{"id":"CVE-2026-68220","state":"PUBLISHED","title":"media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe\n\nBoth mxc_isi_crossbar_init() and mxc_isi_pipe_init() call\nv4l2_subdev_init_finalize() which allocates the subdev active state,\nbut neither mxc_isi_crossbar_cleanup() nor mxc_isi_pipe_cleanup()\ncalls v4l2_subdev_cleanup() to free it.\n\nThis causes a memory leak on every rmmod, reported by kmemleak:\n\n  unreferenced object 0xffff0000d06fc800 (size 192):\n    comm \"(udev-worker)\", pid 254, jiffies 4294913455\n    backtrace (crc 36eeae58):\n      kmemleak_alloc+0x34/0x40\n      __kvmalloc_node_noprof+0x5f8/0x7d8\n      __v4l2_subdev_state_alloc+0x1fc/0x30c\n      __v4l2_subdev_init_finalize+0x178/0x368\n\nAdd the missing v4l2_subdev_cleanup() calls before media_entity_cleanup()\nin both crossbar and pipe cleanup paths.","publishedAt":"2026-08-10T12:00:40.434Z","updatedAt":"2026-08-17T05:01:06.897Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"549dd1afce2cf79a826d1f9742effb4565d52871","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"f04ec98605420e7c2c1ad6d2f6fb26692d4f218a","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"9e61258fbc3cfc053e4c2ed72254c2de76772354","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"567418eedd25b3d86d489807682030b4b98b73d9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c","drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c","drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"]}],"references":["https://git.kernel.org/stable/c/549dd1afce2cf79a826d1f9742effb4565d52871","https://git.kernel.org/stable/c/f04ec98605420e7c2c1ad6d2f6fb26692d4f218a","https://git.kernel.org/stable/c/9e61258fbc3cfc053e4c2ed72254c2de76772354","https://git.kernel.org/stable/c/9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5","https://git.kernel.org/stable/c/567418eedd25b3d86d489807682030b4b98b73d9"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68220.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68220","state":"PUBLISHED","datePublished":"2026-08-10T12:00:40.434Z","dateUpdated":"2026-08-17T05:01:06.897Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.375Z"},"containers":{"cna":{"title":"media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe\n\nBoth mxc_isi_crossbar_init() and mxc_isi_pipe_init() call\nv4l2_subdev_init_finalize() which allocates the subdev active state,\nbut neither mxc_isi_crossbar_cleanup() nor mxc_isi_pipe_cleanup()\ncalls v4l2_subdev_cleanup() to free it.\n\nThis causes a memory leak on every rmmod, reported by kmemleak:\n\n  unreferenced object 0xffff0000d06fc800 (size 192):\n    comm \"(udev-worker)\", pid 254, jiffies 4294913455\n    backtrace (crc 36eeae58):\n      kmemleak_alloc+0x34/0x40\n      __kvmalloc_node_noprof+0x5f8/0x7d8\n      __v4l2_subdev_state_alloc+0x1fc/0x30c\n      __v4l2_subdev_init_finalize+0x178/0x368\n\nAdd the missing v4l2_subdev_cleanup() calls before media_entity_cleanup()\nin both crossbar and pipe cleanup paths."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"549dd1afce2cf79a826d1f9742effb4565d52871","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"f04ec98605420e7c2c1ad6d2f6fb26692d4f218a","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"9e61258fbc3cfc053e4c2ed72254c2de76772354","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5","versionType":"git"},{"version":"cf21f328fcafacf4f96e7a30ef9dceede1076378","status":"affected","lessThan":"567418eedd25b3d86d489807682030b4b98b73d9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c","drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c","drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/549dd1afce2cf79a826d1f9742effb4565d52871"},{"url":"https://git.kernel.org/stable/c/f04ec98605420e7c2c1ad6d2f6fb26692d4f218a"},{"url":"https://git.kernel.org/stable/c/9e61258fbc3cfc053e4c2ed72254c2de76772354"},{"url":"https://git.kernel.org/stable/c/9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5"},{"url":"https://git.kernel.org/stable/c/567418eedd25b3d86d489807682030b4b98b73d9"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:01:06.897Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}