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Filename Latest commit message Latest commit date
Vinicius Costa Gomes 88e0720133 igb: Fix use-after-free error during reset
[ Upstream commit 7b292608db23ccbbfbfa50cdb155d01725d7a52e ]

Cleans the next descriptor to watch (next_to_watch) when cleaning the
TX ring.

Failure to do so can cause invalid memory accesses. If igb_poll() runs
while the controller is reset this can lead to the driver try to free
a skb that was already freed.

(The crash is harder to reproduce with the igb driver, but the same
potential problem exists as the code is identical to igc)

Fixes: 7cc6fd4c60 ("igb: Don't bother clearing Tx buffer_info in igb_clean_tx_ring")
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reported-by: Erez Geva <erez.geva.ext@siemens.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-28 13:30:52 +02:00
arch arm64: dts: marvell: armada-37xx: move firmware node to generic dtsi file 2021-07-25 14:35:13 +02:00
block
certs
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Documentation
drivers igb: Fix use-after-free error during reset 2021-07-28 13:30:52 +02:00
fs f2fs: Show casefolding support only when supported 2021-07-25 14:35:13 +02:00
include net: validate lwtstate->data before returning from skb_tunnel_info() 2021-07-25 14:35:15 +02:00
init
ipc
kernel
lib
LICENSES
mm mm: slab: fix kmem_cache_create failed when sysfs node not destroyed 2021-07-25 14:35:14 +02:00
net udp: annotate data races around unix_sk(sk)->gso_size 2021-07-25 14:35:15 +02:00
samples
scripts
security
sound
tools perf test bpf: Free obj_buf 2021-07-25 14:35:15 +02:00
usr
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Makefile Linux 5.4.135 2021-07-25 14:35:16 +02:00
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.