A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-25 14:13:01 -04:00
Code Issues Projects Releases Packages Wiki Activity

FROMGIT: media: venus: hfi: add a check to handle OOB in sfr region

Browse source 
sfr->buf_size is in shared memory and can be modified by malicious user.
OOB write is possible when the size is made higher than actual sfr data
buffer. Cap the size to allocated size for such cases.

Cc: stable@vger.kernel.org
Fixes: d96d3f30c0 ("[media] media: venus: hfi: add Venus HFI files")
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
CRs-Fixed: 3947576
Change-Id: I483a5feff3dfa35dae8f444e57601d2d1d85246f
Git-commit: f4b211714bcc70effa60c34d9fa613d182e3ef1e
Git-repo: https://gitlab.freedesktop.org/linux-media/media-committers.git
Signed-off-by: Vikash Garodia <quic_vgarodia@quicinc.com>
This commit is contained in:
Vikash Garodia 2024-11-05 14:24:57 +05:30 • committed by Sumangala P
commit d15a6a8a95
1 changed files with 10 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

12
drivers/media/platform/qcom/venus/hfi_venus.c
View file

@ -970,18 +970,26 @@ static void venus_sfr_print(struct venus_hfi_device *hdev)
{
struct device *dev = hdev->core->dev;
struct hfi_sfr *sfr = hdev->sfr.kva;
u32 size;
void *p;
if (!sfr)
return;
p = memchr(sfr->data, '\0', sfr->buf_size);
size = sfr->buf_size;
if (!size)
return;
if (size > ALIGNED_SFR_SIZE)
size = ALIGNED_SFR_SIZE;
p = memchr(sfr->data, '\0', size);
/*
* SFR isn't guaranteed to be NULL terminated since SYS_ERROR indicates
* that Venus is in the process of crashing.
*/
if (!p)
sfr->data[sfr->buf_size - 1] = '\0';
sfr->data[size - 1] = '\0';
dev_err_ratelimited(dev, "SFR message from FW: %s\n", sfr->data);
}