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| author | Justin Stitt <justinstitt@google.com> | 2023-08-23 03:23:08 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2023-10-09 12:37:20 +0300 |
| commit | 571bfeb48ac24564658e58c0a3a5318904846aae (patch) | |
| tree | 87518f975f0e482a5f9985fe9791e069c2025880 /drivers/accel/habanalabs | |
| parent | 90f3de616259cbb5666f00f8daf5420cd7d71d18 (diff) | |
| download | linux-571bfeb48ac24564658e58c0a3a5318904846aae.tar.xz | |
accel/habanalabs: refactor deprecated strncpy
`strncpy` is deprecated for use on NUL-terminated destination strings [1].
A suitable replacement is `strscpy` [2] due to the fact that it
guarantees NUL-termination on its destination buffer argument which is
_not_ the case for `strncpy`!
There is likely no bug happening in this case since HL_STR_MAX is
strictly larger than all source strings. Nonetheless, prefer a safer and
more robust interface.
It should also be noted that `strscpy` will not pad like `strncpy`. If
this NUL-padding behavior is _required_ we should use `strscpy_pad`
instead of `strscpy`.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/accel/habanalabs')
| -rw-r--r-- | drivers/accel/habanalabs/common/habanalabs_drv.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/accel/habanalabs/common/habanalabs_drv.c b/drivers/accel/habanalabs/common/habanalabs_drv.c index 7e66f623f350..5db9af7e2daf 100644 --- a/drivers/accel/habanalabs/common/habanalabs_drv.c +++ b/drivers/accel/habanalabs/common/habanalabs_drv.c @@ -460,14 +460,14 @@ static int create_hdev(struct hl_device **dev, struct pci_dev *pdev) hdev->pdev = pdev; /* Assign status description string */ - strncpy(hdev->status[HL_DEVICE_STATUS_OPERATIONAL], "operational", HL_STR_MAX); - strncpy(hdev->status[HL_DEVICE_STATUS_IN_RESET], "in reset", HL_STR_MAX); - strncpy(hdev->status[HL_DEVICE_STATUS_MALFUNCTION], "disabled", HL_STR_MAX); - strncpy(hdev->status[HL_DEVICE_STATUS_NEEDS_RESET], "needs reset", HL_STR_MAX); - strncpy(hdev->status[HL_DEVICE_STATUS_IN_DEVICE_CREATION], - "in device creation", HL_STR_MAX); - strncpy(hdev->status[HL_DEVICE_STATUS_IN_RESET_AFTER_DEVICE_RELEASE], - "in reset after device release", HL_STR_MAX); + strscpy(hdev->status[HL_DEVICE_STATUS_OPERATIONAL], "operational", HL_STR_MAX); + strscpy(hdev->status[HL_DEVICE_STATUS_IN_RESET], "in reset", HL_STR_MAX); + strscpy(hdev->status[HL_DEVICE_STATUS_MALFUNCTION], "disabled", HL_STR_MAX); + strscpy(hdev->status[HL_DEVICE_STATUS_NEEDS_RESET], "needs reset", HL_STR_MAX); + strscpy(hdev->status[HL_DEVICE_STATUS_IN_DEVICE_CREATION], + "in device creation", HL_STR_MAX); + strscpy(hdev->status[HL_DEVICE_STATUS_IN_RESET_AFTER_DEVICE_RELEASE], + "in reset after device release", HL_STR_MAX); /* First, we must find out which ASIC are we handling. This is needed |