CVE-2026-43256

Summary

In the Linux kernel, the following vulnerability has been resolved:

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update()

vfe_isr() iterates using MSM_VFE_IMAGE_MASTERS_NUM(7) as the loop bound and passes the index to vfe_isr_reg_update(). However, vfe->line[] array is defined with VFE_LINE_NUM_MAX(4):

struct vfe_line line[VFE_LINE_NUM_MAX];

When index is 4, 5, 6, the access to vfe->line[line_id] exceeds the array bounds and resulting in out-of-bounds memory access.

Fix this by using separate loops for output lines and write masters.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux4edc8eae715cecf5f8bf12a0c77c281f336c37db < e6cbf765686fb6c1d8f2530b3daf6c66efc92f5daffected
LinuxLinux4edc8eae715cecf5f8bf12a0c77c281f336c37db < 0c074e80921fd18984b75836730d76c768c84f65affected
LinuxLinux4edc8eae715cecf5f8bf12a0c77c281f336c37db < 1b103307df6d461a0731be25aca69ad0335b0933affected
LinuxLinux4edc8eae715cecf5f8bf12a0c77c281f336c37db < fade67c88870f497a13ed450ba01f7236c92dd9baffected
LinuxLinux4edc8eae715cecf5f8bf12a0c77c281f336c37db < e7a38ecda2498e7ce998793ac2a46ca47317635daffected
LinuxLinux4edc8eae715cecf5f8bf12a0c77c281f336c37db < d965919af524e68cb2ab1a685872050ad2ee933daffected
LinuxLinux5.18affected
LinuxLinux0 < 5.18unaffected
LinuxLinux6.1.167 <= 6.1.*unaffected
LinuxLinux6.6.128 <= 6.6.*unaffected
LinuxLinux6.12.75 <= 6.12.*unaffected
LinuxLinux6.18.16 <= 6.18.*unaffected
LinuxLinux6.19.6 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References