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| Filename | Latest commit message | Latest commit date |
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34821931e1
[ Upstream commit 5f50153288452e10b6edd69ec9112c49442b054a ] The function obtain the next buffer without boundary check. We should return with I/O error code. The bug is found by fuzzing and the crash report is attached. It is an OOB bug although reported as use-after-free. [ 4.804724] BUG: KASAN: use-after-free in aq_ring_rx_clean+0x1e88/0x2730 [atlantic] [ 4.805661] Read of size 4 at addr ffff888034fe93a8 by task ksoftirqd/0/9 [ 4.806505] [ 4.806703] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G W 5.6.0 #34 [ 4.809030] Call Trace: [ 4.809343] dump_stack+0x76/0xa0 [ 4.809755] print_address_description.constprop.0+0x16/0x200 [ 4.810455] ? aq_ring_rx_clean+0x1e88/0x2730 [atlantic] [ 4.811234] ? aq_ring_rx_clean+0x1e88/0x2730 [atlantic] [ 4.813183] __kasan_report.cold+0x37/0x7c [ 4.813715] ? aq_ring_rx_clean+0x1e88/0x2730 [atlantic] [ 4.814393] kasan_report+0xe/0x20 [ 4.814837] aq_ring_rx_clean+0x1e88/0x2730 [atlantic] [ 4.815499] ? hw_atl_b0_hw_ring_rx_receive+0x9a5/0xb90 [atlantic] [ 4.816290] aq_vec_poll+0x179/0x5d0 [atlantic] [ 4.816870] ? _GLOBAL__sub_I_65535_1_aq_pci_func_init+0x20/0x20 [atlantic] [ 4.817746] ? __next_timer_interrupt+0xba/0xf0 [ 4.818322] net_rx_action+0x363/0xbd0 [ 4.818803] ? call_timer_fn+0x240/0x240 [ 4.819302] ? __switch_to_asm+0x40/0x70 [ 4.819809] ? napi_busy_loop+0x520/0x520 [ 4.820324] __do_softirq+0x18c/0x634 [ 4.820797] ? takeover_tasklets+0x5f0/0x5f0 [ 4.821343] run_ksoftirqd+0x15/0x20 [ 4.821804] smpboot_thread_fn+0x2f1/0x6b0 [ 4.822331] ? smpboot_unregister_percpu_thread+0x160/0x160 [ 4.823041] ? __kthread_parkme+0x80/0x100 [ 4.823571] ? smpboot_unregister_percpu_thread+0x160/0x160 [ 4.824301] kthread+0x2b5/0x3b0 [ 4.824723] ? kthread_create_on_node+0xd0/0xd0 [ 4.825304] ret_from_fork+0x35/0x40 Signed-off-by: Zekun Shen <bruceshenzk@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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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.