nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-22 17:25:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

coe: disable allocation power of 2 check

Browse Source 
In fringe unexpected cases, HSB (Holoscan sensor bringe) sends image
byte offset larger then allocated image size (e.g. if HSB just sends
incorrect packet, or is configured incorrectly for a different image
size. or just packet corruption).

In such cases, we run into SMMU faults.

To mitigate this, a buffer size of two check was introduced so even
were this to happen, it would not cause SMMU errors.

However, the support for this in UMD is not complete.
Therefore, disable this check until UMD is able to comply with this
buffer constraint.

Jira L4T-7463

Change-Id: I2de31740284627ca117f1fa0a28bde2ef9a82785
Signed-off-by: Rakibul Hassan <rakibulh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3419644
Reviewed-by: Igor Mitsyanko <imitsyanko@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Narendra Kondapalli <nkondapalli@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
This commit is contained in:
Rakibul Hassan
2025-07-25 20:31:47 +00:00
committed by mobile promotions
parent bbcbfbb49e
commit 66235b7274
1 changed files with 5 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/media/platform/tegra/camera/coe/rtcpu-coe.c
View File

@@ -639,7 +639,12 @@ static int coe_ioctl_handle_capture_req(struct coe_channel_state * const ch,
* up to the next closest power of two boundary to eliminate a risk of a malformed
* incoming network packet triggerring invalid memory access.
*/
#define L4T7463
#ifndef L4T7463
alloc_size_min = roundup_pow_of_two(req->buf_size);
#else
alloc_size_min = req->buf_size;
#endif
if (alloc_size_min > buf_max_size) {
dev_err(ch->dev, "CAPTURE_REQ: capture too long %u\n", req->buf_size);