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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 04:21:33 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 04:21:33 +0000 |
| commit | 282c335ad1bf4d21fcedff132e19995c24c09adc (patch) | |
| tree | d24dc7bfbb3a6b4bfd5b46964347ada86f72d751 /net/wireless/wext-core.c | |
| parent | Adding upstream version 4.19.289. (diff) | |
| download | linux-282c335ad1bf4d21fcedff132e19995c24c09adc.tar.xz linux-282c335ad1bf4d21fcedff132e19995c24c09adc.zip | |
Adding upstream version 4.19.304.upstream/4.19.304upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/wireless/wext-core.c')
| -rw-r--r-- | net/wireless/wext-core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c index 76a80a416..a57f54bc0 100644 --- a/net/wireless/wext-core.c +++ b/net/wireless/wext-core.c @@ -796,6 +796,12 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd, } } + /* Sanity-check to ensure we never end up _allocating_ zero + * bytes of data for extra. + */ + if (extra_size <= 0) + return -EFAULT; + /* kzalloc() ensures NULL-termination for essid_compat. */ extra = kzalloc(extra_size, GFP_KERNEL); if (!extra) |