media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.18 and later | 6.1.167, 6.6.128, 6.12.75, 6.18.16, 6.19.6, 7.0 | Patch available | CNA |
- Linux VendorLinux Affected 5.18 and later Fixed in 6.1.167, 6.6.128, 6.12.75, 6.18.16, 6.19.6, 7.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.18 to before 6.1.167; 6.2 to before 6.6.128; 6.7 to before 6.12.75; 6.13 to before 6.18.16; 6.19 to before 6.19.6 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.18 to before 6.1.167; 6.2 to before 6.6.128; 6.7 to before 6.12.75; 6.13 to before 6.18.16; 6.19 to before 6.19.6 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.167, 6.6.128, 6.12.75, 6.18.16, 6.19.6, 7.0
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-43256
- 2026-10-03 Alias added: GHSA-f426-43f4-xjrc
- 2026-10-20 Affected versions changed · Red Hat
References
Patch 6
- https://git.kernel.org/stable/c/e6cbf765686fb6c1d8f2530b3daf6c66efc92f5d
- https://git.kernel.org/stable/c/0c074e80921fd18984b75836730d76c768c84f65
- https://git.kernel.org/stable/c/1b103307df6d461a0731be25aca69ad0335b0933
- https://git.kernel.org/stable/c/fade67c88870f497a13ed450ba01f7236c92dd9b
- https://git.kernel.org/stable/c/e7a38ecda2498e7ce998793ac2a46ca47317635d
- https://git.kernel.org/stable/c/d965919af524e68cb2ab1a685872050ad2ee933d
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2026-43256 · CVE Program
- CVE-2026-43256 · NVD
- FIRST EPSS
- GHSA-f426-43f4-xjrc · GitHub Advisory Database · CC BY 4.0
- CVE-2026-43256 · Red Hat security data · CC BY 4.0
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