_buf+0x45ca/0x6990
 receive_buf+0x45ca/0x6990
 virtnet_poll+0x17e0/0x3130
 net_rx_action+0x832/0x26e0
 handle_softirqs+0x330/0x10f0
 [...]

Uninit was created at:
 __alloc_pages_noprof+0x62a/0xe60
 alloc_pages_noprof+0x392/0x830
 skb_page_frag_refill+0x21a/0x5c0
 virtnet_rq_alloc+0x50/0x1500
 try_fill_recv+0x372/0x54c0
 virtnet_open+0x210/0xbe0
 __dev_open+0x56e/0x920
 __dev_change_flags+0x39c/0x2000
 dev_change_flags+0xaa/0x200
 do_setlink+0x197a/0x7420
 rtnl_setlink+0x77c/0x860
 [...]

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Tested-by: Alexander Potapenko <glider@google.com>
Message-Id: <20240606111345.93600-1-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>  # s390x
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-12 11:11:36 +02:00
arch um: line: always fill *error_out in setup_one_line() 2024-09-12 11:11:35 +02:00
block block: remove the blk_flush_integrity call in blk_integrity_unregister 2024-09-08 07:54:47 +02:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: aead,cipher - zeroize key buffer after use 2024-07-11 12:49:04 +02:00
Documentation hwspinlock: Introduce hwspin_lock_bust() 2024-09-08 07:54:43 +02:00
drivers virtio_ring: fix KMSAN error for premapped mode 2024-09-12 11:11:36 +02:00
fs cifs: Fix FALLOC_FL_ZERO_RANGE to preflush buffered part of target region 2024-09-12 11:11:32 +02:00
include bpf, net: Fix a potential race in do_sock_getsockopt() 2024-09-12 11:11:34 +02:00
init rust: fix the default format for CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT 2024-08-29 17:33:29 +02:00
io_uring io_uring: fix io_match_task must_hold 2024-08-03 08:54:41 +02:00
ipc sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table) 2024-08-11 12:47:13 +02:00
kernel cgroup: Protect css->cgroup write under css_set_lock 2024-09-12 11:11:35 +02:00
lib sched/topology: Handle NUMA_NO_NODE in sched_numa_find_nth_cpu() 2024-08-29 17:33:24 +02:00
LICENSES
mm userfaultfd: fix checks for huge PMDs 2024-09-12 11:11:27 +02:00
net net: bridge: br_fdb_external_learn_add(): always set EXT_LEARN 2024-09-12 11:11:35 +02:00
rust rust: kbuild: fix export of bss symbols 2024-09-12 11:11:32 +02:00
samples bpf: Replace bpf_lpm_trie_key 0-length array with flexible array 2024-08-19 06:04:27 +02:00
scripts rust: work around bindgen 0.69.0 issue 2024-08-29 17:33:29 +02:00
security smack: unix sockets: fix accept()ed socket label 2024-09-12 11:11:29 +02:00
sound ASoC: topology: Properly initialize soc_enum values 2024-09-12 11:11:35 +02:00
tools selftests: net: enable bind tests 2024-09-12 11:11:35 +02:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-06-27 13:49:11 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: rename binkernel.spec to kernel.spec 2023-07-25 00:59:33 +09:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild
Kconfig
MAINTAINERS pwm: Rename pwm_apply_state() to pwm_apply_might_sleep() 2024-06-12 11:12:24 +02:00
Makefile Linux 6.6.50 2024-09-08 07:54:49 +02:00
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.