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| author | Gustavo A. R. Silva | 2018-05-03 20:17:12 +0200 |
|---|---|---|
| committer | David S. Miller | 2018-05-04 18:52:47 +0200 |
| commit | 2be147f7459db5bbf292e0a6f135037b55e20b39 (patch) | |
| tree | 24d26b101cb213841eb1b907e42f8c899b639ab2 /net/atm | |
| parent | openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found (diff) | |
| download | kernel-qcow2-linux-2be147f7459db5bbf292e0a6f135037b55e20b39.tar.gz kernel-qcow2-linux-2be147f7459db5bbf292e0a6f135037b55e20b39.tar.xz kernel-qcow2-linux-2be147f7459db5bbf292e0a6f135037b55e20b39.zip | |
atm: zatm: Fix potential Spectre v1
pool can be indirectly controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability.
This issue was detected with the help of Smatch:
drivers/atm/zatm.c:1462 zatm_ioctl() warn: potential spectre issue
'zatm_dev->pool_info' (local cap)
Fix this by sanitizing pool before using it to index
zatm_dev->pool_info
Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].
[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm')
0 files changed, 0 insertions, 0 deletions