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| author | Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au> | 2020-03-10 13:22:52 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-19 07:41:03 +0100 |
| commit | 3c91ef69a3e94f78546b246225ed573fbf1735b4 (patch) | |
| tree | 3251acb10ce8c6a59de3426fa5810b002a730114 /scripts/patch-kernel | |
| parent | nvmem: core: validate nvmem config before parsing (diff) | |
| download | linux-3c91ef69a3e94f78546b246225ed573fbf1735b4.tar.gz linux-3c91ef69a3e94f78546b246225ed573fbf1735b4.zip | |
nvmem: check for NULL reg_read and reg_write before dereferencing
Return -EPERM if reg_read is NULL in bin_attr_nvmem_read() or if
reg_write is NULL in bin_attr_nvmem_write().
This prevents NULL dereferences such as the one described in
03cd45d2e219 ("thunderbolt: Prevent crash if non-active NVMem file is
read")
Signed-off-by: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200310132257.23358-10-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions