** Changed in: linux (Ubuntu Zesty)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1704885
Title:
hns: use after free in hns_nic_net_xmit_hw
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Zesty:
Fix Committed
Bug description:
[Impact]
KASAN detected a use-after free condition in hns_nic_net_xmit_hw() that can
lead to a crash. KASAN error is shown in the commit log:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.13-rc1&id=27463ad99f738ed93c7c8b3e2e5bc8c4853a2ff2
[Test Case]
Unfortunately, KASAN arm64 support wasn't mature enough to test with Ubuntu
kernels (< 4.13), so we can't test this directly on an Ubuntu tree. Testing on
Ubuntu is therefore limited to regression testing.
[Regression Risk]
The fix is localized to a driver that is specific to a HiSilicon SoC.
Regression risk is mitigated by testing on that system (boot, generating
network activity over a NIC that uses this driver).
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