# CVE-2026-68223: media: meson: vdec: Fix memory leak in error path of vdec\_open

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-08-10 · Updated: 2026-08-19

## Affected

- Linux: version range not reported
- Linux: 5.3

## Description

In the Linux kernel, the following vulnerability has been resolved: media: meson: vdec: Fix memory leak in error path of vdec_open The vdec_open() function previously jumped directly to err_m2m_release when vdec_init_ctrls() failed, skipping release of the m2m context. This caused a resource leak. Fix it by introducing a proper err_m2m_ctx_release label that calls v4l2_m2m_ctx_release(sess->m2m_ctx) before releasing the m2m device. This was identified via kmemleak: unreferenced object 0xffff0000205d6878 (size 8): comm "v4l_id", pid 5289, jiffies 4294938580 hex dump (first 8 bytes): 40 d2 49 18 00 00 ff ff @.I..... backtrace (crc d3204599): kmemleak_alloc+0xc8/0xf0 __kvmalloc_node_noprof+0x60c/0x850 v4l2_ctrl_handler_init_class+0x1b4/0x2e8 [videodev] vdec_open+0x1f4/0x788 [meson_vdec] v4l2_open+0x144/0x460 [videodev] chrdev_open+0x1ac/0x500 do_dentry_open+0x3f0/0xfe8 vfs_open+0x68/0x320 do_open+0x2d8/0x9a8 path_openat+0x1d0/0x4f0 do_filp_open+0x190/0x380 do_sys_openat2+0xf8/0x1b0 __arm64_sys_openat+0x13c/0x1e8 invoke_syscall+0xdc/0x268 el0_svc_common.constprop.0+0x178/0x258 do_el0_svc+0x4c/0x70

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
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## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/5f97120d1a50c9efffe54425fac42bb7ef13ac86
- https://git.kernel.org/stable/c/fb77d6f4580f316c9148b942af0028ee489d121e
- https://git.kernel.org/stable/c/d9058a19731036c03a779bfe8c3ca0d9aa198599
- https://git.kernel.org/stable/c/c6cd08a71a630f19b10c318e76e3c56e1dd10e00
- https://git.kernel.org/stable/c/2cf0171ad594860e31723c671e37824ce12c01ea
- https://git.kernel.org/stable/c/1391b75bf0119b5d37f1c1c3078d452a01967f9b
- https://git.kernel.org/stable/c/99f3527bd1a27ff798d59177ed045b0dd87deaef
- https://git.kernel.org/stable/c/940f161f734b25f175a95d2684c2021f6323693a

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Page: https://cve.now/CVE-2026-68223
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