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author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-03-07 08:41:22 +0300 |
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committer | Ben Hutchings <ben@decadent.org.uk> | 2019-07-09 22:04:14 +0100 |
commit | c6811c231798d516cab653b34a1d44d7491edf27 (patch) | |
tree | ec0eb58c97098ab02d26f6b21b154cf6e564063c /net/ipv4 | |
parent | c70d1929aa130f2a9fa00dd2ca6ac532bcb599e9 (diff) | |
download | linux-stable-c6811c231798d516cab653b34a1d44d7491edf27.tar.gz linux-stable-c6811c231798d516cab653b34a1d44d7491edf27.tar.bz2 linux-stable-c6811c231798d516cab653b34a1d44d7491edf27.zip |
xen, cpu_hotplug: Prevent an out of bounds access
commit 201676095dda7e5b31a5e1d116d10fc22985075e upstream.
The "cpu" variable comes from the sscanf() so Smatch marks it as
untrusted data. We can't pass a higher value than "nr_cpu_ids" to
cpu_possible() or it results in an out of bounds access.
Fixes: d68d82afd4c8 ("xen: implement CPU hotplugging")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'net/ipv4')
0 files changed, 0 insertions, 0 deletions