Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5 meson vdec_open memory leak

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.83-

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5 and classified as problematic. The affected element is the function vdec_open of the component meson. Executing a manipulation can lead to memory leak. This vulnerability is registered as CVE-2026-68223. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.6.147/6.12.100/6.18.41/7.1.5 and classified as problematic. This vulnerability affects the function vdec_open of the component meson. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2026-68223 since 07/30/2026. The exploitation appears to be easy. The attack needs to be approached locally. The exploitation requires an enhanced level of successful authentication. There are known technical details, but no exploit is available.

Upgrading to version 6.6.148, 6.12.101, 6.18.42, 7.1.6 or 7.2-rc1 eliminates this vulnerability. Applying the patch c6cd08a71a630f19b10c318e76e3c56e1dd10e00/2cf0171ad594860e31723c671e37824ce12c01ea/1391b75bf0119b5d37f1c1c3078d452a01967f9b/99f3527bd1a27ff798d59177ed045b0dd87deaef/940f161f734b25f175a95d2684c2021f6323693a is able to eliminate this problem.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.148/6.12.101/6.18.42/7.1.6/7.2-rc1
Patch: c6cd08a71a630f19b10c318e76e3c56e1dd10e00/2cf0171ad594860e31723c671e37824ce12c01ea/1391b75bf0119b5d37f1c1c3078d452a01967f9b/99f3527bd1a27ff798d59177ed045b0dd87deaef/940f161f734b25f175a95d2684c2021f6323693a

Timelineinfo

07/30/2026 CVE reserved
08/10/2026 +11 days Advisory disclosed
08/10/2026 +0 days VulDB entry created
08/10/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-68223 (🔒)
GCVE (CVE): GCVE-0-2026-68223
GCVE (VulDB): GCVE-100-387580

Entryinfo

Created: 08/10/2026 16:24
Changes: 08/10/2026 16:24 (59)
Complete: 🔍
Cache ID: 216::103

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